revision

The revision to fetch from the Git repository such as a branch, a tag, a commit SHA, or any Git ref. Cloud Build uses git fetch to fetch the revision from the Git repository; therefore make sure that the string you provide for revision is parsable by the command. For information on string values accepted by git fetch, see https://git-scm.com/docs/gitrevisions#_specifying_revisions. For information on git fetch, see https://git-scm.com/docs/git-fetch.