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Merge pull request #1773 from arrbee/fix-fnmatch-prefix

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Revert PR #1462 and provide alternative fix
This commit is contained in:
Russell Belfer 2013-08-09 11:39:38 -07:00
commit d1be9e4ca1
5 changed files with 55 additions and 70 deletions
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85
src/attr_file.c
View File

@ -79,13 +79,17 @@ int git_attr_file__parse_buffer(
while (!error && *scan) {
/* allocate rule if needed */
if (!rule && !(rule = git__calloc(1, sizeof(git_attr_rule)))) {
error = -1;
break;
if (!rule) {
if (!(rule = git__calloc(1, sizeof(git_attr_rule)))) {
error = -1;
break;
}
rule->match.flags = GIT_ATTR_FNMATCH_ALLOWNEG |
GIT_ATTR_FNMATCH_ALLOWMACRO;
}
/* parse the next "pattern attr attr attr" line */
if (!(error = git_attr_fnmatch__parse_gitattr_format(
if (!(error = git_attr_fnmatch__parse(
&rule->match, attrs->pool, context, &scan)) &&
!(error = git_attr_assignment__parse(
repo, attrs->pool, &rule->assigns, &scan)))
@ -337,54 +341,7 @@ void git_attr_path__free(git_attr_path *info)
* GIT_ENOTFOUND if the fnmatch does not require matching, or
* another error code there was an actual problem.
*/
int git_attr_fnmatch__parse_gitattr_format(
git_attr_fnmatch *spec,
git_pool *pool,
const char *source,
const char **base)
{
const char *pattern;
assert(spec && base && *base);
pattern = *base;
while (git__isspace(*pattern)) pattern++;
if (!*pattern || *pattern == '#') {
*base = git__next_line(pattern);
return GIT_ENOTFOUND;
}
if (*pattern == '[') {
if (strncmp(pattern, "[attr]", 6) == 0) {
spec->flags = spec->flags | GIT_ATTR_FNMATCH_MACRO;
pattern += 6;
}
/* else a character range like [a-e]* which is accepted */
}
if (*pattern == '!') {
spec->flags = spec->flags | GIT_ATTR_FNMATCH_NEGATIVE;
pattern++;
}
if (git_attr_fnmatch__parse_shellglob_format(spec, pool,
source, &pattern) < 0)
return -1;
*base = pattern;
return 0;
}
/*
* Fills a spec for the purpose of pure pathspec matching, not
* related to a gitattribute file parsing.
*
* This will return 0 if the spec was filled out, or
* another error code there was an actual problem.
*/
int git_attr_fnmatch__parse_shellglob_format(
int git_attr_fnmatch__parse(
git_attr_fnmatch *spec,
git_pool *pool,
const char *source,
@ -398,9 +355,30 @@ int git_attr_fnmatch__parse_shellglob_format(
if (parse_optimized_patterns(spec, pool, *base))
return 0;
allow_space = (spec->flags & GIT_ATTR_FNMATCH_ALLOWSPACE) != 0;
spec->flags = (spec->flags & GIT_ATTR_FNMATCH__INCOMING);
allow_space = ((spec->flags & GIT_ATTR_FNMATCH_ALLOWSPACE) != 0);
pattern = *base;
while (git__isspace(*pattern)) pattern++;
if (!*pattern || *pattern == '#') {
*base = git__next_line(pattern);
return GIT_ENOTFOUND;
}
if (*pattern == '[' && (spec->flags & GIT_ATTR_FNMATCH_ALLOWMACRO) != 0) {
if (strncmp(pattern, "[attr]", 6) == 0) {
spec->flags = spec->flags | GIT_ATTR_FNMATCH_MACRO;
pattern += 6;
}
/* else a character range like [a-e]* which is accepted */
}
if (*pattern == '!' && (spec->flags & GIT_ATTR_FNMATCH_ALLOWNEG) != 0) {
spec->flags = spec->flags | GIT_ATTR_FNMATCH_NEGATIVE;
pattern++;
}
slash_count = 0;
for (scan = pattern; *scan != '\0'; ++scan) {
/* scan until (non-escaped) white space */
@ -636,7 +614,6 @@ static void git_attr_rule__clear(git_attr_rule *rule)
/* match.pattern is stored in a git_pool, so no need to free */
rule->match.pattern = NULL;
rule->match.length = 0;
rule->match.flags = 0;
}
void git_attr_rule__free(git_attr_rule *rule)

14
src/attr_file.h
View File

@ -28,6 +28,12 @@
#define GIT_ATTR_FNMATCH_ALLOWSPACE (1U << 6)
#define GIT_ATTR_FNMATCH_ICASE (1U << 7)
#define GIT_ATTR_FNMATCH_MATCH_ALL (1U << 8)
#define GIT_ATTR_FNMATCH_ALLOWNEG (1U << 9)
#define GIT_ATTR_FNMATCH_ALLOWMACRO (1U << 10)
#define GIT_ATTR_FNMATCH__INCOMING \
(GIT_ATTR_FNMATCH_ALLOWSPACE | \
GIT_ATTR_FNMATCH_ALLOWNEG | GIT_ATTR_FNMATCH_ALLOWMACRO)
extern const char *git_attr__true;
extern const char *git_attr__false;
@ -115,13 +121,7 @@ extern uint32_t git_attr_file__name_hash(const char *name);
* other utilities
*/
extern int git_attr_fnmatch__parse_gitattr_format(
git_attr_fnmatch *spec,
git_pool *pool,
const char *source,
const char **base);
extern int git_attr_fnmatch__parse_shellglob_format(
extern int git_attr_fnmatch__parse(
git_attr_fnmatch *spec,
git_pool *pool,
const char *source,

4
src/ignore.c
View File

@ -37,9 +37,9 @@ static int parse_ignore_file(
GITERR_CHECK_ALLOC(match);
}
match->flags = GIT_ATTR_FNMATCH_ALLOWSPACE;
match->flags = GIT_ATTR_FNMATCH_ALLOWSPACE | GIT_ATTR_FNMATCH_ALLOWNEG;
if (!(error = git_attr_fnmatch__parse_gitattr_format(
if (!(error = git_attr_fnmatch__parse(
match, ignores->pool, context, &scan)))
{
match->flags |= GIT_ATTR_FNMATCH_IGNORE;

14
src/pathspec.c
View File

@ -83,9 +83,9 @@ int git_pathspec__vinit(
if (!match)
return -1;
match->flags = GIT_ATTR_FNMATCH_ALLOWSPACE;
match->flags = GIT_ATTR_FNMATCH_ALLOWSPACE | GIT_ATTR_FNMATCH_ALLOWNEG;
ret = git_attr_fnmatch__parse_shellglob_format(match, strpool, NULL, &pattern);
ret = git_attr_fnmatch__parse(match, strpool, NULL, &pattern);
if (ret == GIT_ENOTFOUND) {
git__free(match);
continue;
@ -160,6 +160,16 @@ static int pathspec_match_one(
path[match->length] == '/')
result = 0;
/* if we didn't match and this is a negative match, check for exact
* match of filename with leading '!'
*/
if (result == FNM_NOMATCH &&
(match->flags & GIT_ATTR_FNMATCH_NEGATIVE) != 0 &&
*path == '!' &&
ctxt->strncomp(path + 1, match->pattern, match->length) == 0 &&
(!path[match->length + 1] || path[match->length + 1] == '/'))
return 1;
if (result == 0)
return (match->flags & GIT_ATTR_FNMATCH_NEGATIVE) ? 0 : 1;
return -1;

8
tests-clar/attr/file.c
View File

@ -49,7 +49,6 @@ void test_attr_file__match_variants(void)
cl_assert(rule);
cl_assert_equal_s("pat0", rule->match.pattern);
cl_assert(rule->match.length == strlen("pat0"));
cl_assert(rule->match.flags == 0);
cl_assert(rule->assigns.length == 1);
assign = get_assign(rule,0);
cl_assert_equal_s("attr0", assign->name);
@ -59,16 +58,16 @@ void test_attr_file__match_variants(void)
rule = get_rule(1);
cl_assert_equal_s("pat1", rule->match.pattern);
cl_assert(rule->match.length == strlen("pat1"));
cl_assert(rule->match.flags == GIT_ATTR_FNMATCH_NEGATIVE);
cl_assert((rule->match.flags & GIT_ATTR_FNMATCH_NEGATIVE) != 0);
rule = get_rule(2);
cl_assert_equal_s("pat2", rule->match.pattern);
cl_assert(rule->match.length == strlen("pat2"));
cl_assert(rule->match.flags == GIT_ATTR_FNMATCH_DIRECTORY);
cl_assert((rule->match.flags & GIT_ATTR_FNMATCH_DIRECTORY) != 0);
rule = get_rule(3);
cl_assert_equal_s("pat3dir/pat3file", rule->match.pattern);
cl_assert(rule->match.flags == GIT_ATTR_FNMATCH_FULLPATH);
cl_assert((rule->match.flags & GIT_ATTR_FNMATCH_FULLPATH) != 0);
rule = get_rule(4);
cl_assert_equal_s("pat4.*", rule->match.pattern);
@ -89,7 +88,6 @@ void test_attr_file__match_variants(void)
rule = get_rule(8);
cl_assert_equal_s("pat8 with spaces", rule->match.pattern);
cl_assert(rule->match.length == strlen("pat8 with spaces"));
cl_assert(rule->match.flags == 0);
rule = get_rule(9);
cl_assert_equal_s("pat9", rule->match.pattern);