diff options
| -rw-r--r-- | Documentation/git-checkout.txt | 10 | ||||
| -rw-r--r-- | builtin/checkout.c | 127 | ||||
| -rw-r--r-- | cache.h | 7 | ||||
| -rw-r--r-- | entry.c | 26 | ||||
| -rw-r--r-- | read-cache.c | 8 | ||||
| -rw-r--r-- | split-index.c | 2 | ||||
| -rwxr-xr-x | t/t2025-checkout-no-overlay.sh | 47 | ||||
| -rwxr-xr-x | t/t2400-worktree-add.sh (renamed from t/t2025-worktree-add.sh) | 0 | ||||
| -rwxr-xr-x | t/t2401-worktree-prune.sh (renamed from t/t2026-worktree-prune.sh) | 0 | ||||
| -rwxr-xr-x | t/t2402-worktree-list.sh (renamed from t/t2027-worktree-list.sh) | 0 | ||||
| -rwxr-xr-x | t/t2403-worktree-move.sh (renamed from t/t2028-worktree-move.sh) | 0 | ||||
| -rwxr-xr-x | t/t2404-worktree-config.sh (renamed from t/t2029-worktree-config.sh) | 0 | ||||
| -rwxr-xr-x | t/t9902-completion.sh | 1 | ||||
| -rw-r--r-- | unpack-trees.c | 21 |
14 files changed, 191 insertions, 58 deletions
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt index 8c3d4128c2..f179b43732 100644 --- a/Documentation/git-checkout.txt +++ b/Documentation/git-checkout.txt @@ -260,6 +260,9 @@ the conflicted merge in the specified paths. This means that you can use `git checkout -p` to selectively discard edits from your current working tree. See the ``Interactive Mode'' section of linkgit:git-add[1] to learn how to operate the `--patch` mode. ++ +Note that this option uses the no overlay mode by default (see also +`--[no-]overlay`), and currently doesn't support overlay mode. --ignore-other-worktrees:: `git checkout` refuses when the wanted ref is already checked @@ -280,6 +283,13 @@ section of linkgit:git-add[1] to learn how to operate the `--patch` mode. Do not attempt to create a branch if a remote tracking branch of the same name exists. +--[no-]overlay:: + In the default overlay mode, `git checkout` never + removes files from the index or the working tree. When + specifying `--no-overlay`, files that appear in the index and + working tree, but not in <tree-ish> are removed, to make them + match <tree-ish> exactly. + <branch>:: Branch to checkout; if it refers to a branch (i.e., a name that, when prepended with "refs/heads/", is a valid ref), then that diff --git a/builtin/checkout.c b/builtin/checkout.c index 24b8593b93..bea08ef959 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -46,6 +46,7 @@ struct checkout_opts { int ignore_other_worktrees; int show_progress; int count_checkout_paths; + int overlay_mode; /* * If new checkout options are added, skip_merge_working_tree * should be updated accordingly. @@ -135,7 +136,8 @@ static int skip_same_name(const struct cache_entry *ce, int pos) return pos; } -static int check_stage(int stage, 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)) { @@ -143,6 +145,8 @@ static int check_stage(int stage, const struct cache_entry *ce, int pos) return 0; pos++; } + if (!overlay_mode) + return 0; if (stage == 2) return error(_("path '%s' does not have our version"), ce->name); else @@ -168,7 +172,8 @@ static int check_stages(unsigned stages, const struct cache_entry *ce, int pos) } static int checkout_stage(int stage, const struct cache_entry *ce, int pos, - const struct checkout *state, int *nr_checkouts) + const struct checkout *state, int *nr_checkouts, + int overlay_mode) { while (pos < active_nr && !strcmp(active_cache[pos]->name, ce->name)) { @@ -177,6 +182,10 @@ static int checkout_stage(int stage, const struct cache_entry *ce, int pos, NULL, nr_checkouts); pos++; } + if (!overlay_mode) { + unlink_entry(ce); + return 0; + } if (stage == 2) return error(_("path '%s' does not have our version"), ce->name); else @@ -251,6 +260,59 @@ static int checkout_merged(int pos, const struct checkout *state, int *nr_checko return status; } +static void mark_ce_for_checkout_overlay(struct cache_entry *ce, + char *ps_matched, + const struct checkout_opts *opts) +{ + ce->ce_flags &= ~CE_MATCHED; + if (!opts->ignore_skipworktree && ce_skip_worktree(ce)) + return; + if (opts->source_tree && !(ce->ce_flags & CE_UPDATE)) + /* + * "git checkout tree-ish -- path", but this entry + * is in the original index but is not in tree-ish + * or does not match the pathspec; it will not be + * checked out to the working tree. We will not do + * anything to this entry at all. + */ + return; + /* + * Either this entry came from the tree-ish we are + * checking the paths out of, or we are checking out + * of the index. + * + * 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 + * eventually tree_entry_interesting) cannot fill + * ps_matched yet. Once it can, we can avoid calling + * match_pathspec() for _all_ entries when + * opts->source_tree != NULL. + */ + if (ce_path_match(&the_index, ce, &opts->pathspec, ps_matched)) + ce->ce_flags |= CE_MATCHED; +} + +static void mark_ce_for_checkout_no_overlay(struct cache_entry *ce, + char *ps_matched, + const struct checkout_opts *opts) +{ + ce->ce_flags &= ~CE_MATCHED; + if (!opts->ignore_skipworktree && ce_skip_worktree(ce)) + return; + if (ce_path_match(&the_index, ce, &opts->pathspec, ps_matched)) { + ce->ce_flags |= CE_MATCHED; + if (opts->source_tree && !(ce->ce_flags & CE_UPDATE)) + /* + * In overlay mode, but the path is not in + * tree-ish, which means we should remove it + * from the index and the working tree. + */ + ce->ce_flags |= CE_REMOVE | CE_WT_REMOVE; + } +} + static int checkout_paths(const struct checkout_opts *opts, const char *revision) { @@ -302,37 +364,15 @@ 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++) { - struct cache_entry *ce = active_cache[pos]; - ce->ce_flags &= ~CE_MATCHED; - if (!opts->ignore_skipworktree && ce_skip_worktree(ce)) - continue; - if (opts->source_tree && !(ce->ce_flags & CE_UPDATE)) - /* - * "git checkout tree-ish -- path", but this entry - * is in the original index; it will not be checked - * out to the working tree and it does not matter - * if pathspec matched this entry. We will not do - * anything to this entry at all. - */ - continue; - /* - * Either this entry came from the tree-ish we are - * checking the paths out of, or we are checking out - * of the index. - * - * 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 - * eventually tree_entry_interesting) cannot fill - * ps_matched yet. Once it can, we can avoid calling - * match_pathspec() for _all_ entries when - * opts->source_tree != NULL. - */ - if (ce_path_match(&the_index, ce, &opts->pathspec, ps_matched)) - ce->ce_flags |= CE_MATCHED; - } + for (pos = 0; pos < active_nr; pos++) + if (opts->overlay_mode) + mark_ce_for_checkout_overlay(active_cache[pos], + ps_matched, + opts); + else + mark_ce_for_checkout_no_overlay(active_cache[pos], + ps_matched, + opts); if (report_path_error(ps_matched, &opts->pathspec, opts->prefix)) { free(ps_matched); @@ -353,7 +393,7 @@ static int checkout_paths(const struct checkout_opts *opts, if (opts->force) { warning(_("path '%s' is unmerged"), ce->name); } else if (opts->writeout_stage) { - errs |= check_stage(opts->writeout_stage, ce, pos); + errs |= check_stage(opts->writeout_stage, ce, pos, opts->overlay_mode); } else if (opts->merge) { errs |= check_stages((1<<2) | (1<<3), ce, pos); } else { @@ -383,13 +423,16 @@ static int checkout_paths(const struct checkout_opts *opts, if (opts->writeout_stage) errs |= checkout_stage(opts->writeout_stage, ce, pos, - &state, &nr_checkouts); + &state, + &nr_checkouts, opts->overlay_mode); else if (opts->merge) errs |= checkout_merged(pos, &state, &nr_unmerged); pos = skip_same_name(ce, pos) - 1; } } + remove_marked_cache_entries(&the_index, 1); + remove_scheduled_dirs(); errs |= finish_delayed_checkout(&state, &nr_checkouts); if (opts->count_checkout_paths) { @@ -572,6 +615,11 @@ static int skip_merge_working_tree(const struct checkout_opts *opts, */ /* + * opts->overlay_mode cannot be used with switching branches so is + * not tested here + */ + + /* * If we aren't creating a new branch any changes or updates will * happen in the existing branch. Since that could only be updating * the index and working directory, we don't want to skip those steps @@ -1224,6 +1272,10 @@ static int checkout_branch(struct checkout_opts *opts, die(_("'%s' cannot be used with switching branches"), "--patch"); + if (!opts->overlay_mode) + die(_("'%s' cannot be used with switching branches"), + "--no-overlay"); + if (opts->writeout_stage) die(_("'%s' cannot be used with switching branches"), "--ours/--theirs"); @@ -1312,6 +1364,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) "checkout", "control recursive updating of submodules", PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater }, OPT_BOOL(0, "progress", &opts.show_progress, N_("force progress reporting")), + OPT_BOOL(0, "overlay", &opts.overlay_mode, N_("use overlay mode (default)")), OPT_END(), }; @@ -1320,6 +1373,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) opts.overwrite_ignore = 1; opts.prefix = prefix; opts.show_progress = -1; + opts.overlay_mode = -1; git_config(git_checkout_config, &opts); @@ -1344,6 +1398,9 @@ int cmd_checkout(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")); + if (opts.overlay_mode == 1 && opts.patch_mode) + die(_("-p and --overlay are mutually exclusive")); + /* * 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 @@ -758,7 +758,7 @@ extern void rename_index_entry_at(struct index_state *, int pos, const char *new /* Remove entry, return true if there are more entries to go. */ extern int remove_index_entry_at(struct index_state *, int pos); -extern void remove_marked_cache_entries(struct index_state *istate); +extern void remove_marked_cache_entries(struct index_state *istate, int invalidate); extern int remove_file_from_index(struct index_state *, const char *path); #define ADD_CACHE_VERBOSE 1 #define ADD_CACHE_PRETEND 2 @@ -1569,6 +1569,11 @@ struct checkout { extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath, int *nr_checkouts); extern void enable_delayed_checkout(struct checkout *state); extern int finish_delayed_checkout(struct checkout *state, int *nr_checkouts); +/* + * Unlink the last component and schedule the leading directories for + * removal, such that empty directories get removed. + */ +extern void unlink_entry(const struct cache_entry *ce); struct cache_def { struct strbuf path; @@ -441,6 +441,17 @@ int checkout_entry(struct cache_entry *ce, const struct checkout *state, static struct strbuf path = STRBUF_INIT; struct stat st; + if (ce->ce_flags & CE_WT_REMOVE) { + if (topath) + /* + * No content and thus no path to create, so we have + * no pathname to return. + */ + BUG("Can't remove entry to a path"); + unlink_entry(ce); + return 0; + } + if (topath) return write_entry(ce, topath, state, 1); @@ -510,3 +521,18 @@ int checkout_entry(struct cache_entry *ce, const struct checkout *state, (*nr_checkouts)++; return write_entry(ce, path.buf, state, 0); } + +void unlink_entry(const struct cache_entry *ce) +{ + const struct submodule *sub = submodule_from_ce(ce); + if (sub) { + /* state.force is set at the caller. */ + submodule_move_head(ce->name, "HEAD", NULL, + SUBMODULE_MOVE_HEAD_FORCE); + } + if (!check_leading_path(ce->name, ce_namelen(ce))) + return; + if (remove_or_warn(ce->ce_mode, ce->name)) + return; + schedule_dir_for_removal(ce->name, ce_namelen(ce)); +} diff --git a/read-cache.c b/read-cache.c index 0e0c93edc9..75ff234fc8 100644 --- a/read-cache.c +++ b/read-cache.c @@ -588,13 +588,19 @@ int remove_index_entry_at(struct index_state *istate, int pos) * CE_REMOVE is set in ce_flags. This is much more effective than * calling remove_index_entry_at() for each entry to be removed. */ -void remove_marked_cache_entries(struct index_state *istate) +void remove_marked_cache_entries(struct index_state *istate, int invalidate) { struct cache_entry **ce_array = istate->cache; unsigned int i, j; for (i = j = 0; i < istate->cache_nr; i++) { if (ce_array[i]->ce_flags & CE_REMOVE) { + if (invalidate) { + cache_tree_invalidate_path(istate, + ce_array[i]->name); + untracked_cache_remove_from_index(istate, + ce_array[i]->name); + } remove_name_hash(istate, ce_array[i]); save_or_free_index_entry(istate, ce_array[i]); } diff --git a/split-index.c b/split-index.c index 5820412dc5..8aebc3661b 100644 --- a/split-index.c +++ b/split-index.c @@ -162,7 +162,7 @@ void merge_base_index(struct index_state *istate) ewah_each_bit(si->replace_bitmap, replace_entry, istate); ewah_each_bit(si->delete_bitmap, mark_entry_for_delete, istate); if (si->nr_deletions) - remove_marked_cache_entries(istate); + remove_marked_cache_entries(istate, 0); for (i = si->nr_replacements; i < si->saved_cache_nr; i++) { if (!ce_namelen(si->saved_cache[i])) diff --git a/t/t2025-checkout-no-overlay.sh b/t/t2025-checkout-no-overlay.sh new file mode 100755 index 0000000000..76330cb5ab --- /dev/null +++ b/t/t2025-checkout-no-overlay.sh @@ -0,0 +1,47 @@ +#!/bin/sh + +test_description='checkout --no-overlay <tree-ish> -- <pathspec>' + +. ./test-lib.sh + +test_expect_success 'setup' ' + git commit --allow-empty -m "initial" +' + +test_expect_success 'checkout --no-overlay deletes files not in <tree-ish>' ' + >file && + mkdir dir && + >dir/file1 && + git add file dir/file1 && + git checkout --no-overlay HEAD -- file && + test_path_is_missing file && + test_path_is_file dir/file1 +' + +test_expect_success 'checkout --no-overlay removing last file from directory' ' + git checkout --no-overlay HEAD -- dir/file1 && + test_path_is_missing dir +' + +test_expect_success 'checkout -p --overlay is disallowed' ' + test_must_fail git checkout -p --overlay HEAD 2>actual && + test_i18ngrep "fatal: -p and --overlay are mutually exclusive" actual +' + +test_expect_success '--no-overlay --theirs with D/F conflict deletes file' ' + test_commit file1 file1 && + test_commit file2 file2 && + git rm --cached file1 && + echo 1234 >file1 && + F1=$(git rev-parse HEAD:file1) && + F2=$(git rev-parse HEAD:file2) && + { + echo "100644 $F1 1 file1" && + echo "100644 $F2 2 file1" + } | git update-index --index-info && + test_path_is_file file1 && + git checkout --theirs --no-overlay -- file1 && + test_path_is_missing file1 +' + +test_done diff --git a/t/t2025-worktree-add.sh b/t/t2400-worktree-add.sh index 286bba35d8..286bba35d8 100755 --- a/t/t2025-worktree-add.sh +++ b/t/t2400-worktree-add.sh diff --git a/t/t2026-worktree-prune.sh b/t/t2401-worktree-prune.sh index b7d6d5d45a..b7d6d5d45a 100755 --- a/t/t2026-worktree-prune.sh +++ b/t/t2401-worktree-prune.sh diff --git a/t/t2027-worktree-list.sh b/t/t2402-worktree-list.sh index bb6fb9b12c..bb6fb9b12c 100755 --- a/t/t2027-worktree-list.sh +++ b/t/t2402-worktree-list.sh diff --git a/t/t2028-worktree-move.sh b/t/t2403-worktree-move.sh index 939d18d728..939d18d728 100755 --- a/t/t2028-worktree-move.sh +++ b/t/t2403-worktree-move.sh diff --git a/t/t2029-worktree-config.sh b/t/t2404-worktree-config.sh index 286121d8de..286121d8de 100755 --- a/t/t2029-worktree-config.sh +++ b/t/t2404-worktree-config.sh diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh index 3a2c6326d8..f5e21bf970 100755 --- a/t/t9902-completion.sh +++ b/t/t9902-completion.sh @@ -1437,6 +1437,7 @@ test_expect_success 'double dash "git checkout"' ' --guess Z --no-guess Z --no-... Z + --overlay Z EOF ' diff --git a/unpack-trees.c b/unpack-trees.c index 3563daae1a..22c41a3ba8 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -299,25 +299,6 @@ static void load_gitmodules_file(struct index_state *index, } } -/* - * Unlink the last component and schedule the leading directories for - * removal, such that empty directories get removed. - */ -static void unlink_entry(const struct cache_entry *ce) -{ - const struct submodule *sub = submodule_from_ce(ce); - if (sub) { - /* state.force is set at the caller. */ - submodule_move_head(ce->name, "HEAD", NULL, - SUBMODULE_MOVE_HEAD_FORCE); - } - if (!check_leading_path(ce->name, ce_namelen(ce))) - return; - if (remove_or_warn(ce->ce_mode, ce->name)) - return; - schedule_dir_for_removal(ce->name, ce_namelen(ce)); -} - static struct progress *get_progress(struct unpack_trees_options *o) { unsigned cnt = 0, total = 0; @@ -410,7 +391,7 @@ static int check_updates(struct unpack_trees_options *o) unlink_entry(ce); } } - remove_marked_cache_entries(index); + remove_marked_cache_entries(index, 0); remove_scheduled_dirs(); if (should_update_submodules() && o->update && !o->dry_run) |