diff options
Diffstat (limited to 'Documentation/RelNotes')
| -rw-r--r-- | Documentation/RelNotes/2.10.0.txt | 675 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.10.1.txt | 131 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.11.0.txt | 372 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.3.10.txt | 2 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.4.10.txt | 2 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.4.11.txt | 11 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.5.4.txt | 2 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.5.5.txt | 11 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.6.1.txt | 2 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.6.6.txt | 11 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.7.3.txt | 62 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.7.4.txt | 11 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.8.0.txt | 231 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.8.1.txt | 9 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.8.2.txt | 70 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.8.3.txt | 101 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.8.4.txt | 69 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.9.0.txt | 512 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.9.1.txt | 117 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.9.2.txt | 13 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.9.3.txt | 170 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.9.4.txt | 83 |
22 files changed, 2608 insertions, 59 deletions
diff --git a/Documentation/RelNotes/2.10.0.txt b/Documentation/RelNotes/2.10.0.txt new file mode 100644 index 0000000..f4da28a --- /dev/null +++ b/Documentation/RelNotes/2.10.0.txt @@ -0,0 +1,675 @@ +Git 2.10 Release Notes +====================== + +Backward compatibility notes +---------------------------- + +Updates since v2.9 +------------------ + +UI, Workflows & Features + + * "git pull --rebase --verify-signature" learned to warn the user + that "--verify-signature" is a no-op when rebasing. + + * An upstream project can make a recommendation to shallowly clone + some submodules in the .gitmodules file it ships. + + * "git worktree add" learned that '-' can be used as a short-hand for + "@{-1}", the previous branch. + + * Update the funcname definition to support css files. + + * The completion script (in contrib/) learned to complete "git + status" options. + + * Messages that are generated by auto gc during "git push" on the + receiving end are now passed back to the sending end in such a way + that they are shown with "remote: " prefix to avoid confusing the + users. + + * "git add -i/-p" learned to honor diff.compactionHeuristic + experimental knob, so that the user can work on the same hunk split + as "git diff" output. + + * "upload-pack" allows a custom "git pack-objects" replacement when + responding to "fetch/clone" via the uploadpack.packObjectsHook. + (merge b738396 jk/upload-pack-hook later to maint). + + * Teach format-patch and mailsplit (hence "am") how a line that + happens to begin with "From " in the e-mail message is quoted with + ">", so that these lines can be restored to their original shape. + (merge d9925d1 ew/mboxrd-format-am later to maint). + + * "git repack" learned the "--keep-unreachable" option, which sends + loose unreachable objects to a pack instead of leaving them loose. + This helps heuristics based on the number of loose objects + (e.g. "gc --auto"). + (merge e26a8c4 jk/repack-keep-unreachable later to maint). + + * "log --graph --format=" learned that "%>|(N)" specifies the width + relative to the terminal's left edge, not relative to the area to + draw text that is to the right of the ancestry-graph section. It + also now accepts negative N that means the column limit is relative + to the right border. + + * A careless invocation of "git send-email directory/" after editing + 0001-change.patch with an editor often ends up sending both + 0001-change.patch and its backup file, 0001-change.patch~, causing + embarrassment and a minor confusion. Detect such an input and + offer to skip the backup files when sending the patches out. + (merge 531220b jc/send-email-skip-backup later to maint). + + * "git submodule update" that drives many "git clone" could + eventually hit flaky servers/network conditions on one of the + submodules; the command learned to retry the attempt. + + * The output coloring scheme learned two new attributes, italic and + strike, in addition to existing bold, reverse, etc. + + * "git log" learns log.showSignature configuration variable, and a + command line option "--no-show-signature" to countermand it. + (merge fce04c3 mj/log-show-signature-conf later to maint). + + * More markings of messages for i18n, with updates to various tests + to pass GETTEXT_POISON tests. + + * "git archive" learned to handle files that are larger than 8GB and + commits far in the future than expressible by the traditional US-TAR + format. + (merge 560b0e8 jk/big-and-future-archive-tar later to maint). + + + * A new configuration variable core.sshCommand has been added to + specify what value for GIT_SSH_COMMAND to use per repository. + + * "git worktree prune" protected worktrees that are marked as + "locked" by creating a file in a known location. "git worktree" + command learned a dedicated command pair to create and remove such + a file, so that the users do not have to do this with editor. + + * A handful of "git svn" updates. + + * "git push" learned to accept and pass extra options to the + receiving end so that hooks can read and react to them. + + * "git status" learned to suggest "merge --abort" during a conflicted + merge, just like it already suggests "rebase --abort" during a + conflicted rebase. + + * "git jump" script (in contrib/) has been updated a bit. + (merge a91e692 jk/git-jump later to maint). + + * "git push" and "git clone" learned to give better progress meters + to the end user who is waiting on the terminal. + + * An entry "git log --decorate" for the tip of the current branch is + shown as "HEAD -> name" (where "name" is the name of the branch); + the arrow is now painted in the same color as "HEAD", not in the + color for commits. + + * "git format-patch" learned format.from configuration variable to + specify the default settings for its "--from" option. + + * "git am -3" calls "git merge-recursive" when it needs to fall back + to a three-way merge; this call has been turned into an internal + subroutine call instead of spawning a separate subprocess. + + * The command line completion scripts (in contrib/) now knows about + "git branch --delete/--move [--remote]". + (merge 2703c22 vs/completion-branch-fully-spelled-d-m-r later to maint). + + * "git rev-parse --git-path hooks/<hook>" learned to take + core.hooksPath configuration variable (introduced during 2.9 cycle) + into account. + (merge 9445b49 ab/hooks later to maint). + + * "git log --show-signature" and other commands that display the + verification status of PGP signature now shows the longer key-id, + as 32-bit key-id is so last century. + + +Performance, Internal Implementation, Development Support etc. + + * "git fast-import" learned the same performance trick to avoid + creating too small a packfile as "git fetch" and "git push" have, + using *.unpackLimit configuration. + + * When "git daemon" is run without --[init-]timeout specified, a + connection from a client that silently goes offline can hang around + for a long time, wasting resources. The socket-level KEEPALIVE has + been enabled to allow the OS to notice such failed connections. + + * "git upload-pack" command has been updated to use the parse-options + API. + + * The "git apply" standalone program is being libified; the first + step to move many state variables into a structure that can be + explicitly (re)initialized to make the machinery callable more + than once has been merged. + + * HTTP transport gained an option to produce more detailed debugging + trace. + (merge 73e57aa ep/http-curl-trace later to maint). + + * Instead of taking advantage of the fact that a struct string_list + that is allocated with all NULs happens to be the INIT_NODUP kind, + the users of string_list structures are taught to initialize them + explicitly as such, to document their behaviour better. + (merge 2721ce2 jk/string-list-static-init later to maint). + + * HTTPd tests learned to show the server error log to help diagnosing + a failing tests. + (merge 44f243d nd/test-lib-httpd-show-error-log-in-verbose later to maint). + + * The ownership rule for the piece of memory that hold references to + be fetched in "git fetch" was screwy, which has been cleaned up. + + * "git bisect" makes an internal call to "git diff-tree" when + bisection finds the culprit, but this call did not initialize the + data structure to pass to the diff-tree API correctly. + + * Further preparatory clean-up for "worktree" feature continues. + (merge 0409e0b nd/worktree-cleanup-post-head-protection later to maint). + + * Formats of the various data (and how to validate them) where we use + GPG signature have been documented. + + * A new run-command API function pipe_command() is introduced to + sanely feed data to the standard input while capturing data from + the standard output and the standard error of an external process, + which is cumbersome to hand-roll correctly without deadlocking. + + * The codepath to sign data in a prepared buffer with GPG has been + updated to use this API to read from the status-fd to check for + errors (instead of relying on GPG's exit status). + (merge efee955 jk/gpg-interface-cleanup later to maint). + + * Allow t/perf framework to use the features from the most recent + version of Git even when testing an older installed version. + + * The commands in the "log/diff" family have had an FILE* pointer in the + data structure they pass around for a long time, but some codepaths + used to always write to the standard output. As a preparatory step + to make "git format-patch" available to the internal callers, these + codepaths have been updated to consistently write into that FILE* + instead. + + * Conversion from unsigned char sha1[20] to struct object_id + continues. + + * Improve the look of the way "git fetch" reports what happened to + each ref that was fetched. + + * The .c/.h sources are marked as such in our .gitattributes file so + that "git diff -W" and friends would work better. + + * Code clean-up to avoid using a variable string that compilers may + feel untrustable as printf-style format given to write_file() + helper function. + + * "git p4" used a location outside $GIT_DIR/refs/ to place its + temporary branches, which has been moved to refs/git-p4-tmp/. + + * Existing autoconf generated test for the need to link with pthread + library did not check all the functions from pthread libraries; + recent FreeBSD has some functions in libc but not others, and we + mistakenly thought linking with libc is enough when it is not. + + * When "git fsck" reports a broken link (e.g. a tree object contains + a blob that does not exist), both containing object and the object + that is referred to were reported with their 40-hex object names. + The command learned the "--name-objects" option to show the path to + the containing object from existing refs (e.g. "HEAD~24^2:file.txt"). + + * Allow http daemon tests in Travis CI tests. + + * Makefile assumed that -lrt is always available on platforms that + want to use clock_gettime() and CLOCK_MONOTONIC, which is not a + case for recent Mac OS X. The necessary symbols are often found in + libc on many modern systems and having -lrt on the command line, as + long as the library exists, had no effect, but when the platform + removes librt.a that is a different matter--having -lrt will break + the linkage. + + This change could be seen as a regression for those who do need to + specify -lrt, as they now specifically ask for NEEDS_LIBRT when + building. Hopefully they are in the minority these days. + + * Further preparatory work on the refs API before the pluggable + backend series can land. + + * Error handling in the codepaths that updates refs has been + improved. + + * The API to iterate over all the refs (i.e. for_each_ref(), etc.) + has been revamped. + + * The handling of the "text=auto" attribute has been corrected. + $ echo "* text=auto eol=crlf" >.gitattributes + used to have the same effect as + $ echo "* text eol=crlf" >.gitattributes + i.e. declaring all files are text (ignoring "auto"). The + combination has been fixed to be equivalent to doing + $ git config core.autocrlf true + + * Documentation has been updated to show better example usage + of the updated "text=auto" attribute. + + * A few tests that specifically target "git rebase -i" have been + added. + + * Dumb http transport on the client side has been optimized. + (merge ecba195 ew/http-walker later to maint). + + * Users of the parse_options_concat() API function need to allocate + extra slots in advance and fill them with OPT_END() when they want + to decide the set of supported options dynamically, which makes the + code error-prone and hard to read. This has been corrected by tweaking + the API to allocate and return a new copy of "struct option" array. + + * "git fetch" exchanges batched have/ack messages between the sender + and the receiver, initially doubling every time and then falling + back to enlarge the window size linearly. The "smart http" + transport, being an half-duplex protocol, outgrows the preset limit + too quickly and becomes inefficient when interacting with a large + repository. The internal mechanism learned to grow the window size + more aggressively when working with the "smart http" transport. + + * Tests for "git svn" have been taught to reuse the lib-httpd test + infrastructure when testing the subversion integration that + interacts with subversion repositories served over the http:// + protocol. + (merge a8a5d25 ew/git-svn-http-tests later to maint). + + * "git pack-objects" has a few options that tell it not to pack + objects found in certain packfiles, which require it to scan .idx + files of all available packs. The codepaths involved in these + operations have been optimized for a common case of not having any + non-local pack and/or any .kept pack. + + * The t3700 test about "add --chmod=-x" have been made a bit more + robust and generally cleaned up. + (merge 766cdc4 ib/t3700-add-chmod-x-updates later to maint). + + * The build procedure learned PAGER_ENV knob that lists what default + environment variable settings to export for popular pagers. This + mechanism is used to tweak the default settings to MORE on FreeBSD. + (merge 995bc22 ew/build-time-pager-tweaks later to maint). + + * The http-backend (the server-side component of smart-http + transport) used to trickle the HTTP header one at a time. Now + these write(2)s are batched. + (merge b36045c ew/http-backend-batch-headers later to maint). + + * When "git rebase" tries to compare set of changes on the updated + upstream and our own branch, it computes patch-id for all of these + changes and attempts to find matches. This has been optimized by + lazily computing the full patch-id (which is expensive) to be + compared only for changes that touch the same set of paths. + (merge ba67504 kw/patch-ids-optim later to maint). + + * A handful of tests that were broken under gettext-poison build have + been fixed. + + * The recent i18n patch we added during this cycle did a bit too much + refactoring of the messages to avoid word-legos; the repetition has + been reduced to help translators. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.9 +---------------- + +Unless otherwise noted, all the fixes since v2.8 in the maintenance +track are contained in this release (see the maintenance releases' +notes for details). + + * The commands in `git log` family take %C(auto) in a custom format + string. This unconditionally turned the color on, ignoring + --no-color or with --color=auto when the output is not connected to + a tty; this was corrected to make the format truly behave as + "auto". + + * "git rev-list --count" whose walk-length is limited with "-n" + option did not work well with the counting optimized to look at the + bitmap index. + + * "git show -W" (extend hunks to cover the entire function, delimited + by lines that match the "funcname" pattern) used to show the entire + file when a change added an entire function at the end of the file, + which has been fixed. + + * The documentation set has been updated so that literal commands, + configuration variables and environment variables are consistently + typeset in fixed-width font and bold in manpages. + + * "git svn propset" subcommand that was added in 2.3 days is + documented now. + + * The documentation tries to consistently spell "GPG"; when + referring to the specific program name, "gpg" is used. + + * "git reflog" stopped upon seeing an entry that denotes a branch + creation event (aka "unborn"), which made it appear as if the + reflog was truncated. + + * The git-prompt scriptlet (in contrib/) was not friendly with those + who uses "set -u", which has been fixed. + + * compat/regex code did not cleanly compile. + + * A codepath that used alloca(3) to place an unbounded amount of data + on the stack has been updated to avoid doing so. + + * "git update-index --add --chmod=+x file" may be usable as an escape + hatch, but not a friendly thing to force for people who do need to + use it regularly. "git add --chmod=+x file" can be used instead. + + * Build improvements for gnome-keyring (in contrib/) + + * "git status" used to say "working directory" when it meant "working + tree". + + * Comments about misbehaving FreeBSD shells have been clarified with + the version number (9.x and before are broken, newer ones are OK). + + * "git cherry-pick A" worked on an unborn branch, but "git + cherry-pick A..B" didn't. + + * Fix an unintended regression in v2.9 that breaks "clone --depth" + that recurses down to submodules by forcing the submodules to also + be cloned shallowly, which many server instances that host upstream + of the submodules are not prepared for. + + * Fix unnecessarily waste in the idiomatic use of ': ${VAR=default}' + to set the default value, without enclosing it in double quotes. + + * Some platform-specific code had non-ANSI strict declarations of C + functions that do not take any parameters, which has been + corrected. + + * The internal code used to show local timezone offset is not + prepared to handle timestamps beyond year 2100, and gave a + bogus offset value to the caller. Use a more benign looking + +0000 instead and let "git log" going in such a case, instead + of aborting. + + * One among four invocations of readlink(1) in our test suite has + been rewritten so that the test can run on systems without the + command (others are in valgrind test framework and t9802). + + * t/perf needs /usr/bin/time with GNU extension; the invocation of it + is updated to "gtime" on Darwin. + + * A bug, which caused "git p4" while running under verbose mode to + report paths that are omitted due to branch prefix incorrectly, has + been fixed; the command said "Ignoring file outside of prefix" for + paths that are _inside_. + + * The top level documentation "git help git" still pointed at the + documentation set hosted at now-defunct google-code repository. + Update it to point to https://git.github.io/htmldocs/git.html + instead. + + * A helper function that takes the contents of a commit object and + finds its subject line did not ignore leading blank lines, as is + commonly done by other codepaths. Make it ignore leading blank + lines to match. + + * For a long time, we carried an in-code comment that said our + colored output would work only when we use fprintf/fputs on + Windows, which no longer is the case for the past few years. + + * "gc.autoPackLimit" when set to 1 should not trigger a repacking + when there is only one pack, but the code counted poorly and did + so. + + * Add a test to specify the desired behaviour that currently is not + available in "git rebase -Xsubtree=...". + + * More mark-up updates to typeset strings that are expected to + literally typed by the end user in fixed-width font. + + * "git commit --amend --allow-empty-message -S" for a commit without + any message body could have misidentified where the header of the + commit object ends. + + * "git rebase -i --autostash" did not restore the auto-stashed change + when the operation was aborted. + + * Git does not know what the contents in the index should be for a + path added with "git add -N" yet, so "git grep --cached" should not + show hits (or show lack of hits, with -L) in such a path, but that + logic does not apply to "git grep", i.e. searching in the working + tree files. But we did so by mistake, which has been corrected. + + * "git blame -M" missed a single line that was moved within the file. + + * Fix recently introduced codepaths that are involved in parallel + submodule operations, which gave up on reading too early, and + could have wasted CPU while attempting to write under a corner + case condition. + + * "git grep -i" has been taught to fold case in non-ascii locales + correctly. + + * A test that unconditionally used "mktemp" learned that the command + is not necessarily available everywhere. + + * There are certain house-keeping tasks that need to be performed at + the very beginning of any Git program, and programs that are not + built-in commands had to do them exactly the same way as "git" + potty does. It was easy to make mistakes in one-off standalone + programs (like test helpers). A common "main()" function that + calls cmd_main() of individual program has been introduced to + make it harder to make mistakes. + (merge de61ceb jk/common-main later to maint). + + * The test framework learned a new helper test_match_signal to + check an exit code from getting killed by an expected signal. + + * General code clean-up around a helper function to write a + single-liner to a file. + (merge 7eb6e10 jk/write-file later to maint). + + * One part of "git am" had an oddball helper function that called + stuff from outside "his" as opposed to calling what we have "ours", + which was not gender-neutral and also inconsistent with the rest of + the system where outside stuff is usuall called "theirs" in + contrast to "ours". + + * "git blame file" allowed the lineage of lines in the uncommitted, + unadded contents of "file" to be inspected, but it refused when + "file" did not appear in the current commit. When "file" was + created by renaming an existing file (but the change has not been + committed), this restriction was unnecessarily tight. + + * "git add -N dir/file && git write-tree" produced an incorrect tree + when there are other paths in the same directory that sorts after + "file". + + * "git fetch http://user:pass@host/repo..." scrubbed the userinfo + part, but "git push" didn't. + + * "git merge" with renormalization did not work well with + merge-recursive, due to "safer crlf" conversion kicking in when it + shouldn't. + (merge 1335d76 jc/renormalize-merge-kill-safer-crlf later to maint). + + * The use of strbuf in "git rm" to build filename to remove was a bit + suboptimal, which has been fixed. + + * An age old bug that caused "git diff --ignore-space-at-eol" + misbehave has been fixed. + + * "git notes merge" had a code to see if a path exists (and fails if + it does) and then open the path for writing (when it doesn't). + Replace it with open with O_EXCL. + + * "git pack-objects" and "git index-pack" mostly operate with off_t + when talking about the offset of objects in a packfile, but there + were a handful of places that used "unsigned long" to hold that + value, leading to an unintended truncation. + + * Recent update to "git daemon" tries to enable the socket-level + KEEPALIVE, but when it is spawned via inetd, the standard input + file descriptor may not necessarily be connected to a socket. + Suppress an ENOTSOCK error from setsockopt(). + + * Recent FreeBSD stopped making perl available at /usr/bin/perl; + switch the default the built-in path to /usr/local/bin/perl on not + too ancient FreeBSD releases. + + * "git commit --help" said "--no-verify" is only about skipping the + pre-commit hook, and failed to say that it also skipped the + commit-msg hook. + + * "git merge" in Git v2.9 was taught to forbid merging an unrelated + lines of history by default, but that is exactly the kind of thing + the "--rejoin" mode of "git subtree" (in contrib/) wants to do. + "git subtree" has been taught to use the "--allow-unrelated-histories" + option to override the default. + + * The build procedure for "git persistent-https" helper (in contrib/) + has been updated so that it can be built with more recent versions + of Go. + + * There is an optimization used in "git diff $treeA $treeB" to borrow + an already checked-out copy in the working tree when it is known to + be the same as the blob being compared, expecting that open/mmap of + such a file is faster than reading it from the object store, which + involves inflating and applying delta. This however kicked in even + when the checked-out copy needs to go through the convert-to-git + conversion (including the clean filter), which defeats the whole + point of the optimization. The optimization has been disabled when + the conversion is necessary. + + * "git -c grep.patternType=extended log --basic-regexp" misbehaved + because the internal API to access the grep machinery was not + designed well. + + * Windows port was failing some tests in t4130, due to the lack of + inum in the returned values by its lstat(2) emulation. + + * The reflog output format is documented better, and a new format + --date=unix to report the seconds-since-epoch (without timezone) + has been added. + (merge 442f6fd jk/reflog-date later to maint). + + * "git difftool <paths>..." started in a subdirectory failed to + interpret the paths relative to that directory, which has been + fixed. + + * The characters in the label shown for tags/refs for commits in + "gitweb" output are now properly escaped for proper HTML output. + + * FreeBSD can lie when asked mtime of a directory, which made the + untracked cache code to fall back to a slow-path, which in turn + caused tests in t7063 to fail because it wanted to verify the + behaviour of the fast-path. + + * Squelch compiler warnings for nedmalloc (in compat/) library. + + * A small memory leak in the command line parsing of "git blame" + has been plugged. + + * The API documentation for hashmap was unclear if hashmap_entry + can be safely discarded without any other consideration. State + that it is safe to do so. + + * Not-so-recent rewrite of "git am" that started making internal + calls into the commit machinery had an unintended regression, in + that no matter how many seconds it took to apply many patches, the + resulting committer timestamp for the resulting commits were all + the same. + + * "git push --force-with-lease" already had enough logic to allow + ensuring that such a push results in creation of a ref (i.e. the + receiving end did not have another push from sideways that would be + discarded by our force-pushing), but didn't expose this possibility + to the users. It does so now. + (merge 9eed4f3 jk/push-force-with-lease-creation later to maint). + + * The mechanism to limit the pack window memory size, when packing is + done using multiple threads (which is the default), is per-thread, + but this was not documented clearly. + (merge 954176c ms/document-pack-window-memory-is-per-thread later to maint). + + * "import-tars" fast-import script (in contrib/) used to ignore a + hardlink target and replaced it with an empty file, which has been + corrected to record the same blob as the other file the hardlink is + shared with. + (merge 04e0869 js/import-tars-hardlinks later to maint). + + * "git mv dir non-existing-dir/" did not work in some environments + the same way as existing mainstream platforms. The code now moves + "dir" to "non-existing-dir", without relying on rename("A", "B/") + that strips the trailing slash of '/'. + (merge 189d035 js/mv-dir-to-new-directory later to maint). + + * The "t/" hierarchy is prone to get an unusual pathname; "make test" + has been taught to make sure they do not contain paths that cannot + be checked out on Windows (and the mechanism can be reusable to + catch pathnames that are not portable to other platforms as need + arises). + (merge c2cafd3 js/test-lint-pathname later to maint). + + * When "git merge-recursive" works on history with many criss-cross + merges in "verbose" mode, the names the command assigns to the + virtual merge bases could have overwritten each other by unintended + reuse of the same piece of memory. + (merge 5447a76 rs/pull-signed-tag later to maint). + + * "git checkout --detach <branch>" used to give the same advice + message as that is issued when "git checkout <tag>" (or anything + that is not a branch name) is given, but asking with "--detach" is + an explicit enough sign that the user knows what is going on. The + advice message has been squelched in this case. + (merge 779b88a sb/checkout-explit-detach-no-advice later to maint). + + * "git difftool" by default ignores the error exit from the backend + commands it spawns, because often they signal that they found + differences by exiting with a non-zero status code just like "diff" + does; the exit status codes 126 and above however are special in + that they are used to signal that the command is not executable, + does not exist, or killed by a signal. "git difftool" has been + taught to notice these exit status codes. + (merge 45a4f5d jk/difftool-command-not-found later to maint). + + * On Windows, help.browser configuration variable used to be ignored, + which has been corrected. + (merge 6db5967 js/no-html-bypass-on-windows later to maint). + + * The "git -c var[=val] cmd" facility to append a configuration + variable definition at the end of the search order was described in + git(1) manual page, but not in git-config(1), which was more likely + place for people to look for when they ask "can I make a one-shot + override, and if so how?" + (merge ae1f709 dg/document-git-c-in-git-config-doc later to maint). + + * The tempfile (hence its user lockfile) API lets the caller to open + a file descriptor to a temporary file, write into it and then + finalize it by first closing the filehandle and then either + removing or renaming the temporary file. When the process spawns a + subprocess after obtaining the file descriptor, and if the + subprocess has not exited when the attempt to remove or rename is + made, the last step fails on Windows, because the subprocess has + the file descriptor still open. Open tempfile with O_CLOEXEC flag + to avoid this (on Windows, this is mapped to O_NOINHERIT). + (merge 05d1ed6 bw/mingw-avoid-inheriting-fd-to-lockfile later to maint). + + * Correct an age-old calco (is that a typo-like word for calc) + in the documentation. + (merge 7841c48 ls/packet-line-protocol-doc-fix later to maint). + + * Other minor clean-ups and documentation updates + (merge 02a8cfa rs/merge-add-strategies-simplification later to maint). + (merge af4941d rs/merge-recursive-string-list-init later to maint). + (merge 1eb47f1 rs/use-strbuf-add-unique-abbrev later to maint). + (merge ddd0bfa jk/tighten-alloc later to maint). + (merge ecf30b2 rs/mailinfo-lib later to maint). + (merge 0eb75ce sg/reflog-past-root later to maint). + (merge 4369523 hv/doc-commit-reference-style later to maint). diff --git a/Documentation/RelNotes/2.10.1.txt b/Documentation/RelNotes/2.10.1.txt new file mode 100644 index 0000000..70462f7 --- /dev/null +++ b/Documentation/RelNotes/2.10.1.txt @@ -0,0 +1,131 @@ +Git v2.10.1 Release Notes +========================= + +Fixes since v2.10 +----------------- + + * Clarify various ways to specify the "revision ranges" in the + documentation. + + * "diff-highlight" script (in contrib/) learned to work better with + "git log -p --graph" output. + + * The test framework left the number of tests and success/failure + count in the t/test-results directory, keyed by the name of the + test script plus the process ID. The latter however turned out not + to serve any useful purpose. The process ID part of the filename + has been removed. + + * Having a submodule whose ".git" repository is somehow corrupt + caused a few commands that recurse into submodules loop forever. + + * "git symbolic-ref -d HEAD" happily removes the symbolic ref, but + the resulting repository becomes an invalid one. Teach the command + to forbid removal of HEAD. + + * A test spawned a short-lived background process, which sometimes + prevented the test directory from getting removed at the end of the + script on some platforms. + + * Update a few tests that used to use GIT_CURL_VERBOSE to use the + newer GIT_TRACE_CURL. + + * Update Japanese translation for "git-gui". + + * "git fetch http::/site/path" did not die correctly and segfaulted + instead. + + * "git commit-tree" stopped reading commit.gpgsign configuration + variable that was meant for Porcelain "git commit" in Git 2.9; we + forgot to update "git gui" to look at the configuration to match + this change. + + * "git log --cherry-pick" used to include merge commits as candidates + to be matched up with other commits, resulting a lot of wasted time. + The patch-id generation logic has been updated to ignore merges to + avoid the wastage. + + * The http transport (with curl-multi option, which is the default + these days) failed to remove curl-easy handle from a curlm session, + which led to unnecessary API failures. + + * "git diff -W" output needs to extend the context backward to + include the header line of the current function and also forward to + include the body of the entire current function up to the header + line of the next one. This process may have to merge to adjacent + hunks, but the code forgot to do so in some cases. + + * Performance tests done via "t/perf" did not use the same set of + build configuration if the user relied on autoconf generated + configuration. + + * "git format-patch --base=..." feature that was recently added + showed the base commit information after "-- " e-mail signature + line, which turned out to be inconvenient. The base information + has been moved above the signature line. + + * Even when "git pull --rebase=preserve" (and the underlying "git + rebase --preserve") can complete without creating any new commit + (i.e. fast-forwards), it still insisted on having a usable ident + information (read: user.email is set correctly), which was less + than nice. As the underlying commands used inside "git rebase" + would fail with a more meaningful error message and advice text + when the bogus ident matters, this extra check was removed. + + * "git gc --aggressive" used to limit the delta-chain length to 250, + which is way too deep for gaining additional space savings and is + detrimental for runtime performance. The limit has been reduced to + 50. + + * Documentation for individual configuration variables to control use + of color (like `color.grep`) said that their default value is + 'false', instead of saying their default is taken from `color.ui`. + When we updated the default value for color.ui from 'false' to + 'auto' quite a while ago, all of them broke. This has been + corrected. + + * A shell script example in check-ref-format documentation has been + fixed. + + * "git checkout <word>" does not follow the usual disambiguation + rules when the <word> can be both a rev and a path, to allow + checking out a branch 'foo' in a project that happens to have a + file 'foo' in the working tree without having to disambiguate. + This was poorly documented and the check was incorrect when the + command was run from a subdirectory. + + * Some codepaths in "git diff" used regexec(3) on a buffer that was + mmap(2)ed, which may not have a terminating NUL, leading to a read + beyond the end of the mapped region. This was fixed by introducing + a regexec_buf() helper that takes a <ptr,len> pair with REG_STARTEND + extension. + + * The procedure to build Git on Mac OS X for Travis CI hardcoded the + internal directory structure we assumed HomeBrew uses, which was a + no-no. The procedure has been updated to ask HomeBrew things we + need to know to fix this. + + * When "git rebase -i" is given a broken instruction, it told the + user to fix it with "--edit-todo", but didn't say what the step + after that was (i.e. "--continue"). + + * "git add --chmod=+x" added recently lacked documentation, which has + been corrected. + + * "git add --chmod=+x <pathspec>" added recently only toggled the + executable bit for paths that are either new or modified. This has + been corrected to flip the executable bit for all paths that match + the given pathspec. + + * "git pack-objects --include-tag" was taught that when we know that + we are sending an object C, we want a tag B that directly points at + C but also a tag A that points at the tag B. We used to miss the + intermediate tag B in some cases. + + * Documentation around tools to import from CVS was fairly outdated. + + * In the codepath that comes up with the hostname to be used in an + e-mail when the user didn't tell us, we looked at ai_canonname + field in struct addrinfo without making sure it is not NULL first. + +Also contains minor documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.11.0.txt b/Documentation/RelNotes/2.11.0.txt new file mode 100644 index 0000000..4499268 --- /dev/null +++ b/Documentation/RelNotes/2.11.0.txt @@ -0,0 +1,372 @@ +Git 2.11 Release Notes +====================== + +Updates since v2.10 +------------------- + +UI, Workflows & Features + + * "git format-patch --cover-letter HEAD^" to format a single patch + with a separate cover letter now numbers the output as [PATCH 0/1] + and [PATCH 1/1] by default. + + * An incoming "git push" that attempts to push too many bytes can now + be rejected by setting a new configuration variable at the receiving + end. + + * "git nosuchcommand --help" said "No manual entry for gitnosuchcommand", + which was not intuitive, given that "git nosuchcommand" said "git: + 'nosuchcommand' is not a git command". + + * "git clone --resurse-submodules --reference $path $URL" is a way to + reduce network transfer cost by borrowing objects in an existing + $path repository when cloning the superproject from $URL; it + learned to also peek into $path for presense of corresponding + repositories of submodules and borrow objects from there when able. + + * The "git diff --submodule={short,log}" mechanism has been enhanced + to allow "--submodule=diff" to show the patch between the submodule + commits bound to the superproject. + + * Even though "git hash-objects", which is a tool to take an + on-filesystem data stream and put it into the Git object store, + allowed to perform the "outside-world-to-Git" conversions (e.g. + end-of-line conversions and application of the clean-filter), and + it had the feature on by default from very early days, its reverse + operation "git cat-file", which takes an object from the Git object + store and externalize for the consumption by the outside world, + lacked an equivalent mechanism to run the "Git-to-outside-world" + conversion. The command learned the "--filters" option to do so. + + * Output from "git diff" can be made easier to read by selecting + which lines are common and which lines are added/deleted + intelligently when the lines before and after the changed section + are the same. A command line option is added to help with the + experiment to find a good heuristics. + + * In some projects, it is common to use "[RFC PATCH]" as the subject + prefix for a patch meant for discussion rather than application. A + new option "--rfc" was a short-hand for "--subject-prefix=RFC PATCH" + to help the participants of such projects. + + * "git add --chmod=+x <pathspec>" added recently only toggled the + executable bit for paths that are either new or modified. This has + been corrected to flip the executable bit for all paths that match + the given pathspec. + + * When "git format-patch --stdout" output is placed as an in-body + header and it uses the RFC2822 header folding, "git am" failed to + put the header line back into a single logical line. The + underlying "git mailinfo" was taught to handle this properly. + + * "gitweb" can spawn "highlight" to show blob contents with + (programming) language-specific syntax highlighting, but only + when the language is known. "highlight" can however be told + to make the guess itself by giving it "--force" option, which + has been enabled. + + * "git gui" l10n to Portuguese. + + * When given an abbreviated object name that is not (or more + realistically, "no longer") unique, we gave a fatal error + "ambiguous argument". This error is now accompanied by hints that + lists the objects that begins with the given prefix. During the + course of development of this new feature, numerous minor bugs were + uncovered and corrected, the most notable one of which is that we + gave "short SHA1 xxxx is ambiguous." twice without good reason. + + * "git log rev^..rev" is an often-used revision range specification + to show what was done on a side branch merged at rev. This has + gained a short-hand "rev^-1". In general "rev^-$n" is the same as + "^rev^$n rev", i.e. what has happened on other branches while the + history leading to nth parent was looking the other way. + + * In recent versions of cURL, GSSAPI credential delegation is + disabled by default due to CVE-2011-2192; introduce a configuration + to selectively allow enabling this. + (merge 26a7b23429 ps/http-gssapi-cred-delegation later to maint). + + +Performance, Internal Implementation, Development Support etc. + + * The delta-base-cache mechanism has been a key to the performance in + a repository with a tightly packed packfile, but it did not scale + well even with a larger value of core.deltaBaseCacheLimit. + + * Enhance "git status --porcelain" output by collecting more data on + the state of the index and the working tree files, which may + further be used to teach git-prompt (in contrib/) to make fewer + calls to git. + + * Extract a small helper out of the function that reads the authors + script file "git am" internally uses. + (merge a77598e jc/am-read-author-file later to maint). + + * Lifts calls to exit(2) and die() higher in the callchain in + sequencer.c files so that more helper functions in it can be used + by callers that want to handle error conditions themselves. + + * "git am" has been taught to make an internal call to "git apply"'s + innards without spawning the latter as a separate process. + + * The ref-store abstraction was introduced to the refs API so that we + can plug in different backends to store references. + + * The "unsigned char sha1[20]" to "struct object_id" conversion + continues. Notable changes in this round includes that ce->sha1, + i.e. the object name recorded in the cache_entry, turns into an + object_id. + + * JGit can show a fake ref "capabilities^{}" to "git fetch" when it + does not advertise any refs, but "git fetch" was not prepared to + see such an advertisement. When the other side disconnects without + giving any ref advertisement, we used to say "there may not be a + repository at that URL", but we may have seen other advertisement + like "shallow" and ".have" in which case we definitely know that a + repository is there. The code to detect this case has also been + updated. + + * Some codepaths in "git pack-objects" were not ready to use an + existing pack bitmap; now they are and as the result they have + become faster. + + * The codepath in "git fsck" to detect malformed tree objects has + been updated not to die but keep going after detecting them. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.10 +----------------- + +Unless otherwise noted, all the fixes since v2.9 in the maintenance +track are contained in this release (see the maintenance releases' +notes for details). + + * Clarify various ways to specify the "revision ranges" in the + documentation. + + * "diff-highlight" script (in contrib/) learned to work better with + "git log -p --graph" output. + + * The test framework left the number of tests and success/failure + count in the t/test-results directory, keyed by the name of the + test script plus the process ID. The latter however turned out not + to serve any useful purpose. The process ID part of the filename + has been removed. + + * Having a submodule whose ".git" repository is somehow corrupt + caused a few commands that recurse into submodules loop forever. + + * "git symbolic-ref -d HEAD" happily removes the symbolic ref, but + the resulting repository becomes an invalid one. Teach the command + to forbid removal of HEAD. + + * A test spawned a short-lived background process, which sometimes + prevented the test directory from getting removed at the end of the + script on some platforms. + + * Update a few tests that used to use GIT_CURL_VERBOSE to use the + newer GIT_TRACE_CURL. + + * "git pack-objects --include-tag" was taught that when we know that + we are sending an object C, we want a tag B that directly points at + C but also a tag A that points at the tag B. We used to miss the + intermediate tag B in some cases. + (merge b773dde jk/pack-tag-of-tag later to maint). + + * Update Japanese translation for "git-gui". + (merge 02748bc sy/git-gui-i18n-ja later to maint). + + * "git fetch http::/site/path" did not die correctly and segfaulted + instead. + (merge d63ed6e jk/fix-remote-curl-url-wo-proto later to maint). + + * "git commit-tree" stopped reading commit.gpgsign configuration + variable that was meant for Porcelain "git commit" in Git 2.9; we + forgot to update "git gui" to look at the configuration to match + this change. + (merge f14a310 js/git-gui-commit-gpgsign later to maint). + + * "git add --chmod=+x" added recently lacked documentation, which has + been corrected. + (merge 7ef7903 et/add-chmod-x later to maint). + + * "git log --cherry-pick" used to include merge commits as candidates + to be matched up with other commits, resulting a lot of wasted time. + The patch-id generation logic has been updated to ignore merges to + avoid the wastage. + (merge 7c81040 jk/patch-ids-no-merges later to maint). + + * The http transport (with curl-multi option, which is the default + these days) failed to remove curl-easy handle from a curlm session, + which led to unnecessary API failures. + (merge 2abc848 ew/http-do-not-forget-to-call-curl-multi-remove-handle later to maint). + + * There were numerous corner cases in which the configuration files + are read and used or not read at all depending on the directory a + Git command was run, leading to inconsistent behaviour. The code + to set-up repository access at the beginning of a Git process has + been updated to fix them. + (merge 4d0efa1 jk/setup-sequence-update later to maint). + + * "git diff -W" output needs to extend the context backward to + include the header line of the current function and also forward to + include the body of the entire current function up to the header + line of the next one. This process may have to merge to adjacent + hunks, but the code forgot to do so in some cases. + (merge 45d2f75 rs/xdiff-merge-overlapping-hunks-for-W-context later to maint). + + * Performance tests done via "t/perf" did not use the same set of + build configuration if the user relied on autoconf generated + configuration. + (merge cd5c281 ks/perf-build-with-autoconf later to maint). + + * "git format-patch --base=..." feature that was recently added + showed the base commit information after "-- " e-mail signature + line, which turned out to be inconvenient. The base information + has been moved above the signature line. + (merge 480871e jt/format-patch-base-info-above-sig later to maint). + + * More i18n. + (merge 43073f8 va/i18n later to maint). + + * Even when "git pull --rebase=preserve" (and the underlying "git + rebase --preserve") can complete without creating any new commit + (i.e. fast-forwards), it still insisted on having a usable ident + information (read: user.email is set correctly), which was less + than nice. As the underlying commands used inside "git rebase" + would fail with a more meaningful error message and advice text + when the bogus ident matters, this extra check was removed. + (merge 1e461c4 jk/rebase-i-drop-ident-check later to maint). + + * "git gc --aggressive" used to limit the delta-chain length to 250, + which is way too deep for gaining additional space savings and is + detrimental for runtime performance. The limit has been reduced to + 50. + (merge 07e7dbf jk/reduce-gc-aggressive-depth later to maint). + + * Documentation for individual configuration variables to control use + of color (like `color.grep`) said that their default value is + 'false', instead of saying their default is taken from `color.ui`. + When we updated the default value for color.ui from 'false' to + 'auto' quite a while ago, all of them broke. This has been + corrected. + (merge 14d16e2 mm/config-color-ui-default-to-auto later to maint). + + * The pretty-format specifier "%C(auto)" used by the "log" family of + commands to enable coloring of the output is taught to also issue a + color-reset sequence to the output. + (merge c99ad27 rs/c-auto-resets-attributes later to maint). + + * A shell script example in check-ref-format documentation has been + fixed. + (merge 92dece7 ep/doc-check-ref-format-example later to maint). + + * "git checkout <word>" does not follow the usual disambiguation + rules when the <word> can be both a rev and a path, to allow + checking out a branch 'foo' in a project that happens to have a + file 'foo' in the working tree without having to disambiguate. + This was poorly documented and the check was incorrect when the + command was run from a subdirectory. + (merge b829b94 nd/checkout-disambiguation later to maint). + + * Some codepaths in "git diff" used regexec(3) on a buffer that was + mmap(2)ed, which may not have a terminating NUL, leading to a read + beyond the end of the mapped region. This was fixed by introducing + a regexec_buf() helper that takes a <ptr,len> pair with REG_STARTEND + extension. + (merge b7d36ff js/regexec-buf later to maint). + + * The procedure to build Git on Mac OS X for Travis CI hardcoded the + internal directory structure we assumed HomeBrew uses, which was a + no-no. The procedure has been updated to ask HomeBrew things we + need to know to fix this. + (merge f86f49b ls/travis-homebrew-path-fix later to maint). + + * When "git rebase -i" is given a broken instruction, it told the + user to fix it with "--edit-todo", but didn't say what the step + after that was (i.e. "--continue"). + (merge 37875b4 rt/rebase-i-broken-insn-advise later to maint). + + * Documentation around tools to import from CVS was fairly outdated. + (merge 106b672 jk/doc-cvs-update later to maint). + + * "git clone --recurse-submodules" lost the progress eye-candy in + recent update, which has been corrected. + + * A low-level function verify_packfile() was meant to show errors + that were detected without dying itself, but under some conditions + it didn't and died instead, which has been fixed. + (merge a9445d859e jk/verify-packfile-gently later to maint). + + * When "git fetch" tries to find where the history of the repository + it runs in has diverged from what the other side has, it has a + mechanism to avoid digging too deep into irrelevant side branches. + This however did not work well over the "smart-http" transport due + to a design bug, which has been fixed. + (merge 06b3d386e0 jt/fetch-pack-in-vain-count-with-stateless later to maint). + + * In the codepath that comes up with the hostname to be used in an + e-mail when the user didn't tell us, we looked at ai_canonname + field in struct addrinfo without making sure it is not NULL first. + (merge c375a7efa3 jk/ident-ai-canonname-could-be-null later to maint). + + * "git worktree", even though it used the default_abbrev setting that + ought to be affected by core.abbrev configuration variable, ignored + the variable setting. The command has been taught to read the + default set of configuration variables to correct this. + (merge d49028e6e7 jc/worktree-config later to maint). + + * "git init" tried to record core.worktree in the repository's + 'config' file when GIT_WORK_TREE environment variable was set and + it was different from where GIT_DIR appears as ".git" at its top, + but the logic was faulty when .git is a "gitdir:" file that points + at the real place, causing trouble in working trees that are + managed by "git worktree". This has been corrected. + + * Codepaths that read from an on-disk loose object were too loose in + validating what they are reading is a proper object file and + sometimes read past the data they read from the disk, which has + been corrected. H/t to Gustavo Grieco for reporting. + (merge d21f842690 jc/verify-loose-object-header later to maint). + + * The original command line syntax for "git merge", which was "git + merge <msg> HEAD <parent>...", has been deprecated for quite some + time, and "git gui" was the last in-tree user of the syntax. This + is finally fixed, so that we can move forward with the deprecation. + (merge ff65e796f0 rs/git-gui-use-modern-git-merge-syntax later to maint). + + * An author name, that spelled a backslash-quoted double quote in the + human readable part "My \"double quoted\" name", was not unquoted + correctly while applying a patch from a piece of e-mail. + (merge f357e5de31 kd/mailinfo-quoted-string later to maint). + + * Doc update to clarify what "log -3 --reverse" does. + (merge 04be69478f pb/rev-list-reverse-with-count later to maint). + + * Almost everybody uses DEFAULT_ABBREV to refer to the default + setting for the abbreviation, but "git blame" peeked into + underlying variable bypassing the macro for no good reason. + (merge 5293284b4d jc/blame-abbrev later to maint). + + * The "graph" API used in "git log --graph" miscounted the number of + output columns consumed so far when drawing a padding line, which + has been fixed; this did not affect any existing code as nobody + tried to write anything after the padding on such a line, though. + (merge 1647793524 jk/graph-padding-fix later to maint). + + * The code that parses the format parameter of for-each-ref command + has seen a micro-optimization. + (merge e94ce1394e sg/ref-filter-parse-optim later to maint). + + * Other minor doc, test and build updates and code cleanups. + (merge e78d57e bw/pathspec-remove-unused-extern-decl later to maint). + (merge ce25e4c rs/checkout-some-states-are-const later to maint). + (merge a8342a4 rs/strbuf-remove-fix later to maint). + (merge b56aa5b rs/unpack-trees-reduce-file-scope-global later to maint). + (merge 5efc60c mr/vcs-svn-printf-ulong later to maint). + (merge a22ae75 rs/cocci later to maint). + (merge 45ccef87b3 rs/copy-array later to maint). + (merge 8201688ecd dt/mailinfo later to maint). diff --git a/Documentation/RelNotes/2.3.10.txt b/Documentation/RelNotes/2.3.10.txt index 9d425d8..20c2d2c 100644 --- a/Documentation/RelNotes/2.3.10.txt +++ b/Documentation/RelNotes/2.3.10.txt @@ -7,7 +7,7 @@ Fixes since v2.3.9 * xdiff code we use to generate diffs is not prepared to handle extremely large files. It uses "int" in many places, which can overflow if we have a very large number of lines or even bytes in - our input files, for example. Cap the input size to soemwhere + our input files, for example. Cap the input size to somewhere around 1GB for now. * Some protocols (like git-remote-ext) can execute arbitrary code diff --git a/Documentation/RelNotes/2.4.10.txt b/Documentation/RelNotes/2.4.10.txt index 8621199..702d8d4 100644 --- a/Documentation/RelNotes/2.4.10.txt +++ b/Documentation/RelNotes/2.4.10.txt @@ -7,7 +7,7 @@ Fixes since v2.4.9 * xdiff code we use to generate diffs is not prepared to handle extremely large files. It uses "int" in many places, which can overflow if we have a very large number of lines or even bytes in - our input files, for example. Cap the input size to soemwhere + our input files, for example. Cap the input size to somewhere around 1GB for now. * Some protocols (like git-remote-ext) can execute arbitrary code diff --git a/Documentation/RelNotes/2.4.11.txt b/Documentation/RelNotes/2.4.11.txt new file mode 100644 index 0000000..7233602 --- /dev/null +++ b/Documentation/RelNotes/2.4.11.txt @@ -0,0 +1,11 @@ +Git v2.4.11 Release Notes +========================= + +Fixes since v2.4.10 +------------------- + + * Bugfix patches were backported from the 'master' front to plug heap + corruption holes, to catch integer overflow in the computation of + pathname lengths, and to get rid of the name_path API. Both of + these would have resulted in writing over an under-allocated buffer + when formulating pathnames while tree traversal. diff --git a/Documentation/RelNotes/2.5.4.txt b/Documentation/RelNotes/2.5.4.txt index a5e8477..b8a2f93 100644 --- a/Documentation/RelNotes/2.5.4.txt +++ b/Documentation/RelNotes/2.5.4.txt @@ -7,7 +7,7 @@ Fixes since v2.5.4 * xdiff code we use to generate diffs is not prepared to handle extremely large files. It uses "int" in many places, which can overflow if we have a very large number of lines or even bytes in - our input files, for example. Cap the input size to soemwhere + our input files, for example. Cap the input size to somewhere around 1GB for now. * Some protocols (like git-remote-ext) can execute arbitrary code diff --git a/Documentation/RelNotes/2.5.5.txt b/Documentation/RelNotes/2.5.5.txt new file mode 100644 index 0000000..37eae9a --- /dev/null +++ b/Documentation/RelNotes/2.5.5.txt @@ -0,0 +1,11 @@ +Git v2.5.5 Release Notes +======================== + +Fixes since v2.5.4 +------------------ + + * Bugfix patches were backported from the 'master' front to plug heap + corruption holes, to catch integer overflow in the computation of + pathname lengths, and to get rid of the name_path API. Both of + these would have resulted in writing over an under-allocated buffer + when formulating pathnames while tree traversal. diff --git a/Documentation/RelNotes/2.6.1.txt b/Documentation/RelNotes/2.6.1.txt index 1e51363..f37ea89 100644 --- a/Documentation/RelNotes/2.6.1.txt +++ b/Documentation/RelNotes/2.6.1.txt @@ -7,7 +7,7 @@ Fixes since v2.6 * xdiff code we use to generate diffs is not prepared to handle extremely large files. It uses "int" in many places, which can overflow if we have a very large number of lines or even bytes in - our input files, for example. Cap the input size to soemwhere + our input files, for example. Cap the input size to somewhere around 1GB for now. * Some protocols (like git-remote-ext) can execute arbitrary code diff --git a/Documentation/RelNotes/2.6.6.txt b/Documentation/RelNotes/2.6.6.txt new file mode 100644 index 0000000..023ad85 --- /dev/null +++ b/Documentation/RelNotes/2.6.6.txt @@ -0,0 +1,11 @@ +Git v2.6.6 Release Notes +======================== + +Fixes since v2.6.5 +------------------ + + * Bugfix patches were backported from the 'master' front to plug heap + corruption holes, to catch integer overflow in the computation of + pathname lengths, and to get rid of the name_path API. Both of + these would have resulted in writing over an under-allocated buffer + when formulating pathnames while tree traversal. diff --git a/Documentation/RelNotes/2.7.3.txt b/Documentation/RelNotes/2.7.3.txt new file mode 100644 index 0000000..6adf038 --- /dev/null +++ b/Documentation/RelNotes/2.7.3.txt @@ -0,0 +1,62 @@ +Git v2.7.3 Release Notes +======================== + +Fixes since v2.7.2 +------------------ + + * Traditionally, the tests that try commands that work on the + contents in the working tree were named with "worktree" in their + filenames, but with the recent addition of "git worktree" + subcommand, whose tests are also named similarly, it has become + harder to tell them apart. The traditional tests have been renamed + to use "work-tree" instead in an attempt to differentiate them. + + * Many codepaths forget to check return value from git_config_set(); + the function is made to die() to make sure we do not proceed when + setting a configuration variable failed. + + * Handling of errors while writing into our internal asynchronous + process has been made more robust, which reduces flakiness in our + tests. + + * "git show 'HEAD:Foo[BAR]Baz'" did not interpret the argument as a + rev, i.e. the object named by the the pathname with wildcard + characters in a tree object. + + * "git rev-parse --git-common-dir" used in the worktree feature + misbehaved when run from a subdirectory. + + * The "v(iew)" subcommand of the interactive "git am -i" command was + broken in 2.6.0 timeframe when the command was rewritten in C. + + * "git merge-tree" used to mishandle "both sides added" conflict with + its own "create a fake ancestor file that has the common parts of + what both sides have added and do a 3-way merge" logic; this has + been updated to use the usual "3-way merge with an empty blob as + the fake common ancestor file" approach used in the rest of the + system. + + * The memory ownership rule of fill_textconv() API, which was a bit + tricky, has been documented a bit better. + + * The documentation did not clearly state that the 'simple' mode is + now the default for "git push" when push.default configuration is + not set. + + * Recent versions of GNU grep are pickier when their input contains + arbitrary binary data, which some of our tests uses. Rewrite the + tests to sidestep the problem. + + * A helper function "git submodule" uses since v2.7.0 to list the + modules that match the pathspec argument given to its subcommands + (e.g. "submodule add <repo> <path>") has been fixed. + + * "git config section.var value" to set a value in per-repository + configuration file failed when it was run outside any repository, + but didn't say the reason correctly. + + * The code to read the pack data using the offsets stored in the pack + idx file has been made more carefully check the validity of the + data in the idx. + +Also includes documentation and test updates. diff --git a/Documentation/RelNotes/2.7.4.txt b/Documentation/RelNotes/2.7.4.txt new file mode 100644 index 0000000..883ae89 --- /dev/null +++ b/Documentation/RelNotes/2.7.4.txt @@ -0,0 +1,11 @@ +Git v2.7.4 Release Notes +======================== + +Fixes since v2.7.3 +------------------ + + * Bugfix patches were backported from the 'master' front to plug heap + corruption holes, to catch integer overflow in the computation of + pathname lengths, and to get rid of the name_path API. Both of + these would have resulted in writing over an under-allocated buffer + when formulating pathnames while tree traversal. diff --git a/Documentation/RelNotes/2.8.0.txt b/Documentation/RelNotes/2.8.0.txt index dd540d0..2507971 100644 --- a/Documentation/RelNotes/2.8.0.txt +++ b/Documentation/RelNotes/2.8.0.txt @@ -16,7 +16,9 @@ UI, Workflows & Features the source repository has packed references for a long time, and nobody noticed nor complained about it. - * "branch --delete" has "branch -d" but "push --delete" does not. + * "push" learned that its "--delete" option can be shortened to + "-d", just like "branch --delete" and "branch -d" are the same + thing. * "git blame" learned to produce the progress eye-candy when it takes too much time before emitting the first line of the result. @@ -32,7 +34,7 @@ UI, Workflows & Features have a place to store the updated notes tree, iow, a ref). * "git grep" by default does not fall back to its "--no-index" - behaviour outside a directory under Git's control (otherwise the + behavior outside a directory under Git's control (otherwise the user may by mistake end up running a huge recursive search); with a new configuration (set in $HOME/.gitconfig--by definition this cannot be set in the config file per project), this safety can be @@ -53,7 +55,7 @@ UI, Workflows & Features * Many commands that read files that are expected to contain text that is generated (or can be edited) by the end user to control - their behaviour (e.g. "git grep -f <filename>") have been updated + their behavior (e.g. "git grep -f <filename>") have been updated to be more tolerant to lines that are terminated with CRLF (they used to treat such a line to contain payload that ends with CR, which is usually not what the users expect). @@ -98,14 +100,53 @@ UI, Workflows & Features variables, serving as a reminder for those who work on multiple projects and do not want to put these in their $HOME/.gitconfig. + * "git fetch" and friends that make network connections can now be + told to only use ipv4 (or ipv6). + + * Some authentication methods do not need username or password, but + libcurl needs some hint that it needs to perform authentication. + Supplying an empty username and password string is a valid way to + do so, but you can set the http.[<url>.]emptyAuth configuration + variable to achieve the same, if you find it cleaner. + + * You can now set http.[<url>.]pinnedpubkey to specify the pinned + public key when building with recent enough versions of libcURL. + + * The configuration system has been taught to phrase where it found a + bad configuration variable in a better way in its error messages. + "git config" learnt a new "--show-origin" option to indicate where + the values come from. + + * The "credential-cache" daemon process used to run in whatever + directory it happened to start in, but this made umount(2)ing the + filesystem that houses the repository harder; now the process + chdir()s to the directory that house its own socket on startup. + + * When "git submodule update" did not result in fetching the commit + object in the submodule that is referenced by the superproject, the + command learned to retry another fetch, specifically asking for + that commit that may not be connected to the refs it usually + fetches. + + * "git merge-recursive" learned "--no-renames" option to disable its + rename detection logic. + + * Across the transition at around Git version 2.0, the user used to + get a pretty loud warning when running "git push" without setting + push.default configuration variable. We no longer warn because the + transition was completed a long time ago. + + * README has been renamed to README.md and its contents got tweaked + slightly to make it easier on the eyes. + Performance, Internal Implementation, Development Support etc. * Add a framework to spawn a group of processes in parallel, and use it to run "git fetch --recurse-submodules" in parallel. - * A slight update to the Makefile to mark "phoney" targets - as such correctly. + * A slight update to the Makefile to mark ".PHONY" targets as such + correctly. * In-core storage of the reverse index for .pack files (which lets you go from a pack offset to an object name) has been streamlined. @@ -146,16 +187,72 @@ Performance, Internal Implementation, Development Support etc. with expectations that are not satisfiable on Git for Windows. * Some calls to strcpy(3) triggers a false warning from static - analysers that are less intelligent than humans, and reducing the + analyzers that are less intelligent than humans, and reducing the number of these false hits helps us notice real issues. A few - calls to strcpy(3) in test-path-utils that are already safe has - been rewritten to avoid false wanings. + calls to strcpy(3) in a couple of protrams that are already safe + has been rewritten to avoid false warnings. + + * The "name_path" API was an attempt to reduce the need to construct + the full path out of a series of path components while walking a + tree hierarchy, but over time made less efficient because the path + needs to be flattened, e.g. to be compared with another path that + is already flat. The API has been removed and its users have been + rewritten to simplify the overall code complexity. + + * Help those who debug http(s) part of the system. + (merge 0054045 sp/remote-curl-ssl-strerror later to maint). + + * The internal API to interact with "remote.*" configuration + variables has been streamlined. + + * The ref-filter's format-parsing code has been refactored, in + preparation for "branch --format" and friends. + + * Traditionally, the tests that try commands that work on the + contents in the working tree were named with "worktree" in their + filenames, but with the recent addition of "git worktree" + subcommand, whose tests are also named similarly, it has become + harder to tell them apart. The traditional tests have been renamed + to use "work-tree" instead in an attempt to differentiate them. + (merge 5549029 mg/work-tree-tests later to maint). + + * Many codepaths forget to check return value from git_config_set(); + the function is made to die() to make sure we do not proceed when + setting a configuration variable failed. + (merge 3d18064 ps/config-error later to maint). + + * Handling of errors while writing into our internal asynchronous + process has been made more robust, which reduces flakiness in our + tests. + (merge 43f3afc jk/epipe-in-async later to maint). + + * There is a new DEVELOPER knob that enables many compiler warning + options in the Makefile. + + * The way the test scripts configure the Apache web server has been + updated to work also for Apache 2.4 running on RedHat derived + distros. + + * Out of maintenance gcc on OSX 10.6 fails to compile the code in + 'master'; work it around by using clang by default on the platform. + + * The "name_path" API was an attempt to reduce the need to construct + the full path out of a series of path components while walking a + tree hierarchy, but over time made less efficient because the path + needs to be flattened, e.g. to be compared with another path that + is already flat, in many cases. The API has been removed and its + users have been rewritten to simplify the overall code complexity. + This incidentally also closes some heap-corruption holes. + + * Recent versions of GNU grep is pickier than before to decide if a + file is "binary" and refuse to give line-oriented hits when we + expect it to, unless explicitly told with "-a" option. As our + scripted Porcelains use sane_grep wrapper for line-oriented data, + even when the line may contain non-ASCII payload we took from + end-user data, use "grep -a" to implement sane_grep wrapper when + using an implementation of "grep" that takes the "-a" option. + - * Some calls to strcpy(3) triggers a false warning from static - analysers that are less intelligent than humans, and reducing the - number of these false hits helps us notice real issues. A few - calls to strcpy(3) in "git rerere" that are already safe has been - rewritten to avoid false wanings. Also contains various documentation updates and code clean-ups. @@ -171,39 +268,31 @@ notes for details). exporting GIT_WORK_TREE to point at the root of the working tree, interfering when they tried to use a different working tree without setting GIT_WORK_TREE environment themselves. - (merge df1e6ea nd/stop-setenv-work-tree later to maint). * The "exclude_list" structure has the usual "alloc, nr" pair of fields to be used by ALLOC_GROW(), but clear_exclude_list() forgot to reset 'alloc' to 0 when it cleared 'nr' to discard the managed array. - (merge 2653a8c nd/dir-exclude-cleanup later to maint). * Paths that have been told the index about with "add -N" are not quite yet in the index, but a few commands behaved as if they already are in a harmful way. - (merge 4d55200 nd/ita-cleanup later to maint). * "git send-email" was confused by escaped quotes stored in the alias files saved by "mutt", which has been corrected. - (merge 2c510f2 ew/send-email-mutt-alias-fix later to maint). - * A few unportable C construct have been spotted by clang compiler + * A few non-portable C construct have been spotted by clang compiler and have been fixed. - (merge a0df2e5 jk/clang-pedantic later to maint). * The documentation has been updated to hint the connection between the '--signoff' option and DCO. - (merge b2c150d dw/signoff-doc later to maint). * "git reflog" incorrectly assumed that all objects that used to be at the tip of a ref must be commits, which caused it to segfault. - (merge aecad37 dk/reflog-walk-with-non-commit later to maint). * The ignore mechanism saw a few regressions around untracked file listing and sparse checkout selection areas in 2.7.0; the change that is responsible for the regression has been reverted. - (merge 8c72236 nd/exclusion-regression-fix later to maint). * Some codepaths used fopen(3) when opening a fixed path in $GIT_DIR (e.g. COMMIT_EDITMSG) that is meant to be left after the command is @@ -211,7 +300,6 @@ notes for details). be shared with core.sharedRepository and the umask of the previous user is tighter. They have been made to work better by calling unlink(2) and retrying after fopen(3) fails with EPERM. - (merge ea56518 js/fopen-harder later to maint). * Asking gitweb for a nonexistent commit left a warning in the server log. @@ -219,100 +307,133 @@ notes for details). Somebody may want to follow this up with an additional test, perhaps? IIRC, we do test that no Perl warnings are given to the server log, so this should have been caught if our test coverage were good. - (merge a9eb90a ho/gitweb-squelch-undef-warning later to maint). * "git rebase", unlike all other callers of "gc --auto", did not ignore the exit code from "gc --auto". - (merge 8c24f5b jk/ok-to-fail-gc-auto-in-rebase later to maint). * Many codepaths that run "gc --auto" before exiting kept packfiles mapped and left the file descriptors to them open, which was not friendly to systems that cannot remove files that are open. They now close the packs before doing so. - (merge d562102 js/close-packs-before-gc later to maint). * A recent optimization to filter-branch in v2.7.0 introduced a regression when --prune-empty filter is used, which has been corrected. - (merge 1dc413e jk/filter-branch-no-index later to maint). * The description for SANITY prerequisite the test suite uses has been clarified both in the comment and in the implementation. - (merge 719c3da jk/sanity later to maint). * "git tag" started listing a tag "foo" as "tags/foo" when a branch named "foo" exists in the same repository; remove this unnecessary disambiguation, which is a regression introduced in v2.7.0. - (merge 0571979 jk/list-tag-2.7-regression later to maint). * The way "git svn" uses auth parameter was broken by Subversion 1.9.0 and later. - (merge 0b66415 ew/svn-1.9.0-auth later to maint). * The "split" subcommand of "git subtree" (in contrib/) incorrectly skipped merges when it shouldn't, which was corrected. - (merge 933cfeb dw/subtree-split-do-not-drop-merge later to maint). * A few options of "git diff" did not work well when the command was run from a subdirectory. - (merge a97262c nd/diff-with-path-params later to maint). * The command line completion learned a handful of additional options and command specific syntax. - (merge fa4b5e3 jk/completion-rebase later to maint). - (merge f7c2e1a pw/completion-show-branch later to maint). - (merge d7d4ca8 pw/completion-stash later to maint). - (merge e6414b4 tb/complete-word-diff-regex later to maint). * dirname() emulation has been added, as Msys2 lacks it. - (merge e7d5ce8 js/dirname-basename later to maint). * The underlying machinery used by "ls-files -o" and other commands - have been taught not to create empty submodule ref cache for a + has been taught not to create empty submodule ref cache for a directory that is not a submodule. This removes a ton of wasted CPU cycles. - (merge a2d5156 jk/ref-cache-non-repository-optim later to maint). * "git worktree" had a broken code that attempted to auto-fix possible inconsistency that results from end-users moving a worktree to different places without telling Git (the original - repository needs to maintain backpointers to its worktrees, but - "mv" run by end-users who are not familiar with that fact will - obviously not adjust them), which actually made things worse - when triggered. - (merge 618244e nd/do-not-move-worktree-manually later to maint). + repository needs to maintain back-pointers to its worktrees, + but "mv" run by end-users who are not familiar with that fact + will obviously not adjust them), which actually made things + worse when triggered. * The low-level merge machinery has been taught to use CRLF line termination when inserting conflict markers to merged contents that are themselves CRLF line-terminated. - (merge 15980de js/xmerge-marker-eol later to maint). * "git push --force-with-lease" has been taught to report if the push needed to force (or fast-forwarded). - (merge b2e93f8 aw/push-force-with-lease-reporting later to maint). * The emulated "yes" command used in our test scripts has been tweaked not to spend too much time generating unnecessary output that is not used, to help those who test on Windows where it would not stop until it fills the pipe buffer due to lack of SIGPIPE. - (merge 6129c93 js/test-lib-windows-emulated-yes later to maint). * The documentation for "git clean" has been corrected; it mentioned that .git/modules/* are removed by giving two "-f", which has never been the case. - (merge 31e3c2d mm/clean-doc-fix later to maint). * The vimdiff backend for "git mergetool" has been tweaked to arrange and number buffers in the order that would match the expectation of majority of people who read left to right, then top down and assign buffers 1 2 3 4 "mentally" to local base remote merge windows based on that order. - (merge 2300328 dw/mergetool-vim-window-shuffle later to maint). + + * "git show 'HEAD:Foo[BAR]Baz'" did not interpret the argument as a + rev, i.e. the object named by the the pathname with wildcard + characters in a tree object. + (merge aac4fac nd/dwim-wildcards-as-pathspecs later to maint). + + * "git rev-parse --git-common-dir" used in the worktree feature + misbehaved when run from a subdirectory. + (merge 17f1365 nd/git-common-dir-fix later to maint). + + * "git worktree add -B <branchname>" did not work. + + * The "v(iew)" subcommand of the interactive "git am -i" command was + broken in 2.6.0 timeframe when the command was rewritten in C. + (merge 708b8cc jc/am-i-v-fix later to maint). + + * "git merge-tree" used to mishandle "both sides added" conflict with + its own "create a fake ancestor file that has the common parts of + what both sides have added and do a 3-way merge" logic; this has + been updated to use the usual "3-way merge with an empty blob as + the fake common ancestor file" approach used in the rest of the + system. + (merge 907681e jk/no-diff-emit-common later to maint). + + * The memory ownership rule of fill_textconv() API, which was a bit + tricky, has been documented a bit better. + (merge a64e6a4 jk/more-comments-on-textconv later to maint). + + * Update various codepaths to avoid manually-counted malloc(). + (merge 08c95df jk/tighten-alloc later to maint). + + * The documentation did not clearly state that the 'simple' mode is + now the default for "git push" when push.default configuration is + not set. + (merge f6b1fb3 mm/push-simple-doc later to maint). + + * Recent versions of GNU grep are pickier when their input contains + arbitrary binary data, which some of our tests uses. Rewrite the + tests to sidestep the problem. + (merge 3b1442d jk/grep-binary-workaround-in-test later to maint). + + * A helper function "git submodule" uses since v2.7.0 to list the + modules that match the pathspec argument given to its subcommands + (e.g. "submodule add <repo> <path>") has been fixed. + (merge 2b56bb7 sb/submodule-module-list-fix later to maint). + + * "git config section.var value" to set a value in per-repository + configuration file failed when it was run outside any repository, + but didn't say the reason correctly. + (merge 638fa62 js/config-set-in-non-repository later to maint). + + * The code to read the pack data using the offsets stored in the pack + idx file has been made more carefully check the validity of the + data in the idx. + (merge 7465feb jk/pack-idx-corruption-safety later to maint). * Other minor clean-ups and documentation updates - (merge 99487cf ss/user-manual later to maint). - (merge e914ef0 ew/for-each-ref-doc later to maint). - (merge 36fc7d8 sg/t6050-failing-editor-test-fix later to maint). - (merge 60253a6 ss/clone-depth-single-doc later to maint). - (merge bd02e97 lv/add-doc-working-tree later to maint). - (merge f562d7d ah/stripspace-optstring later to maint). + (merge f459823 ak/extract-argv0-last-dir-sep later to maint). + (merge 63ca1c0 ak/git-strip-extension-from-dashed-command later to maint). + (merge 4867f11 ps/plug-xdl-merge-leak later to maint). + (merge 4938686 dt/initial-ref-xn-commit-doc later to maint). + (merge 9537f21 ma/update-hooks-sample-typofix later to maint). diff --git a/Documentation/RelNotes/2.8.1.txt b/Documentation/RelNotes/2.8.1.txt new file mode 100644 index 0000000..ef6d80b --- /dev/null +++ b/Documentation/RelNotes/2.8.1.txt @@ -0,0 +1,9 @@ +Git v2.8.1 Release Notes +======================== + +Fixes since v2.8 +---------------- + + * "make rpmbuild" target was broken as its input, git.spec.in, was + not updated to match a file it describes that has been renamed + recently. This has been fixed. diff --git a/Documentation/RelNotes/2.8.2.txt b/Documentation/RelNotes/2.8.2.txt new file mode 100644 index 0000000..447b193 --- /dev/null +++ b/Documentation/RelNotes/2.8.2.txt @@ -0,0 +1,70 @@ +Git v2.8.2 Release Notes +======================== + +Fixes since v2.8.1 +------------------ + + * The embedded args argv-array in the child process is used to build + the command line to run pack-objects instead of using a separate + array of strings. + + * Bunch of tests on "git clone" has been renumbered for better + organization. + + * The tests that involve running httpd leaked the system-wide + configuration in /etc/gitconfig to the tested environment. + + * "index-pack --keep=<msg>" was broken since v2.1.0 timeframe. + + * "git config --get-urlmatch", unlike other variants of the "git + config --get" family, did not signal error with its exit status + when there was no matching configuration. + + * The "--local-env-vars" and "--resolve-git-dir" options of "git + rev-parse" failed to work outside a repository when the command's + option parsing was rewritten in 1.8.5 era. + + * Fetching of history by naming a commit object name directly didn't + work across remote-curl transport. + + * A small memory leak in an error codepath has been plugged in xdiff + code. + + * strbuf_getwholeline() did not NUL-terminate the buffer on certain + corner cases in its error codepath. + + * The startup_info data, which records if we are working inside a + repository (among other things), are now uniformly available to Git + subcommand implementations, and Git avoids attempting to touch + references when we are not in a repository. + + * "git mergetool" did not work well with conflicts that both sides + deleted. + + * "git send-email" had trouble parsing alias file in mailrc format + when lines in it had trailing whitespaces on them. + + * When "git merge --squash" stopped due to conflict, the concluding + "git commit" failed to read in the SQUASH_MSG that shows the log + messages from all the squashed commits. + + * "git merge FETCH_HEAD" dereferenced NULL pointer when merging + nothing into an unborn history (which is arguably unusual usage, + which perhaps was the reason why nobody noticed it). + + * Build updates for MSVC. + + * "git diff -M" used to work better when two originally identical + files A and B got renamed to X/A and X/B by pairing A to X/A and B + to X/B, but this was broken in the 2.0 timeframe. + + * "git send-pack --all <there>" was broken when its command line + option parsing was written in the 2.6 timeframe. + + * When running "git blame $path" with unnormalized data in the index + for the path, the data in the working tree was blamed, even though + "git add" would not have changed what is already in the index, due + to "safe crlf" that disables the line-end conversion. It has been + corrected. + +Also contains minor documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.8.3.txt b/Documentation/RelNotes/2.8.3.txt new file mode 100644 index 0000000..fedd996 --- /dev/null +++ b/Documentation/RelNotes/2.8.3.txt @@ -0,0 +1,101 @@ +Git v2.8.3 Release Notes +======================== + +Fixes since v2.8.2 +------------------ + + * "git send-email" now uses a more readable timestamps when + formulating a message ID. + + * The repository set-up sequence has been streamlined (the biggest + change is that there is no longer git_config_early()), so that we + do not attempt to look into refs/* when we know we do not have a + Git repository. + + * When "git worktree" feature is in use, "git branch -d" allowed + deletion of a branch that is checked out in another worktree + + * When "git worktree" feature is in use, "git branch -m" renamed a + branch that is checked out in another worktree without adjusting + the HEAD symbolic ref for the worktree. + + * "git format-patch --help" showed `-s` and `--no-patch` as if these + are valid options to the command. We already hide `--patch` option + from the documentation, because format-patch is about showing the + diff, and the documentation now hides these options as well. + + * A change back in version 2.7 to "git branch" broke display of a + symbolic ref in a non-standard place in the refs/ hierarchy (we + expect symbolic refs to appear in refs/remotes/*/HEAD to point at + the primary branch the remote has, and as .git/HEAD to point at the + branch we locally checked out). + + * A partial rewrite of "git submodule" in the 2.7 timeframe changed + the way the gitdir: pointer in the submodules point at the real + repository location to use absolute paths by accident. This has + been corrected. + + * "git commit" misbehaved in a few minor ways when an empty message + is given via -m '', all of which has been corrected. + + * Support for CRAM-MD5 authentication method in "git imap-send" did + not work well. + + * The socks5:// proxy support added back in 2.6.4 days was not aware + that socks5h:// proxies behave differently. + + * "git config" had a codepath that tried to pass a NULL to + printf("%s"), which nobody seems to have noticed. + + * On Cygwin, object creation uses the "create a temporary and then + rename it to the final name" pattern, not "create a temporary, + hardlink it to the final name and then unlink the temporary" + pattern. + + This is necessary to use Git on Windows shared directories, and is + already enabled for the MinGW and plain Windows builds. It also + has been used in Cygwin packaged versions of Git for quite a while. + See http://thread.gmane.org/gmane.comp.version-control.git/291853 + and http://thread.gmane.org/gmane.comp.version-control.git/275680. + + * "git replace -e" did not honour "core.editor" configuration. + + * Upcoming OpenSSL 1.1.0 will break compilation b updating a few APIs + we use in imap-send, which has been adjusted for the change. + + * "git submodule" reports the paths of submodules the command + recurses into, but this was incorrect when the command was not run + from the root level of the superproject. + + * The test scripts for "git p4" (but not "git p4" implementation + itself) has been updated so that they would work even on a system + where the installed version of Python is python 3. + + * The "user.useConfigOnly" configuration variable makes it an error + if users do not explicitly set user.name and user.email. However, + its check was not done early enough and allowed another error to + trigger, reporting that the default value we guessed from the + system setting was unusable. This was a suboptimal end-user + experience as we want the users to set user.name/user.email without + relying on the auto-detection at all. + + * "git mv old new" did not adjust the path for a submodule that lives + as a subdirectory inside old/ directory correctly. + + * "git push" from a corrupt repository that attempts to push a large + number of refs deadlocked; the thread to relay rejection notices + for these ref updates blocked on writing them to the main thread, + after the main thread at the receiving end notices that the push + failed and decides not to read these notices and return a failure. + + * A question by "git send-email" to ask the identity of the sender + has been updated. + + * Recent update to Git LFS broke "git p4" by changing the output from + its "lfs pointer" subcommand. + + * Some multi-byte encoding can have a backslash byte as a later part + of one letter, which would confuse "highlight" filter used in + gitweb. + +Also contains minor documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.8.4.txt b/Documentation/RelNotes/2.8.4.txt new file mode 100644 index 0000000..f4e2552 --- /dev/null +++ b/Documentation/RelNotes/2.8.4.txt @@ -0,0 +1,69 @@ +Git v2.8.4 Release Notes +======================== + +Fixes since v2.8.3 +------------------ + + * Documentation for "git merge --verify-signatures" has been updated + to clarify that the signature of only the commit at the tip is + verified. Also the phrasing used for signature and key validity is + adjusted to align with that used by OpenPGP. + + * On Windows, .git and optionally any files whose name starts with a + dot are now marked as hidden, with a core.hideDotFiles knob to + customize this behaviour. + + * Portability enhancement for "rebase -i" to help platforms whose + shell does not like "for i in <empty>" (which is not POSIX-kosher). + + * "git fsck" learned to catch NUL byte in a commit object as + potential error and warn. + + * CI test was taught to build documentation pages. + + * Many 'linkgit:<git documentation page>' references were broken, + which are all fixed with this. + + * "git describe --contains" often made a hard-to-justify choice of + tag to give name to a given commit, because it tried to come up + with a name with smallest number of hops from a tag, causing an old + commit whose close descendant that is recently tagged were not + described with respect to an old tag but with a newer tag. It did + not help that its computation of "hop" count was further tweaked to + penalize being on a side branch of a merge. The logic has been + updated to favor using the tag with the oldest tagger date, which + is a lot easier to explain to the end users: "We describe a commit + in terms of the (chronologically) oldest tag that contains the + commit." + + * Running tests with '-x' option to trace the individual command + executions is a useful way to debug test scripts, but some tests + that capture the standard error stream and check what the command + said can be broken with the trace output mixed in. When running + our tests under "bash", however, we can redirect the trace output + to another file descriptor to keep the standard error of programs + being tested intact. + + * "http.cookieFile" configuration variable clearly wants a pathname, + but we forgot to treat it as such by e.g. applying tilde expansion. + + * When de-initialising all submodules, "git submodule deinit" gave a + faulty recommendation to use "git submodule deinit .", which would + result in a strange error message in a pathological corner case. + This has been corrected to suggest "submodule deinit --all" instead. + + * Many commands normalize command line arguments from NFD to NFC + variant of UTF-8 on OSX, but commands in the "diff" family did + not, causing "git diff $path" to complain that no such path is + known to Git. They have been taught to do the normalization. + + * A couple of bugs around core.autocrlf have been fixed. + + * "git difftool" learned to handle unmerged paths correctly in + dir-diff mode. + + * The "are we talking with TTY, doing an interactive session?" + detection has been updated to work better for "Git for Windows". + + +Also contains other minor documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.9.0.txt b/Documentation/RelNotes/2.9.0.txt new file mode 100644 index 0000000..b61d367 --- /dev/null +++ b/Documentation/RelNotes/2.9.0.txt @@ -0,0 +1,512 @@ +Git 2.9 Release Notes +===================== + +Backward compatibility notes +---------------------------- + +The end-user facing Porcelain level commands in the "git diff" and +"git log" family by default enable the rename detection; you can still +use "diff.renames" configuration variable to disable this. + +Merging two branches that have no common ancestor with "git merge" is +by default forbidden now to prevent creating such an unusual merge by +mistake. + +The output formats of "git log" that indents the commit log message by +4 spaces now expands HT in the log message by default. You can use +the "--no-expand-tabs" option to disable this. + +"git commit-tree" plumbing command required the user to always sign +its result when the user sets the commit.gpgsign configuration +variable, which was an ancient mistake, which this release corrects. +A script that drives commit-tree, if it relies on this mistake, now +needs to read commit.gpgsign and pass the -S option as necessary. + + +Updates since v2.8 +------------------ + +UI, Workflows & Features + + * Comes with git-multimail 1.3.1 (in contrib/). + + * The end-user facing commands like "git diff" and "git log" + now enable the rename detection by default. + + * The credential.helper configuration variable is cumulative and + there is no good way to override it from the command line. As + a special case, giving an empty string as its value now serves + as the signal to clear the values specified in various files. + + * A new "interactive.diffFilter" configuration can be used to + customize the diff shown in "git add -i" sessions. + + * "git p4" now allows P4 author names to be mapped to Git author + names. + + * "git rebase -x" can be used without passing "-i" option. + + * "git -c credential.<var>=<value> submodule" can now be used to + propagate configuration variables related to credential helper + down to the submodules. + + * "git tag" can create an annotated tag without explicitly given an + "-a" (or "-s") option (i.e. when a tag message is given). A new + configuration variable, tag.forceSignAnnotated, can be used to tell + the command to create signed tag in such a situation. + + * "git merge" used to allow merging two branches that have no common + base by default, which led to a brand new history of an existing + project created and then get pulled by an unsuspecting maintainer, + which allowed an unnecessary parallel history merged into the + existing project. The command has been taught not to allow this by + default, with an escape hatch "--allow-unrelated-histories" option + to be used in a rare event that merges histories of two projects + that started their lives independently. + + * "git pull" has been taught to pass the "--allow-unrelated-histories" + option to underlying "git merge". + + * "git apply -v" learned to report paths in the patch that were + skipped via --include/--exclude mechanism or being outside the + current working directory. + + * Shell completion (in contrib/) updates. + + * The commit object name reported when "rebase -i" stops has been + shortened. + + * "git worktree add" can be given "--no-checkout" option to only + create an empty worktree without checking out the files. + + * "git mergetools" learned to drive ExamDiff. + + * "git pull --rebase" learned "--[no-]autostash" option, so that + the rebase.autostash configuration variable set to true can be + overridden from the command line. + + * When "git log" shows the log message indented by 4-spaces, the + remainder of a line after a HT does not align in the way the author + originally intended. The command now expands tabs by default to help + such a case, and allows the users to override it with a new option, + "--no-expand-tabs". + + * "git send-email" now uses a more readable timestamps when + formulating a message ID. + + * "git rerere" can encounter two or more files with the same conflict + signature that have to be resolved in different ways, but there was + no way to record these separate resolutions. + + * "git p4" learned to record P4 jobs in Git commit that imports from + the history in Perforce. + + * "git describe --contains" often made a hard-to-justify choice of + tag to name a given commit, because it tried to come up + with a name with smallest number of hops from a tag, causing an old + commit whose close descendant that is recently tagged were not + described with respect to an old tag but with a newer tag. It did + not help that its computation of "hop" count was further tweaked to + penalize being on a side branch of a merge. The logic has been + updated to favor using the tag with the oldest tagger date, which + is a lot easier to explain to the end users: "We describe a commit + in terms of the (chronologically) oldest tag that contains the + commit." + + * "git clone" learned the "--shallow-submodules" option. + + * HTTP transport clients learned to throw extra HTTP headers at the + server, specified via http.extraHeader configuration variable. + + * The "--compaction-heuristic" option to "git diff" family of + commands enables a heuristic to make the patch output more readable + by using a blank line as a strong hint that the contents before and + after it belong to logically separate units. It is still + experimental. + + * A new configuration variable core.hooksPath allows customizing + where the hook directory is. + + * An earlier addition of "sanitize_submodule_env" with 14111fc4 (git: + submodule honor -c credential.* from command line, 2016-02-29) + turned out to be a convoluted no-op; implement what it wanted to do + correctly, and stop filtering settings given via "git -c var=val". + + * "git commit --dry-run" reported "No, no, you cannot commit." in one + case where "git commit" would have allowed you to commit, and this + improves it a little bit ("git commit --dry-run --short" still does + not give you the correct answer, for example). This is a stop-gap + measure in that "commit --short --dry-run" still gives an incorrect + result. + + * The experimental "multiple worktree" feature gains more safety to + forbid operations on a branch that is checked out or being actively + worked on elsewhere, by noticing that e.g. it is being rebased. + + * "git format-patch" learned a new "--base" option to record what + (public, well-known) commit the original series was built on in + its output. + + * "git commit" learned to pay attention to the "commit.verbose" + configuration variable and act as if the "--verbose" option + was given from the command line. + + * Updated documentation gives hints to GMail users with two-factor + auth enabled that they need app-specific-password when using + "git send-email". + + * The manpage output of our documentation did not render well in + terminal; typeset literals in bold by default to make them stand + out more. + + * The mark-up in the top-level README.md file has been updated to + typeset CLI command names differently from the body text. + + +Performance, Internal Implementation, Development Support etc. + + * The embedded args argv-array in the child process is used to build + the command line to run pack-objects instead of using a separate + array of strings. + + * A test for tags has been restructured so that more parts of it can + easily be run on a platform without a working GnuPG. + + * The startup_info data, which records if we are working inside a + repository (among other things), are now uniformly available to Git + subcommand implementations, and Git avoids attempting to touch + references when we are not in a repository. + + * The command line argument parser for "receive-pack" has been + rewritten to use parse-options. + + * A major part of "git submodule update" has been ported to C to take + advantage of the recently added framework to run download tasks in + parallel. Other updates to "git submodule" that move pieces of + logic to C continues. + + * Rename bunch of tests on "git clone" for better organization. + + * The tests that involve running httpd leaked the system-wide + configuration in /etc/gitconfig to the tested environment. + + * Build updates for MSVC. + + * The repository set-up sequence has been streamlined (the biggest + change is that there is no longer git_config_early()), so that we + do not attempt to look into refs/* when we know we do not have a + Git repository. + + * Code restructuring around the "refs" API to prepare for pluggable + refs backends. + + * Sources to many test helper binaries and the generated helpers + have been moved to t/helper/ subdirectory to reduce clutter at the + top level of the tree. + + * Unify internal logic between "git tag -v" and "git verify-tag" + commands by making one directly call into the other. + + * "merge-recursive" strategy incorrectly checked if a path that is + involved in its internal merge exists in the working tree. + + * The test scripts for "git p4" (but not "git p4" implementation + itself) has been updated so that they would work even on a system + where the installed version of Python is python 3. + + * As nobody maintains our in-tree git.spec.in and distros use their + own spec file, we stopped pretending that we support "make rpm". + + * Move from "unsigned char[20]" to "struct object_id" continues. + + * The code for warning_errno/die_errno has been refactored and a new + error_errno() reporting helper is introduced. + (merge 1da045f nd/error-errno later to maint). + + * Running tests with '-x' option to trace the individual command + executions is a useful way to debug test scripts, but some tests + that capture the standard error stream and check what the command + said can be broken with the trace output mixed in. When running + our tests under "bash", however, we can redirect the trace output + to another file descriptor to keep the standard error of programs + being tested intact. + + * t0040 had too many unnecessary repetitions in its test data. Teach + test-parse-options program so that a caller can tell what it + expects in its output, so that these repetitions can be cleaned up. + + * Add perf test for "rebase -i". + + * Common mistakes when writing gitlink: in our documentation are + found by "make check-docs". + + * t9xxx series has been updated primarily for readability, while + fixing small bugs in it. A few scripted Porcelain commands have + also been updated to fix possible bugs around their use of + "test -z" and "test -n". + + * CI test was taught to run git-svn tests. + + * "git cat-file --batch-all" has been sped up, by taking advantage + of the fact that it does not have to read a list of objects, in two + ways. + + * test updates to make it more readable and maintainable. + (merge e6273f4 es/t1500-modernize later to maint). + + * "make DEVELOPER=1" worked as expected; setting DEVELOPER=1 in + config.mak didn't. + (merge 51dd3e8 mm/makefile-developer-can-be-in-config-mak later to maint). + + * The way how "submodule--helper list" signals unmatch error to its + callers has been updated. + + * A bash-ism "local" has been removed from "git submodule" scripted + Porcelain. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.8 +---------------- + +Unless otherwise noted, all the fixes since v2.8 in the maintenance +track are contained in this release (see the maintenance releases' +notes for details). + + * "git config --get-urlmatch", unlike other variants of the "git + config --get" family, did not signal error with its exit status + when there was no matching configuration. + + * The "--local-env-vars" and "--resolve-git-dir" options of "git + rev-parse" failed to work outside a repository when the command's + option parsing was rewritten in 1.8.5 era. + + * "git index-pack --keep[=<msg>] pack-$name.pack" simply did not work. + + * Fetching of history by naming a commit object name directly didn't + work across remote-curl transport. + + * A small memory leak in an error codepath has been plugged in xdiff + code. + + * strbuf_getwholeline() did not NUL-terminate the buffer on certain + corner cases in its error codepath. + + * "git mergetool" did not work well with conflicts that both sides + deleted. + + * "git send-email" had trouble parsing alias file in mailrc format + when lines in it had trailing whitespaces on them. + + * When "git merge --squash" stopped due to conflict, the concluding + "git commit" failed to read in the SQUASH_MSG that shows the log + messages from all the squashed commits. + + * "git merge FETCH_HEAD" dereferenced NULL pointer when merging + nothing into an unborn history (which is arguably unusual usage, + which perhaps was the reason why nobody noticed it). + + * When "git worktree" feature is in use, "git branch -d" allowed + deletion of a branch that is checked out in another worktree, + which was wrong. + + * When "git worktree" feature is in use, "git branch -m" renamed a + branch that is checked out in another worktree without adjusting + the HEAD symbolic ref for the worktree. + + * "git diff -M" used to work better when two originally identical + files A and B got renamed to X/A and X/B by pairing A to X/A and B + to X/B, but this was broken in the 2.0 timeframe. + + * "git send-pack --all <there>" was broken when its command line + option parsing was written in the 2.6 timeframe. + + * "git format-patch --help" showed `-s` and `--no-patch` as if these + are valid options to the command. We already hide `--patch` option + from the documentation, because format-patch is about showing the + diff, and the documentation now hides these options as well. + + * When running "git blame $path" with unnormalized data in the index + for the path, the data in the working tree was blamed, even though + "git add" would not have changed what is already in the index, due + to "safe crlf" that disables the line-end conversion. It has been + corrected. + + * A change back in version 2.7 to "git branch" broke display of a + symbolic ref in a non-standard place in the refs/ hierarchy (we + expect symbolic refs to appear in refs/remotes/*/HEAD to point at + the primary branch the remote has, and as .git/HEAD to point at the + branch we locally checked out). + + * A partial rewrite of "git submodule" in the 2.7 timeframe changed + the way the gitdir: pointer in the submodules point at the real + repository location to use absolute paths by accident. This has + been corrected. + + * "git commit" misbehaved in a few minor ways when an empty message + is given via -m '', all of which has been corrected. + + * Support for CRAM-MD5 authentication method in "git imap-send" did + not work well. + + * Upcoming OpenSSL 1.1.0 will break compilation by updating a few API + elements we use in imap-send, which has been adjusted for the change. + + * The socks5:// proxy support added back in 2.6.4 days was not aware + that socks5h:// proxies behave differently from socks5:// proxies. + + * "git config" had a codepath that tried to pass a NULL to + printf("%s"), which nobody seems to have noticed. + + * On Cygwin, object creation uses the "create a temporary and then + rename it to the final name" pattern, not "create a temporary, + hardlink it to the final name and then unlink the temporary" + pattern. + + This is necessary to use Git on Windows shared directories, and is + already enabled for the MinGW and plain Windows builds. It also + has been used in Cygwin packaged versions of Git for quite a while. + See http://thread.gmane.org/gmane.comp.version-control.git/291853 + + * "merge-octopus" strategy did not ensure that the index is clean + when merge begins. + + * When "git merge" notices that the merge can be resolved purely at + the tree level (without having to merge blobs) and the resulting + tree happens to already exist in the object store, it forgot to + update the index, which left an inconsistent state that would + break later operations. + + * "git submodule" reports the paths of submodules the command + recurses into, but these paths were incorrectly reported when + the command was not run from the root level of the superproject. + + * The "user.useConfigOnly" configuration variable makes it an error + if users do not explicitly set user.name and user.email. However, + its check was not done early enough and allowed another error to + trigger, reporting that the default value we guessed from the + system setting was unusable. This was a suboptimal end-user + experience as we want the users to set user.name/user.email without + relying on the auto-detection at all. + + * "git mv old new" did not adjust the path for a submodule that lives + as a subdirectory inside old/ directory correctly. + + * "git replace -e" did not honour "core.editor" configuration. + + * "git push" from a corrupt repository that attempts to push a large + number of refs deadlocked; the thread to relay rejection notices + for these ref updates blocked on writing them to the main thread, + after the main thread at the receiving end notices that the push + failed and decides not to read these notices and return a failure. + + * mmap emulation on Windows has been optimized and work better without + consuming paging store when not needed. + + * A question by "git send-email" to ask the identity of the sender + has been updated. + + * UI consistency improvements for "git mergetool". + + * "git rebase -m" could be asked to rebase an entire branch starting + from the root, but failed by assuming that there always is a parent + commit to the first commit on the branch. + + * Fix a broken "p4 lfs" test. + + * Recent update to Git LFS broke "git p4" by changing the output from + its "lfs pointer" subcommand. + + * "git fetch" test t5510 was flaky while running a (forced) automagic + garbage collection. + + * Documentation updates to help contributors setting up Travis CI + test for their patches. + + * Some multi-byte encoding can have a backslash byte as a later part + of one letter, which would confuse "highlight" filter used in + gitweb. + + * "git commit-tree" plumbing command required the user to always sign + its result when the user sets the commit.gpgsign configuration + variable, which was an ancient mistake. Rework "git rebase" that + relied on this mistake so that it reads commit.gpgsign and pass (or + not pass) the -S option to "git commit-tree" to keep the end-user + expectation the same, while teaching "git commit-tree" to ignore + the configuration variable. This will stop requiring the users to + sign commit objects used internally as an implementation detail of + "git stash". + + * "http.cookieFile" configuration variable clearly wants a pathname, + but we forgot to treat it as such by e.g. applying tilde expansion. + + * Consolidate description of tilde-expansion that is done to + configuration variables that take pathname to a single place. + + * Correct faulty recommendation to use "git submodule deinit ." when + de-initialising all submodules, which would result in a strange + error message in a pathological corner case. + + * Many 'linkgit:<git documentation page>' references were broken, + which are all fixed with this. + + * "git rerere" can get confused by conflict markers deliberately left + by the inner merge step, because they are indistinguishable from + the real conflict markers left by the outermost merge which are + what the end user and "rerere" need to look at. This was fixed by + making the conflict markers left by the inner merges a bit longer. + (merge 0f9fd5c jc/ll-merge-internal later to maint). + + * CI test was taught to build documentation pages. + + * "git fsck" learned to catch NUL byte in a commit object as + potential error and warn. + + * Portability enhancement for "rebase -i" to help platforms whose + shell does not like "for i in <empty>" (which is not POSIX-kosher). + + * On Windows, .git and optionally any files whose name starts with a + dot are now marked as hidden, with a core.hideDotFiles knob to + customize this behaviour. + + * Documentation for "git merge --verify-signatures" has been updated + to clarify that the signature of only the commit at the tip is + verified. Also the phrasing used for signature and key validity is + adjusted to align with that used by OpenPGP. + + * A couple of bugs around core.autocrlf have been fixed. + + * Many commands normalize command line arguments from NFD to NFC + variant of UTF-8 on OSX, but commands in the "diff" family did + not, causing "git diff $path" to complain that no such path is + known to Git. They have been taught to do the normalization. + + * "git difftool" learned to handle unmerged paths correctly in + dir-diff mode. + + * The "are we talking with TTY, doing an interactive session?" + detection has been updated to work better for "Git for Windows". + + * We forgot to add "git log --decorate=auto" to documentation when we + added the feature back in v2.1.0 timeframe. + (merge 462cbb4 rj/log-decorate-auto later to maint). + + * "git fast-import --export-marks" would overwrite the existing marks + file even when it makes a dump from its custom die routine. + Prevent it from doing so when we have an import-marks file but + haven't finished reading it. + (merge f4beed6 fc/fast-import-broken-marks-file later to maint). + + * "git rebase -i", after it fails to auto-resolve the conflict, had + an unnecessary call to "git rerere" from its very early days, which + was spotted recently; the call has been removed. + (merge 7063693 js/rebase-i-dedup-call-to-rerere later to maint). + + * Other minor clean-ups and documentation updates + (merge cd82b7a pa/cherry-pick-doc-typo later to maint). + (merge 2bb73ae rs/patch-id-use-skip-prefix later to maint). + (merge aa20cbc rs/apply-name-terminate later to maint). + (merge fe17fc0 jc/t2300-setup later to maint). + (merge e256eec jk/shell-portability later to maint). diff --git a/Documentation/RelNotes/2.9.1.txt b/Documentation/RelNotes/2.9.1.txt new file mode 100644 index 0000000..3383940 --- /dev/null +++ b/Documentation/RelNotes/2.9.1.txt @@ -0,0 +1,117 @@ +Git v2.9.1 Release Notes +======================== + +Fixes since v2.9 +---------------- + + * When "git daemon" is run without --[init-]timeout specified, a + connection from a client that silently goes offline can hang around + for a long time, wasting resources. The socket-level KEEPALIVE has + been enabled to allow the OS to notice such failed connections. + + * The commands in `git log` family take %C(auto) in a custom format + string. This unconditionally turned the color on, ignoring + --no-color or with --color=auto when the output is not connected to + a tty; this was corrected to make the format truly behave as + "auto". + + * "git rev-list --count" whose walk-length is limited with "-n" + option did not work well with the counting optimized to look at the + bitmap index. + + * "git show -W" (extend hunks to cover the entire function, delimited + by lines that match the "funcname" pattern) used to show the entire + file when a change added an entire function at the end of the file, + which has been fixed. + + * The documentation set has been updated so that literal commands, + configuration variables and environment variables are consistently + typeset in fixed-width font and bold in manpages. + + * "git svn propset" subcommand that was added in 2.3 days is + documented now. + + * The documentation tries to consistently spell "GPG"; when + referring to the specific program name, "gpg" is used. + + * "git reflog" stopped upon seeing an entry that denotes a branch + creation event (aka "unborn"), which made it appear as if the + reflog was truncated. + + * The git-prompt scriptlet (in contrib/) was not friendly with those + who uses "set -u", which has been fixed. + + * A codepath that used alloca(3) to place an unbounded amount of data + on the stack has been updated to avoid doing so. + + * "git update-index --add --chmod=+x file" may be usable as an escape + hatch, but not a friendly thing to force for people who do need to + use it regularly. "git add --chmod=+x file" can be used instead. + + * Build improvements for gnome-keyring (in contrib/) + + * "git status" used to say "working directory" when it meant "working + tree". + + * Comments about misbehaving FreeBSD shells have been clarified with + the version number (9.x and before are broken, newer ones are OK). + + * "git cherry-pick A" worked on an unborn branch, but "git + cherry-pick A..B" didn't. + + * "git add -i/-p" learned to honor diff.compactionHeuristic + experimental knob, so that the user can work on the same hunk split + as "git diff" output. + + * "log --graph --format=" learned that "%>|(N)" specifies the width + relative to the terminal's left edge, not relative to the area to + draw text that is to the right of the ancestry-graph section. It + also now accepts negative N that means the column limit is relative + to the right border. + + * The ownership rule for the piece of memory that hold references to + be fetched in "git fetch" was screwy, which has been cleaned up. + + * "git bisect" makes an internal call to "git diff-tree" when + bisection finds the culprit, but this call did not initialize the + data structure to pass to the diff-tree API correctly. + + * Formats of the various data (and how to validate them) where we use + GPG signature have been documented. + + * Fix an unintended regression in v2.9 that breaks "clone --depth" + that recurses down to submodules by forcing the submodules to also + be cloned shallowly, which many server instances that host upstream + of the submodules are not prepared for. + + * Fix unnecessarily waste in the idiomatic use of ': ${VAR=default}' + to set the default value, without enclosing it in double quotes. + + * Some platform-specific code had non-ANSI strict declarations of C + functions that do not take any parameters, which has been + corrected. + + * The internal code used to show local timezone offset is not + prepared to handle timestamps beyond year 2100, and gave a + bogus offset value to the caller. Use a more benign looking + +0000 instead and let "git log" going in such a case, instead + of aborting. + + * One among four invocations of readlink(1) in our test suite has + been rewritten so that the test can run on systems without the + command (others are in valgrind test framework and t9802). + + * t/perf needs /usr/bin/time with GNU extension; the invocation of it + is updated to "gtime" on Darwin. + + * A bug, which caused "git p4" while running under verbose mode to + report paths that are omitted due to branch prefix incorrectly, has + been fixed; the command said "Ignoring file outside of prefix" for + paths that are _inside_. + + * The top level documentation "git help git" still pointed at the + documentation set hosted at now-defunct google-code repository. + Update it to point to https://git.github.io/htmldocs/git.html + instead. + +Also contains minor documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.9.2.txt b/Documentation/RelNotes/2.9.2.txt new file mode 100644 index 0000000..2620003 --- /dev/null +++ b/Documentation/RelNotes/2.9.2.txt @@ -0,0 +1,13 @@ +Git v2.9.2 Release Notes +======================== + +Fixes since v2.9.1 +------------------ + + * A fix merged to v2.9.1 had a few tests that are not meant to be + run on platforms without 64-bit long, which caused unnecessary + test failures on them because we didn't detect the platform and + skip them. These tests are now skipped on platforms that they + are not applicable to. + +No other change is included in this update. diff --git a/Documentation/RelNotes/2.9.3.txt b/Documentation/RelNotes/2.9.3.txt new file mode 100644 index 0000000..695b86f --- /dev/null +++ b/Documentation/RelNotes/2.9.3.txt @@ -0,0 +1,170 @@ +Git v2.9.3 Release Notes +======================== + +Fixes since v2.9.2 +------------------ + + * A helper function that takes the contents of a commit object and + finds its subject line did not ignore leading blank lines, as is + commonly done by other codepaths. Make it ignore leading blank + lines to match. + + * Git does not know what the contents in the index should be for a + path added with "git add -N" yet, so "git grep --cached" should not + show hits (or show lack of hits, with -L) in such a path, but that + logic does not apply to "git grep", i.e. searching in the working + tree files. But we did so by mistake, which has been corrected. + + * "git rebase -i --autostash" did not restore the auto-stashed change + when the operation was aborted. + + * "git commit --amend --allow-empty-message -S" for a commit without + any message body could have misidentified where the header of the + commit object ends. + + * More mark-up updates to typeset strings that are expected to + literally typed by the end user in fixed-width font. + + * For a long time, we carried an in-code comment that said our + colored output would work only when we use fprintf/fputs on + Windows, which no longer is the case for the past few years. + + * "gc.autoPackLimit" when set to 1 should not trigger a repacking + when there is only one pack, but the code counted poorly and did + so. + + * One part of "git am" had an oddball helper function that called + stuff from outside "his" as opposed to calling what we have "ours", + which was not gender-neutral and also inconsistent with the rest of + the system where outside stuff is usuall called "theirs" in + contrast to "ours". + + * The test framework learned a new helper test_match_signal to + check an exit code from getting killed by an expected signal. + + * "git blame -M" missed a single line that was moved within the file. + + * Fix recently introduced codepaths that are involved in parallel + submodule operations, which gave up on reading too early, and + could have wasted CPU while attempting to write under a corner + case condition. + + * "git grep -i" has been taught to fold case in non-ascii locales + correctly. + + * A test that unconditionally used "mktemp" learned that the command + is not necessarily available everywhere. + + * "git blame file" allowed the lineage of lines in the uncommitted, + unadded contents of "file" to be inspected, but it refused when + "file" did not appear in the current commit. When "file" was + created by renaming an existing file (but the change has not been + committed), this restriction was unnecessarily tight. + + * "git add -N dir/file && git write-tree" produced an incorrect tree + when there are other paths in the same directory that sorts after + "file". + + * "git fetch http://user:pass@host/repo..." scrubbed the userinfo + part, but "git push" didn't. + + * An age old bug that caused "git diff --ignore-space-at-eol" + misbehave has been fixed. + + * "git notes merge" had a code to see if a path exists (and fails if + it does) and then open the path for writing (when it doesn't). + Replace it with open with O_EXCL. + + * "git pack-objects" and "git index-pack" mostly operate with off_t + when talking about the offset of objects in a packfile, but there + were a handful of places that used "unsigned long" to hold that + value, leading to an unintended truncation. + + * Recent update to "git daemon" tries to enable the socket-level + KEEPALIVE, but when it is spawned via inetd, the standard input + file descriptor may not necessarily be connected to a socket. + Suppress an ENOTSOCK error from setsockopt(). + + * Recent FreeBSD stopped making perl available at /usr/bin/perl; + switch the default the built-in path to /usr/local/bin/perl on not + too ancient FreeBSD releases. + + * "git status" learned to suggest "merge --abort" during a conflicted + merge, just like it already suggests "rebase --abort" during a + conflicted rebase. + + * The .c/.h sources are marked as such in our .gitattributes file so + that "git diff -W" and friends would work better. + + * Existing autoconf generated test for the need to link with pthread + library did not check all the functions from pthread libraries; + recent FreeBSD has some functions in libc but not others, and we + mistakenly thought linking with libc is enough when it is not. + + * Allow http daemon tests in Travis CI tests. + + * Users of the parse_options_concat() API function need to allocate + extra slots in advance and fill them with OPT_END() when they want + to decide the set of supported options dynamically, which makes the + code error-prone and hard to read. This has been corrected by tweaking + the API to allocate and return a new copy of "struct option" array. + + * The use of strbuf in "git rm" to build filename to remove was a bit + suboptimal, which has been fixed. + + * "git commit --help" said "--no-verify" is only about skipping the + pre-commit hook, and failed to say that it also skipped the + commit-msg hook. + + * "git merge" in Git v2.9 was taught to forbid merging an unrelated + lines of history by default, but that is exactly the kind of thing + the "--rejoin" mode of "git subtree" (in contrib/) wants to do. + "git subtree" has been taught to use the "--allow-unrelated-histories" + option to override the default. + + * The build procedure for "git persistent-https" helper (in contrib/) + has been updated so that it can be built with more recent versions + of Go. + + * There is an optimization used in "git diff $treeA $treeB" to borrow + an already checked-out copy in the working tree when it is known to + be the same as the blob being compared, expecting that open/mmap of + such a file is faster than reading it from the object store, which + involves inflating and applying delta. This however kicked in even + when the checked-out copy needs to go through the convert-to-git + conversion (including the clean filter), which defeats the whole + point of the optimization. The optimization has been disabled when + the conversion is necessary. + + * "git -c grep.patternType=extended log --basic-regexp" misbehaved + because the internal API to access the grep machinery was not + designed well. + + * Windows port was failing some tests in t4130, due to the lack of + inum in the returned values by its lstat(2) emulation. + + * The characters in the label shown for tags/refs for commits in + "gitweb" output are now properly escaped for proper HTML output. + + * FreeBSD can lie when asked mtime of a directory, which made the + untracked cache code to fall back to a slow-path, which in turn + caused tests in t7063 to fail because it wanted to verify the + behaviour of the fast-path. + + * Squelch compiler warnings for netmalloc (in compat/) library. + + * The API documentation for hashmap was unclear if hashmap_entry + can be safely discarded without any other consideration. State + that it is safe to do so. + + * Not-so-recent rewrite of "git am" that started making internal + calls into the commit machinery had an unintended regression, in + that no matter how many seconds it took to apply many patches, the + resulting committer timestamp for the resulting commits were all + the same. + + * "git difftool <paths>..." started in a subdirectory failed to + interpret the paths relative to that directory, which has been + fixed. + +Also contains minor documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.9.4.txt b/Documentation/RelNotes/2.9.4.txt new file mode 100644 index 0000000..01e8642 --- /dev/null +++ b/Documentation/RelNotes/2.9.4.txt @@ -0,0 +1,83 @@ +Git v2.9.4 Release Notes +======================== + +Fixes since v2.9.3 +------------------ + + * There are certain house-keeping tasks that need to be performed at + the very beginning of any Git program, and programs that are not + built-in commands had to do them exactly the same way as "git" + potty does. It was easy to make mistakes in one-off standalone + programs (like test helpers). A common "main()" function that + calls cmd_main() of individual program has been introduced to + make it harder to make mistakes. + + * "git merge" with renormalization did not work well with + merge-recursive, due to "safer crlf" conversion kicking in when it + shouldn't. + + * The reflog output format is documented better, and a new format + --date=unix to report the seconds-since-epoch (without timezone) + has been added. + + * "git push --force-with-lease" already had enough logic to allow + ensuring that such a push results in creation of a ref (i.e. the + receiving end did not have another push from sideways that would be + discarded by our force-pushing), but didn't expose this possibility + to the users. It does so now. + + * "import-tars" fast-import script (in contrib/) used to ignore a + hardlink target and replaced it with an empty file, which has been + corrected to record the same blob as the other file the hardlink is + shared with. + + * "git mv dir non-existing-dir/" did not work in some environments + the same way as existing mainstream platforms. The code now moves + "dir" to "non-existing-dir", without relying on rename("A", "B/") + that strips the trailing slash of '/'. + + * The "t/" hierarchy is prone to get an unusual pathname; "make test" + has been taught to make sure they do not contain paths that cannot + be checked out on Windows (and the mechanism can be reusable to + catch pathnames that are not portable to other platforms as need + arises). + + * When "git merge-recursive" works on history with many criss-cross + merges in "verbose" mode, the names the command assigns to the + virtual merge bases could have overwritten each other by unintended + reuse of the same piece of memory. + + * "git checkout --detach <branch>" used to give the same advice + message as that is issued when "git checkout <tag>" (or anything + that is not a branch name) is given, but asking with "--detach" is + an explicit enough sign that the user knows what is going on. The + advice message has been squelched in this case. + + * "git difftool" by default ignores the error exit from the backend + commands it spawns, because often they signal that they found + differences by exiting with a non-zero status code just like "diff" + does; the exit status codes 126 and above however are special in + that they are used to signal that the command is not executable, + does not exist, or killed by a signal. "git difftool" has been + taught to notice these exit status codes. + + * On Windows, help.browser configuration variable used to be ignored, + which has been corrected. + + * The "git -c var[=val] cmd" facility to append a configuration + variable definition at the end of the search order was described in + git(1) manual page, but not in git-config(1), which was more likely + place for people to look for when they ask "can I make a one-shot + override, and if so how?" + + * The tempfile (hence its user lockfile) API lets the caller to open + a file descriptor to a temporary file, write into it and then + finalize it by first closing the filehandle and then either + removing or renaming the temporary file. When the process spawns a + subprocess after obtaining the file descriptor, and if the + subprocess has not exited when the attempt to remove or rename is + made, the last step fails on Windows, because the subprocess has + the file descriptor still open. Open tempfile with O_CLOEXEC flag + to avoid this (on Windows, this is mapped to O_NOINHERIT). + +Also contains minor documentation updates and code clean-ups. |