Merge branch 'jk/initialization-fix-to-add-submodule-odb' into maint
[gitweb.git] / builtin / checkout.c
index f71844a23a9d4bda0664bec709648911bc0f2609..bc703c0f5ed9644b2380ed1f2e20b47238c80e5a 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[] = {
@@ -48,8 +49,6 @@ 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,
@@ -282,7 +281,7 @@ static int checkout_paths(const struct checkout_opts *opts,
        if (opts->source_tree)
                read_tree_some(opts->source_tree, &opts->pathspec);
 
-       ps_matched = xcalloc(1, opts->pathspec.nr);
+       ps_matched = xcalloc(opts->pathspec.nr, 1);
 
        /*
         * Make sure all pathspecs participated in locating the paths
@@ -509,7 +508,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
                        topts.dir->flags |= DIR_SHOW_IGNORED;
                        setup_standard_excludes(topts.dir);
                }
-               tree = parse_tree_indirect(old->commit && !opts->new_worktree_mode ?
+               tree = parse_tree_indirect(old->commit ?
                                           old->commit->object.sha1 :
                                           EMPTY_TREE_SHA1_BIN);
                init_tree_desc(&trees[0], tree->buffer, tree->size);
@@ -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
@@ -832,8 +829,7 @@ 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 +894,6 @@ 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,
@@ -1170,14 +1101,14 @@ 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);
        }
 
@@ -1241,8 +1172,6 @@ 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 (conflict_style) {
                opts.merge = 1; /* implied */
                git_xmerge_config("merge.conflictstyle", conflict_style, NULL);