summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--Documentation/config.txt7
-rw-r--r--builtin/receive-pack.c93
-rwxr-xr-xt/t5516-fetch-push.sh104
3 files changed, 202 insertions, 2 deletions
diff --git a/Documentation/config.txt b/Documentation/config.txt
index b563ea8..ac781a4 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -2144,6 +2144,13 @@ receive.denyCurrentBranch::
print a warning of such a push to stderr, but allow the push to
proceed. If set to false or "ignore", allow such pushes with no
message. Defaults to "refuse".
++
+Another option is "updateInstead" which will update the working
+directory (must be clean) if pushing into the current branch. This option is
+intended for synchronizing working directories when one side is not easily
+accessible via interactive ssh (e.g. a live web site, hence the requirement
+that the working directory be clean). This mode also comes in handy when
+developing inside a VM to test and fix code on different Operating Systems.
receive.denyNonFastForwards::
If set to true, git-receive-pack will deny a ref update which is
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 1eefadd..8266c1f 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -26,7 +26,8 @@ enum deny_action {
DENY_UNCONFIGURED,
DENY_IGNORE,
DENY_WARN,
- DENY_REFUSE
+ DENY_REFUSE,
+ DENY_UPDATE_INSTEAD
};
static int deny_deletes;
@@ -76,6 +77,8 @@ static enum deny_action parse_deny_action(const char *var, const char *value)
return DENY_WARN;
if (!strcasecmp(value, "refuse"))
return DENY_REFUSE;
+ if (!strcasecmp(value, "updateinstead"))
+ return DENY_UPDATE_INSTEAD;
}
if (git_config_bool(var, value))
return DENY_REFUSE;
@@ -730,11 +733,89 @@ static int update_shallow_ref(struct command *cmd, struct shallow_info *si)
return 0;
}
+static const char *update_worktree(unsigned char *sha1)
+{
+ const char *update_refresh[] = {
+ "update-index", "-q", "--ignore-submodules", "--refresh", NULL
+ };
+ const char *diff_files[] = {
+ "diff-files", "--quiet", "--ignore-submodules", "--", NULL
+ };
+ const char *diff_index[] = {
+ "diff-index", "--quiet", "--cached", "--ignore-submodules",
+ "HEAD", "--", NULL
+ };
+ const char *read_tree[] = {
+ "read-tree", "-u", "-m", NULL, NULL
+ };
+ const char *work_tree = git_work_tree_cfg ? git_work_tree_cfg : "..";
+ struct argv_array env = ARGV_ARRAY_INIT;
+ struct child_process child = CHILD_PROCESS_INIT;
+
+ if (is_bare_repository())
+ return "denyCurrentBranch = updateInstead needs a worktree";
+
+ argv_array_pushf(&env, "GIT_DIR=%s", absolute_path(get_git_dir()));
+
+ child.argv = update_refresh;
+ child.env = env.argv;
+ child.dir = work_tree;
+ child.no_stdin = 1;
+ child.stdout_to_stderr = 1;
+ child.git_cmd = 1;
+ if (run_command(&child)) {
+ argv_array_clear(&env);
+ return "Up-to-date check failed";
+ }
+
+ /* run_command() does not clean up completely; reinitialize */
+ child_process_init(&child);
+ child.argv = diff_files;
+ child.env = env.argv;
+ child.dir = work_tree;
+ child.no_stdin = 1;
+ child.stdout_to_stderr = 1;
+ child.git_cmd = 1;
+ if (run_command(&child)) {
+ argv_array_clear(&env);
+ return "Working directory has unstaged changes";
+ }
+
+ child_process_init(&child);
+ child.argv = diff_index;
+ child.env = env.argv;
+ child.no_stdin = 1;
+ child.no_stdout = 1;
+ child.stdout_to_stderr = 0;
+ child.git_cmd = 1;
+ if (run_command(&child)) {
+ argv_array_clear(&env);
+ return "Working directory has staged changes";
+ }
+
+ read_tree[3] = sha1_to_hex(sha1);
+ child_process_init(&child);
+ child.argv = read_tree;
+ child.env = env.argv;
+ child.dir = work_tree;
+ child.no_stdin = 1;
+ child.no_stdout = 1;
+ child.stdout_to_stderr = 0;
+ child.git_cmd = 1;
+ if (run_command(&child)) {
+ argv_array_clear(&env);
+ return "Could not update working tree to new HEAD";
+ }
+
+ argv_array_clear(&env);
+ return NULL;
+}
+
static const char *update(struct command *cmd, struct shallow_info *si)
{
const char *name = cmd->ref_name;
struct strbuf namespaced_name_buf = STRBUF_INIT;
- const char *namespaced_name;
+ const char *namespaced_name, *ret;
unsigned char *old_sha1 = cmd->old_sha1;
unsigned char *new_sha1 = cmd->new_sha1;
@@ -760,6 +841,11 @@ static const char *update(struct command *cmd, struct shallow_info *si)
if (deny_current_branch == DENY_UNCONFIGURED)
refuse_unconfigured_deny();
return "branch is currently checked out";
+ case DENY_UPDATE_INSTEAD:
+ ret = update_worktree(new_sha1);
+ if (ret)
+ return ret;
+ break;
}
}
@@ -784,10 +870,13 @@ static const char *update(struct command *cmd, struct shallow_info *si)
break;
case DENY_REFUSE:
case DENY_UNCONFIGURED:
+ case DENY_UPDATE_INSTEAD:
if (deny_delete_current == DENY_UNCONFIGURED)
refuse_unconfigured_deny_delete_current();
rp_error("refusing to delete the current branch: %s", name);
return "deletion of the current branch prohibited";
+ default:
+ return "Invalid denyDeleteCurrent setting";
}
}
}
diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh
index f4da20a..85c7fec 100755
--- a/t/t5516-fetch-push.sh
+++ b/t/t5516-fetch-push.sh
@@ -1330,4 +1330,108 @@ test_expect_success 'fetch into bare respects core.logallrefupdates' '
)
'
+test_expect_success 'receive.denyCurrentBranch = updateInstead' '
+ git push testrepo master &&
+ (
+ cd testrepo &&
+ git reset --hard &&
+ git config receive.denyCurrentBranch updateInstead
+ ) &&
+ test_commit third path2 &&
+
+ # Try pushing into a repository with pristine working tree
+ git push testrepo master &&
+ (
+ cd testrepo &&
+ git update-index -q --refresh &&
+ git diff-files --quiet -- &&
+ git diff-index --quiet --cached HEAD -- &&
+ test third = "$(cat path2)" &&
+ test $(git -C .. rev-parse HEAD) = $(git rev-parse HEAD)
+ ) &&
+
+ # Try pushing into a repository with working tree needing a refresh
+ (
+ cd testrepo &&
+ git reset --hard HEAD^ &&
+ test $(git -C .. rev-parse HEAD^) = $(git rev-parse HEAD) &&
+ test-chmtime +100 path1
+ ) &&
+ git push testrepo master &&
+ (
+ cd testrepo &&
+ git update-index -q --refresh &&
+ git diff-files --quiet -- &&
+ git diff-index --quiet --cached HEAD -- &&
+ test_cmp ../path1 path1 &&
+ test third = "$(cat path2)" &&
+ test $(git -C .. rev-parse HEAD) = $(git rev-parse HEAD)
+ ) &&
+
+ # Update what is to be pushed
+ test_commit fourth path2 &&
+
+ # Try pushing into a repository with a dirty working tree
+ # (1) the working tree updated
+ (
+ cd testrepo &&
+ echo changed >path1
+ ) &&
+ test_must_fail git push testrepo master &&
+ (
+ cd testrepo &&
+ test $(git -C .. rev-parse HEAD^) = $(git rev-parse HEAD) &&
+ git diff --quiet --cached &&
+ test changed = "$(cat path1)"
+ ) &&
+
+ # (2) the index updated
+ (
+ cd testrepo &&
+ echo changed >path1 &&
+ git add path1
+ ) &&
+ test_must_fail git push testrepo master &&
+ (
+ cd testrepo &&
+ test $(git -C .. rev-parse HEAD^) = $(git rev-parse HEAD) &&
+ git diff --quiet &&
+ test changed = "$(cat path1)"
+ ) &&
+
+ # Introduce a new file in the update
+ test_commit fifth path3 &&
+
+ # (3) the working tree has an untracked file that would interfere
+ (
+ cd testrepo &&
+ git reset --hard &&
+ echo changed >path3
+ ) &&
+ test_must_fail git push testrepo master &&
+ (
+ cd testrepo &&
+ test $(git -C .. rev-parse HEAD^^) = $(git rev-parse HEAD) &&
+ git diff --quiet &&
+ git diff --quiet --cached &&
+ test changed = "$(cat path3)"
+ ) &&
+
+ # (4) the target changes to what gets pushed but it still is a change
+ (
+ cd testrepo &&
+ git reset --hard &&
+ echo fifth >path3 &&
+ git add path3
+ ) &&
+ test_must_fail git push testrepo master &&
+ (
+ cd testrepo &&
+ test $(git -C .. rev-parse HEAD^^) = $(git rev-parse HEAD) &&
+ git diff --quiet &&
+ test fifth = "$(cat path3)"
+ )
+
+'
+
test_done