diff options
| -rw-r--r-- | builtin/receive-pack.c | 21 | ||||
| -rwxr-xr-x | t/t5516-fetch-push.sh | 55 |
2 files changed, 74 insertions, 2 deletions
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c index 70e9ce5f96..5292bb5a50 100644 --- a/builtin/receive-pack.c +++ b/builtin/receive-pack.c @@ -743,6 +743,22 @@ static int update_shallow_ref(struct command *cmd, struct shallow_info *si) return 0; } +/* + * NEEDSWORK: we should consolidate various implementions of "are we + * on an unborn branch?" test into one, and make the unified one more + * robust. !get_sha1() based check used here and elsewhere would not + * allow us to tell an unborn branch from corrupt ref, for example. + * For the purpose of fixing "deploy-to-update does not work when + * pushing into an empty repository" issue, this should suffice for + * now. + */ +static int head_has_history(void) +{ + unsigned char sha1[20]; + + return !get_sha1("HEAD", sha1); +} + static const char *push_to_deploy(unsigned char *sha1, struct argv_array *env, const char *work_tree) @@ -755,7 +771,7 @@ static const char *push_to_deploy(unsigned char *sha1, }; const char *diff_index[] = { "diff-index", "--quiet", "--cached", "--ignore-submodules", - "HEAD", "--", NULL + NULL, "--", NULL }; const char *read_tree[] = { "read-tree", "-u", "-m", NULL, NULL @@ -782,6 +798,9 @@ static const char *push_to_deploy(unsigned char *sha1, if (run_command(&child)) return "Working directory has unstaged changes"; + /* diff-index with either HEAD or an empty tree */ + diff_index[4] = head_has_history() ? "HEAD" : EMPTY_TREE_SHA1_HEX; + child_process_init(&child); child.argv = diff_index; child.env = env->argv; diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh index 5e04d64109..8a5f2363a9 100755 --- a/t/t5516-fetch-push.sh +++ b/t/t5516-fetch-push.sh @@ -1437,8 +1437,22 @@ test_expect_success 'receive.denyCurrentBranch = updateInstead' ' test $(git -C .. rev-parse HEAD^^) = $(git rev-parse HEAD) && git diff --quiet && test fifth = "$(cat path3)" - ) + ) && + # (5) push into void + rm -fr void && + git init void && + ( + cd void && + git config receive.denyCurrentBranch updateInstead + ) && + git push void master && + ( + cd void && + test $(git -C .. rev-parse master) = $(git rev-parse HEAD) && + git diff --quiet && + git diff --cached --quiet + ) ' test_expect_success 'updateInstead with push-to-checkout hook' ' @@ -1501,6 +1515,45 @@ test_expect_success 'updateInstead with push-to-checkout hook' ' test "$(cat path5)" = irrelevant && test "$(git diff --name-only --cached HEAD)" = path5 && test $(git -C .. rev-parse HEAD) = $(git rev-parse HEAD) + ) && + + # push into void + rm -fr void && + git init void && + ( + cd void && + git config receive.denyCurrentBranch updateInstead && + write_script .git/hooks/push-to-checkout <<-\EOF + if git rev-parse --quiet --verify HEAD + then + has_head=yes + echo >&2 updating from $(git rev-parse HEAD) + else + has_head=no + echo >&2 pushing into void + fi + echo >&2 updating to "$1" + + git update-index -q --refresh && + case "$has_head" in + yes) + git read-tree -u -m HEAD "$1" ;; + no) + git read-tree -u -m "$1" ;; + esac || { + status=$? + echo >&2 read-tree failed + exit $status + } + EOF + ) && + + git push void master && + ( + cd void && + git diff --quiet && + git diff --cached --quiet && + test $(git -C .. rev-parse HEAD) = $(git rev-parse HEAD) ) ' |