Merge branch 'js/close-packs-before-gc'
[gitweb.git] / builtin / checkout.c
index 3b6e4999299484d30a41e0d787086a367ee70e5c..ea2fe1cf3fc251dcab2f2d70e737a0f8f5000a21 100644 (file)
@@ -18,6 +18,7 @@
 #include "xdiff-interface.h"
 #include "ll-merge.h"
 #include "resolve-undo.h"
+#include "submodule-config.h"
 #include "submodule.h"
 
 static const char * const checkout_usage[] = {
@@ -36,6 +37,7 @@ struct checkout_opts {
        int overwrite_ignore;
        int ignore_skipworktree;
        int ignore_other_worktrees;
+       int show_progress;
 
        const char *new_branch;
        const char *new_branch_force;
@@ -48,16 +50,14 @@ struct checkout_opts {
        const char *prefix;
        struct pathspec pathspec;
        struct tree *source_tree;
-
-       int new_worktree_mode;
 };
 
 static int post_checkout_hook(struct commit *old, struct commit *new,
                              int changed)
 {
        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),
+                          sha1_to_hex(old ? old->object.oid.hash : null_sha1),
+                          sha1_to_hex(new ? new->object.oid.hash : null_sha1),
                           changed ? "1" : "0", NULL);
        /* "new" can be NULL when checking out from the index before
           a commit exists. */
@@ -242,7 +242,6 @@ static int checkout_paths(const struct checkout_opts *opts,
        struct checkout state;
        static char *ps_matched;
        unsigned char rev[20];
-       int flag;
        struct commit *head;
        int errs = 0;
        struct lock_file *lock_file;
@@ -375,7 +374,7 @@ static int checkout_paths(const struct checkout_opts *opts,
        if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
                die(_("unable to write new index file"));
 
-       read_ref_full("HEAD", 0, rev, &flag);
+       read_ref_full("HEAD", 0, rev, NULL);
        head = lookup_commit_reference_gently(rev, 1);
 
        errs |= post_checkout_hook(head, head, 0);
@@ -401,7 +400,7 @@ static void describe_detached_head(const char *msg, struct commit *commit)
        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);
+               find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV), sb.buf);
        strbuf_release(&sb);
 }
 
@@ -418,7 +417,7 @@ static int reset_tree(struct tree *tree, const struct checkout_opts *o,
        opts.reset = 1;
        opts.merge = 1;
        opts.fn = oneway_merge;
-       opts.verbose_update = !o->quiet && isatty(2);
+       opts.verbose_update = o->show_progress;
        opts.src_index = &the_index;
        opts.dst_index = &the_index;
        parse_tree(tree);
@@ -502,18 +501,18 @@ static int merge_working_tree(const struct checkout_opts *opts,
                topts.update = 1;
                topts.merge = 1;
                topts.gently = opts->merge && old->commit;
-               topts.verbose_update = !opts->quiet && isatty(2);
+               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->commit && !opts->new_worktree_mode ?
-                                          old->commit->object.sha1 :
+               tree = parse_tree_indirect(old->commit ?
+                                          old->commit->object.oid.hash :
                                           EMPTY_TREE_SHA1_BIN);
                init_tree_desc(&trees[0], tree->buffer, tree->size);
-               tree = parse_tree_indirect(new->commit->object.sha1);
+               tree = parse_tree_indirect(new->commit->object.oid.hash);
                init_tree_desc(&trees[1], tree->buffer, tree->size);
 
                ret = unpack_trees(2, trees, &topts);
@@ -612,22 +611,20 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
        if (opts->new_branch) {
                if (opts->new_orphan_branch) {
                        if (opts->new_branch_log && !log_all_ref_updates) {
-                               int temp;
-                               struct strbuf log_file = STRBUF_INIT;
                                int ret;
-                               const char *ref_name;
-
-                               ref_name = mkpath("refs/heads/%s", opts->new_orphan_branch);
-                               temp = log_all_ref_updates;
-                               log_all_ref_updates = 1;
-                               ret = log_ref_setup(ref_name, &log_file);
-                               log_all_ref_updates = temp;
-                               strbuf_release(&log_file);
+                               char *refname;
+                               struct strbuf err = STRBUF_INIT;
+
+                               refname = mkpathdup("refs/heads/%s", opts->new_orphan_branch);
+                               ret = safe_create_reflog(refname, 1, &err);
+                               free(refname);
                                if (ret) {
-                                       fprintf(stderr, _("Can not do reflog for '%s'\n"),
-                                           opts->new_orphan_branch);
+                                       fprintf(stderr, _("Can not do reflog for '%s': %s\n"),
+                                               opts->new_orphan_branch, err.buf);
+                                       strbuf_release(&err);
                                        return;
                                }
+                               strbuf_release(&err);
                        }
                }
                else
@@ -643,7 +640,7 @@ 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);
+               old_desc = oid_to_hex(&old->commit->object.oid);
 
        reflog_msg = getenv("GIT_REFLOG_ACTION");
        if (!reflog_msg)
@@ -655,7 +652,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
        if (!strcmp(new->name, "HEAD") && !new->path && !opts->force_detach) {
                /* Nothing to do. */
        } else if (opts->force_detach || !new->path) {  /* No longer on any branch. */
-               update_ref(msg.buf, "HEAD", new->commit->object.sha1, NULL,
+               update_ref(msg.buf, "HEAD", new->commit->object.oid.hash, NULL,
                           REF_NODEREF, UPDATE_REFS_DIE_ON_ERR);
                if (!opts->quiet) {
                        if (old->path && advice_detached_head)
@@ -663,7 +660,8 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
                        describe_detached_head(_("HEAD is now at"), new->commit);
                }
        } else if (new->path) { /* Switch branches. */
-               create_symref("HEAD", new->path, msg.buf);
+               if (create_symref("HEAD", new->path, msg.buf) < 0)
+                       die(_("unable to update HEAD"));
                if (!opts->quiet) {
                        if (old->path && !strcmp(new->path, old->path)) {
                                if (opts->new_branch_force)
@@ -706,7 +704,7 @@ static void describe_one_orphan(struct strbuf *sb, struct commit *commit)
 {
        strbuf_addstr(sb, "  ");
        strbuf_addstr(sb,
-               find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV));
+               find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV));
        strbuf_addch(sb, ' ');
        if (!parse_commit(commit))
                pp_commit_easy(CMIT_FMT_ONELINE, commit, sb);
@@ -764,7 +762,7 @@ 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.sha1, DEFAULT_ABBREV));
+                       find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV));
 }
 
 /*
@@ -782,10 +780,10 @@ static void orphaned_commit_warning(struct commit *old, struct commit *new)
        setup_revisions(0, NULL, &revs, NULL);
 
        object->flags &= ~UNINTERESTING;
-       add_pending_object(&revs, object, sha1_to_hex(object->sha1));
+       add_pending_object(&revs, object, oid_to_hex(&object->oid));
 
        for_each_ref(add_pending_uninteresting_ref, &revs);
-       add_pending_sha1(&revs, "HEAD", new->object.sha1, UNINTERESTING);
+       add_pending_sha1(&revs, "HEAD", new->object.oid.hash, UNINTERESTING);
 
        refs = revs.pending;
        revs.leak_pending = 1;
@@ -832,8 +830,7 @@ static int switch_branches(const struct checkout_opts *opts,
                return ret;
        }
 
-       if (!opts->quiet && !old.path && old.commit &&
-           new->commit != old.commit && !opts->new_worktree_mode)
+       if (!opts->quiet && !old.path && old.commit && new->commit != old.commit)
                orphaned_commit_warning(old.commit, new->commit);
 
        update_refs_for_switch(opts, &old, new);
@@ -898,71 +895,6 @@ static const char *unique_tracking_name(const char *name, unsigned char *sha1)
        return NULL;
 }
 
-static void check_linked_checkout(struct branch_info *new, const char *id)
-{
-       struct strbuf sb = STRBUF_INIT;
-       struct strbuf path = STRBUF_INIT;
-       struct strbuf gitdir = STRBUF_INIT;
-       const char *start, *end;
-
-       if (id)
-               strbuf_addf(&path, "%s/worktrees/%s/HEAD", get_git_common_dir(), id);
-       else
-               strbuf_addf(&path, "%s/HEAD", get_git_common_dir());
-
-       if (strbuf_read_file(&sb, path.buf, 0) < 0 ||
-           !skip_prefix(sb.buf, "ref:", &start))
-               goto done;
-       while (isspace(*start))
-               start++;
-       end = start;
-       while (*end && !isspace(*end))
-               end++;
-       if (strncmp(start, new->path, end - start) || new->path[end - start] != '\0')
-               goto done;
-       if (id) {
-               strbuf_reset(&path);
-               strbuf_addf(&path, "%s/worktrees/%s/gitdir", get_git_common_dir(), id);
-               if (strbuf_read_file(&gitdir, path.buf, 0) <= 0)
-                       goto done;
-               strbuf_rtrim(&gitdir);
-       } else
-               strbuf_addstr(&gitdir, get_git_common_dir());
-       die(_("'%s' is already checked out at '%s'"), new->name, gitdir.buf);
-done:
-       strbuf_release(&path);
-       strbuf_release(&sb);
-       strbuf_release(&gitdir);
-}
-
-static void check_linked_checkouts(struct branch_info *new)
-{
-       struct strbuf path = STRBUF_INIT;
-       DIR *dir;
-       struct dirent *d;
-
-       strbuf_addf(&path, "%s/worktrees", get_git_common_dir());
-       if ((dir = opendir(path.buf)) == NULL) {
-               strbuf_release(&path);
-               return;
-       }
-
-       /*
-        * $GIT_COMMON_DIR/HEAD is practically outside
-        * $GIT_DIR so resolve_ref_unsafe() won't work (it
-        * uses git_path). Parse the ref ourselves.
-        */
-       check_linked_checkout(new, NULL);
-
-       while ((d = readdir(dir)) != NULL) {
-               if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
-                       continue;
-               check_linked_checkout(new, d->d_name);
-       }
-       strbuf_release(&path);
-       closedir(dir);
-}
-
 static int parse_branchname_arg(int argc, const char **argv,
                                int dwim_new_local_branch_ok,
                                struct branch_info *new,
@@ -1049,7 +981,8 @@ static int parse_branchname_arg(int argc, const char **argv,
                 */
                int recover_with_dwim = dwim_new_local_branch_ok;
 
-               if (check_filename(NULL, arg) && !has_dash_dash)
+               if (!has_dash_dash &&
+                   (check_filename(NULL, arg) || !no_wildcard(arg)))
                        recover_with_dwim = 0;
                /*
                 * Accept "git checkout foo" and "git checkout foo --"
@@ -1170,14 +1103,14 @@ static int checkout_branch(struct checkout_opts *opts,
                die(_("Cannot switch branch to a non-commit '%s'"),
                    new->name);
 
-       if (new->path && !opts->force_detach && !opts->new_branch) {
+       if (new->path && !opts->force_detach && !opts->new_branch &&
+           !opts->ignore_other_worktrees) {
                unsigned char sha1[20];
                int flag;
                char *head_ref = resolve_refdup("HEAD", 0, sha1, &flag);
                if (head_ref &&
-                   (!(flag & REF_ISSYMREF) || strcmp(head_ref, new->path)) &&
-                   !opts->ignore_other_worktrees)
-                       check_linked_checkouts(new);
+                   (!(flag & REF_ISSYMREF) || strcmp(head_ref, new->path)))
+                       die_if_checked_out(new->path);
                free(head_ref);
        }
 
@@ -1225,6 +1158,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                                N_("second guess 'git checkout <no-such-branch>'")),
                OPT_BOOL(0, "ignore-other-worktrees", &opts.ignore_other_worktrees,
                         N_("do not check if another worktree is holding the given ref")),
+               OPT_BOOL(0, "progress", &opts.show_progress, N_("force progress reporting")),
                OPT_END(),
        };
 
@@ -1232,6 +1166,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        memset(&new, 0, sizeof(new));
        opts.overwrite_ignore = 1;
        opts.prefix = prefix;
+       opts.show_progress = -1;
 
        gitmodules_config();
        git_config(git_checkout_config, &opts);
@@ -1241,7 +1176,12 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        argc = parse_options(argc, argv, prefix, options, checkout_usage,
                             PARSE_OPT_KEEP_DASHDASH);
 
-       opts.new_worktree_mode = getenv("GIT_CHECKOUT_NEW_WORKTREE") != NULL;
+       if (opts.show_progress < 0) {
+               if (opts.quiet)
+                       opts.show_progress = 0;
+               else
+                       opts.show_progress = isatty(2);
+       }
 
        if (conflict_style) {
                opts.merge = 1; /* implied */