calypso-cannibalizer

#!/bin/bash

if [ -z "$1" ]
  then
    echo "Please provide a filename/dirname from calypso as first parameter"
    exit
fi
if [ -z "$2" ]
  then
    echo "Please provide a destination directory"
    exit
fi

if [ ! -e "$2" ]
  then
    echo "Please provide a valid and existing destination directory"
    exit
fi

component=$1
destination=$2
tmpdir=`mktemp -d` 
echo "Cloning the 'master' branch from Calypso's repository into temporary dir $tmpdir"
echo
git clone -q -b master --depth 1 https://github.com/Automattic/wp-calypso $tmpdir
sourcecomponent=$tmpdir/$component

if [ ! -e $sourcecomponent ] 
  then
    echo $tmpdir/$component
    echo "Requested component does not exist in repository"
    exit
fi



finalcomponent=`basename $component`
final=$destination/$finalcomponent

hasimports() {
  grepit $1 >/dev/null
}

grepit() {
  grep 'import\|require' -r $1 | grep -o -e "'.*'" |sort|uniq 
}

cp -a $sourcecomponent $destination && hasimports $final &&
	echo "Component declares these imports/requires:" &&
	echo "  Probably you'll need to npm install them for the component to work." &&
	echo &&
	grepit $final 

echo "Component succesfully cannibalized in $final"
echo