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author | Paul Sherwood <paul.sherwood@codethink.co.uk> | 2014-04-29 20:37:28 +0000 |
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committer | Paul Sherwood <paul.sherwood@codethink.co.uk> | 2014-04-29 20:37:28 +0000 |
commit | e98c205a5c3fb893ffdda3f5e05d1967b4a79c1d (patch) | |
tree | 3ecbd4f05ab9601cefa7b322323039795db440a9 /builtin/checkout.c | |
parent | 43efcf42382e87de4aa423e5e1607958ad1717d0 (diff) | |
parent | 0bc85abb7aa9b24b093253018801a0fb43d01122 (diff) | |
download | git-e98c205a5c3fb893ffdda3f5e05d1967b4a79c1d.tar.gz |
Merge tag 'v1.9.2' into HEADbaserock/ps/update-git
Git 1.9.2
Diffstat (limited to 'builtin/checkout.c')
-rw-r--r-- | builtin/checkout.c | 188 |
1 files changed, 112 insertions, 76 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c index 7025938ae3..63151e08a4 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -46,17 +46,17 @@ struct checkout_opts { int branch_exists; const char *prefix; - const char **pathspec; + struct pathspec pathspec; struct tree *source_tree; }; static int post_checkout_hook(struct commit *old, struct commit *new, int changed) { - return run_hook(NULL, "post-checkout", - sha1_to_hex(old ? old->object.sha1 : null_sha1), - sha1_to_hex(new ? new->object.sha1 : null_sha1), - changed ? "1" : "0", NULL); + return run_hook_le(NULL, "post-checkout", + sha1_to_hex(old ? old->object.sha1 : null_sha1), + sha1_to_hex(new ? new->object.sha1 : null_sha1), + changed ? "1" : "0", NULL); /* "new" can be NULL when checking out from the index before a commit exists. */ @@ -83,12 +83,9 @@ static int update_some(const unsigned char *sha1, const char *base, int baselen, return 0; } -static int read_tree_some(struct tree *tree, const char **pathspec) +static int read_tree_some(struct tree *tree, const struct pathspec *pathspec) { - struct pathspec ps; - init_pathspec(&ps, pathspec); - read_tree_recursive(tree, "", 0, 0, &ps, update_some, NULL); - free_pathspec(&ps); + read_tree_recursive(tree, "", 0, 0, pathspec, update_some, NULL); /* update the index with the given tree's info * for all args, expanding wildcards, and exit @@ -228,8 +225,6 @@ static int checkout_paths(const struct checkout_opts *opts, int flag; struct commit *head; int errs = 0; - int stage = opts->writeout_stage; - int merge = opts->merge; int newfd; struct lock_file *lock_file; @@ -257,20 +252,18 @@ static int checkout_paths(const struct checkout_opts *opts, if (opts->patch_mode) return run_add_interactive(revision, "--patch=checkout", - opts->pathspec); + &opts->pathspec); lock_file = xcalloc(1, sizeof(struct lock_file)); newfd = hold_locked_index(lock_file, 1); - if (read_cache_preload(opts->pathspec) < 0) + if (read_cache_preload(&opts->pathspec) < 0) return error(_("corrupt index file")); if (opts->source_tree) - read_tree_some(opts->source_tree, opts->pathspec); + read_tree_some(opts->source_tree, &opts->pathspec); - for (pos = 0; opts->pathspec[pos]; pos++) - ; - ps_matched = xcalloc(1, pos); + ps_matched = xcalloc(1, opts->pathspec.nr); /* * Make sure all pathspecs participated in locating the paths @@ -304,12 +297,11 @@ static int checkout_paths(const struct checkout_opts *opts, * match_pathspec() for _all_ entries when * opts->source_tree != NULL. */ - if (match_pathspec(opts->pathspec, ce->name, ce_namelen(ce), - 0, ps_matched)) + if (ce_path_match(ce, &opts->pathspec, ps_matched)) ce->ce_flags |= CE_MATCHED; } - if (report_path_error(ps_matched, opts->pathspec, opts->prefix)) { + if (report_path_error(ps_matched, &opts->pathspec, opts->prefix)) { free(ps_matched); return 1; } @@ -327,8 +319,8 @@ static int checkout_paths(const struct checkout_opts *opts, continue; if (opts->force) { warning(_("path '%s' is unmerged"), ce->name); - } else if (stage) { - errs |= check_stage(stage, ce, pos); + } else if (opts->writeout_stage) { + errs |= check_stage(opts->writeout_stage, ce, pos); } else if (opts->merge) { errs |= check_stages((1<<2) | (1<<3), ce, pos); } else { @@ -352,9 +344,9 @@ static int checkout_paths(const struct checkout_opts *opts, errs |= checkout_entry(ce, &state, NULL); continue; } - if (stage) - errs |= checkout_stage(stage, ce, pos, &state); - else if (merge) + if (opts->writeout_stage) + errs |= checkout_stage(opts->writeout_stage, ce, pos, &state); + else if (opts->merge) errs |= checkout_merged(pos, &state); pos = skip_same_name(ce, pos) - 1; } @@ -387,8 +379,8 @@ static void show_local_changes(struct object *head, static void describe_detached_head(const char *msg, struct commit *commit) { struct strbuf sb = STRBUF_INIT; - parse_commit(commit); - pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb); + if (!parse_commit(commit)) + pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb); fprintf(stderr, "%s %s... %s\n", msg, find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV), sb.buf); strbuf_release(&sb); @@ -684,12 +676,12 @@ static int add_pending_uninteresting_ref(const char *refname, static void describe_one_orphan(struct strbuf *sb, struct commit *commit) { - parse_commit(commit); strbuf_addstr(sb, " "); strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV)); strbuf_addch(sb, ' '); - pp_commit_easy(CMIT_FMT_ONELINE, commit, sb); + if (!parse_commit(commit)) + pp_commit_easy(CMIT_FMT_ONELINE, commit, sb); strbuf_addch(sb, '\n'); } @@ -788,7 +780,7 @@ static int switch_branches(const struct checkout_opts *opts, if (!(flag & REF_ISSYMREF)) old.path = NULL; - if (old.path && !prefixcmp(old.path, "refs/heads/")) + if (old.path && starts_with(old.path, "refs/heads/")) old.name = old.path + strlen("refs/heads/"); if (!new->name) { @@ -796,7 +788,7 @@ static int switch_branches(const struct checkout_opts *opts, new->commit = old.commit; if (!new->commit) die(_("You are on a branch yet to be born")); - parse_commit(new->commit); + parse_commit_or_die(new->commit); } ret = merge_working_tree(opts, &old, new, &writeout_error); @@ -823,7 +815,7 @@ static int git_checkout_config(const char *var, const char *value, void *cb) return 0; } - if (!prefixcmp(var, "submodule.")) + if (starts_with(var, "submodule.")) return parse_submodule_config_option(var, value); return git_xmerge_config(var, value, NULL); @@ -880,7 +872,9 @@ static int parse_branchname_arg(int argc, const char **argv, int argcount = 0; unsigned char branch_rev[20]; const char *arg; - int has_dash_dash; + int dash_dash_pos; + int has_dash_dash = 0; + int i; /* * case 1: git checkout <ref> -- [<paths>] @@ -892,20 +886,30 @@ static int parse_branchname_arg(int argc, const char **argv, * * everything after the '--' must be paths. * - * case 3: git checkout <something> [<paths>] + * case 3: git checkout <something> [--] * - * With no paths, if <something> is a commit, that is to - * switch to the branch or detach HEAD at it. As a special case, - * if <something> is A...B (missing A or B means HEAD but you can - * omit at most one side), and if there is a unique merge base - * between A and B, A...B names that merge base. + * (a) If <something> is a commit, that is to + * switch to the branch or detach HEAD at it. As a special case, + * if <something> is A...B (missing A or B means HEAD but you can + * omit at most one side), and if there is a unique merge base + * between A and B, A...B names that merge base. * - * With no paths, if <something> is _not_ a commit, no -t nor -b - * was given, and there is a tracking branch whose name is - * <something> in one and only one remote, then this is a short-hand - * to fork local <something> from that remote-tracking branch. + * (b) If <something> is _not_ a commit, either "--" is present + * or <something> is not a path, no -t or -b was given, and + * and there is a tracking branch whose name is <something> + * in one and only one remote, then this is a short-hand to + * fork local <something> from that remote-tracking branch. * - * Otherwise <something> shall not be ambiguous. + * (c) Otherwise, if "--" is present, treat it like case (1). + * + * (d) Otherwise : + * - if it's a reference, treat it like case (1) + * - else if it's a path, treat it like case (2) + * - else: fail. + * + * case 4: git checkout <something> <paths> + * + * The first argument must not be ambiguous. * - If it's *only* a reference, treat it like case (1). * - If it's only a path, treat it like case (2). * - else: fail. @@ -914,28 +918,59 @@ static int parse_branchname_arg(int argc, const char **argv, if (!argc) return 0; - if (!strcmp(argv[0], "--")) /* case (2) */ - return 1; - arg = argv[0]; - has_dash_dash = (argc > 1) && !strcmp(argv[1], "--"); + dash_dash_pos = -1; + for (i = 0; i < argc; i++) { + if (!strcmp(argv[i], "--")) { + dash_dash_pos = i; + break; + } + } + if (dash_dash_pos == 0) + return 1; /* case (2) */ + else if (dash_dash_pos == 1) + has_dash_dash = 1; /* case (3) or (1) */ + else if (dash_dash_pos >= 2) + die(_("only one reference expected, %d given."), dash_dash_pos); if (!strcmp(arg, "-")) arg = "@{-1}"; if (get_sha1_mb(arg, rev)) { - if (has_dash_dash) /* case (1) */ - die(_("invalid reference: %s"), arg); - if (dwim_new_local_branch_ok && - !check_filename(NULL, arg) && - argc == 1) { + /* + * Either case (3) or (4), with <something> not being + * a commit, or an attempt to use case (1) with an + * invalid ref. + * + * It's likely an error, but we need to find out if + * we should auto-create the branch, case (3).(b). + */ + int recover_with_dwim = dwim_new_local_branch_ok; + + if (check_filename(NULL, arg) && !has_dash_dash) + recover_with_dwim = 0; + /* + * Accept "git checkout foo" and "git checkout foo --" + * as candidates for dwim. + */ + if (!(argc == 1 && !has_dash_dash) && + !(argc == 2 && has_dash_dash)) + recover_with_dwim = 0; + + if (recover_with_dwim) { const char *remote = unique_tracking_name(arg, rev); - if (!remote) - return argcount; - *new_branch = arg; - arg = remote; - /* DWIMmed to create local branch */ - } else { + if (remote) { + *new_branch = arg; + arg = remote; + /* DWIMmed to create local branch, case (3).(b) */ + } else { + recover_with_dwim = 0; + } + } + + if (!recover_with_dwim) { + if (has_dash_dash) + die(_("invalid reference: %s"), arg); return argcount; } } @@ -959,13 +994,13 @@ static int parse_branchname_arg(int argc, const char **argv, /* not a commit */ *source_tree = parse_tree_indirect(rev); } else { - parse_commit(new->commit); + parse_commit_or_die(new->commit); *source_tree = new->commit->tree; } if (!*source_tree) /* case (1): want a tree */ die(_("reference is not a tree: %s"), arg); - if (!has_dash_dash) {/* case (3 -> 1) */ + if (!has_dash_dash) {/* case (3).(d) -> (1) */ /* * Do not complain the most common case * git checkout branch @@ -1002,7 +1037,7 @@ static int switch_unborn_to_new_branch(const struct checkout_opts *opts) static int checkout_branch(struct checkout_opts *opts, struct branch_info *new) { - if (opts->pathspec) + if (opts->pathspec.nr) die(_("paths cannot be used with switching branches")); if (opts->patch_mode) @@ -1056,8 +1091,8 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) N_("create and checkout a new branch")), OPT_STRING('B', NULL, &opts.new_branch_force, N_("branch"), N_("create/reset and checkout a branch")), - OPT_BOOLEAN('l', NULL, &opts.new_branch_log, N_("create reflog for new branch")), - OPT_BOOLEAN(0, "detach", &opts.force_detach, N_("detach the HEAD at named commit")), + OPT_BOOL('l', NULL, &opts.new_branch_log, N_("create reflog for new branch")), + OPT_BOOL(0, "detach", &opts.force_detach, N_("detach the HEAD at named commit")), OPT_SET_INT('t', "track", &opts.track, N_("set upstream info for new branch"), BRANCH_TRACK_EXPLICIT), OPT_STRING(0, "orphan", &opts.new_orphan_branch, N_("new branch"), N_("new unparented branch")), @@ -1066,16 +1101,15 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) 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_BOOLEAN('m', "merge", &opts.merge, N_("perform a 3-way merge with the new branch")), - OPT_BOOLEAN(0, "overwrite-ignore", &opts.overwrite_ignore, N_("update ignored files (default)")), + 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_STRING(0, "conflict", &conflict_style, N_("style"), N_("conflict style (merge or diff3)")), - OPT_BOOLEAN('p', "patch", &opts.patch_mode, N_("select hunks interactively")), + OPT_BOOL('p', "patch", &opts.patch_mode, N_("select hunks interactively")), OPT_BOOL(0, "ignore-skip-worktree-bits", &opts.ignore_skipworktree, N_("do not limit pathspecs to sparse entries only")), - { OPTION_BOOLEAN, 0, "guess", &dwim_new_local_branch, NULL, - N_("second guess 'git checkout no-such-branch'"), - PARSE_OPT_NOARG | PARSE_OPT_HIDDEN }, + OPT_HIDDEN_BOOL(0, "guess", &dwim_new_local_branch, + N_("second guess 'git checkout no-such-branch'")), OPT_END(), }; @@ -1116,9 +1150,9 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) const char *argv0 = argv[0]; if (!argc || !strcmp(argv0, "--")) die (_("--track needs a branch name")); - if (!prefixcmp(argv0, "refs/")) + if (starts_with(argv0, "refs/")) argv0 += 5; - if (!prefixcmp(argv0, "remotes/")) + if (starts_with(argv0, "remotes/")) argv0 += 8; argv0 = strchr(argv0, '/'); if (!argv0 || !argv0[1]) @@ -1154,9 +1188,11 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) } if (argc) { - opts.pathspec = get_pathspec(prefix, argv); + parse_pathspec(&opts.pathspec, 0, + opts.patch_mode ? PATHSPEC_PREFIX_ORIGIN : 0, + prefix, argv); - if (!opts.pathspec) + if (!opts.pathspec.nr) die(_("invalid path specification")); /* @@ -1188,7 +1224,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) strbuf_release(&buf); } - if (opts.patch_mode || opts.pathspec) + if (opts.patch_mode || opts.pathspec.nr) return checkout_paths(&opts, new.name); else return checkout_branch(&opts, &new); |