rev-list: disable object/refname ambiguity check with --stdin
[gitweb.git] / builtin / checkout.c
index c98008ab488b7321bd76f83041dc679f919fe7c4..54f80bd38a7413390ed2093a626b129a1a3e8e7f 100644 (file)
@@ -46,7 +46,7 @@ struct checkout_opts {
 
        int branch_exists;
        const char *prefix;
-       const char **pathspec;
+       struct pathspec pathspec;
        struct tree *source_tree;
 };
 
@@ -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
@@ -97,7 +94,7 @@ static int read_tree_some(struct tree *tree, const char **pathspec)
        return 0;
 }
 
-static int skip_same_name(struct cache_entry *ce, int pos)
+static int skip_same_name(const struct cache_entry *ce, int pos)
 {
        while (++pos < active_nr &&
               !strcmp(active_cache[pos]->name, ce->name))
@@ -105,7 +102,7 @@ static int skip_same_name(struct cache_entry *ce, int pos)
        return pos;
 }
 
-static int check_stage(int stage, struct cache_entry *ce, int pos)
+static int check_stage(int stage, const struct cache_entry *ce, int pos)
 {
        while (pos < active_nr &&
               !strcmp(active_cache[pos]->name, ce->name)) {
@@ -119,7 +116,7 @@ static int check_stage(int stage, struct cache_entry *ce, int pos)
                return error(_("path '%s' does not have their version"), ce->name);
 }
 
-static int check_stages(unsigned stages, struct cache_entry *ce, int pos)
+static int check_stages(unsigned stages, const struct cache_entry *ce, int pos)
 {
        unsigned seen = 0;
        const char *name = ce->name;
@@ -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 +297,12 @@ 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),
+               if (match_pathspec_depth(&opts->pathspec, ce->name, ce_namelen(ce),
                                   0, 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;
        }
@@ -321,14 +314,14 @@ static int checkout_paths(const struct checkout_opts *opts,
 
        /* Any unmerged paths? */
        for (pos = 0; pos < active_nr; pos++) {
-               struct cache_entry *ce = active_cache[pos];
+               const struct cache_entry *ce = active_cache[pos];
                if (ce->ce_flags & CE_MATCHED) {
                        if (!ce_stage(ce))
                                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 +345,9 @@ 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;
                }
@@ -587,7 +580,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
                                   struct branch_info *new)
 {
        struct strbuf msg = STRBUF_INIT;
-       const char *old_desc;
+       const char *old_desc, *reflog_msg;
        if (opts->new_branch) {
                if (opts->new_orphan_branch) {
                        if (opts->new_branch_log && !log_all_ref_updates) {
@@ -620,8 +613,13 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
        old_desc = old->name;
        if (!old_desc && old->commit)
                old_desc = sha1_to_hex(old->commit->object.sha1);
-       strbuf_addf(&msg, "checkout: moving from %s to %s",
-                   old_desc ? old_desc : "(invalid)", new->name);
+
+       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);
+       else
+               strbuf_insert(&msg, 0, reflog_msg, strlen(reflog_msg));
 
        if (!strcmp(new->name, "HEAD") && !new->path && !opts->force_detach) {
                /* Nothing to do. */
@@ -838,13 +836,16 @@ static int check_tracking_name(struct remote *remote, void *cb_data)
        memset(&query, 0, sizeof(struct refspec));
        query.src = cb->src_ref;
        if (remote_find_tracking(remote, &query) ||
-           get_sha1(query.dst, cb->dst_sha1))
+           get_sha1(query.dst, cb->dst_sha1)) {
+               free(query.dst);
                return 0;
+       }
        if (cb->dst_ref) {
+               free(query.dst);
                cb->unique = 0;
                return 0;
        }
-       cb->dst_ref = xstrdup(query.dst);
+       cb->dst_ref = query.dst;
        return 0;
 }
 
@@ -872,7 +873,9 @@ 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>]
@@ -916,11 +919,20 @@ 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}";
@@ -1026,7 +1038,7 @@ 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)
@@ -1080,8 +1092,8 @@ 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")),
@@ -1090,16 +1102,15 @@ 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(),
        };
 
@@ -1178,9 +1189,11 @@ 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"));
 
                /*
@@ -1212,7 +1225,7 @@ 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);