feat: 🎸 make changelog config customizable

src/getConfig.js

@@ -0,0 +1,48 @@
+/* eslint-disable global-require, import/no-dynamic-require */
+const path = require('path');
+const defaults = require('./defaults');
+
+const configFiles = [
+  'changelog.config.js',
+  'changelog.config.json'
+];
+
+const findOverrides = () => {
+  const dir = process.cwd();
+
+  for (const file of configFiles) {
+    try {
+      return require(path.join(dir, file));
+    // eslint-disable-next-line no-empty
+    } catch (error) {}
+  }
+
+  try {
+    const {changelog} = require(path.join(dir, 'package.json'));
+
+    if (changelog) {
+      return changelog;
+    }
+  // eslint-disable-next-line no-empty
+  } catch (error) {}
+
+  return {};
+};
+
+const getConfig = () => {
+  const overrides = findOverrides();
+
+  if (typeof overrides !== 'object') {
+    console.log(new TypeError('Expected changelog config to be an object.'));
+
+    // eslint-disable-next-line no-process-exit
+    process.exit(1);
+  }
+
+  return {
+    ...defaults,
+    ...overrides
+  };
+};
+
+module.exports = getConfig;

src/index.js

@@ -1,4 +1,4 @@
 const createPrompter = require('./createPrompter');
-const config = require('./defaults');
+const getConfig = require('./getConfig');
 
-module.exports = createPrompter(config);
+module.exports = createPrompter(getConfig());