If an updatable ref is checked out in any worktree, emulate merge
--ff-only to also update the local work tree (including executing the
post-merge hook).
If an updatable ref is not checked out in any worktree, the ref is
simply updated.
If a ref update is successful, that ref is reported as 'UPDATED'. If
it is not successful, the ref is reported as 'UNABLE-TO-UPDATE'.
Signed-off-by: Michael Rappazzo <rappa...@gmail.com>
---
builtin/ff-refs.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/builtin/ff-refs.c b/builtin/ff-refs.c
index 94a4649..f14afc5 100644
--- a/builtin/ff-refs.c
+++ b/builtin/ff-refs.c
@@ -59,6 +59,43 @@ static const char *result_type_str(enum ff_result_type
result_type)
}
/**
+ * Do the ref update.
+ * - If the ref is checked out in any worktree, emulate merge --ff-only to
+ * also update the local work tree (including executing the post-merge
hook).
+ *
+ * - If the ref is not checked out in any worktree, update it
+ *
+ * - If any of the ref updates fails, the result_type is set to
UNABLE-TO-UPDATE
+ */
+static void do_ref_update(struct ff_ref_data *data, struct ff_ref_details
*details)
+{
+ const char *refname = details->branch->refname;
+
+ if (details->wt) {
+ struct strbuf path = STRBUF_INIT;
+
+ strbuf_getcwd(&path);
+ chdir(details->wt->path);
+ set_git_dir(details->wt->git_dir);
+ read_index(&the_index);
+
+ if (checkout_fast_forward(details->branch_commit->object.sha1,
+ details->upstream_commit->object.sha1, 1))
+ details->result_type = NON_FAST_FORWARD;
+ else if (update_ref("ff-refs", refname,
details->upstream_commit->object.sha1,
+ details->branch_commit->object.sha1, 0,
UPDATE_REFS_QUIET_ON_ERR)) {
+ details->result_type = UNABLE_TO_UPDATE;
+ run_hook_le(NULL, "post-merge", "0", NULL);
+ }
+ discard_index(&the_index);
+ chdir(path.buf);
+ strbuf_release(&path);
+ } else if (update_ref("ff-refs", refname,
details->upstream_commit->object.sha1,
+ details->branch_commit->object.sha1, 0,
UPDATE_REFS_QUIET_ON_ERR))
+ details->result_type = UNABLE_TO_UPDATE;
+}
+
+/**
* return the worktree with the given refname checked out, or NULL if that
* ref is not checked out in any branch.
*
@@ -98,6 +135,9 @@ static void process_refs(struct ff_ref_data *data)
printf(" %s -> %s%*.*s",
details->branch->name, details->shortened_upstream,
padLen, padLen, padding);
+ if (details->result_type == UPDATABLE)
+ do_ref_update(data, details);
+
printf("[%s]\n", result_type_str(details->result_type));
}
}
--
2.6.2
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
