diff options
Diffstat (limited to 'builtin/branch.c')
| -rw-r--r-- | builtin/branch.c | 1044 |
1 files changed, 1044 insertions, 0 deletions
diff --git a/builtin/branch.c b/builtin/branch.c new file mode 100644 index 0000000000..ff05869949 --- /dev/null +++ b/builtin/branch.c @@ -0,0 +1,1044 @@ +/* + * Builtin "git branch" + * + * Copyright (c) 2006 Kristian Høgsberg <krh@redhat.com> + * Based on git-branch.sh by Junio C Hamano. + */ + +#include "cache.h" +#include "color.h" +#include "refs.h" +#include "commit.h" +#include "builtin.h" +#include "remote.h" +#include "parse-options.h" +#include "branch.h" +#include "diff.h" +#include "revision.h" +#include "string-list.h" +#include "column.h" +#include "utf8.h" +#include "wt-status.h" + +static const char * const builtin_branch_usage[] = { + N_("git branch [<options>] [-r | -a] [--merged | --no-merged]"), + N_("git branch [<options>] [-l] [-f] <branch-name> [<start-point>]"), + N_("git branch [<options>] [-r] (-d | -D) <branch-name>..."), + N_("git branch [<options>] (-m | -M) [<old-branch>] <new-branch>"), + NULL +}; + +#define REF_LOCAL_BRANCH 0x01 +#define REF_REMOTE_BRANCH 0x02 + +static const char *head; +static unsigned char head_sha1[20]; + +static int branch_use_color = -1; +static char branch_colors[][COLOR_MAXLEN] = { + GIT_COLOR_RESET, + GIT_COLOR_NORMAL, /* PLAIN */ + GIT_COLOR_RED, /* REMOTE */ + GIT_COLOR_NORMAL, /* LOCAL */ + GIT_COLOR_GREEN, /* CURRENT */ + GIT_COLOR_BLUE, /* UPSTREAM */ +}; +enum color_branch { + BRANCH_COLOR_RESET = 0, + BRANCH_COLOR_PLAIN = 1, + BRANCH_COLOR_REMOTE = 2, + BRANCH_COLOR_LOCAL = 3, + BRANCH_COLOR_CURRENT = 4, + BRANCH_COLOR_UPSTREAM = 5 +}; + +static enum merge_filter { + NO_FILTER = 0, + SHOW_NOT_MERGED, + SHOW_MERGED +} merge_filter; +static unsigned char merge_filter_ref[20]; + +static struct string_list output = STRING_LIST_INIT_DUP; +static unsigned int colopts; + +static int parse_branch_color_slot(const char *slot) +{ + if (!strcasecmp(slot, "plain")) + return BRANCH_COLOR_PLAIN; + if (!strcasecmp(slot, "reset")) + return BRANCH_COLOR_RESET; + if (!strcasecmp(slot, "remote")) + return BRANCH_COLOR_REMOTE; + if (!strcasecmp(slot, "local")) + return BRANCH_COLOR_LOCAL; + if (!strcasecmp(slot, "current")) + return BRANCH_COLOR_CURRENT; + if (!strcasecmp(slot, "upstream")) + return BRANCH_COLOR_UPSTREAM; + return -1; +} + +static int git_branch_config(const char *var, const char *value, void *cb) +{ + const char *slot_name; + + if (starts_with(var, "column.")) + return git_column_config(var, value, "branch", &colopts); + if (!strcmp(var, "color.branch")) { + branch_use_color = git_config_colorbool(var, value); + return 0; + } + if (skip_prefix(var, "color.branch.", &slot_name)) { + int slot = parse_branch_color_slot(slot_name); + if (slot < 0) + return 0; + if (!value) + return config_error_nonbool(var); + return color_parse(value, branch_colors[slot]); + } + return git_color_default_config(var, value, cb); +} + +static const char *branch_get_color(enum color_branch ix) +{ + if (want_color(branch_use_color)) + return branch_colors[ix]; + return ""; +} + +static int branch_merged(int kind, const char *name, + struct commit *rev, struct commit *head_rev) +{ + /* + * This checks whether the merge bases of branch and HEAD (or + * the other branch this branch builds upon) contains the + * branch, which means that the branch has already been merged + * safely to HEAD (or the other branch). + */ + struct commit *reference_rev = NULL; + const char *reference_name = NULL; + void *reference_name_to_free = NULL; + int merged; + + if (kind == REF_LOCAL_BRANCH) { + struct branch *branch = branch_get(name); + const char *upstream = branch_get_upstream(branch, NULL); + unsigned char sha1[20]; + + if (upstream && + (reference_name = reference_name_to_free = + resolve_refdup(upstream, RESOLVE_REF_READING, + sha1, NULL)) != NULL) + reference_rev = lookup_commit_reference(sha1); + } + if (!reference_rev) + reference_rev = head_rev; + + merged = in_merge_bases(rev, reference_rev); + + /* + * After the safety valve is fully redefined to "check with + * upstream, if any, otherwise with HEAD", we should just + * return the result of the in_merge_bases() above without + * any of the following code, but during the transition period, + * a gentle reminder is in order. + */ + if ((head_rev != reference_rev) && + in_merge_bases(rev, head_rev) != merged) { + if (merged) + warning(_("deleting branch '%s' that has been merged to\n" + " '%s', but not yet merged to HEAD."), + name, reference_name); + else + warning(_("not deleting branch '%s' that is not yet merged to\n" + " '%s', even though it is merged to HEAD."), + name, reference_name); + } + free(reference_name_to_free); + return merged; +} + +static int check_branch_commit(const char *branchname, const char *refname, + const unsigned char *sha1, struct commit *head_rev, + int kinds, int force) +{ + struct commit *rev = lookup_commit_reference(sha1); + if (!rev) { + error(_("Couldn't look up commit object for '%s'"), refname); + return -1; + } + if (!force && !branch_merged(kinds, branchname, rev, head_rev)) { + error(_("The branch '%s' is not fully merged.\n" + "If you are sure you want to delete it, " + "run 'git branch -D %s'."), branchname, branchname); + return -1; + } + return 0; +} + +static void delete_branch_config(const char *branchname) +{ + struct strbuf buf = STRBUF_INIT; + strbuf_addf(&buf, "branch.%s", branchname); + if (git_config_rename_section(buf.buf, NULL) < 0) + warning(_("Update of config-file failed")); + strbuf_release(&buf); +} + +static int delete_branches(int argc, const char **argv, int force, int kinds, + int quiet) +{ + struct commit *head_rev = NULL; + unsigned char sha1[20]; + char *name = NULL; + const char *fmt; + int i; + int ret = 0; + int remote_branch = 0; + struct strbuf bname = STRBUF_INIT; + + switch (kinds) { + case REF_REMOTE_BRANCH: + fmt = "refs/remotes/%s"; + /* For subsequent UI messages */ + remote_branch = 1; + + force = 1; + break; + case REF_LOCAL_BRANCH: + fmt = "refs/heads/%s"; + break; + default: + die(_("cannot use -a with -d")); + } + + 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++, strbuf_release(&bname)) { + const char *target; + int flags = 0; + + strbuf_branchname(&bname, argv[i]); + if (kinds == REF_LOCAL_BRANCH && !strcmp(head, bname.buf)) { + error(_("Cannot delete the branch '%s' " + "which you are currently on."), bname.buf); + ret = 1; + continue; + } + + free(name); + + name = mkpathdup(fmt, bname.buf); + target = resolve_ref_unsafe(name, + RESOLVE_REF_READING + | RESOLVE_REF_NO_RECURSE + | RESOLVE_REF_ALLOW_BAD_NAME, + sha1, &flags); + if (!target) { + error(remote_branch + ? _("remote-tracking branch '%s' not found.") + : _("branch '%s' not found."), bname.buf); + ret = 1; + continue; + } + + if (!(flags & (REF_ISSYMREF|REF_ISBROKEN)) && + check_branch_commit(bname.buf, name, sha1, head_rev, kinds, + force)) { + ret = 1; + continue; + } + + if (delete_ref(name, is_null_sha1(sha1) ? NULL : sha1, + REF_NODEREF)) { + error(remote_branch + ? _("Error deleting remote-tracking branch '%s'") + : _("Error deleting branch '%s'"), + bname.buf); + ret = 1; + continue; + } + if (!quiet) { + printf(remote_branch + ? _("Deleted remote-tracking branch %s (was %s).\n") + : _("Deleted branch %s (was %s).\n"), + bname.buf, + (flags & REF_ISBROKEN) ? "broken" + : (flags & REF_ISSYMREF) ? target + : find_unique_abbrev(sha1, DEFAULT_ABBREV)); + } + delete_branch_config(bname.buf); + } + + free(name); + + return(ret); +} + +struct ref_item { + char *name; + char *dest; + unsigned int kind, width; + struct commit *commit; + int ignore; +}; + +struct ref_list { + struct rev_info revs; + int index, alloc, maxwidth, verbose, abbrev; + struct ref_item *list; + struct commit_list *with_commit; + int kinds; +}; + +static char *resolve_symref(const char *src, const char *prefix) +{ + unsigned char sha1[20]; + int flag; + const char *dst; + + dst = resolve_ref_unsafe(src, 0, sha1, &flag); + if (!(dst && (flag & REF_ISSYMREF))) + return NULL; + if (prefix) + skip_prefix(dst, prefix, &dst); + return xstrdup(dst); +} + +struct append_ref_cb { + struct ref_list *ref_list; + const char **pattern; + int ret; +}; + +static int match_patterns(const char **pattern, const char *refname) +{ + if (!*pattern) + return 1; /* no pattern always matches */ + while (*pattern) { + if (!wildmatch(*pattern, refname, 0, NULL)) + return 1; + pattern++; + } + return 0; +} + +static int append_ref(const char *refname, const struct object_id *oid, int flags, void *cb_data) +{ + struct append_ref_cb *cb = (struct append_ref_cb *)(cb_data); + struct ref_list *ref_list = cb->ref_list; + struct ref_item *newitem; + struct commit *commit; + int kind, i; + const char *prefix, *orig_refname = refname; + + static struct { + int kind; + const char *prefix; + } ref_kind[] = { + { REF_LOCAL_BRANCH, "refs/heads/" }, + { REF_REMOTE_BRANCH, "refs/remotes/" }, + }; + + /* Detect kind */ + for (i = 0; i < ARRAY_SIZE(ref_kind); i++) { + prefix = ref_kind[i].prefix; + if (skip_prefix(refname, prefix, &refname)) { + kind = ref_kind[i].kind; + break; + } + } + if (ARRAY_SIZE(ref_kind) <= i) + return 0; + + /* Don't add types the caller doesn't want */ + if ((kind & ref_list->kinds) == 0) + return 0; + + if (!match_patterns(cb->pattern, refname)) + return 0; + + commit = NULL; + if (ref_list->verbose || ref_list->with_commit || merge_filter != NO_FILTER) { + commit = lookup_commit_reference_gently(oid->hash, 1); + if (!commit) { + cb->ret = error(_("branch '%s' does not point at a commit"), refname); + return 0; + } + + /* Filter with with_commit if specified */ + if (!is_descendant_of(commit, ref_list->with_commit)) + return 0; + + if (merge_filter != NO_FILTER) + add_pending_object(&ref_list->revs, + (struct object *)commit, refname); + } + + ALLOC_GROW(ref_list->list, ref_list->index + 1, ref_list->alloc); + + /* Record the new item */ + newitem = &(ref_list->list[ref_list->index++]); + newitem->name = xstrdup(refname); + newitem->kind = kind; + newitem->commit = commit; + newitem->width = utf8_strwidth(refname); + newitem->dest = resolve_symref(orig_refname, prefix); + newitem->ignore = 0; + /* adjust for "remotes/" */ + if (newitem->kind == REF_REMOTE_BRANCH && + ref_list->kinds != REF_REMOTE_BRANCH) + newitem->width += 8; + if (newitem->width > ref_list->maxwidth) + ref_list->maxwidth = newitem->width; + + return 0; +} + +static void free_ref_list(struct ref_list *ref_list) +{ + int i; + + for (i = 0; i < ref_list->index; i++) { + free(ref_list->list[i].name); + free(ref_list->list[i].dest); + } + free(ref_list->list); +} + +static int ref_cmp(const void *r1, const void *r2) +{ + struct ref_item *c1 = (struct ref_item *)(r1); + struct ref_item *c2 = (struct ref_item *)(r2); + + if (c1->kind != c2->kind) + return c1->kind - c2->kind; + return strcmp(c1->name, c2->name); +} + +static void fill_tracking_info(struct strbuf *stat, const char *branch_name, + int show_upstream_ref) +{ + int ours, theirs; + char *ref = NULL; + struct branch *branch = branch_get(branch_name); + const char *upstream; + struct strbuf fancy = STRBUF_INIT; + int upstream_is_gone = 0; + int added_decoration = 1; + + if (stat_tracking_info(branch, &ours, &theirs, &upstream) < 0) { + if (!upstream) + return; + upstream_is_gone = 1; + } + + if (show_upstream_ref) { + ref = shorten_unambiguous_ref(upstream, 0); + if (want_color(branch_use_color)) + strbuf_addf(&fancy, "%s%s%s", + branch_get_color(BRANCH_COLOR_UPSTREAM), + ref, branch_get_color(BRANCH_COLOR_RESET)); + else + strbuf_addstr(&fancy, ref); + } + + if (upstream_is_gone) { + if (show_upstream_ref) + strbuf_addf(stat, _("[%s: gone]"), fancy.buf); + else + added_decoration = 0; + } else if (!ours && !theirs) { + if (show_upstream_ref) + strbuf_addf(stat, _("[%s]"), fancy.buf); + else + added_decoration = 0; + } else if (!ours) { + if (show_upstream_ref) + strbuf_addf(stat, _("[%s: behind %d]"), fancy.buf, theirs); + else + strbuf_addf(stat, _("[behind %d]"), theirs); + + } else if (!theirs) { + if (show_upstream_ref) + strbuf_addf(stat, _("[%s: ahead %d]"), fancy.buf, ours); + else + strbuf_addf(stat, _("[ahead %d]"), ours); + } else { + if (show_upstream_ref) + strbuf_addf(stat, _("[%s: ahead %d, behind %d]"), + fancy.buf, ours, theirs); + else + strbuf_addf(stat, _("[ahead %d, behind %d]"), + ours, theirs); + } + strbuf_release(&fancy); + if (added_decoration) + strbuf_addch(stat, ' '); + free(ref); +} + +static void add_verbose_info(struct strbuf *out, struct ref_item *item, + int verbose, int abbrev) +{ + struct strbuf subject = STRBUF_INIT, stat = STRBUF_INIT; + const char *sub = _(" **** invalid ref ****"); + struct commit *commit = item->commit; + + if (!parse_commit(commit)) { + pp_commit_easy(CMIT_FMT_ONELINE, commit, &subject); + sub = subject.buf; + } + + if (item->kind == REF_LOCAL_BRANCH) + fill_tracking_info(&stat, item->name, verbose > 1); + + strbuf_addf(out, " %s %s%s", + find_unique_abbrev(item->commit->object.sha1, abbrev), + stat.buf, sub); + strbuf_release(&stat); + strbuf_release(&subject); +} + +static void print_ref_item(struct ref_item *item, int maxwidth, int verbose, + int abbrev, int current, char *prefix) +{ + char c; + int color; + struct strbuf out = STRBUF_INIT, name = STRBUF_INIT; + + if (item->ignore) + return; + + switch (item->kind) { + case REF_LOCAL_BRANCH: + color = BRANCH_COLOR_LOCAL; + break; + case REF_REMOTE_BRANCH: + color = BRANCH_COLOR_REMOTE; + break; + default: + color = BRANCH_COLOR_PLAIN; + break; + } + + c = ' '; + if (current) { + c = '*'; + color = BRANCH_COLOR_CURRENT; + } + + strbuf_addf(&name, "%s%s", prefix, item->name); + if (verbose) { + int utf8_compensation = strlen(name.buf) - utf8_strwidth(name.buf); + strbuf_addf(&out, "%c %s%-*s%s", c, branch_get_color(color), + maxwidth + utf8_compensation, name.buf, + branch_get_color(BRANCH_COLOR_RESET)); + } else + strbuf_addf(&out, "%c %s%s%s", c, branch_get_color(color), + name.buf, branch_get_color(BRANCH_COLOR_RESET)); + + if (item->dest) + strbuf_addf(&out, " -> %s", item->dest); + else if (verbose) + /* " f7c0c00 [ahead 58, behind 197] vcs-svn: drop obj_pool.h" */ + add_verbose_info(&out, item, verbose, abbrev); + if (column_active(colopts)) { + assert(!verbose && "--column and --verbose are incompatible"); + string_list_append(&output, out.buf); + } else { + printf("%s\n", out.buf); + } + strbuf_release(&name); + strbuf_release(&out); +} + +static int calc_maxwidth(struct ref_list *refs) +{ + int i, w = 0; + for (i = 0; i < refs->index; i++) { + if (refs->list[i].ignore) + continue; + if (refs->list[i].width > w) + w = refs->list[i].width; + } + return w; +} + +static char *get_head_description(void) +{ + struct strbuf desc = STRBUF_INIT; + struct wt_status_state state; + memset(&state, 0, sizeof(state)); + wt_status_get_state(&state, 1); + if (state.rebase_in_progress || + state.rebase_interactive_in_progress) + strbuf_addf(&desc, _("(no branch, rebasing %s)"), + state.branch); + else if (state.bisect_in_progress) + strbuf_addf(&desc, _("(no branch, bisect started on %s)"), + state.branch); + else if (state.detached_from) { + /* TRANSLATORS: make sure these match _("HEAD detached at ") + and _("HEAD detached from ") in wt-status.c */ + if (state.detached_at) + strbuf_addf(&desc, _("(HEAD detached at %s)"), + state.detached_from); + else + strbuf_addf(&desc, _("(HEAD detached from %s)"), + state.detached_from); + } + else + strbuf_addstr(&desc, _("(no branch)")); + free(state.branch); + free(state.onto); + free(state.detached_from); + return strbuf_detach(&desc, NULL); +} + +static void show_detached(struct ref_list *ref_list) +{ + struct commit *head_commit = lookup_commit_reference_gently(head_sha1, 1); + + if (head_commit && is_descendant_of(head_commit, ref_list->with_commit)) { + struct ref_item item; + item.name = get_head_description(); + item.width = utf8_strwidth(item.name); + item.kind = REF_LOCAL_BRANCH; + item.dest = NULL; + item.commit = head_commit; + item.ignore = 0; + if (item.width > ref_list->maxwidth) + ref_list->maxwidth = item.width; + print_ref_item(&item, ref_list->maxwidth, ref_list->verbose, ref_list->abbrev, 1, ""); + free(item.name); + } +} + +static int print_ref_list(int kinds, int detached, int verbose, int abbrev, struct commit_list *with_commit, const char **pattern) +{ + int i; + struct append_ref_cb cb; + struct ref_list ref_list; + + memset(&ref_list, 0, sizeof(ref_list)); + ref_list.kinds = kinds; + ref_list.verbose = verbose; + ref_list.abbrev = abbrev; + ref_list.with_commit = with_commit; + if (merge_filter != NO_FILTER) + init_revisions(&ref_list.revs, NULL); + cb.ref_list = &ref_list; + cb.pattern = pattern; + cb.ret = 0; + for_each_rawref(append_ref, &cb); + if (merge_filter != NO_FILTER) { + struct commit *filter; + filter = lookup_commit_reference_gently(merge_filter_ref, 0); + if (!filter) + die(_("object '%s' does not point to a commit"), + sha1_to_hex(merge_filter_ref)); + + filter->object.flags |= UNINTERESTING; + add_pending_object(&ref_list.revs, + (struct object *) filter, ""); + ref_list.revs.limited = 1; + + if (prepare_revision_walk(&ref_list.revs)) + die(_("revision walk setup failed")); + + for (i = 0; i < ref_list.index; i++) { + struct ref_item *item = &ref_list.list[i]; + struct commit *commit = item->commit; + int is_merged = !!(commit->object.flags & UNINTERESTING); + item->ignore = is_merged != (merge_filter == SHOW_MERGED); + } + + for (i = 0; i < ref_list.index; i++) { + struct ref_item *item = &ref_list.list[i]; + clear_commit_marks(item->commit, ALL_REV_FLAGS); + } + clear_commit_marks(filter, ALL_REV_FLAGS); + + if (verbose) + ref_list.maxwidth = calc_maxwidth(&ref_list); + } + + qsort(ref_list.list, ref_list.index, sizeof(struct ref_item), ref_cmp); + + detached = (detached && (kinds & REF_LOCAL_BRANCH)); + if (detached && match_patterns(pattern, "HEAD")) + show_detached(&ref_list); + + for (i = 0; i < ref_list.index; i++) { + int current = !detached && + (ref_list.list[i].kind == REF_LOCAL_BRANCH) && + !strcmp(ref_list.list[i].name, head); + char *prefix = (kinds != REF_REMOTE_BRANCH && + ref_list.list[i].kind == REF_REMOTE_BRANCH) + ? "remotes/" : ""; + print_ref_item(&ref_list.list[i], ref_list.maxwidth, verbose, + abbrev, current, prefix); + } + + free_ref_list(&ref_list); + + if (cb.ret) + error(_("some refs could not be read")); + + return cb.ret; +} + +static void rename_branch(const char *oldname, const char *newname, int force) +{ + struct strbuf oldref = STRBUF_INIT, newref = STRBUF_INIT, logmsg = STRBUF_INIT; + struct strbuf oldsection = STRBUF_INIT, newsection = STRBUF_INIT; + int recovery = 0; + int clobber_head_ok; + + if (!oldname) + die(_("cannot rename the current branch while not on any.")); + + if (strbuf_check_branch_ref(&oldref, oldname)) { + /* + * Bad name --- this could be an attempt to rename a + * ref that we used to allow to be created by accident. + */ + if (ref_exists(oldref.buf)) + recovery = 1; + else + die(_("Invalid branch name: '%s'"), oldname); + } + + /* + * A command like "git branch -M currentbranch currentbranch" cannot + * cause the worktree to become inconsistent with HEAD, so allow it. + */ + clobber_head_ok = !strcmp(oldname, newname); + + validate_new_branchname(newname, &newref, force, clobber_head_ok); + + strbuf_addf(&logmsg, "Branch: renamed %s to %s", + oldref.buf, newref.buf); + + if (rename_ref(oldref.buf, newref.buf, logmsg.buf)) + die(_("Branch rename failed")); + strbuf_release(&logmsg); + + if (recovery) + warning(_("Renamed a misnamed branch '%s' away"), oldref.buf + 11); + + /* no need to pass logmsg here as HEAD didn't really move */ + if (!strcmp(oldname, head) && create_symref("HEAD", newref.buf, NULL)) + die(_("Branch renamed to %s, but HEAD is not updated!"), newname); + + 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_merge_filter(const struct option *opt, const char *arg, int unset) +{ + merge_filter = ((opt->long_name[0] == 'n') + ? SHOW_NOT_MERGED + : SHOW_MERGED); + if (unset) + merge_filter = SHOW_NOT_MERGED; /* b/c for --no-merged */ + if (!arg) + arg = "HEAD"; + if (get_sha1(arg, merge_filter_ref)) + die(_("malformed object name %s"), arg); + return 0; +} + +static const char edit_description[] = "BRANCH_DESCRIPTION"; + +static int edit_branch_description(const char *branch_name) +{ + int status; + struct strbuf buf = STRBUF_INIT; + struct strbuf name = STRBUF_INIT; + + read_branch_desc(&buf, branch_name); + if (!buf.len || buf.buf[buf.len-1] != '\n') + strbuf_addch(&buf, '\n'); + strbuf_commented_addf(&buf, + "Please edit the description for the branch\n" + " %s\n" + "Lines starting with '%c' will be stripped.\n", + branch_name, comment_line_char); + if (write_file_gently(git_path(edit_description), "%s", buf.buf)) { + strbuf_release(&buf); + return error(_("could not write branch description template: %s"), + strerror(errno)); + } + strbuf_reset(&buf); + if (launch_editor(git_path(edit_description), &buf, NULL)) { + strbuf_release(&buf); + return -1; + } + stripspace(&buf, 1); + + strbuf_addf(&name, "branch.%s.description", branch_name); + status = git_config_set(name.buf, buf.len ? buf.buf : NULL); + strbuf_release(&name); + strbuf_release(&buf); + + return status; +} + +int cmd_branch(int argc, const char **argv, const char *prefix) +{ + int delete = 0, rename = 0, force = 0, list = 0; + int verbose = 0, abbrev = -1, detached = 0; + int reflog = 0, edit_description = 0; + int quiet = 0, unset_upstream = 0; + const char *new_upstream = NULL; + enum branch_track track; + int kinds = REF_LOCAL_BRANCH; + struct commit_list *with_commit = NULL; + + struct option options[] = { + OPT_GROUP(N_("Generic options")), + OPT__VERBOSE(&verbose, + N_("show hash and subject, give twice for upstream branch")), + OPT__QUIET(&quiet, N_("suppress informational messages")), + OPT_SET_INT('t', "track", &track, N_("set up tracking mode (see git-pull(1))"), + BRANCH_TRACK_EXPLICIT), + OPT_SET_INT( 0, "set-upstream", &track, N_("change upstream info"), + BRANCH_TRACK_OVERRIDE), + OPT_STRING('u', "set-upstream-to", &new_upstream, "upstream", "change the upstream info"), + OPT_BOOL(0, "unset-upstream", &unset_upstream, "Unset the upstream info"), + OPT__COLOR(&branch_use_color, N_("use colored output")), + OPT_SET_INT('r', "remotes", &kinds, N_("act on remote-tracking branches"), + REF_REMOTE_BRANCH), + { + OPTION_CALLBACK, 0, "contains", &with_commit, N_("commit"), + N_("print only branches that contain the commit"), + PARSE_OPT_LASTARG_DEFAULT, + parse_opt_with_commit, (intptr_t)"HEAD", + }, + { + OPTION_CALLBACK, 0, "with", &with_commit, N_("commit"), + N_("print only branches that contain the commit"), + PARSE_OPT_HIDDEN | PARSE_OPT_LASTARG_DEFAULT, + parse_opt_with_commit, (intptr_t) "HEAD", + }, + OPT__ABBREV(&abbrev), + + OPT_GROUP(N_("Specific git-branch actions:")), + OPT_SET_INT('a', "all", &kinds, N_("list both remote-tracking and local branches"), + REF_REMOTE_BRANCH | REF_LOCAL_BRANCH), + OPT_BIT('d', "delete", &delete, N_("delete fully merged branch"), 1), + OPT_BIT('D', NULL, &delete, N_("delete branch (even if not merged)"), 2), + OPT_BIT('m', "move", &rename, N_("move/rename a branch and its reflog"), 1), + OPT_BIT('M', NULL, &rename, N_("move/rename a branch, even if target exists"), 2), + OPT_BOOL(0, "list", &list, N_("list branch names")), + OPT_BOOL('l', "create-reflog", &reflog, N_("create the branch's reflog")), + OPT_BOOL(0, "edit-description", &edit_description, + N_("edit the description for the branch")), + OPT__FORCE(&force, N_("force creation, move/rename, deletion")), + { + OPTION_CALLBACK, 0, "no-merged", &merge_filter_ref, + N_("commit"), N_("print only not merged branches"), + PARSE_OPT_LASTARG_DEFAULT | PARSE_OPT_NONEG, + opt_parse_merge_filter, (intptr_t) "HEAD", + }, + { + OPTION_CALLBACK, 0, "merged", &merge_filter_ref, + N_("commit"), N_("print only merged branches"), + PARSE_OPT_LASTARG_DEFAULT | PARSE_OPT_NONEG, + opt_parse_merge_filter, (intptr_t) "HEAD", + }, + OPT_COLUMN(0, "column", &colopts, N_("list branches in columns")), + OPT_END(), + }; + + if (argc == 2 && !strcmp(argv[1], "-h")) + usage_with_options(builtin_branch_usage, options); + + git_config(git_branch_config, NULL); + + track = git_branch_track; + + head = resolve_refdup("HEAD", 0, head_sha1, NULL); + if (!head) + die(_("Failed to resolve HEAD as a valid ref.")); + if (!strcmp(head, "HEAD")) + detached = 1; + else if (!skip_prefix(head, "refs/heads/", &head)) + die(_("HEAD not found below refs/heads!")); + hashcpy(merge_filter_ref, head_sha1); + + + argc = parse_options(argc, argv, prefix, options, builtin_branch_usage, + 0); + + if (!delete && !rename && !edit_description && !new_upstream && !unset_upstream && argc == 0) + list = 1; + + if (with_commit || merge_filter != NO_FILTER) + list = 1; + + if (!!delete + !!rename + !!new_upstream + + list + unset_upstream > 1) + usage_with_options(builtin_branch_usage, options); + + if (abbrev == -1) + abbrev = DEFAULT_ABBREV; + finalize_colopts(&colopts, -1); + if (verbose) { + if (explicitly_enable_column(colopts)) + die(_("--column and --verbose are incompatible")); + colopts = 0; + } + + if (force) { + delete *= 2; + rename *= 2; + } + + if (delete) { + if (!argc) + die(_("branch name required")); + return delete_branches(argc, argv, delete > 1, kinds, quiet); + } else if (list) { + int ret = print_ref_list(kinds, detached, verbose, abbrev, + with_commit, argv); + print_columns(&output, colopts, NULL); + string_list_clear(&output, 0); + return ret; + } + else if (edit_description) { + const char *branch_name; + struct strbuf branch_ref = STRBUF_INIT; + + if (!argc) { + if (detached) + die(_("Cannot give description to detached HEAD")); + branch_name = head; + } else if (argc == 1) + branch_name = argv[0]; + else + die(_("cannot edit description of more than one branch")); + + strbuf_addf(&branch_ref, "refs/heads/%s", branch_name); + if (!ref_exists(branch_ref.buf)) { + strbuf_release(&branch_ref); + + if (!argc) + return error(_("No commit on branch '%s' yet."), + branch_name); + else + return error(_("No branch named '%s'."), + branch_name); + } + strbuf_release(&branch_ref); + + if (edit_branch_description(branch_name)) + return 1; + } else if (rename) { + if (!argc) + die(_("branch name required")); + else if (argc == 1) + rename_branch(head, argv[0], rename > 1); + else if (argc == 2) + rename_branch(argv[0], argv[1], rename > 1); + else + die(_("too many branches for a rename operation")); + } else if (new_upstream) { + struct branch *branch = branch_get(argv[0]); + + if (argc > 1) + die(_("too many branches to set new upstream")); + + if (!branch) { + if (!argc || !strcmp(argv[0], "HEAD")) + die(_("could not set upstream of HEAD to %s when " + "it does not point to any branch."), + new_upstream); + die(_("no such branch '%s'"), argv[0]); + } + + if (!ref_exists(branch->refname)) + die(_("branch '%s' does not exist"), branch->name); + + /* + * create_branch takes care of setting up the tracking + * info and making sure new_upstream is correct + */ + create_branch(head, branch->name, new_upstream, 0, 0, 0, quiet, BRANCH_TRACK_OVERRIDE); + } else if (unset_upstream) { + struct branch *branch = branch_get(argv[0]); + struct strbuf buf = STRBUF_INIT; + + if (argc > 1) + die(_("too many branches to unset upstream")); + + if (!branch) { + if (!argc || !strcmp(argv[0], "HEAD")) + die(_("could not unset upstream of HEAD when " + "it does not point to any branch.")); + die(_("no such branch '%s'"), argv[0]); + } + + if (!branch_has_merge_config(branch)) + die(_("Branch '%s' has no upstream information"), branch->name); + + strbuf_addf(&buf, "branch.%s.remote", branch->name); + git_config_set_multivar(buf.buf, NULL, NULL, 1); + strbuf_reset(&buf); + strbuf_addf(&buf, "branch.%s.merge", branch->name); + git_config_set_multivar(buf.buf, NULL, NULL, 1); + strbuf_release(&buf); + } else if (argc > 0 && argc <= 2) { + struct branch *branch = branch_get(argv[0]); + int branch_existed = 0, remote_tracking = 0; + struct strbuf buf = STRBUF_INIT; + + if (!strcmp(argv[0], "HEAD")) + die(_("it does not make sense to create 'HEAD' manually")); + + if (!branch) + die(_("no such branch '%s'"), argv[0]); + + if (kinds != REF_LOCAL_BRANCH) + die(_("-a and -r options to 'git branch' do not make sense with a branch name")); + + if (track == BRANCH_TRACK_OVERRIDE) + fprintf(stderr, _("The --set-upstream flag is deprecated and will be removed. Consider using --track or --set-upstream-to\n")); + + strbuf_addf(&buf, "refs/remotes/%s", branch->name); + remote_tracking = ref_exists(buf.buf); + strbuf_release(&buf); + + branch_existed = ref_exists(branch->refname); + create_branch(head, argv[0], (argc == 2) ? argv[1] : head, + force, reflog, 0, quiet, track); + + /* + * We only show the instructions if the user gave us + * one branch which doesn't exist locally, but is the + * name of a remote-tracking branch. + */ + if (argc == 1 && track == BRANCH_TRACK_OVERRIDE && + !branch_existed && remote_tracking) { + fprintf(stderr, _("\nIf you wanted to make '%s' track '%s', do this:\n\n"), head, branch->name); + fprintf(stderr, _(" git branch -d %s\n"), branch->name); + fprintf(stderr, _(" git branch --set-upstream-to %s\n"), branch->name); + } + + } else + usage_with_options(builtin_branch_usage, options); + + return 0; +} |