Code

Merge branch 'jc/clone'
[git.git] / builtin-branch.c
index 22e3285a4ccf42f1f5a679eb209925bb03419d0f..515330c155a8e54c72fd02ea74e30be10b852490 100644 (file)
@@ -6,17 +6,70 @@
  */
 
 #include "cache.h"
+#include "color.h"
 #include "refs.h"
 #include "commit.h"
 #include "builtin.h"
 
 static const char builtin_branch_usage[] =
-"git-branch (-d | -D) <branchname> | [-l] [-f] <branchname> [<start-point>] | [-r] | [-a]";
+  "git-branch (-d | -D) <branchname> | [-l] [-f] <branchname> [<start-point>] | (-m | -M) [<oldbranch>] <newbranch> | [-r | -a] [-v [--abbrev=<length>]]";
 
 
 static const char *head;
 static unsigned char head_sha1[20];
 
+static int branch_use_color;
+static char branch_colors[][COLOR_MAXLEN] = {
+       "\033[m",       /* reset */
+       "",             /* PLAIN (normal) */
+       "\033[31m",     /* REMOTE (red) */
+       "",             /* LOCAL (normal) */
+       "\033[32m",     /* CURRENT (green) */
+};
+enum color_branch {
+       COLOR_BRANCH_RESET = 0,
+       COLOR_BRANCH_PLAIN = 1,
+       COLOR_BRANCH_REMOTE = 2,
+       COLOR_BRANCH_LOCAL = 3,
+       COLOR_BRANCH_CURRENT = 4,
+};
+
+static int parse_branch_color_slot(const char *var, int ofs)
+{
+       if (!strcasecmp(var+ofs, "plain"))
+               return COLOR_BRANCH_PLAIN;
+       if (!strcasecmp(var+ofs, "reset"))
+               return COLOR_BRANCH_RESET;
+       if (!strcasecmp(var+ofs, "remote"))
+               return COLOR_BRANCH_REMOTE;
+       if (!strcasecmp(var+ofs, "local"))
+               return COLOR_BRANCH_LOCAL;
+       if (!strcasecmp(var+ofs, "current"))
+               return COLOR_BRANCH_CURRENT;
+       die("bad config variable '%s'", var);
+}
+
+int git_branch_config(const char *var, const char *value)
+{
+       if (!strcmp(var, "color.branch")) {
+               branch_use_color = git_config_colorbool(var, value);
+               return 0;
+       }
+       if (!strncmp(var, "color.branch.", 13)) {
+               int slot = parse_branch_color_slot(var, 13);
+               color_parse(value, var, branch_colors[slot]);
+               return 0;
+       }
+       return git_default_config(var, value);
+}
+
+const char *branch_get_color(enum color_branch ix)
+{
+       if (branch_use_color)
+               return branch_colors[ix];
+       return "";
+}
+
 static int in_merge_bases(const unsigned char *sha1,
                          struct commit *rev1,
                          struct commit *rev2)
@@ -38,12 +91,16 @@ static int in_merge_bases(const unsigned char *sha1,
 
 static void delete_branches(int argc, const char **argv, int force)
 {
-       struct commit *rev, *head_rev;
+       struct commit *rev, *head_rev = head_rev;
        unsigned char sha1[20];
        char *name;
        int i;
 
-       head_rev = lookup_commit_reference(head_sha1);
+       if (!force) {
+               head_rev = lookup_commit_reference(head_sha1);
+               if (!head_rev)
+                       die("Couldn't look up commit object for HEAD");
+       }
        for (i = 0; i < argc; i++) {
                if (!strcmp(head, argv[i]))
                        die("Cannot delete the branch you are currently on.");
@@ -53,8 +110,8 @@ static void delete_branches(int argc, const char **argv, int force)
                        die("Branch '%s' not found.", argv[i]);
 
                rev = lookup_commit_reference(sha1);
-               if (!rev || !head_rev)
-                       die("Couldn't look up commit objects.");
+               if (!rev)
+                       die("Couldn't look up commit object for '%s'", name);
 
                /* This checks whether the merge bases of branch and
                 * HEAD contains branch -- which means that the HEAD
@@ -87,10 +144,11 @@ static void delete_branches(int argc, const char **argv, int force)
 struct ref_item {
        char *name;
        unsigned int kind;
+       unsigned char sha1[20];
 };
 
 struct ref_list {
-       int index, alloc;
+       int index, alloc, maxwidth;
        struct ref_item *list;
        int kinds;
 };
@@ -100,6 +158,7 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags,
        struct ref_list *ref_list = (struct ref_list*)(cb_data);
        struct ref_item *newitem;
        int kind = REF_UNKNOWN_TYPE;
+       int len;
 
        /* Detect kind */
        if (!strncmp(refname, "refs/heads/", 11)) {
@@ -128,6 +187,10 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags,
        newitem = &(ref_list->list[ref_list->index++]);
        newitem->name = xstrdup(refname);
        newitem->kind = kind;
+       hashcpy(newitem->sha1, sha1);
+       len = strlen(newitem->name);
+       if (len > ref_list->maxwidth)
+               ref_list->maxwidth = len;
 
        return 0;
 }
@@ -151,11 +214,29 @@ static int ref_cmp(const void *r1, const void *r2)
        return strcmp(c1->name, c2->name);
 }
 
-static void print_ref_list(int kinds)
+static void print_ref_info(const unsigned char *sha1, int abbrev)
+{
+       struct commit *commit;
+       char subject[256];
+
+
+       commit = lookup_commit(sha1);
+       if (commit && !parse_commit(commit))
+               pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0,
+                                   subject, sizeof(subject), 0,
+                                   NULL, NULL, 0);
+       else
+               strcpy(subject, " **** invalid ref ****");
+
+       printf(" %s %s\n", find_unique_abbrev(sha1, abbrev), subject);
+}
+
+static void print_ref_list(int kinds, int verbose, int abbrev)
 {
        int i;
        char c;
        struct ref_list ref_list;
+       int color;
 
        memset(&ref_list, 0, sizeof(ref_list));
        ref_list.kinds = kinds;
@@ -164,12 +245,38 @@ static void print_ref_list(int kinds)
        qsort(ref_list.list, ref_list.index, sizeof(struct ref_item), ref_cmp);
 
        for (i = 0; i < ref_list.index; i++) {
+               switch( ref_list.list[i].kind ) {
+                       case REF_LOCAL_BRANCH:
+                               color = COLOR_BRANCH_LOCAL;
+                               break;
+                       case REF_REMOTE_BRANCH:
+                               color = COLOR_BRANCH_REMOTE;
+                               break;
+                       default:
+                               color = COLOR_BRANCH_PLAIN;
+                               break;
+               }
+
                c = ' ';
                if (ref_list.list[i].kind == REF_LOCAL_BRANCH &&
-                               !strcmp(ref_list.list[i].name, head))
+                               !strcmp(ref_list.list[i].name, head)) {
                        c = '*';
+                       color = COLOR_BRANCH_CURRENT;
+               }
 
-               printf("%c %s\n", c, ref_list.list[i].name);
+               if (verbose) {
+                       printf("%c %s%-*s%s", c,
+                                       branch_get_color(color),
+                                       ref_list.maxwidth,
+                                       ref_list.list[i].name,
+                                       branch_get_color(COLOR_BRANCH_RESET));
+                       print_ref_info(ref_list.list[i].sha1, abbrev);
+               }
+               else
+                       printf("%c %s%s%s\n", c,
+                                       branch_get_color(color),
+                                       ref_list.list[i].name,
+                                       branch_get_color(COLOR_BRANCH_RESET));
        }
 
        free_ref_list(&ref_list);
@@ -212,14 +319,47 @@ static void create_branch(const char *name, const char *start,
                die("Failed to write ref: %s.", strerror(errno));
 }
 
+static void rename_branch(const char *oldname, const char *newname, int force)
+{
+       char oldref[PATH_MAX], newref[PATH_MAX], logmsg[PATH_MAX*2 + 100];
+       unsigned char sha1[20];
+
+       if (snprintf(oldref, sizeof(oldref), "refs/heads/%s", oldname) > sizeof(oldref))
+               die("Old branchname too long");
+
+       if (check_ref_format(oldref))
+               die("Invalid branch name: %s", oldref);
+
+       if (snprintf(newref, sizeof(newref), "refs/heads/%s", newname) > sizeof(newref))
+               die("New branchname too long");
+
+       if (check_ref_format(newref))
+               die("Invalid branch name: %s", newref);
+
+       if (resolve_ref(newref, sha1, 1, NULL) && !force)
+               die("A branch named '%s' already exists.", newname);
+
+       snprintf(logmsg, sizeof(logmsg), "Branch: renamed %s to %s",
+                oldref, newref);
+
+       if (rename_ref(oldref, newref, logmsg))
+               die("Branch rename failed");
+
+       if (!strcmp(oldname, head) && create_symref("HEAD", newref))
+               die("Branch renamed to %s, but HEAD is not updated!", newname);
+}
+
 int cmd_branch(int argc, const char **argv, const char *prefix)
 {
        int delete = 0, force_delete = 0, force_create = 0;
+       int rename = 0, force_rename = 0;
+       int verbose = 0, abbrev = DEFAULT_ABBREV;
        int reflog = 0;
        int kinds = REF_LOCAL_BRANCH;
        int i;
 
-       git_config(git_default_config);
+       setup_ident();
+       git_config(git_branch_config);
 
        for (i = 1; i < argc; i++) {
                const char *arg = argv[i];
@@ -243,6 +383,15 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
                        force_create = 1;
                        continue;
                }
+               if (!strcmp(arg, "-m")) {
+                       rename = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "-M")) {
+                       rename = 1;
+                       force_rename = 1;
+                       continue;
+               }
                if (!strcmp(arg, "-r")) {
                        kinds = REF_REMOTE_BRANCH;
                        continue;
@@ -255,9 +404,29 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
                        reflog = 1;
                        continue;
                }
+               if (!strncmp(arg, "--abbrev=", 9)) {
+                       abbrev = atoi(arg+9);
+                       continue;
+               }
+               if (!strcmp(arg, "-v")) {
+                       verbose = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "--color")) {
+                       branch_use_color = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "--no-color")) {
+                       branch_use_color = 0;
+                       continue;
+               }
                usage(builtin_branch_usage);
        }
 
+       if ((delete && rename) || (delete && force_create) ||
+           (rename && force_create))
+               usage(builtin_branch_usage);
+
        head = xstrdup(resolve_ref("HEAD", head_sha1, 0, NULL));
        if (!head)
                die("Failed to resolve HEAD as a valid ref.");
@@ -268,7 +437,11 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
        if (delete)
                delete_branches(argc - i, argv + i, force_delete);
        else if (i == argc)
-               print_ref_list(kinds);
+               print_ref_list(kinds, verbose, abbrev);
+       else if (rename && (i == argc - 1))
+               rename_branch(head, argv[i], force_rename);
+       else if (rename && (i == argc - 2))
+               rename_branch(argv[i], argv[i + 1], force_rename);
        else if (i == argc - 1)
                create_branch(argv[i], head, force_create, reflog);
        else if (i == argc - 2)