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#!/bin/bash
# PHP CodeSniffer pre-commit hook for git
#
# @author Soenke Ruempler <soenke@ruempler.eu>
# @author Sebastian Kaspari <s.kaspari@googlemail.com>
#
# see the README
PHPCS_BIN=/usr/bin/phpcs
PHPCS_CODING_STANDARD=PEAR
PHPCS_IGNORE=
TMP_STAGING=".tmp_staging"
# parse config
CONFIG_FILE=$(dirname $0)/config
if [ -e $CONFIG_FILE ]; then
. $CONFIG_FILE
fi
# simple check if code sniffer is set up correctly
if [ ! -x $PHPCS_BIN ]; then
echo "PHP CodeSniffer bin not found or executable -> $PHPCS_BIN"
exit 1
fi
# stolen from template file
if git rev-parse --verify HEAD
then
against=HEAD
else
# Initial commit: diff against an empty tree object
against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi
# this is the magic:
# retrieve all files in staging area that are added, modified or renamed
# but no deletions etc
FILES=$(git diff-index --name-only --cached --diff-filter=ACMR $against -- )
if [ "$FILES" == "" ]; then
exit 0
fi
# create temporary copy of staging area
if [ -e $TMP_STAGING ]; then
rm -rf $TMP_STAGING
fi
mkdir $TMP_STAGING
# match files against whitelist
FILES_TO_CHECK=""
for FILE in $FILES
do
echo "$FILE" | egrep -q "$PHPCS_FILE_PATTERN"
RETVAL=$?
if [ "$RETVAL" -eq "0" ]
then
FILES_TO_CHECK="$FILES_TO_CHECK $FILE"
fi
done
if [ "$FILES_TO_CHECK" == "" ]; then
exit 0
fi
# execute the code sniffer
if [ "$PHPCS_IGNORE" != "" ]; then
IGNORE="--ignore=$PHPCS_IGNORE"
else
IGNORE=""
fi
if [ "$PHPCS_SNIFFS" != "" ]; then
SNIFFS="--sniffs=$PHPCS_SNIFFS"
else
SNIFFS=""
fi
if [ "$PHPCS_ENCODING" != "" ]; then
ENCODING="--encoding=$PHPCS_ENCODING"
else
ENCODING=""
fi
if [ "$PHPCS_IGNORE_WARNINGS" == "1" ]; then
IGNORE_WARNINGS="-n"
else
IGNORE_WARNINGS=""
fi
# Copy contents of staged version of files to temporary staging area
# because we only want the staged version that will be commited and not
# the version in the working directory
STAGED_FILES=""
for FILE in $FILES_TO_CHECK
do
ID=$(git diff-index --cached $against $FILE | cut -d " " -f4)
# create staged version of file in temporary staging area with the same
# path as the original file so that the phpcs ignore filters can be applied
mkdir -p "$TMP_STAGING/$(dirname $FILE)"
git cat-file blob $ID > "$TMP_STAGING/$FILE"
STAGED_FILES="$STAGED_FILES $TMP_STAGING/$FILE"
done
OUTPUT=$($PHPCS_BIN -s $IGNORE_WARNINGS --standard=$PHPCS_CODING_STANDARD $ENCODING $IGNORE $SNIFFS $STAGED_FILES)
RETVAL=$?
# delete temporary copy of staging area
rm -rf $TMP_STAGING
if [ $RETVAL -ne 0 ]; then
echo "$OUTPUT" | less
fi
exit $RETVAL