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log: add -P as a synonym for --perl-regexp

Add a short -P option as a synonym for the longer --perl-regexp, for
consistency with the options the corresponding grep invocations
accept.

This was intentionally omitted in commit 727b6fc3ed ("log --grep:
accept --basic-regexp and --perl-regexp", 2012-10-03) for unspecified
future use.

Make it consistent with "grep" rather than to keep it open for future
use, and to avoid the confusion of -P meaning different things for
grep & log, as is the case with the -G option.

As noted in the aforementioned commit the --basic-regexp option can't
have a corresponding -G argument, as the log command already uses that
for -G<regex>.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ævar Arnfjörð Bjarmason 2017-05-25 20:05:24 +00:00 committed by Junio C Hamano
parent 9ec726a412
commit 7531a2dd87
3 changed files with 14 additions and 1 deletions

View file

@ -91,6 +91,7 @@ endif::git-rev-list[]
Consider the limiting patterns to be fixed strings (don't interpret
pattern as a regular expression).
-P::
--perl-regexp::
Consider the limiting patterns to be Perl-compatible regular
expressions.

View file

@ -1996,7 +1996,7 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
DIFF_OPT_SET(&revs->diffopt, PICKAXE_IGNORE_CASE);
} else if (!strcmp(arg, "--fixed-strings") || !strcmp(arg, "-F")) {
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_FIXED;
} else if (!strcmp(arg, "--perl-regexp")) {
} else if (!strcmp(arg, "--perl-regexp") || !strcmp(arg, "-P")) {
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_PCRE;
} else if (!strcmp(arg, "--all-match")) {
revs->grep_filter.all_match = 1;

View file

@ -404,8 +404,20 @@ test_expect_success 'log with various grep.patternType configurations & command-
--grep="(1|2)" >actual.fixed.short-arg &&
git log --pretty=tformat:%s -E \
--grep="\|2" >actual.extended.short-arg &&
if test_have_prereq PCRE
then
git log --pretty=tformat:%s -P \
--grep="[\d]\|" >actual.perl.short-arg
else
test_must_fail git log -P \
--grep="[\d]\|"
fi &&
test_cmp expect.fixed actual.fixed.short-arg &&
test_cmp expect.extended actual.extended.short-arg &&
if test_have_prereq PCRE
then
test_cmp expect.perl actual.perl.short-arg
fi &&
git log --pretty=tformat:%s --fixed-strings \
--grep="(1|2)" >actual.fixed.long-arg &&