build: rewrite tools/ scripts to deno (#8247)

This commit rewrites scripts in "tools/" directory
to use Deno instead of Python. In return it allows 
to remove huge number of Python packages in "third_party/".

1 files changed, 102 insertions, 0 deletions

diff --git a/tools/lint.js b/tools/lint.js
new file mode 100755
index 000000000..18de2aef3
--- /dev/null
+++ b/tools/lint.js
@@ -0,0 +1,102 @@
+#!/usr/bin/env -S deno run --unstable --allow-write --allow-read --allow-run
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+import {
+  buildMode,
+  getPrebuiltToolPath,
+  getSources,
+  ROOT_PATH,
+} from "./util.js";
+
+async function dlint() {
+  const execPath = getPrebuiltToolPath("dlint");
+  console.log("dlint");
+
+  const sourceFiles = await getSources(ROOT_PATH, [
+    "*.js",
+    "*.ts",
+    ":!:cli/tests/swc_syntax_error.ts",
+    ":!:cli/tests/038_checkjs.js",
+    ":!:cli/tests/error_008_checkjs.js",
+    ":!:std/**/testdata/*",
+    ":!:std/**/node_modules/*",
+    ":!:cli/bench/node*.js",
+    ":!:cli/compilers/wasm_wrap.js",
+    ":!:cli/dts/**",
+    ":!:cli/tests/encoding/**",
+    ":!:cli/tests/error_syntax.js",
+    ":!:cli/tests/lint/**",
+    ":!:cli/tests/tsc/**",
+    ":!:cli/tsc/*typescript.js",
+  ]);
+
+  if (!sourceFiles.length) {
+    return;
+  }
+
+  const MAX_COMMAND_LEN = 30000;
+  const preCommand = [execPath, "run"];
+  const chunks = [[]];
+  let cmdLen = preCommand.join(" ").length;
+  for (const f of sourceFiles) {
+    if (cmdLen + f.length > MAX_COMMAND_LEN) {
+      chunks.push([f]);
+      cmdLen = preCommand.join(" ").length;
+    } else {
+      chunks[chunks.length - 1].push(f);
+      cmdLen = preCommand.join(" ").length;
+    }
+  }
+  for (const chunk of chunks) {
+    const p = Deno.run({
+      cmd: [execPath, "run", ...chunk],
+    });
+    const { success } = await p.status();
+    if (!success) {
+      throw new Error("dlint failed");
+    }
+    p.close();
+  }
+}
+
+async function clippy() {
+  console.log("clippy");
+
+  const currentBuildMode = buildMode();
+  const cmd = ["cargo", "clippy", "--all-targets", "--locked"];
+
+  if (currentBuildMode != "debug") {
+    cmd.push("--release");
+  }
+
+  const p = Deno.run({
+    cmd: [...cmd, "--", "-D", "clippy::all"],
+  });
+  const { success } = await p.status();
+  if (!success) {
+    throw new Error("clippy failed");
+  }
+  p.close();
+}
+
+async function main() {
+  await Deno.chdir(ROOT_PATH);
+
+  let didLint = false;
+
+  if (Deno.args.includes("--js")) {
+    await dlint();
+    didLint = true;
+  }
+
+  if (Deno.args.includes("--rs")) {
+    await clippy();
+    didLint = true;
+  }
+
+  if (!didLint) {
+    await dlint();
+    await clippy();
+  }
+}
+
+await main();