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2017-06-13Merge branch 'nd/fopen-errors'Libravatar Junio C Hamano1-5/+2
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
2017-06-04Merge branch 'ab/c-translators-comment-style'Libravatar Junio C Hamano1-2/+4
Update the C style recommendation for notes for translators, as recent versions of gettext tools can work with our style of multi-line comments. * ab/c-translators-comment-style: C style: use standard style for "TRANSLATORS" comments
2017-05-31C style: use standard style for "TRANSLATORS" commentsLibravatar Ævar Arnfjörð Bjarmason1-2/+4
Change all the "TRANSLATORS: [...]" comments in the C code to use the regular Git coding style, and amend the style guide so that the example there uses that style. This custom style was necessary back in 2010 when the gettext support was initially added, and was subsequently documented in commit cbcfd4e3ea ("i18n: mention "TRANSLATORS:" marker in Documentation/CodingGuidelines", 2014-04-18). GNU xgettext hasn't had the parsing limitation that necessitated this exception for almost 3 years. Since its 0.19 release on 2014-06-02 it's been able to recognize TRANSLATOR comments in the standard Git comment syntax[1]. Usually we'd like to keep compatibility with software that's that young, but in this case literally the only person who needs to be using a gettext newer than 3 years old is Jiang Xin (the only person who runs & commits "make pot" results), so I think in this case we can make an exception. This xgettext parsing feature was added after a thread on the Git mailing list[2] which continued on the bug-gettext[3] list, but we never subsequently changed our style & styleguide, do so. There are already longstanding changes in git that use the standard comment style & have their TRANSLATORS comments extracted properly without getting the literal "*"'s mixed up in the text, as would happen before xgettext 0.19. Commit 7ff2683253 ("builtin-am: implement -i/--interactive", 2015-08-04) added one such comment, which in commit df0617bfa7 ("l10n: git.pot: v2.6.0 round 1 (123 new, 41 removed)", 2015-09-05) got picked up in the po/git.pot file with the right format, showing that Jiang already runs a modern xgettext. The xgettext parser does not handle the sort of non-standard comment style that I'm amending here in sequencer.c, but that isn't standard Git comment syntax anyway. With this change to sequencer.c & "make pot" the comment in the pot file is now correct: #. TRANSLATORS: %s will be "revert", "cherry-pick" or -#. * "rebase -i". +#. "rebase -i". 1. http://git.savannah.gnu.org/cgit/gettext.git/commit/?id=10af7fe6bd 2. <2ce9ec406501d112e032c8208417f8100bed04c6.1397712142.git.worldhello.net@gmail.com> (https://public-inbox.org/git/2ce9ec406501d112e032c8208417f8100bed04c6.1397712142.git.worldhello.net@gmail.com/) 3. https://lists.gnu.org/archive/html/bug-gettext/2014-04/msg00016.html Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Jiang Xin <worldhello.net@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-29Merge branch 'jk/update-links-in-docs'Libravatar Junio C Hamano1-1/+1
A few http:// links that are redirected to https:// in the documentation have been updated to https:// links. * jk/update-links-in-docs: doc: use https links to Wikipedia to avoid http redirects
2017-05-26wrapper.c: add and use fopen_or_warn()Libravatar Nguyễn Thái Ngọc Duy1-1/+1
When fopen() returns NULL, it could be because the given path does not exist, but it could also be some other errors and the caller has to check. Add a wrapper so we don't have to repeat the same error check everywhere. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26use xfopen() in more placesLibravatar Nguyễn Thái Ngọc Duy1-4/+1
xfopen() - provides error details - explains error on reading, or writing, or whatever operation - has l10n support - prints file name in the error Some of these are missing in the places that are replaced with xfopen(), which is a clear win. In some other places, it's just less code (not as clearly a win as the previous case but still is). The only slight regresssion is in remote-testsvn, where we don't report the file class (marks files) in the error messages anymore. But since this is a _test_ svn remote transport, I'm not too concerned. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-15doc: use https links to Wikipedia to avoid http redirectsLibravatar Sven Strickroth1-1/+1
Signed-off-by: Sven Strickroth <email@cs-ware.de> Reviewed-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08Convert lookup_commit* to struct object_idLibravatar brian m. carlson1-1/+1
Convert lookup_commit, lookup_commit_or_die, lookup_commit_reference, and lookup_commit_reference_gently to take struct object_id arguments. Introduce a temporary in parse_object buffer in order to convert this function. This is required since in order to convert parse_object and parse_object_buffer, lookup_commit_reference_gently and lookup_commit_or_die would need to be converted. Not introducing a temporary would therefore require that lookup_commit_or_die take a struct object_id *, but lookup_commit would take unsigned char *, leaving a confusing and hard-to-use interface. parse_object_buffer will lose this temporary in a later patch. This commit was created with manual changes to commit.c, commit.h, and object.c, plus the following semantic patch: @@ expression E1, E2; @@ - lookup_commit_reference_gently(E1.hash, E2) + lookup_commit_reference_gently(&E1, E2) @@ expression E1, E2; @@ - lookup_commit_reference_gently(E1->hash, E2) + lookup_commit_reference_gently(E1, E2) @@ expression E1; @@ - lookup_commit_reference(E1.hash) + lookup_commit_reference(&E1) @@ expression E1; @@ - lookup_commit_reference(E1->hash) + lookup_commit_reference(E1) @@ expression E1; @@ - lookup_commit(E1.hash) + lookup_commit(&E1) @@ expression E1; @@ - lookup_commit(E1->hash) + lookup_commit(E1) @@ expression E1, E2; @@ - lookup_commit_or_die(E1.hash, E2) + lookup_commit_or_die(&E1, E2) @@ expression E1, E2; @@ - lookup_commit_or_die(E1->hash, E2) + lookup_commit_or_die(E1, E2) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-26Merge branch 'jk/war-on-git-path'Libravatar Junio C Hamano1-1/+2
While handy, "git_path()" is a dangerous function to use as a callsite that uses it safely one day can be broken by changes to other code that calls it. Reduction of its use continues. * jk/war-on-git-path: am: drop "dir" parameter from am_state_init replace strbuf_addstr(git_path()) with git_path_buf() replace xstrdup(git_path(...)) with git_pathdup(...) use git_path_* helper functions branch: add edit_description() helper bisect: add git_path_bisect_terms helper
2017-04-20bisect: add git_path_bisect_terms helperLibravatar Jeff King1-1/+2
This avoids using the dangerous git_path(). Right now there's only one call site (because the writing half is still part of the shell script), but it may come in handy in the future as more of bisect is written in C. It also matches how we access the other BISECT_* files. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-19Merge branch 'bc/object-id'Libravatar Junio C Hamano1-22/+21
Conversion from unsigned char [40] to struct object_id continues. * bc/object-id: Documentation: update and rename api-sha1-array.txt Rename sha1_array to oid_array Convert sha1_array_for_each_unique and for_each_abbrev to object_id Convert sha1_array_lookup to take struct object_id Convert remaining callers of sha1_array_lookup to object_id Make sha1_array_append take a struct object_id * sha1-array: convert internal storage for struct sha1_array to object_id builtin/pull: convert to struct object_id submodule: convert check_for_new_submodule_commits to object_id sha1_name: convert disambiguate_hint_fn to take object_id sha1_name: convert struct disambiguate_state to object_id test-sha1-array: convert most code to struct object_id parse-options-cb: convert sha1_array_append caller to struct object_id fsck: convert init_skiplist to struct object_id builtin/receive-pack: convert portions to struct object_id builtin/pull: convert portions to struct object_id builtin/diff: convert to struct object_id Convert GIT_SHA1_RAWSZ used for allocation to GIT_MAX_RAWSZ Convert GIT_SHA1_HEXSZ used for allocation to GIT_MAX_HEXSZ Define new hash-size constants for allocating memory
2017-03-31Rename sha1_array to oid_arrayLibravatar brian m. carlson1-8/+8
Since this structure handles an array of object IDs, rename it to struct oid_array. Also rename the accessor functions and the initialization constant. This commit was produced mechanically by providing non-Documentation files to the following Perl one-liners: perl -pi -E 's/struct sha1_array/struct oid_array/g' perl -pi -E 's/\bsha1_array_/oid_array_/g' perl -pi -E 's/SHA1_ARRAY_INIT/OID_ARRAY_INIT/g' Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31Convert sha1_array_lookup to take struct object_idLibravatar brian m. carlson1-4/+3
Convert this function by changing the declaration and definition and applying the following semantic patch to update the callers: @@ expression E1, E2; @@ - sha1_array_lookup(E1, E2.hash) + sha1_array_lookup(E1, &E2) @@ expression E1, E2; @@ - sha1_array_lookup(E1, E2->hash) + sha1_array_lookup(E1, E2) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31Convert remaining callers of sha1_array_lookup to object_idLibravatar brian m. carlson1-7/+7
There are a very small number of callers which don't already use struct object_id. Convert them. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31Make sha1_array_append take a struct object_id *Libravatar brian m. carlson1-2/+2
Convert the callers to pass struct object_id by changing the function declaration and definition and applying the following semantic patch: @@ expression E1, E2; @@ - sha1_array_append(E1, E2.hash) + sha1_array_append(E1, &E2) @@ expression E1, E2; @@ - sha1_array_append(E1, E2->hash) + sha1_array_append(E1, E2) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-30replace unchecked snprintf calls with heap buffersLibravatar Jeff King1-3/+5
We'd prefer to avoid unchecked snprintf calls because truncation can lead to unexpected results. These are all cases where truncation shouldn't ever happen, because the input to snprintf is fixed in size. That makes them candidates for xsnprintf(), but it's simpler still to just use the heap, and then nobody has to wonder if "100" is big enough. We'll use xstrfmt() where possible, and a strbuf when we need the resulting size or to reuse the same buffer in a loop. Signed-off-by: Jeff King <peff@peff.net>
2017-03-28sha1-array: convert internal storage for struct sha1_array to object_idLibravatar brian m. carlson1-7/+7
Make the internal storage for struct sha1_array use an array of struct object_id internally. Update the users of this struct which inspect its internals. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-26Convert GIT_SHA1_HEXSZ used for allocation to GIT_MAX_HEXSZLibravatar brian m. carlson1-1/+1
Since we will likely be introducing a new hash function at some point, and that hash function might be longer than 40 hex characters, use the constant GIT_MAX_HEXSZ, which is designed to be suitable for allocations, instead of GIT_SHA1_HEXSZ. This will ease the transition down the line by distinguishing between places where we need to allocate memory suitable for the largest hash from those where we need to handle the current hash. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-16Merge branch 'mm/two-more-xstrfmt' into maintLibravatar Junio C Hamano1-4/+5
Code clean-up and a string truncation fix. * mm/two-more-xstrfmt: bisect_next_all: convert xsnprintf to xstrfmt stop_progress_msg: convert xsnprintf to xstrfmt
2017-02-27Merge branch 'mm/two-more-xstrfmt'Libravatar Junio C Hamano1-4/+5
Code clean-up and a string truncation fix. * mm/two-more-xstrfmt: bisect_next_all: convert xsnprintf to xstrfmt stop_progress_msg: convert xsnprintf to xstrfmt
2017-02-16bisect_next_all: convert xsnprintf to xstrfmtLibravatar Maxim Moseychuk1-4/+5
Git can't run bisect between 2048+ commits if use russian translation, because the translated string is too long for the fixed buffer it uses (this can be reproduced "LANG=ru_RU.UTF8 git bisect start v4.9 v4.8" on linux sources). Use xstrfmt() to format the message string to sufficiently sized buffer instead to fix this. Signed-off-by: Maxim Moseychuk <franchesko.salias.hudro.pedros@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-05bisect: improve English grammar of not-ancestors messageLibravatar Alex Henrie1-1/+1
Multiple revisions cannot be a single ancestor. Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-29use QSORTLibravatar René Scharfe1-1/+1
Apply the semantic patch contrib/coccinelle/qsort.cocci to the code base, replacing calls of qsort(3) with QSORT. The resulting code is shorter and supports empty arrays with NULL pointers. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-19Merge branch 'jk/printf-format'Libravatar Junio C Hamano1-1/+4
Code clean-up to avoid using a variable string that compilers may feel untrustable as printf-style format given to write_file() helper function. * jk/printf-format: commit.c: remove print_commit_list() avoid using sha1_to_hex output as printf format walker: let walker_say take arbitrary formats
2016-07-19Merge branch 'bc/cocci'Libravatar Junio C Hamano1-1/+1
Conversion from unsigned char sha1[20] to struct object_id continues. * bc/cocci: diff: convert prep_temp_blob() to struct object_id merge-recursive: convert merge_recursive_generic() to object_id merge-recursive: convert leaf functions to use struct object_id merge-recursive: convert struct merge_file_info to object_id merge-recursive: convert struct stage_data to use object_id diff: rename struct diff_filespec's sha1_valid member diff: convert struct diff_filespec to struct object_id coccinelle: apply object_id Coccinelle transformations coccinelle: convert hashcpy() with null_sha1 to hashclr() contrib/coccinelle: add basic Coccinelle transforms hex: add oid_to_hex_r()
2016-07-13Merge branch 'va/i18n-even-more'Libravatar Junio C Hamano1-25/+31
More markings of messages for i18n, with updates to various tests to pass GETTEXT_POISON tests. One patch from the original submission dropped due to conflicts with jk/upload-pack-hook, which is still in flux. * va/i18n-even-more: (38 commits) t5541: become resilient to GETTEXT_POISON i18n: branch: mark comment when editing branch description for translation i18n: unmark die messages for translation i18n: submodule: escape shell variables inside eval_gettext i18n: submodule: join strings marked for translation i18n: init-db: join message pieces i18n: remote: allow translations to reorder message i18n: remote: mark URL fallback text for translation i18n: standardise messages i18n: sequencer: add period to error message i18n: merge: change command option help to lowercase i18n: merge: mark messages for translation i18n: notes: mark options for translation i18n: notes: mark strings for translation i18n: transport-helper.c: change N_() call to _() i18n: bisect: mark strings for translation t5523: use test_i18ngrep for negation t4153: fix negated test_i18ngrep call t9003: become resilient to GETTEXT_POISON tests: unpack-trees: update to use test_i18n* functions ...
2016-07-08commit.c: remove print_commit_list()Libravatar Junio C Hamano1-1/+4
The helper function tries to offer a way to conveniently show the last one differently from others, presumably to allow you to say something like A, B, and C. while iterating over a list that has these three elements. However, there is only one caller, and it passes the same format string "%s\n" for both the last one and the other ones. Retire the helper function and update the caller with a simplified version. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-06Merge branch 'jk/bisect-show-tree'Libravatar Junio C Hamano1-0/+1
"git bisect" makes an internal call to "git diff-tree" when bisection finds the culprit, but this call did not initialize the data structure to pass to the diff-tree API correctly. * jk/bisect-show-tree: bisect: always call setup_revisions after init_revisions
2016-06-28coccinelle: apply object_id Coccinelle transformationsLibravatar brian m. carlson1-1/+1
Apply the set of semantic patches from contrib/coccinelle to convert some leftover places using struct object_id's hash member to instead use the wrapper functions that take struct object_id natively. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-17i18n: bisect: mark strings for translationLibravatar Vasco Almeida1-25/+31
In the last message, involving Q_(), try to mark the message in such way that is suited for RTL (Right to Left) languages. Update test t6030-bisect-porcelain.sh to reflect the changes. Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-06-16bisect: always call setup_revisions after init_revisionsLibravatar Jeff King1-0/+1
init_revisions() initializes the rev_info struct to default values, and setup_revisions() parses any command-line arguments and finalizes the struct. In e22278c (bisect: display first bad commit without forking a new process, 2009-05-28), a show_diff_tree() was added that calls the former but not the latter. It doesn't have any arguments to parse, but it still should do the finalizing step. This may have caused other minor bugs over the years, but it became much more prominent after fe37a9c (pretty: allow tweaking tabwidth in --expand-tabs, 2016-03-29). That leaves the expected tab width as "-1", rather than the true default of "8". When we see a commit with tabs to be expanded, we end up trying to add (size_t)-1 spaces to a strbuf, which complains about the integer overflow. The fix is easy: just call setup_revisions() with no arguments. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-05-09bisect.c: use die_errno() and warning_errno()Libravatar 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>
2016-02-26Merge branch 'jk/tighten-alloc'Libravatar Junio C Hamano1-2/+2
Update various codepaths to avoid manually-counted malloc(). * jk/tighten-alloc: (22 commits) ewah: convert to REALLOC_ARRAY, etc convert ewah/bitmap code to use xmalloc diff_populate_gitlink: use a strbuf transport_anonymize_url: use xstrfmt git-compat-util: drop mempcpy compat code sequencer: simplify memory allocation of get_message test-path-utils: fix normalize_path_copy output buffer size fetch-pack: simplify add_sought_entry fast-import: simplify allocation in start_packfile write_untracked_extension: use FLEX_ALLOC helper prepare_{git,shell}_cmd: use argv_array use st_add and st_mult for allocation size computation convert trivial cases to FLEX_ARRAY macros use xmallocz to avoid size arithmetic convert trivial cases to ALLOC_ARRAY convert manual allocations to argv_array argv-array: add detach function add helpers for allocating flex-array structs harden REALLOC_ARRAY and xcalloc against size_t overflow tree-diff: catch integer overflow in combine_diff_path allocation ...
2016-02-22convert trivial cases to ALLOC_ARRAYLibravatar Jeff King1-2/+2
Each of these cases can be converted to use ALLOC_ARRAY or REALLOC_ARRAY, which has two advantages: 1. It automatically checks the array-size multiplication for overflow. 2. It always uses sizeof(*array) for the element-size, so that it can never go out of sync with the declared type of the array. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-15strbuf: introduce strbuf_getline_{lf,nul}()Libravatar Junio C Hamano1-4/+4
The strbuf_getline() interface allows a byte other than LF or NUL as the line terminator, but this is only because I wrote these codepaths anticipating that there might be a value other than NUL and LF that could be useful when I introduced line_termination long time ago. No useful caller that uses other value has emerged. By now, it is clear that the interface is overly broad without a good reason. Many codepaths have hardcoded preference to read either LF terminated or NUL terminated records from their input, and then call strbuf_getline() with LF or NUL as the third parameter. This step introduces two thin wrappers around strbuf_getline(), namely, strbuf_getline_lf() and strbuf_getline_nul(), and mechanically rewrites these call sites to call either one of them. The changes contained in this patch are: * introduction of these two functions in strbuf.[ch] * mechanical conversion of all callers to strbuf_getline() with either '\n' or '\0' as the third parameter to instead call the respective thin wrapper. After this step, output from "git grep 'strbuf_getline('" would become a lot smaller. An interim goal of this series is to make this an empty set, so that we can have strbuf_getline_crlf() take over the shorter name strbuf_getline(). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-11-20Remove get_object_hash.Libravatar brian m. carlson1-3/+3
Convert all instances of get_object_hash to use an appropriate reference to the hash member of the oid member of struct object. This provides no functional change, as it is essentially a macro substitution. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-11-20Convert struct object to object_idLibravatar brian m. carlson1-2/+2
struct object is one of the major data structures dealing with object IDs. Convert it to use struct object_id instead of an unsigned char array. Convert get_object_hash to refer to the new member as well. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-11-20Add several uses of get_object_hash.Libravatar brian m. carlson1-3/+3
Convert most instances where the sha1 member of struct object is dereferenced to use get_object_hash. Most instances that are passed to functions that have versions taking struct object_id, such as get_sha1_hex/get_oid_hex, or instances that can be trivially converted to use struct object_id instead, are not converted. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-10-05Merge branch 'ad/bisect-terms'Libravatar Junio C Hamano1-3/+8
The use of 'good/bad' in "git bisect" made it confusing to use when hunting for a state change that is not a regression (e.g. bugfix). The command learned 'old/new' and then allows the end user to say e.g. "bisect start --term-old=fast --term=new=slow" to find a performance regression. Michael's idea to make 'good/bad' more intelligent does have certain attractiveness ($gname/272867), and makes some of the work on this topic a moot point. * ad/bisect-terms: bisect: allow setting any user-specified in 'git bisect start' bisect: add 'git bisect terms' to view the current terms bisect: add the terms old/new bisect: sanity check on terms
2015-08-25Merge branch 'dt/refs-pseudo'Libravatar Junio C Hamano1-29/+8
To prepare for allowing a different "ref" backend to be plugged in to the system, update_ref()/delete_ref() have been taught about ref-like things like MERGE_HEAD that are per-worktree (they will always be written to the filesystem inside $GIT_DIR). * dt/refs-pseudo: pseudoref: check return values from read_ref() sequencer: replace write_cherry_pick_head with update_ref bisect: use update_ref pseudorefs: create and use pseudoref update and delete functions refs: add ref_type function refs: introduce pseudoref and per-worktree ref concepts
2015-08-19Merge branch 'jk/git-path'Libravatar Junio C Hamano1-2/+5
git_path() and mkpath() are handy helper functions but it is easy to misuse, as the callers need to be careful to keep the number of active results below 4. Their uses have been reduced. * jk/git-path: memoize common git-path "constant" files get_repo_path: refactor path-allocation find_hook: keep our own static buffer refs.c: remove_empty_directories can take a strbuf refs.c: avoid git_path assignment in lock_ref_sha1_basic refs.c: avoid repeated git_path calls in rename_tmp_log refs.c: simplify strbufs in reflog setup and writing path.c: drop git_path_submodule refs.c: remove extra git_path calls from read_loose_refs remote.c: drop extraneous local variable from migrate_file prefer mkpathdup to mkpath in assignments prefer git_pathdup to git_path in some possibly-dangerous cases add_to_alternates_file: don't add duplicate entries t5700: modernize style cache.h: complete set of git_path_submodule helpers cache.h: clarify documentation for git_path, et al
2015-08-10memoize common git-path "constant" filesLibravatar Jeff King1-2/+5
One of the most common uses of git_path() is to pass a constant, like git_path("MERGE_MSG"). This has two drawbacks: 1. The return value is a static buffer, and the lifetime is dependent on other calls to git_path, etc. 2. There's no compile-time checking of the pathname. This is OK for a one-off (after all, we have to spell it correctly at least once), but many of these constant strings appear throughout the code. This patch introduces a series of functions to "memoize" these strings, which are essentially globals for the lifetime of the program. We compute the value once, take ownership of the buffer, and return the cached value for subsequent calls. cache.h provides a helper macro for defining these functions as one-liners, and defines a few common ones for global use. Using a macro is a little bit gross, but it does nicely document the purpose of the functions. If we need to touch them all later (e.g., because we learned how to change the git_dir variable at runtime, and need to invalidate all of the stored values), it will be much easier to have the complete list. Note that the shared-global functions have separate, manual declarations. We could do something clever with the macros (e.g., expand it to a declaration in some places, and a declaration _and_ a definition in path.c). But there aren't that many, and it's probably better to stay away from too-magical macros. Likewise, if we abandon the C preprocessor in favor of generating these with a script, we could get much fancier. E.g., normalizing "FOO/BAR-BAZ" into "git_path_foo_bar_baz". But the small amount of saved typing is probably not worth the resulting confusion to readers who want to grep for the function's definition. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-03bisect: add the terms old/newLibravatar Antoine Delaite1-3/+8
When not looking for a regression during a bisect but for a fix or a change in another given property, it can be confusing to use 'good' and 'bad'. This patch introduce `git bisect new` and `git bisect old` as an alternative to 'bad' and good': the commits which have a certain property must be marked as `new` and the ones which do not as `old`. The output will be the first commit after the change in the property. During a new/old bisect session you cannot use bad/good commands and vice-versa. Some commands are still not available for old/new: * git rev-list --bisect does not treat the revs/bisect/new and revs/bisect/old-SHA1 files. Old discussions: - http://thread.gmane.org/gmane.comp.version-control.git/86063 introduced bisect fix unfixed to find fix. - http://thread.gmane.org/gmane.comp.version-control.git/182398 discussion around bisect yes/no or old/new. - http://thread.gmane.org/gmane.comp.version-control.git/199758 last discussion and reviews New discussions: - http://thread.gmane.org/gmane.comp.version-control.git/271320 ( v2 1/7-4/7 ) - http://comments.gmane.org/gmane.comp.version-control.git/271343 ( v2 5/7-7/7 ) Signed-off-by: Antoine Delaite <antoine.delaite@ensimag.grenoble-inp.fr> Signed-off-by: Louis Stuber <stuberl@ensimag.grenoble-inp.fr> Signed-off-by: Valentin Duperray <Valentin.Duperray@ensimag.imag.fr> Signed-off-by: Franck Jonas <Franck.Jonas@ensimag.imag.fr> Signed-off-by: Lucien Kong <Lucien.Kong@ensimag.imag.fr> Signed-off-by: Thomas Nguy <Thomas.Nguy@ensimag.imag.fr> Signed-off-by: Huynh Khoi Nguyen Nguyen <Huynh-Khoi-Nguyen.Nguyen@ensimag.imag.fr> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-03bisect: simplify the addition of new bisect termsLibravatar Antoine Delaite1-2/+31
We create a file BISECT_TERMS in the repository .git to be read during a bisection. There's no user-interface yet, but "git bisect" works if terms other than old/new or bad/good are set in .git/BISECT_TERMS. The fonctions to be changed if we add new terms are quite few. In git-bisect.sh: check_and_set_terms bisect_voc Co-authored-by: Louis Stuber <stuberl@ensimag.grenoble-inp.fr> Tweaked-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Antoine Delaite <antoine.delaite@ensimag.grenoble-inp.fr> Signed-off-by: Louis Stuber <stuberl@ensimag.grenoble-inp.fr> Signed-off-by: Valentin Duperray <Valentin.Duperray@ensimag.imag.fr> Signed-off-by: Franck Jonas <Franck.Jonas@ensimag.imag.fr> Signed-off-by: Lucien Kong <Lucien.Kong@ensimag.imag.fr> Signed-off-by: Thomas Nguy <Thomas.Nguy@ensimag.imag.fr> Signed-off-by: Huynh Khoi Nguyen Nguyen <Huynh-Khoi-Nguyen.Nguyen@ensimag.imag.fr> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-31bisect: use update_refLibravatar David Turner1-29/+8
Instead of manually writing a pseudoref (in one case) and shelling out to git update-ref (in another), use the update_ref function. This is much simpler. Signed-off-by: David Turner <dturner@twopensource.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-29bisect: replace hardcoded "bad|good" by variablesLibravatar Antoine Delaite1-17/+37
To add new tags like old/new and have keywords less confusing, the first step is to avoid hardcoding the keywords. The default mode is still bad/good. Signed-off-by: Antoine Delaite <antoine.delaite@ensimag.grenoble-inp.fr> Signed-off-by: Louis Stuber <stuberl@ensimag.grenoble-inp.fr> Signed-off-by: Valentin Duperray <Valentin.Duperray@ensimag.imag.fr> Signed-off-by: Franck Jonas <Franck.Jonas@ensimag.imag.fr> Signed-off-by: Lucien Kong <Lucien.Kong@ensimag.imag.fr> Signed-off-by: Thomas Nguy <Thomas.Nguy@ensimag.imag.fr> Signed-off-by: Huynh Khoi Nguyen Nguyen <Huynh-Khoi-Nguyen.Nguyen@ensimag.imag.fr> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-23bisect: correction of typoLibravatar Antoine Delaite1-1/+1
Signed-off-by: Antoine Delaite <antoine.delaite@ensimag.grenoble-inp.fr> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-25register_ref(): rewrite to take an object_id argumentLibravatar Michael Haggerty1-8/+5
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-25each_ref_fn: change to take an object_id parameterLibravatar Michael Haggerty1-1/+4
Change typedef each_ref_fn to take a "const struct object_id *oid" parameter instead of "const unsigned char *sha1". To aid this transition, implement an adapter that can be used to wrap old-style functions matching the old typedef, which is now called "each_ref_sha1_fn"), and make such functions callable via the new interface. This requires the old function and its cb_data to be wrapped in a "struct each_ref_fn_sha1_adapter", and that object to be used as the cb_data for an adapter function, each_ref_fn_adapter(). This is an enormous diff, but most of it consists of simple, mechanical changes to the sites that call any of the "for_each_ref" family of functions. Subsequent to this change, the call sites can be rewritten one by one to use the new interface. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-13bisect.c: convert leaf functions to use struct object_idLibravatar brian m. carlson1-20/+20
Convert some constants to GIT_SHA1_HEXSZ. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>