diff format documentation: describe raw combined diff format
[gitweb.git] / builtin-push.c
index 5f4d7d34d35da35f0c843962f1ca1ae61a575456..70b1168fa677fc889543e87b2a3f964b175375c6 100644 (file)
@@ -32,7 +32,7 @@ static int expand_one_ref(const char *ref, const unsigned char *sha1, int flag,
        /* Ignore the "refs/" at the beginning of the refname */
        ref += 5;
 
-       if (!strncmp(ref, "tags/", 5))
+       if (!prefixcmp(ref, "tags/"))
                add_refspec(xstrdup(ref));
        return 0;
 }
@@ -54,38 +54,84 @@ static void expand_refspecs(void)
        for_each_ref(expand_one_ref, NULL);
 }
 
+struct wildcard_cb {
+       const char *from_prefix;
+       int from_prefix_len;
+       const char *to_prefix;
+       int to_prefix_len;
+       int force;
+};
+
+static int expand_wildcard_ref(const char *ref, const unsigned char *sha1, int flag, void *cb_data)
+{
+       struct wildcard_cb *cb = cb_data;
+       int len = strlen(ref);
+       char *expanded, *newref;
+
+       if (len < cb->from_prefix_len ||
+           memcmp(cb->from_prefix, ref, cb->from_prefix_len))
+               return 0;
+       expanded = xmalloc(len * 2 + cb->force +
+                          (cb->to_prefix_len - cb->from_prefix_len) + 2);
+       newref = expanded + cb->force;
+       if (cb->force)
+               expanded[0] = '+';
+       memcpy(newref, ref, len);
+       newref[len] = ':';
+       memcpy(newref + len + 1, cb->to_prefix, cb->to_prefix_len);
+       strcpy(newref + len + 1 + cb->to_prefix_len,
+              ref + cb->from_prefix_len);
+       add_refspec(expanded);
+       return 0;
+}
+
+static int wildcard_ref(const char *ref)
+{
+       int len;
+       const char *colon;
+       struct wildcard_cb cb;
+
+       memset(&cb, 0, sizeof(cb));
+       if (ref[0] == '+') {
+               cb.force = 1;
+               ref++;
+       }
+       len = strlen(ref);
+       colon = strchr(ref, ':');
+       if (! (colon && ref < colon &&
+              colon[-2] == '/' && colon[-1] == '*' &&
+              /* "<mine>/<asterisk>:<yours>/<asterisk>" is at least 7 bytes */
+              7 <= len &&
+              ref[len-2] == '/' && ref[len-1] == '*') )
+               return 0 ;
+       cb.from_prefix = ref;
+       cb.from_prefix_len = colon - ref - 1;
+       cb.to_prefix = colon + 1;
+       cb.to_prefix_len = len - (colon - ref) - 2;
+       for_each_ref(expand_wildcard_ref, &cb);
+       return 1;
+}
+
 static void set_refspecs(const char **refs, int nr)
 {
        if (nr) {
-               int pass;
-               for (pass = 0; pass < 2; pass++) {
-                       /* pass 0 counts and allocates, pass 1 fills */
-                       int i, cnt;
-                       for (i = cnt = 0; i < nr; i++) {
-                               if (!strcmp("tag", refs[i])) {
-                                       int len;
-                                       char *tag;
-                                       if (nr <= ++i)
-                                               die("tag <tag> shorthand without <tag>");
-                                       if (pass) {
-                                               len = strlen(refs[i]) + 11;
-                                               tag = xmalloc(len);
-                                               strcpy(tag, "refs/tags/");
-                                               strcat(tag, refs[i]);
-                                               refspec[cnt] = tag;
-                                       }
-                                       cnt++;
-                                       continue;
-                               }
-                               if (pass)
-                                       refspec[cnt] = refs[i];
-                               cnt++;
-                       }
-                       if (!pass) {
-                               size_t bytes = cnt * sizeof(char *);
-                               refspec_nr = cnt;
-                               refspec = xrealloc(refspec, bytes);
+               int i;
+               for (i = 0; i < nr; i++) {
+                       const char *ref = refs[i];
+                       if (!strcmp("tag", ref)) {
+                               char *tag;
+                               int len;
+                               if (nr <= ++i)
+                                       die("tag shorthand without <tag>");
+                               len = strlen(refs[i]) + 11;
+                               tag = xmalloc(len);
+                               strcpy(tag, "refs/tags/");
+                               strcat(tag, refs[i]);
+                               ref = tag;
                        }
+                       else if (wildcard_ref(ref))
+                               continue;
+                       add_refspec(ref);
                }
        }
        expand_refspecs();
@@ -103,10 +149,10 @@ static int get_remotes_uri(const char *repo, const char *uri[MAX_URI])
                int is_refspec;
                char *s, *p;
 
-               if (!strncmp("URL:", buffer, 4)) {
+               if (!prefixcmp(buffer, "URL:")) {
                        is_refspec = 0;
                        s = buffer + 4;
-               } else if (!strncmp("Push:", buffer, 5)) {
+               } else if (!prefixcmp(buffer, "Push:")) {
                        is_refspec = 1;
                        s = buffer + 5;
                } else
@@ -129,8 +175,10 @@ static int get_remotes_uri(const char *repo, const char *uri[MAX_URI])
                        else
                                error("more than %d URL's specified, ignoring the rest", MAX_URI);
                }
-               else if (is_refspec && !has_explicit_refspec)
-                       add_refspec(xstrdup(s));
+               else if (is_refspec && !has_explicit_refspec) {
+                       if (!wildcard_ref(s))
+                               add_refspec(xstrdup(s));
+               }
        }
        fclose(f);
        if (!n)
@@ -147,7 +195,7 @@ static int config_get_receivepack;
 
 static int get_remote_config(const char* key, const char* value)
 {
-       if (!strncmp(key, "remote.", 7) &&
+       if (!prefixcmp(key, "remote.") &&
            !strncmp(key + 7, config_repo, config_repo_len)) {
                if (!strcmp(key + 7 + config_repo_len, ".url")) {
                        if (config_current_uri < MAX_URI)
@@ -156,8 +204,10 @@ static int get_remote_config(const char* key, const char* value)
                                error("more than %d URL's specified, ignoring the rest", MAX_URI);
                }
                else if (config_get_refspecs &&
-                        !strcmp(key + 7 + config_repo_len, ".push"))
-                       add_refspec(xstrdup(value));
+                        !strcmp(key + 7 + config_repo_len, ".push")) {
+                       if (!wildcard_ref(value))
+                               add_refspec(xstrdup(value));
+               }
                else if (config_get_receivepack &&
                         !strcmp(key + 7 + config_repo_len, ".receivepack")) {
                        if (!receivepack) {
@@ -273,10 +323,10 @@ static int do_push(const char *repo)
                int dest_refspec_nr = refspec_nr;
                const char **dest_refspec = refspec;
                const char *dest = uri[i];
-               const char *sender = "git-send-pack";
-               if (!strncmp(dest, "http://", 7) ||
-                   !strncmp(dest, "https://", 8))
-                       sender = "git-http-push";
+               const char *sender = "send-pack";
+               if (!prefixcmp(dest, "http://") ||
+                   !prefixcmp(dest, "https://"))
+                       sender = "http-push";
                else if (thin)
                        argv[dest_argc++] = "--thin";
                argv[0] = sender;
@@ -286,7 +336,7 @@ static int do_push(const char *repo)
                argv[dest_argc] = NULL;
                if (verbose)
                        fprintf(stderr, "Pushing to %s\n", dest);
-               err = run_command_v(argv);
+               err = run_command_v_opt(argv, RUN_GIT_CMD);
                if (!err)
                        continue;
                switch (err) {
@@ -323,7 +373,7 @@ int cmd_push(int argc, const char **argv, const char *prefix)
                        verbose=1;
                        continue;
                }
-               if (!strncmp(arg, "--repo=", 7)) {
+               if (!prefixcmp(arg, "--repo=")) {
                        repo = arg+7;
                        continue;
                }
@@ -347,11 +397,11 @@ int cmd_push(int argc, const char **argv, const char *prefix)
                        thin = 0;
                        continue;
                }
-               if (!strncmp(arg, "--receive-pack=", 15)) {
+               if (!prefixcmp(arg, "--receive-pack=")) {
                        receivepack = arg;
                        continue;
                }
-               if (!strncmp(arg, "--exec=", 7)) {
+               if (!prefixcmp(arg, "--exec=")) {
                        receivepack = arg;
                        continue;
                }