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Merge branch 'jk/cherry-pick-root-with-resolve' into maint

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* jk/cherry-pick-root-with-resolve:
  t3503: test cherry picking and reverting root commits
  revert: allow reverting a root commit
  cherry-pick: handle root commits with external strategies
This commit is contained in:
Junio C Hamano 2011-05-26 09:37:41 -07:00
commit 0e66f8722c
3 changed files with 36 additions and 7 deletions
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12
builtin/merge.c
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@ -599,6 +599,14 @@ static void write_tree_trivial(unsigned char *sha1)
die(_("git write-tree failed to write a tree"));
}
static const char *merge_argument(struct commit *commit)
{
if (commit)
return sha1_to_hex(commit->object.sha1);
else
return EMPTY_TREE_SHA1_HEX;
}
int try_merge_command(const char *strategy, size_t xopts_nr,
const char **xopts, struct commit_list *common,
const char *head_arg, struct commit_list *remotes)
@ -619,11 +627,11 @@ int try_merge_command(const char *strategy, size_t xopts_nr,
args[i++] = s;
}
for (j = common; j; j = j->next)
args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1));
args[i++] = xstrdup(merge_argument(j->item));
args[i++] = "--";
args[i++] = head_arg;
for (j = remotes; j; j = j->next)
args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1));
args[i++] = xstrdup(merge_argument(j->item));
args[i] = NULL;
ret = run_command_v_opt(args, RUN_GIT_CMD);
strbuf_release(&buf);

4
builtin/revert.c
View File

@ -408,8 +408,6 @@ static int do_pick_commit(void)
discard_cache();
if (!commit->parents) {
if (action == REVERT)
die (_("Cannot revert a root commit"));
parent = NULL;
}
else if (commit->parents->next) {
@ -467,7 +465,7 @@ static int do_pick_commit(void)
strbuf_addstr(&msgbuf, "\"\n\nThis reverts commit ");
strbuf_addstr(&msgbuf, sha1_to_hex(commit->object.sha1));
if (commit->parents->next) {
if (commit->parents && commit->parents->next) {
strbuf_addstr(&msgbuf, ", reversing\nchanges made to ");
strbuf_addstr(&msgbuf, sha1_to_hex(parent->object.sha1));
}

27
t/t3503-cherry-pick-root.sh
View File

@ -1,6 +1,6 @@
#!/bin/sh
test_description='test cherry-picking a root commit'
test_description='test cherry-picking (and reverting) a root commit'
. ./test-lib.sh
@ -23,7 +23,30 @@ test_expect_success setup '
test_expect_success 'cherry-pick a root commit' '
git cherry-pick master &&
test first = $(cat file1)
echo first >expect &&
test_cmp expect file1
'
test_expect_success 'revert a root commit' '
git revert master &&
test_path_is_missing file1
'
test_expect_success 'cherry-pick a root commit with an external strategy' '
git cherry-pick --strategy=resolve master &&
echo first >expect &&
test_cmp expect file1
'
test_expect_success 'revert a root commit with an external strategy' '
git revert --strategy=resolve master &&
test_path_is_missing file1
'