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2017-05-29Merge branch 'js/plug-leaks'Libravatar Junio C Hamano1-1/+4
Fix memory leaks pointed out by Coverity (and people). * js/plug-leaks: (26 commits) checkout: fix memory leak submodule_uses_worktrees(): plug memory leak show_worktree(): plug memory leak name-rev: avoid leaking memory in the `deref` case remote: plug memory leak in match_explicit() add_reflog_for_walk: avoid memory leak shallow: avoid memory leak line-log: avoid memory leak receive-pack: plug memory leak in update() fast-export: avoid leaking memory in handle_tag() mktree: plug memory leaks reported by Coverity pack-redundant: plug memory leak setup_discovered_git_dir(): plug memory leak setup_bare_git_dir(): help static analysis split_commit_in_progress(): simplify & fix memory leak checkout: fix memory leak cat-file: fix memory leak mailinfo & mailsplit: check for EOF while parsing status: close file descriptor after reading git-rebase-todo difftool: address a couple of resource/memory leaks ...
2017-05-16Merge branch 'js/larger-timestamps'Libravatar Junio C Hamano1-1/+1
Some platforms have ulong that is smaller than time_t, and our historical use of ulong for timestamp would mean they cannot represent some timestamp that the platform allows. Invent a separate and dedicated timestamp_t (so that we can distingiuish timestamps and a vanilla ulongs, which along is already a good move), and then declare uintmax_t is the type to be used as the timestamp_t. * js/larger-timestamps: archive-tar: fix a sparse 'constant too large' warning use uintmax_t for timestamps date.c: abort if the system time cannot handle one of our timestamps timestamp_t: a new data type for timestamps PRItime: introduce a new "printf format" for timestamps parse_timestamp(): specify explicitly where we parse timestamps t0006 & t5000: skip "far in the future" test when time_t is too limited t0006 & t5000: prepare for 64-bit timestamps ref-filter: avoid using `unsigned long` for catch-all data type
2017-05-08git_config_rename_section_in_file(): avoid resource leakLibravatar Johannes Schindelin1-1/+4
In case of errors, we really want the file descriptor to be closed. Discovered by a Coverity scan. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-27timestamp_t: a new data type for timestampsLibravatar Johannes Schindelin1-1/+1
Git's source code assumes that unsigned long is at least as precise as time_t. Which is incorrect, and causes a lot of problems, in particular where unsigned long is only 32-bit (notably on Windows, even in 64-bit versions). So let's just use a more appropriate data type instead. In preparation for this, we introduce the new `timestamp_t` data type. By necessity, this is a very, very large patch, as it has to replace all timestamps' data type in one go. As we will use a data type that is not necessarily identical to `time_t`, we need to be very careful to use `time_t` whenever we interact with the system functions, and `timestamp_t` everywhere else. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-26Merge branch 'nd/conditional-config-in-early-config'Libravatar Junio C Hamano1-20/+42
The recently introduced conditional inclusion of configuration did not work well when early-config mechanism was involved. * nd/conditional-config-in-early-config: config: correct file reading order in read_early_config() config: handle conditional include when $GIT_DIR is not set up config: prepare to pass more info in git_config_with_options()
2017-04-23Merge branch 'nd/conditional-config-include'Libravatar Junio C Hamano1-6/+6
$GIT_DIR may in some cases be normalized with all symlinks resolved while "gitdir" path expansion in the pattern does not receive the same treatment, leading to incorrect mismatch. This has been fixed. * nd/conditional-config-include: config: resolve symlinks in conditional include's patterns path.c: and an option to call real_path() in expand_user_path()
2017-04-19config: correct file reading order in read_early_config()Libravatar Nguyễn Thái Ngọc Duy1-14/+12
Config file reading order is important because each file can override values in the previous files and this is expected behavior. Normally we read in this order, all in do_git_config_sequence(): 1. $HOME/.gitconfig 2. $GIT_DIR/config 3. config from command line However in read_early_config() the order may be swapped a bit if setup_git_directory() has not been called: 1. $HOME/.gitconfig 2. $GIT_DIR/config is NOT read because .git dir is not found _yet_ 3. config from command line 4. $GIT_DIR/config is now READ (after discover_git_directory() call) The reading at step 4 could override config at step 3, which is not the expectation. Now that we could pass the .git dir around, we could feed discover_git_directory() back to step 2, so that it works again, and remove step 4. Noticed-by: Jeff King <peff@peff.net> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-17config: handle conditional include when $GIT_DIR is not set upLibravatar Nguyễn Thái Ngọc Duy1-8/+26
If setup_git_directory() and friends have not been called, get_git_dir() (because of includeIf.gitdir:XXX) would lead to die("BUG: setup_git_env called without repository"); There are two cases when a config file could be read before $GIT_DIR is located. The first one is check_repository_format(), where we read just the one file $GIT_DIR/config to check if we could understand this repository. This case should be safe. We do not parse include directives, which can only be triggered from git_config_with_options, but setup code uses a lower-level function. The concerned variables should never be hidden away behind includes anyway. The second one is triggered in check_pager_config() when we're about to run an external git command. We might be able to find $GIT_DIR in this case, which is exactly what read_early_config() does (and also is what check_pager_config() uses). Conditional includes and get_git_dir() could be triggered by the first git_config_with_options() call there, before discover_git_directory() is used as a fallback $GIT_DIR detection. Detect this special "early reading" case, pass down the $GIT_DIR, either from previous setup or detected by discover_git_directory(), and make conditional include use it. Noticed-by: Bert Wesarg <bert.wesarg@googlemail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-17config: prepare to pass more info in git_config_with_options()Libravatar Nguyễn Thái Ngọc Duy1-5/+11
So far we can only pass one flag, respect_includes, to thie function. We need to pass some more (non-flag even), so let's make it accept a struct instead of an integer. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-14config: resolve symlinks in conditional include's patternsLibravatar Nguyễn Thái Ngọc Duy1-3/+3
$GIT_DIR returned by get_git_dir() is normalized, with all symlinks resolved (see setup_work_tree function). In order to match paths (or patterns) against $GIT_DIR char-by-char, they have to be normalized too. There is a note in config.txt about this, that the user need to resolve symlinks by themselves if needed. The problem is, we allow certain path expansion, '~/' and './', for convenience and can't ask the user to resolve symlinks in these expansions. Make sure the expanded paths have all symlinks resolved. PS. The strbuf_realpath(&text, get_git_dir(), 1) is still needed because get_git_dir() may return relative path. Noticed-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-14path.c: and an option to call real_path() in expand_user_path()Libravatar Nguyễn Thái Ngọc Duy1-4/+4
In the next patch we need the ability to expand '~' to real_path($HOME). But we can't do that from outside because '~' is part of a pattern, not a true path. Add an option to expand_user_path() to do so. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-13http.postbuffer: allow full range of ssize_t valuesLibravatar David Turner1-0/+17
Unfortunately, in order to push some large repos where a server does not support chunked encoding, the http postbuffer must sometimes exceed two gigabytes. On a 64-bit system, this is OK: we just malloc a larger buffer. This means that we need to use CURLOPT_POSTFIELDSIZE_LARGE to set the buffer size. Signed-off-by: David Turner <dturner@twosigma.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21Merge branch 'nd/conditional-config-include'Libravatar Junio C Hamano1-0/+92
The configuration file learned a new "includeIf.<condition>.path" that includes the contents of the given path only when the condition holds. This allows you to say "include this work-related bit only in the repositories under my ~/work/ directory". * nd/conditional-config-include: config: add conditional include config.txt: reflow the second include.path paragraph config.txt: clarify multiple key values in include.path
2017-03-17Merge branch 'js/early-config'Libravatar Junio C Hamano1-0/+25
The start-up sequence of "git" needs to figure out some configured settings before it finds and set itself up in the location of the repository and was quite messy due to its "chicken-and-egg" nature. The code has been restructured. * js/early-config: setup.c: mention unresolved problems t1309: document cases where we would want early config not to die() setup_git_directory_gently_1(): avoid die()ing t1309: test read_early_config() read_early_config(): really discover .git/ read_early_config(): avoid .git/config hack when unneeded setup: make read_early_config() reusable setup: introduce the discover_git_directory() function setup_git_directory_1(): avoid changing global state setup: prepare setup_discovered_git_dir() for the root directory setup_git_directory(): use is_dir_sep() helper t7006: replace dubious test
2017-03-17Merge branch 'cc/split-index-config'Libravatar Junio C Hamano1-2/+40
The experimental "split index" feature has gained a few configuration variables to make it easier to use. * cc/split-index-config: (22 commits) Documentation/git-update-index: explain splitIndex.* Documentation/config: add splitIndex.sharedIndexExpire read-cache: use freshen_shared_index() in read_index_from() read-cache: refactor read_index_from() t1700: test shared index file expiration read-cache: unlink old sharedindex files config: add git_config_get_expiry() from gc.c read-cache: touch shared index files when used sha1_file: make check_and_freshen_file() non static Documentation/config: add splitIndex.maxPercentChange t1700: add tests for splitIndex.maxPercentChange read-cache: regenerate shared index if necessary config: add git_config_get_max_percent_split_change() Documentation/git-update-index: talk about core.splitIndex config var Documentation/config: add information for core.splitIndex t1700: add tests for core.splitIndex update-index: warn in case of split-index incoherency read-cache: add and then use tweak_split_index() split-index: add {add,remove}_split_index() functions config: add git_config_get_split_index() ...
2017-03-14read_early_config(): really discover .git/Libravatar Johannes Schindelin1-19/+12
Earlier, we punted and simply assumed that we are in the top-level directory of the project, and that there is no .git file but a .git/ directory so that we can read directly from .git/config. However, that is not necessarily true. We may be in a subdirectory. Or .git may be a gitfile. Or the environment variable GIT_DIR may be set. To remedy this situation, we just refactored the way setup_git_directory() discovers the .git/ directory, to make it reusable, and more importantly, to leave all global variables and the current working directory alone. Let's discover the .git/ directory correctly in read_early_config() by using that new function. This fixes 4 known breakages in t7006. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-14read_early_config(): avoid .git/config hack when unneededLibravatar Johannes Schindelin1-2/+3
So far, we only look whether the startup_info claims to have seen a git_dir. However, do_git_config_sequence() (and consequently the git_config_with_options() call used by read_early_config() asks the have_git_dir() function whether we have a .git/ directory, which in turn also looks at git_dir and at the environment variable GIT_DIR. And when this is the case, the repository config is handled already, so we do not have to do that again explicitly. Let's just use the same function, have_git_dir(), to determine whether we have to handle .git/config explicitly. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-14setup: make read_early_config() reusableLibravatar Johannes Schindelin1-0/+31
The pager configuration needs to be read early, possibly before discovering any .git/ directory. Let's not hide this function in pager.c, but make it available to other callers. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-11config: add conditional includeLibravatar Nguyễn Thái Ngọc Duy1-0/+92
Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-10Merge branch 'jk/parse-config-key-cleanup'Libravatar Junio C Hamano1-6/+9
The "parse_config_key()" API function has been cleaned up. * jk/parse-config-key-cleanup: parse_hide_refs_config: tell parse_config_key we don't want a subsection parse_config_key: allow matching single-level config parse_config_key: use skip_prefix instead of starts_with
2017-03-10Merge branch 'jc/config-case-cmdline-take-2'Libravatar Junio C Hamano1-97/+101
The code to parse "git -c VAR=VAL cmd" and set configuration variable for the duration of cmd had two small bugs, which have been fixed. * jc/config-case-cmdline-take-2: config: use git_config_parse_key() in git_config_parse_parameter() config: move a few helper functions up
2017-03-01config: add git_config_get_expiry() from gc.cLibravatar Christian Couder1-0/+13
This function will be used in a following commit to get the expiration time of the shared index files from the config, and it is generic enough to be put in "config.c". Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01config: add git_config_get_max_percent_split_change()Libravatar Christian Couder1-0/+15
This new function will be used in a following commit to get the value of the "splitIndex.maxPercentChange" config variable. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01config: add git_config_get_split_index()Libravatar Christian Couder1-0/+10
This new function will be used in a following commit to know if we want to use the split index feature or not. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01config: mark an error message up for translationLibravatar Christian Couder1-2/+2
Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-24parse_config_key: allow matching single-level configLibravatar Jeff King1-2/+6
The parse_config_key() function was introduced to make it easier to match "section.subsection.key" variables. It also handles the simpler "section.key", and the caller is responsible for distinguishing the two from its out-parameters. Most callers who _only_ want "section.key" would just use a strcmp(var, "section.key"), since there is no parsing required. However, they may still use parse_config_key() if their "section" variable isn't a constant (an example of this is in parse_hide_refs_config). Using the parse_config_key is a bit clunky, though: const char *subsection; int subsection_len; const char *key; if (!parse_config_key(var, section, &subsection, &subsection_len, &key) && !subsection) { /* matched! */ } Instead, let's treat a NULL subsection as an indication that the caller does not expect one. That lets us write: const char *key; if (!parse_config_key(var, section, NULL, NULL, &key)) { /* matched! */ } Existing callers should be unaffected, as passing a NULL subsection would currently segfault. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-24parse_config_key: use skip_prefix instead of starts_withLibravatar Jeff King1-4/+3
This saves us having to repeatedly add in "section_len" (and also avoids walking over the first part of the string multiple times for a strlen() and strrchr()). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-23config: use git_config_parse_key() in git_config_parse_parameter()Libravatar Junio C Hamano1-5/+9
The parsing of one-shot assignments of configuration variables that come from the command line historically was quite loose and allowed anything to pass. It also downcased everything in the variable name, even a three-level <section>.<subsection>.<variable> name in which the <subsection> part must be treated in a case sensitive manner. Existing git_config_parse_key() helper is used to parse the variable name that comes from the command line, i.e. "git config VAR VAL", and handles these details correctly. Replace the strbuf_tolower() call in git_config_parse_parameter() with a call to it to correct both issues. git_config_parse_key() does a bit more things that are not necessary for the purpose of this codepath (e.g. it allocates a separate buffer to return the canonicalized variable name because it takes a "const char *" input), but we are not in a performance-critical codepath here. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-23config: move a few helper functions upLibravatar Junio C Hamano1-92/+92
git_config_parse_key() implements the validation and downcasing of <section> and <variable> in "<section>[.<subsection>].<variable>" configuration variable name. Move it (and helpers it uses) a bit up so that it can be used by git_config_parse_parameter(), which is used to check configuration settings that are given on the command line (i.e. "git -c VAR=VAL cmd"), in a later patch. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-31Merge branch 'nd/config-misc-fixes' into maintLibravatar Junio C Hamano1-5/+15
Leakage of lockfiles in the config subsystem has been fixed. * nd/config-misc-fixes: config.c: handle lock file in error case in git_config_rename_... config.c: rename label unlock_and_out config.c: handle error case for fstat() calls
2017-01-31Merge branch 'jc/abbrev-autoscale-config' into maintLibravatar Junio C Hamano1-4/+10
Recent update to the default abbreviation length that auto-scales lacked documentation update, which has been corrected. * jc/abbrev-autoscale-config: config.abbrev: document the new default that auto-scales
2017-01-31refs: add option core.logAllRefUpdates = alwaysLibravatar Cornelius Weig1-1/+6
When core.logallrefupdates is true, we only create a new reflog for refs that are under certain well-known hierarchies. The reason is that we know that some hierarchies (like refs/tags) are not meant to change, and that unknown hierarchies might not want reflogs at all (e.g., a hypothetical refs/foo might be meant to change often and drop old history immediately). However, sometimes it is useful to override this decision and simply log for all refs, because the safety and audit trail is more important than the performance implications of keeping the log around. This patch introduces a new "always" mode for the core.logallrefupdates option which will log updates to everything under refs/, regardless where in the hierarchy it is (we still will not log things like ORIG_HEAD and FETCH_HEAD, which are known to be transient). Based-on-patch-by: Jeff King <peff@peff.net> Signed-off-by: Cornelius Weig <cornelius.weig@tngtech.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-18Merge branch 'bw/grep-recurse-submodules'Libravatar Junio C Hamano1-4/+4
"git grep" has been taught to optionally recurse into submodules. * bw/grep-recurse-submodules: grep: search history of moved submodules grep: enable recurse-submodules to work on <tree> objects grep: optionally recurse into submodules grep: add submodules as a grep source type submodules: load gitmodules file from commit sha1 submodules: add helper to determine if a submodule is initialized submodules: add helper to determine if a submodule is populated real_path: canonicalize directory separators in root parts real_path: have callers use real_pathdup and strbuf_realpath real_path: create real_pathdup real_path: convert real_path_internal to strbuf_realpath real_path: resolve symlinks by hand
2017-01-10Merge branch 'nd/config-misc-fixes'Libravatar Junio C Hamano1-5/+15
Leakage of lockfiles in the config subsystem has been fixed. * nd/config-misc-fixes: config.c: handle lock file in error case in git_config_rename_... config.c: rename label unlock_and_out config.c: handle error case for fstat() calls
2017-01-10Merge branch 'jc/abbrev-autoscale-config'Libravatar Junio C Hamano1-4/+10
Recent update to the default abbreviation length that auto-scales lacked documentation update, which has been corrected. * jc/abbrev-autoscale-config: config.abbrev: document the new default that auto-scales
2016-12-22config.abbrev: document the new default that auto-scalesLibravatar Junio C Hamano1-4/+10
We somehow forgot to update the "default is 7" in the documentation. Also give a way to explicitly ask the auto-scaling by setting config.abbrev to "auto". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-22config.c: handle lock file in error case in git_config_rename_...Libravatar Nguyễn Thái Ngọc Duy1-1/+3
We could rely on atexit() to clean up everything, but let's be explicit when we can. And it's good anyway because the function is called the second time in the same process, we're in trouble. This function should not affect the successful case because after commit_lock_file() is called, rollback_lock_file() becomes no-op, as long as it is initialized. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-22submodules: load gitmodules file from commit sha1Libravatar Brandon Williams1-4/+4
teach submodules to load a '.gitmodules' file from a commit sha1. This enables the population of the submodule_cache to be based on the state of the '.gitmodules' file from a particular commit. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-20config.c: rename label unlock_and_outLibravatar Nguyễn Thái Ngọc Duy1-2/+2
There are two ways to unlock a file: commit, or revert. Rename it to commit_and_out to avoid confusion. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-20config.c: handle error case for fstat() callsLibravatar Nguyễn Thái Ngọc Duy1-2/+10
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-15compression: unify pack.compression configuration parsingLibravatar Junio C Hamano1-0/+16
There are three codepaths that use a variable whose name is pack_compression_level to affect how objects and deltas sent to a packfile is compressed. Unlike zlib_compression_level that controls the loose object compression, however, this variable was static to each of these codepaths. Two of them read the pack.compression configuration variable, using core.compression as the default, and one of them also allowed overriding it from the command line. The other codepath in bulk-checkin did not pay any attention to the configuration. Unify the configuration parsing to git_default_config(), where we implement the parsing of core.loosecompression and core.compression and make the former override the latter, by moving code to parse pack.compression and also allow core.compression to give default to this variable. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-27get_short_sha1: make default disambiguation configurableLibravatar Jeff King1-0/+3
When we find ambiguous short sha1s, we may get a disambiguation rule from our caller's context. But if we don't, we fall back to treating all sha1s the same, even though most projects will tend to refer only to commits by their short sha1s. This patch introduces a configuration option that lets the user pick a different fallback (e.g., only commits). It's possible that we may want to make this the default, but it's a good idea to start as a config option for two reasons: 1. It lets people experiment with this and see if it's a good idea (i.e., the "tend to" above is an assumption; we don't really know if this will break some obscure cases). 2. Even if we do flip the default, it gives people an escape hatch if it causes problems (you can sometimes override it by asking for "1234^{tree}", but not all combinations are possible). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-21Merge branch 'jk/setup-sequence-update'Libravatar Junio C Hamano1-4/+1
There were numerous corner cases in which the configuration files are read and used or not read at all depending on the directory a Git command was run, leading to inconsistent behaviour. The code to set-up repository access at the beginning of a Git process has been updated to fix them. * jk/setup-sequence-update: t1007: factor out repeated setup init: reset cached config when entering new repo init: expand comments explaining config trickery config: only read .git/config from configured repos test-config: setup git directory t1302: use "git -C" pager: handle early config pager: use callbacks instead of configset pager: make pager_program a file-local static pager: stop loading git_default_config() pager: remove obsolete comment diff: always try to set up the repository diff: handle --no-index prefixes consistently diff: skip implicit no-index check when given --no-index patch-id: use RUN_SETUP_GENTLY hash-object: always try to set up the git repository
2016-09-13config: only read .git/config from configured reposLibravatar Jeff King1-1/+1
When git_config() runs, it looks in the system, user-wide, and repo-level config files. It gets the latter by calling git_pathdup(), which in turn calls get_git_dir(). If we haven't set up the git repository yet, this may simply return ".git", and we will look at ".git/config". This seems like it would be helpful (presumably we haven't set up the repository yet, so it tries to find it), but it turns out to be a bad idea for a few reasons: - it's not sufficient, and therefore hides bugs in a confusing way. Config will be respected if commands are run from the top-level of the working tree, but not from a subdirectory. - it's not always true that we haven't set up the repository _yet_; we may not want to do it at all. For instance, if you run "git init /some/path" from inside another repository, it should not load config from the existing repository. - there might be a path ".git/config", but it is not the actual repository we would find via setup_git_directory(). This may happen, e.g., if you are storing a git repository inside another git repository, but have munged one of the files in such a way that the inner repository is not valid (e.g., by removing HEAD). We have at least two bugs of the second type in git-init, introduced by ae5f677 (lazily load core.sharedrepository, 2016-03-11). It causes init to use git_configset(), which loads all of the config, including values from the current repo (if any). This shows up in two ways: 1. If we happen to be in an existing repository directory, we'll read and respect core.sharedrepository from it, even though it should have no bearing on the new repository. A new test in t1301 covers this. 2. Similarly, if we're in an existing repo that sets core.logallrefupdates, that will cause init to fail to set it in a newly created repository (because it thinks that the user's templates already did so). A new test in t0001 covers this. We also need to adjust an existing test in t1302, which gives another example of why this patch is an improvement. That test creates an embedded repository with a bogus core.repositoryformatversion of "99". It wants to make sure that we actually stop at the bogus repo rather than continuing upward to find the outer repo. So it checks that "git config core.repositoryformatversion" returns 99. But that only works because we blindly read ".git/config", even though we _know_ we're in a repository whose vintage we do not understand. After this patch, we avoid reading config from the unknown vintage repository at all, which is a safer choice. But we need to tweak the test, since core.repositoryformatversion will not return 99; it will claim that it could not find the variable at all. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-13pager: stop loading git_default_config()Libravatar Jeff King1-3/+0
In git_pager(), we really only care about getting the value of core.pager. But to do so, we use the git_default_config() callback, which loads many other values. Ordinarily it isn't a big deal to load this config an extra time, as it simply overwrites the values from the previous run. But it's a bad idea here, for two reasons: 1. The pager setup may be called very early in the program, before we have found the git repository. As a result, we may fail to read the correct repo-level config file. This is a problem for core.pager, too, but we should at least try to minimize the pollution to other configured values. 2. Because we call setup_pager() from git.c, basically every builtin command _may_ end up reading this config and getting an implicit git_default_config() setup. Which doesn't sound like a terrible thing, except that we don't do it consistently; it triggers only when stdout is a tty. So if a command forgets to load the default config itself (but depends on it anyway), it may appear to work, and then mysteriously fail when the pager is not in use. We can improve this by loading _just_ the core.pager config from git_pager(). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-24i18n: simplify numeric error reportingLibravatar Jean-Noel Avila1-28/+16
Signed-off-by: Jean-Noel Avila <jn.avila@free.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-28i18n: config: unfold error messages marked for translationLibravatar Vasco Almeida1-19/+98
Introduced in 473166b ("config: add 'origin_type' to config_source struct", 2016-02-19), Git can inform the user about the origin of a config error, but the implementation does not allow translators to translate the keywords 'file', 'blob, 'standard input', and 'submodule-blob'. Moreover, for the second message, a reason for the error is appended to the message, not allowing translators to translate that reason either. Unfold the message into several templates for each known origin_type. That would result in better translation at the expense of code verbosity. Add enum config_oringin_type to ease management of the various configuration origin types (blob, file, etc). Previously origin type was considered from command line if cf->origin_type == NULL, i.e., uninitialized. Now we set origin_type to CONFIG_ORIGIN_CMDLINE in git_config_from_parameters() and configset_add_value(). For error message in git_parse_source(), use xstrfmt() function to prepare the message string, instead of doing something like it's done for die_bad_number(), because intelligibility and code conciseness are improved for that instance. Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-06Merge branch 'jk/upload-pack-hook'Libravatar Junio C Hamano1-39/+95
"upload-pack" allows a custom "git pack-objects" replacement when responding to "fetch/clone" via the uploadpack.packObjectsHook. * jk/upload-pack-hook: upload-pack: provide a hook for running pack-objects t1308: do not get fooled by symbolic links to the source tree config: add a notion of "scope" config: return configset value for current_config_ functions config: set up config_source for command-line config git_config_parse_parameter: refactor cleanup code git_config_with_options: drop "found" counting
2016-07-06Merge branch 'pc/occurred' into maintLibravatar Junio C Hamano1-1/+1
Typofix. * pc/occurred: config.c: fix misspelt "occurred" in an error message refs.h: fix misspelt "occurred" in a comment
2016-06-27Merge branch 'pc/occurred'Libravatar Junio C Hamano1-1/+1
* pc/occurred: config.c: fix misspelt "occurred" in an error message refs.h: fix misspelt "occurred" in a comment