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#!/bin/sh
#
# A hook to disallow php syntax errors to be committed
# by running php -l (lint) on them. It requires php-cli
# to be installed.
#
# This is a pre-commit hook.
#
# To install this you can either copy or symlink it to
# $GIT_DIR/hooks, example:
#
# ln -s ../../git-tools/hooks/pre-commit \\
# .git/hooks/pre-commit
# NOTE: this is run through /usr/bin/env
PHP_BIN=php
# necessary check for initial commit
if git rev-parse --verify HEAD >/dev/null 2>&1
then
against=HEAD
else
# Initial commit: diff against an empty tree object
against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi
error=0
errors=""
if ! which $PHP_BIN >/dev/null 2>&1
then
echo "PHP Syntax check failed:"
echo "PHP binary does not exist or is not in path: $PHP_BIN"
exit 1
fi
# dash does not support $'\n':
# http://forum.soft32.com/linux2/Bug-409179-DASH-Settings-IFS-work-properly-ftopict70039.html
IFS='
'
# get a list of staged files
for line in $(git diff-index --cached --full-index $against)
do
# split needed values
sha=$(echo $line | cut -d' ' -f4)
temp=$(echo $line | cut -d' ' -f5)
status=$(echo $temp | cut -d' ' -f1)
filename=$(echo $temp | cut -d' ' -f2)
# file extension
ext=$(echo $filename | sed 's/^.*\.//')
# only check files with php extension
if [ $ext != "php" ]
then
continue
fi
# do not check deleted files
if [ $status = "D" ]
then
continue
fi
# check the staged file content for syntax errors
# using php -l (lint)
result=$(git cat-file -p $sha | /usr/bin/env $PHP_BIN -l 2>/dev/null)
if [ $? -ne 0 ]
then
error=1
# Swap back in correct filenames
errors=$(echo "$errors"; echo "$result" |sed -e "s@in - on@in $filename on@g")
fi
done
unset IFS
if [ $error -eq 1 ]
then
echo -e "PHP Syntax check failed:";
echo -e "$errors" | grep "^Parse error:"
exit 1
fi
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