index: improve constness for reading blob data

diff --git a/ref-filter.c b/ref-filter.c
index b6f1bb73ed374178173906b7078a1fca5a6f84d0..1a978405e6b97d1f57d75b867ddeae30f091ef19 100644 (file)
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1037,7 +1037,7 @@ static void populate_value(struct ref_array_item *ref)
 
                        head = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
                                                  sha1, NULL);
-                       if (!strcmp(ref->refname, head))
+                       if (head && !strcmp(ref->refname, head))
                                v->s = "*";
                        else
                                v->s = " ";
@@ -1251,8 +1251,14 @@ static int commit_contains(struct ref_filter *filter, struct commit *commit)
  * matches a pattern "refs/heads/mas") or a wildcard (e.g. the same ref
  * matches "refs/heads/mas*", too).
  */
-static int match_pattern(const char **patterns, const char *refname)
+static int match_pattern(const struct ref_filter *filter, const char *refname)
 {
+       const char **patterns = filter->name_patterns;
+       unsigned flags = 0;
+
+       if (filter->ignore_case)
+               flags |= WM_CASEFOLD;
+
        /*
         * When no '--format' option is given we need to skip the prefix
         * for matching refs of tags and branches.
@@ -1263,7 +1269,7 @@ static int match_pattern(const char **patterns, const char *refname)
               skip_prefix(refname, "refs/", &refname));
 
        for (; *patterns; patterns++) {
-               if (!wildmatch(*patterns, refname, 0, NULL))
+               if (!wildmatch(*patterns, refname, flags, NULL))
                        return 1;
        }
        return 0;
@@ -1275,9 +1281,15 @@ static int match_pattern(const char **patterns, const char *refname)
  * matches a pattern "refs/heads/" but not "refs/heads/m") or a
  * wildcard (e.g. the same ref matches "refs/heads/m*", too).
  */
-static int match_name_as_path(const char **pattern, const char *refname)
+static int match_name_as_path(const struct ref_filter *filter, const char *refname)
 {
+       const char **pattern = filter->name_patterns;
        int namelen = strlen(refname);
+       unsigned flags = WM_PATHNAME;
+
+       if (filter->ignore_case)
+               flags |= WM_CASEFOLD;
+
        for (; *pattern; pattern++) {
                const char *p = *pattern;
                int plen = strlen(p);
@@ -1300,8 +1312,8 @@ static int filter_pattern_match(struct ref_filter *filter, const char *refname)
        if (!*filter->name_patterns)
                return 1; /* No pattern always matches */
        if (filter->match_as_path)
-               return match_name_as_path(filter->name_patterns, refname);
-       return match_pattern(filter->name_patterns, refname);
+               return match_name_as_path(filter, refname);
+       return match_pattern(filter, refname);
 }
 
 /*
@@ -1556,18 +1568,20 @@ static int cmp_ref_sorting(struct ref_sorting *s, struct ref_array_item *a, stru
        struct atom_value *va, *vb;
        int cmp;
        cmp_type cmp_type = used_atom[s->atom].type;
+       int (*cmp_fn)(const char *, const char *);
 
        get_ref_atom_value(a, s->atom, &va);
        get_ref_atom_value(b, s->atom, &vb);
+       cmp_fn = s->ignore_case ? strcasecmp : strcmp;
        if (s->version)
                cmp = versioncmp(va->s, vb->s);
        else if (cmp_type == FIELD_STR)
-               cmp = strcmp(va->s, vb->s);
+               cmp = cmp_fn(va->s, vb->s);
        else {
                if (va->ul < vb->ul)
                        cmp = -1;
                else if (va->ul == vb->ul)
-                       cmp = strcmp(a->refname, b->refname);
+                       cmp = cmp_fn(a->refname, b->refname);
                else
                        cmp = 1;
        }