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grep: further simplify setting the pattern type

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When c5c31d33 (grep: move pattern-type bits support to top-level
grep.[ch], 2012-10-03) introduced grep_commit_pattern_type() helper
function, the intention was to allow the users of grep API to having
to fiddle only with .pattern_type_option (which can be set to "fixed",
"basic", "extended", and "pcre"), and then immediately before compiling
the pattern strings for use, call grep_commit_pattern_type() to have
it prepare various bits in the grep_opt structure (like .fixed,
.regflags, etc.).

However, grep_set_pattern_type_option() helper function the grep API
internally uses were left as an external function by mistake.  This
function shouldn't have been made callable by the users of the API.

Later when the grep API was used in revision traversal machinery,
the caller then mistakenly started calling the function around
34a4ae55 (log --grep: use the same helper to set -E/-F options as
"git grep", 2012-10-03), instead of setting the .pattern_type_option
field and letting the grep_commit_pattern_type() to take care of the
details.

This caused an unnecessary bug that made a configured
grep.patternType take precedence over the command line options
(e.g. --basic-regexp, --fixed-strings) in "git log" family of
commands.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2016-07-22 11:43:14 -07:00
parent 765428699a
commit 8465541e8c
4 changed files with 29 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
grep.c
View File

@ -161,17 +161,7 @@ void grep_init(struct grep_opt *opt, const char *prefix)
strcpy(opt->color_sep, def->color_sep);
}
void grep_commit_pattern_type(enum grep_pattern_type pattern_type, struct grep_opt *opt)
{
if (pattern_type != GREP_PATTERN_TYPE_UNSPECIFIED)
grep_set_pattern_type_option(pattern_type, opt);
else if (opt->pattern_type_option != GREP_PATTERN_TYPE_UNSPECIFIED)
grep_set_pattern_type_option(opt->pattern_type_option, opt);
else if (opt->extended_regexp_option)
grep_set_pattern_type_option(GREP_PATTERN_TYPE_ERE, opt);
}
void grep_set_pattern_type_option(enum grep_pattern_type pattern_type, struct grep_opt *opt)
static void grep_set_pattern_type_option(enum grep_pattern_type pattern_type, struct grep_opt *opt)
{
switch (pattern_type) {
case GREP_PATTERN_TYPE_UNSPECIFIED:
@ -203,6 +193,16 @@ void grep_set_pattern_type_option(enum grep_pattern_type pattern_type, struct gr
}
}
void grep_commit_pattern_type(enum grep_pattern_type pattern_type, struct grep_opt *opt)
{
if (pattern_type != GREP_PATTERN_TYPE_UNSPECIFIED)
grep_set_pattern_type_option(pattern_type, opt);
else if (opt->pattern_type_option != GREP_PATTERN_TYPE_UNSPECIFIED)
grep_set_pattern_type_option(opt->pattern_type_option, opt);
else if (opt->extended_regexp_option)
grep_set_pattern_type_option(GREP_PATTERN_TYPE_ERE, opt);
}
static struct grep_pat *create_grep_pat(const char *pat, size_t patlen,
const char *origin, int no,
enum grep_pat_token t,

1
grep.h
View File

@ -144,7 +144,6 @@ struct grep_opt {
extern void init_grep_defaults(void);
extern int grep_config(const char *var, const char *value, void *);
extern void grep_init(struct grep_opt *, const char *prefix);
void grep_set_pattern_type_option(enum grep_pattern_type, struct grep_opt *opt);
void grep_commit_pattern_type(enum grep_pattern_type, struct grep_opt *opt);
extern void append_grep_pat(struct grep_opt *opt, const char *pat, size_t patlen, const char *origin, int no, enum grep_pat_token t);

8
revision.c
View File

@ -1964,16 +1964,16 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
} else if (!strcmp(arg, "--grep-debug")) {
revs->grep_filter.debug = 1;
} else if (!strcmp(arg, "--basic-regexp")) {
grep_set_pattern_type_option(GREP_PATTERN_TYPE_BRE, &revs->grep_filter);
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_BRE;
} else if (!strcmp(arg, "--extended-regexp") || !strcmp(arg, "-E")) {
grep_set_pattern_type_option(GREP_PATTERN_TYPE_ERE, &revs->grep_filter);
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_ERE;
} else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) {
revs->grep_filter.regflags |= REG_ICASE;
DIFF_OPT_SET(&revs->diffopt, PICKAXE_IGNORE_CASE);
} else if (!strcmp(arg, "--fixed-strings") || !strcmp(arg, "-F")) {
grep_set_pattern_type_option(GREP_PATTERN_TYPE_FIXED, &revs->grep_filter);
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_FIXED;
} else if (!strcmp(arg, "--perl-regexp")) {
grep_set_pattern_type_option(GREP_PATTERN_TYPE_PCRE, &revs->grep_filter);
revs->grep_filter.pattern_type_option = GREP_PATTERN_TYPE_PCRE;
} else if (!strcmp(arg, "--all-match")) {
revs->grep_filter.all_match = 1;
} else if (!strcmp(arg, "--invert-grep")) {

14
t/t4202-log.sh
View File

@ -232,6 +232,20 @@ test_expect_success 'log -F -E --grep=<ere> uses ere' '
test_cmp expect actual
'
test_expect_success 'log with grep.patternType configuration' '
>expect &&
git -c grep.patterntype=fixed \
log -1 --pretty=tformat:%s --grep=s.c.nd >actual &&
test_cmp expect actual
'
test_expect_success 'log with grep.patternType configuration and command line' '
echo second >expect &&
git -c grep.patterntype=fixed \
log -1 --pretty=tformat:%s --basic-regexp --grep=s.c.nd >actual &&
test_cmp expect actual
'
cat > expect <<EOF
* Second
* sixth