code: func postCommitCommand(cmd *cobra.Command, args []string) {
  
  	// Skip entire hook if lockable read only feature is disabled
  	if !cfg.SetLockableFilesReadOnly() {
  		os.Exit(0)
  	}
  
  	requireGitVersion()
  
  	lockClient := newLockClient()
  
  	// Skip this hook if no lockable patterns have been configured
  	if len(lockClient.GetLockablePatterns()) == 0 {
  		os.Exit(0)
  	}
  
  	tracerx.Printf("post-commit: checking file write flags at HEAD")
  	// We can speed things up by looking at what changed in
  	// HEAD, and only checking those lockable files
  	files, err := git.GetFilesChanged("HEAD", "")
  
  	if err != nil {
  		LoggedError(err, "Warning: post-commit failed: %v", err)
  		os.Exit(1)
  	}
  	tracerx.Printf("post-commit: checking write flags on %v", files)
  	err = lockClient.FixLockableFileWriteFlags(files)
  	if err != nil {
  		LoggedError(err, "Warning: post-commit locked file check failed: %v", err)
  	}
  
  }
docs: // postCommitCommand is run through Git's post-commit hook. The hook passes
  // no arguments.
  // This hook checks that files which are lockable and not locked are made read-only,
  // optimising that based on what was added / modified in the commit.
  // This is mainly to catch added files, since modified files should already be
  // locked. If we didn't do this, any added files would remain read/write on disk
  // even without a lock unless something else checked.