The `--trust-exit-code` option for git-diff-tool(1) was introduced via
2b52123fcf (difftool: add support for --trust-exit-code, 2014-10-26).
When set, it makes us return the exit code of the invoked diff tool when
diffing multiple files. This patch didn't change the code path where
`--dir-diff` was passed because we already returned the exit code of the
diff tool unconditionally in that case.
This was changed a month later via c41d3fedd8 (difftool--helper: add
explicit exit statement, 2014-11-20), where an explicit `exit 0` was
added to the end of git-difftool--helper.sh. While the stated intent of
that commit was merely a cleanup, it had the consequence that we now
to ignore the exit code of the diff tool when `--dir-diff` was set. This
change in behaviour is thus very likely an unintended side effect of
this patch.
Now there are two ways to fix this:
- We can either restore the original behaviour, which unconditionally
returned the exit code of the diffing tool when `--dir-diff` is
passed.
- Or we can make the `--dir-diff` case respect the `--trust-exit-code`
flag.
The fact that we have been ignoring exit codes for 7 years by now makes
me rather lean towards the latter option. Furthermore, respecting the
flag in one case but not the other would needlessly make the user
interface more complex.
Fix the bug so that we also honor `--trust-exit-code` for dir diffs and
adjust the documentation accordingly.
Reported-by: Jean-Rémy Falleri <jr.falleri@gmail.com>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Recent conversion to allow more than 0/1 in GIT_FLUSH broke the
mechanism by flipping what yes/no means by mistake, which has been
corrected.
* cp/git-flush-is-an-env-bool:
write-or-die: fix the polarity of GIT_FLUSH environment variable
"git stash" sometimes was silent even when it failed due to
unwritable index file, which has been corrected.
* ps/report-failure-from-git-stash:
builtin/stash: report failure to write to index
A failed "git tag -s" did not necessarily result in an error
depending on the crypto backend, which has been corrected.
* jc/sign-buffer-failure-propagation-fix:
ssh signing: signal an error with a negative return value
tag: fix sign_buffer() call to create a signed tag
"git diff --no-index file1 file2" segfaulted while invoking the
external diff driver, which has been corrected.
* jk/diff-external-with-no-index:
diff: handle NULL meta-info when spawning external diff
"git diff --no-rename A B" did not disable rename detection but did
not trigger an error from the command line parser.
* rs/parse-options-with-keep-unknown-abbrev-fix:
parse-options: simplify positivation handling
parse-options: fully disable option abbreviation with PARSE_OPT_KEEP_UNKNOWN
Rename detection logic ignored the final line of a file if it is an
incomplete line.
* en/diffcore-delta-final-line-fix:
diffcore-delta: avoid ignoring final 'line' of file
Update to a new feature recently added, "git show-ref --exists".
* tc/show-ref-exists-fix:
builtin/show-ref: treat directory as non-existing in --exists
When GIT_FLUSH is set to 1, true, on, yes, then we should disable
skip_stdout_flush, but the conversion somehow did the opposite.
With the understanding of the original motivation behind "skip" in
06f59e9f (Don't fflush(stdout) when it's not helpful, 2007-06-29),
we can sympathize with the current naming (we wanted to avoid
useless flushing of stdout by default, with an escape hatch to
always flush), but it is still not a good excuse.
Retire the "skip_stdout_flush" variable and replace it with "flush_stdout"
that tells if we do or do not want to run fflush().
Reported-by: Xiaoguang WANG <wxiaoguang@gmail.com>
Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Sideband demultiplexer fixes.
* jx/sideband-chomp-newline-fix:
pkt-line: do not chomp newlines for sideband messages
pkt-line: memorize sideband fragment in reader
test-pkt-line: add option parser for unpack-sideband
Doc update.
* js/contributor-docs-updates:
SubmittingPatches: hyphenate non-ASCII
SubmittingPatches: clarify GitHub artifact format
SubmittingPatches: clarify GitHub visual
SubmittingPatches: provide tag naming advice
SubmittingPatches: update extra tags list
SubmittingPatches: discourage new trailers
SubmittingPatches: drop ref to "What's in git.git"
CodingGuidelines: write punctuation marks
CodingGuidelines: move period inside parentheses
Remove unused header "#include".
* en/header-cleanup:
treewide: remove unnecessary includes in source files
treewide: add direct includes currently only pulled in transitively
trace2/tr2_tls.h: remove unnecessary include
submodule-config.h: remove unnecessary include
pkt-line.h: remove unnecessary include
line-log.h: remove unnecessary include
http.h: remove unnecessary include
fsmonitor--daemon.h: remove unnecessary includes
blame.h: remove unnecessary includes
archive.h: remove unnecessary include
treewide: remove unnecessary includes in source files
treewide: remove unnecessary includes from header files
Doc update.
* ml/doc-merge-updates:
Documentation/git-merge.txt: use backticks for command wrapping
Documentation/git-merge.txt: fix reference to synopsis
Doc updates to clarify what an "unborn branch" means.
* jc/orphan-unborn:
orphan/unborn: fix use of 'orphan' in end-user facing messages
orphan/unborn: add to the glossary and use them consistently
Code clean-up.
* la/trailer-cleanups:
trailer: use offsets for trailer_start/trailer_end
trailer: find the end of the log message
commit: ignore_non_trailer computes number of bytes to ignore
Doc updates.
* jc/doc-most-refs-are-not-that-special:
docs: MERGE_AUTOSTASH is not that special
docs: AUTO_MERGE is not that special
refs.h: HEAD is not that special
git-bisect.txt: BISECT_HEAD is not that special
git.txt: HEAD is not that special
Bunch of small fix-ups to the reftable code.
* ps/reftable-fixes:
reftable/block: reuse buffer to compute record keys
reftable/block: introduce macro to initialize `struct block_iter`
reftable/merged: reuse buffer to compute record keys
reftable/stack: fix use of unseeded randomness
reftable/stack: fix stale lock when dying
reftable/stack: reuse buffers when reloading stack
reftable/stack: perform auto-compaction with transactional interface
reftable/stack: verify that `reftable_stack_add()` uses auto-compaction
reftable: handle interrupted writes
reftable: handle interrupted reads
reftable: wrap EXPECT macros in do/while
Code clean-up around use of configuration variables.
* jk/config-cleanup:
sequencer: simplify away extra git_config_string() call
gpg-interface: drop pointless config_error_nonbool() checks
push: drop confusing configset/callback redundancy
config: use git_config_string() for core.checkRoundTripEncoding
diff: give more detailed messages for bogus diff.* config
config: use config_error_nonbool() instead of custom messages
imap-send: don't use git_die_config() inside callback
git_xmerge_config(): prefer error() to die()
config: reject bogus values for core.checkstat
Clean-up code that handles combinations of incompatible options.
* rs/incompatible-options-messages:
worktree: simplify incompatibility message for --orphan and commit-ish
worktree: standardize incompatibility messages
clean: factorize incompatibility message
revision, rev-parse: factorize incompatibility messages about - -exclude-hidden
revision: use die_for_incompatible_opt3() for - -graph/--reverse/--walk-reflogs
repack: use die_for_incompatible_opt3() for -A/-k/--cruft
push: use die_for_incompatible_opt4() for - -delete/--tags/--all/--mirror
Tests update.
* ps/ref-tests-update-more:
t6301: write invalid object ID via `test-tool ref-store`
t5551: stop writing packed-refs directly
t5401: speed up creation of many branches
t4013: simplify magic parsing and drop "failure"
t3310: stop checking for reference existence via `test -f`
t1417: make `reflog --updateref` tests backend agnostic
t1410: use test-tool to create empty reflog
t1401: stop treating FETCH_HEAD as real reference
t1400: split up generic reflog tests from the reffile-specific ones
t0410: mark tests to require the reffiles backend