Universal po mo php file script for WordPress plugins

i18n.sh

#!/usr/bin/env bash

cd "$(dirname $0)/.."

[ -z "$1" ] && echo "Usage: $0 command" && echo "commands:" && echo "make-pot  : re-generate POT file from source" && echo "update-po : update PO files from POT file" && echo "make-mo : generate MO and l10n.php files from PO files" && exit 1

# find textdomain from ./*php
for file in $(find . -name '*.php'); do
  if grep -q "Text Domain:" "$file"; then
    TEXTDOMAIN=$(grep -o "Text Domain:\s*\([^'\"]*\)" "$file" | sed "s/Text Domain:\s*\([^'\"]*\)/\1/")
    TEXTDOMAIN=$(echo "$TEXTDOMAIN" | xargs)
    break
  fi
done

if [ -z "$TEXTDOMAIN" ]; then
    echo "Text Domain not found in any PHP file"
    echo "Make sure the main PHP file has a comment block with the Text Domain in it based on WordPress standards."
    exit 1
fi

echo "Text Domain: $TEXTDOMAIN" >&2

if ! command -v wp &> /dev/null; then
  wp () {
    if [ ! -f wp-cli.phar ]; then
      curl --silent --insecure -L -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar 2>/dev/null
      chmod 755 wp-cli.phar
    fi
    ./wp-cli.phar "$@"
  }
fi

case "$1" in
    "make-pot")
        wp i18n make-pot --domain=$TEXTDOMAIN . languages/$TEXTDOMAIN.pot --exclude=languages
        ;;
    "update-po")
        wp i18n update-po languages/$TEXTDOMAIN.pot languages/
        ;;
    "make-mo")
        wp i18n make-mo languages/
        wp i18n make-php languages/
        ;;
    *)
        echo "Unknown command"
        ;;
esac