Merge pull request libgit2#5110 from pks-t/pks/wildmatch

Replace fnmatch with wildmatch

Author: ethomson

COPYING

@@ -991,3 +991,31 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
+
+----------------------------------------------------------------------
+
+The bundled wildmatch code is licensed under the BSD license:
+
+Copyright Rich Salz.
+All rights reserved.
+
+Redistribution and use in any form are permitted provided that the
+following restrictions are are met:
+
+1.  Source distributions must retain this entire copyright notice
+    and comment.
+2.  Binary distributions must include the acknowledgement ``This
+    product includes software developed by Rich Salz'' in the
+    documentation or other materials provided with the
+    distribution.  This must not be represented as an endorsement
+   or promotion without specific prior written permission.
+3.  The origin of this software must not be misrepresented, either
+    by explicit claim or by omission.  Credits must appear in the
+    source and documentation.
+4.  Altered versions must be plainly marked as such in the source
+    and documentation and must not be misrepresented as being the
+    original software.
+
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

src/attr_file.c

@@ -15,6 +15,7 @@
 #include "git2/tree.h"
 #include "blob.h"
 #include "index.h"
+#include "wildmatch.h"
 #include <ctype.h>
 
 static void attr_file_free(git_attr_file *file)
@@ -401,18 +402,13 @@ bool git_attr_fnmatch__match(
 	}
 
 	if (match->flags & GIT_ATTR_FNMATCH_ICASE)
-		flags |= FNM_CASEFOLD;
-	if (match->flags & GIT_ATTR_FNMATCH_LEADINGDIR)
-		flags |= FNM_LEADING_DIR;
+		flags |= WM_CASEFOLD;
 
 	if (match->flags & GIT_ATTR_FNMATCH_FULLPATH) {
 		filename = relpath;
-		flags |= FNM_PATHNAME;
+		flags |= WM_PATHNAME;
 	} else {
 		filename = path->basename;
-
-		if (path->is_dir)
-			flags |= FNM_LEADING_DIR;
 	}
 
 	if ((match->flags & GIT_ATTR_FNMATCH_DIRECTORY) && !path->is_dir) {
@@ -427,8 +423,6 @@ bool git_attr_fnmatch__match(
 			path->basename == relpath)
 			return false;
 
-		flags |= FNM_LEADING_DIR;
-
 		/* fail match if this is a file with same name as ignored folder */
 		samename = (match->flags & GIT_ATTR_FNMATCH_ICASE) ?
 			!strcasecmp(match->pattern, relpath) :
@@ -437,10 +431,10 @@ bool git_attr_fnmatch__match(
 		if (samename)
 			return false;
 
-		return (p_fnmatch(match->pattern, relpath, flags) != FNM_NOMATCH);
+		return (wildmatch(match->pattern, relpath, flags) == WM_MATCH);
 	}
 
-	return (p_fnmatch(match->pattern, filename, flags) != FNM_NOMATCH);
+	return (wildmatch(match->pattern, filename, flags) == WM_MATCH);
 }
 
 bool git_attr_rule__match(
@@ -658,8 +652,6 @@ int git_attr_fnmatch__parse(
 
 	if (*pattern == '!' && (spec->flags & GIT_ATTR_FNMATCH_ALLOWNEG) != 0) {
 		spec->flags = spec->flags | GIT_ATTR_FNMATCH_NEGATIVE;
-		if ((spec->flags & GIT_ATTR_FNMATCH_NOLEADINGDIR) == 0)
-			spec->flags |= GIT_ATTR_FNMATCH_LEADINGDIR;
 		pattern++;
 	}
 
@@ -715,14 +707,6 @@ int git_attr_fnmatch__parse(
 		if (--slash_count <= 0)
 			spec->flags = spec->flags & ~GIT_ATTR_FNMATCH_FULLPATH;
 	}
-	if ((spec->flags & GIT_ATTR_FNMATCH_NOLEADINGDIR) == 0 &&
-		spec->length >= 2 &&
-		pattern[spec->length - 1] == '*' &&
-		pattern[spec->length - 2] == '/') {
-		spec->length -= 2;
-		spec->flags = spec->flags | GIT_ATTR_FNMATCH_LEADINGDIR;
-		/* leave FULLPATH match on, however */
-	}
 
 	if (context) {
 		char *slash = strrchr(context, '/');

src/attr_file.h

@@ -32,12 +32,9 @@
 #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_LEADINGDIR (1U << 11)
-#define GIT_ATTR_FNMATCH_NOLEADINGDIR (1U << 12)
 
 #define GIT_ATTR_FNMATCH__INCOMING \
-	(GIT_ATTR_FNMATCH_ALLOWSPACE | GIT_ATTR_FNMATCH_ALLOWNEG | \
-	 GIT_ATTR_FNMATCH_ALLOWMACRO | GIT_ATTR_FNMATCH_NOLEADINGDIR)
+	(GIT_ATTR_FNMATCH_ALLOWSPACE | GIT_ATTR_FNMATCH_ALLOWNEG | GIT_ATTR_FNMATCH_ALLOWMACRO)
 
 typedef enum {
 	GIT_ATTR_FILE__IN_MEMORY   = 0,

src/config_file.c

@@ -18,6 +18,7 @@
 #include "array.h"
 #include "config_parse.h"
 #include "config_entries.h"
+#include "wildmatch.h"
 
 #include <ctype.h>
 #include <sys/types.h>
@@ -697,41 +698,41 @@ static int do_match_gitdir(
 	int *matches,
 	const git_repository *repo,
 	const char *cfg_file,
-	const char *value,
+	const char *condition,
 	bool case_insensitive)
 {
-	git_buf path = GIT_BUF_INIT;
-	int error, fnmatch_flags;
-
-	if (value[0] == '.' && git_path_is_dirsep(value[1])) {
-		git_path_dirname_r(&path, cfg_file);
-		git_buf_joinpath(&path, path.ptr, value + 2);
-	} else if (value[0] == '~' && git_path_is_dirsep(value[1]))
-		git_sysdir_expand_global_file(&path, value + 1);
-	else if (!git_path_is_absolute(value))
-		git_buf_joinpath(&path, "**", value);
+	git_buf pattern = GIT_BUF_INIT, gitdir = GIT_BUF_INIT;
+	int error;
+
+	if (condition[0] == '.' && git_path_is_dirsep(condition[1])) {
+		git_path_dirname_r(&pattern, cfg_file);
+		git_buf_joinpath(&pattern, pattern.ptr, condition + 2);
+	} else if (condition[0] == '~' && git_path_is_dirsep(condition[1]))
+		git_sysdir_expand_global_file(&pattern, condition + 1);
+	else if (!git_path_is_absolute(condition))
+		git_buf_joinpath(&pattern, "**", condition);
 	else
-		git_buf_sets(&path, value);
+		git_buf_sets(&pattern, condition);
 
-	if (git_buf_oom(&path)) {
+	if (git_path_is_dirsep(condition[strlen(condition) - 1]))
+		git_buf_puts(&pattern, "**");
+
+	if (git_buf_oom(&pattern)) {
 		error = -1;
 		goto out;
 	}
 
-	if (git_path_is_dirsep(value[strlen(value) - 1]))
-		git_buf_puts(&path, "**");
-
-	fnmatch_flags = FNM_PATHNAME|FNM_LEADING_DIR;
-	if (case_insensitive)
-		fnmatch_flags |= FNM_IGNORECASE;
-
-	if ((error = p_fnmatch(path.ptr, git_repository_path(repo), fnmatch_flags)) < 0)
+	if ((error = git_repository_item_path(&gitdir, repo, GIT_REPOSITORY_ITEM_GITDIR)) < 0)
 		goto out;
 
-	*matches = (error == 0);
+	if (git_path_is_dirsep(gitdir.ptr[gitdir.size - 1]))
+		git_buf_truncate(&gitdir, gitdir.size - 1);
 
+	*matches = wildmatch(pattern.ptr, gitdir.ptr,
+			     WM_PATHNAME | (case_insensitive ? WM_CASEFOLD : 0)) == WM_MATCH;
 out:
-	git_buf_dispose(&path);
+	git_buf_dispose(&pattern);
+	git_buf_dispose(&gitdir);
 	return error;
 }
 

src/describe.c

@@ -16,10 +16,11 @@
 #include "commit_list.h"
 #include "oidmap.h"
 #include "refs.h"
+#include "repository.h"
 #include "revwalk.h"
 #include "tag.h"
 #include "vector.h"
-#include "repository.h"
+#include "wildmatch.h"
 
 /* Ported from https://github.com/git/git/blob/89dde7882f71f846ccd0359756d27bebc31108de/builtin/describe.c */
 
@@ -214,7 +215,7 @@ static int get_name(const char *refname, void *payload)
 		return 0;
 
 	/* Accept only tags that match the pattern, if given */
-	if (data->opts->pattern && (!is_tag || p_fnmatch(data->opts->pattern,
+	if (data->opts->pattern && (!is_tag || wildmatch(data->opts->pattern,
 		refname + strlen(GIT_REFS_TAGS_DIR), 0)))
 				return 0;