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2020-02-16t3432: make these tests work with either am or merge backendsLibravatar Elijah Newren1-26/+22
t3432 had several stress tests for can_fast_forward(), whose intent was to ensure we were using the optimization of just fast forwarding when possible. However, these tests verified that fast forwards had happened based on the output that rebase printed to the terminal. We can instead test more directly that we actually fast-forwarded by checking the reflog, which also has the side effect of making the tests applicable for the merge/interactive backend. This change does lose the distinction between "noop" and "noop-force", but as stated in commit c9efc216830f ("t3432: test for --no-ff's interaction with fast-forward", 2019-08-27) which introduced that distinction: "These tests aren't supposed to endorse the status quo, just test for what we're currently doing.". This change does not actually run these tests with the merge/interactive backend; instead this is just a preparatory commit. A subsequent commit which fixes can_fast_forward() to work with that backend will then also change t3432 to add tests of that backend as well. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-16rebase: fix handling of restrict_revisionLibravatar Elijah Newren1-1/+19
restrict_revision in the original shell script was an excluded revision range. It is also treated that way by the am-backend. In the conversion from shell to C (see commit 6ab54d17be3f ("rebase -i: implement the logic to initialize $revisions in C", 2018-08-28)), the interactive-backend accidentally treated it as a positive revision rather than a negated one. This was missed as there were no tests in the testsuite that tested an interactive rebase with fork-point behavior. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-16rebase: make sure to pass along the quiet flag to the sequencerLibravatar Elijah Newren1-1/+7
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-16t3406: simplify an already simple testLibravatar Elijah Newren1-5/+2
When the merge backend was re-implemented on top of the interactive backend, the output of rebase --merge changed a little. This change allowed this test to be simplified, though it wasn't noticed until now. Simplify the testcase a little. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-16rebase (interactive-backend): fix handling of commits that become emptyLibravatar Elijah Newren2-9/+65
As established in the previous commit and commit b00bf1c9a8dd (git-rebase: make --allow-empty-message the default, 2018-06-27), the behavior for rebase with different backends in various edge or corner cases is often more happenstance than design. This commit addresses another such corner case: commits which "become empty". A careful reader may note that there are two types of commits which would become empty due to a rebase: * [clean cherry-pick] Commits which are clean cherry-picks of upstream commits, as determined by `git log --cherry-mark ...`. Re-applying these commits would result in an empty set of changes and a duplicative commit message; i.e. these are commits that have "already been applied" upstream. * [become empty] Commits which are not empty to start, are not clean cherry-picks of upstream commits, but which still become empty after being rebased. This happens e.g. when a commit has changes which are a strict subset of the changes in an upstream commit, or when the changes of a commit can be found spread across or among several upstream commits. Clearly, in both cases the changes in the commit in question are found upstream already, but the commit message may not be in the latter case. When cherry-mark can determine a commit is already upstream, then because of how cherry-mark works this means the upstream commit message was about the *exact* same set of changes. Thus, the commit messages can be assumed to be fully interchangeable (and are in fact likely to be completely identical). As such, the clean cherry-pick case represents a case when there is no information to be gained by keeping the extra commit around. All rebase types have always dropped these commits, and no one to my knowledge has ever requested that we do otherwise. For many of the become empty cases (and likely even most), we will also be able to drop the commit without loss of information -- but this isn't quite always the case. Since these commits represent cases that were not clean cherry-picks, there is no upstream commit message explaining the same set of changes. Projects with good commit message hygiene will likely have the explanation from our commit message contained within or spread among the relevant upstream commits, but not all projects run that way. As such, the commit message of the commit being rebased may have reasoning that suggests additional changes that should be made to adapt to the new base, or it may have information that someone wants to add as a note to another commit, or perhaps someone even wants to create an empty commit with the commit message as-is. Junio commented on the "become-empty" types of commits as follows[1]: WRT a change that ends up being empty (as opposed to a change that is empty from the beginning), I'd think that the current behaviour is desireable one. "am" based rebase is solely to transplant an existing history and want to stop much less than "interactive" one whose purpose is to polish a series before making it publishable, and asking for confirmation ("this has become empty--do you want to drop it?") is more appropriate from the workflow point of view. [1] https://lore.kernel.org/git/xmqqfu1fswdh.fsf@gitster-ct.c.googlers.com/ I would simply add that his arguments for "am"-based rebases actually apply to all non-explicitly-interactive rebases. Also, since we are stating that different cases should have different defaults, it may be worth providing a flag to allow users to select which behavior they want for these commits. Introduce a new command line flag for selecting the desired behavior: --empty={drop,keep,ask} with the definitions: drop: drop commits which become empty keep: keep commits which become empty ask: provide the user a chance to interact and pick what to do with commits which become empty on a case-by-case basis In line with Junio's suggestion, if the --empty flag is not specified, pick defaults as follows: explicitly interactive: ask otherwise: drop Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-16rebase (interactive-backend): make --keep-empty the defaultLibravatar Elijah Newren3-14/+84
Different rebase backends have different treatment for commits which start empty (i.e. have no changes relative to their parent), and the --keep-empty option was added at some point to allow adjusting behavior. The handling of commits which start empty is actually quite similar to commit b00bf1c9a8dd (git-rebase: make --allow-empty-message the default, 2018-06-27), which pointed out that the behavior for various backends is often more happenstance than design. The specific change made in that commit is actually quite relevant as well and much of the logic there directly applies here. It makes a lot of sense in 'git commit' to error out on the creation of empty commits, unless an override flag is provided. However, once someone determines that there is a rare case that merits using the manual override to create such a commit, it is somewhere between annoying and harmful to have to take extra steps to keep such intentional commits around. Granted, empty commits are quite rare, which is why handling of them doesn't get considered much and folks tend to defer to existing (accidental) behavior and assume there was a reason for it, leading them to just add flags (--keep-empty in this case) that allow them to override the bad defaults. Fix the interactive backend so that --keep-empty is the default, much like we did with --allow-empty-message. The am backend should also be fixed to have --keep-empty semantics for commits that start empty, but that is not included in this patch other than a testcase documenting the failure. Note that there was one test in t3421 which appears to have been written expecting --keep-empty to not be the default as correct behavior. This test was introduced in commit 00b8be5a4d38 ("add tests for rebasing of empty commits", 2013-06-06), which was part of a series focusing on rebase topology and which had an interesting original cover letter at https://lore.kernel.org/git/1347949878-12578-1-git-send-email-martinvonz@gmail.com/ which noted Your input especially appreciated on whether you agree with the intent of the test cases. and then went into a long example about how one of the many tests added had several questions about whether it was correct. As such, I believe most the tests in that series were about testing rebase topology with as many different flags as possible and were not trying to state in general how those flags should behave otherwise. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-17t3404: directly test the behavior of interestLibravatar Elijah Newren1-3/+4
t3404.3 is a simple test added by commit d078c3910689 ("t3404: todo list with commented-out commands only aborts", 2018-08-10) which was designed to test a todo list that only contained commented-out commands. There were two problems with this test: (1) its title did not reflect the purpose of the test, and (2) it tested the desired behavior through a side-effect of other functionality instead of directly testing the desired behavior discussed in the commit message. Modify the test to directly test the desired behavior and update the test title. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-12Revert "Merge branch 'ra/rebase-i-more-options'"Libravatar Junio C Hamano2-131/+2
This reverts commit 5d9324e0f4210bb7d52bcb79efe3935703083f72, reversing changes made to c58ae96fc4bb11916b62a96940bb70bb85ea5992. The topic turns out to be too buggy for real use. cf. <f2fe7437-8a48-3315-4d3f-8d51fe4bb8f1@gmail.com>
2020-01-10Merge branch 'js/mingw-loosen-overstrict-tree-entry-checks'Libravatar Junio C Hamano1-1/+1
Further tweak to a "no backslash in indexed paths" for Windows port we applied earlier. * js/mingw-loosen-overstrict-tree-entry-checks: mingw: safeguard better against backslashes in file names
2020-01-10mingw: safeguard better against backslashes in file namesLibravatar Johannes Schindelin via GitGitGadget1-1/+1
In 224c7d70fa1 (mingw: only test index entries for backslashes, not tree entries, 2019-12-31), we relaxed the check for backslashes in tree entries to check only index entries. However, the code change was incorrect: it was added to `add_index_entry_with_check()`, not to `add_index_entry()`, so under certain circumstances it was possible to side-step the protection. Besides, the description of that commit purported that all index entries would be checked when in fact they were only checked when being added to the index (there are code paths that do not do that, constructing "transient" index entries). In any case, it was pointed out in one insightful review at https://github.com/git-for-windows/git/pull/2437#issuecomment-566771835 that it would be a much better idea to teach `verify_path()` to perform the check for a backslash. This is safer, even if it comes with two notable drawbacks: - `verify_path()` cannot say _what_ is wrong with the path, therefore the user will no longer be told that there was a backslash in the path, only that the path was invalid. - The `git apply` command also calls the `verify_path()` function, and might have been able to handle Windows-style paths (i.e. with backslashes instead of forward slashes). This will no longer be possible unless the user (temporarily) sets `core.protectNTFS=false`. Note that `git add <windows-path>` will _still_ work because `normalize_path_copy_len()` will convert the backslashes to forward slashes before hitting the code path that creates an index entry. The clear advantage is that `verify_path()`'s purpose is to check the validity of the file name, therefore we naturally tap into all the code paths that need safeguarding, also implicitly into future code paths. The benefits of that approach outweigh the downsides, so let's move the check from `add_index_entry_with_check()` to `verify_path()`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-08graph: fix lack of color in horizontal linesLibravatar Derrick Stolee1-0/+29
In some cases, horizontal lines in rendered graphs can lose their coloring. This is due to a use of graph_line_addch() instead of graph_line_write_column(). Using a ternary operator to pick the character is nice for compact code, but we actually need a column to provide the color. Add a test to t4215-log-skewed-merges.sh to prevent regression. Reported-by: Jeff King <peff@peff.net> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-08graph: drop assert() for merge with two collapsing parentsLibravatar Derrick Stolee1-0/+42
When "git log --graph" shows a merge commit that has two collapsing lines, like: | | | | * | |_|_|/| |/| | |/ | | |/| | |/| | | * | | * | | | we trigger an assert(): graph.c:1228: graph_output_collapsing_line: Assertion `graph->mapping[i - 3] == target' failed. The assert was introduced by eaf158f8 ("graph API: Use horizontal lines for more compact graphs", 2009-04-21), which is quite old. This assert is trying to say that when we complete a horizontal line with a single slash, it is because we have reached our target. It is actually the _second_ collapsing line that hits this assert. The reason we are in this code path is because we are collapsing the first line, and in that case we are hitting our target now that the horizontal line is complete. However, the second line cannot be a horizontal line, so it will collapse without horizontal lines. In this case, it is inappropriate to assert that we have reached our target, as we need to continue for another column before reaching the target. Dropping the assert is safe here. The new behavior in 0f0f389f12 (graph: tidy up display of left-skewed merges, 2019-10-15) caused the behavior change that made this assertion failure possible. In addition to making the assert possible, it also changed how multiple edges collapse. In a larger example, the current code will output a collapse as follows: | | | | | | * | |_|_|_|_|/|\ |/| | | | |/ / | | | | |/| / | | | |/| |/ | | |/| |/| | |/| |/| | | | |/| | | | | * | | | However, the intended collapse should allow multiple horizontal lines as follows: | | | | | | * | |_|_|_|_|/|\ |/| | | | |/ / | | |_|_|/| / | |/| | | |/ | | | |_|/| | | |/| | | | | * | | | This behavior is not corrected by this change, but is noted for a later update. Helped-by: Jeff King <peff@peff.net> Reported-by: Bradley Smith <brad@brad-smith.co.uk> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-06Merge branch 'ds/sparse-list-in-cone-mode'Libravatar Junio C Hamano1-0/+39
"git sparse-checkout list" subcommand learned to give its output in a more concise form when the "cone" mode is in effect. * ds/sparse-list-in-cone-mode: sparse-checkout: document interactions with submodules sparse-checkout: list directories in cone mode
2020-01-06Merge branch 'js/mingw-loosen-overstrict-tree-entry-checks'Libravatar Junio C Hamano1-3/+4
An earlier update to Git for Windows declared that a tree object is invalid if it has a path component with backslash in it, which was overly strict, which has been corrected. The only protection the Windows users need is to prevent such path (or any path that their filesystem cannot check out) from entering the index. * js/mingw-loosen-overstrict-tree-entry-checks: mingw: only test index entries for backslashes, not tree entries
2020-01-02mingw: only test index entries for backslashes, not tree entriesLibravatar Johannes Schindelin1-3/+4
During a clone of a repository that contained a file with a backslash in its name in the past, as of v2.24.1(2), Git for Windows prints errors like this: error: filename in tree entry contains backslash: '\' The idea is to prevent Git from even trying to write files with backslashes in their file names: while these characters are valid in file names on other platforms, on Windows it is interpreted as directory separator (which would obviously lead to ambiguities, e.g. when there is a file `a\b` and there is also a file `a/b`). Arguably, this is the wrong layer for that error: As long as the user never checks out the files whose names contain backslashes, there should not be any problem in the first place. So let's loosen the requirements: we now leave tree entries with backslashes in their file names alone, but we do require any entries that are added to the Git index to contain no backslashes on Windows. Note: just as before, the check is guarded by `core.protectNTFS` (to allow overriding the check by toggling that config setting), and it is _only_ performed on Windows, as the backslash is not a directory separator elsewhere, even when writing to NTFS-formatted volumes. An alternative approach would be to try to prevent creating files with backslashes in their file names. However, that comes with its own set of problems. For example, `git config -f C:\ProgramData\Git\config ...` is a very valid way to specify a custom config location, and we obviously do _not_ want to prevent that. Therefore, the approach chosen in this patch would appear to be better. This addresses https://github.com/git-for-windows/git/issues/2435 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-02Merge branch 'js/use-test-tool-on-path'Libravatar Junio C Hamano1-1/+1
Test fix. * js/use-test-tool-on-path: t3008: find test-tool through path lookup
2020-01-02Merge branch 'js/mingw-reserved-filenames'Libravatar Junio C Hamano1-2/+11
Forbid pathnames that the platform's filesystem cannot represent on MinGW. * js/mingw-reserved-filenames: mingw: refuse paths containing reserved names mingw: short-circuit the conversion of `/dev/null` to UTF-16
2019-12-30sparse-checkout: document interactions with submodulesLibravatar Derrick Stolee1-0/+28
Using 'git submodule (init|deinit)' a user can select a subset of submodules to populate. This behaves very similar to the sparse-checkout feature, but those directories contain their own .git directory including an object database and ref space. To have the sparse-checkout file also determine if those files should exist would easily cause problems. Therefore, keeping these features independent in this way is the best way forward. Also create a test that demonstrates this behavior to make sure it doesn't change as the sparse-checkout feature evolves. Reported-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-30sparse-checkout: list directories in cone modeLibravatar Derrick Stolee1-0/+11
When core.sparseCheckoutCone is enabled, the 'git sparse-checkout set' command takes a list of directories as input, then creates an ordered list of sparse-checkout patterns such that those directories are recursively included and all sibling entries along the parent directories are also included. Listing the patterns is less user-friendly than the directories themselves. In cone mode, and as long as the patterns match the expected cone-mode pattern types, change the output of 'git sparse-checkout list' to only show the directories that created the patterns. With this change, the following piped commands would not change the working directory: git sparse-checkout list | git sparse-checkout set --stdin The only time this would not work is if core.sparseCheckoutCone is true, but the sparse-checkout file contains patterns that do not match the expected pattern types for cone mode. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-27t3008: find test-tool through path lookupLibravatar Johannes Sixt1-1/+1
Do not use $GIT_BUILD_DIR without quotes; it may contain spaces and be split into fields. But it is not necessary to access test-tool with an absolute path in the first place as it can be found via path lookup. Remove the explicit path. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-25Merge branch 'en/fill-directory-fixes'Libravatar Junio C Hamano2-2/+216
Assorted fixes to the directory traversal API. * en/fill-directory-fixes: dir.c: use st_add3() for allocation size dir: consolidate similar code in treat_directory() dir: synchronize treat_leading_path() and read_directory_recursive() dir: fix checks on common prefix directory dir: break part of read_directory_recursive() out for reuse dir: exit before wildcard fall-through if there is no wildcard dir: remove stray quote character in comment Revert "dir.c: make 'git-status --ignored' work within leading directories" t3011: demonstrate directory traversal failures
2019-12-25Merge branch 'rs/test-cleanup'Libravatar Junio C Hamano5-5/+4
Test cleanup. * rs/test-cleanup: t6030: don't create unused file t5580: don't create unused file t3501: don't create unused file t7004: don't create unused file t4256: don't create unused file
2019-12-25Merge branch 'rs/xdiff-ignore-ws-w-func-context'Libravatar Junio C Hamano1-0/+23
Extend test coverage for a recent fix. * rs/xdiff-ignore-ws-w-func-context: t4015: improve coverage of function context test
2019-12-25Merge branch 'js/add-p-in-c'Libravatar Junio C Hamano1-0/+42
The effort to move "git-add--interactive" to C continues. * js/add-p-in-c: built-in add -p: show helpful hint when nothing can be staged built-in add -p: only show the applicable parts of the help text built-in add -p: implement the 'q' ("quit") command built-in add -p: implement the '/' ("search regex") command built-in add -p: implement the 'g' ("goto") command built-in add -p: implement hunk editing strbuf: add a helper function to call the editor "on an strbuf" built-in add -p: coalesce hunks after splitting them built-in add -p: implement the hunk splitting feature built-in add -p: show different prompts for mode changes and deletions built-in app -p: allow selecting a mode change as a "hunk" built-in add -p: handle deleted empty files built-in add -p: support multi-file diffs built-in add -p: offer a helpful error message when hunk navigation failed built-in add -p: color the prompt and the help text built-in add -p: adjust hunk headers as needed built-in add -p: show colored hunks by default built-in add -i: wire up the new C code for the `patch` command built-in add -i: start implementing the `patch` functionality in C
2019-12-25Merge branch 'ds/sparse-cone'Libravatar Junio C Hamano1-0/+332
Management of sparsely checked-out working tree has gained a dedicated "sparse-checkout" command. * ds/sparse-cone: (21 commits) sparse-checkout: improve OS ls compatibility sparse-checkout: respect core.ignoreCase in cone mode sparse-checkout: check for dirty status sparse-checkout: update working directory in-process for 'init' sparse-checkout: cone mode should not interact with .gitignore sparse-checkout: write using lockfile sparse-checkout: use in-process update for disable subcommand sparse-checkout: update working directory in-process sparse-checkout: sanitize for nested folders unpack-trees: add progress to clear_ce_flags() unpack-trees: hash less in cone mode sparse-checkout: init and set in cone mode sparse-checkout: use hashmaps for cone patterns sparse-checkout: add 'cone' mode trace2: add region in clear_ce_flags sparse-checkout: create 'disable' subcommand sparse-checkout: add '--stdin' option to set subcommand sparse-checkout: 'set' subcommand clone: add --sparse mode sparse-checkout: create 'init' subcommand ...
2019-12-25Merge branch 'sg/name-rev-wo-recursion'Libravatar Junio C Hamano1-16/+56
Redo "git name-rev" to avoid recursive calls. * sg/name-rev-wo-recursion: name-rev: cleanup name_ref() name-rev: eliminate recursion in name_rev() name-rev: use 'name->tip_name' instead of 'tip_name' name-rev: drop name_rev()'s 'generation' and 'distance' parameters name-rev: restructure creating/updating 'struct rev_name' instances name-rev: restructure parsing commits and applying date cutoff name-rev: pull out deref handling from the recursion name-rev: extract creating/updating a 'struct name_rev' into a helper t6120: add a test to cover inner conditions in 'git name-rev's name_rev() name-rev: use sizeof(*ptr) instead of sizeof(type) in allocation name-rev: avoid unnecessary cast in name_ref() name-rev: use strbuf_strip_suffix() in get_rev_name() t6120-describe: modernize the 'check_describe' helper t6120-describe: correct test repo history graph in comment
2019-12-25Merge branch 'ra/t5150-depends-on-perl'Libravatar Junio C Hamano1-0/+6
Some Porcelain commands are written in Perl, and tests on them are expected not to work when the platform lacks a working perl. * ra/t5150-depends-on-perl: t5150: skip request-pull test if Perl is disabled
2019-12-25Merge branch 'dl/format-patch-notes-config-fixup'Libravatar Junio C Hamano1-0/+32
"git format-patch" can take a set of configured format.notes values to specify which notes refs to use in the log message part of the output. The behaviour of this was not consistent with multiple --notes command line options, which has been corrected. * dl/format-patch-notes-config-fixup: notes.h: fix typos in comment notes: break set_display_notes() into smaller functions config/format.txt: clarify behavior of multiple format.notes format-patch: move git_config() before repo_init_revisions() format-patch: use --notes behavior for format.notes notes: extract logic into set_display_notes() notes: create init_display_notes() helper notes: rename to load_display_notes()
2019-12-25Merge branch 'am/pathspec-f-f-checkout'Libravatar Junio C Hamano4-0/+407
A few more commands learned the "--pathspec-from-file" command line option. * am/pathspec-f-f-checkout: checkout, restore: support the --pathspec-from-file option doc: restore: synchronize <pathspec> description doc: checkout: synchronize <pathspec> description doc: checkout: fix broken text reference doc: checkout: remove duplicate synopsis add: support the --pathspec-from-file option cmd_add: prepare for next patch
2019-12-25Merge branch 'am/pathspec-from-file'Libravatar Junio C Hamano1-0/+6
An earlier series to teach "--pathspec-from-file" to "git commit" forgot to make the option incompatible with "--all", which has been corrected. * am/pathspec-from-file: commit: forbid --pathspec-from-file --all
2019-12-21mingw: refuse paths containing reserved namesLibravatar Johannes Schindelin1-2/+11
There are a couple of reserved names that cannot be file names on Windows, such as `AUX`, `NUL`, etc. For an almost complete list, see https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file If one would try to create a directory named `NUL`, it would actually "succeed", i.e. the call would return success, but nothing would be created. Worse, even adding a file extension to the reserved name does not make it a valid file name. To understand the rationale behind that behavior, see https://devblogs.microsoft.com/oldnewthing/20031022-00/?p=42073 Let's just disallow them all. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-20sparse-checkout: improve OS ls compatibilityLibravatar Ed Maste1-14/+22
On FreeBSD, when executed by root ls enables the '-A' option: -A Include directory entries whose names begin with a dot (`.') except for . and ... Automatically set for the super-user unless -I is specified. As a result the .git directory appeared in the output when run as root. Simulate no-dotfile ls behaviour using a shell glob. Helped-by: Eric Wong <e@80x24.org> Helped-by: Junio C Hamano <gitster@pobox.com> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Ed Maste <emaste@FreeBSD.org> Acked-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-19dir: synchronize treat_leading_path() and read_directory_recursive()Libravatar Elijah Newren2-2/+2
Our optimization to avoid calling into read_directory_recursive() when all pathspecs have a common leading directory mean that we need to match the logic that read_directory_recursive() would use if we had just called it from the root. Since it does more than call treat_path() we need to copy that same logic. Alternatively, we could try to change treat_path to return path_recurse for an untracked directory under the given special circumstances that this logic checks for, but a simple switch results in many test failures such as 'git clean -d' not wiping out untracked but empty directories. To work around that, we'd need the caller of treat_path to check for path_recurse and sometimes special case it into path_untracked. In other words, we'd still have extra logic in both places. Needing to duplicate logic like this means it is guaranteed someone will eventually need to make further changes and forget to update both locations. It is tempting to just nuke the leading_directory special casing to avoid such bugs and simplify the code, but unpack_trees' verify_clean_subdirectory() also calls read_directory() and does so with a non-empty leading path, so I'm hesitant to try to restructure further. Add obnoxious warnings to treat_leading_path() and read_directory_recursive() to try to warn people of such problems. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-19dir: fix checks on common prefix directoryLibravatar Elijah Newren1-3/+3
Many years ago, the directory traversing logic had an optimization that would always recurse into any directory that was a common prefix of all the pathspecs without walking the leading directories to get down to the desired directory. Thus, git ls-files -o .git/ # case A would notice that .git/ was a common prefix of all pathspecs (since it is the only pathspec listed), and then traverse into it and start showing unknown files under that directory. Unfortunately, .git/ is not a directory we should be traversing into, which made this optimization problematic. This also affected cases like git ls-files -o --exclude-standard t/ # case B where t/ was in the .gitignore file and thus isn't interesting and shouldn't be recursed into. It also affected cases like git ls-files -o --directory untracked_dir/ # case C where untracked_dir/ is indeed untracked and thus interesting, but the --directory flag means we only want to show the directory itself, not recurse into it and start listing untracked files below it. The case B class of bugs were noted and fixed in commits 16e2cfa90993 ("read_directory(): further split treat_path()", 2010-01-08) and 48ffef966c76 ("ls-files: fix overeager pathspec optimization", 2010-01-08), with the idea being that we first wanted to check whether the common prefix was interesting. The former patch noted that treat_path() couldn't be used when checking the common prefix because treat_path() requires a dir_entry() and we haven't read any directories at the point we are checking the common prefix. So, that patch split treat_one_path() out of treat_path(). The latter patch then created a new treat_leading_path() which duplicated by hand the bits of treat_path() that couldn't be broken out and then called treat_one_path() for the remainder. There were three problems with this approach: * The duplicated logic in treat_leading_path() accidentally missed the check for special paths (such as is_dot_or_dotdot and matching ".git"), causing case A types of bugs to continue to be an issue. * The treat_leading_path() logic assumed we should traverse into anything where path_treatment was not path_none, i.e. it perpetuated class C types of bugs. * It meant we had split logic that needed to kept in sync, running the risk that people introduced new inconsistencies (such as in commit be8a84c52669, which we reverted earlier in this series, or in commit df5bcdf83ae which we'll fix in a subsequent commit) Fix most these problems by making treat_leading_path() not only loop over each leading path component, but calling treat_path() directly on each. To do so, we have to create a synthetic dir_entry, but that only takes a few lines. Then, pay attention to the path_treatment result we get from treat_path() and don't treat path_excluded, path_untracked, and path_recurse all the same as path_recurse. This leaves one remaining problem, the new inconsistency from commit df5bcdf83ae. That will be addressed in a subsequent commit. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-19t4015: improve coverage of function context testLibravatar René Scharfe1-0/+23
Add a test that includes an actual function line in the test file to check if context is expanded to include the whole function, and add an ignored change before function context to check if that one stays hidden while the originally ignored change within function context is shown. This differs from the existing test, which is concerned with the case where there is no function line at all in the file (and we might look past the beginning of the file). Helped-by: Jeff King <peff@peff.net> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-18commit: forbid --pathspec-from-file --allLibravatar Alexandr Miloslavskiy1-0/+6
I forgot this in my previous patch `--pathspec-from-file` for `git commit` [1]. When both `--pathspec-from-file` and `--all` were specified, `--all` took precedence and `--pathspec-from-file` was ignored. Before `--pathspec-from-file` was implemented, this case was prevented by this check in `parse_and_validate_options()` : die(_("paths '%s ...' with -a does not make sense"), argv[0]); It is unfortunate that these two cases are disconnected. This came as result of how the code was laid out before my patches, where `pathspec` is parsed outside of `parse_and_validate_options()`. This branch is already full of refactoring patches and I did not dare to go for another one. Fix by mirroring `die()` for `--pathspec-from-file` as well. [1] Commit e440fc58 ("commit: support the --pathspec-from-file option" 2019-11-19) Reported-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-18t3434: mark successful test as suchLibravatar Elijah Newren1-1/+1
t3434.3 was fixed by commit 917d0d6234be ("Merge branch 'js/rebase-r-safer-label'", 2019-12-05). t3434 did not exist in js/rebase-r-safer-label, so could not have marked the test as fixed, and it was probably not noticed that the merge fixed this test. Mark it as fixed now. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-18t6030: don't create unused fileLibravatar René Scharfe1-1/+1
my_bisect_log3.txt was added by c9c4e2d5a2 (bisect: only check merge bases when needed, 2008-08-22), but hasn't been used then and since. Get rid of it. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-18t5580: don't create unused fileLibravatar René Scharfe1-1/+1
The file "out" was introduced by 13b57da833 (mingw: verify that paths are not mistaken for remote nicknames, 2017-05-29), but has not actually been used then and since. Get rid of it. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-18t3501: don't create unused fileLibravatar René Scharfe1-1/+1
The file "out" became unused with fd53b7ffd1 (merge-recursive: improve add_cacheinfo error handling, 2018-04-19); get rid of it. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-16Merge branch 'js/t3404-indent-fix'Libravatar Junio C Hamano1-5/+5
Test cleanup. * js/t3404-indent-fix: t3404: fix indentation
2019-12-16Merge branch 'sg/t9300-robustify'Libravatar Junio C Hamano1-4/+16
The test on "fast-import" used to get stuck when "fast-import" died in the middle. * sg/t9300-robustify: t9300-fast-import: don't hang if background fast-import exits too early t9300-fast-import: store the PID in a variable instead of pidfile
2019-12-16Merge branch 'js/add-i-a-bit-more-tests'Libravatar Junio C Hamano1-8/+82
Test coverage update in preparation for further work on "git add -i". * js/add-i-a-bit-more-tests: apply --allow-overlap: fix a corner case git add -p: use non-zero exit code when the diff generation failed t3701: verify that the diff.algorithm config setting is handled t3701: verify the shown messages when nothing can be added t3701: add a test for the different `add -p` prompts t3701: avoid depending on the TTY prerequisite t3701: add a test for advanced split-hunk editing
2019-12-16Merge branch 'dl/range-diff-with-notes'Libravatar Junio C Hamano1-1/+1
Code clean-up. * dl/range-diff-with-notes: range-diff: clear `other_arg` at end of function range-diff: mark pointers as const t3206: fix incorrect test name
2019-12-16Merge branch 'rs/xdiff-ignore-ws-w-func-context'Libravatar Junio C Hamano1-5/+1
The "diff" machinery learned not to lose added/removed blank lines in the context when --ignore-blank-lines and --function-context are used at the same time. * rs/xdiff-ignore-ws-w-func-context: xdiff: unignore changes in function context
2019-12-16Merge branch 'dl/rebase-with-autobase'Libravatar Junio C Hamano2-5/+15
"git rebase" did not work well when format.useAutoBase configuration variable is set, which has been corrected. * dl/rebase-with-autobase: rebase: fix format.useAutoBase breakage format-patch: teach --no-base t4014: use test_config() format-patch: fix indentation t3400: demonstrate failure with format.useAutoBase
2019-12-16Merge branch 'dl/test-cleanup'Libravatar Junio C Hamano12-323/+425
Test cleanup. * dl/test-cleanup: (26 commits) t7700: stop losing return codes of git commands t7700: make references to SHA-1 generic t7700: replace egrep with grep t7700: consolidate code into test_has_duplicate_object() t7700: consolidate code into test_no_missing_in_packs() t7700: s/test -f/test_path_is_file/ t7700: move keywords onto their own line t7700: remove spaces after redirect operators t7700: drop redirections to /dev/null t7501: stop losing return codes of git commands t7501: remove spaces after redirect operators t5703: stop losing return codes of git commands t5703: simplify one-time-sed generation logic t5317: use ! grep to check for no matching lines t5317: stop losing return codes of git commands t4138: stop losing return codes of git commands t4015: use test_write_lines() t4015: stop losing return codes of git commands t3600: comment on inducing SIGPIPE in `git rm` t3600: stop losing return codes of git commands ...
2019-12-16Merge branch 'cs/store-packfiles-in-hashmap'Libravatar Junio C Hamano1-0/+18
In a repository with many packfiles, the cost of the procedure that avoids registering the same packfile twice was unnecessarily high by using an inefficient search algorithm, which has been corrected. * cs/store-packfiles-in-hashmap: packfile.c: speed up loading lots of packfiles
2019-12-16fix-typo: consecutive-word duplicationsLibravatar ryenus1-1/+1
Correct unintentional duplication(s) of words, such as "the the", and "can can" etc. The changes are only applied to cases where it's fixing what is clearly wrong or prone to misunderstanding, as suggested by the reviewers. Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de> Helped-by: Denton Liu <liu.denton@gmail.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: ryenus <ryenus@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-13built-in add -p: implement the '/' ("search regex") commandLibravatar Johannes Schindelin1-0/+14
This patch implements the hunk searching feature in the C version of `git add -p`. A test is added to verify that this behavior matches the one of the Perl version of `git add -p`. Note that this involves a change of behavior: the Perl version uses (of course) the Perl flavor of regular expressions, while this patch uses the regcomp()/regexec(), i.e. POSIX extended regular expressions. In practice, this behavior change is unlikely to matter. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>