git-svn: Send deltas during commits

diff --git a/remote.c b/remote.c
index 0d6020beb8ca9159df09cc947d920e4af8698eca..3ef09a44a14622bb175d2a18bc46c946cde9a8a1 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -427,6 +427,48 @@ static void read_config(void)
        alias_all_urls();
 }
 
+/*
+ * We need to make sure the tracking branches are well formed, but a
+ * wildcard refspec in "struct refspec" must have a trailing slash. We
+ * temporarily drop the trailing '/' while calling check_ref_format(),
+ * and put it back.  The caller knows that a CHECK_REF_FORMAT_ONELEVEL
+ * error return is Ok for a wildcard refspec.
+ */
+static int verify_refname(char *name, int is_glob)
+{
+       int result, len = -1;
+
+       if (is_glob) {
+               len = strlen(name);
+               assert(name[len - 1] == '/');
+               name[len - 1] = '\0';
+       }
+       result = check_ref_format(name);
+       if (is_glob)
+               name[len - 1] = '/';
+       return result;
+}
+
+/*
+ * This function frees a refspec array.
+ * Warning: code paths should be checked to ensure that the src
+ *          and dst pointers are always freeable pointers as well
+ *          as the refspec pointer itself.
+ */
+void free_refspecs(struct refspec *refspec, int nr_refspec)
+{
+       int i;
+
+       if (!refspec)
+               return;
+
+       for (i = 0; i < nr_refspec; i++) {
+               free(refspec[i].src);
+               free(refspec[i].dst);
+       }
+       free(refspec);
+}
+
 static struct refspec *parse_refspec_internal(int nr_refspec, const char **refspec, int fetch, int verify)
 {
        int i;
@@ -434,11 +476,11 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
        struct refspec *rs = xcalloc(sizeof(*rs), nr_refspec);
 
        for (i = 0; i < nr_refspec; i++) {
-               size_t llen, rlen;
+               size_t llen;
                int is_glob;
                const char *lhs, *rhs;
 
-               llen = rlen = is_glob = 0;
+               llen = is_glob = 0;
 
                lhs = refspec[i];
                if (*lhs == '+') {
@@ -458,12 +500,9 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
                }
 
                if (rhs) {
-                       rhs++;
-                       rlen = strlen(rhs);
+                       size_t rlen = strlen(++rhs);
                        is_glob = (2 <= rlen && !strcmp(rhs + rlen - 2, "/*"));
-                       if (is_glob)
-                               rlen -= 2;
-                       rs[i].dst = xstrndup(rhs, rlen);
+                       rs[i].dst = xstrndup(rhs, rlen - is_glob);
                }
 
                llen = (rhs ? (rhs - lhs - 1) : strlen(lhs));
@@ -471,7 +510,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
                        if ((rhs && !is_glob) || (!rhs && fetch))
                                goto invalid;
                        is_glob = 1;
-                       llen -= 2;
+                       llen--;
                } else if (rhs && is_glob) {
                        goto invalid;
                }
@@ -488,7 +527,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
                        if (!*rs[i].src)
                                ; /* empty is ok */
                        else {
-                               st = check_ref_format(rs[i].src);
+                               st = verify_refname(rs[i].src, is_glob);
                                if (st && st != CHECK_REF_FORMAT_ONELEVEL)
                                        goto invalid;
                        }
@@ -503,7 +542,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
                        } else if (!*rs[i].dst) {
                                ; /* ok */
                        } else {
-                               st = check_ref_format(rs[i].dst);
+                               st = verify_refname(rs[i].dst, is_glob);
                                if (st && st != CHECK_REF_FORMAT_ONELEVEL)
                                        goto invalid;
                        }
@@ -518,7 +557,7 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
                        if (!*rs[i].src)
                                ; /* empty is ok */
                        else if (is_glob) {
-                               st = check_ref_format(rs[i].src);
+                               st = verify_refname(rs[i].src, is_glob);
                                if (st && st != CHECK_REF_FORMAT_ONELEVEL)
                                        goto invalid;
                        }
@@ -532,13 +571,13 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
                         * - otherwise it must be a valid looking ref.
                         */
                        if (!rs[i].dst) {
-                               st = check_ref_format(rs[i].src);
+                               st = verify_refname(rs[i].src, is_glob);
                                if (st && st != CHECK_REF_FORMAT_ONELEVEL)
                                        goto invalid;
                        } else if (!*rs[i].dst) {
                                goto invalid;
                        } else {
-                               st = check_ref_format(rs[i].dst);
+                               st = verify_refname(rs[i].dst, is_glob);
                                if (st && st != CHECK_REF_FORMAT_ONELEVEL)
                                        goto invalid;
                        }
@@ -548,7 +587,12 @@ static struct refspec *parse_refspec_internal(int nr_refspec, const char **refsp
 
  invalid:
        if (verify) {
-               free(rs);
+               /*
+                * nr_refspec must be greater than zero and i must be valid
+                * since it is only possible to reach this point from within
+                * the for loop above.
+                */
+               free_refspecs(rs, i+1);
                return NULL;
        }
        die("Invalid refspec '%s'", refspec[i]);
@@ -560,8 +604,7 @@ int valid_fetch_refspec(const char *fetch_refspec_str)
        struct refspec *refspec;
 
        refspec = parse_refspec_internal(1, fetch_refspec, 1, 1);
-       if (refspec)
-               free(refspec);
+       free_refspecs(refspec, 1);
        return !!refspec;
 }
 
@@ -687,8 +730,7 @@ int remote_find_tracking(struct remote *remote, struct refspec *refspec)
                if (!fetch->dst)
                        continue;
                if (fetch->pattern) {
-                       if (!prefixcmp(needle, key) &&
-                           needle[strlen(key)] == '/') {
+                       if (!prefixcmp(needle, key)) {
                                *result = xmalloc(strlen(value) +
                                                  strlen(needle) -
                                                  strlen(key) + 1);
@@ -966,9 +1008,7 @@ static const struct refspec *check_pattern_match(const struct refspec *rs,
                        continue;
                }
 
-               if (rs[i].pattern &&
-                   !prefixcmp(src->name, rs[i].src) &&
-                   src->name[strlen(rs[i].src)] == '/')
+               if (rs[i].pattern && !prefixcmp(src->name, rs[i].src))
                        return rs + i;
        }
        if (matching_refs != -1)