X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=builtin%2Fcheckout.c;h=7250e5c23cee7deda557c16945373b59d99424ee;hb=633142d86874ee8ce79a23ee4346f32e6271faad;hp=88b1f43e05e64f0e8dcd6dd0461bbebd6fab1e25;hpb=e5498e8a9f9a596ecff78426bbf904626cd7863a;p=git.git diff --git a/builtin/checkout.c b/builtin/checkout.c index 88b1f43e0..7250e5c23 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -32,7 +32,12 @@ struct checkout_opts { int writeout_stage; int writeout_error; + /* not set by parse_options */ + int branch_exists; + const char *new_branch; + const char *new_branch_force; + const char *new_orphan_branch; int new_branch_log; enum branch_track track; }; @@ -278,7 +283,6 @@ static void show_local_changes(struct object *head) struct rev_info rev; /* I think we want full paths, even if we're in a subdirectory. */ init_revisions(&rev, NULL); - rev.abbrev = 0; rev.diffopt.output_format |= DIFF_FORMAT_NAME_STATUS; if (diff_setup_done(&rev.diffopt) < 0) die("diff_setup_done failed"); @@ -372,7 +376,7 @@ static int merge_working_tree(struct checkout_opts *opts, topts.src_index = &the_index; topts.dst_index = &the_index; - topts.msgs.not_uptodate_file = "You have local changes to '%s'; cannot switch branches."; + set_porcelain_error_msgs(topts.msgs, "checkout"); refresh_cache(REFRESH_QUIET); @@ -391,6 +395,7 @@ static int merge_working_tree(struct checkout_opts *opts, topts.dir = xcalloc(1, sizeof(*topts.dir)); topts.dir->flags |= DIR_SHOW_IGNORED; topts.dir->exclude_per_dir = ".gitignore"; + topts.show_all_errors = 1; tree = parse_tree_indirect(old->commit ? old->commit->object.sha1 : (unsigned char *)EMPTY_TREE_SHA1_BIN); @@ -492,8 +497,27 @@ static void update_refs_for_switch(struct checkout_opts *opts, struct strbuf msg = STRBUF_INIT; const char *old_desc; if (opts->new_branch) { - create_branch(old->name, opts->new_branch, new->name, 0, - opts->new_branch_log, opts->track); + if (opts->new_orphan_branch) { + if (opts->new_branch_log && !log_all_ref_updates) { + int temp; + char log_file[PATH_MAX]; + char *ref_name = mkpath("refs/heads/%s", opts->new_orphan_branch); + + temp = log_all_ref_updates; + log_all_ref_updates = 1; + if (log_ref_setup(ref_name, log_file, sizeof(log_file))) { + fprintf(stderr, "Can not do reflog for '%s'\n", + opts->new_orphan_branch); + log_all_ref_updates = temp; + return; + } + log_all_ref_updates = temp; + } + } + else + create_branch(old->name, opts->new_branch, new->name, + opts->new_branch_force ? 1 : 0, + opts->new_branch_log, opts->track); new->name = opts->new_branch; setup_branch_path(new); } @@ -510,11 +534,22 @@ static void update_refs_for_switch(struct checkout_opts *opts, if (old->path && !strcmp(new->path, old->path)) fprintf(stderr, "Already on '%s'\n", new->name); - else + else if (opts->new_branch) fprintf(stderr, "Switched to%s branch '%s'\n", - opts->new_branch ? " a new" : "", + opts->branch_exists ? " and reset" : " a new", + new->name); + else + fprintf(stderr, "Switched to branch '%s'\n", new->name); } + if (old->path && old->name) { + char log_file[PATH_MAX], ref_file[PATH_MAX]; + + git_snpath(log_file, sizeof(log_file), "logs/%s", old->path); + git_snpath(ref_file, sizeof(ref_file), "%s", old->path); + if (!file_exists(ref_file) && file_exists(log_file)) + remove_path(log_file); + } } else if (strcmp(new->name, "HEAD")) { update_ref(msg.buf, "HEAD", new->commit->object.sha1, NULL, REF_NODEREF, DIE_ON_ERR); @@ -609,7 +644,8 @@ static int check_tracking_name(const char *refname, const unsigned char *sha1, static const char *unique_tracking_name(const char *name) { - struct tracking_name_data cb_data = { name, NULL, 1 }; + struct tracking_name_data cb_data = { NULL, NULL, 1 }; + cb_data.name = name; for_each_ref(check_tracking_name, &cb_data); if (cb_data.unique) return cb_data.remote; @@ -629,10 +665,14 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) int dwim_new_local_branch = 1; struct option options[] = { OPT__QUIET(&opts.quiet), - OPT_STRING('b', NULL, &opts.new_branch, "new branch", "branch"), + OPT_STRING('b', NULL, &opts.new_branch, "branch", + "create and checkout a new branch"), + OPT_STRING('B', NULL, &opts.new_branch_force, "branch", + "create/reset and checkout a branch"), OPT_BOOLEAN('l', NULL, &opts.new_branch_log, "log for new branch"), OPT_SET_INT('t', "track", &opts.track, "track", BRANCH_TRACK_EXPLICIT), + OPT_STRING(0, "orphan", &opts.new_orphan_branch, "new branch", "new unparented branch"), OPT_SET_INT('2', "ours", &opts.writeout_stage, "stage", 2), OPT_SET_INT('3', "theirs", &opts.writeout_stage, "stage", @@ -659,6 +699,14 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) argc = parse_options(argc, argv, prefix, options, checkout_usage, PARSE_OPT_KEEP_DASHDASH); + /* we can assume from now on new_branch = !new_branch_force */ + if (opts.new_branch && opts.new_branch_force) + die("-B cannot be used with -b"); + + /* copy -B over to -b, so that we can just check the latter */ + if (opts.new_branch_force) + opts.new_branch = opts.new_branch_force; + if (patch_mode && (opts.track > 0 || opts.new_branch || opts.new_branch_log || opts.merge || opts.force)) die ("--patch is incompatible with all other options"); @@ -678,6 +726,14 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) opts.new_branch = argv0 + 1; } + if (opts.new_orphan_branch) { + if (opts.new_branch) + die("--orphan and -b|-B are mutually exclusive"); + if (opts.track > 0) + die("--orphan cannot be used with -t"); + opts.new_branch = opts.new_orphan_branch; + } + if (conflict_style) { opts.merge = 1; /* implied */ git_xmerge_config("merge.conflictstyle", conflict_style, NULL); @@ -821,8 +877,12 @@ no_reference: if (strbuf_check_branch_ref(&buf, opts.new_branch)) die("git checkout: we do not like '%s' as a branch name.", opts.new_branch); - if (!get_sha1(buf.buf, rev)) - die("git checkout: branch %s already exists", opts.new_branch); + if (!get_sha1(buf.buf, rev)) { + opts.branch_exists = 1; + if (!opts.new_branch_force) + die("git checkout: branch %s already exists", + opts.new_branch); + } strbuf_release(&buf); }