From dc4e454ed45d789d75d6686f2ec81dc6ce21146a Mon Sep 17 00:00:00 2001
From: Haythem Sellami <sellamihaythem96@gmail.com>
Date: Mon, 20 Apr 2020 15:02:42 +0100
Subject: [PATCH] script to calculate contract bytecode

---
 package-lock.json                    | 13 ++++++++++---
 package.json                         |  1 +
 scripts/CalculateContractBytecode.js | 24 ++++++++++++++++++++++++
 3 files changed, 35 insertions(+), 3 deletions(-)
 create mode 100644 scripts/CalculateContractBytecode.js

diff --git a/package-lock.json b/package-lock.json
index 33c8493..6636c0c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6656,9 +6656,9 @@
       }
     },
     "minimist": {
-      "version": "0.0.8",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-      "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
     },
     "minipass": {
       "version": "2.9.0",
@@ -6683,6 +6683,13 @@
       "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
       "requires": {
         "minimist": "0.0.8"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "0.0.8",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
+        }
       }
     },
     "mkdirp-promise": {
diff --git a/package.json b/package.json
index d9c651c..2a10efe 100644
--- a/package.json
+++ b/package.json
@@ -114,6 +114,7 @@
   },
   "homepage": "https://github.com/aparnakr/OptionsProtocol#readme",
   "dependencies": {
+    "minimist": "^1.2.5",
     "truffle-hdwallet-provider": "^1.0.17"
   }
 }
diff --git a/scripts/CalculateContractBytecode.js b/scripts/CalculateContractBytecode.js
new file mode 100644
index 0000000..ca80269
--- /dev/null
+++ b/scripts/CalculateContractBytecode.js
@@ -0,0 +1,24 @@
+// This simple script tells you how big your contract byte code is and how much you have until you exceed
+// the current block limit as defined by EIP170.
+
+const argv = require("minimist")(process.argv.slice(), { string: ["contract"] });
+const contractName = argv.contract;
+
+if (!contractName) {
+  console.log("Please enter the contract name as a parameter as `--contract <name>`.");
+  return;
+}
+var child = require("child_process").exec("truffle compile");
+child.stdout.pipe(process.stdout);
+child.on("exit", function() {
+  console.log("finished compiling 🚀!");
+  console.log("loading", contractName + ".json");
+  let obj = require("./../build/contracts/" + contractName + ".json");
+
+  const byteCodeSize = (obj.bytecode.length - 2) / 2;
+  const remainingSize = 2 ** 14 + 2 ** 13 - (obj.bytecode.length - 2) / 2;
+  console.log("Contract is", byteCodeSize, "bytes in size.");
+  console.log("This leaves a total of", remainingSize, "bytes within the EIP170 limit 🔥.");
+
+  process.exit();
+}); 
\ No newline at end of file