merge: notice local merging of tags and keep it unwrapped

diff --git a/builtin/checkout.c b/builtin/checkout.c
index 4eaedff0c47cbc8ab38e4c1ec813b1f7a248cdff..2a8077242500d54ac50d5829a86b14803fc69126 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -19,6 +19,7 @@
 #include "ll-merge.h"
 #include "resolve-undo.h"
 #include "submodule.h"
+#include "argv-array.h"
 
 static const char * const checkout_usage[] = {
        "git checkout [options] <branch>",
@@ -71,7 +72,7 @@ static int update_some(const unsigned char *sha1, const char *base, int baselen,
        hashcpy(ce->sha1, sha1);
        memcpy(ce->name, base, baselen);
        memcpy(ce->name + baselen, pathname, len - baselen);
-       ce->ce_flags = create_ce_flags(len, 0);
+       ce->ce_flags = create_ce_flags(len, 0) | CE_UPDATE;
        ce->ce_mode = create_ce_mode(mode);
        add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE);
        return 0;
@@ -228,6 +229,8 @@ static int checkout_paths(struct tree *source_tree, const char **pathspec,
 
        for (pos = 0; pos < active_nr; pos++) {
                struct cache_entry *ce = active_cache[pos];
+               if (source_tree && !(ce->ce_flags & CE_UPDATE))
+                       continue;
                match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, ps_matched);
        }
 
@@ -266,6 +269,8 @@ static int checkout_paths(struct tree *source_tree, const char **pathspec,
        state.refresh_cache = 1;
        for (pos = 0; pos < active_nr; pos++) {
                struct cache_entry *ce = active_cache[pos];
+               if (source_tree && !(ce->ce_flags & CE_UPDATE))
+                       continue;
                if (match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, NULL)) {
                        if (!ce_stage(ce)) {
                                errs |= checkout_entry(ce, &state, NULL);
@@ -588,35 +593,11 @@ static void update_refs_for_switch(struct checkout_opts *opts,
                report_tracking(new);
 }
 
-struct rev_list_args {
-       int argc;
-       int alloc;
-       const char **argv;
-};
-
-static void add_one_rev_list_arg(struct rev_list_args *args, const char *s)
-{
-       ALLOC_GROW(args->argv, args->argc + 1, args->alloc);
-       args->argv[args->argc++] = s;
-}
-
-static int add_one_ref_to_rev_list_arg(const char *refname,
-                                      const unsigned char *sha1,
-                                      int flags,
-                                      void *cb_data)
-{
-       add_one_rev_list_arg(cb_data, refname);
-       return 0;
-}
-
-static int clear_commit_marks_from_one_ref(const char *refname,
-                                     const unsigned char *sha1,
-                                     int flags,
-                                     void *cb_data)
+static int add_pending_uninteresting_ref(const char *refname,
+                                        const unsigned char *sha1,
+                                        int flags, void *cb_data)
 {
-       struct commit *commit = lookup_commit_reference_gently(sha1, 1);
-       if (commit)
-               clear_commit_marks(commit, -1);
+       add_pending_sha1(cb_data, refname, sha1, flags | UNINTERESTING);
        return 0;
 }
 
@@ -685,19 +666,21 @@ static void suggest_reattach(struct commit *commit, struct rev_info *revs)
  */
 static void orphaned_commit_warning(struct commit *commit)
 {
-       struct rev_list_args args = { 0, 0, NULL };
        struct rev_info revs;
-
-       add_one_rev_list_arg(&args, "(internal)");
-       add_one_rev_list_arg(&args, sha1_to_hex(commit->object.sha1));
-       add_one_rev_list_arg(&args, "--not");
-       for_each_ref(add_one_ref_to_rev_list_arg, &args);
-       add_one_rev_list_arg(&args, "--");
-       add_one_rev_list_arg(&args, NULL);
+       struct object *object = &commit->object;
+       struct object_array refs;
 
        init_revisions(&revs, NULL);
-       if (setup_revisions(args.argc - 1, args.argv, &revs, NULL) != 1)
-               die(_("internal error: only -- alone should have been left"));
+       setup_revisions(0, NULL, &revs, NULL);
+
+       object->flags &= ~UNINTERESTING;
+       add_pending_object(&revs, object, sha1_to_hex(object->sha1));
+
+       for_each_ref(add_pending_uninteresting_ref, &revs);
+
+       refs = revs.pending;
+       revs.leak_pending = 1;
+
        if (prepare_revision_walk(&revs))
                die(_("internal error in revision walk"));
        if (!(commit->object.flags & UNINTERESTING))
@@ -705,8 +688,8 @@ static void orphaned_commit_warning(struct commit *commit)
        else
                describe_detached_head(_("Previous HEAD position was"), commit);
 
-       clear_commit_marks(commit, -1);
-       for_each_ref(clear_commit_marks_from_one_ref, NULL);
+       clear_commit_marks_for_object_array(&refs, ALL_REV_FLAGS);
+       free(refs.objects);
 }
 
 static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
@@ -882,7 +865,7 @@ static int parse_branchname_arg(int argc, const char **argv,
        new->name = arg;
        setup_branch_path(new);
 
-       if (check_ref_format(new->path) == CHECK_REF_FORMAT_OK &&
+       if (!check_refname_format(new->path, 0) &&
            resolve_ref(new->path, branch_rev, 1, NULL))
                hashcpy(rev, branch_rev);
        else
@@ -1072,15 +1055,10 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 
        if (opts.new_branch) {
                struct strbuf buf = STRBUF_INIT;
-               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 (ref_exists(buf.buf)) {
-                       opts.branch_exists = 1;
-                       if (!opts.new_branch_force)
-                               die(_("git checkout: branch %s already exists"),
-                                   opts.new_branch);
-               }
+
+               opts.branch_exists = validate_new_branchname(opts.new_branch, &buf,
+                                                            !!opts.new_branch_force, 0);
+
                strbuf_release(&buf);
        }