The construct "var=$(( something ..." is interpreted by some shells as
arithmetic expansion, even when it clearly is not, e.g.
var=$((foo; bar) | baz)
Avoid the issue by giving an extra SP to help the parser, i.e.
var=$( (foo; bar) | baz )
Noticed by Michael J Gruber.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is useful if you forgot to restrict the diff to the paths you want
to see, or selecting precisely the ones you want is too much typing.
[jc: with a change to return from the function upon 'n' by Charles Bailey
and a small tweak in stdin_doesnot_contain() in the test]
Signed-off-by: Sitaram Chamarty <sitaram@atc.tcs.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As we seem to need this variable that holds a single LF character
in many places, define it in test-lib.sh and let the test scripts
use it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Also remove a call to 'git config --unset difftool.prompt', since that is
already unset by restore_test_defaults.
Acked-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change t/t7800-difftool.sh to to skip with the the three-arg prereq
form of test_expect_success instead of bailing out.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
SKIP messages are now part of the TAP plan. A TAP harness now knows
why a particular test was skipped and can report that information. The
non-TAP harness built into Git's test-lib did nothing special with
these messages, and is unaffected by these changes.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When diff.guitool is unconfigured and "--gui" is specified
git-difftool dies with the following error message:
config diff.guitool: command returned error: 1
Catch the error so that the "--gui" flag is a no-op when
diff.guitool is unconfigured.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
4cacc621 made difftool fall back to mergetool.prompt
when difftool.prompt is unconfigured. This adds a test.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It was not possible to pass quoted commands to '--extcmd'.
By using 'eval' we ensure that expressions with spaces and
quotes are supported.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This adds '-x' as a shorthand for the '--extcmd' option.
Arguments to '--extcmd' can be specified separately, which
was not originally possible.
This also fixes the brief help text so that it mentions
both '-x' and '--extcmd'.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of running 'grep', 'echo', and 'wc' we simply compare
git-difftool's output against a known good value.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-difftool requires difftool.<tool>.cmd configuration even when
tools use the standard "$diffcmd $from $to" form. This teaches
git-difftool to run these tools in lieu of configuration by
allowing the command to be specified on the command line.
Reference: http://article.gmane.org/gmane.comp.version-control.git/133377
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
An undocumented mis-feature in git-difftool is that it allows you
to specify a default difftool by setting GIT_MERGE_TOOL.
This behavior was never documented and was included as an
oversight back when git-difftool was maintained outside of git.
git-mergetool never honored GIT_MERGE_TOOL so neither should
git-difftool.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Users might prefer to have git-difftool use a different
tool when run from a Git GUI.
This teaches git-difftool to honor 'diff.guitool' when
the '--gui' option is specified. This allows users to
configure their preferred command-line diff tool in
'diff.tool' and a GUI diff tool in 'diff.guitool'.
Reference: http://article.gmane.org/gmane.comp.version-control.git/133386
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If a difftool test has an error then running the git test suite
may end up invoking a GUI diff tool. We now guard against this
by setting a difftool.bogus-tool.cmd variable.
The tests already used --tool=bogus-tool in various places so
this is simply ensuring that nothing ever falls back and
finds a real diff tool.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
GIT_DIFFTOOL_PROMPT doesn't have any effect if overridden with --prompt.
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Difftool is written in perl, so we don't build it if NO_PERL
is set.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
difftool now supports difftool.prompt so that users do not have to
pass --no-prompt or hit enter each time a diff tool is launched.
The --prompt flag overrides the configuration variable.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
t7800-difftool.sh tests the various command-line flags,
git-config variables, and environment settings supported by
git-difftool.
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
