Make "ce_match_path()" a generic helper function

... and make git-diff-files use it too.  This all _should_ make the
diffcore-pathspec.c phase unnecessary, since the diff'ers now all do the
path matching early interally.

diff --git a/cache.h b/cache.h
index 36cb4ae1f51678b088b7340aa470e029d5a47afe..35e0ad7e0e0d6b58e0316ae52214509c99fdc89a 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -148,6 +148,7 @@ extern int remove_cache_entry_at(int pos);
 extern int remove_file_from_cache(char *path);
 extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
 extern int ce_match_stat(struct cache_entry *ce, struct stat *st);
+extern int ce_path_match(const struct cache_entry *ce, const char **pathspec);
 extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, const char *type);
 extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
 

diff --git a/diff-cache.c b/diff-cache.c
index 37c6eb5804ec7a454b0df83809e0208bcbd1b766..e6373b3484d1102274f85a8711a69b3af0d3f426 100644 (file)
--- a/diff-cache.c
+++ b/diff-cache.c
@@ -87,28 +87,6 @@ static int show_modified(struct cache_entry *old,
        return 0;
 }
 
-static int ce_path_match(const struct cache_entry *ce, const char **pathspec)
-{
-       const char *match, *name;
-       int len;
-
-       if (!pathspec)
-               return 1;
-
-       len = ce_namelen(ce);
-       name = ce->name;
-       while ((match = *pathspec++) != NULL) {
-               int matchlen = strlen(match);
-               if (matchlen > len)
-                       continue;
-               if (memcmp(name, match, matchlen))
-                       continue;
-               if (name[matchlen] == '/' || !name[matchlen])
-                       return 1;
-       }
-       return 0;
-}
-
 static int diff_cache(struct cache_entry **ac, int entries, const char **pathspec)
 {
        while (entries) {

diff --git a/diff-files.c b/diff-files.c
index ebaf235c52f570c3bbe90bbfd4ad7d9e805f476f..4e7d9673ce95cb0de71bdca1d73ec017781039ec 100644 (file)
--- a/diff-files.c
+++ b/diff-files.c
@@ -43,6 +43,7 @@ static void show_modified(int oldmode, int mode,
 int main(int argc, const char **argv)
 {
        static const unsigned char null_sha1[20] = { 0, };
+       const char **pathspec;
        int entries = read_cache();
        int i;
 
@@ -95,6 +96,9 @@ int main(int argc, const char **argv)
                argv++; argc--;
        }
 
+       /* Do we have a pathspec? */
+       pathspec = (argc > 1) ? argv + 1 : NULL;
+
        if (find_copies_harder && detect_rename != DIFF_DETECT_COPY)
                usage(diff_files_usage);
 
@@ -114,6 +118,9 @@ int main(int argc, const char **argv)
                struct cache_entry *ce = active_cache[i];
                int changed;
 
+               if (!ce_path_match(ce, pathspec))
+                       continue;
+
                if (ce_stage(ce)) {
                        show_unmerge(ce->name);
                        while (i < entries &&
@@ -141,7 +148,7 @@ int main(int argc, const char **argv)
                              ce->sha1, (changed ? null_sha1 : ce->sha1),
                              ce->name);
        }
-       diffcore_std((1 < argc) ? argv + 1 : NULL,
+       diffcore_std(pathspec, 
                     detect_rename, diff_score_opt,
                     pickaxe, pickaxe_opts,
                     diff_break_opt,

diff --git a/read-cache.c b/read-cache.c
index 5a61bf752bdc15f311215f91ea923f5422e8ad5c..f448ab17e279d2fb4e2cfa91cfc61be6f91128db 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -171,6 +171,30 @@ int ce_same_name(struct cache_entry *a, struct cache_entry *b)
        return ce_namelen(b) == len && !memcmp(a->name, b->name, len);
 }
 
+int ce_path_match(const struct cache_entry *ce, const char **pathspec)
+{
+       const char *match, *name;
+       int len;
+
+       if (!pathspec)
+               return 1;
+
+       len = ce_namelen(ce);
+       name = ce->name;
+       while ((match = *pathspec++) != NULL) {
+               int matchlen = strlen(match);
+               if (matchlen > len)
+                       continue;
+               if (memcmp(name, match, matchlen))
+                       continue;
+               if (matchlen && name[matchlen-1] == '/')
+                       return 1;
+               if (name[matchlen] == '/' || !name[matchlen])
+                       return 1;
+       }
+       return 0;
+}
+
 /*
  * Do we have another file that has the beginning components being a
  * proper superset of the name we're trying to add?