git-crypt: add simple script to unlock repo

crypt.sh

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+cd $SCRIPT_DIR
+
+if [ $# = 0 ] || ( [ $# = 1 ] && [ $1 = "help" ] ); then
+echo "Use \"unlock\" to unlock with pgp"
+echo "Use \"unlock\" /path/to/key to unlock with symmetric key"
+echo "Use \"lock\": to lock repository"
+exit
+fi
+
+if [ "$(git status --porcelain)" ]; then
+echo "Working directory not clean."
+echo "Please commit your changes or 'git stash' them before running this script"
+exit 1
+fi
+
+create_decrypt () {
+    touch decrypted
+    git add --intent-to-add decrypted
+    git update-index --assume-unchanged decrypted
+}
+
+
+if [ $# = 1 ]; then
+
+    if [ $1 = "unlock" ]; then
+        git-crypt unlock
+        create_decrypt
+        exit
+    fi
+
+    if [ $1 = "lock" ]; then
+        rm decrypted
+        git-crypt lock
+        exit
+    fi
+
+fi
+
+if [ $# = 2 ] && [ $1 = "unlock" ]; then
+    git-crypt unlock $2
+    create_decrypt
+    exit
+fi