feat: op global package cache (#168)

* feat: op global package cache

* feat: npm package info cache use detail version number

Author: caohuilin

.changeset/lucky-pots-sleep.md

@@ -0,0 +1,7 @@
+---
+"@modern-js/codesmith": patch
+---
+
+feat: op global package cache
+
+feat: 优化 global 包缓存逻辑，在版本不变时，缓存一直有效

packages/core/src/utils/downloadPackage.ts

@@ -57,12 +57,16 @@ export async function getGeneratorVersion(
   return version;
 }
 
-async function isValidCache(cacheDir: string) {
+async function isValidCache(cacheDir: string, pkgName: string) {
   /* generator cache can use
    * 1. .codesmith.completed exist
    * 2. cache time is within the validity period
+   * 3. 对于 @modern-js/codesmith-global 包，缓存一直有效
    */
   if (await fsExists(`${cacheDir}/.codesmith.completed`)) {
+    if (pkgName === '@modern-js/codesmith-global') {
+      return true;
+    }
     const preCacheTimeStr = await fs.readFile(
       `${cacheDir}/.codesmith.completed`,
       {
@@ -163,7 +167,7 @@ export async function downloadPackage(
   logger?.debug?.(
     `💡 [Download Generator Package]: ${pkgName}@${version} to ${targetDir}`,
   );
-  if ((await fsExists(targetDir)) && (await isValidCache(targetDir))) {
+  if ((await fsExists(targetDir)) && (await isValidCache(targetDir, pkgName))) {
     return targetDir;
   }
   await fs.remove(targetDir);

packages/core/src/utils/getNpmPackageInfo.ts

@@ -21,7 +21,7 @@ export async function getNpmPackageInfo(
   pkgVersion: string,
   options?: Options,
 ): Promise<PackageInfo> {
-  const packageName = `${pkgName}/${pkgVersion}`;
+  const packageName = `${pkgName}@${pkgVersion}`;
   const packageInfo = NpmPackageInfoCache.get(packageName);
   if (packageInfo) {
     return packageInfo;
@@ -36,7 +36,9 @@ export async function getNpmPackageInfo(
     `Get npm package info of '${pkgName}'`,
   );
 
-  NpmPackageInfoCache.set(packageName, response.data);
+  const { version } = response.data;
+
+  NpmPackageInfoCache.set(`${pkgName}@${version || pkgVersion}`, response.data);
 
   return response.data;
 }