tree_entry_interesting(): give meaningful names to return values
[git/git.git] / tree-walk.c
index cc2f14a..4a03e9b 100644 (file)
@@ -577,27 +577,23 @@ static int match_dir_prefix(const char *base,
  *
  * Pre-condition: either baselen == base_offset (i.e. empty path)
  * or base[baselen-1] == '/' (i.e. with trailing slash).
- *
- * Return:
- *  - 2 for "yes, and all subsequent entries will be"
- *  - 1 for yes
- *  - zero for no
- *  - negative for "no, and no subsequent entries will be either"
  */
-int tree_entry_interesting(const struct name_entry *entry,
-                          struct strbuf *base, int base_offset,
-                          const struct pathspec *ps)
+enum interesting tree_entry_interesting(const struct name_entry *entry,
+                                       struct strbuf *base, int base_offset,
+                                       const struct pathspec *ps)
 {
        int i;
        int pathlen, baselen = base->len - base_offset;
-       int never_interesting = ps->has_wildcard ? 0 : -1;
+       int never_interesting = ps->has_wildcard ?
+               entry_not_interesting : all_entries_not_interesting;
 
        if (!ps->nr) {
                if (!ps->recursive || ps->max_depth == -1)
-                       return 2;
-               return !!within_depth(base->buf + base_offset, baselen,
-                                     !!S_ISDIR(entry->mode),
-                                     ps->max_depth);
+                       return all_entries_interesting;
+               return within_depth(base->buf + base_offset, baselen,
+                                   !!S_ISDIR(entry->mode),
+                                   ps->max_depth) ?
+                       entry_interesting : entry_not_interesting;
        }
 
        pathlen = tree_entry_len(entry);
@@ -614,12 +610,13 @@ int tree_entry_interesting(const struct name_entry *entry,
                                goto match_wildcards;
 
                        if (!ps->recursive || ps->max_depth == -1)
-                               return 2;
+                               return all_entries_interesting;
 
-                       return !!within_depth(base_str + matchlen + 1,
-                                             baselen - matchlen - 1,
-                                             !!S_ISDIR(entry->mode),
-                                             ps->max_depth);
+                       return within_depth(base_str + matchlen + 1,
+                                           baselen - matchlen - 1,
+                                           !!S_ISDIR(entry->mode),
+                                           ps->max_depth) ?
+                               entry_interesting : entry_not_interesting;
                }
 
                /* Either there must be no base, or the base must match. */
@@ -627,18 +624,18 @@ int tree_entry_interesting(const struct name_entry *entry,
                        if (match_entry(entry, pathlen,
                                        match + baselen, matchlen - baselen,
                                        &never_interesting))
-                               return 1;
+                               return entry_interesting;
 
                        if (ps->items[i].use_wildcard) {
                                if (!fnmatch(match + baselen, entry->path, 0))
-                                       return 1;
+                                       return entry_interesting;
 
                                /*
                                 * Match all directories. We'll try to
                                 * match files later on.
                                 */
                                if (ps->recursive && S_ISDIR(entry->mode))
-                                       return 1;
+                                       return entry_interesting;
                        }
 
                        continue;
@@ -657,7 +654,7 @@ match_wildcards:
 
                if (!fnmatch(match, base->buf + base_offset, 0)) {
                        strbuf_setlen(base, base_offset + baselen);
-                       return 1;
+                       return entry_interesting;
                }
                strbuf_setlen(base, base_offset + baselen);
 
@@ -666,7 +663,7 @@ match_wildcards:
                 * later on.
                 */
                if (ps->recursive && S_ISDIR(entry->mode))
-                       return 1;
+                       return entry_interesting;
        }
        return never_interesting; /* No matches */
 }