commit: allow associating auxiliary info on-demand

diff --git a/userdiff.c b/userdiff.c
index ed958ef6b8b912436ad0145fe650adea083412e3..ea43a0306f1a017f719e0d6b7c1de8b063760184 100644 (file)
--- a/userdiff.c
+++ b/userdiff.c
@@ -184,35 +184,6 @@ static struct userdiff_driver *userdiff_find_by_namelen(const char *k, int len)
        return NULL;
 }
 
-static struct userdiff_driver *parse_driver(const char *var,
-               const char *value, const char *type)
-{
-       struct userdiff_driver *drv;
-       const char *dot;
-       const char *name;
-       int namelen;
-
-       if (prefixcmp(var, "diff."))
-               return NULL;
-       dot = strrchr(var, '.');
-       if (dot == var + 4)
-               return NULL;
-       if (strcmp(type, dot+1))
-               return NULL;
-
-       name = var + 5;
-       namelen = dot - name;
-       drv = userdiff_find_by_namelen(name, namelen);
-       if (!drv) {
-               ALLOC_GROW(drivers, ndrivers+1, drivers_alloc);
-               drv = &drivers[ndrivers++];
-               memset(drv, 0, sizeof(*drv));
-               drv->name = xmemdupz(name, namelen);
-               drv->binary = -1;
-       }
-       return drv;
-}
-
 static int parse_funcname(struct userdiff_funcname *f, const char *k,
                const char *v, int cflags)
 {
@@ -240,20 +211,34 @@ static int parse_bool(int *b, const char *k, const char *v)
 int userdiff_config(const char *k, const char *v)
 {
        struct userdiff_driver *drv;
+       const char *name, *type;
+       int namelen;
+
+       if (parse_config_key(k, "diff", &name, &namelen, &type) || !name)
+               return 0;
+
+       drv = userdiff_find_by_namelen(name, namelen);
+       if (!drv) {
+               ALLOC_GROW(drivers, ndrivers+1, drivers_alloc);
+               drv = &drivers[ndrivers++];
+               memset(drv, 0, sizeof(*drv));
+               drv->name = xmemdupz(name, namelen);
+               drv->binary = -1;
+       }
 
-       if ((drv = parse_driver(k, v, "funcname")))
+       if (!strcmp(type, "funcname"))
                return parse_funcname(&drv->funcname, k, v, 0);
-       if ((drv = parse_driver(k, v, "xfuncname")))
+       if (!strcmp(type, "xfuncname"))
                return parse_funcname(&drv->funcname, k, v, REG_EXTENDED);
-       if ((drv = parse_driver(k, v, "binary")))
+       if (!strcmp(type, "binary"))
                return parse_tristate(&drv->binary, k, v);
-       if ((drv = parse_driver(k, v, "command")))
+       if (!strcmp(type, "command"))
                return git_config_string(&drv->external, k, v);
-       if ((drv = parse_driver(k, v, "textconv")))
+       if (!strcmp(type, "textconv"))
                return git_config_string(&drv->textconv, k, v);
-       if ((drv = parse_driver(k, v, "cachetextconv")))
+       if (!strcmp(type, "cachetextconv"))
                return parse_bool(&drv->textconv_want_cache, k, v);
-       if ((drv = parse_driver(k, v, "wordregex")))
+       if (!strcmp(type, "wordregex"))
                return git_config_string(&drv->word_regex, k, v);
 
        return 0;