diff options
Diffstat (limited to 'builtin/checkout.c')
| -rw-r--r-- | builtin/checkout.c | 705 |
1 files changed, 458 insertions, 247 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c index d677381..71e6036 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -1,7 +1,6 @@ -#define USE_THE_INDEX_COMPATIBILITY_MACROS +#define USE_THE_INDEX_VARIABLE #include "builtin.h" #include "advice.h" -#include "blob.h" #include "branch.h" #include "cache-tree.h" #include "checkout.h" @@ -9,23 +8,36 @@ #include "config.h" #include "diff.h" #include "dir.h" -#include "ll-merge.h" +#include "environment.h" +#include "gettext.h" +#include "hex.h" +#include "hook.h" +#include "merge-ll.h" #include "lockfile.h" +#include "mem-pool.h" #include "merge-recursive.h" -#include "object-store.h" +#include "object-name.h" +#include "object-store-ll.h" #include "parse-options.h" +#include "path.h" +#include "preload-index.h" +#include "read-cache.h" #include "refs.h" #include "remote.h" #include "resolve-undo.h" #include "revision.h" -#include "run-command.h" +#include "setup.h" #include "submodule.h" -#include "submodule-config.h" +#include "symlinks.h" +#include "trace2.h" #include "tree.h" #include "tree-walk.h" #include "unpack-trees.h" #include "wt-status.h" #include "xdiff-interface.h" +#include "entry.h" +#include "parallel-checkout.h" +#include "add-interactive.h" static const char * const checkout_usage[] = { N_("git checkout [<options>] <branch>"), @@ -71,7 +83,7 @@ struct checkout_opts { const char *ignore_unmerged_opt; int ignore_unmerged; int pathspec_file_nul; - const char *pathspec_from_file; + char *pathspec_from_file; const char *new_branch; const char *new_branch_force; @@ -79,7 +91,7 @@ struct checkout_opts { int new_branch_log; enum branch_track track; struct diff_options diff_options; - char *conflict_style; + int conflict_style; int branch_exists; const char *prefix; @@ -88,12 +100,35 @@ struct checkout_opts { struct tree *source_tree; }; +#define CHECKOUT_OPTS_INIT { .conflict_style = -1, .merge = -1 } + +struct branch_info { + char *name; /* The short name used */ + char *path; /* The full name of a real branch */ + struct commit *commit; /* The named commit */ + char *refname; /* The full name of the ref being checked out. */ + struct object_id oid; /* The object ID of the commit being checked out. */ + /* + * if not null the branch is detached because it's already + * checked out in this checkout + */ + char *checkout; +}; + +static void branch_info_release(struct branch_info *info) +{ + free(info->name); + free(info->path); + free(info->refname); + free(info->checkout); +} + 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_commit ? &old_commit->object.oid : &null_oid), - oid_to_hex(new_commit ? &new_commit->object.oid : &null_oid), + return run_hooks_l("post-checkout", + 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_commit" can be NULL when checking out from the index before a commit exists. */ @@ -101,7 +136,7 @@ static int post_checkout_hook(struct commit *old_commit, struct commit *new_comm } static int update_some(const struct object_id *oid, struct strbuf *base, - const char *pathname, unsigned mode, int stage, void *context) + const char *pathname, unsigned mode, void *context UNUSED) { int len; struct cache_entry *ce; @@ -124,9 +159,9 @@ static int update_some(const struct object_id *oid, struct strbuf *base, * entry in place. Whether it is UPTODATE or not, checkout_entry will * do the right thing. */ - pos = cache_name_pos(ce->name, ce->ce_namelen); + pos = index_name_pos(&the_index, ce->name, ce->ce_namelen); if (pos >= 0) { - struct cache_entry *old = active_cache[pos]; + struct cache_entry *old = the_index.cache[pos]; if (ce->ce_mode == old->ce_mode && !ce_intent_to_add(old) && oideq(&ce->oid, &old->oid)) { @@ -136,14 +171,15 @@ static int update_some(const struct object_id *oid, struct strbuf *base, } } - add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE); + add_index_entry(&the_index, ce, + ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE); return 0; } static int read_tree_some(struct tree *tree, const struct pathspec *pathspec) { - read_tree_recursive(the_repository, tree, "", 0, 0, - pathspec, update_some, NULL); + read_tree(the_repository, tree, + pathspec, update_some, NULL); /* update the index with the given tree's info * for all args, expanding wildcards, and exit @@ -154,8 +190,8 @@ static int read_tree_some(struct tree *tree, const struct pathspec *pathspec) static int skip_same_name(const struct cache_entry *ce, int pos) { - while (++pos < active_nr && - !strcmp(active_cache[pos]->name, ce->name)) + while (++pos < the_index.cache_nr && + !strcmp(the_index.cache[pos]->name, ce->name)) ; /* skip */ return pos; } @@ -163,9 +199,9 @@ static int skip_same_name(const struct cache_entry *ce, int pos) static int check_stage(int stage, const struct cache_entry *ce, int pos, int overlay_mode) { - while (pos < active_nr && - !strcmp(active_cache[pos]->name, ce->name)) { - if (ce_stage(active_cache[pos]) == stage) + while (pos < the_index.cache_nr && + !strcmp(the_index.cache[pos]->name, ce->name)) { + if (ce_stage(the_index.cache[pos]) == stage) return 0; pos++; } @@ -182,8 +218,8 @@ static int check_stages(unsigned stages, const struct cache_entry *ce, int pos) unsigned seen = 0; const char *name = ce->name; - while (pos < active_nr) { - ce = active_cache[pos]; + while (pos < the_index.cache_nr) { + ce = the_index.cache[pos]; if (strcmp(name, ce->name)) break; seen |= (1 << ce_stage(ce)); @@ -199,15 +235,15 @@ static int checkout_stage(int stage, const struct cache_entry *ce, int pos, const struct checkout *state, int *nr_checkouts, int overlay_mode) { - while (pos < active_nr && - !strcmp(active_cache[pos]->name, ce->name)) { - if (ce_stage(active_cache[pos]) == stage) - return checkout_entry(active_cache[pos], state, + while (pos < the_index.cache_nr && + !strcmp(the_index.cache[pos]->name, ce->name)) { + if (ce_stage(the_index.cache[pos]) == stage) + return checkout_entry(the_index.cache[pos], state, NULL, nr_checkouts); pos++; } if (!overlay_mode) { - unlink_entry(ce); + unlink_entry(ce, NULL); return 0; } if (stage == 2) @@ -216,19 +252,24 @@ static int checkout_stage(int stage, const struct cache_entry *ce, int pos, return error(_("path '%s' does not have their version"), ce->name); } -static int checkout_merged(int pos, const struct checkout *state, int *nr_checkouts) +static int checkout_merged(int pos, const struct checkout *state, + int *nr_checkouts, struct mem_pool *ce_mem_pool, + int conflict_style) { - struct cache_entry *ce = active_cache[pos]; + struct cache_entry *ce = the_index.cache[pos]; const char *path = ce->name; mmfile_t ancestor, ours, theirs; + enum ll_merge_result merge_status; int status; struct object_id oid; mmbuffer_t result_buf; struct object_id threeway[3]; unsigned mode = 0; + struct ll_merge_options ll_opts = LL_MERGE_OPTIONS_INIT; + int renormalize = 0; memset(threeway, 0, sizeof(threeway)); - while (pos < active_nr) { + while (pos < the_index.cache_nr) { int stage; stage = ce_stage(ce); if (!stage || strcmp(path, ce->name)) @@ -237,7 +278,7 @@ static int checkout_merged(int pos, const struct checkout *state, int *nr_checko if (stage == 2) mode = create_ce_mode(ce->ce_mode); pos++; - ce = active_cache[pos]; + ce = the_index.cache[pos]; } if (is_null_oid(&threeway[1]) || is_null_oid(&threeway[2])) return error(_("path '%s' does not have necessary versions"), path); @@ -246,17 +287,19 @@ static int checkout_merged(int pos, const struct checkout *state, int *nr_checko read_mmblob(&ours, &threeway[1]); read_mmblob(&theirs, &threeway[2]); - /* - * NEEDSWORK: re-create conflicts from merges with - * merge.renormalize set, too - */ - status = ll_merge(&result_buf, path, &ancestor, "base", - &ours, "ours", &theirs, "theirs", - state->istate, NULL); + git_config_get_bool("merge.renormalize", &renormalize); + ll_opts.renormalize = renormalize; + ll_opts.conflict_style = conflict_style; + merge_status = ll_merge(&result_buf, path, &ancestor, "base", + &ours, "ours", &theirs, "theirs", + state->istate, &ll_opts); free(ancestor.ptr); free(ours.ptr); free(theirs.ptr); - if (status < 0 || !result_buf.ptr) { + if (merge_status == LL_MERGE_BINARY_CONFLICT) + warning("Cannot merge binary files: %s (%s vs. %s)", + path, "ours", "theirs"); + if (merge_status < 0 || !result_buf.ptr) { free(result_buf.ptr); return error(_("path '%s': cannot merge"), path); } @@ -273,14 +316,13 @@ static int checkout_merged(int pos, const struct checkout *state, int *nr_checko * (it also writes the merge result to the object database even * when it may contain conflicts). */ - if (write_object_file(result_buf.ptr, result_buf.size, blob_type, &oid)) + if (write_object_file(result_buf.ptr, result_buf.size, OBJ_BLOB, &oid)) die(_("Unable to add merge result for '%s'"), path); free(result_buf.ptr); - ce = make_transient_cache_entry(mode, &oid, path, 2); + ce = make_transient_cache_entry(mode, &oid, path, 2, ce_mem_pool); if (!ce) die(_("make_cache_entry failed for path '%s'"), path); status = checkout_entry(ce, state, NULL, nr_checkouts); - discard_cache_entry(ce); return status; } @@ -308,7 +350,7 @@ static void mark_ce_for_checkout_overlay(struct cache_entry *ce, * If it comes from the tree-ish, we already know it * matches the pathspec and could just stamp * CE_MATCHED to it from update_some(). But we still - * need ps_matched and read_tree_recursive (and + * need ps_matched and read_tree (and * eventually tree_entry_interesting) cannot fill * ps_matched yet. Once it can, we can avoid calling * match_pathspec() for _all_ entries when @@ -337,20 +379,33 @@ static void mark_ce_for_checkout_no_overlay(struct cache_entry *ce, } } -static int checkout_worktree(const struct checkout_opts *opts) +static int checkout_worktree(const struct checkout_opts *opts, + const struct branch_info *info) { struct checkout state = CHECKOUT_INIT; int nr_checkouts = 0, nr_unmerged = 0; int errs = 0; int pos; + int pc_workers, pc_threshold; + struct mem_pool ce_mem_pool; state.force = 1; state.refresh_cache = 1; state.istate = &the_index; + mem_pool_init(&ce_mem_pool, 0); + get_parallel_checkout_configs(&pc_workers, &pc_threshold); + init_checkout_metadata(&state.meta, info->refname, + info->commit ? &info->commit->object.oid : &info->oid, + NULL); + enable_delayed_checkout(&state); - for (pos = 0; pos < active_nr; pos++) { - struct cache_entry *ce = active_cache[pos]; + + if (pc_workers > 1) + init_parallel_checkout(); + + for (pos = 0; pos < the_index.cache_nr; pos++) { + struct cache_entry *ce = the_index.cache[pos]; if (ce->ce_flags & CE_MATCHED) { if (!ce_stage(ce)) { errs |= checkout_entry(ce, &state, @@ -364,13 +419,19 @@ static int checkout_worktree(const struct checkout_opts *opts) &nr_checkouts, opts->overlay_mode); else if (opts->merge) errs |= checkout_merged(pos, &state, - &nr_unmerged); + &nr_unmerged, + &ce_mem_pool, + opts->conflict_style); pos = skip_same_name(ce, pos) - 1; } } + if (pc_workers > 1) + errs |= run_parallel_checkout(&state, pc_workers, pc_threshold, + NULL, NULL); + mem_pool_discard(&ce_mem_pool, should_validate_cache_entries()); remove_marked_cache_entries(&the_index, 1); remove_scheduled_dirs(); - errs |= finish_delayed_checkout(&state, &nr_checkouts); + errs |= finish_delayed_checkout(&state, opts->show_progress); if (opts->count_checkout_paths) { if (nr_unmerged) @@ -383,8 +444,8 @@ static int checkout_worktree(const struct checkout_opts *opts) "Updated %d paths from %s", nr_checkouts), nr_checkouts, - find_unique_abbrev(&opts->source_tree->object.oid, - DEFAULT_ABBREV)); + repo_find_unique_abbrev(the_repository, &opts->source_tree->object.oid, + DEFAULT_ABBREV)); else if (!nr_unmerged || nr_checkouts) fprintf_ln(stderr, Q_("Updated %d path from the index", "Updated %d paths from the index", @@ -396,7 +457,7 @@ static int checkout_worktree(const struct checkout_opts *opts) } static int checkout_paths(const struct checkout_opts *opts, - const char *revision) + const struct branch_info *new_branch_info) { int pos; static char *ps_matched; @@ -422,10 +483,10 @@ static int checkout_paths(const struct checkout_opts *opts, die(_("'%s' cannot be used with updating paths"), "--detach"); if (opts->merge && opts->patch_mode) - die(_("'%s' cannot be used with %s"), "--merge", "--patch"); + die(_("options '%s' and '%s' cannot be used together"), "--merge", "--patch"); if (opts->ignore_unmerged && opts->merge) - die(_("'%s' cannot be used with %s"), + die(_("options '%s' and '%s' cannot be used together"), opts->ignore_unmerged_opt, "-m"); if (opts->new_branch) @@ -440,37 +501,77 @@ static int checkout_paths(const struct checkout_opts *opts, die(_("'%s' must be used when '%s' is not specified"), "--worktree", "--source"); - if (opts->checkout_index && !opts->checkout_worktree && - opts->writeout_stage) - die(_("'%s' or '%s' cannot be used with %s"), - "--ours", "--theirs", "--staged"); + /* + * Reject --staged option to the restore command when combined with + * merge-related options. Use the accept_ref flag to distinguish it + * from the checkout command, which does not accept --staged anyway. + * + * `restore --ours|--theirs --worktree --staged` could mean resolving + * conflicted paths to one side in both the worktree and the index, + * but does not currently. + * + * `restore --merge|--conflict=<style>` already recreates conflicts + * in both the worktree and the index, so adding --staged would be + * meaningless. + */ + if (!opts->accept_ref && opts->checkout_index) { + if (opts->writeout_stage) + die(_("'%s' or '%s' cannot be used with %s"), + "--ours", "--theirs", "--staged"); + + if (opts->merge) + die(_("'%s' or '%s' cannot be used with %s"), + "--merge", "--conflict", "--staged"); + } - if (opts->checkout_index && !opts->checkout_worktree && - opts->merge) - die(_("'%s' or '%s' cannot be used with %s"), - "--merge", "--conflict", "--staged"); + /* + * recreating unmerged index entries and writing out data from + * unmerged index entries would make no sense when checking out + * of a tree-ish. + */ + if ((opts->merge || opts->writeout_stage) && opts->source_tree) + die(_("'%s', '%s', or '%s' cannot be used when checking out of a tree"), + "--merge", "--ours", "--theirs"); if (opts->patch_mode) { - const char *patch_mode; + enum add_p_mode patch_mode; + const char *rev = new_branch_info->name; + char rev_oid[GIT_MAX_HEXSZ + 1]; + + /* + * Since rev can be in the form of `<a>...<b>` (which is not + * recognized by diff-index), we will always replace the name + * with the hex of the commit (whether it's in `...` form or + * not) for the run_add_interactive() machinery to work + * properly. However, there is special logic for the HEAD case + * so we mustn't replace that. Also, when we were given a + * tree-object, new_branch_info->commit would be NULL, but we + * do not have to do any replacement, either. + */ + if (rev && new_branch_info->commit && strcmp(rev, "HEAD")) + rev = oid_to_hex_r(rev_oid, &new_branch_info->commit->object.oid); if (opts->checkout_index && opts->checkout_worktree) - patch_mode = "--patch=checkout"; + patch_mode = ADD_P_CHECKOUT; else if (opts->checkout_index && !opts->checkout_worktree) - patch_mode = "--patch=reset"; + patch_mode = ADD_P_RESET; else if (!opts->checkout_index && opts->checkout_worktree) - patch_mode = "--patch=worktree"; + patch_mode = ADD_P_WORKTREE; else BUG("either flag must have been set, worktree=%d, index=%d", opts->checkout_worktree, opts->checkout_index); - return run_add_interactive(revision, patch_mode, &opts->pathspec); + return !!run_add_p(the_repository, patch_mode, rev, + &opts->pathspec); } repo_hold_locked_index(the_repository, &lock_file, LOCK_DIE_ON_ERROR); - if (read_cache_preload(&opts->pathspec) < 0) + if (repo_read_index_preload(the_repository, &opts->pathspec, 0) < 0) return error(_("index file corrupt")); if (opts->source_tree) read_tree_some(opts->source_tree, &opts->pathspec); + if (opts->merge) + unmerge_index(&the_index, &opts->pathspec, CE_MATCHED); ps_matched = xcalloc(opts->pathspec.nr, 1); @@ -478,13 +579,13 @@ static int checkout_paths(const struct checkout_opts *opts, * Make sure all pathspecs participated in locating the paths * to be checked out. */ - for (pos = 0; pos < active_nr; pos++) + for (pos = 0; pos < the_index.cache_nr; pos++) if (opts->overlay_mode) - mark_ce_for_checkout_overlay(active_cache[pos], + mark_ce_for_checkout_overlay(the_index.cache[pos], ps_matched, opts); else - mark_ce_for_checkout_no_overlay(active_cache[pos], + mark_ce_for_checkout_no_overlay(the_index.cache[pos], ps_matched, opts); @@ -494,13 +595,9 @@ static int checkout_paths(const struct checkout_opts *opts, } free(ps_matched); - /* "checkout -m path" to recreate conflicted state */ - if (opts->merge) - unmerge_marked_index(&the_index); - /* Any unmerged paths? */ - for (pos = 0; pos < active_nr; pos++) { - const struct cache_entry *ce = active_cache[pos]; + for (pos = 0; pos < the_index.cache_nr; pos++) { + const struct cache_entry *ce = the_index.cache[pos]; if (ce->ce_flags & CE_MATCHED) { if (!ce_stage(ce)) continue; @@ -523,7 +620,7 @@ static int checkout_paths(const struct checkout_opts *opts, /* Now we are committed to check them out */ if (opts->checkout_worktree) - errs |= checkout_worktree(opts); + errs |= checkout_worktree(opts, new_branch_info); else remove_marked_cache_entries(&the_index, 1); @@ -564,29 +661,34 @@ static void show_local_changes(struct object *head, repo_init_revisions(the_repository, &rev, NULL); rev.diffopt.flags = opts->flags; rev.diffopt.output_format |= DIFF_FORMAT_NAME_STATUS; + rev.diffopt.flags.recursive = 1; diff_setup_done(&rev.diffopt); add_pending_object(&rev, head, NULL); run_diff_index(&rev, 0); + release_revisions(&rev); } static void describe_detached_head(const char *msg, struct commit *commit) { struct strbuf sb = STRBUF_INIT; - if (!parse_commit(commit)) + if (!repo_parse_commit(the_repository, commit)) pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb); if (print_sha1_ellipsis()) { fprintf(stderr, "%s %s... %s\n", msg, - find_unique_abbrev(&commit->object.oid, DEFAULT_ABBREV), sb.buf); + repo_find_unique_abbrev(the_repository, &commit->object.oid, DEFAULT_ABBREV), + sb.buf); } else { fprintf(stderr, "%s %s %s\n", msg, - find_unique_abbrev(&commit->object.oid, DEFAULT_ABBREV), sb.buf); + repo_find_unique_abbrev(the_repository, &commit->object.oid, DEFAULT_ABBREV), + sb.buf); } strbuf_release(&sb); } static int reset_tree(struct tree *tree, const struct checkout_opts *o, - int worktree, int *writeout_error) + int worktree, int *writeout_error, + struct branch_info *info) { struct unpack_trees_options opts; struct tree_desc tree_desc; @@ -595,14 +697,20 @@ static int reset_tree(struct tree *tree, const struct checkout_opts *o, opts.head_idx = -1; opts.update = worktree; opts.skip_unmerged = !worktree; - opts.reset = 1; + opts.reset = o->force ? UNPACK_RESET_OVERWRITE_UNTRACKED : + UNPACK_RESET_PROTECT_UNTRACKED; + opts.preserve_ignored = (!o->force && !o->overwrite_ignore); opts.merge = 1; opts.fn = oneway_merge; opts.verbose_update = o->show_progress; opts.src_index = &the_index; opts.dst_index = &the_index; - parse_tree(tree); - init_tree_desc(&tree_desc, tree->buffer, tree->size); + init_checkout_metadata(&opts.meta, info->refname, + info->commit ? &info->commit->object.oid : null_oid(), + NULL); + if (parse_tree(tree) < 0) + return 128; + init_tree_desc(&tree_desc, &tree->object.oid, tree->buffer, tree->size); switch (unpack_trees(1, &tree_desc, &opts)) { case -2: *writeout_error = 1; @@ -620,28 +728,48 @@ static int reset_tree(struct tree *tree, const struct checkout_opts *o, } } -struct branch_info { - const char *name; /* The short name used */ - const char *path; /* The full name of a real branch */ - struct commit *commit; /* The named commit */ - /* - * if not null the branch is detached because it's already - * checked out in this checkout - */ - char *checkout; -}; - static void setup_branch_path(struct branch_info *branch) { struct strbuf buf = STRBUF_INIT; + /* + * If this is a ref, resolve it; otherwise, look up the OID for our + * expression. Failure here is okay. + */ + if (!repo_dwim_ref(the_repository, branch->name, strlen(branch->name), + &branch->oid, &branch->refname, 0)) + repo_get_oid_committish(the_repository, branch->name, &branch->oid); + strbuf_branchname(&buf, branch->name, INTERPRET_BRANCH_LOCAL); - if (strcmp(buf.buf, branch->name)) + if (strcmp(buf.buf, branch->name)) { + free(branch->name); branch->name = xstrdup(buf.buf); + } strbuf_splice(&buf, 0, 0, "refs/heads/", 11); + free(branch->path); branch->path = strbuf_detach(&buf, NULL); } +static void init_topts(struct unpack_trees_options *topts, int merge, + int show_progress, int overwrite_ignore, + struct commit *old_commit) +{ + memset(topts, 0, sizeof(*topts)); + topts->head_idx = -1; + topts->src_index = &the_index; + topts->dst_index = &the_index; + + setup_unpack_trees_porcelain(topts, "checkout"); + + topts->initial_checkout = is_index_unborn(&the_index); + topts->update = 1; + topts->merge = 1; + topts->quiet = merge && old_commit; + topts->verbose_update = show_progress; + topts->fn = twoway_merge; + topts->preserve_ignored = !overwrite_ignore; +} + static int merge_working_tree(const struct checkout_opts *opts, struct branch_info *old_branch_info, struct branch_info *new_branch_info, @@ -651,59 +779,64 @@ static int merge_working_tree(const struct checkout_opts *opts, struct lock_file lock_file = LOCK_INIT; struct tree *new_tree; - hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR); - if (read_cache_preload(NULL) < 0) + repo_hold_locked_index(the_repository, &lock_file, LOCK_DIE_ON_ERROR); + if (repo_read_index_preload(the_repository, NULL, 0) < 0) return error(_("index file corrupt")); - resolve_undo_clear(); + resolve_undo_clear_index(&the_index); if (opts->new_orphan_branch && opts->orphan_from_empty_tree) { if (new_branch_info->commit) BUG("'switch --orphan' should never accept a commit as starting point"); new_tree = parse_tree_indirect(the_hash_algo->empty_tree); - } else - new_tree = get_commit_tree(new_branch_info->commit); + if (!new_tree) + BUG("unable to read empty tree"); + } else { + new_tree = repo_get_commit_tree(the_repository, + new_branch_info->commit); + if (!new_tree) + return error(_("unable to read tree (%s)"), + oid_to_hex(&new_branch_info->commit->object.oid)); + } if (opts->discard_changes) { - ret = reset_tree(new_tree, opts, 1, writeout_error); + ret = reset_tree(new_tree, opts, 1, writeout_error, new_branch_info); if (ret) return ret; } else { struct tree_desc trees[2]; struct tree *tree; struct unpack_trees_options topts; + const struct object_id *old_commit_oid; - memset(&topts, 0, sizeof(topts)); - topts.head_idx = -1; - topts.src_index = &the_index; - topts.dst_index = &the_index; - - setup_unpack_trees_porcelain(&topts, "checkout"); + refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL); - refresh_cache(REFRESH_QUIET); - - if (unmerged_cache()) { + if (unmerged_index(&the_index)) { error(_("you need to resolve your current index first")); return 1; } /* 2-way merge to the new branch */ - topts.initial_checkout = is_cache_unborn(); - topts.update = 1; - topts.merge = 1; - topts.quiet = opts->merge && old_branch_info->commit; - topts.verbose_update = opts->show_progress; - topts.fn = twoway_merge; - if (opts->overwrite_ignore) { - topts.dir = xcalloc(1, sizeof(*topts.dir)); - topts.dir->flags |= DIR_SHOW_IGNORED; - setup_standard_excludes(topts.dir); - } - 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); - parse_tree(new_tree); + init_topts(&topts, opts->merge, opts->show_progress, + opts->overwrite_ignore, old_branch_info->commit); + init_checkout_metadata(&topts.meta, new_branch_info->refname, + new_branch_info->commit ? + &new_branch_info->commit->object.oid : + &new_branch_info->oid, NULL); + + old_commit_oid = old_branch_info->commit ? + &old_branch_info->commit->object.oid : + the_hash_algo->empty_tree; + tree = parse_tree_indirect(old_commit_oid); + if (!tree) + die(_("unable to parse commit %s"), + oid_to_hex(old_commit_oid)); + + init_tree_desc(&trees[0], &tree->object.oid, + tree->buffer, tree->size); + if (parse_tree(new_tree) < 0) + exit(128); tree = new_tree; - init_tree_desc(&trees[1], tree->buffer, tree->size); + init_tree_desc(&trees[1], &tree->object.oid, + tree->buffer, tree->size); ret = unpack_trees(2, trees, &topts); clear_unpack_trees_porcelain(&topts); @@ -728,7 +861,8 @@ static int merge_working_tree(const struct checkout_opts *opts, */ if (!old_branch_info->commit) return 1; - old_tree = get_commit_tree(old_branch_info->commit); + old_tree = repo_get_commit_tree(the_repository, + old_branch_info->commit); if (repo_index_has_changes(the_repository, old_tree, &sb)) die(_("cannot continue with staged changes in " @@ -748,25 +882,19 @@ static int merge_working_tree(const struct checkout_opts *opts, * entries in the index. */ - add_files_to_cache(NULL, NULL, 0); - /* - * NEEDSWORK: carrying over local changes - * when branches have different end-of-line - * normalization (or clean+smudge rules) is - * a pain; plumb in an option to set - * o.renormalize? - */ + add_files_to_cache(the_repository, NULL, NULL, NULL, 0, + 0); init_merge_options(&o, the_repository); o.verbosity = 0; work = write_in_core_index_as_tree(the_repository); ret = reset_tree(new_tree, opts, 1, - writeout_error); + writeout_error, new_branch_info); if (ret) return ret; o.ancestor = old_branch_info->name; - if (old_branch_info->name == NULL) { + if (!old_branch_info->name) { strbuf_add_unique_abbrev(&old_commit_shortname, &old_branch_info->commit->object.oid, DEFAULT_ABBREV); @@ -774,6 +902,7 @@ static int merge_working_tree(const struct checkout_opts *opts, } o.branch1 = new_branch_info->name; o.branch2 = "local"; + o.conflict_style = opts->conflict_style; ret = merge_trees(&o, new_tree, work, @@ -782,7 +911,7 @@ static int merge_working_tree(const struct checkout_opts *opts, exit(128); ret = reset_tree(new_tree, opts, 0, - writeout_error); + writeout_error, new_branch_info); strbuf_release(&o.obuf); strbuf_release(&old_commit_shortname); if (ret) @@ -790,10 +919,7 @@ static int merge_working_tree(const struct checkout_opts *opts, } } - if (!active_cache_tree) - active_cache_tree = cache_tree(); - - if (!cache_tree_fully_valid(active_cache_tree)) + if (!cache_tree_fully_valid(the_index.cache_tree)) cache_tree_update(&the_index, WRITE_TREE_SILENT | WRITE_TREE_REPAIR); if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK)) @@ -810,7 +936,7 @@ static void report_tracking(struct branch_info *new_branch_info) struct strbuf sb = STRBUF_INIT; struct branch *branch = branch_get(new_branch_info->name); - if (!format_tracking_info(branch, &sb, AHEAD_BEHIND_FULL)) + if (!format_tracking_info(branch, &sb, AHEAD_BEHIND_FULL, 1)) return; fputs(sb.buf, stdout); strbuf_release(&sb); @@ -832,7 +958,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts, int ret; struct strbuf err = STRBUF_INIT; - ret = safe_create_reflog(refname, 1, &err); + ret = safe_create_reflog(refname, &err); if (ret) { fprintf(stderr, _("Can not do reflog for '%s': %s\n"), opts->new_orphan_branch, err.buf); @@ -851,8 +977,11 @@ static void update_refs_for_switch(const struct checkout_opts *opts, opts->new_branch_force ? 1 : 0, opts->new_branch_log, opts->quiet, - opts->track); - new_branch_info->name = opts->new_branch; + opts->track, + 0); + free(new_branch_info->name); + free(new_branch_info->refname); + new_branch_info->name = xstrdup(opts->new_branch); setup_branch_path(new_branch_info); } @@ -874,7 +1003,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts, REF_NO_DEREF, UPDATE_REFS_DIE_ON_ERR); if (!opts->quiet) { if (old_branch_info->path && - advice_detached_head && !opts->force_detach) + advice_enabled(ADVICE_DETACHED_HEAD) && !opts->force_detach) detach_advice(new_branch_info->name); describe_detached_head(_("HEAD is now at"), new_branch_info->commit); } @@ -907,13 +1036,14 @@ static void update_refs_for_switch(const struct checkout_opts *opts, remove_branch_state(the_repository, !opts->quiet); strbuf_release(&msg); if (!opts->quiet && - (new_branch_info->path || (!opts->force_detach && !strcmp(new_branch_info->name, "HEAD")))) + !opts->force_detach && + (new_branch_info->path || !strcmp(new_branch_info->name, "HEAD"))) report_tracking(new_branch_info); } static int add_pending_uninteresting_ref(const char *refname, const struct object_id *oid, - int flags, void *cb_data) + int flags UNUSED, void *cb_data) { add_pending_oid(cb_data, refname, oid, UNINTERESTING); return 0; @@ -924,7 +1054,7 @@ static void describe_one_orphan(struct strbuf *sb, struct commit *commit) strbuf_addstr(sb, " "); strbuf_add_unique_abbrev(sb, &commit->object.oid, DEFAULT_ABBREV); strbuf_addch(sb, ' '); - if (!parse_commit(commit)) + if (!repo_parse_commit(the_repository, commit)) pp_commit_easy(CMIT_FMT_ONELINE, commit, sb); strbuf_addch(sb, '\n'); } @@ -967,7 +1097,7 @@ static void suggest_reattach(struct commit *commit, struct rev_info *revs) sb.buf); strbuf_release(&sb); - if (advice_detached_head) + if (advice_enabled(ADVICE_DETACHED_HEAD)) fprintf(stderr, Q_( /* The singular version */ @@ -980,7 +1110,7 @@ static void suggest_reattach(struct commit *commit, struct rev_info *revs) " git branch <new-branch-name> %s\n\n", /* Give ngettext() the count */ lost), - find_unique_abbrev(&commit->object.oid, DEFAULT_ABBREV)); + repo_find_unique_abbrev(the_repository, &commit->object.oid, DEFAULT_ABBREV)); } /* @@ -1013,15 +1143,15 @@ static void orphaned_commit_warning(struct commit *old_commit, struct commit *ne describe_detached_head(_("Previous HEAD position was"), old_commit); /* Clean up objects used, as they will be reused. */ - clear_commit_marks_all(ALL_REV_FLAGS); + repo_clear_commit_marks(the_repository, ALL_REV_FLAGS); + release_revisions(&revs); } static int switch_branches(const struct checkout_opts *opts, struct branch_info *new_branch_info) { int ret = 0; - struct branch_info old_branch_info; - void *path_to_free; + struct branch_info old_branch_info = { 0 }; struct object_id rev; int flag, writeout_error = 0; int do_merge = 1; @@ -1029,25 +1159,29 @@ static int switch_branches(const struct checkout_opts *opts, trace2_cmd_mode("branch"); memset(&old_branch_info, 0, sizeof(old_branch_info)); - old_branch_info.path = path_to_free = resolve_refdup("HEAD", 0, &rev, &flag); + old_branch_info.path = resolve_refdup("HEAD", 0, &rev, &flag); if (old_branch_info.path) old_branch_info.commit = lookup_commit_reference_gently(the_repository, &rev, 1); if (!(flag & REF_ISSYMREF)) - old_branch_info.path = NULL; + FREE_AND_NULL(old_branch_info.path); - if (old_branch_info.path) - skip_prefix(old_branch_info.path, "refs/heads/", &old_branch_info.name); + if (old_branch_info.path) { + const char *const prefix = "refs/heads/"; + const char *p; + if (skip_prefix(old_branch_info.path, prefix, &p)) + old_branch_info.name = xstrdup(p); + } if (opts->new_orphan_branch && opts->orphan_from_empty_tree) { if (new_branch_info->name) BUG("'switch --orphan' should never accept a commit as starting point"); new_branch_info->commit = NULL; - new_branch_info->name = "(empty)"; + new_branch_info->name = xstrdup("(empty)"); do_merge = 1; } if (!new_branch_info->name) { - new_branch_info->name = "HEAD"; + new_branch_info->name = xstrdup("HEAD"); new_branch_info->commit = old_branch_info.commit; if (!new_branch_info->commit) die(_("You are on a branch yet to be born")); @@ -1060,7 +1194,7 @@ static int switch_branches(const struct checkout_opts *opts, if (do_merge) { ret = merge_working_tree(opts, &old_branch_info, new_branch_info, &writeout_error); if (ret) { - free(path_to_free); + branch_info_release(&old_branch_info); return ret; } } @@ -1071,22 +1205,31 @@ static int switch_branches(const struct checkout_opts *opts, update_refs_for_switch(opts, &old_branch_info, new_branch_info); ret = post_checkout_hook(old_branch_info.commit, new_branch_info->commit, 1); - free(path_to_free); + branch_info_release(&old_branch_info); + return ret || writeout_error; } -static int git_checkout_config(const char *var, const char *value, void *cb) +static int git_checkout_config(const char *var, const char *value, + const struct config_context *ctx, void *cb) { + struct checkout_opts *opts = cb; + if (!strcmp(var, "diff.ignoresubmodules")) { - struct checkout_opts *opts = cb; + if (!value) + return config_error_nonbool(var); handle_ignore_submodules_arg(&opts->diff_options, value); return 0; } + if (!strcmp(var, "checkout.guess")) { + opts->dwim_new_local_branch = git_config_bool(var, value); + return 0; + } if (starts_with(var, "submodule.")) return git_default_submodule_config(var, value, NULL); - return git_xmerge_config(var, value, NULL); + return git_xmerge_config(var, value, ctx, NULL); } static void setup_new_branch_info_and_source_tree( @@ -1098,22 +1241,31 @@ static void setup_new_branch_info_and_source_tree( struct tree **source_tree = &opts->source_tree; struct object_id branch_rev; - new_branch_info->name = arg; + /* treat '@' as a shortcut for 'HEAD' */ + new_branch_info->name = !strcmp(arg, "@") ? xstrdup("HEAD") : + xstrdup(arg); setup_branch_path(new_branch_info); if (!check_refname_format(new_branch_info->path, 0) && !read_ref(new_branch_info->path, &branch_rev)) oidcpy(rev, &branch_rev); else - new_branch_info->path = NULL; /* not an existing branch */ + /* not an existing branch */ + FREE_AND_NULL(new_branch_info->path); new_branch_info->commit = lookup_commit_reference_gently(the_repository, rev, 1); if (!new_branch_info->commit) { /* not a commit */ *source_tree = parse_tree_indirect(rev); + if (!*source_tree) + die(_("unable to read tree (%s)"), oid_to_hex(rev)); } else { parse_commit_or_die(new_branch_info->commit); - *source_tree = get_commit_tree(new_branch_info->commit); + *source_tree = repo_get_commit_tree(the_repository, + new_branch_info->commit); + if (!*source_tree) + die(_("unable to read tree (%s)"), + oid_to_hex(&new_branch_info->commit->object.oid)); } } @@ -1131,7 +1283,7 @@ static const char *parse_remote_branch(const char *arg, } if (!remote && num_matches > 1) { - if (advice_checkout_ambiguous_remote_branch_name) { + if (advice_enabled(ADVICE_CHECKOUT_AMBIGUOUS_REMOTE_BRANCH_NAME)) { advise(_("If you meant to check out a remote tracking branch on, e.g. 'origin',\n" "you can do so by fully qualifying the name with the --track option:\n" "\n" @@ -1181,7 +1333,7 @@ static int parse_branchname_arg(int argc, const char **argv, * between A and B, A...B names that merge base. * * (b) If <something> is _not_ a commit, either "--" is present - * or <something> is not a path, no -t or -b was given, and + * or <something> is not a path, no -t or -b was given, * and there is a tracking branch whose name is <something> * in one and only one remote (or if the branch exists on the * remote named in checkout.defaultRemote), then this is a @@ -1231,7 +1383,7 @@ static int parse_branchname_arg(int argc, const char **argv, if (!strcmp(arg, "-")) arg = "@{-1}"; - if (get_oid_mb(arg, rev)) { + if (repo_get_oid_mb(the_repository, arg, rev)) { /* * Either case (3) or (4), with <something> not being * a commit, or an attempt to use case (1) with an @@ -1326,23 +1478,32 @@ static void die_expecting_a_branch(const struct branch_info *branch_info) { struct object_id oid; char *to_free; + int code; - if (dwim_ref(branch_info->name, strlen(branch_info->name), &oid, &to_free) == 1) { + if (repo_dwim_ref(the_repository, branch_info->name, + strlen(branch_info->name), &oid, &to_free, 0) == 1) { const char *ref = to_free; if (skip_prefix(ref, "refs/tags/", &ref)) - die(_("a branch is expected, got tag '%s'"), ref); - if (skip_prefix(ref, "refs/remotes/", &ref)) - die(_("a branch is expected, got remote branch '%s'"), ref); - die(_("a branch is expected, got '%s'"), ref); + code = die_message(_("a branch is expected, got tag '%s'"), ref); + else if (skip_prefix(ref, "refs/remotes/", &ref)) + code = die_message(_("a branch is expected, got remote branch '%s'"), ref); + else + code = die_message(_("a branch is expected, got '%s'"), ref); } - if (branch_info->commit) - die(_("a branch is expected, got commit '%s'"), branch_info->name); - /* - * This case should never happen because we already die() on - * non-commit, but just in case. - */ - die(_("a branch is expected, got '%s'"), branch_info->name); + else if (branch_info->commit) + code = die_message(_("a branch is expected, got commit '%s'"), branch_info->name); + else + /* + * This case should never happen because we already die() on + * non-commit, but just in case. + */ + code = die_message(_("a branch is expected, got '%s'"), branch_info->name); + + if (advice_enabled(ADVICE_SUGGEST_DETACHING_HEAD)) + advise(_("If you want to detach HEAD at the commit, try again with the --detach option.")); + + exit(code); } static void die_if_some_operation_in_progress(void) @@ -1374,6 +1535,28 @@ static void die_if_some_operation_in_progress(void) "or \"git worktree add\".")); if (state.bisect_in_progress) warning(_("you are switching branch while bisecting")); + + wt_status_state_free_buffers(&state); +} + +/* + * die if attempting to checkout an existing branch that is in use + * in another worktree, unless ignore-other-wortrees option is given. + * The check is bypassed when the branch is already the current one, + * as it will not make things any worse. + */ +static void die_if_switching_to_a_branch_in_use(struct checkout_opts *opts, + const char *full_ref) +{ + int flags; + char *head_ref; + + if (opts->ignore_other_worktrees) + return; + head_ref = resolve_refdup("HEAD", 0, NULL, &flags); + if (head_ref && (!(flags & REF_ISSYMREF) || strcmp(head_ref, full_ref))) + die_if_checked_out(full_ref, 1); + free(head_ref); } static int checkout_branch(struct checkout_opts *opts, @@ -1436,14 +1619,15 @@ static int checkout_branch(struct checkout_opts *opts, if (!opts->can_switch_when_in_progress) die_if_some_operation_in_progress(); - 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_branch_info->path))) - die_if_checked_out(new_branch_info->path, 1); - free(head_ref); + /* "git checkout <branch>" */ + if (new_branch_info->path && !opts->force_detach && !opts->new_branch) + die_if_switching_to_a_branch_in_use(opts, new_branch_info->path); + + /* "git checkout -B <branch>" */ + if (opts->new_branch_force) { + char *full_ref = xstrfmt("refs/heads/%s", opts->new_branch); + die_if_switching_to_a_branch_in_use(opts, full_ref); + free(full_ref); } if (!new_branch_info->commit && opts->new_branch) { @@ -1457,18 +1641,37 @@ static int checkout_branch(struct checkout_opts *opts, return switch_branches(opts, new_branch_info); } +static int parse_opt_conflict(const struct option *o, const char *arg, int unset) +{ + struct checkout_opts *opts = o->value; + + if (unset) { + opts->conflict_style = -1; + return 0; + } + opts->conflict_style = parse_conflict_style_name(arg); + if (opts->conflict_style < 0) + return error(_("unknown conflict style '%s'"), arg); + /* --conflict overrides a previous --no-merge */ + if (!opts->merge) + opts->merge = -1; + + return 0; +} + static struct option *add_common_options(struct checkout_opts *opts, struct option *prevopts) { struct option options[] = { OPT__QUIET(&opts->quiet, N_("suppress progress reporting")), - { OPTION_CALLBACK, 0, "recurse-submodules", NULL, + OPT_CALLBACK_F(0, "recurse-submodules", NULL, "checkout", "control recursive updating of submodules", - PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater }, + PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater), OPT_BOOL(0, "progress", &opts->show_progress, N_("force progress reporting")), OPT_BOOL('m', "merge", &opts->merge, N_("perform a 3-way merge with the new branch")), - OPT_STRING(0, "conflict", &opts->conflict_style, N_("style"), - N_("conflict style (merge or diff3)")), + OPT_CALLBACK(0, "conflict", opts, N_("style"), + N_("conflict style (merge, diff3, or zdiff3)"), + parse_opt_conflict), OPT_END() }; struct option *newopts = parse_options_concat(prevopts, options); @@ -1481,11 +1684,13 @@ static struct option *add_common_switch_branch_options( { struct option options[] = { OPT_BOOL('d', "detach", &opts->force_detach, N_("detach HEAD at named commit")), - OPT_SET_INT('t', "track", &opts->track, N_("set upstream info for new branch"), - BRANCH_TRACK_EXPLICIT), + OPT_CALLBACK_F('t', "track", &opts->track, "(direct|inherit)", + N_("set branch tracking configuration"), + PARSE_OPT_OPTARG, + parse_opt_tracking_mode), OPT__FORCE(&opts->force, N_("force checkout (throw away local modifications)"), PARSE_OPT_NOCOMPLETE), - OPT_STRING(0, "orphan", &opts->new_orphan_branch, N_("new-branch"), N_("new unparented branch")), + OPT_STRING(0, "orphan", &opts->new_orphan_branch, N_("new-branch"), N_("new unborn branch")), OPT_BOOL_F(0, "overwrite-ignore", &opts->overwrite_ignore, N_("update ignored files (default)"), PARSE_OPT_NOCOMPLETE), @@ -1520,19 +1725,26 @@ static struct option *add_checkout_path_options(struct checkout_opts *opts, return newopts; } +/* create-branch option (either b or c) */ +static char cb_option = 'b'; + static int checkout_main(int argc, const char **argv, const char *prefix, struct checkout_opts *opts, struct option *options, const char * const usagestr[]) { - struct branch_info new_branch_info; int parseopt_flags = 0; + struct branch_info new_branch_info = { 0 }; + int ret; - memset(&new_branch_info, 0, sizeof(new_branch_info)); opts->overwrite_ignore = 1; opts->prefix = prefix; opts->show_progress = -1; git_config(git_checkout_config, opts); + if (the_repository->gitdir) { + prepare_repo_settings(the_repository); + the_repository->settings.command_requires_full_index = 0; + } opts->track = BRANCH_TRACK_UNSPECIFIED; @@ -1551,10 +1763,10 @@ static int checkout_main(int argc, const char **argv, const char *prefix, opts->show_progress = isatty(2); } - if (opts->conflict_style) { - opts->merge = 1; /* implied */ - git_xmerge_config("merge.conflictstyle", opts->conflict_style, NULL); - } + /* --conflicts implies --merge */ + if (opts->merge == -1) + opts->merge = opts->conflict_style >= 0; + if (opts->force) { opts->discard_changes = 1; opts->ignore_unmerged_opt = "--force"; @@ -1562,10 +1774,11 @@ static int checkout_main(int argc, const char **argv, const char *prefix, } if ((!!opts->new_branch + !!opts->new_branch_force + !!opts->new_orphan_branch) > 1) - die(_("-b, -B and --orphan are mutually exclusive")); + die(_("options '-%c', '-%c', and '%s' cannot be used together"), + cb_option, toupper(cb_option), "--orphan"); if (opts->overlay_mode == 1 && opts->patch_mode) - die(_("-p and --overlay are mutually exclusive")); + die(_("options '%s' and '%s' cannot be used together"), "-p", "--overlay"); if (opts->checkout_index >= 0 || opts->checkout_worktree >= 0) { if (opts->checkout_index < 0) @@ -1581,16 +1794,16 @@ static int checkout_main(int argc, const char **argv, const char *prefix, if (opts->checkout_index < 0 || opts->checkout_worktree < 0) BUG("these flags should be non-negative by now"); /* - * convenient shortcut: "git restore --staged" equals - * "git restore --staged --source HEAD" + * convenient shortcut: "git restore --staged [--worktree]" equals + * "git restore --staged [--worktree] --source HEAD" */ - if (!opts->from_treeish && opts->checkout_index && !opts->checkout_worktree) + if (!opts->from_treeish && opts->checkout_index) opts->from_treeish = "HEAD"; /* * From here on, new_branch will contain the branch to be checked out, * and new_branch_force and new_orphan_branch will tell us which one of - * -b/-B/--orphan is being used. + * -b/-B/-c/-C/--orphan is being used. */ if (opts->new_branch_force) opts->new_branch = opts->new_branch_force; @@ -1598,7 +1811,7 @@ static int checkout_main(int argc, const char **argv, const char *prefix, if (opts->new_orphan_branch) opts->new_branch = opts->new_orphan_branch; - /* --track without -b/-B/--orphan should DWIM */ + /* --track without -c/-C/-b/-B/--orphan should DWIM */ if (opts->track != BRANCH_TRACK_UNSPECIFIED && !opts->new_branch) { const char *argv0 = argv[0]; if (!argc || !strcmp(argv0, "--")) @@ -1607,7 +1820,7 @@ static int checkout_main(int argc, const char **argv, const char *prefix, skip_prefix(argv0, "remotes/", &argv0); argv0 = strchr(argv0, '/'); if (!argv0 || !argv0[1]) - die(_("missing branch name; try -b")); + die(_("missing branch name; try -%c"), cb_option); opts->new_branch = argv0 + 1; } @@ -1638,7 +1851,7 @@ static int checkout_main(int argc, const char **argv, const char *prefix, } else if (!opts->accept_ref && opts->from_treeish) { struct object_id rev; - if (get_oid_mb(opts->from_treeish, &rev)) + if (repo_get_oid_mb(the_repository, opts->from_treeish, &rev)) die(_("could not resolve %s"), opts->from_treeish); setup_new_branch_info_and_source_tree(&new_branch_info, @@ -1661,7 +1874,7 @@ static int checkout_main(int argc, const char **argv, const char *prefix, * Try to give more helpful suggestion. * new_branch && argc > 1 will be caught later. */ - if (opts->new_branch && argc == 1) + if (opts->new_branch && argc == 1 && !new_branch_info.commit) die(_("'%s' is not a commit and a branch '%s' cannot be created from it"), argv[0], opts->new_branch); @@ -1672,21 +1885,23 @@ static int checkout_main(int argc, const char **argv, const char *prefix, if (opts->pathspec_from_file) { if (opts->pathspec.nr) - die(_("--pathspec-from-file is incompatible with pathspec arguments")); + die(_("'%s' and pathspec arguments cannot be used together"), "--pathspec-from-file"); if (opts->force_detach) - die(_("--pathspec-from-file is incompatible with --detach")); + die(_("options '%s' and '%s' cannot be used together"), "--pathspec-from-file", "--detach"); if (opts->patch_mode) - die(_("--pathspec-from-file is incompatible with --patch")); + die(_("options '%s' and '%s' cannot be used together"), "--pathspec-from-file", "--patch"); parse_pathspec_file(&opts->pathspec, 0, 0, prefix, opts->pathspec_from_file, opts->pathspec_file_nul); } else if (opts->pathspec_file_nul) { - die(_("--pathspec-file-nul requires --pathspec-from-file")); + die(_("the option '%s' requires '%s'"), "--pathspec-file-nul", "--pathspec-from-file"); } + opts->pathspec.recursive = 1; + if (opts->pathspec.nr) { if (1 < !!opts->writeout_stage + !!opts->force + !!opts->merge) die(_("git checkout: --ours/--theirs, --force and --merge are incompatible when\n" @@ -1708,16 +1923,22 @@ static int checkout_main(int argc, const char **argv, const char *prefix, strbuf_release(&buf); } - UNLEAK(opts); if (opts->patch_mode || opts->pathspec.nr) - return checkout_paths(opts, new_branch_info.name); + ret = checkout_paths(opts, &new_branch_info); else - return checkout_branch(opts, &new_branch_info); + ret = checkout_branch(opts, &new_branch_info); + + branch_info_release(&new_branch_info); + clear_pathspec(&opts->pathspec); + free(opts->pathspec_from_file); + free(options); + + return ret; } int cmd_checkout(int argc, const char **argv, const char *prefix) { - struct checkout_opts opts; + struct checkout_opts opts = CHECKOUT_OPTS_INIT; struct option *options; struct option checkout_options[] = { OPT_STRING('b', NULL, &opts.new_branch, N_("branch"), @@ -1730,9 +1951,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) OPT_BOOL(0, "overlay", &opts.overlay_mode, N_("use overlay mode (default)")), OPT_END() }; - int ret; - memset(&opts, 0, sizeof(opts)); opts.dwim_new_local_branch = 1; opts.switch_branch_doing_nothing_is_ok = 1; opts.only_merge_on_switching_branches = 0; @@ -1760,15 +1979,13 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) options = add_common_switch_branch_options(&opts, options); options = add_checkout_path_options(&opts, options); - ret = checkout_main(argc, argv, prefix, &opts, - options, checkout_usage); - FREE_AND_NULL(options); - return ret; + return checkout_main(argc, argv, prefix, &opts, options, + checkout_usage); } int cmd_switch(int argc, const char **argv, const char *prefix) { - struct checkout_opts opts; + struct checkout_opts opts = CHECKOUT_OPTS_INIT; struct option *options = NULL; struct option switch_options[] = { OPT_STRING('c', "create", &opts.new_branch, N_("branch"), @@ -1781,9 +1998,7 @@ int cmd_switch(int argc, const char **argv, const char *prefix) N_("throw away local modifications")), OPT_END() }; - int ret; - memset(&opts, 0, sizeof(opts)); opts.dwim_new_local_branch = 1; opts.accept_ref = 1; opts.accept_pathspec = 0; @@ -1798,15 +2013,15 @@ int cmd_switch(int argc, const char **argv, const char *prefix) options = add_common_options(&opts, options); options = add_common_switch_branch_options(&opts, options); - ret = checkout_main(argc, argv, prefix, &opts, - options, switch_branch_usage); - FREE_AND_NULL(options); - return ret; + cb_option = 'c'; + + return checkout_main(argc, argv, prefix, &opts, options, + switch_branch_usage); } int cmd_restore(int argc, const char **argv, const char *prefix) { - struct checkout_opts opts; + struct checkout_opts opts = CHECKOUT_OPTS_INIT; struct option *options; struct option restore_options[] = { OPT_STRING('s', "source", &opts.from_treeish, "<tree-ish>", @@ -1820,9 +2035,7 @@ int cmd_restore(int argc, const char **argv, const char *prefix) OPT_BOOL(0, "overlay", &opts.overlay_mode, N_("use overlay mode")), OPT_END() }; - int ret; - memset(&opts, 0, sizeof(opts)); opts.accept_ref = 0; opts.accept_pathspec = 1; opts.empty_pathspec_ok = 0; @@ -1835,8 +2048,6 @@ int cmd_restore(int argc, const char **argv, const char *prefix) options = add_common_options(&opts, options); options = add_checkout_path_options(&opts, options); - ret = checkout_main(argc, argv, prefix, &opts, - options, restore_usage); - FREE_AND_NULL(options); - return ret; + return checkout_main(argc, argv, prefix, &opts, options, + restore_usage); } |