add --superproject-rev for repo status

If the option is given, repo status prints the superproject revision

Change-Id: I5d1c709518d76d777a7f07c4c774569773c5a265
Bug: 416589884

git_superproject.py

@@ -129,6 +129,30 @@ class Superproject:
         """Set the _print_messages attribute."""
         self._print_messages = value
 
+    @property
+    def commit_id(self):
+        """Returns the commit ID of the superproject checkout."""
+        cmd = ["rev-parse", self.revision]
+        p = GitCommand(
+            None,  # project
+            cmd,
+            gitdir=self._work_git,
+            bare=True,
+            capture_stdout=True,
+            capture_stderr=True,
+        )
+        retval = p.Wait()
+        if retval == 0:
+            data = p.stdout
+        else:
+            self._LogWarning(
+                "git rev-parse call failed, command: git {}, "
+                "return code: {}, stderr: {}",
+                cmd,
+                p.stdwerr,
+            )
+        return data
+
     @property
     def project_commit_ids(self):
         """Returns a dictionary of projects and their commit ids."""

man/repo-status.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2022" "repo status" "Repo Manual"
+.TH REPO "1" "May 2025" "repo status" "Repo Manual"
 .SH NAME
 repo \- repo status - manual page for repo status
 .SH SYNOPSIS
@@ -21,6 +21,9 @@ number of CPU cores)
 \fB\-o\fR, \fB\-\-orphans\fR
 include objects in working directory outside of repo
 projects
+.TP
+\fB\-\-superproject\-rev\fR
+print the superproject reivsion
 .SS Logging options:
 .TP
 \fB\-v\fR, \fB\-\-verbose\fR

subcmds/status.py

@@ -87,6 +87,11 @@ the following meanings:
             help="include objects in working directory outside of repo "
             "projects",
         )
+        p.add_option(
+            "--superproject-rev",
+            action="store_true",
+            help="print the superproject reivsion",
+        )
 
     @classmethod
     def _StatusHelper(cls, quiet, local, project_idx):
@@ -132,6 +137,12 @@ the following meanings:
             outstring.append("".join([status_header, item, "/"]))
 
     def Execute(self, opt, args):
+        if opt.superproject_rev:
+            sp = self.manifest.superproject
+            srev = sp.commit_id if sp else "None"
+            print("Superproject Revision:", srev)
+            return
+
         all_projects = self.GetProjects(
             args, all_manifests=not opt.this_manifest_only
         )