grep: fix word-regexp at the beginning of lines

diff --git a/builtin-checkout.c b/builtin-checkout.c
index efa1ebfe07f99e5092710fb951f9e23f16dd1b85..f2d7ef01b0bbe667ae8042f7a806a634fa0aa46b 100644 (file)
--- a/builtin-checkout.c
+++ b/builtin-checkout.c
@@ -179,7 +179,7 @@ static int checkout_merged(int pos, struct checkout *state)
        /*
         * NEEDSWORK:
         * There is absolutely no reason to write this as a blob object
-        * and create a phoney cache entry just to leak.  This hack is
+        * and create a phony cache entry just to leak.  This hack is
         * primarily to get to the write_entry() machinery that massages
         * the contents to work-tree format and writes out which only
         * allows it for a cache entry.  The code in write_entry() needs
@@ -293,6 +293,8 @@ static void show_local_changes(struct object *head)
        init_revisions(&rev, NULL);
        rev.abbrev = 0;
        rev.diffopt.output_format |= DIFF_FORMAT_NAME_STATUS;
+       if (diff_setup_done(&rev.diffopt) < 0)
+               die("diff_setup_done failed");
        add_pending_object(&rev, head, NULL);
        run_diff_index(&rev, 0);
 }
@@ -349,16 +351,11 @@ struct branch_info {
 static void setup_branch_path(struct branch_info *branch)
 {
        struct strbuf buf = STRBUF_INIT;
-       int ret;
 
-       if ((ret = interpret_nth_last_branch(branch->name, &buf))
-           && ret == strlen(branch->name)) {
+       strbuf_branchname(&buf, branch->name);
+       if (strcmp(buf.buf, branch->name))
                branch->name = xstrdup(buf.buf);
-               strbuf_splice(&buf, 0, 0, "refs/heads/", 11);
-       } else {
-               strbuf_addstr(&buf, "refs/heads/");
-               strbuf_addstr(&buf, branch->name);
-       }
+       strbuf_splice(&buf, 0, 0, "refs/heads/", 11);
        branch->path = strbuf_detach(&buf, NULL);
 }
 
@@ -368,17 +365,14 @@ static int merge_working_tree(struct checkout_opts *opts,
        int ret;
        struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
        int newfd = hold_locked_index(lock_file, 1);
-       int reprime_cache_tree = 0;
 
        if (read_cache() < 0)
                return error("corrupt index file");
 
-       cache_tree_free(&active_cache_tree);
        if (opts->force) {
                ret = reset_tree(new->commit->tree, opts, 1);
                if (ret)
                        return ret;
-               reprime_cache_tree = 1;
        } else {
                struct tree_desc trees[2];
                struct tree *tree;
@@ -406,7 +400,7 @@ static int merge_working_tree(struct checkout_opts *opts,
                topts.verbose_update = !opts->quiet;
                topts.fn = twoway_merge;
                topts.dir = xcalloc(1, sizeof(*topts.dir));
-               topts.dir->show_ignored = 1;
+               topts.dir->flags |= DIR_SHOW_IGNORED;
                topts.dir->exclude_per_dir = ".gitignore";
                tree = parse_tree_indirect(old->commit->object.sha1);
                init_tree_desc(&trees[0], tree->buffer, tree->size);
@@ -414,9 +408,7 @@ static int merge_working_tree(struct checkout_opts *opts,
                init_tree_desc(&trees[1], tree->buffer, tree->size);
 
                ret = unpack_trees(2, trees, &topts);
-               if (ret != -1) {
-                       reprime_cache_tree = 1;
-               } else {
+               if (ret == -1) {
                        /*
                         * Unpack couldn't do a trivial merge; either
                         * give up or do a real merge, depending on
@@ -460,8 +452,6 @@ static int merge_working_tree(struct checkout_opts *opts,
                }
        }
 
-       if (reprime_cache_tree)
-               prime_cache_tree(&active_cache_tree, new->commit->tree);
        if (write_cache(newfd, active_cache, active_nr) ||
            commit_locked_index(lock_file))
                die("unable to write new index file");
@@ -551,18 +541,10 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
                parse_commit(new->commit);
        }
 
-       /*
-        * If we were on a detached HEAD, but we are now moving to
-        * a new commit, we want to mention the old commit once more
-        * to remind the user that it might be lost.
-        */
-       if (!opts->quiet && !old.path && old.commit && new->commit != old.commit)
-               describe_detached_head("Previous HEAD position was", old.commit);
-
        if (!old.commit && !opts->force) {
                if (!opts->quiet) {
-                       fprintf(stderr, "warning: You appear to be on a branch yet to be born.\n");
-                       fprintf(stderr, "warning: Forcing checkout of %s.\n", new->name);
+                       warning("You appear to be on a branch yet to be born.");
+                       warning("Forcing checkout of %s.", new->name);
                }
                opts->force = 1;
        }
@@ -571,6 +553,14 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
        if (ret)
                return ret;
 
+       /*
+        * If we were on a detached HEAD, but have now moved to
+        * a new commit, we want to mention the old commit once more
+        * to remind the user that it might be lost.
+        */
+       if (!opts->quiet && !old.path && old.commit && new->commit != old.commit)
+               describe_detached_head("Previous HEAD position was", old.commit);
+
        update_refs_for_switch(opts, &old, new);
 
        ret = post_checkout_hook(old.commit, new->commit, 1);
@@ -741,12 +731,11 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 
        if (opts.new_branch) {
                struct strbuf buf = STRBUF_INIT;
-               strbuf_addstr(&buf, "refs/heads/");
-               strbuf_addstr(&buf, opts.new_branch);
+               if (strbuf_check_branch_ref(&buf, opts.new_branch))
+                       die("git checkout: we do not like '%s' as a branch name.",
+                           opts.new_branch);
                if (!get_sha1(buf.buf, rev))
                        die("git checkout: branch %s already exists", opts.new_branch);
-               if (check_ref_format(buf.buf))
-                       die("git checkout: we do not like '%s' as a branch name.", opts.new_branch);
                strbuf_release(&buf);
        }