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2018-05-10lock_file: move static locks into functionsLibravatar Martin Ågren1-2/+1
Placing `struct lock_file`s on the stack used to be a bad idea, because the temp- and lockfile-machinery would keep a pointer into the struct. But after 076aa2cbd (tempfile: auto-allocate tempfiles on heap, 2017-09-05), we can safely have lockfiles on the stack. (This applies even if a user returns early, leaving a locked lock behind.) Each of these `struct lock_file`s is used from within a single function. Move them into the respective functions to make the scope clearer and drop the staticness. For good measure, I have inspected these sites and come to believe that they always release the lock, with the possible exception of bailing out using `die()` or `exit()` or by returning from a `cmd_foo()`. As pointed out by Jeff King, it would be bad if someone held on to a `struct lock_file *` for some reason. After some grepping, I agree with his findings: no-one appears to be doing that. After this commit, the remaining occurrences of "static struct lock_file" are locks that are used from within different functions. That is, they need to remain static. (Short of more intrusive changes like passing around pointers to non-static locks.) Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-03submodule: remove gitmodules_configLibravatar Brandon Williams1-2/+0
Now that the submodule-config subsystem can lazily read the gitmodules file we no longer need to explicitly pre-read the gitmodules by calling 'gitmodules_config()' so let's remove it. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-24Merge branch 'bw/config-h'Libravatar Junio C Hamano1-0/+1
Fix configuration codepath to pay proper attention to commondir that is used in multi-worktree situation, and isolate config API into its own header file. * bw/config-h: config: don't implicitly use gitdir or commondir config: respect commondir setup: teach discover_git_directory to respect the commondir config: don't include config.h by default config: remove git_config_iter config: create config.h
2017-06-15config: don't include config.h by defaultLibravatar Brandon Williams1-0/+1
Stop including config.h by default in cache.h. Instead only include config.h in those files which require use of the config system. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13Merge branch 'sb/submodule-blanket-recursive'Libravatar Junio C Hamano1-23/+9
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
2017-06-01Introduce 'submodule.recurse' option for worktree manipulatorsLibravatar Stefan Beller1-1/+9
Any command that understands '--recurse-submodules' can have its default changed to true, by setting the new 'submodule.recurse' option. This patch includes read-tree/checkout/reset for working tree manipulating commands. Later patches will cover other commands. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-30reset/checkout/read-tree: unify config callback for submodule recursionLibravatar Stefan Beller1-25/+3
The callback function is essentially duplicated 3 times. Remove all of them and offer a new callback function, that lives in submodule.c By putting the callback function there, we no longer need the function 'set_config_update_recurse_submodules', nor duplicate the global variable in each builtin as well as submodule.c In the three builtins we have different 2 ways how to load the .gitmodules and config file, which are slightly different. git-checkout has to load the submodule config all the time due to 23b4c7bcc5 (checkout: Use submodule.*.ignore settings from .git/config and .gitmodules, 2010-08-28) git-reset and git-read-tree do not respect these diff settings, so loading the submodule configuration is optional. Also put that into submodule.c for code deduplication. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-30submodule recursing: do not write a config variable twiceLibravatar Stefan Beller1-1/+1
The command line option for '--recurse-submodules' is implemented using an OPTION_CALLBACK, which takes both the callback (that sets the file static global variable) as well as passes the same file static global variable to the option parsing machinery to assign it. This is fixed in this commit by passing NULL as the variable. The callback sets it instead Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-29Merge branch 'ja/do-not-ask-needless-questions'Libravatar Junio C Hamano1-2/+3
Git sometimes gives an advice in a rhetorical question that does not require an answer, which can confuse new users and non native speakers. Attempt to rephrase them. * ja/do-not-ask-needless-questions: git-filter-branch: be more direct in an error message read-tree -m: make error message for merging 0 trees less smart aleck usability: don't ask questions if no reply is required
2017-05-29Merge branch 'jc/read-tree-empty-with-m'Libravatar Junio C Hamano1-1/+1
"git read-tree -m" (no tree-ish) gave a nonsense suggestion "use --empty if you want to clear the index". With "-m", such a request will still fail anyway, as you'd need to name at least one tree-ish to be merged. * jc/read-tree-empty-with-m: read-tree: "read-tree -m --empty" does not make sense
2017-05-12read-tree -m: make error message for merging 0 trees less smart aleckLibravatar Jean-Noel Avila1-2/+3
"git read-tree -m" requires a tree argument to name the tree to be merged in. Git uses a cutesy error message to say so and why: $ git read-tree -m warning: read-tree: emptying the index with no arguments is deprecated; use --empty fatal: just how do you expect me to merge 0 trees? $ git read-tree -m --empty fatal: just how do you expect me to merge 0 trees? When lucky, that could produce an ah-hah moment for the user, but it's more likely to irritate and distract them. Instead, tell the user plainly that the tree argument is required. Also document this requirement in the git-read-tree(1) manpage where there is room to explain it in a more straightforward way. Signed-off-by: Jean-Noel Avila <jn.avila@free.fr> Helped-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-10read-tree: "read-tree -m --empty" does not make senseLibravatar Junio C Hamano1-1/+1
fb1bb965 ("read-tree: deprecate syntax without tree-ish args", 2010-09-10) wanted to deprecate "git read-tree" without any tree, which used to be the way to empty the index, and encourage use of "git read-tree --empty" instead. However, when used with "-m", "--empty" does not make any sense, either, simply because merging 0 trees will result in a different error anyway. Omit the deprecation warning and let the code to emit real error message diagnose the error. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08tree: convert parse_tree_indirect to struct object_idLibravatar brian m. carlson1-1/+1
Convert parse_tree_indirect to take a pointer to struct object_id. Update all the callers. This transformation was achieved using the following semantic patch and manual updates to the declaration and definition. Update builtin/checkout.c manually as well, since it uses a ternary expression not handled by the semantic patch. @@ expression E1; @@ - parse_tree_indirect(E1.hash) + parse_tree_indirect(&E1) @@ expression E1; @@ - parse_tree_indirect(E1->hash) + parse_tree_indirect(E1) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08builtin/read-tree: convert to struct object_idLibravatar brian m. carlson1-5/+5
This is a caller of parse_tree_indirect, which must be converted in order to convert parse_object. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-16builtin/read-tree: add --recurse-submodules switchLibravatar Stefan Beller1-0/+29
A new known failure mode is introduced[1], which is actually not a failure but a feature in read-tree. Unlike checkout for which the recursive submodule tests were originally written, read-tree does warn about ignored untracked files that would be overwritten. For the sake of keeping the test library for submodules generic, just mark the test as a failure. [1] KNOWN_FAILURE_SUBMODULE_OVERWRITE_IGNORED_UNTRACKED Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-11read-tree: use OPT_BOOL instead of OPT_SET_INTLibravatar Stefan Beller1-18/+18
All occurrences of OPT_SET_INT were setting the value to 1; internally OPT_BOOL is just that. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-07hold_locked_index(): align error handling with hold_lockfile_for_update()Libravatar Junio C Hamano1-1/+1
Callers of the hold_locked_index() function pass 0 when they want to prepare to write a new version of the index file without wishing to die or emit an error message when the request fails (e.g. somebody else already held the lock), and pass 1 when they want the call to die upon failure. This option is called LOCK_DIE_ON_ERROR by the underlying lockfile API, and the hold_locked_index() function translates the paramter to LOCK_DIE_ON_ERROR when calling the hold_lock_file_for_update(). Replace these hardcoded '1' with LOCK_DIE_ON_ERROR and stop translating. Callers other than the ones that are replaced with this change pass '0' to the function; no behaviour change is intended with this patch. Signed-off-by: Junio C Hamano <gitster@pobox.com> --- Among the callers of hold_locked_index() that passes 0: - diff.c::refresh_index_quietly() at the end of "git diff" is an opportunistic update; it leaks the lockfile structure but it is just before the program exits and nobody should care. - builtin/describe.c::cmd_describe(), builtin/commit.c::cmd_status(), sequencer.c::read_and_refresh_cache() are all opportunistic updates and they are OK. - builtin/update-index.c::cmd_update_index() takes a lock upfront but we may end up not needing to update the index (i.e. the entries may be fully up-to-date), in which case we do not need to issue an error upon failure to acquire the lock. We do diagnose and die if we indeed need to update, so it is OK. - wt-status.c::require_clean_work_tree() IS BUGGY. It asks silence, does not check the returned value. Compare with callsites like cmd_describe() and cmd_status() to notice that it is wrong to call update_index_if_able() unconditionally.
2016-09-07cache: convert struct cache_entry to use struct object_idLibravatar brian m. carlson1-1/+1
Convert struct cache_entry to use struct object_id by applying the following semantic patch and the object_id transforms from contrib, plus the actual change to the struct: @@ struct cache_entry E1; @@ - E1.sha1 + E1.oid.hash @@ struct cache_entry *E1; @@ - E1->sha1 + E1->oid.hash Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-25convert trivial sprintf / strcpy calls to xsnprintfLibravatar Jeff King1-1/+1
We sometimes sprintf into fixed-size buffers when we know that the buffer is large enough to fit the input (either because it's a constant, or because it's numeric input that is bounded in size). Likewise with strcpy of constant strings. However, these sites make it hard to audit sprintf and strcpy calls for buffer overflows, as a reader has to cross-reference the size of the array with the input. Let's use xsnprintf instead, which communicates to a reader that we don't expect this to overflow (and catches the mistake in case we do). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-01Merge branch 'ah/read-tree-usage-string'Libravatar Junio C Hamano1-1/+1
Usage string fix. * ah/read-tree-usage-string: read-tree: replace bracket set with parentheses to clarify usage
2015-08-28read-tree: replace bracket set with parentheses to clarify usageLibravatar Alex Henrie1-1/+1
-u and -i can only be given if -m, --reset, or --prefix is given. Without parentheses, it looks like -u and -i can be used no matter what, and the second pair of brackets is confusing. Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-01lockfile.h: extract new header file for the functions in lockfile.cLibravatar Michael Haggerty1-0/+1
Move the interface declaration for the functions in lockfile.c from cache.h to a new file, lockfile.h. Add #includes where necessary (and remove some redundant includes of cache.h by files that already include builtin.h). Move the documentation of the lock_file state diagram from lockfile.c to the new header file. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13read-tree: note about dropping split-index mode or index versionLibravatar Nguyễn Thái Ngọc Duy1-0/+9
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13cache-tree: mark istate->cache_changed on prime_cache_tree()Libravatar Nguyễn Thái Ngọc Duy1-1/+1
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-13read-cache: new API write_locked_index instead of write_index/write_cacheLibravatar Nguyễn Thái Ngọc Duy1-4/+3
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-16C: have space around && and || operatorsLibravatar Junio C Hamano1-1/+1
Correct all hits from git grep -e '\(&&\|||\)[^ ]' -e '[^ ]\(&&\|||\)' -- '*.c' i.e. && or || operators that are followed by anything but a SP, or that follow something other than a SP or a HT, so that these operators have a SP around it when necessary. We usually refrain from making this kind of a tree-wide change in order to avoid unnecessary conflicts with other "real work" patches, but in this case, the end result does not have a potentially cumbersome tree-wide impact, while this is a tree-wide cleanup. Fixes to compat/regex/regcomp.c and xdiff/xemit.c are to replace a HT immediately after && with a SP. This is based on Felipe's patch to bultin/symbolic-ref.c; I did all the finding out what other files in the whole tree need to be fixed and did the fix and also the log message while reviewing that single liner, so any screw-ups in this version are mine. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02diff-lib, read-tree, unpack-trees: mark cache_entry array paramters constLibravatar René Scharfe1-1/+2
Change the type merge_fn_t to accept the array of cache_entry pointers as const pointers to const pointers. This documents the fact that the merge functions don't modify the cache_entry contents or replace any of the pointers in the array. Only a single cast is necessary in unpack_nondirectories because adding two const modifiers at once is not allowed in C. The cast is safe in that it doesn't mask any modfication; call_unpack_fn only needs the array for reading. Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02diff-lib, read-tree, unpack-trees: mark cache_entry pointers constLibravatar René Scharfe1-1/+1
Add const to struct cache_entry pointers throughout the tree which are only used for reading. This allows callers to pass in const pointers. Signed-off-by: René Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-20i18n: read-tree: mark parseopt strings for translationLibravatar Nguyễn Thái Ngọc Duy1-19/+19
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-25Teach read-tree the -n|--dry-run optionLibravatar Jens Lehmann1-1/+2
The option can be used to check if read-tree with the same set of other options like "-m" and "-u" would succeed without actually changing either the index or the working tree. The relevant tests in the t10?? range were extended to do a read-tree -n before the real read-tree to make sure neither the index nor any local files were changed with -n and the same exit code as without -n is returned. The helper functions added for that purpose reside in the new t/lib-read-tree.sh file. The only exception is #13 in t1004 ("unlinking an un-unlink-able symlink"). As this is an issue of wrong directory permissions it is not detected with -n. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-15Make <identifier> lowercase as per CodingGuidelinesLibravatar Michael J Gruber1-2/+2
*.c part for matches with '"[A-Z]+"'. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-15add description parameter to OPT__VERBOSELibravatar René Scharfe1-1/+1
Allows better help text to be defined than "be verbose". Also make use of the macro in places that already had a different description. No object code changes intended. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-10read-tree: deprecate syntax without tree-ish argsLibravatar Jan Krüger1-1/+9
Currently, read-tree can be run without tree-ish arguments, in which case it will empty the index. Since this behavior is undocumented and perhaps a bit too invasive to be the "default" action for read-tree, deprecate it in favor of a new --empty option that does the same thing. Signed-off-by: Jan Krüger <jk@jk.gs> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-08Merge remote branch 'ko/master' into jc/read-tree-cache-tree-fixLibravatar Junio C Hamano1-0/+230
* ko/master: (2325 commits) Git 1.7.2-rc2 backmerge a few more fixes to 1.7.1.X series fix git branch -m in presence of cross devices t/t0006: specify timezone as EST5 not EST to comply with POSIX add missing && to submodule-merge testcase t/README: document more test helpers test-date: fix sscanf type conversion xdiff: optimise for no whitespace difference when ignoring whitespace. gitweb: Move evaluate_gitweb_config out of run_request parse_date: fix signedness in timezone calculation t0006: test timezone parsing rerere.txt: Document forget subcommand t/README: proposed rewording... t/README: Document the do's and don'ts of tests t/README: Add a section about skipping tests t/README: Document test_expect_code t/README: Document test_external* t/README: Document the prereq functions, and 3-arg test_* t/README: Typo: paralell -> parallel t/README: The trash is in 't/trash directory.$name' ... Conflicts: builtin-read-tree.c
2010-02-22Move 'builtin-*' into a 'builtin/' subdirectoryLibravatar Linus Torvalds1-0/+235
This shrinks the top-level directory a bit, and makes it much more pleasant to use auto-completion on the thing. Instead of [torvalds@nehalem git]$ em buil<tab> Display all 180 possibilities? (y or n) [torvalds@nehalem git]$ em builtin-sh builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o [torvalds@nehalem git]$ em builtin-shor<tab> builtin-shortlog.c builtin-shortlog.o [torvalds@nehalem git]$ em builtin-shortlog.c you get [torvalds@nehalem git]$ em buil<tab> [type] builtin/ builtin.h [torvalds@nehalem git]$ em builtin [auto-completes to] [torvalds@nehalem git]$ em builtin/sh<tab> [type] shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o [torvalds@nehalem git]$ em builtin/sho [auto-completes to] [torvalds@nehalem git]$ em builtin/shor<tab> [type] shortlog.c shortlog.o [torvalds@nehalem git]$ em builtin/shortlog.c which doesn't seem all that different, but not having that annoying break in "Display all 180 possibilities?" is quite a relief. NOTE! If you do this in a clean tree (no object files etc), or using an editor that has auto-completion rules that ignores '*.o' files, you won't see that annoying 'Display all 180 possibilities?' message - it will just show the choices instead. I think bash has some cut-off around 100 choices or something. So the reason I see this is that I'm using an odd editory, and thus don't have the rules to cut down on auto-completion. But you can simulate that by using 'ls' instead, or something similar. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>