resolve-undo: teach "update-index --unresolve" to use resolve-undo info

diff --git a/builtin-checkout.c b/builtin-checkout.c
index da04eed39104446c7c82dd846f8ddfd785d761e2..bdef1aa38699e6c74ca30b313406ef093890e902 100644 (file)
--- a/builtin-checkout.c
+++ b/builtin-checkout.c
@@ -17,6 +17,7 @@
 #include "blob.h"
 #include "xdiff-interface.h"
 #include "ll-merge.h"
+#include "resolve-undo.h"
 
 static const char * const checkout_usage[] = {
        "git checkout [options] <branch>",
@@ -234,6 +235,10 @@ static int checkout_paths(struct tree *source_tree, const char **pathspec,
        if (report_path_error(ps_matched, pathspec, 0))
                return 1;
 
+       /* "checkout -m path" to recreate conflicted state */
+       if (opts->merge)
+               unmerge_cache(pathspec);
+
        /* Any unmerged paths? */
        for (pos = 0; pos < active_nr; pos++) {
                struct cache_entry *ce = active_cache[pos];
@@ -302,8 +307,9 @@ static void show_local_changes(struct object *head)
 static void describe_detached_head(char *msg, struct commit *commit)
 {
        struct strbuf sb = STRBUF_INIT;
+       struct pretty_print_context ctx = {0};
        parse_commit(commit);
-       pretty_print_commit(CMIT_FMT_ONELINE, commit, &sb, 0, NULL, NULL, 0, 0);
+       pretty_print_commit(CMIT_FMT_ONELINE, commit, &sb, &ctx);
        fprintf(stderr, "%s %s... %s\n", msg,
                find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV), sb.buf);
        strbuf_release(&sb);
@@ -369,6 +375,7 @@ static int merge_working_tree(struct checkout_opts *opts,
        if (read_cache_preload(NULL) < 0)
                return error("corrupt index file");
 
+       resolve_undo_clear();
        if (opts->force) {
                ret = reset_tree(new->commit->tree, opts, 1);
                if (ret)