Allow cloning to an existing empty directory
[gitweb.git] / builtin-branch.c
index 5db8ad836ab9e717a6179458b950469a0ee6d329..02fa38fd3b13b5c17aa23edbfd79f91a052adf76 100644 (file)
@@ -97,7 +97,6 @@ static int delete_branches(int argc, const char **argv, int force, int kinds)
        unsigned char sha1[20];
        char *name = NULL;
        const char *fmt, *remote;
-       char section[PATH_MAX];
        int i;
        int ret = 0;
 
@@ -160,16 +159,18 @@ static int delete_branches(int argc, const char **argv, int force, int kinds)
                        continue;
                }
 
-               if (delete_ref(name, sha1)) {
+               if (delete_ref(name, sha1, 0)) {
                        error("Error deleting %sbranch '%s'", remote,
                               argv[i]);
                        ret = 1;
                } else {
-                       printf("Deleted %sbranch %s.\n", remote, argv[i]);
-                       snprintf(section, sizeof(section), "branch.%s",
-                                argv[i]);
-                       if (git_config_rename_section(section, NULL) < 0)
+                       struct strbuf buf = STRBUF_INIT;
+                       printf("Deleted %sbranch %s (%s).\n", remote, argv[i],
+                               find_unique_abbrev(sha1, DEFAULT_ABBREV));
+                       strbuf_addf(&buf, "branch.%s", argv[i]);
+                       if (git_config_rename_section(buf.buf, NULL) < 0)
                                warning("Update of config-file failed");
+                       strbuf_release(&buf);
                }
        }
 
@@ -214,7 +215,6 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags,
        struct commit *commit;
        int kind;
        int len;
-       static struct commit_list branch;
 
        /* Detect kind */
        if (!prefixcmp(refname, "refs/heads/")) {
@@ -238,13 +238,9 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags,
        if ((kind & ref_list->kinds) == 0)
                return 0;
 
-       if (merge_filter != NO_FILTER) {
-               branch.item = lookup_commit_reference_gently(sha1, 1);
-               if (!branch.item)
-                       die("Unable to lookup tip of branch %s", refname);
+       if (merge_filter != NO_FILTER)
                add_pending_object(&ref_list->revs,
-                                  (struct object *)branch.item, refname);
-       }
+                                  (struct object *)commit, refname);
 
        /* Resize buffer */
        if (ref_list->index >= ref_list->alloc) {
@@ -284,7 +280,7 @@ static int ref_cmp(const void *r1, const void *r2)
        return strcmp(c1->name, c2->name);
 }
 
-static void fill_tracking_info(char *stat, const char *branch_name)
+static void fill_tracking_info(struct strbuf *stat, const char *branch_name)
 {
        int ours, theirs;
        struct branch *branch = branch_get(branch_name);
@@ -292,11 +288,22 @@ static void fill_tracking_info(char *stat, const char *branch_name)
        if (!stat_tracking_info(branch, &ours, &theirs) || (!ours && !theirs))
                return;
        if (!ours)
-               sprintf(stat, "[behind %d] ", theirs);
+               strbuf_addf(stat, "[behind %d] ", theirs);
        else if (!theirs)
-               sprintf(stat, "[ahead %d] ", ours);
+               strbuf_addf(stat, "[ahead %d] ", ours);
        else
-               sprintf(stat, "[ahead %d, behind %d] ", ours, theirs);
+               strbuf_addf(stat, "[ahead %d, behind %d] ", ours, theirs);
+}
+
+static int matches_merge_filter(struct commit *commit)
+{
+       int is_merged;
+
+       if (merge_filter == NO_FILTER)
+               return 1;
+
+       is_merged = !!(commit->object.flags & UNINTERESTING);
+       return (is_merged == (merge_filter == SHOW_MERGED));
 }
 
 static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
@@ -306,11 +313,8 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
        int color;
        struct commit *commit = item->commit;
 
-       if (merge_filter != NO_FILTER) {
-               int is_merged = !!(item->commit->object.flags & UNINTERESTING);
-               if (is_merged != (merge_filter == SHOW_MERGED))
-                       return;
-       }
+       if (!matches_merge_filter(commit))
+               return;
 
        switch (item->kind) {
        case REF_LOCAL_BRANCH:
@@ -331,12 +335,8 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
        }
 
        if (verbose) {
-               struct strbuf subject;
+               struct strbuf subject = STRBUF_INIT, stat = STRBUF_INIT;
                const char *sub = " **** invalid ref ****";
-               char stat[128];
-
-               strbuf_init(&subject, 0);
-               stat[0] = '\0';
 
                commit = item->commit;
                if (commit && !parse_commit(commit)) {
@@ -346,13 +346,14 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
                }
 
                if (item->kind == REF_LOCAL_BRANCH)
-                       fill_tracking_info(stat, item->name);
+                       fill_tracking_info(&stat, item->name);
 
                printf("%c %s%-*s%s %s %s%s\n", c, branch_get_color(color),
                       maxwidth, item->name,
                       branch_get_color(COLOR_BRANCH_RESET),
                       find_unique_abbrev(item->commit->object.sha1, abbrev),
-                      stat, sub);
+                      stat.buf, sub);
+               strbuf_release(&stat);
                strbuf_release(&subject);
        } else {
                printf("%c %s%s%s\n", c, branch_get_color(color), item->name,
@@ -360,6 +361,19 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
        }
 }
 
+static int calc_maxwidth(struct ref_list *refs)
+{
+       int i, l, w = 0;
+       for (i = 0; i < refs->index; i++) {
+               if (!matches_merge_filter(refs->list[i].commit))
+                       continue;
+               l = strlen(refs->list[i].name);
+               if (l > w)
+                       w = l;
+       }
+       return w;
+}
+
 static void print_ref_list(int kinds, int detached, int verbose, int abbrev, struct commit_list *with_commit)
 {
        int i;
@@ -380,6 +394,8 @@ static void print_ref_list(int kinds, int detached, int verbose, int abbrev, str
                                   (struct object *) filter, "");
                ref_list.revs.limited = 1;
                prepare_revision_walk(&ref_list.revs);
+               if (verbose)
+                       ref_list.maxwidth = calc_maxwidth(&ref_list);
        }
 
        qsort(ref_list.list, ref_list.index, sizeof(struct ref_item), ref_cmp);
@@ -409,42 +425,45 @@ static void print_ref_list(int kinds, int detached, int verbose, int abbrev, str
 
 static void rename_branch(const char *oldname, const char *newname, int force)
 {
-       char oldref[PATH_MAX], newref[PATH_MAX], logmsg[PATH_MAX*2 + 100];
+       struct strbuf oldref = STRBUF_INIT, newref = STRBUF_INIT, logmsg = STRBUF_INIT;
        unsigned char sha1[20];
-       char oldsection[PATH_MAX], newsection[PATH_MAX];
+       struct strbuf oldsection = STRBUF_INIT, newsection = STRBUF_INIT;
 
        if (!oldname)
                die("cannot rename the current branch while not on any.");
 
-       if (snprintf(oldref, sizeof(oldref), "refs/heads/%s", oldname) > sizeof(oldref))
-               die("Old branchname too long");
+       strbuf_addf(&oldref, "refs/heads/%s", oldname);
 
-       if (check_ref_format(oldref))
-               die("Invalid branch name: %s", oldref);
+       if (check_ref_format(oldref.buf))
+               die("Invalid branch name: %s", oldref.buf);
 
-       if (snprintf(newref, sizeof(newref), "refs/heads/%s", newname) > sizeof(newref))
-               die("New branchname too long");
+       strbuf_addf(&newref, "refs/heads/%s", newname);
 
-       if (check_ref_format(newref))
-               die("Invalid branch name: %s", newref);
+       if (check_ref_format(newref.buf))
+               die("Invalid branch name: %s", newref.buf);
 
-       if (resolve_ref(newref, sha1, 1, NULL) && !force)
+       if (resolve_ref(newref.buf, sha1, 1, NULL) && !force)
                die("A branch named '%s' already exists.", newname);
 
-       snprintf(logmsg, sizeof(logmsg), "Branch: renamed %s to %s",
-                oldref, newref);
+       strbuf_addf(&logmsg, "Branch: renamed %s to %s",
+                oldref.buf, newref.buf);
 
-       if (rename_ref(oldref, newref, logmsg))
+       if (rename_ref(oldref.buf, newref.buf, logmsg.buf))
                die("Branch rename failed");
+       strbuf_release(&logmsg);
 
        /* no need to pass logmsg here as HEAD didn't really move */
-       if (!strcmp(oldname, head) && create_symref("HEAD", newref, NULL))
+       if (!strcmp(oldname, head) && create_symref("HEAD", newref.buf, NULL))
                die("Branch renamed to %s, but HEAD is not updated!", newname);
 
-       snprintf(oldsection, sizeof(oldsection), "branch.%s", oldref + 11);
-       snprintf(newsection, sizeof(newsection), "branch.%s", newref + 11);
-       if (git_config_rename_section(oldsection, newsection) < 0)
+       strbuf_addf(&oldsection, "branch.%s", oldref.buf + 11);
+       strbuf_release(&oldref);
+       strbuf_addf(&newsection, "branch.%s", newref.buf + 11);
+       strbuf_release(&newref);
+       if (git_config_rename_section(oldsection.buf, newsection.buf) < 0)
                die("Branch is renamed, but update of config-file failed");
+       strbuf_release(&oldsection);
+       strbuf_release(&newsection);
 }
 
 static int opt_parse_with_commit(const struct option *opt, const char *arg, int unset)