pre-receive

#!/bin/sh 
# protect branch from pushes by non-authorized users
# Volker Kuhlmann (2017)
 
# protected branch name 
protected_branch="refs/heads/master" 
# list of authorized users
authorized_users="Michael|John"

# return value : 0 is OK 
return_value=0 

# test the query branch against the protected branch
while read oldrev newrev refname ; do 
  if test "$refname" = "$protected_branch" 
  then 
    echo "CHECKS authorization for protected branch" $protected_branch
	# test the current user against list of authorized users
	if [[ "$GOGS_AUTH_USER_NAME" != +($authorized_users) ]]; 
	then
       # return value : 1 is NOT OK 
       return_value=1 
	   echo "DENIES push to protected branch by" $GOGS_AUTH_USER_NAME
    fi
  fi 
done 

exit $return_value