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2021-09-20Merge branch 'jk/t5562-racefix'Libravatar Junio C Hamano1-8/+8
Test update. * jk/t5562-racefix: t5562: use alarm() to interrupt timed child-wait
2021-09-20Merge branch 'ds/mergies-with-sparse-index'Libravatar Junio C Hamano1-10/+82
Various mergy operations have been prepared to work efficiently with the sparse index. * ds/mergies-with-sparse-index: sparse-index: integrate with cherry-pick and rebase sequencer: ensure full index if not ORT strategy t1092: add cherry-pick, rebase tests merge-ort: expand only for out-of-cone conflicts merge: make sparse-aware with ORT diff: ignore sparse paths in diffstat
2021-09-20Merge branch 'ds/sparse-index-ignored-files'Libravatar Junio C Hamano2-17/+80
In cone mode, the sparse-index code path learned to remove ignored files (like build artifacts) outside the sparse cone, allowing the entire directory outside the sparse cone to be removed, which is especially useful when the sparse patterns change. * ds/sparse-index-ignored-files: sparse-checkout: clear tracked sparse dirs sparse-index: add SPARSE_INDEX_MEMORY_ONLY flag attr: be careful about sparse directories sparse-checkout: create helper methods sparse-index: use WRITE_TREE_MISSING_OK sparse-index: silently return when cache tree fails unpack-trees: fix nested sparse-dir search sparse-index: silently return when not using cone-mode patterns t7519: rewrite sparse index test
2021-09-20Merge branch 'ab/serve-cleanup'Libravatar Junio C Hamano2-5/+170
Code clean-up around "git serve". * ab/serve-cleanup: upload-pack: document and rename --advertise-refs serve.[ch]: remove "serve_options", split up --advertise-refs code {upload,receive}-pack tests: add --advertise-refs tests serve.c: move version line to advertise_capabilities() serve: move transfer.advertiseSID check into session_id_advertise() serve.[ch]: don't pass "struct strvec *keys" to commands serve: use designated initializers transport: use designated initializers transport: rename "fetch" in transport_vtable to "fetch_refs" serve: mark has_capability() as static
2021-09-20Merge branch 'dt/submodule-diff-fixes'Libravatar Junio C Hamano1-8/+151
"git diff --submodule=diff" showed failure from run_command() when trying to run diff inside a submodule, when the user manually removes the submodule directory. * dt/submodule-diff-fixes: diff --submodule=diff: don't print failure message twice diff --submodule=diff: do not fail on ever-initialied deleted submodules t4060: remove unused variable
2021-09-20Merge branch 'lh/systemd-timers'Libravatar Junio C Hamano1-6/+108
"git maintenance" scheduler learned to use systemd timers as a possible backend. * lh/systemd-timers: maintenance: add support for systemd timers on Linux maintenance: `git maintenance run` learned `--scheduler=<scheduler>` cache.h: Introduce a generic "xdg_config_home_for(…)" function
2021-09-20Merge branch 'jt/grep-wo-submodule-odb-as-alternate'Libravatar Junio C Hamano2-0/+13
The code to make "git grep" recurse into submodules has been updated to migrate away from the "add submodule's object store as an alternate object store" mechanism (which is suboptimal). * jt/grep-wo-submodule-odb-as-alternate: t7814: show lack of alternate ODB-adding submodule-config: pass repo upon blob config read grep: add repository to OID grep sources grep: allocate subrepos on heap grep: read submodule entry with explicit repo grep: typesafe versions of grep_source_init grep: use submodule-ODB-as-alternate lazy-addition submodule: lazily add submodule ODBs as alternates
2021-09-20Merge branch 'tb/multi-pack-bitmaps'Libravatar Junio C Hamano11-296/+753
The reachability bitmap file used to be generated only for a single pack, but now we've learned to generate bitmaps for history that span across multiple packfiles. * tb/multi-pack-bitmaps: (29 commits) pack-bitmap: drop bitmap_index argument from try_partial_reuse() pack-bitmap: drop repository argument from prepare_midx_bitmap_git() p5326: perf tests for MIDX bitmaps p5310: extract full and partial bitmap tests midx: respect 'GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP' t7700: update to work with MIDX bitmap test knob t5319: don't write MIDX bitmaps in t5319 t5310: disable GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP t0410: disable GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP t5326: test multi-pack bitmap behavior t/helper/test-read-midx.c: add --checksum mode t5310: move some tests to lib-bitmap.sh pack-bitmap: write multi-pack bitmaps pack-bitmap: read multi-pack bitmaps pack-bitmap.c: avoid redundant calls to try_partial_reuse pack-bitmap.c: introduce 'bitmap_is_preferred_refname()' pack-bitmap.c: introduce 'nth_bitmap_object_oid()' pack-bitmap.c: introduce 'bitmap_num_objects()' midx: avoid opening multiple MIDXs when writing midx: close linked MIDXs, avoid leaking memory ...
2021-09-15Merge branch 'pb/test-use-user-env'Libravatar Junio C Hamano3-21/+103
Teach "test_pause" and "debug" helpers to allow using the HOME and TERM environment variables the user usually uses. * pb/test-use-user-env: test-lib-functions: keep user's debugger config files and TERM in 'debug' test-lib-functions: optionally keep HOME, TERM and SHELL in 'test_pause' test-lib-functions: use 'TEST_SHELL_PATH' in 'test_pause'
2021-09-15Merge branch 'jc/trivial-threeway-binary-merge'Libravatar Junio C Hamano1-0/+45
The "git apply -3" code path learned not to bother the lower level merge machinery when the three-way merge can be trivially resolved without the content level merge. * jc/trivial-threeway-binary-merge: apply: resolve trivial merge without hitting ll-merge with "--3way"
2021-09-15Merge branch 'ab/send-email-config-fix'Libravatar Junio C Hamano1-0/+15
Regression fix. * ab/send-email-config-fix: send-email: fix a "first config key wins" regression in v2.33.0
2021-09-10Merge branch 'jk/log-warn-on-bogus-encoding'Libravatar Junio C Hamano1-0/+7
Doc update plus improved error reporting. * jk/log-warn-on-bogus-encoding: docs: use "character encoding" to refer to commit-object encoding logmsg_reencode(): warn when iconv() fails
2021-09-10Merge branch 'mk/clone-recurse-submodules'Libravatar Junio C Hamano1-0/+12
After "git clone --recurse-submodules", all submodules are cloned but they are not by default recursed into by other commands. With submodule.stickyRecursiveClone configuration set, submodule.recurse configuration is set to true in a repository created by "clone" with "--recurse-submodules" option. * mk/clone-recurse-submodules: clone: set submodule.recurse=true if submodule.stickyRecursiveClone enabled
2021-09-10Merge branch 'uk/userdiff-php-enum'Libravatar Junio C Hamano1-0/+4
Update the userdiff pattern for PHP. * uk/userdiff-php-enum: userdiff: support enum keyword in PHP hunk header
2021-09-10Merge branch 'tk/fast-export-anonymized-tag-fix'Libravatar Junio C Hamano1-4/+6
The output from "git fast-export", when its anonymization feature is in use, showed an annotated tag incorrectly. * tk/fast-export-anonymized-tag-fix: fast-export: fix anonymized tag using original length
2021-09-10Merge branch 'ab/commit-graph-usage'Libravatar Junio C Hamano1-0/+19
Fixes on usage message from "git commit-graph". * ab/commit-graph-usage: commit-graph: show "unexpected subcommand" error commit-graph: show usage on "commit-graph [write|verify] garbage" commit-graph: early exit to "usage" on !argc multi-pack-index: refactor "goto usage" pattern commit-graph: use parse_options_concat() commit-graph: remove redundant handling of -h commit-graph: define common usage with a macro
2021-09-10Merge branch 'mh/send-email-reset-in-reply-to'Libravatar Junio C Hamano1-0/+45
Even when running "git send-email" without its own threaded discussion support, a threading related header in one message is carried over to the subsequent message to result in an unwanted threading, which has been corrected. * mh/send-email-reset-in-reply-to: send-email: avoid incorrect header propagation
2021-09-10Merge branch 'sg/set-ceiling-during-tests'Libravatar Junio C Hamano1-1/+2
Buggy tests could damage repositories outside the throw-away test area we created. We now by default export GIT_CEILING_DIRECTORIES to limit the damage from such a stray test. * sg/set-ceiling-during-tests: test-lib: set GIT_CEILING_DIRECTORIES to protect the surrounding repository
2021-09-10Merge branch 'ka/want-ref-in-namespace'Libravatar Junio C Hamano1-36/+172
"git upload-pack" which runs on the other side of "git fetch" forgot to take the ref namespaces into account when handling want-ref requests. * ka/want-ref-in-namespace: docs: clarify the interaction of transfer.hideRefs and namespaces upload-pack.c: treat want-ref relative to namespace t5730: introduce fetch command helper
2021-09-10Merge branch 'zh/cherry-pick-advice'Libravatar Junio C Hamano2-7/+26
The advice message that "git cherry-pick" gives when it asks conflicted replay of a commit to be resolved by the end user has been updated. * zh/cherry-pick-advice: cherry-pick: use better advice message
2021-09-09t5562: use alarm() to interrupt timed child-waitLibravatar Jeff King1-8/+8
The t5562 script occasionally takes 60 extra seconds to complete due to a race condition in the invoke-with-content-length.pl helper. The way it's supposed to work is this: - we set up a SIGCLD handler - we kick off http-backend and write to it with a set content-length, but _don't_ close the pipe - we sleep for 60 seconds, assuming that SIGCLD from http-backend finishing will interrupt us - after the sleep finishes (whetherby 60 seconds or because it was interrupted by the signal), we check a flag to see if our SIGCLD handler was called. If not, then we complain. This usually completes immediately, because the signal interrupts our sleep. But very occasionally the child process dies _before_ we hit the sleep, so we don't realize it. The test still completes successfully (because our $exited flag is set), but it takes an extra 60 seconds. There's no way to check the flag and sleep atomically. So the best we can do with this approach is to sleep in smaller chunks (say, 1 second) and check the flag incrementally. Then we waste a maximum of 1 second if we lose the race. This was proposed in: https://lore.kernel.org/git/20190218205028.32486-1-max@max630.net/ and it does work. But we can do better. Instead of blocking on sleep and waiting for the child signal to interrupt us, we can block on the child exiting and set an alarm signal to trigger the timeout. This lets us exit the script immediately when the child behaves (with no race possible), and wait a maximum of 60 seconds when it doesn't. Note one small subtlety: perl is very willing to restart the waitpid() call after the alarm is delivered, even if we've thrown an exception via die. "perldoc -f alarm" claims you can get around this with an eval/die combo (and even has some example code), but it doesn't seem to work for me with waitpid(); instead, we continue waiting until the child exits. So instead, we'll instruct the child process to exit in the alarm handler itself. In the original code this was done by calling close($out). That would continue to work, since our child is always http-backend, which should exit when its stdin closes. But we can be even more robust against a hung or confused child by sending a KILL signal, which should terminate it immediately. Reported-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-09sparse-index: integrate with cherry-pick and rebaseLibravatar Derrick Stolee1-2/+37
The hard work was already done with 'git merge' and the ORT strategy. Just add extra tests to see that we get the expected results in the non-conflict cases. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-09t1092: add cherry-pick, rebase testsLibravatar Derrick Stolee1-6/+9
Add tests to check that cherry-pick and rebase behave the same in the sparse-index case as in the full index cases. These tests are agnostic to GIT_TEST_MERGE_ALGORITHM, so a full CI test suite will check both the 'ort' and 'recursive' strategies on this test. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-09merge-ort: expand only for out-of-cone conflictsLibravatar Derrick Stolee1-2/+28
Merge conflicts happen often enough to want to avoid expanding a sparse index when they happen, as long as those conflicts are within the sparse-checkout cone. If a conflict exists outside of the sparse-checkout cone, then we still need to expand before iterating over the index entries. This is critical to do in advance because of how the original_cache_nr is tracked to allow inserting and replacing cache entries. Iterate over the conflicted files and check if any paths are outside of the sparse-checkout cone. If so, then expand the full index. Add a test that demonstrates that we do not expand the index, even when we hit a conflict within the sparse-checkout cone. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-09merge: make sparse-aware with ORTLibravatar Derrick Stolee1-2/+10
Allow 'git merge' to operate without expanding a sparse index, at least not immediately. The index still will be expanded in a few cases: 1. If the merge strategy is 'recursive', then we enable command_requires_full_index at the start of the merge_recursive() method. We expect sparse-index users to also have the 'ort' strategy enabled. 2. With the 'ort' strategy, if the merge results in a conflicted file, then we expand the index before updating the working tree. The loop that iterates over the worktree replaces index entries and tracks 'origintal_cache_nr' which can become completely wrong if the index expands in the middle of the operation. This safety valve is important before that loop starts. A later change will focus this to only expand if we indeed have a conflict outside of the sparse-checkout cone. 3. Other merge strategies are executed as a 'git merge-X' subcommand, and those strategies are currently protected with the 'command_requires_full_index' guard. Some test updates are required, including a mistaken 'git checkout -b' that did not specify the base branch, causing merges to be fast-forward merges. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-08Merge branch 'sg/column-nl'Libravatar Junio C Hamano1-0/+18
The parser for the "--nl" option of "git column" has been corrected. * sg/column-nl: column: fix parsing of the '--nl' option
2021-09-08Merge branch 'rs/branch-allow-deleting-dangling'Libravatar Junio C Hamano1-0/+13
"git branch -D <branch>" used to refuse to remove a broken branch ref that points at a missing commit, which has been corrected. * rs/branch-allow-deleting-dangling: branch: allow deleting dangling branches with --force
2021-09-08Merge branch 'mt/quiet-with-delayed-checkout'Libravatar Junio C Hamano1-0/+71
The delayed checkout code path in "git checkout" etc. were chatty even when --quiet and/or --no-progress options were given. * mt/quiet-with-delayed-checkout: checkout: make delayed checkout respect --quiet and --no-progress
2021-09-08Merge branch 'dd/diff-files-unmerged-fix'Libravatar Junio C Hamano1-0/+53
"git diff --relative" segfaulted and/or produced incorrect result when there are unmerged paths. * dd/diff-files-unmerged-fix: diff-lib: ignore paths that are outside $cwd if --relative asked
2021-09-08Merge branch 'dd/t6300-wo-gpg-fix'Libravatar Junio C Hamano1-11/+18
Test fix. * dd/t6300-wo-gpg-fix: t6300: check for cat-file exit status code t6300: don't run cat-file on non-existent object
2021-09-08Merge branch 'jk/t5323-no-pack-test-fix'Libravatar Junio C Hamano1-2/+2
Test fix. * jk/t5323-no-pack-test-fix: t5323: drop mentions of "master"
2021-09-08Merge branch 'js/maintenance-launchctl-fix'Libravatar Junio C Hamano1-0/+17
"git maintenance" scheduler fix for macOS. * js/maintenance-launchctl-fix: maintenance: skip bootout/bootstrap when plist is registered maintenance: create `launchctl` configuration using a lock file
2021-09-08Merge branch 'ab/ls-remote-packet-trace'Libravatar Junio C Hamano1-3/+3
Debugging aid fix. * ab/ls-remote-packet-trace: ls-remote: set packet_trace_identity(<name>)
2021-09-08Merge branch 'ga/send-email-sendmail-cmd'Libravatar Junio C Hamano1-1/+1
Test fix. * ga/send-email-sendmail-cmd: t9001: PATH must not use Windows-style paths
2021-09-08Merge branch 'me/t5582-cleanup'Libravatar Junio C Hamano1-1/+0
Test fix. * me/t5582-cleanup: t5582: remove spurious 'cd "$D"' line
2021-09-08t7814: show lack of alternate ODB-addingLibravatar Jonathan Tan1-0/+3
The previous patches have made "git grep" no longer need to add submodule ODBs as alternates, at least for the code paths tested in t7814. Demonstrate this by making adding a submodule ODB as an alternate fatal in this test. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Reviewed-by: Emily Shaffer <emilyshaffer@google.com> Reviewed-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-08submodule: lazily add submodule ODBs as alternatesLibravatar Jonathan Tan1-0/+10
Teach Git to add submodule ODBs as alternates to the object store of the_repository only upon the first access of an object not in the_repository, and not when add_submodule_odb() is called. This provides a means of gradually migrating from accessing a submodule's object through alternates to accessing a submodule's object by explicitly passing its repository object. Any Git command can declare that it might access submodule objects by calling add_submodule_odb() (as they do now), but the submodule ODBs themselves will not be added until needed, so individual commands and/or combinations of arguments can be migrated one by one. [The advantage of explicit repository-object passing is code clarity (it is clear which repository an object read is from), performance (there is no need to linearly search through all submodule ODBs whenever an object is accessed from any repository, whether superproject or submodule), and the possibility of future features like partial clone submodules (which right now is not possible because if an object is missing, we do not know which repository to lazy-fetch into).] This commit also introduces an environment variable that a test may set to make the actual registration of alternates fatal, in order to demonstrate that its codepaths do not need this registration. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Reviewed-by: Emily Shaffer <emilyshaffer@google.com> Reviewed-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-07sparse-checkout: clear tracked sparse dirsLibravatar Derrick Stolee1-0/+59
When changing the scope of a sparse-checkout using cone mode, we might have some tracked directories go out of scope. The current logic removes the tracked files from within those directories, but leaves the ignored files within those directories. This is a bit unexpected to users who have given input to Git saying they don't need those directories anymore. This is something that is new to the cone mode pattern type: the user has explicitly said "I want these directories and _not_ those directories." The typical sparse-checkout patterns more generally apply to "I want files with with these patterns" so it is natural to leave ignored files as they are. This focus on directories in cone mode provides us an opportunity to change the behavior. Leaving these ignored files in the sparse directories makes it impossible to gain performance benefits in the sparse index. When we track into these directories, we need to know if the files are ignored or not, which might depend on the _tracked_ .gitignore file(s) within the sparse directory. This depends on the indexed version of the file, so the sparse directory must be expanded. We must take special care to look for untracked, non-ignored files in these directories before deleting them. We do not want to delete any meaningful work that the users were doing in those directories and perhaps forgot to add and commit before switching sparse-checkout definitions. Since those untracked files might be code files that generated ignored build output, also do not delete any ignored files from these directories in that case. The users can recover their state by resetting their sparse-checkout definition to include that directory and continue. Alternatively, they can see the warning that is presented and delete the directory themselves to regain the performance they expect. By deleting the sparse directories when changing scope (or running 'git sparse-checkout reapply') we regain these performance benefits as if the repository was in a clean state. Since these ignored files are frequently build output or helper files from IDEs, the users should not need the files now that the tracked files are removed. If the tracked files reappear, then they will have newer timestamps than the build artifacts, so the artifacts will need to be regenerated anyway. Use the sparse-index as a data structure in order to find the sparse directories that can be safely deleted. Re-expand the index to a full one if it was full before. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-07t7519: rewrite sparse index testLibravatar Derrick Stolee1-17/+21
The sparse index is tested with the FS Monitor hook and extension since f8fe49e (fsmonitor: integrate with sparse index, 2021-07-14). This test was very fragile because it shared an index across sparse and non-sparse behavior. Since that expansion and contraction could cause the index to lose its FS Monitor bitmap and token, behavior is fragile to changes in 'git sparse-checkout set'. Rewrite the test to use two clones of the original repo: full and sparse. This allows us to also keep the test files (actual, expect, trace2.txt) out of the repos we are testing with 'git status'. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-07send-email: fix a "first config key wins" regression in v2.33.0Libravatar Ævar Arnfjörð Bjarmason1-0/+15
Fix a regression in my c95e3a3f0b8 (send-email: move trivial config handling to Perl, 2021-05-28) where we'd pick the first config key out of multiple defined ones, instead of using the normal "last key wins" semantics of "git config --get". This broke e.g. cases where a .git/config would have a different sendemail.smtpServer than ~/.gitconfig. We'd pick the ~/.gitconfig over .git/config, instead of preferring the repository-local version. The same would go for /etc/gitconfig etc. The full list of impacted config keys (the %config_settings values which are references to scalars, not arrays) is: sendemail.smtpencryption sendemail.smtpserver sendemail.smtpserverport sendemail.smtpuser sendemail.smtppass sendemail.smtpdomain sendemail.smtpauth sendemail.smtpbatchsize sendemail.smtprelogindelay sendemail.tocmd sendemail.cccmd sendemail.aliasfiletype sendemail.envelopesender sendemail.confirm sendemail.from sendemail.assume8bitencoding sendemail.composeencoding sendemail.transferencoding sendemail.sendmailcmd I.e. having any of these set in say ~/.gitconfig and in-repo .git/config regressed in v2.33.0 to prefer the --global one over the --local. To test this add a test of config priority to one of these config variables, most don't have tests at all, but there was an existing one for sendemail.8bitEncoding. The "git config" (instead of "test_config") is somewhat of an anti-pattern, but follows established conventions in t9001-send-email.sh, likewise with any other pattern or idiom in this test. The populating of home/.gitconfig and setting of HOME= is copied from a test in t0017-env-helper.sh added in 1ff750b128e (tests: make GIT_TEST_GETTEXT_POISON a boolean, 2019-06-21). This test fails without this bugfix, but now it works. Reported-by: Eli Schwartz <eschwartz@archlinux.org> Tested-by: Eli Schwartz <eschwartz@archlinux.org> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-07maintenance: add support for systemd timers on LinuxLibravatar Lénaïc Huard1-6/+61
The existing mechanism for scheduling background maintenance is done through cron. On Linux systems managed by systemd, systemd provides an alternative to schedule recurring tasks: systemd timers. The main motivations to implement systemd timers in addition to cron are: * cron is optional and Linux systems running systemd might not have it installed. * The execution of `crontab -l` can tell us if cron is installed but not if the daemon is actually running. * With systemd, each service is run in its own cgroup and its logs are tagged by the service inside journald. With cron, all scheduled tasks are running in the cron daemon cgroup and all the logs of the user-scheduled tasks are pretended to belong to the system cron service. Concretely, a user that doesn’t have access to the system logs won’t have access to the log of their own tasks scheduled by cron whereas they will have access to the log of their own tasks scheduled by systemd timer. Although `cron` attempts to send email, that email may go unseen by the user because these days, local mailboxes are not heavily used anymore. In order to schedule git maintenance, we need two unit template files: * ~/.config/systemd/user/git-maintenance@.service to define the command to be started by systemd and * ~/.config/systemd/user/git-maintenance@.timer to define the schedule at which the command should be run. Those units are templates that are parameterized by the frequency. Based on those templates, 3 timers are started: * git-maintenance@hourly.timer * git-maintenance@daily.timer * git-maintenance@weekly.timer The command launched by those three timers are the same as with the other scheduling methods: /path/to/git for-each-repo --exec-path=/path/to --config=maintenance.repo maintenance run --schedule=%i with the full path for git to ensure that the version of git launched for the scheduled maintenance is the same as the one used to run `maintenance start`. The timer unit contains `Persistent=true` so that, if the computer is powered down when a maintenance task should run, the task will be run when the computer is back powered on. Signed-off-by: Lénaïc Huard <lenaic@lhuard.fr> Acked-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-07maintenance: `git maintenance run` learned `--scheduler=<scheduler>`Libravatar Lénaïc Huard1-4/+51
Depending on the system, different schedulers can be used to schedule the hourly, daily and weekly executions of `git maintenance run`: * `launchctl` for MacOS, * `schtasks` for Windows and * `crontab` for everything else. `git maintenance run` now has an option to let the end-user explicitly choose which scheduler he wants to use: `--scheduler=auto|crontab|launchctl|schtasks`. When `git maintenance start --scheduler=XXX` is run, it not only registers `git maintenance run` tasks in the scheduler XXX, it also removes the `git maintenance run` tasks from all the other schedulers to ensure we cannot have two schedulers launching concurrent identical tasks. The default value is `auto` which chooses a suitable scheduler for the system. `git maintenance stop` doesn't have any `--scheduler` parameter because this command will try to remove the `git maintenance run` tasks from all the available schedulers. Signed-off-by: Lénaïc Huard <lenaic@lhuard.fr> Acked-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-07test-lib-functions: keep user's debugger config files and TERM in 'debug'Libravatar Philippe Blain2-16/+50
The 'debug' function in test-lib-functions.sh is used to invoke a debugger at a specific line in a test. It inherits the value of HOME and TERM set by 'test-lib.sh': HOME="$TRASH_DIRECTORY" and TERM=dumb. Changing the value of HOME means that any customization configured in a developers' debugger configuration file (like $HOME/.gdbinit or $HOME/.lldbinit) are not available in the debugger invoked by 'test_pause'. Changing the value of TERM to 'dumb' means that colored output is disabled in the debugger. To make the debugging experience with 'debug' more pleasant, leverage the variable USER_HOME, added in the previous commit, to copy a developer's ~/.gdbinit and ~/.lldbinit to the test HOME. We do not set HOME to USER_HOME as in 'test_pause' to avoid user configuration in $USER_HOME/.gitconfig from interfering with the command being debugged. Also, add a flag to launch the debugger with the original value of TERM, and add the same warning as for 'test_pause'. Helped-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Acked-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-07test-lib-functions: optionally keep HOME, TERM and SHELL in 'test_pause'Libravatar Philippe Blain3-5/+53
The 'test_pause' function, which is designed to help interactive debugging and exploration of tests, currently inherits the value of HOME and TERM set by 'test-lib.sh': HOME="$TRASH_DIRECTORY" and TERM=dumb. It also invokes the shell defined by TEST_SHELL_PATH, which defaults to /bin/sh (through SHELL_PATH). Changing the value of HOME means that any customization configured in a developers' shell startup files and any Git aliases defined in their global Git configuration file are not available in the shell invoked by 'test_pause'. Changing the value of TERM to 'dumb' means that colored output is disabled for all commands in that shell. Using /bin/sh as the shell invoked by 'test_pause' is not ideal since some platforms (i.e. Debian and derivatives) use Dash as /bin/sh, and this shell is usually compiled without readline support, which makes for a poor interactive command line experience. To make the interactive command line experience in the shell invoked by 'test_pause' more pleasant, save the values of HOME and TERM in USER_HOME and USER_TERM before changing them in test-lib.sh, and add options to 'test_pause' to optionally use these variables to invoke the shell. Also add an option to invoke SHELL instead of TEST_SHELL_PATH, so that developer's interactive shell is used. We use options instead of changing the behaviour unconditionally since these three variables can slightly change command behaviour. Moreover, using the original HOME means commands could overwrite files in a user's home directory. Be explicit about these caveats in the new 'Usage' section in test-lib-functions.sh. Finally, add '[options]' to the test_pause synopsys in t/README, and mention that the full list of helper functions and their options can be found in test-lib-functions.sh. Helped-by: Elijah Newren <newren@gmail.com> Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Acked-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-07test-lib-functions: use 'TEST_SHELL_PATH' in 'test_pause'Libravatar Philippe Blain1-1/+1
3f824e91c8 (t/Makefile: introduce TEST_SHELL_PATH, 2017-12-08) made it easy to use a different shell for the tests than 'SHELL_PATH' used at compile time. But 'test_pause' still invokes 'SHELL_PATH'. If TEST_SHELL_PATH is set, invoke that shell in 'test_pause' for consistency. Suggested-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Acked-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-05apply: resolve trivial merge without hitting ll-merge with "--3way"Libravatar Junio C Hamano1-0/+45
The ll_binary_merge() function assumes that the ancestor blob is different from either side of the new versions, and always fails the merge in conflict, unless -Xours or -Xtheirs is in effect. The normal "merge" machineries all resolve the trivial cases (e.g. if our side changed while their side did not, the result is ours) without triggering the file-level merge drivers, so the assumption is warranted. The code path in "git apply --3way", however, does not check for the trivial three-way merge situation and always calls the file-level merge drivers. This used to be perfectly OK back when we always first attempted a straight patch application and used the three-way code path only as a fallback. Any binary patch that can be applied as a trivial three-way merge (e.g. the patch is based exactly on the version we happen to have) would always cleanly apply, so the ll_binary_merge() that is not prepared to see the trivial case would not have to handle such a case. This no longer is true after we made "--3way" to mean "first try three-way and then fall back to straight application", and made "git apply -3" on a binary patch that is based on the current version no longer apply. Teach "git apply -3" to first check for the trivial merge cases and resolve them without hitting the file-level merge drivers. Signed-off-by: Jerry Zhang <jerry@skydio.com> [jc: stolen tests from Jerry's patch] Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-03Merge branch 'fc/completion-updates'Libravatar Junio C Hamano1-0/+15
Command line completion updates. * fc/completion-updates: completion: bash: add correct suffix in variables completion: bash: fix for multiple dash commands completion: bash: fix for suboptions with value completion: bash: fix prefix detection in branch.*
2021-09-03Merge branch 'pw/rebase-r-fixes'Libravatar Junio C Hamano3-9/+98
Various bugs in "git rebase -r" have been fixed. * pw/rebase-r-fixes: rebase -r: fix merge -c with a merge strategy rebase -r: don't write .git/MERGE_MSG when fast-forwarding rebase -i: add another reword test rebase -r: make 'merge -c' behave like reword
2021-09-03Merge branch 'pw/rebase-skip-final-fix'Libravatar Junio C Hamano2-6/+25
Checking out all the paths from HEAD during the last conflicted step in "git rebase" and continuing would cause the step to be skipped (which is expected), but leaves MERGE_MSG file behind in $GIT_DIR and confuses the next "git commit", which has been corrected. * pw/rebase-skip-final-fix: rebase --continue: remove .git/MERGE_MSG rebase --apply: restore some tests t3403: fix commit authorship
2021-09-03Merge branch 'jk/commit-edit-fixup-fix'Libravatar Junio C Hamano1-1/+8
"git commit --fixup" now works with "--edit" again, after it was broken in v2.32. * jk/commit-edit-fixup-fix: commit: restore --edit when combined with --fixup