fix(cli): add output for cli init

Shows exactly same information as go-ipfs except for change of the cmd +
cat so `ipfs cat` turns into `jsipfs files cat` instead. Ref: issue #286

Author: victorb

src/cli/commands/init.js

@@ -32,6 +32,9 @@ module.exports = {
   handler (argv) {
     const path = utils.getRepoPath()
 
+    const log = utils.createLogger(true)
+    log(`initializing ipfs node at ${path}`)
+
     const repo = new IpfsRepo(path, {
       stores: Store
     })
@@ -41,7 +44,8 @@ module.exports = {
     ipfs.init({
       bits: argv.bits,
       force: argv.force,
-      emptyRepo: argv.emptyRepo
+      emptyRepo: argv.emptyRepo,
+      log
     }, function (err) {
       if (err) {
         console.error(err.toString())

src/cli/utils.js

@@ -49,3 +49,18 @@ exports.getIPFS = (callback) => {
 exports.getRepoPath = () => {
   return process.env.IPFS_PATH || os.homedir() + '/.ipfs'
 }
+
+exports.createLogger = (visible) => {
+  return (msg, newline) => {
+    if (newline === undefined) {
+      newline = true
+    }
+    if (visible) {
+      if (msg === undefined) {
+        msg = ''
+      }
+      msg = newline ? msg + '\n' : msg
+      process.stdout.write(msg)
+    }
+  }
+}

src/core/ipfs/init.js

@@ -9,6 +9,7 @@ const fs = require('fs')
 const importer = require('ipfs-unixfs-engine').importer
 const pull = require('pull-stream')
 const file = require('pull-file')
+const mh = require('multihashes')
 
 module.exports = function init (self) {
   return (opts, callback) => {
@@ -19,6 +20,7 @@ module.exports = function init (self) {
 
     opts.emptyRepo = opts.emptyRepo || false
     opts.bits = opts.bits || 2048
+    opts.log = opts.log || function () {}
 
     let config
     // Pre-set config values.
@@ -47,13 +49,16 @@ module.exports = function init (self) {
 
     // Generate peer identity keypair + transform to desired format + add to config.
     function generateAndSetKeypair () {
+      opts.log(`generating ${opts.bits}-bit RSA keypair...`, false)
       var keys = peerId.create({
         bits: opts.bits
       })
       config.Identity = {
         PeerID: keys.toB58String(),
         PrivKey: keys.privKey.bytes.toString('base64')
       }
+      opts.log('done')
+      opts.log('peer identity: ' + config.Identity.PeerID)
 
       writeVersion()
     }
@@ -108,6 +113,15 @@ module.exports = function init (self) {
         }),
         pull.filter(Boolean),
         importer(dag),
+        pull.through((el) => {
+          if (el.path === 'files/init-docs/docs') {
+            const hash = mh.toB58String(el.multihash)
+            opts.log('to get started, enter:')
+            opts.log()
+            opts.log(`\t jsipfs files cat /ipfs/${hash}/readme`)
+            opts.log()
+          }
+        }),
         pull.onEnd((err) => {
           if (err) return callback(err)