Fixups and test for pre-commit/pre-commit#277

pre_commit/commands/install_uninstall.py

@@ -21,10 +21,11 @@ PREVIOUS_IDENTIFYING_HASHES = (
     'd8ee923c46731b42cd95cc869add4062',
     '49fd668cb42069aa1b6048464be5d395',
     '79f09a650522a87b0da915d0d983b2de',
+    'e358c9dae00eac5d06b38dfdb1e33a8c',
 )
 
 
-IDENTIFYING_HASH = 'e358c9dae00eac5d06b38dfdb1e33a8c'
+IDENTIFYING_HASH = '138fd403232d2ddd5efb44317e38bf03'
 
 
 def is_our_pre_commit(filename):

pre_commit/resources/hook-tmpl

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 # This is a randomish md5 to identify this script
-# e358c9dae00eac5d06b38dfdb1e33a8c
+# 138fd403232d2ddd5efb44317e38bf03
 
 pushd `dirname $0` > /dev/null
 HERE=`pwd`

pre_commit/resources/pre-push-tmpl

@@ -11,7 +11,7 @@ do
     fi
 done
 
-if [ "args" != "" ]; then
+if [ "$args" != "" ]; then
     args="$args --hook-stage push"
 else
     # If args is empty, then an attempt to push on an empty