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Commit | Line | Data |
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303d1d0b | 1 | #include "git-compat-util.h" |
e496c003 | 2 | #include "cache.h" |
b2141fc1 | 3 | #include "config.h" |
e496c003 DB |
4 | #include "branch.h" |
5 | #include "refs.h" | |
ec0cb496 | 6 | #include "refspec.h" |
e496c003 DB |
7 | #include "remote.h" |
8 | #include "commit.h" | |
ac6c561b | 9 | #include "worktree.h" |
e496c003 DB |
10 | |
11 | struct tracking { | |
0ad4a5ff | 12 | struct refspec_item spec; |
e496c003 DB |
13 | char *src; |
14 | const char *remote; | |
15 | int matches; | |
16 | }; | |
17 | ||
18 | static int find_tracked_branch(struct remote *remote, void *priv) | |
19 | { | |
20 | struct tracking *tracking = priv; | |
21 | ||
22 | if (!remote_find_tracking(remote, &tracking->spec)) { | |
23 | if (++tracking->matches == 1) { | |
24 | tracking->src = tracking->spec.src; | |
25 | tracking->remote = remote->name; | |
26 | } else { | |
27 | free(tracking->spec.src); | |
ce528de0 | 28 | FREE_AND_NULL(tracking->src); |
e496c003 DB |
29 | } |
30 | tracking->spec.src = NULL; | |
31 | } | |
32 | ||
33 | return 0; | |
34 | } | |
35 | ||
a9f2c136 | 36 | static int should_setup_rebase(const char *origin) |
c998ae9b DS |
37 | { |
38 | switch (autorebase) { | |
39 | case AUTOREBASE_NEVER: | |
40 | return 0; | |
41 | case AUTOREBASE_LOCAL: | |
a9f2c136 | 42 | return origin == NULL; |
c998ae9b | 43 | case AUTOREBASE_REMOTE: |
a9f2c136 | 44 | return origin != NULL; |
c998ae9b DS |
45 | case AUTOREBASE_ALWAYS: |
46 | return 1; | |
47 | } | |
48 | return 0; | |
49 | } | |
50 | ||
27852b2c PS |
51 | static const char tracking_advice[] = |
52 | N_("\n" | |
53 | "After fixing the error cause you may try to fix up\n" | |
54 | "the remote tracking information by invoking\n" | |
55 | "\"git branch --set-upstream-to=%s%s%s\"."); | |
56 | ||
57 | int install_branch_config(int flag, const char *local, const char *origin, const char *remote) | |
a9f2c136 | 58 | { |
cf4fff57 | 59 | const char *shortname = NULL; |
a9f2c136 JH |
60 | struct strbuf key = STRBUF_INIT; |
61 | int rebasing = should_setup_rebase(origin); | |
62 | ||
cf4fff57 | 63 | if (skip_prefix(remote, "refs/heads/", &shortname) |
85e2233f MM |
64 | && !strcmp(local, shortname) |
65 | && !origin) { | |
bc554df8 | 66 | warning(_("Not setting branch %s as its own upstream."), |
85e2233f | 67 | local); |
27852b2c | 68 | return 0; |
85e2233f MM |
69 | } |
70 | ||
a9f2c136 | 71 | strbuf_addf(&key, "branch.%s.remote", local); |
30598ad0 | 72 | if (git_config_set_gently(key.buf, origin ? origin : ".") < 0) |
27852b2c | 73 | goto out_err; |
a9f2c136 JH |
74 | |
75 | strbuf_reset(&key); | |
76 | strbuf_addf(&key, "branch.%s.merge", local); | |
30598ad0 | 77 | if (git_config_set_gently(key.buf, remote) < 0) |
27852b2c | 78 | goto out_err; |
a9f2c136 JH |
79 | |
80 | if (rebasing) { | |
81 | strbuf_reset(&key); | |
82 | strbuf_addf(&key, "branch.%s.rebase", local); | |
30598ad0 | 83 | if (git_config_set_gently(key.buf, "true") < 0) |
27852b2c | 84 | goto out_err; |
a9f2c136 | 85 | } |
d53a3503 | 86 | strbuf_release(&key); |
a9f2c136 | 87 | |
72f60083 | 88 | if (flag & BRANCH_CONFIG_VERBOSE) { |
1d9aaed2 | 89 | if (shortname) { |
9fe0cf3a A |
90 | if (origin) |
91 | printf_ln(rebasing ? | |
9c93ff7c KS |
92 | _("Branch '%s' set up to track remote branch '%s' from '%s' by rebasing.") : |
93 | _("Branch '%s' set up to track remote branch '%s' from '%s'."), | |
9fe0cf3a A |
94 | local, shortname, origin); |
95 | else | |
96 | printf_ln(rebasing ? | |
9c93ff7c KS |
97 | _("Branch '%s' set up to track local branch '%s' by rebasing.") : |
98 | _("Branch '%s' set up to track local branch '%s'."), | |
9fe0cf3a A |
99 | local, shortname); |
100 | } else { | |
101 | if (origin) | |
102 | printf_ln(rebasing ? | |
9c93ff7c KS |
103 | _("Branch '%s' set up to track remote ref '%s' by rebasing.") : |
104 | _("Branch '%s' set up to track remote ref '%s'."), | |
9fe0cf3a A |
105 | local, remote); |
106 | else | |
107 | printf_ln(rebasing ? | |
9c93ff7c KS |
108 | _("Branch '%s' set up to track local ref '%s' by rebasing.") : |
109 | _("Branch '%s' set up to track local ref '%s'."), | |
9fe0cf3a A |
110 | local, remote); |
111 | } | |
72f60083 | 112 | } |
27852b2c PS |
113 | |
114 | return 0; | |
115 | ||
116 | out_err: | |
117 | strbuf_release(&key); | |
118 | error(_("Unable to write upstream branch configuration")); | |
119 | ||
120 | advise(_(tracking_advice), | |
121 | origin ? origin : "", | |
122 | origin ? "/" : "", | |
123 | shortname ? shortname : remote); | |
124 | ||
125 | return -1; | |
a9f2c136 JH |
126 | } |
127 | ||
e496c003 DB |
128 | /* |
129 | * This is called when new_ref is branched off of orig_ref, and tries | |
130 | * to infer the settings for branch.<new_ref>.{remote,merge} from the | |
131 | * config. | |
132 | */ | |
27852b2c PS |
133 | static void setup_tracking(const char *new_ref, const char *orig_ref, |
134 | enum branch_track track, int quiet) | |
e496c003 | 135 | { |
e496c003 | 136 | struct tracking tracking; |
f9a482e6 | 137 | int config_flags = quiet ? 0 : BRANCH_CONFIG_VERBOSE; |
e496c003 | 138 | |
e496c003 DB |
139 | memset(&tracking, 0, sizeof(tracking)); |
140 | tracking.spec.dst = (char *)orig_ref; | |
9ed36cfa | 141 | if (for_each_remote(find_tracked_branch, &tracking)) |
27852b2c | 142 | return; |
e496c003 | 143 | |
9ed36cfa JS |
144 | if (!tracking.matches) |
145 | switch (track) { | |
146 | case BRANCH_TRACK_ALWAYS: | |
147 | case BRANCH_TRACK_EXPLICIT: | |
4fc50066 | 148 | case BRANCH_TRACK_OVERRIDE: |
9ed36cfa JS |
149 | break; |
150 | default: | |
27852b2c | 151 | return; |
9ed36cfa JS |
152 | } |
153 | ||
e496c003 | 154 | if (tracking.matches > 1) |
27852b2c PS |
155 | die(_("Not tracking: ambiguous information for ref %s"), |
156 | orig_ref); | |
e496c003 | 157 | |
27852b2c PS |
158 | if (install_branch_config(config_flags, new_ref, tracking.remote, |
159 | tracking.src ? tracking.src : orig_ref) < 0) | |
160 | exit(-1); | |
e496c003 | 161 | |
a9f2c136 | 162 | free(tracking.src); |
e496c003 DB |
163 | } |
164 | ||
6f9a3321 JH |
165 | int read_branch_desc(struct strbuf *buf, const char *branch_name) |
166 | { | |
540b0f49 | 167 | char *v = NULL; |
6f9a3321 JH |
168 | struct strbuf name = STRBUF_INIT; |
169 | strbuf_addf(&name, "branch.%s.description", branch_name); | |
540b0f49 TA |
170 | if (git_config_get_string(name.buf, &v)) { |
171 | strbuf_release(&name); | |
172 | return -1; | |
173 | } | |
174 | strbuf_addstr(buf, v); | |
175 | free(v); | |
6f9a3321 JH |
176 | strbuf_release(&name); |
177 | return 0; | |
178 | } | |
179 | ||
bc1c9c0e JH |
180 | /* |
181 | * Check if 'name' can be a valid name for a branch; die otherwise. | |
182 | * Return 1 if the named branch already exists; return 0 otherwise. | |
183 | * Fill ref with the full refname for the branch. | |
184 | */ | |
185 | int validate_branchname(const char *name, struct strbuf *ref) | |
55c4a673 | 186 | { |
55c4a673 | 187 | if (strbuf_check_branch_ref(ref, name)) |
bc554df8 | 188 | die(_("'%s' is not a valid branch name."), name); |
55c4a673 | 189 | |
bc1c9c0e JH |
190 | return ref_exists(ref->buf); |
191 | } | |
55c4a673 | 192 | |
bc1c9c0e JH |
193 | /* |
194 | * Check if a branch 'name' can be created as a new branch; die otherwise. | |
195 | * 'force' can be used when it is OK for the named branch already exists. | |
196 | * Return 1 if the named branch already exists; return 0 otherwise. | |
197 | * Fill ref with the full refname for the branch. | |
198 | */ | |
199 | int validate_new_branchname(const char *name, struct strbuf *ref, int force) | |
200 | { | |
201 | const char *head; | |
202 | ||
203 | if (!validate_branchname(name, ref)) | |
55c4a673 | 204 | return 0; |
55c4a673 | 205 | |
8280c4c1 JH |
206 | if (!force) |
207 | die(_("A branch named '%s' already exists."), | |
208 | ref->buf + strlen("refs/heads/")); | |
209 | ||
210 | head = resolve_ref_unsafe("HEAD", 0, NULL, NULL); | |
211 | if (!is_bare_repository() && head && !strcmp(head, ref->buf)) | |
212 | die(_("Cannot force update the current branch.")); | |
55c4a673 CI |
213 | |
214 | return 1; | |
215 | } | |
216 | ||
41c21f22 JH |
217 | static int check_tracking_branch(struct remote *remote, void *cb_data) |
218 | { | |
219 | char *tracking_branch = cb_data; | |
0ad4a5ff BW |
220 | struct refspec_item query; |
221 | memset(&query, 0, sizeof(struct refspec_item)); | |
41c21f22 | 222 | query.dst = tracking_branch; |
1d7358c5 | 223 | return !remote_find_tracking(remote, &query); |
41c21f22 JH |
224 | } |
225 | ||
226 | static int validate_remote_tracking_branch(char *ref) | |
227 | { | |
228 | return !for_each_remote(check_tracking_branch, ref); | |
229 | } | |
230 | ||
e2b6aa5f | 231 | static const char upstream_not_branch[] = |
1a15d00b | 232 | N_("Cannot setup tracking information; starting point '%s' is not a branch."); |
a5e91c72 | 233 | static const char upstream_missing[] = |
caa2036b JK |
234 | N_("the requested upstream branch '%s' does not exist"); |
235 | static const char upstream_advice[] = | |
236 | N_("\n" | |
237 | "If you are planning on basing your work on an upstream\n" | |
238 | "branch that already exists at the remote, you may need to\n" | |
239 | "run \"git fetch\" to retrieve it.\n" | |
240 | "\n" | |
241 | "If you are planning to push out a new local branch that\n" | |
242 | "will track its remote counterpart, you may want to use\n" | |
243 | "\"git push -u\" to set the upstream config as you push."); | |
e2b6aa5f | 244 | |
4edce172 NTND |
245 | void create_branch(struct repository *r, |
246 | const char *name, const char *start_name, | |
e2bbd0cc | 247 | int force, int clobber_head_ok, int reflog, |
f9a482e6 | 248 | int quiet, enum branch_track track) |
e496c003 | 249 | { |
e496c003 | 250 | struct commit *commit; |
48713bfa | 251 | struct object_id oid; |
3818b258 | 252 | char *real_ref; |
8415d5c7 | 253 | struct strbuf ref = STRBUF_INIT; |
e496c003 | 254 | int forcing = 0; |
4fc50066 IL |
255 | int dont_change_ref = 0; |
256 | int explicit_tracking = 0; | |
257 | ||
258 | if (track == BRANCH_TRACK_EXPLICIT || track == BRANCH_TRACK_OVERRIDE) | |
259 | explicit_tracking = 1; | |
e496c003 | 260 | |
0faff988 | 261 | if ((track == BRANCH_TRACK_OVERRIDE || clobber_head_ok) |
bc1c9c0e JH |
262 | ? validate_branchname(name, &ref) |
263 | : validate_new_branchname(name, &ref, force)) { | |
55c4a673 | 264 | if (!force) |
4fc50066 | 265 | dont_change_ref = 1; |
55c4a673 CI |
266 | else |
267 | forcing = 1; | |
e496c003 DB |
268 | } |
269 | ||
270 | real_ref = NULL; | |
48713bfa | 271 | if (get_oid(start_name, &oid)) { |
caa2036b JK |
272 | if (explicit_tracking) { |
273 | if (advice_set_upstream_failure) { | |
274 | error(_(upstream_missing), start_name); | |
275 | advise(_(upstream_advice)); | |
276 | exit(1); | |
277 | } | |
1a15d00b | 278 | die(_(upstream_missing), start_name); |
caa2036b | 279 | } |
bc554df8 | 280 | die(_("Not a valid object name: '%s'."), start_name); |
a5e91c72 | 281 | } |
e496c003 | 282 | |
cca5fa64 | 283 | switch (dwim_ref(start_name, strlen(start_name), &oid, &real_ref)) { |
e496c003 DB |
284 | case 0: |
285 | /* Not branching from any existing branch */ | |
4fc50066 | 286 | if (explicit_tracking) |
1a15d00b | 287 | die(_(upstream_not_branch), start_name); |
e496c003 DB |
288 | break; |
289 | case 1: | |
21b5b1e8 | 290 | /* Unique completion -- good, only if it is a real branch */ |
59556548 | 291 | if (!starts_with(real_ref, "refs/heads/") && |
41c21f22 | 292 | validate_remote_tracking_branch(real_ref)) { |
21b5b1e8 | 293 | if (explicit_tracking) |
1a15d00b | 294 | die(_(upstream_not_branch), start_name); |
21b5b1e8 JH |
295 | else |
296 | real_ref = NULL; | |
297 | } | |
e496c003 DB |
298 | break; |
299 | default: | |
bc554df8 | 300 | die(_("Ambiguous object name: '%s'."), start_name); |
e496c003 DB |
301 | break; |
302 | } | |
303 | ||
4edce172 | 304 | if ((commit = lookup_commit_reference(r, &oid)) == NULL) |
bc554df8 | 305 | die(_("Not a valid branch point: '%s'."), start_name); |
48713bfa | 306 | oidcpy(&oid, &commit->object.oid); |
e496c003 | 307 | |
d43f990f | 308 | if (reflog) |
341fb286 | 309 | log_all_ref_updates = LOG_REFS_NORMAL; |
d43f990f RS |
310 | |
311 | if (!dont_change_ref) { | |
312 | struct ref_transaction *transaction; | |
313 | struct strbuf err = STRBUF_INIT; | |
cddac452 | 314 | char *msg; |
3818b258 JK |
315 | |
316 | if (forcing) | |
cddac452 | 317 | msg = xstrfmt("branch: Reset to %s", start_name); |
3818b258 | 318 | else |
cddac452 | 319 | msg = xstrfmt("branch: Created from %s", start_name); |
d43f990f RS |
320 | |
321 | transaction = ref_transaction_begin(&err); | |
322 | if (!transaction || | |
1d147bdf | 323 | ref_transaction_update(transaction, ref.buf, |
89f3bbdd | 324 | &oid, forcing ? NULL : &null_oid, |
1d147bdf | 325 | 0, msg, &err) || |
db7516ab | 326 | ref_transaction_commit(transaction, &err)) |
d43f990f RS |
327 | die("%s", err.buf); |
328 | ref_transaction_free(transaction); | |
329 | strbuf_release(&err); | |
cddac452 | 330 | free(msg); |
d43f990f RS |
331 | } |
332 | ||
e496c003 | 333 | if (real_ref && track) |
82a0672f | 334 | setup_tracking(ref.buf + 11, real_ref, track, quiet); |
e496c003 | 335 | |
8415d5c7 | 336 | strbuf_release(&ref); |
9ed36cfa | 337 | free(real_ref); |
e496c003 | 338 | } |
c369e7b8 | 339 | |
4edce172 | 340 | void remove_branch_state(struct repository *r) |
c369e7b8 | 341 | { |
4edce172 NTND |
342 | unlink(git_path_cherry_pick_head(r)); |
343 | unlink(git_path_revert_head(r)); | |
344 | unlink(git_path_merge_head(r)); | |
345 | unlink(git_path_merge_rr(r)); | |
346 | unlink(git_path_merge_msg(r)); | |
347 | unlink(git_path_merge_mode(r)); | |
348 | unlink(git_path_squash_msg(r)); | |
c369e7b8 | 349 | } |
ed89f84b | 350 | |
8d9fdd70 | 351 | void die_if_checked_out(const char *branch, int ignore_current_worktree) |
41af6565 | 352 | { |
d3b9ac07 | 353 | const struct worktree *wt; |
41af6565 | 354 | |
d3b9ac07 | 355 | wt = find_shared_symref("HEAD", branch); |
8d9fdd70 | 356 | if (!wt || (ignore_current_worktree && wt->is_current)) |
d3b9ac07 NTND |
357 | return; |
358 | skip_prefix(branch, "refs/heads/", &branch); | |
359 | die(_("'%s' is already checked out at '%s'"), | |
360 | branch, wt->path); | |
ed89f84b | 361 | } |
70999e9c | 362 | |
39ee4c6c KM |
363 | int replace_each_worktree_head_symref(const char *oldref, const char *newref, |
364 | const char *logmsg) | |
70999e9c KY |
365 | { |
366 | int ret = 0; | |
4fff1ef7 | 367 | struct worktree **worktrees = get_worktrees(0); |
70999e9c KY |
368 | int i; |
369 | ||
370 | for (i = 0; worktrees[i]; i++) { | |
d026a256 NTND |
371 | struct ref_store *refs; |
372 | ||
70999e9c KY |
373 | if (worktrees[i]->is_detached) |
374 | continue; | |
31824d18 NTND |
375 | if (!worktrees[i]->head_ref) |
376 | continue; | |
377 | if (strcmp(oldref, worktrees[i]->head_ref)) | |
70999e9c KY |
378 | continue; |
379 | ||
d026a256 NTND |
380 | refs = get_worktree_ref_store(worktrees[i]); |
381 | if (refs_create_symref(refs, "HEAD", newref, logmsg)) | |
382 | ret = error(_("HEAD of working tree %s is not updated"), | |
383 | worktrees[i]->path); | |
70999e9c KY |
384 | } |
385 | ||
386 | free_worktrees(worktrees); | |
387 | return ret; | |
388 | } |