feat: add cid command (#1560)

This PR adds a `jsipfs cid` command with tools for formatting, converting and discovering properties of CIDs.

All the docs are here: https://github.com/ipfs-shipyard/js-cid-tool
Will resolve this for JS: ipfs/kubo#5229
go-ipfs counterpart: ipfs/kubo#5385

License: MIT
Signed-off-by: Alan Shaw <alan.shaw@protocol.ai>

package.json

@@ -92,6 +92,7 @@
     "boom": "^7.2.0",
     "bs58": "^4.0.1",
     "byteman": "^1.3.5",
+    "cid-tool": "~0.1.0",
     "cids": "~0.5.3",
     "debug": "^3.1.0",
     "err-code": "^1.1.2",

src/cli/commands/cid.js

@@ -0,0 +1,21 @@
+'use strict'
+
+const path = require('path')
+
+const cidCommandsPath = path.join(
+  __dirname, '..', '..', '..', 'node_modules', 'cid-tool', 'src', 'cli', 'commands'
+)
+
+module.exports = {
+  command: 'cid <command>',
+
+  description: 'Convert, format and discover properties of CIDs.',
+
+  builder (yargs) {
+    return yargs
+      .commandDir(cidCommandsPath)
+  },
+
+  handler (argv) {
+  }
+}

test/cli/commands.js

@@ -4,7 +4,7 @@
 const expect = require('chai').expect
 const runOnAndOff = require('../utils/on-and-off')
 
-const commandCount = 81
+const commandCount = 82
 describe('commands', () => runOnAndOff((thing) => {
   let ipfs