shopware pre-commit hook for the forgetful

pre-commit

#!/usr/bin/env bash
#
# some sanity checks for shopware
# 
# install: move to .git/hooks/pre-commit and chmod +x the file

# colors for output
nocolor='\033[0m'
green='\033[0;32m'
orange='\033[0;33m'
red='\033[0;31m'

warn() {
    echo -e  "${orange} WARN: $1 ${nocolor}" 2>&1
}
err() {
    echo -e  "${red} ERROR: $1 ${nocolor}" 2>&1
}

# absolute paths of changes: added, modified, deleted, renamed, copied
changepath=$(git status --porcelain | grep -E '^[AMDRC]' | awk '{ print $2 }')

# mention paths that usually go untouched
whitelist="engine/Shopware/Plugins/"
while read -r corepath; do
    if echo "$changepath" | grep -v "$whitelist" | grep -Eq "$corepath"; then
        warn "core application path modified - $corepath"
    fi
done <<'EOF'
^engine/
^vendor/
^themes/Backend/
^themes/Frontend/Bare/
^themes/Frontend/Responsive/
EOF

for file in $changepath; do

    # is this a file
    if [ -e "$file" ]; then

        # call out big file commits
        limit=10000000 # 10 megabytes
        filesize=$(stat --printf=\%s "$file")
        if [ $filesize -gt $limit ]; then
            warn "filesize exceeds 10 MB limit - $filesize bytes $file"
        fi

        # equivalent to runPhpLint
        if echo "$file" | grep -Eq '\.php'; then
            line=$(php -l $file 2>&1 >/dev/null)
            if [ -n "$line" ]; then
                err "$line"
            fi
        fi
    fi

done

# shopware does additional checks in build/gitHooks/pre-commit:
#
# runPhpCsFixer
# runEsLint
# runMigrationCheck