Output unpacked plugin dir in addition to tar from "build-plugin" command

Summary: "plugin-build" command will produce dir with unpacked plugin sources in addition to tar package. This is required because for publishing to Marketplace we need to retrieve few files from the output package, like "readme.md" and "package.json" and it's better to have it already unpacked rather than pack and then unpack to get these files.

Reviewed By: passy

Differential Revision: D28409930

fbshipit-source-id: 51c8eeb848a72850a2f126eb91a563d52851ed41

desktop/scripts/build-plugin.ts

@@ -48,6 +48,11 @@ const argv = yargs
       type: 'string',
       alias: 'o',
     },
+    'output-unpacked': {
+      description: 'Where to save the unpacked plugin package',
+      type: 'string',
+      alias: 'ou',
+    },
   })
   .help()
   .strict()
@@ -58,6 +63,7 @@ async function buildPlugin() {
   const previousChecksum = argv.checksum;
   const pluginDir = await resolvePluginDir(pluginName);
   const outputFileArg = argv.output;
+  const outputUnpackedArg = argv['output-unpacked'];
   const minFlipperVersion = argv['min-flipper-version'];
   const packageJsonPath = path.join(pluginDir, 'package.json');
   await runBuild(pluginDir, false);
@@ -71,6 +77,9 @@ async function buildPlugin() {
           'plugins',
           path.relative(pluginsDir, pluginDir) + '.tgz',
         );
+    const outputUnpackedDir = outputUnpackedArg
+      ? path.resolve(outputUnpackedArg)
+      : path.join(distDir, 'plugins', path.relative(pluginsDir, pluginDir));
     await fs.ensureDir(path.dirname(outputFile));
     await fs.remove(outputFile);
     const {name: tmpDir} = tmp.dirSync();
@@ -84,12 +93,13 @@ async function buildPlugin() {
         }
         packageJson.engines.flipper = minFlipperVersion;
       }
-      if (argv.version) {
-        packageJson.version = argv.version;
-      }
+      packageJson.version = argv.version;
       await fs.writeJson(packageJsonPath, packageJson, {spaces: 2});
       const packCmd = `yarn pack --cwd "${pluginDir}" --filename ${outputFile}`;
       execSync(packCmd, {cwd: rootDir, stdio: 'inherit'});
+      await fs.remove(outputUnpackedDir);
+      await fs.copy(pluginDir, outputUnpackedDir, {overwrite: true});
+      console.log(`Unpacked package saved to ${outputUnpackedDir}`);
     } finally {
       await fs.move(packageJsonBackupPath, packageJsonPath, {overwrite: true});
       await fs.remove(tmpDir);