composer-reinstall

#!/usr/bin/env bash

#---------------------------------------------------------------------
usage ()
{
	cat <<EOT

${0##*/}
    Purges composer's configured \`vendor-dir\` and any symlinks
    from the \`bin-dir\`, then runs \`composer install\`. Designed
    to help in development when composer dependencies "get weird"
    and need to be forcibly reset.

Usage:
    bin/${0##*/}


EOT

	exit ${1:-0}  # Exit with code 0 unless an arg is passed to the method.
}
if [ "$1" = '-h' ]; then
	usage
fi


# Set up working vars.
COMPOSER_CONFIG_FILE="composer.json"
GUESSES=( "$(which composer)" "bin/composer" "$(which composer.phar)" "bin/composer.phar" )


# Bail out if there's no config file present.
if [ ! -e "$COMPOSER_CONFIG_FILE" ]; then
	echo "!! No composer config file at '$COMPOSER_CONFIG_FILE'."
	exit 2
fi
echo "## Found composer config at: ${COMPOSER_CONFIG_FILE}"


# Bail out if composer isn't available to us.
for GUESS in "$GUESSES"; do
	if [ -x "$GUESS" ]; then
		COMPOSER="$GUESS"
		break
	fi
done
if [ -z "$COMPOSER" ]; then
	echo "!! The 'composer' command was not found on this system."
	echo ""
	exit 1
fi
echo "## Found composer at: ${COMPOSER}"

COMPOSER_VENDOR_DIR="$($COMPOSER config --absolute vendor-dir)"
COMPOSER_BIN_DIR="$($COMPOSER config --absolute bin-dir)"

# Purge the symlinks from the bin folder first then clear the vendor folder entirely.
echo "## Removing bin-dir symlinks from: ${COMPOSER_BIN_DIR}"
find "$COMPOSER_BIN_DIR" -type l -delete;
echo "## Deleting vendor-dir: ${COMPOSER_VENDOR_DIR}"
rm -rf "$COMPOSER_VENDOR_DIR"

# Execute `composer install`
echo "## Running install."
"$COMPOSER" install --quiet --no-interaction --ignore-platform-reqs --optimize-autoloader "$@"