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Teach parse-options API an option to help the completion script,
and make use of the mechanism in command line completion.
* nd/parseopt-completion: (45 commits)
completion: more subcommands in _git_notes()
completion: complete --{reuse,reedit}-message= for all notes subcmds
completion: simplify _git_notes
completion: don't set PARSE_OPT_NOCOMPLETE on --rerere-autoupdate
completion: use __gitcomp_builtin in _git_worktree
completion: use __gitcomp_builtin in _git_tag
completion: use __gitcomp_builtin in _git_status
completion: use __gitcomp_builtin in _git_show_branch
completion: use __gitcomp_builtin in _git_rm
completion: use __gitcomp_builtin in _git_revert
completion: use __gitcomp_builtin in _git_reset
completion: use __gitcomp_builtin in _git_replace
remote: force completing --mirror= instead of --mirror
completion: use __gitcomp_builtin in _git_remote
completion: use __gitcomp_builtin in _git_push
completion: use __gitcomp_builtin in _git_pull
completion: use __gitcomp_builtin in _git_notes
completion: use __gitcomp_builtin in _git_name_rev
completion: use __gitcomp_builtin in _git_mv
completion: use __gitcomp_builtin in _git_merge_base
...
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The "interactive.diffFilter" used by "git add -i" must retain
one-to-one correspondence between its input and output, but it was
not enforced and caused end-user confusion. We now at least make
sure the filtered result has the same number of lines as its input
to detect a broken filter.
* jk/add-i-diff-filter:
add--interactive: detect bogus diffFilter output
t3701: add a test for interactive.diffFilter
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"git worktree" learned move and remove subcommands.
* nd/worktree-move:
t2028: fix minor error and issues in newly-added "worktree move" tests
worktree remove: allow it when $GIT_WORK_TREE is already gone
worktree remove: new command
worktree move: refuse to move worktrees with submodules
worktree move: accept destination as directory
worktree move: new command
worktree.c: add update_worktree_location()
worktree.c: add validate_worktree()
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"git add -p" has been lazy in coalescing split patches before
passing the result to underlying "git apply", leading to corner
case bugs; the logic to prepare the patch to be applied after hunk
selections has been tightened.
* pw/add-p-recount:
add -p: don't rely on apply's '--recount' option
add -p: fix counting when splitting and coalescing
add -p: calculate offset delta for edited patches
add -p: adjust offsets of subsequent hunks when one is skipped
t3701: add failing test for pathological context lines
t3701: don't hard code sha1 hash values
t3701: use test_write_lines and write_script
t3701: indent here documents
add -i: add function to format hunk header
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Running test scripts under -x option of the shell is often not a
useful way to debug them, because the error messages from the
commands tests try to capture and inspect are contaminated by the
tracing output by the shell. An earlier work done to make it more
pleasant to run tests under -x with recent versions of bash is
extended to cover posix shells that do not support BASH_XTRACEFD.
* sg/test-x:
travis-ci: run tests with '-x' tracing
t/README: add a note about don't saving stderr of compound commands
t1510-repo-setup: mark as untraceable with '-x'
t9903-bash-prompt: don't check the stderr of __git_ps1()
t5570-git-daemon: don't check the stderr of a subshell
t5526: use $TRASH_DIRECTORY to specify the path of GIT_TRACE log file
t5500-fetch-pack: don't check the stderr of a subshell
t3030-merge-recursive: don't check the stderr of a subshell
t1507-rev-parse-upstream: don't check the stderr of a shell function
t: add means to disable '-x' tracing for individual test scripts
t: prevent '-x' tracing from interfering with test helpers' stderr
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Test updates.
* rj/test-i18ngrep:
t5536: simplify checking of messages output to stderr
t4151: consolidate multiple calls to test_i18ngrep
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"git diff" and friends learned "--compact-summary" that shows the
information usually given with the "--summary" option on the same
line as the diffstat output of the "--stat" option (which saves
vertical space and keeps info on a single path at the same place).
* nd/diff-stat-with-summary:
diff: add --compact-summary
diff.c: refactor pprint_rename() to use strbuf
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"git diff" and friends learned funcname patterns for Go language
source files.
* ag/userdiff-go-funcname:
userdiff: add built-in pattern for golang
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Writing out the index file when the only thing that changed in it
is the untracked cache information is often wasteful, and this has
been optimized out.
* bp/untracked-cache-noflush:
untracked cache: use git_env_bool() not getenv() for customization
dir.c: don't flag the index as dirty for changes to the untracked cache
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Perf test regression fix.
* rs/perf-repeat-thrice-by-default:
perf: use GIT_PERF_REPEAT_COUNT=3 by default even without config file
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Test framework tweak to catch developer thinko.
* jc/test-must-be-empty:
test_must_be_empty: make sure the file exists, not just empty
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"git status" can spend a lot of cycles to compute the relation
between the current branch and its upstream, which can now be
disabled with "--no-ahead-behind" option.
* jh/status-no-ahead-behind:
status: support --no-ahead-behind in long format
status: update short status to respect --no-ahead-behind
status: add --[no-]ahead-behind to status and commit for V2 format.
stat_tracking_info: return +1 when branches not equal
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Test framework update.
* jk/test-helper-v-output-fix:
t: send verbose test-helper output to fd 4
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Code clean-up.
* jk/cached-commit-buffer:
revision: drop --show-all option
commit: drop uses of get_cached_commit_buffer()
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Since Git 1.7.9, "git merge" defaulted to --no-ff (i.e. even when
the side branch being merged is a descendant of the current commit,
create a merge commit instead of fast-forwarding) when merging a
tag object. This was appropriate default for integrators who pull
signed tags from their downstream contributors, but caused an
unnecessary merges when used by downstream contributors who
habitually "catch up" their topic branches with tagged releases
from the upstream. Update "git merge" to default to --no-ff only
when merging a tag object that does *not* sit at its usual place in
refs/tags/ hierarchy, and allow fast-forwarding otherwise, to
mitigate the problem.
* jc/allow-ff-merging-kept-tags:
merge: allow fast-forward when merging a tracked tag
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Test update.
* sg/t6300-modernize:
t6300-for-each-ref: fix "more than one quoting style" tests
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The new "--show-current-patch" option gives an end-user facing way
to get the diff being applied when "git rebase" (and "git am")
stops with a conflict.
* nd/rebase-show-current-patch:
rebase: introduce and use pseudo-ref REBASE_HEAD
rebase: add --show-current-patch
am: add --show-current-patch
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Clarify how configured fetch refspecs interact with the "--prune"
option of "git fetch", and also add a handy short-hand for getting
rid of stale tags that are locally held.
* ab/fetch-prune:
fetch: make the --prune-tags work with <url>
fetch: add a --prune-tags option and fetch.pruneTags config
fetch tests: add scaffolding for the new fetch.pruneTags
git-fetch & config doc: link to the new PRUNING section
git remote doc: correct dangerous lies about what prune does
git fetch doc: add a new section to explain the ins & outs of pruning
fetch tests: fetch <url> <spec> as well as fetch [<remote>]
fetch tests: expand case/esac for later change
fetch tests: double quote a variable for interpolation
fetch tests: test --prune and refspec interaction
fetch tests: add a tag to be deleted to the pruning tests
fetch tests: re-arrange arguments for future readability
fetch tests: refactor in preparation for testing tag pruning
remote: add a macro for "refs/tags/*:refs/tags/*"
fetch: stop accessing "remote" variable indirectly
fetch: trivially refactor assignment to ref_nr
fetch: don't redundantly NULL something calloc() gave us
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Code clean-up.
* sm/mv-dry-run-update:
mv: remove unneeded 'if (!show_only)'
t7001: add test case for --dry-run
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"git tag" learned an explicit "--edit" option that allows the
message given via "-m" and "-F" to be further edited.
* nm/tag-edit:
tag: add --edit option
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Recently-added "git worktree move" tests include a minor error and a few
small issues. Specifically:
* checking non-existence of wrong file ("source" instead of
"destination")
* unneeded redirect (">empty")
* unused variable ("toplevel")
* restoring a worktree location by means of a separate test somewhat
distant from the test which moved it rather than using
test_when_finished() to restore it in a self-contained fashion
* having git command on the left-hand-side of a pipe ("git foo | grep")
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Acked-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It's important that the diff-filter only filter the
individual lines, and that there remain a one-to-one mapping
between the input and output lines. Otherwise, things like
hunk-splitting will behave quite unexpectedly (e.g., you
think you are splitting at one point, but it has a different
effect in the text patch we apply).
We can't detect all problematic cases, but we can at least
catch the obvious case where we don't even have the correct
number of lines.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This feature was added in 01143847db (add--interactive:
allow custom diff highlighting programs, 2016-02-27) but
never tested. Let's add a basic test.
Note that we only apply the filter when color is enabled,
so we have to use test_terminal. This is an open limitation
explicitly mentioned in the original commit. So take this
commit as testing the status quo, and not making a statement
on whether we'd want to enhance that in the future.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When a file has no trailing new line at the end diff records this by
appending "\ No newline at end of file" below the last line of the
file. This line should not be counted in the hunk header. Fix the
splitting and coalescing code to count files without a trailing new line
properly and change one of the tests to test splitting without a
trailing new line.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Recount the number of preimage and postimage lines in a hunk after it
has been edited so any change in the number of insertions or deletions
can be used to adjust the offsets of subsequent hunks. If an edited
hunk is subsequently split then the offset correction will be lost. It
would be possible to fix this if it is a problem, however the code
here is still an improvement on the status quo for the common case
where an edited hunk is applied without being split.
This is also a necessary step to removing '--recount' and
'--allow-overlap' from the invocation of 'git apply'. Before
'--recount' can be removed the splitting and coalescing counting needs
to be fixed to handle a missing newline at the end of a file. In order
to remove '--allow-overlap' there needs to be i) some way of verifying
the offset data in the edited hunk (probably by correlating the
preimage (or postimage if the patch is going to be applied in reverse)
lines of the edited and unedited versions to see if they are offset or
if any leading/trailing context lines have been removed) and ii) a way of
dealing with edited hunks that change context lines that are shared
with neighbouring hunks.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This adds xfuncname and word_regex patterns for golang, a quite
popular programming language. It also includes test cases for the
xfuncname regex (t4018) and updated documentation.
The xfuncname regex finds functions, structs and interfaces. Although
the Go language prohibits the opening brace from being on its own
line, the regex does not makes it mandatory, to be able to match
`func` statements like this:
func foo(bar int,
baz int) {
}
This is covered by the test case t4018/golang-long-func.
The word_regex pattern finds identifiers, integers, floats, complex
numbers and operators, according to the go specification.
Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since commit 8cbd431082 ("git-add--interactive: replace hunk
recounting with apply --recount", 2008-7-2) if a hunk is skipped then
we rely on the context lines to apply subsequent hunks in the right
place. While this works most of the time it is possible for hunks to
end up being applied in the wrong place. To fix this adjust the offset
of subsequent hunks to correct for any change in the number of
insertions or deletions due to the skipped hunk. The change in offset
due to edited hunks that have the number of insertions or deletions
changed is ignored here, it will be fixed in the next commit.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When a hunk is skipped by add -i the offsets of subsequent hunks are
not adjusted to account for any missing insertions due to the skipped
hunk. Most of the time this does not matter as apply uses the context
lines to apply the subsequent hunks in the correct place, however in
pathological cases the context lines will match at the now incorrect
offset and the hunk will be applied in the wrong place. The offsets of
hunks following an edited hunk that has had the number of insertions
or deletions changed also need to be updated in the same way. Add
failing tests to demonstrate this.
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use a filter when comparing diffs to fix the value of non-zero hashes
in diff index lines so we're not hard coding sha1 hash values in the
expected output. This makes it easier to change the expected output if
a test is edited as we don't need to worry about the exact hash value
and means the tests will work when the hash algorithm is transitioned
away from sha1.
Thanks-to: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git push" over http transport did not unquote the push-options
correctly.
* jk/push-options-via-transport-fix:
remote-curl: unquote incoming push-options
t5545: factor out http repository setup
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Test update.
* gs/test-unset-xdg-cache-home:
test-lib.sh: unset XDG_CACHE_HOME
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Many places in "git apply" knew that "/dev/null" that signals
"there is no such file on this side of the diff" can be followed by
whitespace and garbage when parsing a patch, except for one, which
made an otherwise valid patch (e.g. ones from subversion) rejected.
* tk/apply-dev-null-verify-name-fix:
apply: handle Subversion diffs with /dev/null gracefully
apply: demonstrate a problem applying svn diffs
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"git worktree add" learned to run the post-checkout hook, just like
"git clone" runs it upon the initial checkout.
* es/worktree-add-post-checkout-hook:
worktree: add: fix 'post-checkout' not knowing new worktree location
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"git am" has learned the "--quit" option, in addition to the existing
"--abort" option; having the pair mirrors a few other commands like
"rebase" and "cherry-pick".
* nd/am-quit:
am: support --quit
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GIT_DISABLE_UNTRACKED_CACHE and GIT_TEST_UNTRACKED_CACHE are only
sensed for their presense by using getenv(); use git_env_bool()
instead so that GIT_DISABLE_UNTRACKED_CACHE=false would work as
naïvely expected.
Also rename GIT_TEST_UNTRACKED_CACHE to GIT_FORCE_UNTRACKED_CACHE
to express what it does more honestly. Forcing its use may be one
useful thing to do while testing the feature, but testing does not
have to be the only use of the knob.
While at it, avoid repeated calls to git_env_bool() by capturing the
return value from the first call in a static variable.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Explain in 't/README' why it is a bad idea to redirect and verify the
stderr of compound commands, in the hope that future contributions
will follow this advice and the test suite will keep working with '-x'
tracing and /bin/sh.
While at it, since we can now run the test suite with '-x' without
needing a Bash version supporting BASH_XTRACEFD, remove the now
outdated caution note about non-Bash shells from the description of
the '-x' option.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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't1510-repo-setup.sh' checks the stderr of nested function calls way
too many times, resulting in several failures when using '-x' tracing,
unless it's executed with a Bash version supporting BASH_XTRACEFD.
Maybe someday we will clear up this test script, but until then mark
it as 'test_untraceable'.
After this change
make GIT_TEST_OPTS='-x --verbose-log' test
finally fully passes without setting TEST_SHELL_PATH to Bash.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A test in 't9903-bash-prompt.sh' fails when the test script is run
with '-x' tracing and a Bash version not yet supporting BASH_XTRACEFD,
notably the default Bash version shipped in OSX. The reason for the
failure is that the test checks the emptiness of __git_ps1()'s stderr,
which includes the trace of all commands executed within __git_ps1()
as well, throwing off the emptiness check.
Having only a single test checking the empty stderr doesn't bring us
much when none of the other tests do so, so remove this test for now.
After this change t9903 passes with '-x', even when running with a
Bash version not yet supporing BASH_XTRACEFD.
In the future we might want to consider checking the emptiness of
__git_ps1()'s stderr in each and every test, in which case we'd have
to mark this test script as 'test_untraceable', but that's a different
topic.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The test 'no-op fetch without "-v" is quiet' in 't5570-git-daemon.sh'
fails when the test script is run with '-x' tracing (and using a shell
other than a Bash version supporting BASH_XTRACEFD). The reason for
the failure is that the test checks the emptiness of a subshell's
stderr, which includes the trace of commands executed in that subshell
as well, throwing off the emptiness check.
Save the stderr of 'git fetch' only instead of the whole subshell's, so
it remains free from tracing output.
After this change t5570 passes with '-x', even when running with
/bin/sh.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The test 'fetch --recurse-submodules -j2 has the same output
behaviour' in 't5526-fetch-submodules.sh' fails when the test script
is run with '-x' tracing (and using a shell other than a Bash version
supporting BASH_XTRACEFD). The reason of that failure is the
following command:
GIT_TRACE=$(pwd)/../trace.out git fetch <...> 2>../actual.err
because the trace of executing 'pwd' in the command substitution ends
up in 'actual.err' as well, throwing off the subsequent
'test_i18ncmp'.
Use $TRASH_DIRECTORY to specify the path of the GIT_TRACE log file
instead of $(pwd), so the command's stderr remains free from tracing
output.
After this change t5526 passes with '-x', even when running with
/bin/sh.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Three "missing reference" tests in 't5500-fetch-pack.sh' fail when the
test script is run with '-x' tracing (and using a shell other than a
Bash version supporting BASH_XTRACEFD). The reason for those failures
is that the tests check a subshell's stderr, which includes the trace
of executing commands in that subshell as well, throwing off the
comparison with the expected output.
Save the stderr of 'git fetch-pack' only instead of the whole
subshell, so it remains free from tracing output.
After this change t5500 passes with '-x', even when running with
/bin/sh.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The two test checking 'git mmerge-recursive' in an empty worktree in
't3030-merge-recursive.sh' fail when the test script is run with '-x'
tracing (and using a shell other than a Bash version supporting
BASH_XTRACEFD). The reason for those failures is that the tests check
the emptiness of a subshell's stderr, which includes the trace of
commands executed in that subshell as well, throwing off the emptiness
check.
Note that both subshells execute four git commands each, meaning that
checking the emptiness of the whole subshell implicitly ensures that
not only 'git merge-recursive' but none of the other three commands
outputs anything to their stderr. Note also that if one of those
commands were to output anything on its stderr, then the current
combined check would not tell us which one of those four commands the
unexpected output came from.
Save the stderr of those four commands only instead of the whole
subshell, so it remains free from tracing output, and save and check
them individually, so they will show us from which command the
unexpected output came from.
After this change t3030 passes with '-x', even when running with
/bin/sh.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 2071e05ed2 ("t5536: new test of refspec conflicts when
fetching", 2013-10-30), introduced the verify_stderr() function
which was used to verify that certain fatal/warning messages were
issued by a given git command. In addition, verify_stderr() would
filter a specific "fatal: The remote end hung up unexpectedly"
message, which may, or may not, be present (depending on the
relative timing of the git-fetch and git-upload-pack processes).
The verify_stderr() function has seen several modifications, which
has introduced a couple of minor problems. For example, commit
1edbaac3bb ("tests: use test_i18n* functions to suppress false
positives", 2016-06-17) introduced an inappropriate test_i18ngrep
call and commit f096e6e826 ("fetch: improve the error messages
emitted for conflicting refspecs", 2013-10-30) included an
ineffective invocation of sort at the end of a grep pipeline.
Instead of fixing these minor problems in verify_stderr(), we take
the simpler approach of directly searching the error file, using
test_i18ngrep, for the specific message(s) we expect. (The only
minor downside is that we would not notice any new messages).
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Certain information is currently shown with --summary, but when used
in combination with --stat it's a bit hard to read since info of the
same file is in two places (--stat and --summary).
On top of that, commits that add or remove files double the number of
display lines, which could be a lot if you add or remove a lot of
files.
--compact-summary embeds most of --summary back in --stat in the
little space between the file name part and the graph line, e.g. with
commit 0433d533f1:
Documentation/merge-config.txt | 4 +
builtin/merge.c | 2 +
...-pull-verify-signatures.sh (new +x) | 81 ++++++++++++++
t/t7612-merge-verify-signatures.sh | 45 ++++++++
4 files changed, 132 insertions(+)
It helps both condensing information and saving some text
space. What's new in diffstat is:
- A new 0644 file is shown as (new)
- A new 0755 file is shown as (new +x)
- A new symlink is shown as (new +l)
- A deleted file is shown as (gone)
- A mode change adding executable bit is shown as (mode +x)
- A mode change removing it is shown as (mode -x)
Note that --compact-summary does not contain all the information
--summary provides. Rewrite percentage is not shown but it could be
added later, like R50% or C20%.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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9ba95ed23c (perf/run: update get_var_from_env_or_config() for
subsections) stopped setting a default value for GIT_PERF_REPEAT_COUNT
if no perf config file is present, because get_var_from_env_or_config
returns early in that case.
Fix it by setting the default value after calling this function. Its
fifth parameter is not used for any other variable, so remove the
associated code.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The helper function test_must_be_empty is meant to make sure the
given file is empty, but its implementation is:
if test -s "$1"
then
... not empty, we detected a failure ...
fi
Surely, the file having non-zero size is a sign that the condition
"the file must be empty" is violated, but it misses the case where
the file does not even exist. It is an accident waiting to happen
with a buggy test like this:
git frotz 2>error-message &&
test_must_be_empty errro-message
that won't get caught until you deliberately break 'git frotz' and
notice why the test does not fail.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Three tests in 't1507-rev-parse-upstream.sh' fail when the test script
is run with '-x' tracing (and using a shell other than a Bash version
supporting BASH_XTRACEFD). The reason for those failures is that the
tests check the stderr of the function 'error_message', which includes
the trace of commands executed in that function as well, throwing off
the comparison with the expected output.
Save stderr of 'git rev-parse' only instead of the whole function, so
it remains free from tracing output.
After this change t1507 passes with '-x', even when running with
/bin/sh.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The previous patch resolved most of the test failures caused by
running our test suite with '-x' tracing and /bin/sh, and the
following patches in this series will resolve almost all of the
remaining failures. Unfortunately, not yet all.
Add means to disable '-x' tracing for individual test scripts by
setting the $test_untraceable variable to a non-empty value in the
test script before sourcing 'test-lib.sh'. However, since '-x'
tracing is not an issue with recent Bash versions supporting
BASH_XTRACEFD, i.e. v4.1 and later, don't disable tracing when the
test script is run with such a Bash version even when
$test_untraceable is set.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Running a test script with '-x' turns on 'set -x' tracing, the output
of which is normally sent to stderr. This causes a lot of
test failures, because many tests redirect and verify the stderr
of shell functions, most frequently that of 'test_must_fail'.
These issues were worked around somewhat in d88785e424 (test-lib: set
BASH_XTRACEFD automatically, 2016-05-11), so at least we could
reliably run tests with '-x' tracing under a Bash version supporting
BASH_XTRACEFD, i.e. v4.1 and later.
Futhermore, redirecting the stderr of test helper functions like
'test_must_fail' or 'test_expect_code' is the cause of a different
issue as well. If these functions detect something unexpected, they
will write their error messages intended to the user to thier stderr.
However, if their stderr is redirected in order to save and verify the
stderr of the tested git command invoked in the function, then the
function's error messages will be redirected as well. Consequently,
those messages won't reach the user, making the test's verbose output
less useful.
This patch makes it safe to redirect and verify the stderr of those
test helper functions which are meant to run the tested command given
as argument, even when running tests with '-x' and /bin/sh. This is
achieved through a couple of file descriptor redirections:
- Duplicate stderr of the tested command executed in the test helper
function from the function's fd 7 (see next point), to ensure that
the tested command's error messages go to a different fd than the
'-x' trace of the commands executed in the function or the
function's error messages.
- Duplicate the test helper function's fd 7 from the function's
original stderr, meaning that, after taking a detour through fd 7,
the error messages of the tested command do end up on the
function's original stderr.
- Duplicate stderr of the test helper function from fd 4, i.e. the
fd connected to the test script's original stderr and the fd used
for BASH_XTRACEFD. This ensures that the '-x' trace of the
commands executed in the function
- doesn't go to the function's original stderr, so it won't mess
with callers who want to save and verify the tested command's
stderr.
- does go to the same fd independently from the shell running
the test script, be it /bin/sh, an older Bash without
BASH_XTRACEFD, or a more recent Bash already supporting
BASH_XTRACEFD.
Furthermore, this also makes sure that the function's error
messages go to this fd 4, meaning that the user will be able to
see them even if the function's stderr is redirected in the test.
- Specify the latter two redirections above in the test helper
function's definition, so they are performed every time the
function is invoked, without the need to modify the callsites of
the function.
Perform these redirections in those test helper functions which can be
expected to have their stderr redirected, i.e. in the functions
'test_must_fail', 'test_might_fail', 'test_expect_code', 'test_env',
'nongit', 'test_terminal' and 'perl'. Note that 'test_might_fail',
'test_env', and 'nongit' are not involved in any test failures when
running tests with '-x' and /bin/sh.
The other test helper functions are left unchanged, because they
either don't run commands specified as their arguments, or redirecting
their stderr wouldn't make sense, or both.
With this change the number of failures when running the test suite
with '-x' tracing and /bin/sh goes down from 340 failed tests in 43
test scripts to 22 failed tests in 6 scripts (or 23 in 7, if the
system (OSX) uses an older Bash version without BASH_XTRACEFD to run
't9903-bash-prompt.sh').
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When resetting the working tree files recursively, the working tree
of submodules are now also reset to match.
* sb/submodule-update-reset-fix:
submodule: submodule_move_head omits old argument in forced case
unpack-trees: oneway_merge to update submodules
t/lib-submodule-update.sh: fix test ignoring ignored files in submodules
t/lib-submodule-update.sh: clarify test
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