diff options
Diffstat (limited to 'builtin/checkout.c')
| -rw-r--r-- | builtin/checkout.c | 274 |
1 files changed, 116 insertions, 158 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c index e1e157d205..d76e13c852 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -1,5 +1,6 @@ #include "builtin.h" #include "config.h" +#include "checkout.h" #include "lockfile.h" #include "parse-options.h" #include "refs.h" @@ -53,14 +54,14 @@ struct checkout_opts { struct tree *source_tree; }; -static int post_checkout_hook(struct commit *old, struct commit *new, +static int post_checkout_hook(struct commit *old_commit, struct commit *new_commit, int changed) { return run_hook_le(NULL, "post-checkout", - oid_to_hex(old ? &old->object.oid : &null_oid), - oid_to_hex(new ? &new->object.oid : &null_oid), + oid_to_hex(old_commit ? &old_commit->object.oid : &null_oid), + oid_to_hex(new_commit ? &new_commit->object.oid : &null_oid), changed ? "1" : "0", NULL); - /* "new" can be NULL when checking out from the index before + /* "new_commit" can be NULL when checking out from the index before a commit exists. */ } @@ -226,8 +227,7 @@ static int checkout_merged(int pos, const struct checkout *state) * (it also writes the merge result to the object database even * when it may contain conflicts). */ - if (write_sha1_file(result_buf.ptr, result_buf.size, - blob_type, oid.hash)) + if (write_object_file(result_buf.ptr, result_buf.size, blob_type, &oid)) die(_("Unable to add merge result for '%s'"), path); free(result_buf.ptr); ce = make_cache_entry(mode, oid.hash, path, 2, 0); @@ -400,10 +400,16 @@ static void show_local_changes(struct object *head, static void describe_detached_head(const char *msg, struct commit *commit) { struct strbuf sb = STRBUF_INIT; + if (!parse_commit(commit)) pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb); - fprintf(stderr, "%s %s... %s\n", msg, - find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV), sb.buf); + if (print_sha1_ellipsis()) { + fprintf(stderr, "%s %s... %s\n", msg, + find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV), sb.buf); + } else { + fprintf(stderr, "%s %s %s\n", msg, + find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV), sb.buf); + } strbuf_release(&sb); } @@ -465,8 +471,8 @@ static void setup_branch_path(struct branch_info *branch) } static int merge_working_tree(const struct checkout_opts *opts, - struct branch_info *old, - struct branch_info *new, + struct branch_info *old_branch_info, + struct branch_info *new_branch_info, int *writeout_error) { int ret; @@ -478,7 +484,7 @@ static int merge_working_tree(const struct checkout_opts *opts, resolve_undo_clear(); if (opts->force) { - ret = reset_tree(new->commit->tree, opts, 1, writeout_error); + ret = reset_tree(new_branch_info->commit->tree, opts, 1, writeout_error); if (ret) return ret; } else { @@ -504,7 +510,7 @@ static int merge_working_tree(const struct checkout_opts *opts, topts.initial_checkout = is_cache_unborn(); topts.update = 1; topts.merge = 1; - topts.gently = opts->merge && old->commit; + topts.gently = opts->merge && old_branch_info->commit; topts.verbose_update = opts->show_progress; topts.fn = twoway_merge; if (opts->overwrite_ignore) { @@ -512,11 +518,11 @@ static int merge_working_tree(const struct checkout_opts *opts, topts.dir->flags |= DIR_SHOW_IGNORED; setup_standard_excludes(topts.dir); } - tree = parse_tree_indirect(old->commit ? - &old->commit->object.oid : + tree = parse_tree_indirect(old_branch_info->commit ? + &old_branch_info->commit->object.oid : the_hash_algo->empty_tree); init_tree_desc(&trees[0], tree->buffer, tree->size); - tree = parse_tree_indirect(&new->commit->object.oid); + tree = parse_tree_indirect(&new_branch_info->commit->object.oid); init_tree_desc(&trees[1], tree->buffer, tree->size); ret = unpack_trees(2, trees, &topts); @@ -533,10 +539,10 @@ static int merge_working_tree(const struct checkout_opts *opts, return 1; /* - * Without old->commit, the below is the same as + * Without old_branch_info->commit, the below is the same as * the two-tree unpack we already tried and failed. */ - if (!old->commit) + if (!old_branch_info->commit) return 1; /* Do more real merge */ @@ -564,18 +570,18 @@ static int merge_working_tree(const struct checkout_opts *opts, o.verbosity = 0; work = write_tree_from_memory(&o); - ret = reset_tree(new->commit->tree, opts, 1, + ret = reset_tree(new_branch_info->commit->tree, opts, 1, writeout_error); if (ret) return ret; - o.ancestor = old->name; - o.branch1 = new->name; + o.ancestor = old_branch_info->name; + o.branch1 = new_branch_info->name; o.branch2 = "local"; - ret = merge_trees(&o, new->commit->tree, work, - old->commit->tree, &result); + ret = merge_trees(&o, new_branch_info->commit->tree, work, + old_branch_info->commit->tree, &result); if (ret < 0) exit(128); - ret = reset_tree(new->commit->tree, opts, 0, + ret = reset_tree(new_branch_info->commit->tree, opts, 0, writeout_error); strbuf_release(&o.obuf); if (ret) @@ -593,25 +599,25 @@ static int merge_working_tree(const struct checkout_opts *opts, die(_("unable to write new index file")); if (!opts->force && !opts->quiet) - show_local_changes(&new->commit->object, &opts->diff_options); + show_local_changes(&new_branch_info->commit->object, &opts->diff_options); return 0; } -static void report_tracking(struct branch_info *new) +static void report_tracking(struct branch_info *new_branch_info) { struct strbuf sb = STRBUF_INIT; - struct branch *branch = branch_get(new->name); + struct branch *branch = branch_get(new_branch_info->name); - if (!format_tracking_info(branch, &sb)) + if (!format_tracking_info(branch, &sb, AHEAD_BEHIND_FULL)) return; fputs(sb.buf, stdout); strbuf_release(&sb); } static void update_refs_for_switch(const struct checkout_opts *opts, - struct branch_info *old, - struct branch_info *new) + struct branch_info *old_branch_info, + struct branch_info *new_branch_info) { struct strbuf msg = STRBUF_INIT; const char *old_desc, *reflog_msg; @@ -638,69 +644,69 @@ static void update_refs_for_switch(const struct checkout_opts *opts, free(refname); } else - create_branch(opts->new_branch, new->name, + create_branch(opts->new_branch, new_branch_info->name, opts->new_branch_force ? 1 : 0, - opts->new_branch_log, opts->new_branch_force ? 1 : 0, + opts->new_branch_log, opts->quiet, opts->track); - new->name = opts->new_branch; - setup_branch_path(new); + new_branch_info->name = opts->new_branch; + setup_branch_path(new_branch_info); } - old_desc = old->name; - if (!old_desc && old->commit) - old_desc = oid_to_hex(&old->commit->object.oid); + old_desc = old_branch_info->name; + if (!old_desc && old_branch_info->commit) + old_desc = oid_to_hex(&old_branch_info->commit->object.oid); reflog_msg = getenv("GIT_REFLOG_ACTION"); if (!reflog_msg) strbuf_addf(&msg, "checkout: moving from %s to %s", - old_desc ? old_desc : "(invalid)", new->name); + old_desc ? old_desc : "(invalid)", new_branch_info->name); else strbuf_insert(&msg, 0, reflog_msg, strlen(reflog_msg)); - if (!strcmp(new->name, "HEAD") && !new->path && !opts->force_detach) { + if (!strcmp(new_branch_info->name, "HEAD") && !new_branch_info->path && !opts->force_detach) { /* Nothing to do. */ - } else if (opts->force_detach || !new->path) { /* No longer on any branch. */ - update_ref(msg.buf, "HEAD", &new->commit->object.oid, NULL, + } else if (opts->force_detach || !new_branch_info->path) { /* No longer on any branch. */ + update_ref(msg.buf, "HEAD", &new_branch_info->commit->object.oid, NULL, REF_NO_DEREF, UPDATE_REFS_DIE_ON_ERR); if (!opts->quiet) { - if (old->path && + if (old_branch_info->path && advice_detached_head && !opts->force_detach) - detach_advice(new->name); - describe_detached_head(_("HEAD is now at"), new->commit); + detach_advice(new_branch_info->name); + describe_detached_head(_("HEAD is now at"), new_branch_info->commit); } - } else if (new->path) { /* Switch branches. */ - if (create_symref("HEAD", new->path, msg.buf) < 0) + } else if (new_branch_info->path) { /* Switch branches. */ + if (create_symref("HEAD", new_branch_info->path, msg.buf) < 0) die(_("unable to update HEAD")); if (!opts->quiet) { - if (old->path && !strcmp(new->path, old->path)) { + if (old_branch_info->path && !strcmp(new_branch_info->path, old_branch_info->path)) { if (opts->new_branch_force) fprintf(stderr, _("Reset branch '%s'\n"), - new->name); + new_branch_info->name); else fprintf(stderr, _("Already on '%s'\n"), - new->name); + new_branch_info->name); } else if (opts->new_branch) { if (opts->branch_exists) - fprintf(stderr, _("Switched to and reset branch '%s'\n"), new->name); + fprintf(stderr, _("Switched to and reset branch '%s'\n"), new_branch_info->name); else - fprintf(stderr, _("Switched to a new branch '%s'\n"), new->name); + fprintf(stderr, _("Switched to a new branch '%s'\n"), new_branch_info->name); } else { fprintf(stderr, _("Switched to branch '%s'\n"), - new->name); + new_branch_info->name); } } - if (old->path && old->name) { - if (!ref_exists(old->path) && reflog_exists(old->path)) - delete_reflog(old->path); + if (old_branch_info->path && old_branch_info->name) { + if (!ref_exists(old_branch_info->path) && reflog_exists(old_branch_info->path)) + delete_reflog(old_branch_info->path); } } remove_branch_state(); strbuf_release(&msg); if (!opts->quiet && - (new->path || (!opts->force_detach && !strcmp(new->name, "HEAD")))) - report_tracking(new); + (new_branch_info->path || (!opts->force_detach && !strcmp(new_branch_info->name, "HEAD")))) + report_tracking(new_branch_info); } static int add_pending_uninteresting_ref(const char *refname, @@ -780,11 +786,10 @@ static void suggest_reattach(struct commit *commit, struct rev_info *revs) * HEAD. If it is not reachable from any ref, this is the last chance * for the user to do so without resorting to reflog. */ -static void orphaned_commit_warning(struct commit *old, struct commit *new) +static void orphaned_commit_warning(struct commit *old_commit, struct commit *new_commit) { struct rev_info revs; - struct object *object = &old->object; - struct object_array refs; + struct object *object = &old_commit->object; init_revisions(&revs, NULL); setup_revisions(0, NULL, &revs, NULL); @@ -793,67 +798,57 @@ static void orphaned_commit_warning(struct commit *old, struct commit *new) add_pending_object(&revs, object, oid_to_hex(&object->oid)); for_each_ref(add_pending_uninteresting_ref, &revs); - add_pending_oid(&revs, "HEAD", &new->object.oid, UNINTERESTING); - - /* Save pending objects, so they can be cleaned up later. */ - refs = revs.pending; - revs.leak_pending = 1; + add_pending_oid(&revs, "HEAD", &new_commit->object.oid, UNINTERESTING); - /* - * prepare_revision_walk (together with .leak_pending = 1) makes us - * the sole owner of the list of pending objects. - */ if (prepare_revision_walk(&revs)) die(_("internal error in revision walk")); - if (!(old->object.flags & UNINTERESTING)) - suggest_reattach(old, &revs); + if (!(old_commit->object.flags & UNINTERESTING)) + suggest_reattach(old_commit, &revs); else - describe_detached_head(_("Previous HEAD position was"), old); + describe_detached_head(_("Previous HEAD position was"), old_commit); /* Clean up objects used, as they will be reused. */ - clear_commit_marks_for_object_array(&refs, ALL_REV_FLAGS); - - object_array_clear(&refs); + clear_commit_marks_all(ALL_REV_FLAGS); } static int switch_branches(const struct checkout_opts *opts, - struct branch_info *new) + struct branch_info *new_branch_info) { int ret = 0; - struct branch_info old; + struct branch_info old_branch_info; void *path_to_free; struct object_id rev; int flag, writeout_error = 0; - memset(&old, 0, sizeof(old)); - old.path = path_to_free = resolve_refdup("HEAD", 0, &rev, &flag); - if (old.path) - old.commit = lookup_commit_reference_gently(&rev, 1); + memset(&old_branch_info, 0, sizeof(old_branch_info)); + old_branch_info.path = path_to_free = resolve_refdup("HEAD", 0, &rev, &flag); + if (old_branch_info.path) + old_branch_info.commit = lookup_commit_reference_gently(&rev, 1); if (!(flag & REF_ISSYMREF)) - old.path = NULL; + old_branch_info.path = NULL; - if (old.path) - skip_prefix(old.path, "refs/heads/", &old.name); + if (old_branch_info.path) + skip_prefix(old_branch_info.path, "refs/heads/", &old_branch_info.name); - if (!new->name) { - new->name = "HEAD"; - new->commit = old.commit; - if (!new->commit) + if (!new_branch_info->name) { + new_branch_info->name = "HEAD"; + new_branch_info->commit = old_branch_info.commit; + if (!new_branch_info->commit) die(_("You are on a branch yet to be born")); - parse_commit_or_die(new->commit); + parse_commit_or_die(new_branch_info->commit); } - ret = merge_working_tree(opts, &old, new, &writeout_error); + ret = merge_working_tree(opts, &old_branch_info, new_branch_info, &writeout_error); if (ret) { free(path_to_free); return ret; } - if (!opts->quiet && !old.path && old.commit && new->commit != old.commit) - orphaned_commit_warning(old.commit, new->commit); + if (!opts->quiet && !old_branch_info.path && old_branch_info.commit && new_branch_info->commit != old_branch_info.commit) + orphaned_commit_warning(old_branch_info.commit, new_branch_info->commit); - update_refs_for_switch(opts, &old, new); + update_refs_for_switch(opts, &old_branch_info, new_branch_info); - ret = post_checkout_hook(old.commit, new->commit, 1); + ret = post_checkout_hook(old_branch_info.commit, new_branch_info->commit, 1); free(path_to_free); return ret || writeout_error; } @@ -872,49 +867,9 @@ static int git_checkout_config(const char *var, const char *value, void *cb) return git_xmerge_config(var, value, NULL); } -struct tracking_name_data { - /* const */ char *src_ref; - char *dst_ref; - struct object_id *dst_oid; - int unique; -}; - -static int check_tracking_name(struct remote *remote, void *cb_data) -{ - struct tracking_name_data *cb = cb_data; - struct refspec query; - memset(&query, 0, sizeof(struct refspec)); - query.src = cb->src_ref; - if (remote_find_tracking(remote, &query) || - get_oid(query.dst, cb->dst_oid)) { - free(query.dst); - return 0; - } - if (cb->dst_ref) { - free(query.dst); - cb->unique = 0; - return 0; - } - cb->dst_ref = query.dst; - return 0; -} - -static const char *unique_tracking_name(const char *name, struct object_id *oid) -{ - struct tracking_name_data cb_data = { NULL, NULL, NULL, 1 }; - cb_data.src_ref = xstrfmt("refs/heads/%s", name); - cb_data.dst_oid = oid; - for_each_remote(check_tracking_name, &cb_data); - free(cb_data.src_ref); - if (cb_data.unique) - return cb_data.dst_ref; - free(cb_data.dst_ref); - return NULL; -} - static int parse_branchname_arg(int argc, const char **argv, int dwim_new_local_branch_ok, - struct branch_info *new, + struct branch_info *new_branch_info, struct checkout_opts *opts, struct object_id *rev) { @@ -1032,22 +987,22 @@ static int parse_branchname_arg(int argc, const char **argv, argv++; argc--; - new->name = arg; - setup_branch_path(new); + new_branch_info->name = arg; + setup_branch_path(new_branch_info); - if (!check_refname_format(new->path, 0) && - !read_ref(new->path, &branch_rev)) + if (!check_refname_format(new_branch_info->path, 0) && + !read_ref(new_branch_info->path, &branch_rev)) oidcpy(rev, &branch_rev); else - new->path = NULL; /* not an existing branch */ + new_branch_info->path = NULL; /* not an existing branch */ - new->commit = lookup_commit_reference_gently(rev, 1); - if (!new->commit) { + new_branch_info->commit = lookup_commit_reference_gently(rev, 1); + if (!new_branch_info->commit) { /* not a commit */ *source_tree = parse_tree_indirect(rev); } else { - parse_commit_or_die(new->commit); - *source_tree = new->commit->tree; + parse_commit_or_die(new_branch_info->commit); + *source_tree = new_branch_info->commit->tree; } if (!*source_tree) /* case (1): want a tree */ @@ -1087,7 +1042,7 @@ static int switch_unborn_to_new_branch(const struct checkout_opts *opts) } static int checkout_branch(struct checkout_opts *opts, - struct branch_info *new) + struct branch_info *new_branch_info) { if (opts->pathspec.nr) die(_("paths cannot be used with switching branches")); @@ -1116,21 +1071,21 @@ static int checkout_branch(struct checkout_opts *opts, } else if (opts->track == BRANCH_TRACK_UNSPECIFIED) opts->track = git_branch_track; - if (new->name && !new->commit) + if (new_branch_info->name && !new_branch_info->commit) die(_("Cannot switch branch to a non-commit '%s'"), - new->name); + new_branch_info->name); - if (new->path && !opts->force_detach && !opts->new_branch && + if (new_branch_info->path && !opts->force_detach && !opts->new_branch && !opts->ignore_other_worktrees) { int flag; char *head_ref = resolve_refdup("HEAD", 0, NULL, &flag); if (head_ref && - (!(flag & REF_ISSYMREF) || strcmp(head_ref, new->path))) - die_if_checked_out(new->path, 1); + (!(flag & REF_ISSYMREF) || strcmp(head_ref, new_branch_info->path))) + die_if_checked_out(new_branch_info->path, 1); free(head_ref); } - if (!new->commit && opts->new_branch) { + if (!new_branch_info->commit && opts->new_branch) { struct object_id rev; int flag; @@ -1138,13 +1093,13 @@ static int checkout_branch(struct checkout_opts *opts, (flag & REF_ISSYMREF) && is_null_oid(&rev)) return switch_unborn_to_new_branch(opts); } - return switch_branches(opts, new); + return switch_branches(opts, new_branch_info); } int cmd_checkout(int argc, const char **argv, const char *prefix) { struct checkout_opts opts; - struct branch_info new; + struct branch_info new_branch_info; char *conflict_style = NULL; int dwim_new_local_branch = 1; struct option options[] = { @@ -1162,9 +1117,12 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) 2), OPT_SET_INT('3', "theirs", &opts.writeout_stage, N_("checkout their version for unmerged files"), 3), - OPT__FORCE(&opts.force, N_("force checkout (throw away local modifications)")), + OPT__FORCE(&opts.force, N_("force checkout (throw away local modifications)"), + PARSE_OPT_NOCOMPLETE), OPT_BOOL('m', "merge", &opts.merge, N_("perform a 3-way merge with the new branch")), - OPT_BOOL(0, "overwrite-ignore", &opts.overwrite_ignore, N_("update ignored files (default)")), + OPT_BOOL_F(0, "overwrite-ignore", &opts.overwrite_ignore, + N_("update ignored files (default)"), + PARSE_OPT_NOCOMPLETE), OPT_STRING(0, "conflict", &conflict_style, N_("style"), N_("conflict style (merge or diff3)")), OPT_BOOL('p', "patch", &opts.patch_mode, N_("select hunks interactively")), @@ -1182,7 +1140,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) }; memset(&opts, 0, sizeof(opts)); - memset(&new, 0, sizeof(new)); + memset(&new_branch_info, 0, sizeof(new_branch_info)); opts.overwrite_ignore = 1; opts.prefix = prefix; opts.show_progress = -1; @@ -1254,7 +1212,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) opts.track == BRANCH_TRACK_UNSPECIFIED && !opts.new_branch; int n = parse_branchname_arg(argc, argv, dwim_ok, - &new, &opts, &rev); + &new_branch_info, &opts, &rev); argv += n; argc -= n; } @@ -1297,7 +1255,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) UNLEAK(opts); if (opts.patch_mode || opts.pathspec.nr) - return checkout_paths(&opts, new.name); + return checkout_paths(&opts, new_branch_info.name); else - return checkout_branch(&opts, &new); + return checkout_branch(&opts, &new_branch_info); } |