Add an autofix for lang-go

.autofix/fixers/update-lang-go.js

@@ -0,0 +1,29 @@
+const os = require('os');
+const util = require('util');
+const exec = util.promisify(require('child_process').exec);
+
+exports.register = async (fixers) => {
+  const { stdout, stderr } = await exec('gvm listall');
+  if (stderr) {
+    throw stderr;
+  }
+
+  const patchVersionReplacements = {};
+  for (const line of stdout.split('\n').slice(1,-1)) {
+    const match = line.trim().match(/^go(\d+\.\d+\.)(\d+)$/);
+    if (!match) {
+      continue;
+    }
+
+    const pattern = match[1].replace(/\./g, '\\.') + '[0-9][0-9]*';
+    patchVersionReplacements[pattern] = 'go' + match[1] + match[2];
+  }
+
+  fixers[0].push({
+    id: 'update-lang-go',
+    cmd: Object.keys(patchVersionReplacements).map(pattern => {
+        return `sed ${os.type() === 'Darwin' ? '-i "" -E' : '-i -e'} "s/\\(GO_VERSION.*\\)${pattern}/\\1${patchVersionReplacements[pattern]}/g" chunks/lang-go/chunk.yaml`;
+    }).join('\n'),
+    description: 'update lang go',
+  });
+};