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2017-06-15alias: use the early config machinery to expand aliasesJohannes Schindelin
Instead of discovering the .git/ directory, reading the config and then trying to painstakingly reset all the global state if we did not find a matching alias, let's use the early config machinery instead. It may look like unnecessary work to discover the .git/ directory in the early config machinery and then call setup_git_directory_gently() in the case of a shell alias, repeating the very same discovery *again*. However, we have to do this as the early config machinery takes pains *not* to touch any global state, while shell aliases expect a possibly changed working directory and at least the GIT_PREFIX and GIT_DIR variables to be set. This change also fixes a known issue where Git tried to read the pager config from an incorrect path in a subdirectory of a Git worktree if an alias expanded to a shell command. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15t7006: demonstrate a problem with aliases in subdirectoriesJohannes Schindelin
When expanding aliases, the git_dir is set during the alias expansion (by virtue of running setup_git_directory_gently()). This git_dir may be relative to the current working directory, and indeed often is simply ".git/". When the alias expands to a shell command, we restore the original working directory, though, yet we do not reset git_dir. As a consequence, subsequent read_early_config() runs will mistake the git_dir to be populated properly and not find the correct config. Demonstrate this problem by adding a test case. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15t1308: relax the test verifying that empty alias values are disallowedJohannes Schindelin
We are about to change the way aliases are expanded, to use the early config machinery. This machinery reports errors in a slightly different manner than the cached config machinery. Let's not get hung up by the precise wording of the message mentioning the line number. It is really sufficient to verify that all the relevant information is given to the user. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15help: use early config when autocorrecting aliasesJohannes Schindelin
Git has this feature which suggests similar commands (including aliases) in case the user specified an unknown command. This feature currently relies on a side effect of the way we expand aliases right now: when a command is not a builtin, we use the regular config machinery (meaning: discovering the .git/ directory and initializing global state such as the config cache) to see whether the command refers to an alias. However, we will change the way aliases are expanded in the next commits, to use the early config instead. That means that the autocorrect feature can no longer discover the available aliases by looking at the config cache (because it has not yet been initialized). So let's just use the early config machinery instead. This is slightly less performant than the previous way, as the early config is used *twice*: once to see whether the command refers to an alias, and then to see what aliases are most similar. However, this is hardly a performance-critical code path, so performance is less important here. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15config: report correct line number upon errorJohannes Schindelin
When get_value() parses a key/value pair, it is possible that the line number is decreased (because the \n has been consumed already) before the key/value pair is passed to the callback function, to allow for the correct line to be attributed in case of an error. However, when git_parse_source() asks get_value() to parse the key/value pair, the error reporting is performed *after* get_value() returns. Which means that we have to be careful not to increase the line number in get_value() after the callback function returned an error. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15discover_git_directory(): avoid setting invalid git_dirJohannes Schindelin
When discovering a .git/ directory, we take pains to ensure that its repository format version matches Git's expectations, and we return NULL otherwise. However, we still appended the invalid path to the strbuf passed as argument. Let's just reset the strbuf to the state before we appended the .git/ directory that was eventually rejected. There is another early return path in that function, when setup_git_directory_gently_1() returns GIT_DIR_NONE or an error. In that case, the gitdir parameter has not been touched, therefore there is no need for an equivalent change in that code path. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15diff-highlight: split code into moduleJeff King
The diff-so-fancy project is also written in perl, and most of its users pipe diffs through both diff-highlight and diff-so-fancy. It would be nice if this could be done in a single script. So let's pull most of diff-highlight's code into its own module which can be used by diff-so-fancy. In addition, we'll abstract a few basic items like reading from stdio so that a script using the module can do more processing before or after diff-highlight handles the lines. See the README update for more details. One small downside is that the diff-highlight script must now be built using the Makefile. There are ways around this, but it quickly gets into perl arcana. Let's go with the simple solution. As a bonus, our Makefile now respects the PERL_PATH variable if it is set. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15pretty: recalculate duplicate short hashesRené Scharfe
b9c6232138 (--format=pretty: avoid calculating expensive expansions twice) optimized adding short hashes multiple times by using the fact that the output strbuf was only ever simply appended to and copying the added string from the previous run. That prerequisite is no longer given; we now have modfiers like %< and %+ that can cause the cache to lose track of the correct offsets. Remove it. Reported-by: Michael Giuffrida <michaelpg@chromium.org> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15doc: do not use `rm .git/index` when normalizing line endingsAndreas Heiduk
When illustrating how to normalize the line endings, the documentation in gitattributes tells the user to `rm .git/index`. This is incorrect for two reasons: - Users shouldn't be instructed to mess around with the internal implementation of Git using raw file system tools like `rm`. - Within a submodule or an additional working tree `.git` is just a file containing a `gitdir: <path>` pointer into the real `.git` directory. Therefore `rm .git/index` does not work. The purpose of the `rm .git/index` instruction is to remove all entries from the index without touching the working tree. The way to do this with Git is to use `read-tree --empty`. Signed-off-by: Andreas Heiduk <asheiduk@gmail.com> Helped-by: Junio C Hamano <gitster@pobox.com> Helped-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15t: move "git add submodule" into test blocksJeff King
Some submodule tests do some setup outside of a test_expect block. This is bad because we won't actually check the outcome of those commands. But it's doubly so because "git add submodule" now produces a warning to stderr, which is not suppressed by the test scripts in non-verbose mode. This patch does the minimal to fix the annoying warnings. All three of these scripts could use more cleanup of related setup. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15add: warn when adding an embedded repositoryJeff King
It's an easy mistake to add a repository inside another repository, like: git clone $url git add . The resulting entry is a gitlink, but there's no matching .gitmodules entry. Trying to use "submodule init" (or clone with --recursive) doesn't do anything useful. Prior to v2.13, such an entry caused git-submodule to barf entirely. In v2.13, the entry is considered "inactive" and quietly ignored. Either way, no clone of your repository can do anything useful with the gitlink without the user manually adding the submodule config. In most cases, the user probably meant to either add a real submodule, or they forgot to put the embedded repository in their .gitignore file. Let's issue a warning when we see this case. There are a few things to note: - the warning will go in the git-add porcelain; anybody wanting to do low-level manipulation of the index is welcome to create whatever funny states they want. - we detect the case by looking for a newly added gitlink; updates via "git add submodule" are perfectly reasonable, and this avoids us having to investigate .gitmodules entirely - there's a command-line option to suppress the warning. This is needed for git-submodule itself (which adds the entry before adding any submodule config), but also provides a mechanism for other scripts doing submodule-like things. We could make this a hard error instead of a warning. However, we do add lots of sub-repos in our test suite. It's not _wrong_ to do so. It just creates a state where users may be surprised. Pointing them in the right direction with a gentle hint is probably the best option. There is a config knob that can disable the (long) hint. But I intentionally omitted a config knob to disable the warning entirely. Whether the warning is sensible or not is generally about context, not about the user's preferences. If there's a tool or workflow that adds gitlinks without matching .gitmodules, it should probably be taught about the new command-line option, rather than blanket-disabling the warning. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15git-svn: document special options for commit-diffAndreas Heiduk
Some options specific for `git svn commit-diff` where not documented so far. Signed-off-by: Andreas Heiduk <asheiduk@gmail.com> Signed-off-by: Eric Wong <e@80x24.org>
2017-06-13Sync with maintJunio C Hamano
2017-06-13Eighth batch for 2.14Junio C Hamano
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13Merge branch 'jk/pack-idx-corruption-safety'Junio C Hamano
A flaky test has been corrected. * jk/pack-idx-corruption-safety: t5313: make extended-table test more deterministic
2017-06-13Merge branch 'nd/fopen-errors'Junio C Hamano
We often try to open a file for reading whose existence is optional, and silently ignore errors from open/fopen; report such errors if they are not due to missing files. * nd/fopen-errors: mingw_fopen: report ENOENT for invalid file names mingw: verify that paths are not mistaken for remote nicknames log: fix memory leak in open_next_file() rerere.c: move error_errno() closer to the source system call print errno when reporting a system call error wrapper.c: make warn_on_inaccessible() static wrapper.c: add and use fopen_or_warn() wrapper.c: add and use warn_on_fopen_errors() config.mak.uname: set FREAD_READS_DIRECTORIES for Darwin, too config.mak.uname: set FREAD_READS_DIRECTORIES for Linux and FreeBSD clone: use xfopen() instead of fopen() use xfopen() in more places git_fopen: fix a sparse 'not declared' warning
2017-06-13Merge branch 'rf/completion'Junio C Hamano
Completion updates. * rf/completion: completion: add git config credentialCache.ignoreSIGHUP completion: add git config credential completions completion: add git config advice completions completion: add git config am.threeWay completion completion: add git config core completions completion: add git config gc completions
2017-06-13Merge branch 'jc/diff-tree-stale-comment'Junio C Hamano
Comment fix. * jc/diff-tree-stale-comment: diff-tree: update stale in-code comments
2017-06-13Merge branch 'sb/submodule-blanket-recursive'Junio C Hamano
Many commands learned to pay attention to submodule.recurse configuration. * sb/submodule-blanket-recursive: builtin/fetch.c: respect 'submodule.recurse' option builtin/push.c: respect 'submodule.recurse' option builtin/grep.c: respect 'submodule.recurse' option Introduce 'submodule.recurse' option for worktree manipulators submodule loading: separate code path for .gitmodules and config overlay reset/checkout/read-tree: unify config callback for submodule recursion submodule test invocation: only pass additional arguments submodule recursing: do not write a config variable twice
2017-06-13Merge branch 'jc/noent-notdir'Junio C Hamano
Our code often opens a path to an optional file, to work on its contents when we can successfully open it. We can ignore a failure to open if such an optional file does not exist, but we do want to report a failure in opening for other reasons (e.g. we got an I/O error, or the file is there, but we lack the permission to open). The exact errors we need to ignore are ENOENT (obviously) and ENOTDIR (less obvious). Instead of repeating comparison of errno with these two constants, introduce a helper function to do so. * jc/noent-notdir: treewide: use is_missing_file_error() where ENOENT and ENOTDIR are checked compat-util: is_missing_file_error()
2017-06-13Prepare for 2.13.2Junio C Hamano
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13Merge branch 'ad/pull-remote-doc' into maintJunio C Hamano
Docfix. * ad/pull-remote-doc: docs: fix formatting and grammar
2017-06-13Merge branch 'jk/drop-free-refspecs' into maintJunio C Hamano
Code clean-up. * jk/drop-free-refspecs: remote: drop free_refspecs() function
2017-06-13Merge branch 'jk/connect-symref-info-leak-fix' into maintJunio C Hamano
Leakfix. * jk/connect-symref-info-leak-fix: connect.c: fix leak in parse_one_symref_info()
2017-06-13Merge branch 'rf/completion-config-commit' into maintJunio C Hamano
Completion update. * rf/completion-config-commit: completion: add completions for git config commit
2017-06-13Merge branch 'ab/t3070-test-dedup' into maintJunio C Hamano
Test cleanup. * ab/t3070-test-dedup: wildmatch test: remove redundant duplicate test
2017-06-13Merge branch 'jh/memihash-opt' into maintJunio C Hamano
perf-test update. * jh/memihash-opt: p0004: don't error out if test repo is too small p0004: don't abort if multi-threaded is too slow p0004: use test_perf p0004: avoid using pipes p0004: simplify calls of test-lazy-init-name-hash
2017-06-13Merge branch 'tb/pull-ff-rebase-autostash' into maintJunio C Hamano
"git pull --rebase --autostash" didn't auto-stash when the local history fast-forwards to the upstream. * tb/pull-ff-rebase-autostash: pull: ff --rebase --autostash works in dirty repo
2017-06-13Merge branch 'jh/close-index-before-stat' into maintJunio C Hamano
The timestamp of the index file is now taken after the file is closed, to help Windows, on which a stale timestamp is reported by fstat() on a file that is opened for writing and data was written but not yet closed. * jh/close-index-before-stat: read-cache: close index.lock in do_write_index
2017-06-13Merge branch 'sl/clean-d-ignored-fix' into maintJunio C Hamano
"git clean -d" used to clean directories that has ignored files, even though the command should not lose ignored ones without "-x". "git status --ignored" did not list ignored and untracked files without "-uall". These have been corrected. * sl/clean-d-ignored-fix: clean: teach clean -d to preserve ignored paths dir: expose cmp_name() and check_contains() dir: hide untracked contents of untracked dirs dir: recurse into untracked dirs for ignored files t7061: status --ignored should search untracked dirs t7300: clean -d should skip dirs with ignored files
2017-06-13Merge branch 'dk/send-email-avoid-net-smtp-ssl-when-able' into maintJunio C Hamano
A hotfix to a topic in 'master'. * dk/send-email-avoid-net-smtp-ssl-when-able: send-email: Net::SMTP::starttls was introduced in v2.34 send-email: Net::SMTP::SSL is obsolete, use only when necessary
2017-06-13Merge branch 'jc/skip-test-in-the-middle' into maintJunio C Hamano
A recent update to t5545-push-options.sh started skipping all the tests in the script when a web server testing is disabled or unavailable, not just the ones that require a web server. Non HTTP tests have been salvaged to always run in this script. * jc/skip-test-in-the-middle: t5545: enhance test coverage when no http server is installed test: allow skipping the remainder
2017-06-13Merge branch 'bw/forking-and-threading' into maintJunio C Hamano
The "run-command" API implementation has been made more robust against dead-locking in a threaded environment. * bw/forking-and-threading: usage.c: drop set_error_handle() run-command: restrict PATH search to executable files run-command: expose is_executable function run-command: block signals between fork and execve run-command: add note about forking and threading run-command: handle dup2 and close errors in child run-command: eliminate calls to error handling functions in child run-command: don't die in child when duping /dev/null run-command: prepare child environment before forking string-list: add string_list_remove function run-command: use the async-signal-safe execv instead of execvp run-command: prepare command before forking t0061: run_command executes scripts without a #! line t5550: use write_script to generate post-update hook
2017-06-13Merge branch 'jk/bug-to-abort' into maintJunio C Hamano
Introduce the BUG() macro to improve die("BUG: ..."). * jk/bug-to-abort: usage: add NORETURN to BUG() function definitions config: complain about --local outside of a git repo setup_git_env: convert die("BUG") to BUG() usage.c: add BUG() function
2017-06-13Merge branch 'sb/checkout-recurse-submodules' into maintJunio C Hamano
"git checkout --recurse-submodules" did not quite work with a submodule that itself has submodules. * sb/checkout-recurse-submodules: submodule: properly recurse for read-tree and checkout submodule: avoid auto-discovery in new working tree manipulator code submodule_move_head: reuse child_process structure for futher commands
2017-06-13ls-files: factor out tag calculationBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13ls-files: factor out debug info into a functionBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13ls-files: convert show_files to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13ls-files: convert show_ce_entry to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13ls-files: convert prune_cache to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13ls-files: convert ce_excluded to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13ls-files: convert show_ru_info to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13ls-files: convert show_other_files to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13ls-files: convert show_killed_files to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13ls-files: convert write_eolinfo to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13ls-files: convert overlay_tree_on_cache to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13tree: convert read_tree to take an index parameterBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13convert: convert renormalize_buffer to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13convert: convert convert_to_git to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13convert: convert convert_to_git_filter_fd to take an indexBrandon Williams
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>