falafel-bash

transform bash shell ast on a recursive walk

This module is like falafel, but for bash instead of javascript.

example

given a shell script:

#!/bin/bash 
sudo rmmod r8169 && sudo modprobe r8169
sudo pkill wpa_supplicant
sudo service networking restart
 
echo you can mention sudo
echo you can even start with \
sudo on its own line yay

we can rewrite sudo command to SUDO:

var falafel = require('falafel-bash')
var fs = require('fs')
var src = fs.readFileSync('rewire.sh','utf8')
 
console.log(falafel(src, function (node) {
  if (node.type === 'simple_command' && node.name.text === 'sudo') {
    node.name.update('SUDO')
  }
}).toString())

output:

#!/bin/bash
SUDO rmmod r8169 && SUDO modprobe r8169
SUDO pkill wpa_supplicant
SUDO service networking restart

echo you can mention sudo
echo you can even start with \
sudo on its own line yay

api

var falafel = require('falafel')

var output = falafel(src, fn)

Walk the bash source code string src with a function fn(node).

Nodes always have a node.type and may have other properties.

var str = node.source()

Query the source string for the current node.

node.update(str)

Update the current node's content by a string str.

output.toString()

Get a string from the transformed input. You can call .toString() sometime in the future if you have

install

npm install falafel-bash

license

BSD