self-updating post-receive. this is an awful idea

hooks/post-receive

@@ -3,25 +3,28 @@ set -e -u -o pipefail
 
 while read oldrev newrev ref
 do
-    if [[ $ref =~ .*/main$ ]];
-    then
-        echo "main ref received"
+  if [[ $ref =~ .*/main$ ]]; then
+    echo "main ref received"
 
 		echo "moving into temporary work tree"; {
-		    gitdir=$PWD
-				cd $(mktemp -d)
-		}
+      gitdir=$PWD
+      cd $(mktemp -d)
+    }
 
-		echo "checking out latest source"; {
-			git --work-tree=$PWD --git-dir=$gitdir checkout --force
-		}
+    echo "checking out latest source"; {
+      git --work-tree=$PWD --git-dir=$gitdir checkout --force
+    }
 
-		echo "generating static site"; {
-			podman-compose build
-		}
+    echo "generating static site"; {
+      podman-compose build
+    }
 
-		echo "restarting server"; {
-			podman-compose restart || podman compose up
-		}
-    fi
+    echo "restarting server"; {
+      podman-compose restart || podman compose up
+    }
+
+    echo "updating post-receive hook for future runs"; {
+      cp hooks/post-receive $0
+    }
+  fi
 done