man cg-object-id (Commandes) - get sha1 id of commit or tree associated with given id or head

NAME

cg-object-id - get sha1 id of commit or tree associated with given id or head

cg-object-id [-c | -n | -p | -t] [OBJECT_ID]

If the ID is not provided, HEAD is used. The default behavior is to show the commit ID.

-c: Get ID of commit matching the object ID (error out if it is not a commit). This is the default if you do not pass any parameter as well, but that is only for the human usage. For clarity, all scripted usage of cg-object-id should use -c explicitly if it wants a commit.
-n: Normalize only - don't check the object type.
-p: Get ID of the first parent commit of a given revision or HEAD. NOTE: Multiple SHA1s separated by newlines will be returned for commits with multiple parents.
-t: Get ID of tree associated with given commit or HEAD.
OBJECT_ID: An ID resolving to a commit.
-h, --help: Print usage help.