Case insensitivity support for .gitignore via core.ignorecase

diff --git a/dir.c b/dir.c
index 151ea670d961d39394990f122469557b6f217de3..be21c201ab584401d69980ade8759e6f786b5ed7 100644 (file)
--- a/dir.c
+++ b/dir.c
@@ -18,6 +18,22 @@ static int read_directory_recursive(struct dir_struct *dir, const char *path, in
        int check_only, const struct path_simplify *simplify);
 static int get_dtype(struct dirent *de, const char *path, int len);
 
+/* helper string functions with support for the ignore_case flag */
+int strcmp_icase(const char *a, const char *b)
+{
+       return ignore_case ? strcasecmp(a, b) : strcmp(a, b);
+}
+
+int strncmp_icase(const char *a, const char *b, size_t count)
+{
+       return ignore_case ? strncasecmp(a, b, count) : strncmp(a, b, count);
+}
+
+int fnmatch_icase(const char *pattern, const char *string, int flags)
+{
+       return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0));
+}
+
 static int common_prefix(const char **pathspec)
 {
        const char *path, *slash, *next;
@@ -374,14 +390,14 @@ int excluded_from_list(const char *pathname,
                        if (x->flags & EXC_FLAG_NODIR) {
                                /* match basename */
                                if (x->flags & EXC_FLAG_NOWILDCARD) {
-                                       if (!strcmp(exclude, basename))
+                                       if (!strcmp_icase(exclude, basename))
                                                return to_exclude;
                                } else if (x->flags & EXC_FLAG_ENDSWITH) {
                                        if (x->patternlen - 1 <= pathlen &&
-                                           !strcmp(exclude + 1, pathname + pathlen - x->patternlen + 1))
+                                           !strcmp_icase(exclude + 1, pathname + pathlen - x->patternlen + 1))
                                                return to_exclude;
                                } else {
-                                       if (fnmatch(exclude, basename, 0) == 0)
+                                       if (fnmatch_icase(exclude, basename, 0) == 0)
                                                return to_exclude;
                                }
                        }
@@ -396,14 +412,14 @@ int excluded_from_list(const char *pathname,
 
                                if (pathlen < baselen ||
                                    (baselen && pathname[baselen-1] != '/') ||
-                                   strncmp(pathname, x->base, baselen))
+                                   strncmp_icase(pathname, x->base, baselen))
                                    continue;
 
                                if (x->flags & EXC_FLAG_NOWILDCARD) {
-                                       if (!strcmp(exclude, pathname + baselen))
+                                       if (!strcmp_icase(exclude, pathname + baselen))
                                                return to_exclude;
                                } else {
-                                       if (fnmatch(exclude, pathname+baselen,
+                                       if (fnmatch_icase(exclude, pathname+baselen,
                                                    FNM_PATHNAME) == 0)
                                            return to_exclude;
                                }
@@ -453,7 +469,7 @@ static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathna
        return dir->entries[dir->nr++] = dir_entry_new(pathname, len);
 }
 
-static struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len)
+struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len)
 {
        if (!cache_name_is_other(pathname, len))
                return NULL;