diff options
Diffstat (limited to 'Documentation/RelNotes')
| -rw-r--r-- | Documentation/RelNotes/2.15.0.txt | 508 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.15.1.txt | 88 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.15.2.txt | 47 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.16.0.txt | 482 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.16.1.txt | 11 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.16.2.txt | 30 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.16.3.txt | 49 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.17.0.txt | 398 | ||||
| -rw-r--r-- | Documentation/RelNotes/2.18.0.txt | 200 |
9 files changed, 1813 insertions, 0 deletions
diff --git a/Documentation/RelNotes/2.15.0.txt b/Documentation/RelNotes/2.15.0.txt new file mode 100644 index 0000000..cdd761b --- /dev/null +++ b/Documentation/RelNotes/2.15.0.txt @@ -0,0 +1,508 @@ +Git 2.15 Release Notes +====================== + +Backward compatibility notes and other notable changes. + + * Use of an empty string as a pathspec element that is used for + 'everything matches' is still warned and Git asks users to use a + more explicit '.' for that instead. The hope is that existing + users will not mind this change, and eventually the warning can be + turned into a hard error, upgrading the deprecation into removal of + this (mis)feature. That is now scheduled to happen in Git v2.16, + the next major release after this one. + + * Git now avoids blindly falling back to ".git" when the setup + sequence said we are _not_ in Git repository. A corner case that + happens to work right now may be broken by a call to BUG(). + We've tried hard to locate such cases and fixed them, but there + might still be cases that need to be addressed--bug reports are + greatly appreciated. + + * "branch --set-upstream" that has been deprecated in Git 1.8 has + finally been retired. + + +Updates since v2.14 +------------------- + +UI, Workflows & Features + + * An example that is now obsolete has been removed from a sample hook, + and an old example in it that added a sign-off manually has been + improved to use the interpret-trailers command. + + * The advice message given when "git rebase" stops for conflicting + changes has been improved. + + * The "rerere-train" script (in contrib/) learned the "--overwrite" + option to allow overwriting existing recorded resolutions. + + * "git contacts" (in contrib/) now lists the address on the + "Reported-by:" trailer to its output, in addition to those on + S-o-b: and other trailers, to make it easier to notify (and thank) + the original bug reporter. + + * "git rebase", especially when it is run by mistake and ends up + trying to replay many changes, spent long time in silence. The + command has been taught to show progress report when it spends + long time preparing these many changes to replay (which would give + the user a chance to abort with ^C). + + * "git merge" learned a "--signoff" option to add the Signed-off-by: + trailer with the committer's name. + + * "git diff" learned to optionally paint new lines that are the same + as deleted lines elsewhere differently from genuinely new lines. + + * "git interpret-trailers" learned to take the trailer specifications + from the command line that overrides the configured values. + + * "git interpret-trailers" has been taught a "--parse" and a few + other options to make it easier for scripts to grab existing + trailer lines from a commit log message. + + * The "--format=%(trailers)" option "git log" and its friends take + learned to take the 'unfold' and 'only' modifiers to normalize its + output, e.g. "git log --format=%(trailers:only,unfold)". + + * "gitweb" shows a link to visit the 'raw' contents of blobs in the + history overview page. + + * "[gc] rerereResolved = 5.days" used to be invalid, as the variable + is defined to take an integer counting the number of days. It now + is allowed. + + * The code to acquire a lock on a reference (e.g. while accepting a + push from a client) used to immediately fail when the reference is + already locked---now it waits for a very short while and retries, + which can make it succeed if the lock holder was holding it during + a read-only operation. + + * "branch --set-upstream" that has been deprecated in Git 1.8 has + finally been retired. + + * The codepath to call external process filter for smudge/clean + operation learned to show the progress meter. + + * "git rev-parse" learned "--is-shallow-repository", that is to be + used in a way similar to existing "--is-bare-repository" and + friends. + + * "git describe --match <pattern>" has been taught to play well with + the "--all" option. + + * "git branch" learned "-c/-C" to create a new branch by copying an + existing one. + + * Some commands (most notably "git status") makes an opportunistic + update when performing a read-only operation to help optimize later + operations in the same repository. The new "--no-optional-locks" + option can be passed to Git to disable them. + + * "git for-each-ref --format=..." learned a new format element, + %(trailers), to show only the commit log trailer part of the log + message. + + +Performance, Internal Implementation, Development Support etc. + + * Conversion from uchar[20] to struct object_id continues. + + * Start using selected c99 constructs in small, stable and + essential part of the system to catch people who care about + older compilers that do not grok them. + + * The filter-process interface learned to allow a process with long + latency give a "delayed" response. + + * Many uses of comparison callback function the hashmap API uses + cast the callback function type when registering it to + hashmap_init(), which defeats the compile time type checking when + the callback interface changes (e.g. gaining more parameters). + The callback implementations have been updated to take "void *" + pointers and cast them to the type they expect instead. + + * Because recent Git for Windows do come with a real msgfmt, the + build procedure for git-gui has been updated to use it instead of a + hand-rolled substitute. + + * "git grep --recurse-submodules" has been reworked to give a more + consistent output across submodule boundary (and do its thing + without having to fork a separate process). + + * A helper function to read a single whole line into strbuf + mistakenly triggered OOM error at EOF under certain conditions, + which has been fixed. + + * The "ref-store" code reorganization continues. + + * "git commit" used to discard the index and re-read from the filesystem + just in case the pre-commit hook has updated it in the middle; this + has been optimized out when we know we do not run the pre-commit hook. + (merge 680ee550d7 kw/commit-keep-index-when-pre-commit-is-not-run later to maint). + + * Updates to the HTTP layer we made recently unconditionally used + features of libCurl without checking the existence of them, causing + compilation errors, which has been fixed. Also migrate the code to + check feature macros, not version numbers, to cope better with + libCurl that vendor ships with backported features. + + * The API to start showing progress meter after a short delay has + been simplified. + (merge 8aade107dd jc/simplify-progress later to maint). + + * Code clean-up to avoid mixing values read from the .gitmodules file + and values read from the .git/config file. + + * We used to spend more than necessary cycles allocating and freeing + piece of memory while writing each index entry out. This has been + optimized. + + * Platforms that ship with a separate sha1 with collision detection + library can link to it instead of using the copy we ship as part of + our source tree. + + * Code around "notes" have been cleaned up. + (merge 3964281524 mh/notes-cleanup later to maint). + + * The long-standing rule that an in-core lockfile instance, once it + is used, must not be freed, has been lifted and the lockfile and + tempfile APIs have been updated to reduce the chance of programming + errors. + + * Our hashmap implementation in hashmap.[ch] is not thread-safe when + adding a new item needs to expand the hashtable by rehashing; add + an API to disable the automatic rehashing to work it around. + + * Many of our programs consider that it is OK to release dynamic + storage that is used throughout the life of the program by simply + exiting, but this makes it harder to leak detection tools to avoid + reporting false positives. Plug many existing leaks and introduce + a mechanism for developers to mark that the region of memory + pointed by a pointer is not lost/leaking to help these tools. + + * As "git commit" to conclude a conflicted "git merge" honors the + commit-msg hook, "git merge" that records a merge commit that + cleanly auto-merges should, but it didn't. + + * The codepath for "git merge-recursive" has been cleaned up. + + * Many leaks of strbuf have been fixed. + + * "git imap-send" has our own implementation of the protocol and also + can use more recent libCurl with the imap protocol support. Update + the latter so that it can use the credential subsystem, and then + make it the default option to use, so that we can eventually + deprecate and remove the former. + + * "make style" runs git-clang-format to help developers by pointing + out coding style issues. + + * A test to demonstrate "git mv" failing to adjust nested submodules + has been added. + (merge c514167df2 hv/mv-nested-submodules-test later to maint). + + * On Cygwin, "ulimit -s" does not report failure but it does not work + at all, which causes an unexpected success of some tests that + expect failures under a limited stack situation. This has been + fixed. + + * Many codepaths have been updated to squelch -Wimplicit-fallthrough + warnings from Gcc 7 (which is a good code hygiene). + + * Add a helper for DLL loading in anticipation for its need in a + future topic RSN. + + * "git status --ignored", when noticing that a directory without any + tracked path is ignored, still enumerated all the ignored paths in + the directory, which is unnecessary. The codepath has been + optimized to avoid this overhead. + + * The final batch to "git rebase -i" updates to move more code from + the shell script to C has been merged. + + * Operations that do not touch (majority of) packed refs have been + optimized by making accesses to packed-refs file lazy; we no longer + pre-parse everything, and an access to a single ref in the + packed-refs does not touch majority of irrelevant refs, either. + + * Add comment to clarify that the style file is meant to be used with + clang-5 and the rules are still work in progress. + + * Many variables that points at a region of memory that will live + throughout the life of the program have been marked with UNLEAK + marker to help the leak checkers concentrate on real leaks.. + + * Plans for weaning us off of SHA-1 has been documented. + + * A new "oidmap" API has been introduced and oidset API has been + rewritten to use it. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.14 +----------------- + + * "%C(color name)" in the pretty print format always produced ANSI + color escape codes, which was an early design mistake. They now + honor the configuration (e.g. "color.ui = never") and also tty-ness + of the output medium. + + * The http.{sslkey,sslCert} configuration variables are to be + interpreted as a pathname that honors "~[username]/" prefix, but + weren't, which has been fixed. + + * Numerous bugs in walking of reflogs via "log -g" and friends have + been fixed. + + * "git commit" when seeing an totally empty message said "you did not + edit the message", which is clearly wrong. The message has been + corrected. + + * When a directory is not readable, "gitweb" fails to build the + project list. Work this around by skipping such a directory. + + * Some versions of GnuPG fails to kill gpg-agent it auto-spawned + and such a left-over agent can interfere with a test. Work it + around by attempting to kill one before starting a new test. + + * A recently added test for the "credential-cache" helper revealed + that EOF detection done around the time the connection to the cache + daemon is torn down were flaky. This was fixed by reacting to + ECONNRESET and behaving as if we got an EOF. + + * "git log --tag=no-such-tag" showed log starting from HEAD, which + has been fixed---it now shows nothing. + + * The "tag.pager" configuration variable was useless for those who + actually create tag objects, as it interfered with the use of an + editor. A new mechanism has been introduced for commands to enable + pager depending on what operation is being carried out to fix this, + and then "git tag -l" is made to run pager by default. + + * "git push --recurse-submodules $there HEAD:$target" was not + propagated down to the submodules, but now it is. + + * Commands like "git rebase" accepted the --rerere-autoupdate option + from the command line, but did not always use it. This has been + fixed. + + * "git clone --recurse-submodules --quiet" did not pass the quiet + option down to submodules. + + * Test portability fix for OBSD. + + * Portability fix for OBSD. + + * "git am -s" has been taught that some input may end with a trailer + block that is not Signed-off-by: and it should refrain from adding + an extra blank line before adding a new sign-off in such a case. + + * "git svn" used with "--localtime" option did not compute the tz + offset for the timestamp in question and instead always used the + current time, which has been corrected. + + * Memory leak in an error codepath has been plugged. + + * "git stash -u" used the contents of the committed version of the + ".gitignore" file to decide which paths are ignored, even when the + file has local changes. The command has been taught to instead use + the locally modified contents. + + * bash 4.4 or newer gave a warning on NUL byte in command + substitution done in "git stash"; this has been squelched. + + * "git grep -L" and "git grep --quiet -L" reported different exit + codes; this has been corrected. + + * When handshake with a subprocess filter notices that the process + asked for an unknown capability, Git did not report what program + the offending subprocess was running. This has been corrected. + + * "git apply" that is used as a better "patch -p1" failed to apply a + taken from a file with CRLF line endings to a file with CRLF line + endings. The root cause was because it misused convert_to_git() + that tried to do "safe-crlf" processing by looking at the index + entry at the same path, which is a nonsense---in that mode, "apply" + is not working on the data in (or derived from) the index at all. + This has been fixed. + + * Killing "git merge --edit" before the editor returns control left + the repository in a state with MERGE_MSG but without MERGE_HEAD, + which incorrectly tells the subsequent "git commit" that there was + a squash merge in progress. This has been fixed. + + * "git archive" did not work well with pathspecs and the + export-ignore attribute. + + * In addition to "cc: <a@dd.re.ss> # cruft", "cc: a@dd.re.ss # cruft" + was taught to "git send-email" as a valid way to tell it that it + needs to also send a carbon copy to <a@dd.re.ss> in the trailer + section. + + * "git branch -M a b" while on a branch that is completely unrelated + to either branch a or branch b misbehaved when multiple worktree + was in use. This has been fixed. + (merge 31824d180d nd/worktree-kill-parse-ref later to maint). + + * "git gc" and friends when multiple worktrees are used off of a + single repository did not consider the index and per-worktree refs + of other worktrees as the root for reachability traversal, making + objects that are in use only in other worktrees to be subject to + garbage collection. + + * A regression to "gitk --bisect" by a recent update has been fixed. + + * "git -c submodule.recurse=yes pull" did not work as if the + "--recurse-submodules" option was given from the command line. + This has been corrected. + + * Unlike "git commit-tree < file", "git commit-tree -F file" did not + pass the contents of the file verbatim and instead completed an + incomplete line at the end, if exists. The latter has been updated + to match the behaviour of the former. + + * Many codepaths did not diagnose write failures correctly when disks + go full, due to their misuse of write_in_full() helper function, + which have been corrected. + (merge f48ecd38cb jk/write-in-full-fix later to maint). + + * "git help co" now says "co is aliased to ...", not "git co is". + (merge b3a8076e0d ks/help-alias-label later to maint). + + * "git archive", especially when used with pathspec, stored an empty + directory in its output, even though Git itself never does so. + This has been fixed. + + * API error-proofing which happens to also squelch warnings from GCC. + + * The explanation of the cut-line in the commit log editor has been + slightly tweaked. + (merge 8c4b1a3593 ks/commit-do-not-touch-cut-line later to maint). + + * "git gc" tries to avoid running two instances at the same time by + reading and writing pid/host from and to a lock file; it used to + use an incorrect fscanf() format when reading, which has been + corrected. + + * The scripts to drive TravisCI has been reorganized and then an + optimization to avoid spending cycles on a branch whose tip is + tagged has been implemented. + (merge 8376eb4a8f ls/travis-scriptify later to maint). + + * The test linter has been taught that we do not like "echo -e". + + * Code cmp.std.c nitpick. + + * A regression fix for 2.11 that made the code to read the list of + alternate object stores overrun the end of the string. + (merge f0f7bebef7 jk/info-alternates-fix later to maint). + + * "git describe --match" learned to take multiple patterns in v2.13 + series, but the feature ignored the patterns after the first one + and did not work at all. This has been fixed. + + * "git filter-branch" cannot reproduce a history with a tag without + the tagger field, which only ancient versions of Git allowed to be + created. This has been corrected. + (merge b2c1ca6b4b ic/fix-filter-branch-to-handle-tag-without-tagger later to maint). + + * "git cat-file --textconv" started segfaulting recently, which + has been corrected. + + * The built-in pattern to detect the "function header" for HTML did + not match <H1>..<H6> elements without any attributes, which has + been fixed. + + * "git mailinfo" was loose in decoding quoted printable and produced + garbage when the two letters after the equal sign are not + hexadecimal. This has been fixed. + + * The machinery to create xdelta used in pack files received the + sizes of the data in size_t, but lost the higher bits of them by + storing them in "unsigned int" during the computation, which is + fixed. + + * The delta format used in the packfile cannot reference data at + offset larger than what can be expressed in 4-byte, but the + generator for the data failed to make sure the offset does not + overflow. This has been corrected. + + * The documentation for '-X<option>' for merges was misleadingly + written to suggest that "-s theirs" exists, which is not the case. + + * "git fast-export" with -M/-C option issued "copy" instruction on a + path that is simultaneously modified, which was incorrect. + (merge b3e8ca89cf jt/fast-export-copy-modify-fix later to maint). + + * Many codepaths have been updated to squelch -Wsign-compare + warnings. + (merge 071bcaab64 rj/no-sign-compare later to maint). + + * Memory leaks in various codepaths have been plugged. + (merge 4d01a7fa65 ma/leakplugs later to maint). + + * Recent versions of "git rev-parse --parseopt" did not parse the + option specification that does not have the optional flags (*=?!) + correctly, which has been corrected. + (merge a6304fa4c2 bc/rev-parse-parseopt-fix later to maint). + + * The checkpoint command "git fast-import" did not flush updates to + refs and marks unless at least one object was created since the + last checkpoint, which has been corrected, as these things can + happen without any new object getting created. + (merge 30e215a65c er/fast-import-dump-refs-on-checkpoint later to maint). + + * Spell the name of our system as "Git" in the output from + request-pull script. + + * Fixes for a handful memory access issues identified by valgrind. + + * Backports a moral equivalent of 2015 fix to the poll() emulation + from the upstream gnulib to fix occasional breakages on HPE NonStop. + + * Users with "color.ui = always" in their configuration were broken + by a recent change that made plumbing commands to pay attention to + them as the patch created internally by "git add -p" were colored + (heh) and made unusable. This has been fixed by reverting the + offending change. + + * In the "--format=..." option of the "git for-each-ref" command (and + its friends, i.e. the listing mode of "git branch/tag"), "%(atom:)" + (e.g. "%(refname:)", "%(body:)" used to error out. Instead, treat + them as if the colon and an empty string that follows it were not + there. + + * An ancient bug that made Git misbehave with creation/renaming of + refs has been fixed. + + * "git fetch <there> <src>:<dst>" allows an object name on the <src> + side when the other side accepts such a request since Git v2.5, but + the documentation was left stale. + (merge 83558a412a jc/fetch-refspec-doc-update later to maint). + + * Update the documentation for "git filter-branch" so that the filter + options are listed in the same order as they are applied, as + described in an earlier part of the doc. + (merge 07c4984508 dg/filter-branch-filter-order-doc later to maint). + + * A possible oom error is now caught as a fatal error, instead of + continuing and dereferencing NULL. + (merge 55d7d15847 ao/path-use-xmalloc later to maint). + + * Other minor doc, test and build updates and code cleanups. + (merge f094b89a4d ma/parse-maybe-bool later to maint). + (merge 6cdf8a7929 ma/ts-cleanups later to maint). + (merge 7560f547e6 ma/up-to-date later to maint). + (merge 0db3dc75f3 rs/apply-epoch later to maint). + (merge 276d0e35c0 ma/split-symref-update-fix later to maint). + (merge f777623514 ks/branch-tweak-error-message-for-extra-args later to maint). + (merge 33f3c683ec ks/verify-filename-non-option-error-message-tweak later to maint). + (merge 7cbbf9d6a2 ls/filter-process-delayed later to maint). + (merge 488aa65c8f wk/merge-options-gpg-sign-doc later to maint). + (merge e61cb19a27 jc/branch-force-doc-readability-fix later to maint). + (merge 32fceba3fd np/config-path-doc later to maint). + (merge e38c681fb7 sb/rev-parse-show-superproject-root later to maint). + (merge 4f851dc883 sg/rev-list-doc-reorder-fix later to maint). diff --git a/Documentation/RelNotes/2.15.1.txt b/Documentation/RelNotes/2.15.1.txt new file mode 100644 index 0000000..ec06704 --- /dev/null +++ b/Documentation/RelNotes/2.15.1.txt @@ -0,0 +1,88 @@ +Git v2.15.1 Release Notes +========================= + +Fixes since v2.15 +----------------- + + * TravisCI build updates. + + * "auto" as a value for the columnar output configuration ought to + judge "is the output consumed by humans?" with the same criteria as + "auto" for coloured output configuration, i.e. either the standard + output stream is going to tty, or a pager is in use. We forgot the + latter, which has been fixed. + + * The experimental "color moved lines differently in diff output" + feature was buggy around "ignore whitespace changes" edges, which + has been corrected. + + * Instead of using custom line comparison and hashing functions to + implement "moved lines" coloring in the diff output, use the pair + of these functions from lower-layer xdiff/ code. + + * Some codepaths did not check for errors when asking what branch the + HEAD points at, which have been fixed. + + * "git commit", after making a commit, did not check for errors when + asking on what branch it made the commit, which has been corrected. + + * "git status --ignored -u" did not stop at a working tree of a + separate project that is embedded in an ignored directory and + listed files in that other project, instead of just showing the + directory itself as ignored. + + * A broken access to object databases in recent update to "git grep + --recurse-submodules" has been fixed. + + * A recent regression in "git rebase -i" that broke execution of git + commands from subdirectories via "exec" instruction has been fixed. + + * "git check-ref-format --branch @{-1}" bit a "BUG()" when run + outside a repository for obvious reasons; clarify the documentation + and make sure we do not even try to expand the at-mark magic in + such a case, but still call the validation logic for branch names. + + * Command line completion (in contrib/) update. + + * Description of blame.{showroot,blankboundary,showemail,date} + configuration variables have been added to "git config --help". + + * After an error from lstat(), diff_populate_filespec() function + sometimes still went ahead and used invalid data in struct stat, + which has been fixed. + + * UNC paths are also relevant in Cygwin builds and they are now + tested just like Mingw builds. + + * Correct start-up sequence so that a repository could be placed + immediately under the root directory again (which was broken at + around Git 2.13). + + * The credential helper for libsecret (in contrib/) has been improved + to allow possibly prompting the end user to unlock secrets that are + currently locked (otherwise the secrets may not be loaded). + + * Updates from GfW project. + + * "git rebase -i" recently started misbehaving when a submodule that + is configured with 'submodule.<name>.ignore' is dirty; this has + been corrected. + + * Some error messages did not quote filenames shown in it, which have + been fixed. + + * Building with NO_LIBPCRE1_JIT did not disable it, which has been fixed. + + * We used to add an empty alternate object database to the system + that does not help anything; it has been corrected. + + * Error checking in "git imap-send" for empty response has been + improved. + + * An ancient bug in "git apply --ignore-space-change" codepath has + been fixed. + + * There was a recent semantic mismerge in the codepath to write out a + section of a configuration section, which has been corrected. + +Also contains various documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.15.2.txt b/Documentation/RelNotes/2.15.2.txt new file mode 100644 index 0000000..9f7e28f --- /dev/null +++ b/Documentation/RelNotes/2.15.2.txt @@ -0,0 +1,47 @@ +Git v2.15.2 Release Notes +========================= + +Fixes since v2.15.1 +------------------- + + * Recent update to the refs infrastructure implementation started + rewriting packed-refs file more often than before; this has been + optimized again for most trivial cases. + + * The SubmittingPatches document has been converted to produce an + HTML version via AsciiDoc/Asciidoctor. + + * Contrary to the documentation, "git pull -4/-6 other-args" did not + ask the underlying "git fetch" to go over IPv4/IPv6, which has been + corrected. + + * When "git rebase" prepared an mailbox of changes and fed it to "git + am" to replay them, it was confused when a stray "From " happened + to be in the log message of one of the replayed changes. This has + been corrected. + + * Command line completion (in contrib/) has been taught about the + "--copy" option of "git branch". + + * "git apply --inaccurate-eof" when used with "--ignore-space-change" + triggered an internal sanity check, which has been fixed. + + * The sequencer machinery (used by "git cherry-pick A..B", and "git + rebase -i", among other things) would have lost a commit if stopped + due to an unlockable index file, which has been fixed. + + * The three-way merge performed by "git cherry-pick" was confused + when a new submodule was added in the meantime, which has been + fixed (or "papered over"). + + * "git notes" sent its error message to its standard output stream, + which was corrected. + + * A few scripts (both in production and tests) incorrectly redirected + their error output. These have been corrected. + + * Clarify and enhance documentation for "merge-base --fork-point", as + it was clear what it computed but not why/what for. + + +Also contains various documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.16.0.txt b/Documentation/RelNotes/2.16.0.txt new file mode 100644 index 0000000..0c81c59 --- /dev/null +++ b/Documentation/RelNotes/2.16.0.txt @@ -0,0 +1,482 @@ +Git 2.16 Release Notes +====================== + +Backward compatibility notes and other notable changes. + + * Use of an empty string as a pathspec element that is used for + 'everything matches' is now an error. + + +Updates since v2.15 +------------------- + +UI, Workflows & Features + + * An empty string as a pathspec element that means "everything" + i.e. 'git add ""', is now illegal. We started this by first + deprecating and warning a pathspec that has such an element in + 2.11 (Nov 2016). + + * A hook script that is set unexecutable is simply ignored. Git + notifies when such a file is ignored, unless the message is + squelched via advice.ignoredHook configuration. + + * "git pull" has been taught to accept "--[no-]signoff" option and + pass it down to "git merge". + + * The "--push-option=<string>" option to "git push" now defaults to a + list of strings configured via push.pushOption variable. + + * "gitweb" checks if a directory is searchable with Perl's "-x" + operator, which can be enhanced by using "filetest 'access'" + pragma, which now we do. + + * "git stash save" has been deprecated in favour of "git stash push". + + * The set of paths output from "git status --ignored" was tied + closely with its "--untracked=<mode>" option, but now it can be + controlled more flexibly. Most notably, a directory that is + ignored because it is listed to be ignored in the ignore/exclude + mechanism can be handled differently from a directory that ends up + to be ignored only because all files in it are ignored. + + * The remote-helper for talking to MediaWiki has been updated to + truncate an overlong pagename so that ".mw" suffix can still be + added. + + * The remote-helper for talking to MediaWiki has been updated to + work with mediawiki namespaces. + + * The "--format=..." option "git for-each-ref" takes learned to show + the name of the 'remote' repository and the ref at the remote side + that is affected for 'upstream' and 'push' via "%(push:remotename)" + and friends. + + * Doc and message updates to teach users "bisect view" is a synonym + for "bisect visualize". + + * "git bisect run" that did not specify any command to run used to go + ahead and treated all commits to be tested as 'good'. This has + been corrected by making the command error out. + + * The SubmittingPatches document has been converted to produce an + HTML version via AsciiDoc/Asciidoctor. + + * We learned to optionally talk to a file system monitor via new + fsmonitor extension to speed up "git status" and other operations + that need to see which paths have been modified. Currently we only + support "watchman". See File System Monitor section of + git-update-index(1) for more detail. + + * The "diff" family of commands learned to ignore differences in + carriage return at the end of line. + + * Places that know about "sendemail.to", like documentation and shell + completion (in contrib/) have been taught about "sendemail.tocmd", + too. + + * "git add --renormalize ." is a new and safer way to record the fact + that you are correcting the end-of-line convention and other + "convert_to_git()" glitches in the in-repository data. + + * "git branch" and "git checkout -b" are now forbidden from creating + a branch whose name is "HEAD". + + * "git branch --list" learned to show its output through the pager by + default when the output is going to a terminal, which is controlled + by the pager.branch configuration variable. This is similar to a + recent change to "git tag --list". + + * "git grep -W", "git diff -W" and their friends learned a heuristic + to extend a pre-context beyond the line that matches the "function + pattern" (aka "diff.*.xfuncname") to include a comment block, if + exists, that immediately precedes it. + + * "git config --expiry-date gc.reflogexpire" can read "2.weeks" from + the configuration and report it as a timestamp, just like "--int" + would read "1k" and report 1024, to help consumption by scripts. + + * The shell completion (in contrib/) learned that "git pull" can take + the "--autostash" option. + + * The tagnames "git log --decorate" uses to annotate the commits can + now be limited to subset of available refs with the two additional + options, --decorate-refs[-exclude]=<pattern>. + + * "git grep" compiled with libpcre2 sometimes triggered a segfault, + which is being fixed. + + * "git send-email" tries to see if the sendmail program is available + in /usr/lib and /usr/sbin; extend the list of locations to be + checked to also include directories on $PATH. + + * "git diff" learned, "--anchored", a variant of the "--patience" + algorithm, to which the user can specify which 'unique' line to be + used as anchoring points. + + * The way "git worktree add" determines what branch to create from + where and checkout in the new worktree has been updated a bit. + + * Ancient part of codebase still shows dots after an abbreviated + object name just to show that it is not a full object name, but + these ellipses are confusing to people who newly discovered Git + who are used to seeing abbreviated object names and find them + confusing with the range syntax. + + * With a configuration variable rebase.abbreviateCommands set, + "git rebase -i" produces the todo list with a single-letter + command names. + + * "git worktree add" learned to run the post-checkout hook, just like + "git checkout" does, after the initial checkout. + + * "git svn" has been updated to strip CRs in the commit messages, as + recent versions of Subversion rejects them. + + * "git imap-send" did not correctly quote the folder name when + making a request to the server, which has been corrected. + + * Error messages from "git rebase" have been somewhat cleaned up. + + * Git has been taught to support an https:// URL used for http.proxy + when using recent versions of libcurl. + + * "git merge" learned to pay attention to merge.verifySignatures + configuration variable and pretend as if '--verify-signatures' + option was given from the command line. + + * "git describe" was taught to dig trees deeper to find a + <commit-ish>:<path> that refers to a given blob object. + + +Performance, Internal Implementation, Development Support etc. + + * An earlier update made it possible to use an on-stack in-core + lockfile structure (as opposed to having to deliberately leak an + on-heap one). Many codepaths have been updated to take advantage + of this new facility. + + * Calling cmd_foo() as if it is a general purpose helper function is + a no-no. Correct two instances of such to set an example. + + * We try to see if somebody runs our test suite with a shell that + does not support "local" like bash/dash does. + + * An early part of piece-by-piece rewrite of "git bisect" in C. + + * GSoC to piece-by-piece rewrite "git submodule" in C. + + * Optimize the code to find shortest unique prefix of object names. + + * Pathspec-limited revision traversal was taught not to keep finding + unneeded differences once it knows two trees are different inside + given pathspec. + + * Conversion from uchar[20] to struct object_id continues. + + * Code cleanup. + + * A single-word "unsigned flags" in the diff options is being split + into a structure with many bitfields. + + * TravisCI build updates. + + * Parts of a test to drive the long-running content filter interface + has been split into its own module, hopefully to eventually become + reusable. + + * Drop (perhaps overly cautious) sanity check before using the index + read from the filesystem at runtime. + + * The build procedure has been taught to avoid some unnecessary + instability in the build products. + + * A new mechanism to upgrade the wire protocol in place is proposed + and demonstrated that it works with the older versions of Git + without harming them. + + * An infrastructure to define what hash function is used in Git is + introduced, and an effort to plumb that throughout various + codepaths has been started. + + * The code to iterate over loose object files got optimized. + + * An internal function that was left for backward compatibility has + been removed, as there is no remaining callers. + + * Historically, the diff machinery for rename detection had a + hardcoded limit of 32k paths; this is being lifted to allow users + trade cycles with a (possibly) easier to read result. + + * The tracing infrastructure has been optimized for cases where no + tracing is requested. + + * In preparation for implementing narrow/partial clone, the object + walking machinery has been taught a way to tell it to "filter" some + objects from enumeration. + + * A few structures and variables that are implementation details of + the decorate API have been renamed and then the API got documented + better. + + * Assorted updates for TravisCI integration. + (merge 4f26366679 sg/travis-fixes later to maint). + + * Introduce a helper to simplify code to parse a common pattern that + expects either "--key" or "--key=<something>". + + * "git version --build-options" learned to report the host CPU and + the exact commit object name the binary was built from. + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.15 +----------------- + + * "auto" as a value for the columnar output configuration ought to + judge "is the output consumed by humans?" with the same criteria as + "auto" for coloured output configuration, i.e. either the standard + output stream is going to tty, or a pager is in use. We forgot the + latter, which has been fixed. + + * The experimental "color moved lines differently in diff output" + feature was buggy around "ignore whitespace changes" edges, which + has been corrected. + + * Instead of using custom line comparison and hashing functions to + implement "moved lines" coloring in the diff output, use the pair + of these functions from lower-layer xdiff/ code. + + * Some codepaths did not check for errors when asking what branch the + HEAD points at, which have been fixed. + + * "git commit", after making a commit, did not check for errors when + asking on what branch it made the commit, which has been corrected. + + * "git status --ignored -u" did not stop at a working tree of a + separate project that is embedded in an ignored directory and + listed files in that other project, instead of just showing the + directory itself as ignored. + + * A broken access to object databases in recent update to "git grep + --recurse-submodules" has been fixed. + + * A recent regression in "git rebase -i" that broke execution of git + commands from subdirectories via "exec" instruction has been fixed. + + * A (possibly flakey) test fix. + + * "git check-ref-format --branch @{-1}" bit a "BUG()" when run + outside a repository for obvious reasons; clarify the documentation + and make sure we do not even try to expand the at-mark magic in + such a case, but still call the validation logic for branch names. + + * "git fetch --recurse-submodules" now knows that submodules can be + moved around in the superproject in addition to getting updated, + and finds the ones that need to be fetched accordingly. + + * Command line completion (in contrib/) update. + + * Description of blame.{showroot,blankboundary,showemail,date} + configuration variables have been added to "git config --help". + + * After an error from lstat(), diff_populate_filespec() function + sometimes still went ahead and used invalid data in struct stat, + which has been fixed. + + * UNC paths are also relevant in Cygwin builds and they are now + tested just like Mingw builds. + + * Correct start-up sequence so that a repository could be placed + immediately under the root directory again (which was broken at + around Git 2.13). + + * The credential helper for libsecret (in contrib/) has been improved + to allow possibly prompting the end user to unlock secrets that are + currently locked (otherwise the secrets may not be loaded). + + * MinGW updates. + + * Error checking in "git imap-send" for empty response has been + improved. + + * Recent update to the refs infrastructure implementation started + rewriting packed-refs file more often than before; this has been + optimized again for most trivial cases. + + * Some error messages did not quote filenames shown in it, which have + been fixed. + + * "git rebase -i" recently started misbehaving when a submodule that + is configured with 'submodule.<name>.ignore' is dirty; this has + been corrected. + + * Building with NO_LIBPCRE1_JIT did not disable it, which has been fixed. + + * We used to add an empty alternate object database to the system + that does not help anything; it has been corrected. + + * Doc update around use of "format-patch --subject-prefix" etc. + + * A fix for an ancient bug in "git apply --ignore-space-change" codepath. + + * Clarify and enhance documentation for "merge-base --fork-point", as + it was clear what it computed but not why/what for. + + * A few scripts (both in production and tests) incorrectly redirected + their error output. These have been corrected. + + * "git notes" sent its error message to its standard output stream, + which was corrected. + + * The three-way merge performed by "git cherry-pick" was confused + when a new submodule was added in the meantime, which has been + fixed (or "papered over"). + + * The sequencer machinery (used by "git cherry-pick A..B", and "git + rebase -i", among other things) would have lost a commit if stopped + due to an unlockable index file, which has been fixed. + + * "git apply --inaccurate-eof" when used with "--ignore-space-change" + triggered an internal sanity check, which has been fixed. + + * Command line completion (in contrib/) has been taught about the + "--copy" option of "git branch". + + * When "git rebase" prepared a mailbox of changes and fed it to "git + am" to replay them, it was confused when a stray "From " happened + to be in the log message of one of the replayed changes. This has + been corrected. + + * There was a recent semantic mismerge in the codepath to write out a + section of a configuration section, which has been corrected. + + * Mentions of "git-rebase" and "git-am" (dashed form) still remained + in end-user visible strings emitted by the "git rebase" command; + they have been corrected. + + * Contrary to the documentation, "git pull -4/-6 other-args" did not + ask the underlying "git fetch" to go over IPv4/IPv6, which has been + corrected. + + * "git checkout --recursive" may overwrite and rewind the history of + the branch that happens to be checked out in submodule + repositories, which might not be desirable. Detach the HEAD but + still allow the recursive checkout to succeed in such a case. + (merge 57f22bf997 sb/submodule-recursive-checkout-detach-head later to maint). + + * "git branch --set-upstream" has been deprecated and (sort of) + removed, as "--set-upstream-to" is the preferred one these days. + The documentation still had "--set-upstream" listed on its + synopsis section, which has been corrected. + (merge a060f3d3d8 tz/branch-doc-remove-set-upstream later to maint). + + * Internally we use 0{40} as a placeholder object name to signal the + codepath that there is no such object (e.g. the fast-forward check + while "git fetch" stores a new remote-tracking ref says "we know + there is no 'old' thing pointed at by the ref, as we are creating + it anew" by passing 0{40} for the 'old' side), and expect that a + codepath to locate an in-core object to return NULL as a sign that + the object does not exist. A look-up for an object that does not + exist however is quite costly with a repository with large number + of packfiles. This access pattern has been optimized. + (merge 87b5e236a1 jk/fewer-pack-rescan later to maint). + + * In addition to "git stash -m message", the command learned to + accept "git stash -mmessage" form. + (merge 5675473fcb ph/stash-save-m-option-fix later to maint). + + * @{-N} in "git checkout @{-N}" may refer to a detached HEAD state, + but the documentation was not clear about it, which has been fixed. + (merge 75ce149575 ks/doc-checkout-previous later to maint). + + * A regression in the progress eye-candy was fixed. + (merge 9c5951cacf jk/progress-delay-fix later to maint). + + * The code internal to the recursive merge strategy was not fully + prepared to see a path that is renamed to try overwriting another + path that is only different in case on case insensitive systems. + This does not matter in the current code, but will start to matter + once the rename detection logic starts taking hints from nearby + paths moving to some directory and moves a new path along with them. + (merge 4cba2b0108 en/merge-recursive-icase-removal later to maint). + + * An v2.12-era regression in pathspec match logic, which made it look + into submodule tree even when it is not desired, has been fixed. + (merge eef3df5a93 bw/pathspec-match-submodule-boundary later to maint). + + * Amending commits in git-gui broke the author name that is non-ascii + due to incorrect enconding conversion. + + * Recent update to the submodule configuration code broke "diff-tree" + by accidentally stopping to read from the index upfront. + (merge fd66bcc31f bw/submodule-config-cleanup later to maint). + + * Git shows a message to tell the user that it is waiting for the + user to finish editing when spawning an editor, in case the editor + opens to a hidden window or somewhere obscure and the user gets + lost. + (merge abfb04d0c7 ls/editor-waiting-message later to maint). + + * The "safe crlf" check incorrectly triggered for contents that does + not use CRLF as line endings, which has been corrected. + (merge 649f1f0948 tb/check-crlf-for-safe-crlf later to maint). + + * "git clone --shared" to borrow from a (secondary) worktree did not + work, even though "git clone --local" did. Both are now accepted. + (merge b3b05971c1 es/clone-shared-worktree later to maint). + + * The build procedure now allows not just the repositories but also + the refs to be used to take pre-formatted manpages and html + documents to install. + (merge 65289e9dcd rb/quick-install-doc later to maint). + + * Update the shell prompt script (in contrib/) to strip trailing CR + from strings read from various "state" files. + (merge 041fe8fc83 ra/prompt-eread-fix later to maint). + + * "git merge -s recursive" did not correctly abort when the index is + dirty, if the merged tree happened to be the same as the current + HEAD, which has been fixed. + + * Bytes with high-bit set were encoded incorrectly and made + credential helper fail. + (merge 4c267f2ae3 jd/fix-strbuf-add-urlencode-bytes later to maint). + + * "git rebase -p -X<option>" did not propagate the option properly + down to underlying merge strategy backend. + (merge dd6fb0053c js/fix-merge-arg-quoting-in-rebase-p later to maint). + + * "git merge -s recursive" did not correctly abort when the index is + dirty, if the merged tree happened to be the same as the current + HEAD, which has been fixed. + (merge f309e8e768 ew/empty-merge-with-dirty-index-maint later to maint). + + * Other minor doc, test and build updates and code cleanups. + (merge 1a1fc2d5b5 rd/man-prune-progress later to maint). + (merge 0ba014035a rd/man-reflog-add-n later to maint). + (merge e54b63359f rd/doc-notes-prune-fix later to maint). + (merge ff4c9b413a sp/doc-info-attributes later to maint). + (merge 7db2cbf4f1 jc/receive-pack-hook-doc later to maint). + (merge 5a0526264b tg/t-readme-updates later to maint). + (merge 5e83cca0b8 jk/no-optional-locks later to maint). + (merge 826c778f7c js/hashmap-update-sample later to maint). + (merge 176b2d328c sg/setup-doc-update later to maint). + (merge 1b09073514 rs/am-builtin-leakfix later to maint). + (merge addcf6cfde rs/fmt-merge-msg-string-leak-fix later to maint). + (merge c3ff8f6c14 rs/strbuf-read-once-reset-length later to maint). + (merge 6b0eb884f9 db/doc-workflows-neuter-the-maintainer later to maint). + (merge 8c87bdfb21 jk/cvsimport-quoting later to maint). + (merge 176cb979fe rs/fmt-merge-msg-leakfix later to maint). + (merge 5a03360e73 tb/delimit-pretty-trailers-args-with-comma later to maint). + (merge d0e6326026 ot/pretty later to maint). + (merge 44103f4197 sb/test-helper-excludes later to maint). + (merge 170078693f jt/transport-no-more-rsync later to maint). + (merge c07b3adff1 bw/path-doc later to maint). + (merge bf9d7df950 tz/lib-git-svn-svnserve-tests later to maint). + (merge dec366c9a8 sr/http-sslverify-config-doc later to maint). + (merge 3f824e91c8 jk/test-suite-tracing later to maint). + (merge 1feb061701 db/doc-config-section-names-with-bs later to maint). + (merge 74dea0e13c jh/memihash-opt later to maint). + (merge 2e9fdc795c ma/bisect-leakfix later to maint). diff --git a/Documentation/RelNotes/2.16.1.txt b/Documentation/RelNotes/2.16.1.txt new file mode 100644 index 0000000..66e6436 --- /dev/null +++ b/Documentation/RelNotes/2.16.1.txt @@ -0,0 +1,11 @@ +Git v2.16.1 Release Notes +========================= + +Fixes since v2.16 +----------------- + + * "git clone" segfaulted when cloning a project that happens to + track two paths that differ only in case on a case insensitive + filesystem. + +Does not contain any other documentation updates or code clean-ups. diff --git a/Documentation/RelNotes/2.16.2.txt b/Documentation/RelNotes/2.16.2.txt new file mode 100644 index 0000000..a216466 --- /dev/null +++ b/Documentation/RelNotes/2.16.2.txt @@ -0,0 +1,30 @@ +Git v2.16.2 Release Notes +========================= + +Fixes since v2.16.1 +------------------- + + * An old regression in "git describe --all $annotated_tag^0" has been + fixed. + + * "git svn dcommit" did not take into account the fact that a + svn+ssh:// URL with a username@ (typically used for pushing) refers + to the same SVN repository without the username@ and failed when + svn.pushmergeinfo option is set. + + * "git merge -Xours/-Xtheirs" learned to use our/their version when + resolving a conflicting updates to a symbolic link. + + * "git clone $there $here" is allowed even when here directory exists + as long as it is an empty directory, but the command incorrectly + removed it upon a failure of the operation. + + * "git stash -- <pathspec>" incorrectly blew away untracked files in + the directory that matched the pathspec, which has been corrected. + + * "git add -p" was taught to ignore local changes to submodules as + they do not interfere with the partial addition of regular changes + anyway. + + +Also contains various documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.16.3.txt b/Documentation/RelNotes/2.16.3.txt new file mode 100644 index 0000000..64a0bcb --- /dev/null +++ b/Documentation/RelNotes/2.16.3.txt @@ -0,0 +1,49 @@ +Git v2.16.3 Release Notes +========================= + +Fixes since v2.16.2 +------------------- + + * "git status" after moving a path in the working tree (hence making + it appear "removed") and then adding with the -N option (hence + making that appear "added") detected it as a rename, but did not + report the old and new pathnames correctly. + + * "git commit --fixup" did not allow "-m<message>" option to be used + at the same time; allow it to annotate resulting commit with more + text. + + * When resetting the working tree files recursively, the working tree + of submodules are now also reset to match. + + * Fix for a commented-out code to adjust it to a rather old API change + around object ID. + + * When there are too many changed paths, "git diff" showed a warning + message but in the middle of a line. + + * The http tracing code, often used to debug connection issues, + learned to redact potentially sensitive information from its output + so that it can be more safely sharable. + + * Crash fix for a corner case where an error codepath tried to unlock + what it did not acquire lock on. + + * The split-index mode had a few corner case bugs fixed. + + * Assorted fixes to "git daemon". + + * Completion of "git merge -s<strategy>" (in contrib/) did not work + well in non-C locale. + + * Workaround for segfault with more recent versions of SVN. + + * Recently introduced leaks in fsck have been plugged. + + * Travis CI integration now builds the executable in 'script' phase + to follow the established practice, rather than during + 'before_script' phase. This allows the CI categorize the failures + better ('failed' is project's fault, 'errored' is build + environment's). + +Also contains various documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.17.0.txt b/Documentation/RelNotes/2.17.0.txt new file mode 100644 index 0000000..d6db0e1 --- /dev/null +++ b/Documentation/RelNotes/2.17.0.txt @@ -0,0 +1,398 @@ +Git 2.17 Release Notes +====================== + +Updates since v2.16 +------------------- + +UI, Workflows & Features + + * "diff" family of commands learned "--find-object=<object-id>" option + to limit the findings to changes that involve the named object. + + * "git format-patch" learned to give 72-cols to diffstat, which is + consistent with other line length limits the subcommand uses for + its output meant for e-mails. + + * The log from "git daemon" can be redirected with a new option; one + relevant use case is to send the log to standard error (instead of + syslog) when running it from inetd. + + * "git rebase" learned to take "--allow-empty-message" option. + + * "git am" has learned the "--quit" option, in addition to the + existing "--abort" option; having the pair mirrors a few other + commands like "rebase" and "cherry-pick". + + * "git worktree add" learned to run the post-checkout hook, just like + "git clone" runs it upon the initial checkout. + + * "git tag" learned an explicit "--edit" option that allows the + message given via "-m" and "-F" to be further edited. + + * "git fetch --prune-tags" may be used as a handy short-hand for + getting rid of stale tags that are locally held. + + * The new "--show-current-patch" option gives an end-user facing way + to get the diff being applied when "git rebase" (and "git am") + stops with a conflict. + + * "git add -p" used to offer "/" (look for a matching hunk) as a + choice, even there was only one hunk, which has been corrected. + Also the single-key help is now given only for keys that are + enabled (e.g. help for '/' won't be shown when there is only one + hunk). + + * Since Git 1.7.9, "git merge" defaulted to --no-ff (i.e. even when + the side branch being merged is a descendant of the current commit, + create a merge commit instead of fast-forwarding) when merging a + tag object. This was appropriate default for integrators who pull + signed tags from their downstream contributors, but caused an + unnecessary merges when used by downstream contributors who + habitually "catch up" their topic branches with tagged releases + from the upstream. Update "git merge" to default to --no-ff only + when merging a tag object that does *not* sit at its usual place in + refs/tags/ hierarchy, and allow fast-forwarding otherwise, to + mitigate the problem. + + * "git status" can spend a lot of cycles to compute the relation + between the current branch and its upstream, which can now be + disabled with "--no-ahead-behind" option. + + * "git diff" and friends learned funcname patterns for Go language + source files. + + * "git send-email" learned "--reply-to=<address>" option. + + * Funcname pattern used for C# now recognizes "async" keyword. + + * In a way similar to how "git tag" learned to honor the pager + setting only in the list mode, "git config" learned to ignore the + pager setting when it is used for setting values (i.e. when the + purpose of the operation is not to "show"). + + +Performance, Internal Implementation, Development Support etc. + + * More perf tests for threaded grep + + * "perf" test output can be sent to codespeed server. + + * The build procedure for perl/ part has been greatly simplified by + weaning ourselves off of MakeMaker. + + * Perl 5.8 or greater has been required since Git 1.7.4 released in + 2010, but we continued to assume some core modules may not exist and + used a conditional "eval { require <<module>> }"; we no longer do + this. Some platforms (Fedora/RedHat/CentOS, for example) ship Perl + without all core modules by default (e.g. Digest::MD5, File::Temp, + File::Spec, Net::Domain, Net::SMTP). Users on such platforms may + need to install these additional modules. + + * As a convenience, we install copies of Perl modules we require which + are not part of the core Perl distribution (e.g. Error and + Mail::Address). Users and packagers whose operating system provides + these modules can set NO_PERL_CPAN_FALLBACKS to avoid installing the + bundled modules. + + * In preparation for implementing narrow/partial clone, the machinery + for checking object connectivity used by gc and fsck has been + taught that a missing object is OK when it is referenced by a + packfile specially marked as coming from trusted repository that + promises to make them available on-demand and lazily. + + * The machinery to clone & fetch, which in turn involves packing and + unpacking objects, has been told how to omit certain objects using + the filtering mechanism introduced by another topic. It now knows + to mark the resulting pack as a promisor pack to tolerate missing + objects, laying foundation for "narrow" clones. + + * The first step to getting rid of mru API and using the + doubly-linked list API directly instead. + + * Retire mru API as it does not give enough abstraction over + underlying list API to be worth it. + + * Rewrite two more "git submodule" subcommands in C. + + * The tracing machinery learned to report tweaking of environment + variables as well. + + * Update Coccinelle rules to catch and optimize strbuf_addf(&buf, "%s", str) + + * Prevent "clang-format" from breaking line after function return type. + + * The sequencer infrastructure is shared across "git cherry-pick", + "git rebase -i", etc., and has always spawned "git commit" when it + needs to create a commit. It has been taught to do so internally, + when able, by reusing the codepath "git commit" itself uses, which + gives performance boost for a few tens of percents in some sample + scenarios. + + * Push the submodule version of collision-detecting SHA-1 hash + implementation a bit harder on builders. + + * Avoid mmapping small files while using packed refs (especially ones + with zero size, which would cause later munmap() to fail). + + * Conversion from uchar[20] to struct object_id continues. + + * More tests for wildmatch functions. + + * The code to binary search starting from a fan-out table (which is + how the packfile is indexed with object names) has been refactored + into a reusable helper. + + * We now avoid using identifiers that clash with C++ keywords. Even + though it is not a goal to compile Git with C++ compilers, changes + like this help use of code analysis tools that targets C++ on our + codebase. + + * The executable is now built in 'script' phase in Travis CI integration, + to follow the established practice, rather than during 'before_script' + phase. This allows the CI categorize the failures better ('failed' + is project's fault, 'errored' is build environment's). + (merge 3c93b82920 sg/travis-build-during-script-phase later to maint). + + * Writing out the index file when the only thing that changed in it + is the untracked cache information is often wasteful, and this has + been optimized out. + + * Various pieces of Perl code we have have been cleaned up. + + * Internal API clean-up to allow write_locked_index() optionally skip + writing the in-core index when it is not modified. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.16 +----------------- + + * An old regression in "git describe --all $annotated_tag^0" has been + fixed. + + * "git status" after moving a path in the working tree (hence making + it appear "removed") and then adding with the -N option (hence + making that appear "added") detected it as a rename, but did not + report the old and new pathnames correctly. + + * "git svn dcommit" did not take into account the fact that a + svn+ssh:// URL with a username@ (typically used for pushing) refers + to the same SVN repository without the username@ and failed when + svn.pushmergeinfo option is set. + + * API clean-up around revision traversal. + + * "git merge -Xours/-Xtheirs" learned to use our/their version when + resolving a conflicting updates to a symbolic link. + + * "git clone $there $here" is allowed even when here directory exists + as long as it is an empty directory, but the command incorrectly + removed it upon a failure of the operation. + + * "git commit --fixup" did not allow "-m<message>" option to be used + at the same time; allow it to annotate resulting commit with more + text. + + * When resetting the working tree files recursively, the working tree + of submodules are now also reset to match. + + * "git stash -- <pathspec>" incorrectly blew away untracked files in + the directory that matched the pathspec, which has been corrected. + + * Instead of maintaining home-grown email address parsing code, ship + a copy of reasonably recent Mail::Address to be used as a fallback + in 'git send-email' when the platform lacks it. + (merge d60be8acab mm/send-email-fallback-to-local-mail-address later to maint). + + * "git add -p" was taught to ignore local changes to submodules as + they do not interfere with the partial addition of regular changes + anyway. + + * Avoid showing a warning message in the middle of a line of "git + diff" output. + (merge 4e056c989f nd/diff-flush-before-warning later to maint). + + * The http tracing code, often used to debug connection issues, + learned to redact potentially sensitive information from its output + so that it can be more safely sharable. + (merge 8ba18e6fa4 jt/http-redact-cookies later to maint). + + * Crash fix for a corner case where an error codepath tried to unlock + what it did not acquire lock on. + (merge 81fcb698e0 mr/packed-ref-store-fix later to maint). + + * The split-index mode had a few corner case bugs fixed. + (merge ae59a4e44f tg/split-index-fixes later to maint). + + * Assorted fixes to "git daemon". + (merge ed15e58efe jk/daemon-fixes later to maint). + + * Completion of "git merge -s<strategy>" (in contrib/) did not work + well in non-C locale. + (merge 7cc763aaa3 nd/list-merge-strategy later to maint). + + * Workaround for segfault with more recent versions of SVN. + (merge 7f6f75e97a ew/svn-branch-segfault-fix later to maint). + + * Plug recently introduced leaks in fsck. + (merge ba3a08ca0e jt/fsck-code-cleanup later to maint). + + * "git pull --rebase" did not pass verbosity setting down when + recursing into a submodule. + (merge a56771a668 sb/pull-rebase-submodule later to maint). + + * The way "git reset --hard" reports the commit the updated HEAD + points at is made consistent with the way how the commit title is + generated by the other parts of the system. This matters when the + title is spread across physically multiple lines. + (merge 1cf823fb68 tg/reset-hard-show-head-with-pretty later to maint). + + * Test fixes. + (merge 63b1a175ee sg/test-i18ngrep later to maint). + + * Some bugs around "untracked cache" feature have been fixed. This + will notice corrupt data in the untracked cache left by old and + buggy code and issue a warning---the index can be fixed by clearing + the untracked cache from it. + (merge 0cacebf099 nd/fix-untracked-cache-invalidation later to maint). + (merge 7bf0be7501 ab/untracked-cache-invalidation-docs later to maint). + + * "git blame HEAD COPYING" in a bare repository failed to run, while + "git blame HEAD -- COPYING" run just fine. This has been corrected. + + * "git add" files in the same directory, but spelling the directory + path in different cases on case insensitive filesystem, corrupted + the name hash data structure and led to unexpected results. This + has been corrected. + (merge c95525e90d bp/name-hash-dirname-fix later to maint). + + * "git rebase -p" mangled log messages of a merge commit, which is + now fixed. + (merge ed5144d7eb js/fix-merge-arg-quoting-in-rebase-p later to maint). + + * Some low level protocol codepath could crash when they get an + unexpected flush packet, which is now fixed. + (merge bb1356dc64 js/packet-read-line-check-null later to maint). + + * "git check-ignore" with multiple paths got confused when one is a + file and the other is a directory, which has been fixed. + (merge d60771e930 rs/check-ignore-multi later to maint). + + * "git describe $garbage" stopped giving any errors when the garbage + happens to be a string with 40 hexadecimal letters. + (merge a8e7a2bf0f sb/describe-blob later to maint). + + * Code to unquote single-quoted string (used in the parser for + configuration files, etc.) did not diagnose bogus input correctly + and produced bogus results instead. + (merge ddbbf8eb25 jk/sq-dequote-on-bogus-input later to maint). + + * Many places in "git apply" knew that "/dev/null" that signals + "there is no such file on this side of the diff" can be followed by + whitespace and garbage when parsing a patch, except for one, which + made an otherwise valid patch (e.g. ones from subversion) rejected. + (merge e454ad4bec tk/apply-dev-null-verify-name-fix later to maint). + + * We no longer create any *.spec file, so "make clean" should not + remove it. + (merge 4321bdcabb tz/do-not-clean-spec-file later to maint). + + * "git push" over http transport did not unquote the push-options + correctly. + (merge 90dce21eb0 jk/push-options-via-transport-fix later to maint). + + * "git send-email" learned to complain when the batch-size option is + not defined when the relogin-delay option is, since these two are + mutually required. + (merge 9caa70697b xz/send-email-batch-size later to maint). + + * Y2k20 fix ;-) for our perl scripts. + (merge a40e06ee33 bw/perl-timegm-timelocal-fix later to maint). + + * Threaded "git grep" has been optimized to avoid allocation in code + section that is covered under a mutex. + (merge 38ef24dccf rv/grep-cleanup later to maint). + + * "git subtree" script (in contrib/) scripted around "git log", whose + output got affected by end-user configuration like log.showsignature + (merge 8841b5222c sg/subtree-signed-commits later to maint). + + * While finding unique object name abbreviation, the code may + accidentally have read beyond the end of the array of object names + in a pack. + (merge 21abed500c ds/find-unique-abbrev-optim later to maint). + + * Micro optimization in revision traversal code. + (merge ebbed3ba04 ds/mark-parents-uninteresting-optim later to maint). + + * "git commit" used to run "gc --auto" near the end, which was lost + when the command was reimplemented in C by mistake. + (merge 095c741edd ab/gc-auto-in-commit later to maint). + + * Allow running a couple of tests with "sh -x". + (merge c20bf94abc sg/cvs-tests-with-x later to maint). + + * The codepath to replace an existing entry in the index had a bug in + updating the name hash structure, which has been fixed. + (merge 0e267b7a24 bp/refresh-cache-ent-rehash-fix later to maint). + + * The transfer.fsckobjects configuration tells "git fetch" to + validate the data and connected-ness of objects in the received + pack; the code to perform this check has been taught about the + narrow clone's convention that missing objects that are reachable + from objects in a pack that came from a promissor remote is OK. + + * There was an unused file-scope static variable left in http.c when + building for versions of libCURL that is older than 7.19.4, which + has been fixed. + (merge b8fd6008ec rj/http-code-cleanup later to maint). + + * Shell script portability fix. + (merge 206a6ae013 ml/filter-branch-portability-fix later to maint). + + * Other minor doc, test and build updates and code cleanups. + (merge e2a5a028c7 bw/oidmap-autoinit later to maint). + (merge ec3b4b06f8 cl/t9001-cleanup later to maint). + (merge e1b3f3dd38 ks/submodule-doc-updates later to maint). + (merge fbac558a9b rs/describe-unique-abbrev later to maint). + (merge 8462ff43e4 tb/crlf-conv-flags later to maint). + (merge 7d68bb0766 rb/hashmap-h-compilation-fix later to maint). + (merge 3449847168 cc/sha1-file-name later to maint). + (merge ad622a256f ds/use-get-be64 later to maint). + (merge f919ffebed sg/cocci-move-array later to maint). + (merge 4e801463c7 jc/mailinfo-cleanup-fix later to maint). + (merge ef5b3a6c5e nd/shared-index-fix later to maint). + (merge 9f5258cbb8 tz/doc-show-defaults-to-head later to maint). + (merge b780e4407d jc/worktree-add-short-help later to maint). + (merge ae239fc8e5 rs/cocci-strbuf-addf-to-addstr later to maint). + (merge 2e22a85e5c nd/ignore-glob-doc-update later to maint). + (merge 3738031581 jk/gettext-poison later to maint). + (merge 54360a1956 rj/sparse-updates later to maint). + (merge 12e31a6b12 sg/doc-test-must-fail-args later to maint). + (merge 760f1ad101 bc/doc-interpret-trailers-grammofix later to maint). + (merge 4ccf461f56 bp/fsmonitor later to maint). + (merge a6119f82b1 jk/test-hashmap-updates later to maint). + (merge 5aea9fe6cc rd/typofix later to maint). + (merge e4e5da2796 sb/status-doc-fix later to maint). + (merge 7976e901c8 gs/test-unset-xdg-cache-home later to maint). + (merge d023df1ee6 tg/worktree-create-tracking later to maint). + (merge 4cbe92fd41 sm/mv-dry-run-update later to maint). + (merge 75e5e9c3f7 sb/color-h-cleanup later to maint). + (merge 2708ef4af6 sg/t6300-modernize later to maint). + (merge d88e92d4e0 bw/doc-submodule-recurse-config-with-clone later to maint). + (merge f74bbc8dd2 jk/cached-commit-buffer later to maint). + (merge 1316416903 ms/non-ascii-ticks later to maint). + (merge 878056005e rs/strbuf-read-file-or-whine later to maint). + (merge 79f0ba1547 jk/strbuf-read-file-close-error later to maint). + (merge edfb8ba068 ot/ref-filter-cleanup later to maint). + (merge 11395a3b4b jc/test-must-be-empty later to maint). + (merge 768b9d6db7 mk/doc-pretty-fill later to maint). + (merge 2caa7b8d27 ab/man-sec-list later to maint). + (merge 40c17eb184 ks/t3200-typofix later to maint). + (merge bd9958c358 dp/merge-strategy-doc-fix later to maint). + (merge 9ee0540a40 js/ming-strftime later to maint). + (merge 1775e990f7 tz/complete-tag-delete-tagname later to maint). + (merge 00a4b03501 rj/warning-uninitialized-fix later to maint). + (merge b635ed97a0 jk/attributes-path-doc later to maint). diff --git a/Documentation/RelNotes/2.18.0.txt b/Documentation/RelNotes/2.18.0.txt new file mode 100644 index 0000000..31c3f6d --- /dev/null +++ b/Documentation/RelNotes/2.18.0.txt @@ -0,0 +1,200 @@ +Git 2.18 Release Notes +====================== + +Updates since v2.17 +------------------- + +UI, Workflows & Features + + * Rename detection logic in "diff" family that is used in "merge" has + learned to guess when all of x/a, x/b and x/c have moved to z/a, + z/b and z/c, it is likely that x/d added in the meantime would also + want to move to z/d by taking the hint that the entire directory + 'x' moved to 'z'. A bug causing dirty files involved in a rename + to be overwritten during merge has also been fixed as part of this + work. + + * "git filter-branch" learned to use a different exit code to allow + the callers to tell the case where there was no new commits to + rewrite from other error cases. + + * When built with more recent cURL, GIT_SSL_VERSION can now specify + "tlsv1.3" as its value. + + * "git gui" learned that "~/.ssh/id_ecdsa.pub" and + "~/.ssh/id_ed25519.pub" are also possible SSH key files. + (merge 2e2f0288ef bb/git-gui-ssh-key-files later to maint). + + * "git gui" performs commit upon CTRL/CMD+ENTER but the + CTRL/CMD+KP_ENTER (i.e. enter key on the numpad) did not have the + same key binding. It now does. + (merge 28a1d94a06 bp/git-gui-bind-kp-enter later to maint). + + * "git gui" has been taught to work with old versions of tk (like + 8.5.7) that do not support "ttk::style theme use" as a way to query + the current theme. + (merge 4891961105 cb/git-gui-ttk-style later to maint). + + * "git rebase" has learned to honor "--signoff" option when using + backends other than "am" (but not "--preserve-merges"). + + * "git branch --list" during an interrupted "rebase -i" now lets + users distinguish the case where a detached HEAD is being rebased + and a normal branch is being rebased. + + * "git mergetools" learned talking to guiffy. + + +Performance, Internal Implementation, Development Support etc. + + * A "git fetch" from a repository with insane number of refs into a + repository that is already up-to-date still wasted too many cycles + making many lstat(2) calls to see if these objects at the tips + exist as loose objects locally. These lstat(2) calls are optimized + away by enumerating all loose objects beforehand. + It is unknown if the new strategy negatively affects existing use + cases, fetching into a repository with many loose objects from a + repository with small number of refs. + + * Git can be built to use either v1 or v2 of the PCRE library, and so + far, the build-time configuration USE_LIBPCRE=YesPlease instructed + the build procedure to use v1, but now it means v2. USE_LIBPCRE1 + and USE_LIBPCRE2 can be used to explicitly choose which version to + use, as before. + + * The build procedure learned to optionally use symbolic links + (instead of hardlinks and copies) to install "git-foo" for built-in + commands, whose binaries are all identical. + + * Conversion from uchar[20] to struct object_id continues. + + * The way "git worktree prune" worked internally has been simplified, + by assuming how "git worktree move" moves an existing worktree to a + different place. + + * Code clean-up for the "repository" abstraction. + (merge 00a3da2a13 nd/remove-ignore-env-field later to maint). + + * Code to find the length to uniquely abbreviate object names based + on packfile content, which is a relatively recent addtion, has been + optimized to use the same fan-out table. + + * The mechanism to use parse-options API to automate the command line + completion continues to get extended and polished. + + * Copies of old scripted Porcelain commands in contrib/examples/ have + been removed. + + * Some tests that rely on the exact hardcoded values of object names + have been updated in preparation for hash function migration. + + * Perf-test update. + + * Test helper update. + + * The effort continues to refactor the internal global data structure + to make it possible to open multiple repositories, work with and + then close them, + + * Small test-helper programs have been consolidated into a single + binary. + + * API clean-up around ref-filter code. + + * Shell completion (in contrib) that gives list of paths have been + optimized somewhat. + + * The index file is updated to record the fsmonitor section after a + full scan was made, to avoid wasting the effort that has already + spent. + + * Performance measuring framework in t/perf learned to help bisecting + performance regressions. + + * Some multi-word source filenames are being renamed to separate + words with dashes instead of underscores. + + * An reusable "memory pool" implementation has been extracted from + fast-import.c, which in turn has become the first user of the + mem-pool API. + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.17 +----------------- + + * "git shortlog cruft" aborted with a BUG message when run outside a + Git repository. The command has been taught to complain about + extra and unwanted arguments on its command line instead in such a + case. + (merge 4aa0161e83 ma/shortlog-revparse later to maint). + + * "git stash push -u -- <pathspec>" gave an unnecessary and confusing + error message when there was no tracked files that match the + <pathspec>, which has been fixed. + (merge 353278687e tg/stash-untracked-with-pathspec-fix later to maint). + + * "git tag --contains no-such-commit" gave a full list of options + after giving an error message. + (merge 3bb0923f06 ps/contains-id-error-message later to maint). + + * "diff-highlight" filter (in contrib/) learned to undertand "git log + --graph" output better. + (merge 4551fbba14 jk/diff-highlight-graph-fix later to maint). + + * when refs that do not point at committish are given, "git + filter-branch" gave a misleading error messages. This has been + corrected. + (merge f78ab355e7 yk/filter-branch-non-committish-refs later to maint). + + * "git submodule status" misbehaved on a submodule that has been + removed from the working tree. + (merge 74b6bda32f rs/status-with-removed-submodule later to maint). + + * When credential helper exits very quickly without reading its + input, it used to cause Git to die with SIGPIPE, which has been + fixed. + (merge a0d51e8d0e eb/cred-helper-ignore-sigpipe later to maint). + + * "git rebase --keep-empty" still removed an empty commit if the + other side contained an empty commit (due to the "does an + equivalent patch exist already?" check), which has been corrected. + (merge 3d946165e1 pw/rebase-keep-empty-fixes later to maint). + + * Some codepaths, including the refs API, get and keep relative + paths, that go out of sync when the process does chdir(2). The + chdir-notify API is introduced to let these codepaths adjust these + cached paths to the new current directory. + (merge fb9c2d2703 jk/relative-directory-fix later to maint). + + * "cd sub/dir && git commit ../path" ought to record the changes to + the file "sub/path", but this regressed long time ago. + (merge 86238e07ef bw/commit-partial-from-subdirectory-fix later to maint). + + * Recent introduction of "--log-destination" option to "git daemon" + did not work well when the daemon was run under "--inetd" mode. + (merge e67d906d73 lw/daemon-log-destination later to maint). + + * Small fix to the autoconf build procedure. + (merge 249482daf0 es/fread-reads-dir-autoconf-fix later to maint). + + * Fix an unexploitable (because the oversized contents are not under + attacker's control) buffer overflow. + (merge d8579accfa bp/fsmonitor-bufsize-fix later to maint). + + * Other minor doc, test and build updates and code cleanups. + (merge 248f66ed8e nd/trace-with-env later to maint). + (merge 14ced5562c ys/bisect-object-id-missing-conversion-fix later to maint). + (merge 5988eb631a ab/doc-hash-brokenness later to maint). + (merge a4d4e32a70 pk/test-avoid-pipe-hiding-exit-status later to maint). + (merge 05e293c1ac jk/flockfile-stdio later to maint). + (merge e9184b0789 jk/t5561-missing-curl later to maint). + (merge b1801b85a3 nd/worktree-move later to maint). + (merge bbd374dd20 ak/bisect-doc-typofix later to maint). + (merge 4855f06fb3 mn/send-email-credential-doc later to maint). + (merge 8523b1e355 en/doc-typoes later to maint). + (merge 43b44ccfe7 js/t5404-path-fix later to maint). + (merge decf711fc1 ps/test-chmtime-get later to maint). + (merge 22d11a6e8e es/worktree-docs later to maint). + (merge 92a5dbbc22 tg/use-git-contacts later to maint). |