/* * 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" #include "ref-filter.h" #include "worktree.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>"), N_("git branch [<options>] [-r | -a] [--points-at]"), NULL }; 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 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 == FILTER_REFS_BRANCHES) { 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; unsigned allowed_interpret; switch (kinds) { case FILTER_REFS_REMOTES: fmt = "refs/remotes/%s"; /* For subsequent UI messages */ remote_branch = 1; allowed_interpret = INTERPRET_BRANCH_REMOTE; force = 1; break; case FILTER_REFS_BRANCHES: fmt = "refs/heads/%s"; allowed_interpret = INTERPRET_BRANCH_LOCAL; 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)) { char *target = NULL; int flags = 0; strbuf_branchname(&bname, argv[i], allowed_interpret); free(name); name = mkpathdup(fmt, bname.buf); if (kinds == FILTER_REFS_BRANCHES) { const struct worktree *wt = find_shared_symref("HEAD", name); if (wt) { error(_("Cannot delete branch '%s' " "checked out at '%s'"), bname.buf, wt->path); ret = 1; continue; } } target = resolve_refdup(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; goto next; } 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; goto next; } 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); next: free(target); } free(name); return(ret); } 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_array_item *item, struct ref_filter *filter, const char *refname) { 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 == FILTER_REFS_BRANCHES) fill_tracking_info(&stat, refname, filter->verbose > 1); strbuf_addf(out, " %s %s%s", find_unique_abbrev(item->commit->object.oid.hash, filter->abbrev), stat.buf, sub); strbuf_release(&stat); strbuf_release(&subject); } 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) { if (state.detached_at) /* TRANSLATORS: make sure this matches "HEAD detached at " in wt-status.c */ strbuf_addf(&desc, _("(HEAD detached at %s)"), state.detached_from); else /* TRANSLATORS: make sure this matches "HEAD detached from " in wt-status.c */ 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 format_and_print_ref_item(struct ref_array_item *item, int maxwidth, struct ref_filter *filter, const char *remote_prefix) { char c; int current = 0; int color; struct strbuf out = STRBUF_INIT, name = STRBUF_INIT; const char *prefix_to_show = ""; const char *prefix_to_skip = NULL; const char *desc = item->refname; char *to_free = NULL; switch (item->kind) { case FILTER_REFS_BRANCHES: prefix_to_skip = "refs/heads/"; skip_prefix(desc, prefix_to_skip, &desc); if (!filter->detached && !strcmp(desc, head)) current = 1; else color = BRANCH_COLOR_LOCAL; break; case FILTER_REFS_REMOTES: prefix_to_skip = "refs/remotes/"; skip_prefix(desc, prefix_to_skip, &desc); color = BRANCH_COLOR_REMOTE; prefix_to_show = remote_prefix; break; case FILTER_REFS_DETACHED_HEAD: desc = to_free = get_head_description(); current = 1; break; default: color = BRANCH_COLOR_PLAIN; break; } c = ' '; if (current) { c = '*'; color = BRANCH_COLOR_CURRENT; } strbuf_addf(&name, "%s%s", prefix_to_show, desc); if (filter->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->symref) { const char *symref = item->symref; if (prefix_to_skip) skip_prefix(symref, prefix_to_skip, &symref); strbuf_addf(&out, " -> %s", symref); } else if (filter->verbose) /* " f7c0c00 [ahead 58, behind 197] vcs-svn: drop obj_pool.h" */ add_verbose_info(&out, item, filter, desc); if (column_active(colopts)) { assert(!filter->verbose && "--column and --verbose are incompatible"); string_list_append(&output, out.buf); } else { printf("%s\n", out.buf); } strbuf_release(&name); strbuf_release(&out); free(to_free); } static int calc_maxwidth(struct ref_array *refs, int remote_bonus) { int i, max = 0; for (i = 0; i < refs->nr; i++) { struct ref_array_item *it = refs->items[i]; const char *desc = it->refname; int w; skip_prefix(it->refname, "refs/heads/", &desc); skip_prefix(it->refname, "refs/remotes/", &desc); w = utf8_strwidth(desc); if (it->kind == FILTER_REFS_REMOTES) w += remote_bonus; if (w > max) max = w; } return max; } static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sorting) { int i; struct ref_array array; int maxwidth = 0; const char *remote_prefix = ""; /* * If we are listing more than just remote branches, * then remote branches will have a "remotes/" prefix. * We need to account for this in the width. */ if (filter->kind != FILTER_REFS_REMOTES) remote_prefix = "remotes/"; memset(&array, 0, sizeof(array)); verify_ref_format("%(refname)%(symref)"); filter_refs(&array, filter, filter->kind | FILTER_REFS_INCLUDE_BROKEN); if (filter->verbose) maxwidth = calc_maxwidth(&array, strlen(remote_prefix)); ref_array_sort(sorting, &array); for (i = 0; i < array.nr; i++) format_and_print_ref_item(array.items[i], maxwidth, filter, remote_prefix); ref_array_clear(&array); } static void reject_rebase_or_bisect_branch(const char *target) { struct worktree **worktrees = get_worktrees(0); int i; for (i = 0; worktrees[i]; i++) { struct worktree *wt = worktrees[i]; if (!wt->is_detached) continue; if (is_worktree_being_rebased(wt, target)) die(_("Branch %s is being rebased at %s"), target, wt->path); if (is_worktree_being_bisected(wt, target)) die(_("Branch %s is being bisected at %s"), target, wt->path); } free_worktrees(worktrees); } 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); reject_rebase_or_bisect_branch(oldref.buf); 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); if (replace_each_worktree_head_symref(oldref.buf, newref.buf)) 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 const char edit_description[] = "BRANCH_DESCRIPTION"; static int edit_branch_description(const char *branch_name) { 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); write_file_buf(git_path(edit_description), buf.buf, buf.len); strbuf_reset(&buf); if (launch_editor(git_path(edit_description), &buf, NULL)) { strbuf_release(&buf); return -1; } strbuf_stripspace(&buf, 1); strbuf_addf(&name, "branch.%s.description", branch_name); git_config_set(name.buf, buf.len ? buf.buf : NULL); strbuf_release(&name); strbuf_release(&buf); return 0; } int cmd_branch(int argc, const char **argv, const char *prefix) { int delete = 0, rename = 0, force = 0, list = 0; int reflog = 0, edit_description = 0; int quiet = 0, unset_upstream = 0; const char *new_upstream = NULL; enum branch_track track; struct ref_filter filter; int icase = 0; static struct ref_sorting *sorting = NULL, **sorting_tail = &sorting; struct option options[] = { OPT_GROUP(N_("Generic options")), OPT__VERBOSE(&filter.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, N_("upstream"), N_("change the upstream info")), OPT_BOOL(0, "unset-upstream", &unset_upstream, N_("Unset the upstream info")), OPT__COLOR(&branch_use_color, N_("use colored output")), OPT_SET_INT('r', "remotes", &filter.kind, N_("act on remote-tracking branches"), FILTER_REFS_REMOTES), OPT_CONTAINS(&filter.with_commit, N_("print only branches that contain the commit")), OPT_WITH(&filter.with_commit, N_("print only branches that contain the commit")), OPT__ABBREV(&filter.abbrev), OPT_GROUP(N_("Specific git-branch actions:")), OPT_SET_INT('a', "all", &filter.kind, N_("list both remote-tracking and local branches"), FILTER_REFS_REMOTES | FILTER_REFS_BRANCHES), 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")), OPT_MERGED(&filter, N_("print only branches that are merged")), OPT_NO_MERGED(&filter, N_("print only branches that are not merged")), OPT_COLUMN(0, "column", &colopts, N_("list branches in columns")), OPT_CALLBACK(0 , "sort", sorting_tail, N_("key"), N_("field name to sort on"), &parse_opt_ref_sorting), { OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"), N_("print only branches of the object"), 0, parse_opt_object_name }, OPT_BOOL('i', "ignore-case", &icase, N_("sorting and filtering are case insensitive")), OPT_END(), }; memset(&filter, 0, sizeof(filter)); filter.kind = FILTER_REFS_BRANCHES; filter.abbrev = -1; 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")) filter.detached = 1; else if (!skip_prefix(head, "refs/heads/", &head)) die(_("HEAD not found below refs/heads!")); 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 (filter.with_commit || filter.merge != REF_FILTER_MERGED_NONE || filter.points_at.nr) list = 1; if (!!delete + !!rename + !!new_upstream + list + unset_upstream > 1) usage_with_options(builtin_branch_usage, options); if (filter.abbrev == -1) filter.abbrev = DEFAULT_ABBREV; filter.ignore_case = icase; finalize_colopts(&colopts, -1); if (filter.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, filter.kind, quiet); } else if (list) { /* git branch --local also shows HEAD when it is detached */ if ((filter.kind & FILTER_REFS_BRANCHES) && filter.detached) filter.kind |= FILTER_REFS_DETACHED_HEAD; filter.name_patterns = argv; /* * If no sorting parameter is given then we default to sorting * by 'refname'. This would give us an alphabetically sorted * array with the 'HEAD' ref at the beginning followed by * local branches 'refs/heads/...' and finally remote-tacking * branches 'refs/remotes/...'. */ if (!sorting) sorting = ref_default_sorting(); sorting->ignore_case = icase; print_ref_list(&filter, sorting); print_columns(&output, colopts, NULL); string_list_clear(&output, 0); return 0; } else if (edit_description) { const char *branch_name; struct strbuf branch_ref = STRBUF_INIT; if (!argc) { if (filter.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(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 (filter.kind != FILTER_REFS_BRANCHES) 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(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; }