init version

Author: Lukas Oppermann

cli.js

@@ -0,0 +1,26 @@
+#!/usr/bin/env node
+'use strict'
+
+const argv = require('yargs').argv
+const meow = require('meow')
+const nodeFileRev = require('./node-file-rev')
+
+const cli = meow(`
+	Usage
+	  $ node-file-rev <input>
+
+	Options
+	  --manifest, -m  Specify the path to the manifest file, default rev-manifest.json
+
+	Examples
+	  $ node-file-rev assets/css/app.css,assets/js/app.js --manifest=assets/rev-manifest.json
+`, {
+	flags: {
+		manifest: {
+			type: 'string',
+			alias: 'm',
+      default: 'rev-manifest.json'
+		}
+	}
+})
+nodeFileRev(cli.input[0], cli.flags, cli)

node-file-rev.js

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+const hasha = require('hasha')
+const fs = require('fs')
+const editJsonFile = require('edit-json-file')
+const chalk = require('chalk')
+
+module.exports = (files, flags, cli) => {
+  if (files === undefined) {
+    console.log(chalk.bold.red('⛔ ERROR: An input file needs to be provided.'))
+    cli.showHelp()
+    return
+  }
+  // if argumens are provided
+  files.split(',').filter(file => file.length > 0).forEach( filePath => {
+    hasha.fromFile(filePath, { algorithm: 'md5' }).then(hash => {
+      // split filename
+      let fileArray = filePath.split('.')
+      // get file path without extension
+      let filename = fileArray.slice(0, -1).join('.')
+      // get file extension
+      let extension = fileArray.pop()
+      // create hashed filename
+      let newFilename = `${filename}-${hash}.${extension}`
+      // append hash to file
+      fs.rename(filePath, newFilename, (err) => {
+        if (err) {
+          throw err
+        }
+        // If the file doesn't exist, the content will be an empty object by default.
+        let jsonFile = editJsonFile(flags.manifest)
+        // add file version
+        jsonFile.set(filePath.replace(/\./g, '\\.'), newFilename)
+        // save to json
+        jsonFile.save()
+      })
+    })
+  })
+
+}