support full package name

src/install-plugin.ts

@@ -45,6 +45,7 @@ async function checkPluginExists(name: string) {
   const deps = await getPackageJsonPackages();
   const entry = Object.entries(deps).find(
     ([packageName, version]) =>
+      packageName === name ||
       packageName === `@koishijs/plugin-${name}` ||
       packageName.endsWith(`koishi-plugin-${name}`),
   );
@@ -99,14 +100,25 @@ async function installPlugin(name: string, version?: string) {
     return;
   }
   const installList: string[] = [];
-  if (version) {
-    installList.push(`@koishijs/plugin-${name}@${version}`);
-    installList.push(`koishi-plugin-${name}@${version}`);
+  const communityPrefix = 'koishi-plugin-';
+  const officialPrefix = '@koishijs/plugin-';
+  if (name.includes(communityPrefix) || name.startsWith(officialPrefix)) {
+    if (version) {
+      installList.push(`${name}@${version}`);
+    } else {
+      installList.push(`${name}@latest`);
+      installList.push(`${name}@next`);
+    }
   } else {
-    installList.push(`@koishijs/plugin-${name}@next`);
-    installList.push(`@koishijs/plugin-${name}@latest`);
-    installList.push(`koishi-plugin-${name}@next`);
-    installList.push(`koishi-plugin-${name}@latest`);
+    if (version) {
+      installList.push(`${officialPrefix}${name}@${version}`);
+      installList.push(`${communityPrefix}${name}@${version}`);
+    } else {
+      installList.push(`${officialPrefix}${name}@next`);
+      installList.push(`${officialPrefix}${name}@latest`);
+      installList.push(`${communityPrefix}${name}@next`);
+      installList.push(`${communityPrefix}${name}@latest`);
+    }
   }
   const result = await tryInstallPackages(installList);
   if (!result) {