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2020-03-05Merge branch 'mr/bisect-in-c-1'Libravatar Junio C Hamano3-98/+189
Underlying machinery of "git bisect--helper" is being refactored into pieces that are more easily reused. * mr/bisect-in-c-1: bisect: libify `bisect_next_all` bisect: libify `handle_bad_merge_base` and its dependents bisect: libify `check_good_are_ancestors_of_bad` and its dependents bisect: libify `check_merge_bases` and its dependents bisect: libify `bisect_checkout` bisect: libify `exit_if_skipped_commits` to `error_if_skipped*` and its dependents bisect--helper: return error codes from `cmd_bisect__helper()` bisect: add enum to represent bisect returning codes bisect--helper: introduce new `decide_next()` function bisect: use the standard 'if (!var)' way to check for 0 bisect--helper: change `retval` to `res` bisect--helper: convert `vocab_*` char pointers to char arrays
2020-03-05Merge branch 'ds/sparse-add'Libravatar Junio C Hamano4-34/+201
"git sparse-checkout" learned a new "add" subcommand. * ds/sparse-add: sparse-checkout: allow one-character directories in cone mode sparse-checkout: work with Windows paths sparse-checkout: create 'add' subcommand sparse-checkout: extract pattern update from 'set' subcommand sparse-checkout: extract add_patterns_from_input()
2020-03-02The eighth batch for 2.26Libravatar Junio C Hamano1-0/+37
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-03-02Merge branch 'ma/test-cleanup'Libravatar Junio C Hamano13-17/+5
Code cleanup. * ma/test-cleanup: t: drop debug `cat` calls t9810: drop debug `cat` call t4117: check for files using `test_path_is_file`
2020-03-02Merge branch 'rs/blame-typefix-for-fingerprint'Libravatar Junio C Hamano1-1/+3
Code cleanup. * rs/blame-typefix-for-fingerprint: blame: provide type of fingerprints pointer
2020-03-02Merge branch 'rs/micro-cleanups'Libravatar Junio C Hamano5-6/+5
Code cleanup. * rs/micro-cleanups: use strpbrk(3) to search for characters from a given set quote: use isalnum() to check for alphanumeric characters
2020-03-02Merge branch 'es/worktree-cleanup'Libravatar Junio C Hamano1-4/+0
Code cleanup. * es/worktree-cleanup: worktree: drop unused code from get_main_worktree()
2020-03-02Merge branch 'ak/test-log-graph'Libravatar Junio C Hamano5-107/+74
Test update. * ak/test-log-graph: lib-log-graph: consolidate colored graph cmp logic lib-log-graph: consolidate test_cmp_graph logic
2020-03-02Merge branch 'jk/run-command-formatfix'Libravatar Junio C Hamano1-1/+1
Code style cleanup. * jk/run-command-formatfix: run-command.h: fix mis-indented struct member
2020-03-02Merge branch 'ds/partial-clone-fixes'Libravatar Junio C Hamano2-5/+36
Fix for a bug revealed by a recent change to make the protocol v2 the default. * ds/partial-clone-fixes: partial-clone: avoid fetching when looking for objects partial-clone: demonstrate bugs in partial fetch
2020-03-02Merge branch 'en/t3433-rebase-stat-dirty-failure'Libravatar Junio C Hamano2-2/+53
The merge-recursive machinery failed to refresh the cache entry for a merge result in a couple of places, resulting in an unnecessary merge failure, which has been fixed. * en/t3433-rebase-stat-dirty-failure: merge-recursive: fix the refresh logic in update_file_flags t3433: new rebase testcase documenting a stat-dirty-like failure
2020-03-02Merge branch 'en/rebase-backend'Libravatar Junio C Hamano25-277/+693
"git rebase" has learned to use the merge backend (i.e. the machinery that drives "rebase -i") by default, while allowing "--apply" option to use the "apply" backend (e.g. the moral equivalent of "format-patch piped to am"). The rebase.backend configuration variable can be set to customize. * en/rebase-backend: rebase: rename the two primary rebase backends rebase: change the default backend from "am" to "merge" rebase: make the backend configurable via config setting rebase tests: repeat some tests using the merge backend instead of am rebase tests: mark tests specific to the am-backend with --am rebase: drop '-i' from the reflog for interactive-based rebases git-prompt: change the prompt for interactive-based rebases rebase: add an --am option rebase: move incompatibility checks between backend options a bit earlier git-rebase.txt: add more details about behavioral differences of backends rebase: allow more types of rebases to fast-forward t3432: make these tests work with either am or merge backends rebase: fix handling of restrict_revision rebase: make sure to pass along the quiet flag to the sequencer rebase, sequencer: remove the broken GIT_QUIET handling t3406: simplify an already simple test rebase (interactive-backend): fix handling of commits that become empty rebase (interactive-backend): make --keep-empty the default t3404: directly test the behavior of interest git-rebase.txt: update description of --allow-empty-message
2020-03-02Merge branch 'en/check-ignore'Libravatar Junio C Hamano3-19/+35
"git check-ignore" did not work when the given path is explicitly marked as not ignored with a negative entry in the .gitignore file. * en/check-ignore: check-ignore: fix documentation and implementation to match
2020-03-02Merge branch 'jk/object-filter-with-bitmap'Libravatar Junio C Hamano14-70/+511
The object reachability bitmap machinery and the partial cloning machinery were not prepared to work well together, because some object-filtering criteria that partial clones use inherently rely on object traversal, but the bitmap machinery is an optimization to bypass that object traversal. There however are some cases where they can work together, and they were taught about them. * jk/object-filter-with-bitmap: rev-list --count: comment on the use of count_right++ pack-objects: support filters with bitmaps pack-bitmap: implement BLOB_LIMIT filtering pack-bitmap: implement BLOB_NONE filtering bitmap: add bitmap_unset() function rev-list: use bitmap filters for traversal pack-bitmap: basic noop bitmap filter infrastructure rev-list: allow commit-only bitmap traversals t5310: factor out bitmap traversal comparison rev-list: allow bitmaps when counting objects rev-list: make --count work with --objects rev-list: factor out bitmap-optimized routines pack-bitmap: refuse to do a bitmap traversal with pathspecs rev-list: fallback to non-bitmap traversal when filtering pack-bitmap: fix leak of haves/wants object lists pack-bitmap: factor out type iterator initialization
2020-03-02Merge branch 'jk/push-option-doc-markup-fix'Libravatar Junio C Hamano1-2/+2
Doc markup fix. * jk/push-option-doc-markup-fix: doc/config/push: use longer "--" line for preformatted example
2020-03-02Merge branch 'jk/doc-diff-parallel'Libravatar Junio C Hamano1-1/+1
Update to doc-diff. * jk/doc-diff-parallel: doc-diff: use single-colon rule in rendering Makefile
2020-02-25The seventh batch for 2.26Libravatar Junio C Hamano1-0/+8
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-25Merge branch 'es/doc-mentoring'Libravatar Junio C Hamano1-0/+36
Doc for new contributors. * es/doc-mentoring: MyFirstContribution: rephrase contact info MyFirstContribution: add avenues for getting help
2020-02-25Merge branch 'es/bright-colors'Libravatar Junio C Hamano3-22/+69
The basic 7 colors learned the brighter counterparts (e.g. "brightred"). * es/bright-colors: color.c: alias RGB colors 8-15 to aixterm colors color.c: support bright aixterm colors color.c: refactor color_output arguments
2020-02-25Merge branch 'bw/remote-rename-update-config'Libravatar Junio C Hamano12-90/+305
"git remote rename X Y" needs to adjust configuration variables (e.g. branch.<name>.remote) whose value used to be X to Y. branch.<name>.pushRemote is now also updated. * bw/remote-rename-update-config: remote rename/remove: gently handle remote.pushDefault config config: provide access to the current line number remote rename/remove: handle branch.<name>.pushRemote config values remote: clean-up config callback remote: clean-up by returning early to avoid one indentation pull --rebase/remote rename: document and honor single-letter abbreviations rebase types
2020-02-24lib-log-graph: consolidate colored graph cmp logicLibravatar Abhishek Kumar4-30/+20
Signed-off-by: Abhishek Kumar <abhishekkumar8222@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-24lib-log-graph: consolidate test_cmp_graph logicLibravatar Abhishek Kumar5-77/+54
Log graph comparision logic is duplicated many times in: - t3430-rebase-merges.sh - t4202-log.sh - t4214-log-graph-octopus.sh - t4215-log-skewed-merges.sh Consolidate the core of the comparision and sanitization logic in lib-log-graph, and use it to replace the existing tests. While at it, lose the singular/plural transition magic from the sanitize_output helper, which was necessary around 7f814632 ("Use correct grammar in diffstat summary line", 2012-02-01), that has long outlived its usefulness. Signed-off-by: Abhishek Kumar <abhishekkumar8222@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-24worktree: drop unused code from get_main_worktree()Libravatar Eric Sunshine1-4/+0
This code has been unused since fa099d2322 (worktree.c: kill parse_ref() in favor of refs_resolve_ref_unsafe(), 2017-04-24), so drop it. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-24blame: provide type of fingerprints pointerLibravatar René Scharfe1-1/+3
The fingerprints member of struct blame_origin is a void pointer that is only ever used to reference objects of type struct fingerprint. Declare its type to allow the compiler to do type checks. We can keep its type opaque in blame.h, though -- only functions in blame.c need to know the actual definition of struct fingerprint. Signed-off-by: René Scharfe <l.s.r@web.de> Reviewed-by: Barret Rhoden <brho@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-24t: drop debug `cat` callsLibravatar Martin Ågren11-13/+2
We `cat` files, but don't inspect or grab the contents in any way. Unlike in an earlier commit, there is no reason to suspect that these files could be missing, so `cat`-ing them is just wasted effort. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-24t9810: drop debug `cat` callLibravatar Martin Ågren1-1/+0
We `cat` kwdelfile.c, but don't inspect or grab the contents in any way. This looks like a remnant from a debug session. Similar to the previous commit, one could argue that `cat`-ing the file verifies that it didn't disappear somehow. But because the very next thing we do after `cat`-ing the file is to `grep` in it, we can safely drop the call to `cat`. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-24t4117: check for files using `test_path_is_file`Libravatar Martin Ågren1-3/+3
We `cat` files, but don't inspect or grab the contents in any way. These `cat` calls look like remnants from a debug session, so it's tempting to get rid of them. But they do actually verify that the files exist, which might not necessarily be the case for some failure modes of `git apply --reject`. Let's not lose that. Convert the `cat` calls to use `test_path_is_file` instead. This is of course still a minor change since we no longer verify that the files can be opened for reading, but that is not something we usually worry about. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-24use strpbrk(3) to search for characters from a given setLibravatar René Scharfe4-5/+4
We can check if certain characters are present in a string by calling strchr(3) on each of them, or we can pass them all to a single strpbrk(3) call. The latter is shorter, less repetitive and slightly more efficient, so let's do that instead. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-24quote: use isalnum() to check for alphanumeric charactersLibravatar René Scharfe1-1/+1
isalnum(c) is equivalent to isalpha(c) || isdigit(c), so use the former instead. The result is shorter, simpler and slightly more efficient. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-22partial-clone: avoid fetching when looking for objectsLibravatar Derrick Stolee2-6/+6
When using partial clone, find_non_local_tags() in builtin/fetch.c checks each remote tag to see if its object also exists locally. There is no expectation that the object exist locally, but this function nevertheless triggers a lazy fetch if the object does not exist. This can be extremely expensive when asking for a commit, as we are completely removed from the context of the non-existent object and thus supply no "haves" in the request. 6462d5eb9a (fetch: remove fetch_if_missing=0, 2019-11-05) removed a global variable that prevented these fetches in favor of a bitflag. However, some object existence checks were not updated to use this flag. Update find_non_local_tags() to use OBJECT_INFO_SKIP_FETCH_OBJECT in addition to OBJECT_INFO_QUICK. The _QUICK option only prevents repreparing the pack-file structures. We need to be extremely careful about supplying _SKIP_FETCH_OBJECT when we expect an object to not exist due to updated refs. This resolves a broken test in t5616-partial-clone.sh. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-22partial-clone: demonstrate bugs in partial fetchLibravatar Derrick Stolee1-0/+31
While testing partial clone, I noticed some odd behavior. I was testing a way of running 'git init', followed by manually configuring the remote for partial clone, and then running 'git fetch'. Astonishingly, I saw the 'git fetch' process start asking the server for multiple rounds of pack-file downloads! When tweaking the situation a little more, I discovered that I could cause the remote to hang up with an error. Add two tests that demonstrate these two issues. In the first test, we find that when fetching with blob filters from a repository that previously did not have any tags, the 'git fetch --tags origin' command fails because the server sends "multiple filter-specs cannot be combined". This only happens when using protocol v2. In the second test, we see that a 'git fetch origin' request with several ref updates results in multiple pack-file downloads. This must be due to Git trying to fault-in the objects pointed by the refs. What makes this matter particularly nasty is that this goes through the do_oid_object_info_extended() method, so there are no "haves" in the negotiation. This leads the remote to send every reachable commit and tree from each new ref, providing a quadratic amount of data transfer! This test is fixed if we revert 6462d5eb9a (fetch: remove fetch_if_missing=0, 2019-11-05), but that revert causes other test failures. The real fix will need more care. The tests are ordered in this way because if I swap the test order the tag test will succeed instead of fail. I believe this is because somehow we need the srv.bare repo to not have any tags when we clone, but then have tags in our next fetch. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-22run-command.h: fix mis-indented struct memberLibravatar Jeff King1-1/+1
An accidental conversion of a tab to 4 spaces snuck into 4c4066d95d (run-command: move doc to run-command.h, 2019-11-17), messing up the alignment when you have the project-recommended 8-width tabstops. Let's revert that line. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-20sparse-checkout: allow one-character directories in cone modeLibravatar Derrick Stolee2-2/+12
In 9e6d3e64 (sparse-checkout: detect short patterns, 2020-01-24), a condition on the minimum length of a cone-mode pattern was introduced. However, this condition was off-by-one. If we have a directory with a single character, say "b", then the command git sparse-checkout set b will correctly add the pattern "/b/" to the sparse-checkout file. When this is interpeted in dir.c, the pattern is "/b" with the PATTERN_FLAG_MUSTBEDIR flag. This string has length two, which satisfies our inclusive inequality (<= 2). The reason for this inequality is that we will start to read the pattern string character-by-character using three char pointers: prev, cur, next. In particular, next is set to the current pattern plus two. The mistake was that next will still be a valid pointer when the pattern length is two, since the string is null-terminated. Make this inequality strict so these patterns work. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19merge-recursive: fix the refresh logic in update_file_flagsLibravatar Elijah Newren2-3/+6
If we need to delete a higher stage entry in the index to place the file at stage 0, then we'll lose that file's stat information. In such situations we may still be able to detect that the file on disk is the version we want (as noted by our comment in the code: /* do not overwrite file if already present */ ), but we do still need to update the mtime since we are creating a new cache_entry for that file. Update the logic used to determine whether we refresh a file's mtime. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19t3433: new rebase testcase documenting a stat-dirty-like failureLibravatar Elijah Newren1-0/+48
A user discovered a case where they had a stack of 20 simple commits to rebase, and the rebase would succeed in picking the first commit and then error out with a pair of "Could not execute the todo command" and "Your local changes to the following files would be overwritten by merge" messages. Their steps actually made use of the -i flag, but I switched it over to -m to make it simpler to trigger the bug. With that flag, it bisects back to commit 68aa495b590d (rebase: implement --merge via the interactive machinery, 2018-12-11), but that's misleading. If you change the -m flag to --keep-empty, then the problem persists and will bisect back to 356ee4659bb5 (sequencer: try to commit without forking 'git commit', 2017-11-24) After playing with the testcase for a bit, I discovered that added --exec "sleep 1" to the command line makes the rebase succeed, making me suspect there is some kind of discard and reloading of caches that lead us to believe that something is stat dirty, but I didn't succeed in digging any further than that. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect: libify `bisect_next_all`Libravatar Pranit Bauva2-12/+27
Since we want to get rid of git-bisect.sh, it would be necessary to convert those exit() calls to return statements so that errors can be reported. Emulate try catch in C by converting `exit(<positive-value>)` to `return <negative-value>`. Follow POSIX conventions to return <negative-value> to indicate error. All the functions calling `bisect_next_all()` are already able to handle return values from it. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect: libify `handle_bad_merge_base` and its dependentsLibravatar Pranit Bauva2-4/+6
Since we want to get rid of git-bisect.sh, it would be necessary to convert those exit() calls to return statements so that errors can be reported. Emulate try catch in C by converting `exit(<positive-value>)` to `return <negative-value>`. Follow POSIX conventions to return <negative-value> to indicate error. Update all callers to handle the error returns. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect: libify `check_good_are_ancestors_of_bad` and its dependentsLibravatar Pranit Bauva2-15/+37
Since we want to get rid of git-bisect.sh, it would be necessary to convert those exit() calls to return statements so that errors can be reported. Emulate try catch in C by converting `exit(<positive-value>)` to `return <negative-value>`. Follow POSIX conventions to return <negative-value> to indicate error. Code that turns BISECT_INTERNAL_SUCCESS_MERGE_BASE (-11) to BISECT_OK (0) from `check_good_are_ancestors_of_bad()` has been moved to `cmd_bisect__helper()`. Update all callers to handle the error returns. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect: libify `check_merge_bases` and its dependentsLibravatar Pranit Bauva2-5/+24
Since we want to get rid of git-bisect.sh, it would be necessary to convert those exit() calls to return statements so that errors can be reported. Emulate try catch in C by converting `exit(<positive-value>)` to `return <negative-value>`. Follow POSIX conventions to return <negative-value> to indicate error. In `check_merge_bases()` there is an early success special case, so we have introduced special error code BISECT_INTERNAL_SUCCESS_MERGE_BASE (-11) which indicates early success. This BISECT_INTERNAL_SUCCESS_MERGE_BASE is converted back to BISECT_OK (0) in `check_good_are_ancestors_of_bad()`. Update all callers to handle the error returns. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect: libify `bisect_checkout`Libravatar Pranit Bauva1-4/+15
Since we want to get rid of git-bisect.sh, it would be necessary to convert those exit() calls to return statements so that errors can be reported. Emulate try catch in C by converting `exit(<positive-value>)` to `return <negative-value>`. Follow POSIX conventions to return <negative-value> to indicate error. Turn `exit()` to `return` calls in `bisect_checkout()`. Changes related to return values have no bad side effects on the code that calls `bisect_checkout()`. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect: libify `exit_if_skipped_commits` to `error_if_skipped*` and its ↵Libravatar Pranit Bauva2-7/+15
dependents Since we want to get rid of git-bisect.sh, it would be necessary to convert those exit() calls to return statements so that errors can be reported. Emulate try catch in C by converting `exit(<positive-value>)` to `return <negative-value>`. Follow POSIX conventions to return <negative-value> to indicate error. Update all callers to handle the error returns. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect--helper: return error codes from `cmd_bisect__helper()`Libravatar Pranit Bauva1-1/+1
Since we want to get rid of git-bisect.sh, it would be necessary to convert bisect.c exit() calls to return statements so that errors can be reported. Let's prepare for that by making it possible to return different error codes than just 0 or 1. Different error codes might enable a bisecting script calling the bisect command that uses this function to do different things depending on the exit status of the bisect command. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect: add enum to represent bisect returning codesLibravatar Miriam Rubio2-2/+14
Since we want to get rid of git-bisect.sh, it would be necessary to convert those exit() calls to return statements so that errors can be reported. Create an enum called `bisect_error` with the bisecting return codes to use in `bisect.c` libification process. Change bisect_next_all() to make it return this enum. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect--helper: introduce new `decide_next()` functionLibravatar Tanushree Tumane1-32/+34
Let's refactor code from bisect_next_check() into a new decide_next() helper function. This removes some goto statements and makes the code simpler, clearer and easier to understand. While at it `bad_ref` and `good_glob` are not const any more to void casting them inside `free()`. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect: use the standard 'if (!var)' way to check for 0Libravatar Miriam Rubio1-2/+2
Instead of using 'var == 0' in an if condition, let's use '!var' and make 'bisect.c' more consistent with the rest of the code. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect--helper: change `retval` to `res`Libravatar Tanushree Tumane1-26/+26
Let's rename variable retval to res, so that variable names in bisect--helper.c are more consistent. After this change, there are 110 occurrences of res in the file and zero of retval, while there were 26 instances of retval before. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-19bisect--helper: convert `vocab_*` char pointers to char arraysLibravatar Miriam Rubio1-2/+2
Instead of using a pointer that points at a constant string, just give name directly to the constant string; this way, we do not have to allocate a pointer variable in addition to the string we want to use. Let's convert `vocab_bad` and `vocab_good` char pointers to char arrays. Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-18check-ignore: fix documentation and implementation to matchLibravatar Elijah Newren3-19/+35
check-ignore has two different modes, and neither of these modes has an implementation that matches the documentation. These modes differ in whether they just print paths or whether they also print the final pattern matched by the path. The fix is different for both modes, so I'll discuss both separately. === First (default) mode === The first mode is documented as: For each pathname given via the command-line or from a file via --stdin, check whether the file is excluded by .gitignore (or other input files to the exclude mechanism) and output the path if it is excluded. However, it fails to do this because it did not account for negated patterns. Commands other than check-ignore verify exclusion rules via calling ... -> treat_one_path() -> is_excluded() -> last_matching_pattern() while check-ignore has a call path of the form: ... -> check_ignore() -> last_matching_pattern() The fact that the latter does not include the call to is_excluded() means that it is susceptible to to messing up negated patterns (since that is the only significant thing is_excluded() adds over last_matching_pattern()). Unfortunately, we can't make it just call is_excluded(), because the same codepath is used by the verbose mode which needs to know the matched pattern in question. This brings us to... === Second (verbose) mode === The second mode, known as verbose mode, references the first in the documentation and says: Also output details about the matching pattern (if any) for each given pathname. For precedence rules within and between exclude sources, see gitignore(5). The "Also" means it will print patterns that match the exclude rules as noted for the first mode, and also print which pattern matches. Unless more information is printed than just pathname and pattern (which is not done), this definition is somewhat ill-defined and perhaps even self-contradictory for negated patterns: A path which matches a negated exclude pattern is NOT excluded and thus shouldn't be printed by the former logic, while it certainly does match one of the explicit patterns and thus should be printed by the latter logic. === Resolution == Since the second mode exists to find out which pattern matches given paths, and showing the user a pattern that begins with a '!' is sufficient for them to figure out whether the pattern is excluded, the existing behavior is desirable -- we just need to update the documentation to match the implementation (i.e. it is about printing which pattern is matched by paths, not about showing which paths are excluded). For the first or default mode, users just want to know whether a pattern is excluded. As such, the existing documentation is desirable; change the implementation to match the documented behavior. Finally, also adjust a few tests in t0008 that were caught up by this discrepancy in how negated paths were handled. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-18doc-diff: use single-colon rule in rendering MakefileLibravatar Jeff King1-1/+1
When rendering the troff manpages to text via "man", we create an ad-hoc Makefile and feed it to "make". The purpose here is two-fold: - reuse results from a prior interrupted render of the same tree - use make's -j option to build in parallel But the second part doesn't seem to work (at least with my version of GNU make, 4.2.1). It just runs one render at a time. We use a double-colon "all" rule for each file, like: all:: foo foo: ...actual render recipe... all:: bar bar: ...actual render recipe... ...and so on... And it's this double-colon that seems to inhibit the parallelism. We can just switch to a regular single-colon rule. Even though we do have multiple rules for "all" here, we don't have any recipe to execute for "all" (we only care about triggering its dependencies), so the distinction is irrelevant. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-18doc/config/push: use longer "--" line for preformatted exampleLibravatar Jeff King1-2/+2
The example for the push.pushOption config tries to create a preformatted section, but uses only two dashes in its "--" line. In AsciiDoc this is an "open block", with no type; the lines end up jumbled because they're formatted as paragraphs. We need four or more dashes to make it a "listing block" that will respect the linebreaks. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>