rename from ts to tsx in pkg and pkg-lib

Summary: mass rename files

Reviewed By: passy

Differential Revision: D33890034

fbshipit-source-id: 1c654a4f7f5b83eaa56a8c11df863003e8d7bed7

desktop/pkg-lib/src/computePackageChecksum.tsx

@@ -0,0 +1,87 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import packlist from 'npm-packlist';
+import path from 'path';
+import crypto from 'crypto';
+import fs from 'fs-extra';
+
+export default async function computePackageChecksum(
+  dir: string,
+  checksumFilePath?: string,
+): Promise<string> {
+  const fullChecksumFilePath = checksumFilePath
+    ? path.resolve(dir, checksumFilePath)
+    : undefined;
+  if (fullChecksumFilePath) {
+    // This block is an optimisation to not recompute checksum if nothing changed.
+    // tsbuildinfo file is changed every time when typescript compiler re-compiles anything,
+    // so we could compare its modification date with checksum modification date to
+    // decide whether we need to re-compute checksum or we can just use already computed one.
+    const tsBuildInfoPath = path.join(dir, 'tsconfig.tsbuildinfo');
+    try {
+      const [tsBuildInfoStat, checksumStat] = await Promise.all([
+        fs.stat(tsBuildInfoPath),
+        fs.stat(fullChecksumFilePath),
+      ]);
+      if (checksumStat.mtime > tsBuildInfoStat.mtime) {
+        return (await fs.readFile(fullChecksumFilePath)).toString();
+      }
+    } catch {}
+  }
+  const hash = crypto.createHash('sha1');
+  hash.setEncoding('hex');
+  const files = (await packlist({path: dir})).sort();
+  for (const file of files) {
+    const segments = file.split(path.sep);
+    if (segments.length > 0 && segments[0] === 'docs') {
+      continue;
+    }
+
+    const filePath = path.resolve(dir, file);
+
+    if (filePath === fullChecksumFilePath) {
+      // If there is already existing checksum file, we need to ignore it as it is not a part of package content.
+      continue;
+    }
+
+    // add hash of relative normalized file path
+    hash.write(process.platform === 'win32' ? file.replace(/\\/g, '/') : file);
+
+    if (file === 'package.json') {
+      // add hash of package.json with version set to "0.0.0" to avoid changing hash when only version changed
+      const packageJson = await fs.readJson(filePath);
+      if (packageJson.version) {
+        packageJson.version = '0.0.0';
+      }
+      if (packageJson.engines && packageJson.engines.flipper) {
+        packageJson.engines.flipper = '0.0.0';
+      }
+      hash.write(JSON.stringify(packageJson));
+    } else {
+      // add hash of file content
+      const stream = fs.createReadStream(filePath);
+      try {
+        stream.pipe(hash, {end: false});
+        await new Promise((resolve, reject) => {
+          stream.once('end', resolve);
+          stream.once('error', reject);
+        });
+      } finally {
+        stream.close();
+      }
+    }
+  }
+  hash.end();
+  const checksum = hash.read();
+  if (fullChecksumFilePath) {
+    await fs.writeFile(fullChecksumFilePath, checksum);
+  }
+  return checksum;
+}