4 * Copyright (c) 2006 Kristian Høgsberg <krh@redhat.com>
5 * Based on git-branch.sh by Junio C Hamano.
14 #include "parse-options.h"
17 static const char * const builtin_branch_usage
[] = {
18 "git-branch [options] [-r | -a]",
19 "git-branch [options] [-l] [-f] <branchname> [<start-point>]",
20 "git-branch [options] [-r] (-d | -D) <branchname>",
21 "git-branch [options] (-m | -M) [<oldbranch>] <newbranch>",
25 #define REF_UNKNOWN_TYPE 0x00
26 #define REF_LOCAL_BRANCH 0x01
27 #define REF_REMOTE_BRANCH 0x02
30 static const char *head
;
31 static unsigned char head_sha1
[20];
33 static int branch_track
= 1;
35 static int branch_use_color
= -1;
36 static char branch_colors
[][COLOR_MAXLEN
] = {
38 "", /* PLAIN (normal) */
39 "\033[31m", /* REMOTE (red) */
40 "", /* LOCAL (normal) */
41 "\033[32m", /* CURRENT (green) */
44 COLOR_BRANCH_RESET
= 0,
45 COLOR_BRANCH_PLAIN
= 1,
46 COLOR_BRANCH_REMOTE
= 2,
47 COLOR_BRANCH_LOCAL
= 3,
48 COLOR_BRANCH_CURRENT
= 4,
51 static int parse_branch_color_slot(const char *var
, int ofs
)
53 if (!strcasecmp(var
+ofs
, "plain"))
54 return COLOR_BRANCH_PLAIN
;
55 if (!strcasecmp(var
+ofs
, "reset"))
56 return COLOR_BRANCH_RESET
;
57 if (!strcasecmp(var
+ofs
, "remote"))
58 return COLOR_BRANCH_REMOTE
;
59 if (!strcasecmp(var
+ofs
, "local"))
60 return COLOR_BRANCH_LOCAL
;
61 if (!strcasecmp(var
+ofs
, "current"))
62 return COLOR_BRANCH_CURRENT
;
63 die("bad config variable '%s'", var
);
66 static int git_branch_config(const char *var
, const char *value
)
68 if (!strcmp(var
, "color.branch")) {
69 branch_use_color
= git_config_colorbool(var
, value
, -1);
72 if (!prefixcmp(var
, "color.branch.")) {
73 int slot
= parse_branch_color_slot(var
, 13);
75 return config_error_nonbool(var
);
76 color_parse(value
, var
, branch_colors
[slot
]);
79 if (!strcmp(var
, "branch.autosetupmerge")) {
80 branch_track
= git_config_bool(var
, value
);
83 return git_color_default_config(var
, value
);
86 static const char *branch_get_color(enum color_branch ix
)
88 if (branch_use_color
> 0)
89 return branch_colors
[ix
];
93 static int delete_branches(int argc
, const char **argv
, int force
, int kinds
)
95 struct commit
*rev
, *head_rev
= head_rev
;
96 unsigned char sha1
[20];
98 const char *fmt
, *remote
;
99 char section
[PATH_MAX
];
104 case REF_REMOTE_BRANCH
:
105 fmt
= "refs/remotes/%s";
109 case REF_LOCAL_BRANCH
:
110 fmt
= "refs/heads/%s";
114 die("cannot use -a with -d");
118 head_rev
= lookup_commit_reference(head_sha1
);
120 die("Couldn't look up commit object for HEAD");
122 for (i
= 0; i
< argc
; i
++) {
123 if (kinds
== REF_LOCAL_BRANCH
&& !strcmp(head
, argv
[i
])) {
124 error("Cannot delete the branch '%s' "
125 "which you are currently on.", argv
[i
]);
133 name
= xstrdup(mkpath(fmt
, argv
[i
]));
134 if (!resolve_ref(name
, sha1
, 1, NULL
)) {
135 error("%sbranch '%s' not found.",
141 rev
= lookup_commit_reference(sha1
);
143 error("Couldn't look up commit object for '%s'", name
);
148 /* This checks whether the merge bases of branch and
149 * HEAD contains branch -- which means that the HEAD
150 * contains everything in both.
154 !in_merge_bases(rev
, &head_rev
, 1)) {
155 error("The branch '%s' is not an ancestor of "
156 "your current HEAD.\n"
157 "If you are sure you want to delete it, "
158 "run 'git branch -D %s'.", argv
[i
], argv
[i
]);
163 if (delete_ref(name
, sha1
)) {
164 error("Error deleting %sbranch '%s'", remote
,
168 printf("Deleted %sbranch %s.\n", remote
, argv
[i
]);
169 snprintf(section
, sizeof(section
), "branch.%s",
171 if (git_config_rename_section(section
, NULL
) < 0)
172 warning("Update of config-file failed");
185 unsigned char sha1
[20];
189 int index
, alloc
, maxwidth
;
190 struct ref_item
*list
;
191 struct commit_list
*with_commit
;
195 static int has_commit(const unsigned char *sha1
, struct commit_list
*with_commit
)
197 struct commit
*commit
;
201 commit
= lookup_commit_reference_gently(sha1
, 1);
204 while (with_commit
) {
205 struct commit
*other
;
207 other
= with_commit
->item
;
208 with_commit
= with_commit
->next
;
209 if (in_merge_bases(other
, &commit
, 1))
215 static int append_ref(const char *refname
, const unsigned char *sha1
, int flags
, void *cb_data
)
217 struct ref_list
*ref_list
= (struct ref_list
*)(cb_data
);
218 struct ref_item
*newitem
;
219 int kind
= REF_UNKNOWN_TYPE
;
223 if (!prefixcmp(refname
, "refs/heads/")) {
224 kind
= REF_LOCAL_BRANCH
;
226 } else if (!prefixcmp(refname
, "refs/remotes/")) {
227 kind
= REF_REMOTE_BRANCH
;
229 } else if (!prefixcmp(refname
, "refs/tags/")) {
234 /* Filter with with_commit if specified */
235 if (!has_commit(sha1
, ref_list
->with_commit
))
238 /* Don't add types the caller doesn't want */
239 if ((kind
& ref_list
->kinds
) == 0)
243 if (ref_list
->index
>= ref_list
->alloc
) {
244 ref_list
->alloc
= alloc_nr(ref_list
->alloc
);
245 ref_list
->list
= xrealloc(ref_list
->list
,
246 ref_list
->alloc
* sizeof(struct ref_item
));
249 /* Record the new item */
250 newitem
= &(ref_list
->list
[ref_list
->index
++]);
251 newitem
->name
= xstrdup(refname
);
252 newitem
->kind
= kind
;
253 hashcpy(newitem
->sha1
, sha1
);
254 len
= strlen(newitem
->name
);
255 if (len
> ref_list
->maxwidth
)
256 ref_list
->maxwidth
= len
;
261 static void free_ref_list(struct ref_list
*ref_list
)
265 for (i
= 0; i
< ref_list
->index
; i
++)
266 free(ref_list
->list
[i
].name
);
267 free(ref_list
->list
);
270 static int ref_cmp(const void *r1
, const void *r2
)
272 struct ref_item
*c1
= (struct ref_item
*)(r1
);
273 struct ref_item
*c2
= (struct ref_item
*)(r2
);
275 if (c1
->kind
!= c2
->kind
)
276 return c1
->kind
- c2
->kind
;
277 return strcmp(c1
->name
, c2
->name
);
280 static void print_ref_item(struct ref_item
*item
, int maxwidth
, int verbose
,
281 int abbrev
, int current
)
285 struct commit
*commit
;
287 switch (item
->kind
) {
288 case REF_LOCAL_BRANCH
:
289 color
= COLOR_BRANCH_LOCAL
;
291 case REF_REMOTE_BRANCH
:
292 color
= COLOR_BRANCH_REMOTE
;
295 color
= COLOR_BRANCH_PLAIN
;
302 color
= COLOR_BRANCH_CURRENT
;
306 struct strbuf subject
;
307 const char *sub
= " **** invalid ref ****";
309 strbuf_init(&subject
, 0);
311 commit
= lookup_commit(item
->sha1
);
312 if (commit
&& !parse_commit(commit
)) {
313 pretty_print_commit(CMIT_FMT_ONELINE
, commit
,
314 &subject
, 0, NULL
, NULL
, 0, 0);
317 printf("%c %s%-*s%s %s %s\n", c
, branch_get_color(color
),
318 maxwidth
, item
->name
,
319 branch_get_color(COLOR_BRANCH_RESET
),
320 find_unique_abbrev(item
->sha1
, abbrev
), sub
);
321 strbuf_release(&subject
);
323 printf("%c %s%s%s\n", c
, branch_get_color(color
), item
->name
,
324 branch_get_color(COLOR_BRANCH_RESET
));
328 static void print_ref_list(int kinds
, int detached
, int verbose
, int abbrev
, struct commit_list
*with_commit
)
331 struct ref_list ref_list
;
333 memset(&ref_list
, 0, sizeof(ref_list
));
334 ref_list
.kinds
= kinds
;
335 ref_list
.with_commit
= with_commit
;
336 for_each_ref(append_ref
, &ref_list
);
338 qsort(ref_list
.list
, ref_list
.index
, sizeof(struct ref_item
), ref_cmp
);
340 detached
= (detached
&& (kinds
& REF_LOCAL_BRANCH
));
341 if (detached
&& has_commit(head_sha1
, with_commit
)) {
342 struct ref_item item
;
343 item
.name
= xstrdup("(no branch)");
344 item
.kind
= REF_LOCAL_BRANCH
;
345 hashcpy(item
.sha1
, head_sha1
);
346 if (strlen(item
.name
) > ref_list
.maxwidth
)
347 ref_list
.maxwidth
= strlen(item
.name
);
348 print_ref_item(&item
, ref_list
.maxwidth
, verbose
, abbrev
, 1);
352 for (i
= 0; i
< ref_list
.index
; i
++) {
353 int current
= !detached
&&
354 (ref_list
.list
[i
].kind
== REF_LOCAL_BRANCH
) &&
355 !strcmp(ref_list
.list
[i
].name
, head
);
356 print_ref_item(&ref_list
.list
[i
], ref_list
.maxwidth
, verbose
,
360 free_ref_list(&ref_list
);
363 static void rename_branch(const char *oldname
, const char *newname
, int force
)
365 char oldref
[PATH_MAX
], newref
[PATH_MAX
], logmsg
[PATH_MAX
*2 + 100];
366 unsigned char sha1
[20];
367 char oldsection
[PATH_MAX
], newsection
[PATH_MAX
];
370 die("cannot rename the current branch while not on any.");
372 if (snprintf(oldref
, sizeof(oldref
), "refs/heads/%s", oldname
) > sizeof(oldref
))
373 die("Old branchname too long");
375 if (check_ref_format(oldref
))
376 die("Invalid branch name: %s", oldref
);
378 if (snprintf(newref
, sizeof(newref
), "refs/heads/%s", newname
) > sizeof(newref
))
379 die("New branchname too long");
381 if (check_ref_format(newref
))
382 die("Invalid branch name: %s", newref
);
384 if (resolve_ref(newref
, sha1
, 1, NULL
) && !force
)
385 die("A branch named '%s' already exists.", newname
);
387 snprintf(logmsg
, sizeof(logmsg
), "Branch: renamed %s to %s",
390 if (rename_ref(oldref
, newref
, logmsg
))
391 die("Branch rename failed");
393 /* no need to pass logmsg here as HEAD didn't really move */
394 if (!strcmp(oldname
, head
) && create_symref("HEAD", newref
, NULL
))
395 die("Branch renamed to %s, but HEAD is not updated!", newname
);
397 snprintf(oldsection
, sizeof(oldsection
), "branch.%s", oldref
+ 11);
398 snprintf(newsection
, sizeof(newsection
), "branch.%s", newref
+ 11);
399 if (git_config_rename_section(oldsection
, newsection
) < 0)
400 die("Branch is renamed, but update of config-file failed");
403 static int opt_parse_with_commit(const struct option
*opt
, const char *arg
, int unset
)
405 unsigned char sha1
[20];
406 struct commit
*commit
;
410 if (get_sha1(arg
, sha1
))
411 die("malformed object name %s", arg
);
412 commit
= lookup_commit_reference(sha1
);
414 die("no such commit %s", arg
);
415 commit_list_insert(commit
, opt
->value
);
419 int cmd_branch(int argc
, const char **argv
, const char *prefix
)
421 int delete = 0, rename
= 0, force_create
= 0;
422 int verbose
= 0, abbrev
= DEFAULT_ABBREV
, detached
= 0;
423 int reflog
= 0, track
;
424 int kinds
= REF_LOCAL_BRANCH
;
425 struct commit_list
*with_commit
= NULL
;
427 struct option options
[] = {
428 OPT_GROUP("Generic options"),
429 OPT__VERBOSE(&verbose
),
430 OPT_BOOLEAN( 0 , "track", &track
, "set up tracking mode (see git-pull(1))"),
431 OPT_BOOLEAN( 0 , "color", &branch_use_color
, "use colored output"),
432 OPT_SET_INT('r', NULL
, &kinds
, "act on remote-tracking branches",
434 OPT_CALLBACK(0, "contains", &with_commit
, "commit",
435 "print only branches that contain the commit",
436 opt_parse_with_commit
),
438 OPTION_CALLBACK
, 0, "with", &with_commit
, "commit",
439 "print only branches that contain the commit",
440 PARSE_OPT_HIDDEN
, opt_parse_with_commit
,
442 OPT__ABBREV(&abbrev
),
444 OPT_GROUP("Specific git-branch actions:"),
445 OPT_SET_INT('a', NULL
, &kinds
, "list both remote-tracking and local branches",
446 REF_REMOTE_BRANCH
| REF_LOCAL_BRANCH
),
447 OPT_BIT('d', NULL
, &delete, "delete fully merged branch", 1),
448 OPT_BIT('D', NULL
, &delete, "delete branch (even if not merged)", 2),
449 OPT_BIT('m', NULL
, &rename
, "move/rename a branch and its reflog", 1),
450 OPT_BIT('M', NULL
, &rename
, "move/rename a branch, even if target exists", 2),
451 OPT_BOOLEAN('l', NULL
, &reflog
, "create the branch's reflog"),
452 OPT_BOOLEAN('f', NULL
, &force_create
, "force creation (when already exists)"),
456 git_config(git_branch_config
);
458 if (branch_use_color
== -1)
459 branch_use_color
= git_use_color_default
;
461 track
= branch_track
;
462 argc
= parse_options(argc
, argv
, options
, builtin_branch_usage
, 0);
463 if (!!delete + !!rename
+ !!force_create
> 1)
464 usage_with_options(builtin_branch_usage
, options
);
466 head
= resolve_ref("HEAD", head_sha1
, 0, NULL
);
468 die("Failed to resolve HEAD as a valid ref.");
469 head
= xstrdup(head
);
470 if (!strcmp(head
, "HEAD")) {
473 if (prefixcmp(head
, "refs/heads/"))
474 die("HEAD not found below refs/heads!");
479 return delete_branches(argc
, argv
, delete > 1, kinds
);
481 print_ref_list(kinds
, detached
, verbose
, abbrev
, with_commit
);
482 else if (rename
&& (argc
== 1))
483 rename_branch(head
, argv
[0], rename
> 1);
484 else if (rename
&& (argc
== 2))
485 rename_branch(argv
[0], argv
[1], rename
> 1);
487 create_branch(head
, argv
[0], (argc
== 2) ? argv
[1] : head
,
488 force_create
, reflog
, track
);
490 usage_with_options(builtin_branch_usage
, options
);