1 files changed, 47 insertions, 0 deletions
diff --git a/scripts/check_binary_size.js b/scripts/check_binary_size.js
new file mode 100755
index 0000000000..70ddbc7e0e
--- /dev/null
+++ b/scripts/check_binary_size.js
@@ -0,0 +1,47 @@
+#!/usr/bin/env node
+
+const jwt = require('jsonwebtoken');
+const github = require('@octokit/rest')();
+const prettyBytes = require('pretty-bytes');
+const fs = require('fs');
+
+const SIZE_CHECK_APP_ID = 14028;
+const SIZE_CHECK_APP_INSTALLATION_ID = 229425;
+
+const file = process.argv[2];
+const label = process.argv[3];
+const {size} = fs.statSync(file);
+
+process.on('unhandledRejection', error => {
+    console.log(error);
+    process.exit(1)
+});
+
+const key = Buffer.from(process.env['SIZE_CHECK_APP_PRIVATE_KEY'], 'base64').toString('binary');
+const payload = {
+    exp: Math.floor(Date.now() / 1000) + 60,
+    iat: Math.floor(Date.now() / 1000),
+    iss: SIZE_CHECK_APP_ID
+};
+
+const token = jwt.sign(payload, key, {algorithm: 'RS256'});
+github.authenticate({type: 'app', token});
+
+github.apps.createInstallationToken({installation_id: SIZE_CHECK_APP_INSTALLATION_ID})
+    .then(({data}) => {
+        github.authenticate({type: 'token', token: data.token});
+        return github.checks.create({
+            owner: 'mapbox',
+            repo: 'mapbox-gl-native',
+            name: `Size - ${label}`,
+            head_branch: process.env['CIRCLE_BRANCH'],
+            head_sha: process.env['CIRCLE_SHA1'],
+            status: 'completed',
+            conclusion: 'success',
+            completed_at: new Date().toISOString(),
+            output: {
+                title: prettyBytes(size),
+                summary: `\`${file}\` is ${size} bytes (${prettyBytes(size)})`
+            }
+        });
+    });