Smart-http: check if repository is OK to export before serving it

diff --git a/branch.c b/branch.c
index 1f00e44deb28afe74ae4f0b85b23039476032fe5..05ef3f5c9ce6e1b55a7eb483a197fe9fd6e5437d 100644 (file)
--- a/branch.c
+++ b/branch.c
@@ -32,21 +32,59 @@ static int find_tracked_branch(struct remote *remote, void *priv)
        return 0;
 }
 
-static int should_setup_rebase(const struct tracking *tracking)
+static int should_setup_rebase(const char *origin)
 {
        switch (autorebase) {
        case AUTOREBASE_NEVER:
                return 0;
        case AUTOREBASE_LOCAL:
-               return tracking->remote == NULL;
+               return origin == NULL;
        case AUTOREBASE_REMOTE:
-               return tracking->remote != NULL;
+               return origin != NULL;
        case AUTOREBASE_ALWAYS:
                return 1;
        }
        return 0;
 }
 
+void install_branch_config(int flag, const char *local, const char *origin, const char *remote)
+{
+       struct strbuf key = STRBUF_INIT;
+       int rebasing = should_setup_rebase(origin);
+
+       strbuf_addf(&key, "branch.%s.remote", local);
+       git_config_set(key.buf, origin ? origin : ".");
+
+       strbuf_reset(&key);
+       strbuf_addf(&key, "branch.%s.merge", local);
+       git_config_set(key.buf, remote);
+
+       if (rebasing) {
+               strbuf_reset(&key);
+               strbuf_addf(&key, "branch.%s.rebase", local);
+               git_config_set(key.buf, "true");
+       }
+
+       if (flag & BRANCH_CONFIG_VERBOSE) {
+               strbuf_reset(&key);
+
+               strbuf_addstr(&key, origin ? "remote" : "local");
+
+               /* Are we tracking a proper "branch"? */
+               if (!prefixcmp(remote, "refs/heads/")) {
+                       strbuf_addf(&key, " branch %s", remote + 11);
+                       if (origin)
+                               strbuf_addf(&key, " from %s", origin);
+               }
+               else
+                       strbuf_addf(&key, " ref %s", remote);
+               printf("Branch %s set up to track %s%s.\n",
+                      local, key.buf,
+                      rebasing ? " by rebasing" : "");
+       }
+       strbuf_release(&key);
+}
+
 /*
  * This is called when new_ref is branched off of orig_ref, and tries
  * to infer the settings for branch.<new_ref>.{remote,merge} from the
@@ -55,7 +93,6 @@ static int should_setup_rebase(const struct tracking *tracking)
 static int setup_tracking(const char *new_ref, const char *orig_ref,
                           enum branch_track track)
 {
-       char key[1024];
        struct tracking tracking;
 
        if (strlen(new_ref) > 1024 - 7 - 7 - 1)
@@ -80,19 +117,10 @@ static int setup_tracking(const char *new_ref, const char *orig_ref,
                return error("Not tracking: ambiguous information for ref %s",
                                orig_ref);
 
-       sprintf(key, "branch.%s.remote", new_ref);
-       git_config_set(key, tracking.remote ?  tracking.remote : ".");
-       sprintf(key, "branch.%s.merge", new_ref);
-       git_config_set(key, tracking.src ? tracking.src : orig_ref);
-       printf("Branch %s set up to track %s branch %s.\n", new_ref,
-               tracking.remote ? "remote" : "local", orig_ref);
-       if (should_setup_rebase(&tracking)) {
-               sprintf(key, "branch.%s.rebase", new_ref);
-               git_config_set(key, "true");
-               printf("This branch will rebase on pull.\n");
-       }
-       free(tracking.src);
+       install_branch_config(BRANCH_CONFIG_VERBOSE, new_ref, tracking.remote,
+                             tracking.src ? tracking.src : orig_ref);
 
+       free(tracking.src);
        return 0;
 }
 
@@ -106,16 +134,8 @@ void create_branch(const char *head,
        char *real_ref, msg[PATH_MAX + 20];
        struct strbuf ref = STRBUF_INIT;
        int forcing = 0;
-       int len;
-
-       len = strlen(name);
-       if (interpret_nth_last_branch(name, &ref) != len) {
-               strbuf_reset(&ref);
-               strbuf_add(&ref, name, len);
-       }
-       strbuf_splice(&ref, 0, 0, "refs/heads/", 11);
 
-       if (check_ref_format(ref.buf))
+       if (strbuf_check_branch_ref(&ref, name))
                die("'%s' is not a valid branch name.", name);
 
        if (resolve_ref(ref.buf, sha1, 1, NULL)) {
@@ -152,7 +172,7 @@ void create_branch(const char *head,
 
        lock = lock_any_ref_for_update(ref.buf, NULL, 0);
        if (!lock)
-               die("Failed to lock ref for update: %s.", strerror(errno));
+               die_errno("Failed to lock ref for update");
 
        if (reflog)
                log_all_ref_updates = 1;
@@ -168,7 +188,7 @@ void create_branch(const char *head,
                setup_tracking(name, real_ref, track);
 
        if (write_ref_sha1(lock, sha1, msg) < 0)
-               die("Failed to write ref: %s.", strerror(errno));
+               die_errno("Failed to write ref");
 
        strbuf_release(&ref);
        free(real_ref);