make that update-git-repo.sh

update-blog-mail.sh

@@ -1,8 +0,0 @@
-#!/bin/bash
-
-if [[ -d /home/sjs/blog-mail ]]; then
-    cd /home/sjs/blog-mail
-    git clean -fq
-    git pull
-fi
-

update-git-repo.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+dir="$1"
+if [[ -d "$1/.git" ]]; then
+    cd "$1"
+    git clean -fq
+    git pull
+else
+    echo "error: $1 is not a git repo"
+    exit 1
+fi
+