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2021-11-22t7006: clean up SIGPIPE handling in trace2 testsLibravatar Jeff King1-28/+14
Comit c24b7f6736 (pager: test for exit code with and without SIGPIPE, 2021-02-02) introduced some tests that don't reliably generate SIGPIPE where we expect it (i.e., when our pager doesn't read all of the output from git-log). There are two problems that somewhat cancel each other out. First is that the output of git-log isn't very large (only around 800 bytes). So even if the pager doesn't read all of our output, it's racy whether or not we'll actually get a SIGPIPE (we won't if we write all of the output into the pipe buffer before the pager exits). But we wrap git-log with test_terminal, which is supposed to propagate the exit status of git-log. However, it doesn't always do so; test_terminal will copy to stdout any lines that it got from our fake pager, and it pipes to an empty command. So most of the time we are seeing a SIGPIPE from test_terminal itself (though this is likewise racy). Let's try to make this more robust in two ways: 1. We'll put a commit with a huge message at the tip of history. Since this is over a megabyte, it should fill the OS pipe buffer completely, causing git-log to keep trying to write even after the pager has exited. 2. We'll redirect the output of test_terminal to /dev/null. That means it can never get SIGPIPE itself, and will always be giving us the exit code from git-log. These two changes reveal that one of the tests was looking for the wrong behavior. If we try to start a pager that does not exist (according to execve()), then the error propagates from start_command() back to the pager code as an error, and we avoid redirecting git-log's stdout to the broken pager entirely. Instead, it goes straight to the original stdout (test_terminal's pty in this case), and we do not see a SIGPIPE at all. So the test "git attempts to page to nonexisting pager command, gets SIGPIPE" is checking the wrong outcome; it should be looking for a successful exit (and was only confused by test_terminal's SIGPIPE). There's a related test, "git discards nonexisting pager without SIGPIPE", which sets the pager to a shell command which will read all input and _then_ run a non-existing command. But that doesn't trigger the same execve() behavior. We really do run the shell there and redirect git-log's stdout to it. And the fact that the shell then exits 127 is not interesting. It is not different at that point than the earlier test to check for "exit 1". So we can drop that test entirely. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-22run-command: unify signal and regular logic for wait_or_whine()Libravatar Jeff King1-1/+1
Since 507d7804c0 (pager: don't use unsafe functions in signal handlers, 2015-09-04), we have a separate code path in wait_or_whine() for the case that we're in a signal handler. But that code path misses some of the cases handled by the main logic. This was improved in be8fc53e36 (pager: properly log pager exit code when signalled, 2021-02-02), but that covered only case: actually returning the correct error code. But there are some other cases: - if waitpid() returns failure, we wouldn't notice and would look at uninitialized garbage in the status variable; it's not clear if it's possible to trigger this or not - if the process exited by signal, then we would still report "-1" rather than the correct signal code This latter case even had a test added in be8fc53e36, but it doesn't work reliably. It sets the pager command to: >pager-used; test-tool sigchain The latter command will die by signal, but because there are multiple commands, there will be a shell in between. And it's the shell whose waitpid() call will see the signal death, and it will then exit with code 143, which is what Git will see. To make matters even more confusing, some shells (such as bash) will realize that there's nothing for the shell to do after test-tool finishes, and will turn it into an exec. So the test was only checking what it thought when /bin/sh points to a shell like bash (we're relying on the shell used internally by Git to spawn sub-commands here, so even running the test under bash would not be enough). This patch adjusts the tests to explicitly call "exec" in the pager command, which produces a consistent outcome regardless of shell. Note that without the code change in this patch it _should_ fail reliably, but doesn't. That test, like its siblings, tries to trigger SIGPIPE in the git-log process writing to the pager, but only do so racily. That will be fixed in a follow-on patch. For the code change here, we have two options: - we can teach the in_signal code to handle WIFSIGNALED() - we can stop returning early when in_signal is set, and instead annotate individual calls that we need to skip in this case The former is a simpler patch, but means we're essentially duplicating all of the logic. So instead I went with the latter. The result is a bigger patch, and we do run the risk of new code being added but forgetting to handle in_signal. But in the long run it seems more maintainable. I've skipped any non-trivial calls for the in_signal case, like calling error(). We'll also skip the call to clear_child_for_cleanup(), as we were before. This is arguably the wrong thing to do, since we wouldn't want to try to clean it up again. But: - we can't call it as-is, because it calls free(), which we must avoid in a signal handler (we'd have to pass in_signal so it can skip the free() call) - we'll only go through the list of children to clean once, since our cleanup_children_on_signal() handler pops itself after running (and then re-raises, so eventually we'd just exit). So this cleanup only matters if a process is on the cleanup list _and_ it has a separate handler to clean itself up. Which is questionable in the first place (and AFAIK we do not do). - double-cleanup isn't actually that bad anyway. waitpid() will just return an error, which we won't even report because of in_signal. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-02-01pager: properly log pager exit code when signalledLibravatar Ævar Arnfjörð Bjarmason1-6/+54
When git invokes a pager that exits with non-zero the common case is that we'll already return the correct SIGPIPE failure from git itself, but the exit code logged in trace2 has always been incorrectly reported[1]. Fix that and log the correct exit code in the logs. Since this gives us something to test outside of our recently-added tests needing a !MINGW prerequisite, let's refactor the test to run on MINGW and actually check for SIGPIPE outside of MINGW. The wait_or_whine() is only called with a true "in_signal" from from finish_command_in_signal(), which in turn is only used in pager.c. The "in_signal && !WIFEXITED(status)" case is not covered by tests. Let's log the default -1 in that case for good measure. 1. The incorrect logging of the exit code in was seemingly copy/pasted into finish_command_in_signal() in ee4512ed481 (trace2: create new combined trace facility, 2019-02-22) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-02-01pager: test for exit code with and without SIGPIPELibravatar Ævar Arnfjörð Bjarmason1-0/+82
Add tests for how git behaves when the pager itself exits with non-zero, as well as for us exiting with 141 when we're killed with SIGPIPE due to the pager not consuming its output. There is some recent discussion[1] about these semantics, but aside from what we want to do in the future, we should have a test for the current behavior. This test construct is stolen from 7559a1be8a0 (unblock and unignore SIGPIPE, 2014-09-18). The reason not to make the test itself depend on the MINGW prerequisite is to make a subsequent commit easier to read. 1. https://lore.kernel.org/git/87o8h4omqa.fsf@evledraar.gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-25Merge branch 'ab/mailmap-fixup'Libravatar Junio C Hamano2-14/+21
Follow-up fixes and improvements to ab/mailmap topic. * ab/mailmap-fixup: t4203: make blame output massaging more robust mailmap doc: use correct environment variable 'GIT_WORK_TREE' t4203: stop losing return codes of git commands test-lib-functions.sh: fix usage for test_commit()
2021-01-25Merge branch 'ps/config-env-pairs'Libravatar Junio C Hamano1-1/+222
Introduce two new ways to feed configuration variable-value pairs via environment variables, and tweak the way GIT_CONFIG_PARAMETERS encodes variable/value pairs to make it more robust. * ps/config-env-pairs: config: allow specifying config entries via envvar pairs environment: make `getenv_safe()` a public function config: store "git -c" variables using more robust format config: parse more robust format in GIT_CONFIG_PARAMETERS config: extract function to parse config pairs quote: make sq_dequote_step() a public function config: add new way to pass config via `--config-env` git: add `--super-prefix` to usage string
2021-01-25Merge branch 'jx/bundle'Libravatar Junio C Hamano4-24/+511
"git bundle" learns "--stdin" option to read its refs from the standard input. Also, it now does not lose refs whey they point at the same object. * jx/bundle: bundle: arguments can be read from stdin bundle: lost objects when removing duplicate pendings test: add helper functions for git-bundle
2021-01-25Merge branch 'ab/mailmap'Libravatar Junio C Hamano6-291/+615
Clean-up docs, codepaths and tests around mailmap. * ab/mailmap: (22 commits) shortlog: remove unused(?) "repo-abbrev" feature mailmap doc + tests: document and test for case-insensitivity mailmap tests: add tests for empty "<>" syntax mailmap tests: add tests for whitespace syntax mailmap tests: add a test for comment syntax mailmap doc + tests: add better examples & test them tests: refactor a few tests to use "test_commit --append" test-lib functions: add an --append option to test_commit test-lib functions: add --author support to test_commit test-lib functions: document arguments to test_commit test-lib functions: expand "test_commit" comment template mailmap: test for silent exiting on missing file/blob mailmap tests: get rid of overly complex blame fuzzing mailmap tests: add a test for "not a blob" error mailmap tests: remove redundant entry in test mailmap tests: improve --stdin tests mailmap tests: modernize syntax & test idioms mailmap tests: use our preferred whitespace syntax mailmap doc: start by mentioning the comment syntax check-mailmap doc: note config options ...
2021-01-25Merge branch 'ps/fetch-atomic'Libravatar Junio C Hamano1-0/+168
"git fetch" learns to treat ref updates atomically in all-or-none fashion, just like "git push" does, with the new "--atomic" option. * ps/fetch-atomic: fetch: implement support for atomic reference updates fetch: allow passing a transaction to `s_update_ref()` fetch: refactor `s_update_ref` to use common exit path fetch: use strbuf to format FETCH_HEAD updates fetch: extract writing to FETCH_HEAD
2021-01-25Merge branch 'jk/log-cherry-pick-duplicate-patches'Libravatar Junio C Hamano1-0/+12
When more than one commit with the same patch ID appears on one side, "git log --cherry-pick A...B" did not exclude them all when a commit with the same patch ID appears on the other side. Now it does. * jk/log-cherry-pick-duplicate-patches: patch-ids: handle duplicate hashmap entries
2021-01-25Merge branch 'js/default-branch-name-tests-final-stretch'Libravatar Junio C Hamano354-3436/+4401
Prepare tests not to be affected by the name of the default branch "git init" creates. * js/default-branch-name-tests-final-stretch: (28 commits) tests: drop prereq `PREPARE_FOR_MAIN_BRANCH` where no longer needed t99*: adjust the references to the default branch name "main" tests(git-p4): transition to the default branch name `main` t9[5-7]*: adjust the references to the default branch name "main" t9[0-4]*: adjust the references to the default branch name "main" t8*: adjust the references to the default branch name "main" t7[5-9]*: adjust the references to the default branch name "main" t7[0-4]*: adjust the references to the default branch name "main" t6[4-9]*: adjust the references to the default branch name "main" t64*: preemptively adjust alignment to prepare for `master` -> `main` t6[0-3]*: adjust the references to the default branch name "main" t5[6-9]*: adjust the references to the default branch name "main" t55[4-9]*: adjust the references to the default branch name "main" t55[23]*: adjust the references to the default branch name "main" t551*: adjust the references to the default branch name "main" t550*: adjust the references to the default branch name "main" t5503: prepare aligned comment for replacing `master` with `main` t5[0-4]*: adjust the references to the default branch name "main" t5323: prepare centered comment for `master` -> `main` t4*: adjust the references to the default branch name "main" ...
2021-01-25Merge branch 'dl/reflog-with-single-entry'Libravatar Junio C Hamano2-2/+15
After expiring a reflog and making a single commit, the reflog for the branch would record a single entry that knows both @{0} and @{1}, but we failed to answer "what commit were we on?", i.e. @{1} * dl/reflog-with-single-entry: refs: allow @{n} to work with n-sized reflog refs: factor out set_read_ref_cutoffs()
2021-01-25Merge branch 'sj/untracked-files-in-submodule-directory-is-not-dirty'Libravatar Junio C Hamano4-18/+32
"git diff" showed a submodule working tree with untracked cruft as "Submodule commit <objectname>-dirty", but a natural expectation is that the "-dirty" indicator would align with "git describe --dirty", which does not consider having untracked files in the working tree as source of dirtiness. The inconsistency has been fixed. * sj/untracked-files-in-submodule-directory-is-not-dirty: diff: do not show submodule with untracked files as "-dirty"
2021-01-25Merge branch 'jc/deprecate-pack-redundant'Libravatar Junio C Hamano1-15/+17
Warn loudly when the "pack-redundant" command, which has been left stale with almost unusable performance issues, gets used, as we no longer want to recommend its use (instead just "repack -d" instead). * jc/deprecate-pack-redundant: pack-redundant: gauge the usage before proposing its removal
2021-01-25Merge branch 'jk/forbid-lf-in-git-url'Libravatar Junio C Hamano2-0/+20
Newline characters in the host and path part of git:// URL are now forbidden. * jk/forbid-lf-in-git-url: fsck: reject .gitmodules git:// urls with newlines git_connect_git(): forbid newlines in host and path
2021-01-25Merge branch 'ab/branch-sort'Libravatar Junio C Hamano1-1/+50
The implementation of "git branch --sort" wrt the detached HEAD display has always been hacky, which has been cleaned up. * ab/branch-sort: branch: show "HEAD detached" first under reverse sort branch: sort detached HEAD based on a flag ref-filter: move ref_sorting flags to a bitfield ref-filter: move "cmp_fn" assignment into "else if" arm ref-filter: add braces to if/else if/else chain branch tests: add to --sort tests branch: change "--local" to "--list" in comment
2021-01-25Merge branch 'en/diffcore-rename'Libravatar Junio C Hamano1-2/+112
File-level rename detection updates. * en/diffcore-rename: diffcore-rename: remove unnecessary duplicate entry checks diffcore-rename: accelerate rename_dst setup diffcore-rename: simplify and accelerate register_rename_src() t4058: explore duplicate tree entry handling in a bit more detail t4058: add more tests and documentation for duplicate tree entry handling diffcore-rename: reduce jumpiness in progress counters diffcore-rename: simplify limit check diffcore-rename: avoid usage of global in too_many_rename_candidates() diffcore-rename: rename num_create to num_destinations
2021-01-25Merge branch 'ab/mktag'Libravatar Junio C Hamano3-54/+186
"git mktag" validates its input using its own rules before writing a tag object---it has been updated to share the logic with "git fsck". * ab/mktag: (23 commits) mktag: add a --[no-]strict option mktag: mark strings for translation mktag: convert to parse-options mktag: allow omitting the header/body \n separator mktag: allow turning off fsck.extraHeaderEntry fsck: make fsck_config() re-usable mktag: use fsck instead of custom verify_tag() mktag: use puts(str) instead of printf("%s\n", str) mktag: remove redundant braces in one-line body "if" mktag: use default strbuf_read() hint mktag tests: test verify_object() with replaced objects mktag tests: improve verify_object() test coverage mktag tests: test "hash-object" compatibility mktag tests: stress test whitespace handling mktag tests: run "fsck" after creating "mytag" mktag tests: don't create "mytag" twice mktag tests: don't redirect stderr to a file needlessly mktag tests: remove needless SHA-1 hardcoding mktag tests: use "test_commit" helper mktag tests: don't needlessly use a subshell ...
2021-01-15Merge branch 'ad/t4129-setfacl-target-fix'Libravatar Junio C Hamano1-1/+1
Test fix. * ad/t4129-setfacl-target-fix: t4129: fix setfacl-related permissions failure
2021-01-15Merge branch 'jk/t5516-deflake'Libravatar Junio C Hamano1-1/+3
Test fix. * jk/t5516-deflake: t5516: loosen "not our ref" error check
2021-01-15Merge branch 'pb/mergetool-tool-help-fix'Libravatar Junio C Hamano1-0/+11
Fix 2.29 regression where "git mergetool --tool-help" fails to list all the available tools. * pb/mergetool-tool-help-fix: mergetool--lib: fix '--tool-help' to correctly show available tools
2021-01-15Merge branch 'ds/for-each-repo-noopfix'Libravatar Junio C Hamano1-0/+6
"git for-each-repo --config=<var> <cmd>" should not run <cmd> for any repository when the configuration variable <var> is not defined even once. * ds/for-each-repo-noopfix: for-each-repo: do nothing on empty config
2021-01-15Merge branch 'mt/t4129-with-setgid-dir'Libravatar Junio C Hamano1-2/+7
Some tests expect that "ls -l" output has either '-' or 'x' for group executable bit, but setgid bit can be inherited from parent directory and make these fields 'S' or 's' instead, causing test failures. * mt/t4129-with-setgid-dir: t4129: don't fail if setgid is set in the test directory
2021-01-15Merge branch 'ds/maintenance-part-4'Libravatar Junio C Hamano2-8/+105
Follow-up on the "maintenance part-3" which introduced scheduled maintenance tasks to support platforms whose native scheduling methods are not 'cron'. * ds/maintenance-part-4: maintenance: use Windows scheduled tasks maintenance: use launchctl on macOS maintenance: include 'cron' details in docs maintenance: extract platform-specific scheduling
2021-01-15Merge branch 'fc/completion-aliases-support'Libravatar Junio C Hamano1-0/+20
Bash completion (in contrib/) update to make it easier for end-users to add completion for their custom "git" subcommands. * fc/completion-aliases-support: completion: add proper public __git_complete test: completion: add tests for __git_complete completion: bash: improve function detection completion: bash: add __git_have_func helper
2021-01-15Merge branch 'en/stash-apply-sparse-checkout'Libravatar Junio C Hamano2-8/+96
"git stash" did not work well in a sparsely checked out working tree. * en/stash-apply-sparse-checkout: stash: fix stash application in sparse-checkouts stash: remove unnecessary process forking t7012: add a testcase demonstrating stash apply bugs in sparse checkouts
2021-01-15Merge branch 'ar/t6016-modernise'Libravatar Junio C Hamano1-187/+167
Test update. * ar/t6016-modernise: t6016: move to lib-log-graph.sh framework
2021-01-15Merge branch 'nk/perf-fsmonitor-cleanup'Libravatar Junio C Hamano1-1/+6
Test fix. * nk/perf-fsmonitor-cleanup: p7519: allow running without watchman prereq
2021-01-15Merge branch 'ma/sha1-is-a-hash'Libravatar Junio C Hamano2-2/+2
Retire more names with "sha1" in it. * ma/sha1-is-a-hash: hash-lookup: rename from sha1-lookup sha1-lookup: rename `sha1_pos()` as `hash_pos()` object-file.c: rename from sha1-file.c object-name.c: rename from sha1-name.c
2021-01-15Merge branch 'ma/t1300-cleanup'Libravatar Junio C Hamano1-40/+32
Code clean-up. * ma/t1300-cleanup: t1300: don't needlessly work with `core.foo` configs t1300: remove duplicate test for `--file no-such-file` t1300: remove duplicate test for `--file ../foo`
2021-01-15Merge branch 'bc/rev-parse-path-format'Libravatar Junio C Hamano1-1/+56
"git rev-parse" can be explicitly told to give output as absolute or relative path with the `--path-format=(absolute|relative)` option. * bc/rev-parse-path-format: rev-parse: add option for absolute or relative path formatting abspath: add a function to resolve paths with missing components
2021-01-15Merge branch 'ew/decline-core-abbrev'Libravatar Junio C Hamano1-0/+2
The configuration variable 'core.abbrev' can be set to 'no' to force no abbreviation regardless of the hash algorithm. * ew/decline-core-abbrev: core.abbrev=no disables abbreviations
2021-01-15config: allow specifying config entries via envvar pairsLibravatar Patrick Steinhardt1-1/+114
While we currently have the `GIT_CONFIG_PARAMETERS` environment variable which can be used to pass runtime configuration data to git processes, it's an internal implementation detail and not supposed to be used by end users. Next to being for internal use only, this way of passing config entries has a major downside: the config keys need to be parsed as they contain both key and value in a single variable. As such, it is left to the user to escape any potentially harmful characters in the value, which is quite hard to do if values are controlled by a third party. This commit thus adds a new way of adding config entries via the environment which gets rid of this shortcoming. If the user passes the `GIT_CONFIG_COUNT=$n` environment variable, Git will parse environment variable pairs `GIT_CONFIG_KEY_$i` and `GIT_CONFIG_VALUE_$i` for each `i` in `[0,n)`. While the same can be achieved with `git -c <name>=<value>`, one may wish to not do so for potentially sensitive information. E.g. if one wants to set `http.extraHeader` to contain an authentication token, doing so via `-c` would trivially leak those credentials via e.g. ps(1), which typically also shows command arguments. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-15config: store "git -c" variables using more robust formatLibravatar Patrick Steinhardt1-0/+8
The previous commit added a new format for $GIT_CONFIG_PARAMETERS which is able to robustly handle subsections with "=" in them. Let's start writing the new format. Unfortunately, this does much less than you'd hope, because "git -c" itself has the same ambiguity problem! But it's still worth doing: - we've now pushed the problem from the inter-process communication into the "-c" command-line parser. This would free us up to later add an unambiguous format there (e.g., separate arguments like "git --config key value", etc). - for --config-env, the parser already disallows "=" in the environment variable name. So: git --config-env section.with=equals.key=ENVVAR will robustly set section.with=equals.key to the contents of $ENVVAR. The new test shows the improvement for --config-env. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-15config: parse more robust format in GIT_CONFIG_PARAMETERSLibravatar Jeff King1-0/+52
When we stuff config options into GIT_CONFIG_PARAMETERS, we shell-quote each one as a single unit, like: 'section.one=value1' 'section.two=value2' On the reading side, we de-quote to get the individual strings, and then parse them by splitting on the first "=" we find. This format is ambiguous, because an "=" may appear in a subsection. So the config represented in a file by both: [section "subsection=with=equals"] key = value and: [section] subsection = with=equals.key=value ends up in this flattened format like: 'section.subsection=with=equals.key=value' and we can't tell which was desired. We have traditionally resolved this by taking the first "=" we see starting from the left, meaning that we allowed arbitrary content in the value, but not in the subsection. Let's make our environment format a bit more robust by separately quoting the key and value. That turns those examples into: 'section.subsection=with=equals.key'='value' and: 'section.subsection'='with=equals.key=value' respectively, and we can tell the difference between them. We can detect which format is in use for any given element of the list based on the presence of the unquoted "=". That means we can continue to allow the old format to work to support any callers which manually used the old format, and we can even intermingle the two formats. The old format wasn't documented, and nobody was supposed to be using it. But it's likely that such callers exist in the wild, so it's nice if we can avoid breaking them. Likewise, it may be possible to trigger an older version of "git -c" that runs a script that calls into a newer version of "git -c"; that new version would see the intermingled format. This does create one complication, which is that the obvious format in the new scheme for [section] some-bool is: 'section.some-bool' with no equals. We'd mistake that for an old-style variable. And it even has the same meaning in the old style, but: [section "with=equals"] some-bool does not. It would be: 'section.with=equals=some-bool' which we'd take to mean: [section] with = equals=some-bool in the old, ambiguous style. Likewise, we can't use: 'section.some-bool'='' because that's ambiguous with an actual empty string. Instead, we'll again use the shell-quoting to give us a hint, and use: 'section.some-bool'= to show that we have no value. Note that this commit just expands the reading side. We'll start writing the new format via "git -c" in a future patch. In the meantime, the existing "git -c" tests will make sure we didn't break reading the old format. But we'll also add some explicit coverage of the two formats to make sure we continue to handle the old one after we move the writing side over. And one final note: since we're now using the shell-quoting as a semantically meaningful hint, this closes the door to us ever allowing arbitrary shell quoting, like: 'a'shell'would'be'ok'with'this'.key=value But we have never supported that (only what sq_quote() would produce), and we are probably better off keeping things simple, robust, and backwards-compatible, than trying to make it easier for humans. We'll continue not to advertise the format of the variable to users, and instead keep "git -c" as the recommended mechanism for setting config (even if we are trying to be kind not to break users who may be relying on the current undocumented format). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-14t4203: make blame output massaging more robustLibravatar Junio C Hamano1-5/+5
In the "git blame --porcelain" output, lines that ends with three integers may not be the line that shows a commit object with line numbers and block length (the contents from the blamed file or the summary field can have a line that happens to match). Also, the names of the author may have more than three SP separated tokens ("git blame -L242,+1 cf6de18aabf7 Documentation/SubmittingPatches" gives an example). The existing "grep -E | cut" pipeline is a bit too loose on these two points. While they can be assumed on the test data, it is not so hard to use the right pattern from the documented format, so let's do so. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-14t4203: stop losing return codes of git commandsLibravatar Denton Liu1-7/+14
In a pipe, only the return code of the last command is used. Thus, all other commands will have their return codes masked. Rewrite pipes so that there are no git commands upstream so that their failure is reported. Signed-off-by: Denton Liu <liu.denton@gmail.com> Acked-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-14test-lib-functions.sh: fix usage for test_commit()Libravatar Denton Liu1-2/+2
The usage comment for test_commit() shows that the --author option should be given as `--author=<author>`. However, this is incorrect as it only works when given as `--author <author>`. Correct this erroneous text. Also, for the sake of correctness, fix the description as well since we invoke `git commit` with `--author <author>`, not `--author=<author>`. Signed-off-by: Denton Liu <liu.denton@gmail.com> Acked-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12mailmap doc + tests: document and test for case-insensitivityLibravatar Ævar Arnfjörð Bjarmason1-0/+14
Add documentation and more tests for case-insensitivity. The existing test only matched on the E-Mail part, but as shown here we also match the name with strcasecmp(). This behavior was last discussed on the mailing list in the thread starting at [1]. It seems we're keeping it like this, so let's document it. 1. https://lore.kernel.org/git/87czykvg19.fsf@evledraar.gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12mailmap tests: add tests for empty "<>" syntaxLibravatar Ævar Arnfjörð Bjarmason1-0/+27
Add tests for mailmap's handling of "<>", which is allowed on the RHS, but not the LHS of a "<LHS> <RHS>" pair. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12mailmap tests: add tests for whitespace syntaxLibravatar Ævar Arnfjörð Bjarmason1-0/+52
Add tests for mailmap's handling of whitespace, i.e. how it trims space within "<>" and around author names. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12mailmap tests: add a test for comment syntaxLibravatar Ævar Arnfjörð Bjarmason1-0/+33
Add a test for mailmap comment syntax. As noted in [1] there was no test coverage for this. Let's make sure a future change doesn't break it. 1. https://lore.kernel.org/git/CAN0heSoKYWXqskCR=GPreSHc6twCSo1345WTmiPdrR57XSShhA@mail.gmail.com/ Reported-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12mailmap doc + tests: add better examples & test themLibravatar Ævar Arnfjörð Bjarmason1-0/+88
Change the mailmap documentation added in 0925ce4d49 (Add map_user() and clear_mailmap() to mailmap, 2009-02-08) to continue discussing the Jane/Joe example. I think this makes things a lot less confusing as we're building up more complex examples using one set of data which covers all the things we'd like to discuss. Also add tests to assert that what our documentation says is what's actually happening. This is mostly (or entirely) covered by existing tests which I'm not deleting, but having these tests for the synopsis makes it easier to follow-along while reading the tests & docs. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12tests: refactor a few tests to use "test_commit --append"Libravatar Ævar Arnfjörð Bjarmason3-29/+8
Refactor a few more tests to use the new "--append" option to "test_commit". I added it for use in the mailmap tests, but this demonstrates how useful it is in general. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12test-lib functions: add an --append option to test_commitLibravatar Ævar Arnfjörð Bjarmason2-33/+20
Add an --append option to test_commit to append <contents> to the <file> we're writing to. This simplifies a lot of test setup, as shown in some of the tests being changed here. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12test-lib functions: add --author support to test_commitLibravatar Ævar Arnfjörð Bjarmason2-6/+12
Add support for --author to "test_commit". This will simplify some current and future tests, one of those is being changed here. Let's also line-wrap the "git commit" command invocation to make diffs that add subsequent options easier to add, as they'll only need to add a new option line. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12test-lib functions: document arguments to test_commitLibravatar Ævar Arnfjörð Bjarmason1-0/+4
The --notick argument was added in [1] and was followed by --signoff in [2], but neither of these commits added any documentation for these options. When -C was added in [3] a comment was added to document it, but not the other options. Let's document all of these options. 1. 44b85e89d7 (t7003: add test to filter a branch with a commit at epoch, 2012-07-12), 2. 5ed75e2a3f (cherry-pick: don't forget -s on failure, 2012-09-14). 3. 6f94351b0a (test-lib-functions.sh: teach test_commit -C <dir>, 2016-12-08) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12test-lib functions: expand "test_commit" comment templateLibravatar Ævar Arnfjörð Bjarmason1-5/+3
Expand the comment template for "test_commit" to match that of "test_commit_bulk" added in b1c36cb849 (test-lib: introduce test_commit_bulk, 2019-07-02). It has several undocumented options, which won't all fit on one line. Follow-up commit(s) will document them. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12mailmap: test for silent exiting on missing file/blobLibravatar Ævar Arnfjörð Bjarmason1-1/+20
That we silently ignore missing mailmap.file or mailmap.blob values is intentional. See 938a60d64f (mailmap: clean up read_mailmap error handling, 2012-12-12). However, nothing tested for this. Let's do that by checking that stderr is empty in those cases. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-12mailmap tests: get rid of overly complex blame fuzzingLibravatar Ævar Arnfjörð Bjarmason1-20/+30
Change a test that used a custom fuzzing function since bfdfa3d414 (t4203 (mailmap): stop hardcoding commit ids and dates, 2010-10-15) to just use the "blame --porcelain" output instead. We could use the same pattern as 0ba9c9a0fb (t8008: rely on rev-parse'd HEAD instead of sha1 value, 2017-07-26) does to do this, but there wouldn't be any point. We're not trying to test "blame" output here in general, just that "blame" pays attention to the mailmap. So it's sufficient to get the blamed line(s) and authors from the output, which is much easier with the "--porcelain" option. It would still be possible for there to be a bug in "blame" such that it uses the mailmap for its "--porcelain" output, but not the regular output. Let's test for that simply by checking if specifying the mailmap changes the output. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>