refactor: simplify bump function and improve version handling

scripts/bump-patch.mjs

@@ -2,47 +2,34 @@
 
 import fs from 'node:fs';
 import path from 'node:path';
-import { fileURLToPath } from 'node:url';
 import semver from 'semver';
 
-function bump(fileName) {
-    const __filename = fileURLToPath(import.meta.url);
-    const __dirname = path.dirname(__filename);
-
-    const filePath = path.resolve(__dirname, '..', fileName);
-
-    if (!bump.nextVersion) {
-        const packageJsonPath = path.resolve(__dirname, '../package.json');
-        const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, 'utf8'));
-        const version = packageJson.version;
-
-        if (typeof version !== 'string') {
-            throw new Error('package.json does not contain a string "version" field.');
-        }
-
-        const nextVersion = semver.inc(version, 'patch');
-
-        if (!nextVersion) {
-            throw new Error(`Unsupported semver format: "${version}"`);
-        }
-
-        bump.nextVersion = nextVersion;
-    }
+function bump(fileName, version) {
+    const filePath = path.resolve(process.cwd(), fileName);
 
     if (!fs.existsSync(filePath)) {
         throw new Error(`File not found: ${filePath}`);
     }
 
     const json = JSON.parse(fs.readFileSync(filePath, 'utf8'));
-    json.version = bump.nextVersion;
+    const currentVersion = json.version;
 
-    if (path.basename(filePath) === 'package-lock.json' && json.packages?.['']) {
-        json.packages[''].version = bump.nextVersion;
+    if (typeof currentVersion !== 'string') {
+        throw new Error(`${fileName} does not contain a string "version" field.`);
     }
 
+    const nextVersion = version ?? semver.inc(currentVersion, 'patch');
+
+    if (!nextVersion) {
+        throw new Error(`Unsupported semver format: "${currentVersion}"`);
+    }
+
+    json.version = nextVersion;
+
     fs.writeFileSync(filePath, `${JSON.stringify(json, null, 4)}\n`, 'utf8');
-    console.log(`Bumped version in ${fileName} to ${bump.nextVersion}`);
+    console.log(`Bumped version in ${fileName} to ${nextVersion}`);
+    return nextVersion;
 }
 
-bump('package.json');
-bump('package-lock.json');
+const bumpedVersion = bump('package.json');
+bump('package-lock.json', bumpedVersion);