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When 98ea309b3f (mergetool: add hideResolved configuration,
2021-02-09) introduced the mergetool.hideResolved setting to reduce
the clutter in viewing non-conflicted sections of files in a
mergetool, it enabled it by default, explaining:
No adverse effects were noted in a small survey of popular mergetools[1]
so this behavior defaults to `true`.
In practice, alas, adverse effects do appear. A few issues:
1. No indication is shown in the UI that the base, local, and remote
versions shown have been modified by additional resolution. This
is inherent in the design: the idea of mergetool.hideResolved is to
convince a mergetool that expects pristine local, base, and remote
files to show partially resolved verisons of those files instead;
there is no additional source of information accessible to the
mergetool to see where the resolution has happened.
(By contrast, a mergetool generating the partial resolution from
conflict markers for itself would be able to hilight the resolved
sections with a different color.)
A user accustomed to seeing the files without partial resolution
gets no indication that this behavior has changed when they upgrade
Git.
2. If the computed merge did not line up the files correctly (for
example due to repeated sections in the file), the partially
resolved files can be misleading and do not have enough information
to reconstruct what happened and compute the correct merge result.
3. Resolving a conflict can involve information beyond the textual
conflict. For example, if the local and remote versions added
overlapping functionality in different ways, seeing the full
unresolved versions of each alongside the base gives information
about each side's intent that makes it possible to come up with a
resolution that combines those two intents. By contrast, when
starting with partially resolved versions of those files, one can
produce a subtly wrong resolution that includes redundant extra
code added by one side that is not needed in the approach taken
on the other.
All that said, a user wanting to focus on textual conflicts with
reduced clutter can still benefit from mergetool.hideResolved=true as
a way to deemphasize sections of the code that resolve cleanly without
requiring any changes to the invoked mergetool. The caveats described
above are reduced when the user has explicitly turned this on, because
then the user is aware of them.
Flip the default to 'false'.
Reported-by: Dana Dahlstrom <dahlstrom@google.com>
Helped-by: Seth House <seth@eseth.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a per-tool override flag so that users may enable the flag for one
tool and disable it for another by setting
`mergetool.<tool>.hideResolved` to `false`.
In addition, the author or maintainer of a mergetool may optionally
override the default `hideResolved` value for that mergetool. If the
`mergetools/<tool>` shell script contains a `hide_resolved_enabled`
function it will be called when the mergetool is invoked and the return
value will be used as the default for the `hideResolved` flag.
hide_resolved_enabled () {
return 1
}
Disabling may be desirable if the mergetool wants or needs access to the
original, unmodified 'LOCAL' and 'REMOTE' versions of the conflicted
file. For example:
- A tool may use a custom conflict resolution algorithm and prefer to
ignore the results of Git's conflict resolution.
- A tool may want to visually compare/constrast the version of the file
from before the merge (saved to 'LOCAL', 'REMOTE', and 'BASE') with
Git's conflict resolution results (saved to 'MERGED').
Helped-by: Johannes Sixt <j6t@kdbg.org>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Seth House <seth@eseth.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is preparation for the following commit where we need to source the
mergetool shell script to look for overrides before `run_merge_tool` is
called. Previously `run_merge_tool` both sourced that script and invoked
the mergetool.
In the case of the following commit, we need the result of the
`hide_resolved` override, if present, before we actually run
`run_merge_tool`.
The new `initialize_merge_tool` wrapper is exposed and documented as
a public interface for consistency with the existing `run_merge_tool`
which is also public. Although `setup_tool` could instead be exposed
directly, the related `setup_user_tool` would probably also want to be
elevated to match and this felt the cleanest to me.
Signed-off-by: Seth House <seth@eseth.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The purpose of a mergetool is to help the user resolve any conflicts
that Git cannot automatically resolve. If there is a conflict that must
be resolved manually Git will write a file named MERGED which contains
everything Git was able to resolve by itself and also everything that it
was not able to resolve wrapped in conflict markers.
One way to think of MERGED is as a two- or three-way diff. If each
"side" of the conflict markers is separately extracted an external tool
can represent those conflicts as a side-by-side diff.
However many mergetools instead diff LOCAL and REMOTE both of which
contain versions of the file from before the merge. Since the conflicts
Git resolved automatically are not present it forces the user to
manually re-resolve those conflicts. Some mergetools also show MERGED
but often only for reference and not as the focal point to resolve the
conflicts.
This adds a `mergetool.hideResolved` flag that will overwrite LOCAL and
REMOTE with each corresponding "side" of a conflicted file and thus hide
all conflicts that Git was able to resolve itself. Overwriting these
files will immediately benefit any mergetool that uses them without
requiring any changes to the tool.
No adverse effects were noted in a small survey of popular mergetools[1]
so this behavior defaults to `true`. However it can be globally disabled
by setting `mergetool.hideResolved` to `false`.
[1] https://www.eseth.org/2020/mergetools.html
https://github.com/whiteinge/eseth/blob/c884424769fffb05d87afb33b2cf80cecb4044c3/2020/mergetools.md
Original-implementation-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Seth House <seth@eseth.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git diff -I<pattern> -exit-code" should exit with 0 status when
all the changes match the ignored pattern, but it didn't.
* jc/diff-I-status-fix:
diff: correct interaction between --exit-code and -I<pattern>
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Dev-support fix for BSD.
* es/perf-export-fix:
t/perf: fix test_export() failure with BSD `sed`
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Build update.
* rb/nonstop-config-mak-uname-update:
config.mak.uname: remove old NonStop compatibility settings
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Code clean-up.
* ab/unreachable-break:
style: do not "break" in switch() after "return"
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C-std compliance fix.
* jc/strmap-remove-typefix:
strmap: make callers of strmap_remove() to call it in void context
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Fix a recent bug in a rarely used replacement code.
* jc/compat-util-setitimer-fix:
compat-util: pretend that stub setitimer() always succeeds
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Doc update.
* dd/doc-p4-requirements-update:
doc: mention Python 3.x supports
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Our users are going to be trained to prepare for future change of
init.defaultBranch configuration variable.
* js/init-defaultbranch-advice:
init: provide useful advice about init.defaultBranch
get_default_branch_name(): prepare for showing some advice
branch -m: allow renaming a yet-unborn branch
init: document `init.defaultBranch` better
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* https://github.com/prati0100/git-gui:
git-gui: use gray background for inactive text widgets
git-gui: Fix selected text colors
Makefile: conditionally include GIT-VERSION-FILE
git-gui: fix colored label backgrounds when using themed widgets
git-gui: ssh-askpass: add a checkbox to show the input text
git-gui: update Russian translation
git-gui: use commit message template
git-gui: Only touch GITGUI_MSG when needed
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Set a different background color for selections in inactive widgets.
This inactive color is calculated from the current theme colors to make
sure it works for all themes.
* sh/inactive-background:
git-gui: use gray background for inactive text widgets
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This makes it easier to see at a glance which of the four main views has the
keyboard focus.
Signed-off-by: Stefan Haller <stefan@haller-berlin.de>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc update.
* jh/index-v2-doc-on-fsmn:
index-format.txt: document v2 format of file system monitor extension
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Doc update.
* jb/midx-doc-update:
docs: multi-pack-index: remove note about future 'verify' work
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Build optimization.
* rj/make-clean:
Makefile: don't use a versioned temp distribution directory
Makefile: don't try to clean old debian build product
gitweb/Makefile: conditionally include ../GIT-VERSION-FILE
Documentation/Makefile: conditionally include ../GIT-VERSION-FILE
Documentation/Makefile: conditionally include doc.dep
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Test update.
* js/t7064-master-to-initial:
t7064: avoid relying on a specific default branch name
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Test update.
* js/t6300-hardcode-main:
t6300: avoid using the default name of the initial branch
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Code clean-up.
* jk/oid-array-cleanup:
commit-graph: use size_t for array allocation and indexing
commit-graph: replace packed_oid_list with oid_array
commit-graph: drop count_distinct_commits() function
oid-array: provide a for-loop iterator
oid-array: make sort function public
cache.h: move hash/oid functions to hash.h
t0064: make duplicate tests more robust
t0064: drop sha1 mention from filename
oid-array.h: drop sha1 mention from header guard
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Fix potential server side resource deallocation issues when
responding to a partial clone request.
* tb/partial-clone-filters-fix:
upload-pack.c: don't free allowed_filters util pointers
builtin/clone.c: don't ignore transport_fetch_refs() errors
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Hotfix for test breakage.
* js/t7900-protect-pwd-in-config-get:
t7900: use --fixed-value in git-maintenance tests
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Set colors for selected text properly.
* st/selected-text-colors:
git-gui: Fix selected text colors
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Added selected state colors for text widget.
Same colors for active and inactive selection, to match previous
behaviour.
Signed-off-by: Serg Tereshchenko <serg.partizan@gmail.com>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
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Speed up 'make clean' on Cygwin.
* rj/clean-speedup:
Makefile: conditionally include GIT-VERSION-FILE
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The 'clean' target is noticeably slow on cygwin, even for a 'do-nothing'
invocation of 'make clean'. For example, the second 'make clean' given
below:
$ make clean >/dev/null 2>&1
$ make clean
GITGUI_VERSION = 0.21.0.85.g3e5c
rm -rf git-gui lib/tclIndex po/*.msg
rm -rf GIT-VERSION-FILE GIT-GUI-VARS
$
has been timed at 1.934s on my laptop (an old core i5-4200M @ 2.50GHz,
8GB RAM, 1TB HDD).
Notice that the Makefile, as part of processing the 'clean' target, is
updating the 'GIT-VERSION-FILE' file. This is to ensure that the
$(GITGUI_VERSION) make variable is set, once that file had been included.
However, the 'clean' target does not use the $(GITGUI_VERSION) variable,
so this is wasted effort.
In order to eliminate such wasted effort, use the value of the internal
$(MAKECMDGOALS) variable to only '-include GIT-VERSION-FILE' when the
target is not 'clean'. (This drops the time down to 0.676s, on my laptop,
giving an improvement of 65.05%).
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
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Fix label background colors on MacOS when ttk is enabled.
* sh/macos-labels:
git-gui: fix colored label backgrounds when using themed widgets
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The aqua theme on Mac doesn't support changing the background color for labels
and frames [1]. Since the red, green, and yellow backgrounds of the labels for
unstaged and staged files and the diff pane are so important design elements of
git gui's main window, it's not acceptable for them to have grey backgrounds on
Mac.
To work around this, simply use non-themed widgets for all labels on Mac. This
is not a big problem because labels don't look extremely different between the
themed and non-themed versions. There are subtle differences, but they are not
as bad as having the wrong background color.
[1] https://stackoverflow.com/a/6723911
Signed-off-by: Stefan Haller <stefan@haller-berlin.de>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
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The MKDIR_WO_TRAILING_SLASH and NO_SETITIMER options are no longer
needed on the NonStop platforms as both are now supported by the
oldest supported operating system revision.
Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Just like "git diff -w --exit-code" should exit with 0 when ignoring
whitespace differences results in no changes shown, if ignoring
certain changes with "git diff -I<pattern> --exit-code" result in an
empty patch, we should exit with 0.
The test suite did not cover the interaction between "--exit-code"
and "-w"; add one while adding a new test for "--exit-code" + "-I".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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test_perf() runs each test in its own subshell which makes it difficult
to persist variables between tests. test_export() addresses this
shortcoming by grabbing the values of specified variables after a test
runs but before the subshell exits, and writes those values to a file
which is loaded into the environment of subsequent tests.
To grab the values to be persisted, test_export() pipes the output of
the shell's builtin `set` command through `sed` which plucks them out
using a regular expression along the lines of `s/^(var1|var2)/.../p`.
Unfortunately, though, this use of alternation is not portable. For
instance, BSD-lineage `sed` (including macOS `sed`) does not support it
in the default "basic regular expression" mode (BRE). It may be possible
to enable "extended regular expression" mode (ERE) in some cases with
`sed -E`, however, `-E` is neither portable nor part of POSIX.
Fortunately, alternation is unnecessary in this case and can easily be
avoided, so replace it with a series of simple expressions such as
`s/^var1/.../p;s/^var2/.../p`.
While at it, tighten the expressions so they match the variable names
exactly rather than matching prefixes (i.e. use `s/^var1=/.../p`).
If the requirements of test_export() become more complex in the future,
then an alternative would be to replace `sed` with `perl` which supports
alternation on all platforms, however, the simple elimination of
alternation via multiple `sed` expressions suffices for the present.
Reported-by: Sangeeta <sangunb09@gmail.com>
Diagnosed-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove this unreachable code. It was found by SunCC, it's found by a
non-fatal warning emitted by SunCC. It's one of the things it's more
vehement about than GCC & Clang.
It complains about a lot of other similarly unreachable code, e.g. a
BUG(...) without a "return", and a "return 0" after a long if/else,
both of whom have "return" statements. Those are also genuine
redundancies to a compiler, but arguably make the code a bit easier to
read & less fragile to maintain.
These return/break cases are just unnecessary however, and as seen
here the surrounding code just did a plain "return" without a "break"
already.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When 15b52a44 (compat-util: type-check parameters of no-op
replacement functions, 2020-08-06) turned a handful of no-op
C-preprocessor macros into static inline functions to give the
callers a better type checking for their parameters, it forgot
to return anything from the stubbed out setitimer() function,
even though the function was defined to return an int just like the
real thing.
Since the original C-preprocessor macro implementation was to just
turn the call to the function an empty statement, we know that the
existing callers do not check the return value from it, and it does
not matter what value we return. But it is safer to pretend that
the call succeeded by returning 0 than making it fail by returning -1
and clobbering errno with some value.
Reported-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Two "static inline" functions, both of which return void, call
strmap_remove() and tries to return the value it returns as their
return value, which is just bogus, as strmap_remove() returns void
itself. Call it in the void context and fall-thru the control to
the end instead.
Reported-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 0b4396f068, (git-p4: make python2.7 the oldest supported version,
2019-12-13) pointed out that git-p4 uses Python 2.7-or-later features
in the code.
In addition, git-p4 gained enough support for Python 3 from
6cec21a82f, (git-p4: encode/decode communication with p4 for
python3, 2019-12-13).
Let's update our documentation to reflect that fact.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test update.
* js/t5526-with-no-particular-primary-branch-name:
t5526: drop the prereq expecting the default branch name `main`
t5526: avoid depending on a specific default branch name
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VSbuild fix.
* js/cmake-extra-built-ins-fix:
cmake: determine list of extra built-ins dynamically
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Build update.
* da/vs-build-iconv-fix:
ci(vs-build): stop passing the iconv library location explicitly
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Style fix.
* jk/multi-line-indent-style-fix:
style: indent multiline "if" conditions to align
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Tighten error checking in the codepath that responds to "git fetch".
* jk/check-config-parsing-error-in-upload-pack:
upload-pack: propagate return value from object filter config callback
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Newer versions of xsltproc can assign IDs in HTML documents it
generates in a consistent manner. Use the feature to help format
HTML version of the user manual reproducibly.
* ae/doc-reproducible-html:
doc: make HTML manual reproducible
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The glossary described a branch as an "active" line of development,
which is misleading---a stale and non-moving branch is still a
branch.
* so/glossary-branch-is-not-necessarily-active:
glossary: improve "branch" definition
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"@" sometimes worked (e.g. "git push origin @:there") as a part of
a refspec element, but "git push origin @" did not work, which has
been corrected.
* fc/atmark-in-refspec:
refspec: make @ a synonym of HEAD
tests: push: trivial cleanup
tests: push: improve cleanup of HEAD tests
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"git $cmd $args", when $cmd is not a recognised subcommand, by
default tries to see if $cmd is a typo of an existing subcommand
and optionally executes the corrected command if there is only one
possibility, depending on the setting of help.autocorrect; the
users can now disable the whole thing, including the cycles spent
to find a likely typo, by setting the configuration variable to
'never'.
* dd/help-autocorrect-never:
help.c: help.autocorrect=never means "do not compute suggestions"
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Update the documentation of the file system monitor extension to
describe version 2.
The format was extended to support opaque tokens in:
56c6910028 fsmonitor: change last update timestamp on the index_state to opaque token
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This was implemented in the 'git multi-pack-index' command and
merged in 468b3221 (Merge branch 'ds/multi-pack-verify',
2018-10-10).
And there's no 'git midx' command.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Jonathan Nieder
Seth House
Junio C Hamano
Pratyush Yadav
Stefan Haller
Serg Tereshchenko
Ramsay Jones
Randall S. Becker
Eric Sunshine
Ævar Arnfjörð Bjarmason
Đoàn Trần Công Danh
Jeff Hostetler
Johannes Berg