From 31c78e570718eba763e6ab6c6bc0089e64efc62a Mon Sep 17 00:00:00 2001
From: Patrik Oldsberg <poldsberg@gmail.com>
Date: Sun, 4 Sep 2022 21:19:05 +0200
Subject: [PATCH] scripts: add workspace range migration script

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
---
 scripts/switch-to-workspace-ranges.js | 78 +++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100755 scripts/switch-to-workspace-ranges.js

diff --git a/scripts/switch-to-workspace-ranges.js b/scripts/switch-to-workspace-ranges.js
new file mode 100755
index 0000000000..67d3602887
--- /dev/null
+++ b/scripts/switch-to-workspace-ranges.js
@@ -0,0 +1,78 @@
+#!/usr/bin/env node
+/*
+ * Copyright 2021 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+const fs = require('fs-extra');
+const { resolve: resolvePath } = require('path');
+const { getPackages } = require('@manypkg/get-packages');
+
+/** @typedef {import("@manypkg/get-packages").Package["packageJson"]} Pkg */
+
+function transformDepField(deps) {
+  const newPkg = JSON.parse(JSON.stringify(deps));
+
+  for (const [name, version] of Object.entries(newPkg)) {
+    if (name.startsWith('@backstage/') || name.startsWith('@internal/')) {
+      const match = version.match(/^(\^|~)?[0-9]+\.[0-9]+\.[0-9]+/);
+      if (match) {
+        const specifier = match[1] || '*';
+        newPkg[name] = `workspace:${specifier}`;
+      }
+    }
+  }
+  return newPkg;
+}
+
+/**
+ *
+ * @param {Pkg} pkg
+ */
+function transformDeps(pkg) {
+  /** @type {Pkg} */
+  const newPkg = JSON.parse(JSON.stringify(pkg));
+
+  if (newPkg.dependencies) {
+    newPkg.dependencies = transformDepField(newPkg.dependencies);
+  }
+  if (newPkg.devDependencies) {
+    newPkg.devDependencies = transformDepField(newPkg.devDependencies);
+  }
+  if (newPkg.peerDependencies) {
+    newPkg.peerDependencies = transformDepField(newPkg.peerDependencies);
+  }
+  if (newPkg.optionalDependencies) {
+    newPkg.optionalDependencies = transformDepField(
+      newPkg.optionalDependencies,
+    );
+  }
+
+  return newPkg;
+}
+
+async function main() {
+  const { root, packages } = await getPackages();
+  for (const { dir, packageJson } of [root, ...packages]) {
+    const pkgPath = resolvePath(dir, 'package.json');
+
+    const newPackageJson = transformDeps(packageJson);
+    await fs.writeJson(pkgPath, newPackageJson, { spaces: 2 });
+  }
+}
+
+main().catch(e => {
+  console.error(e);
+  process.exit(1);
+});