From d42b0fa2dd941a3622e15b3df42b7f7c35168a36 Mon Sep 17 00:00:00 2001
From: bumi <hello@michaelbumann.com>
Date: Wed, 4 Apr 2018 22:24:33 +0200
Subject: [PATCH] Add a general purpose contract CLI

This allows to call any method on any contract using the CLI.

for example:

  $ truffle exec scripts/cli.js Operator proposalsCount
---
 README.mdown   | 11 +++++++++++
 scripts/cli.js | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 scripts/cli.js

diff --git a/README.mdown b/README.mdown
index ce60c37..b4e2b7d 100644
--- a/README.mdown
+++ b/README.mdown
@@ -68,6 +68,17 @@ At some point these should be moved into a real nice CLI.
 
 To run these scripts use `truffle exec`. For example: `truffle exec scripts/add-proposal.js` 
 
+### cli.js
+
+Call any function on any contract:
+
+    $ truffle exec scripts/cli.js <Contract Name> <Function> [<optional> <arguments>]
+    
+    For example: 
+    $ truffle exec scripts/cli.js Operator proposalsCount
+
+Please note that the contract name and the function are case sensitive. 
+
 ### add-contributor.js
 Adds a new core contributor, creates a proposal for the new contributor and votes for that one. 
 
diff --git a/scripts/cli.js b/scripts/cli.js
new file mode 100644
index 0000000..bccb2f3
--- /dev/null
+++ b/scripts/cli.js
@@ -0,0 +1,34 @@
+module.exports = function(callback) {
+  const Registry = artifacts.require('./Registry.sol');
+  Registry.deployed().then(async (registry) => {
+    let contractName = process.argv[4];
+    let method = process.argv[5];
+    let args = process.argv.slice(6);
+
+    if(!contractName) {
+      console.log("Usage:")
+      console.log("  truffle exec scripts/cli.js <Contract name> <method to call> [<optional> <arguments>]");
+      callback();
+      return;
+    }
+
+    let contractAddress = await registry.getProxyFor(contractName);
+    console.log(`Using ${contractName} at ${contractAddress}`);
+    let contract = await artifacts.require(`./${contractName}`).at(contractAddress);
+
+    console.log(`Calling ${method} with ${JSON.stringify(args)}`);
+
+    contract[method](...args).then((result) => {
+      console.log('Result:');
+      console.log(result);
+
+      callback();
+    }).catch((error) => {
+      console.log("Call failed. Probably the contract raised an error?\n");
+      console.log("...");
+      callback(error);
+    });
+
+  })
+
+}