Git pre-commit hook

gistfile1.sh

#!/bin/bash

# Author: Anatooly <anatooly.com>
# Based on code by Nikolaos Dimopoulos 
# Based on code by Remigijus Jarmalavicius  
# Checks the files to be committed for the presence of print_r(), var_dump(), die()
# The array below can be extended for further checks

php_checks[1]="var_dump("
php_checks[2]="print_r("
php_checks[3]="die("
php_checks[4]="pr("
php_checks[5]="fb(" # FireBug

js_checks[1]="console.log("
js_checks[2]="debugger"
js_checks[3]="alert"


ROOT_DIR="$(pwd)/"
LIST=$(git status | grep -e '\#.*\(modified\|added\)')
ERRORS_BUFFER=""

# PHP debugger
element_count=${#php_checks[@]}
let "element_count = $element_count + 1"

for file in $LIST
do
    if [ "$file" == '#' ]; then
        continue
    fi
    if [ $(echo "$file" | grep 'modified') ]; then
        FILE_ACTION="modified"
    elif [ $(echo "$file" | grep 'added') ]; then
        FILE_ACTION="added"
    else 
        EXTENSION=$(echo "$file" | grep ".php$")
        if [ "$EXTENSION" != "" ]; then

            # php --syntax-check
            SYNTAX_CHECK=$(php -l $ROOT_DIR$file)
            echo "> ${SYNTAX_CHECK}"

            index=1
            while [ "$index" -lt "$element_count" ]
            do
                echo "Checking $FILE_ACTION file: $file ${php_checks[$index]}" 
                ERRORS=$(grep "${php_checks[$index]}" $ROOT_DIR$file >&1)
                if [ "$ERRORS" != "" ]; then
                    if [ "$ERRORS_BUFFER" != "" ]; then
                        ERRORS_BUFFER="$ERRORS_BUFFER\n$ERRORS"
                    else
                        ERRORS_BUFFER="$ERRORS"
                    fi
                    echo "> ${php_checks[$index]} found in file: $file "
                fi
                let "index = $index + 1"
            done
        fi
    fi
done

# JS debugger
element_count=${#js_checks[@]}
let "element_count = $element_count + 1"

for file in $LIST
do
    if [ "$file" == '#' ]; then
        continue
    fi
    if [ $(echo "$file" | grep 'modified') ]; then
        FILE_ACTION="modified"
    elif [ $(echo "$file" | grep 'added') ]; then
        FILE_ACTION="added"
    else 
        EXTENSION=$(echo "$file" | grep ".js$")
        if [ "$EXTENSION" != "" ]; then

            index=1
            while [ "$index" -lt "$element_count" ]
            do
                echo "Checking $FILE_ACTION file: $file ${js_checks[$index]}" 
                ERRORS=$(grep "${js_checks[$index]}" $ROOT_DIR$file >&1)
                if [ "$ERRORS" != "" ]; then
                    if [ "$ERRORS_BUFFER" != "" ]; then
                        ERRORS_BUFFER="$ERRORS_BUFFER\n$ERRORS"
                    else
                        ERRORS_BUFFER="$ERRORS"
                    fi
                    echo "> ${js_checks[$index]} found in file: $file "
                fi
                let "index = $index + 1"
            done
        fi
    fi
done

# Count the correct number of pairs of symbols
for file in $LIST
do
    if [ "$file" == '#' ]; then
        continue
    fi
    if [ $(echo "$file" | grep 'modified') ]; then
        FILE_ACTION="modified"
    elif [ $(echo "$file" | grep 'added') ]; then
        FILE_ACTION="added"
    else 
        EXTENSION=$(echo "$file" | grep ".*$")
        if [ "$EXTENSION" != "" ]; then

            # ( => )
            echo "Checking $FILE_ACTION file: $file ( => )" 

            left_count=$(grep -o "(" $ROOT_DIR$file >&1 | wc -l )
            right_count=$(grep -o ")" $ROOT_DIR$file >&1 | wc -l )

            if [ "$left_count" != "$right_count" ]; then
                if [ "$ERRORS_BUFFER" != "" ]; then
                    ERRORS_BUFFER="$ERRORS_BUFFER\n$ERRORS"
                else
                    ERRORS_BUFFER="$ERRORS"
                fi
                echo "${left_count} ( => ${right_count} ) found in file: $file "
            fi

            # [ => ]
            echo "Checking $FILE_ACTION file: $file [ => ]" 

            left_count=$(grep -o "\[" $ROOT_DIR$file >&1 | wc -l )
            right_count=$(grep -o "\]" $ROOT_DIR$file >&1 | wc -l )

            if [ "$left_count" != "$right_count" ]; then
                if [ "$ERRORS_BUFFER" != "" ]; then
                    ERRORS_BUFFER="$ERRORS_BUFFER\n$ERRORS"
                else
                    ERRORS_BUFFER="$ERRORS"
                fi
                echo "${left_count} [ => ${right_count} ] found in file: $file "
            fi

            # { => }
            echo "Checking $FILE_ACTION file: $file { => }" 

            left_count=$(grep -o "{" $ROOT_DIR$file >&1 | wc -l )
            right_count=$(grep -o "}" $ROOT_DIR$file >&1 | wc -l )

            if [ "$left_count" != "$right_count" ]; then
                if [ "$ERRORS_BUFFER" != "" ]; then
                    ERRORS_BUFFER="$ERRORS_BUFFER\n$ERRORS"
                else
                    ERRORS_BUFFER="$ERRORS"
                fi
                echo "${left_count} { => ${right_count} } found in file: $file "
            fi

        fi
    fi
done

if [ "$ERRORS_BUFFER" != "" ]; then
    echo 
    echo "These errors were found in try-to-commit files: "
    echo -e $ERRORS_BUFFER
    echo 
    echo "WARNING! Remove debugger information for production."
    #echo "Can't commit, fix errors first."
    #exit 1
else
    echo "Commited successfully."
fi