feat(esbuild): Script to update esbuild to the latest available version

package.json

@@ -128,6 +128,7 @@
         "bazel:update-deleted-packages": "sed -i.bak \"/--deleted_packages/s#=.*#=$(find {examples,e2e}/*/* \\( -name BUILD -or -name BUILD.bazel \\) | xargs -n 1 dirname | paste -sd, -)#\" .bazelrc && rm .bazelrc.bak",
         "update-codeowners": "./scripts/update_codeowners.sh",
         "update-nodejs-versions": "node ./scripts/update-nodejs-versions.js > internal/node/node_versions.bzl",
+        "update-esbuild-versions": "node ./scripts/update-esbuild-versions.js > packages/esbuild/esbuild_repo.bzl",
         "format": "git-clang-format",
         "format-all": "clang-format --glob='{internal/**/,examples/**/}*.{js,ts}' -i",
         "stardoc": "bazel build --noincompatible_strict_action_env //docs && cp -f dist/bin/docs/*.md ./docs && cp -f dist/bin/docs/docs-out/*.html ./docs && cp -f dist/bin/docs/docs-out/css/*.css ./docs/css",

packages/esbuild/esbuild_repo.bzl

@@ -1,12 +1,12 @@
-"""
+""" Generated code; do not edit
+Update by running yarn update-esbuild-versions
+
 Helper macro for fetching esbuild versions for internal tests and examples in rules_nodejs
 """
 
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
-# IMPORTANT: Keep this file in sync with the documentation in _README.md
-
-_VERSION = "0.11.5"  # reminder: update SHAs below when changing this version
+_VERSION = "0.11.5"
 
 def esbuild_dependencies():
     """Helper to install required dependencies for the esbuild rules"""
@@ -22,7 +22,6 @@ def esbuild_dependencies():
         build_file_content = """exports_files(["bin/esbuild"])""",
         sha256 = "98436890727bdb0d4beddd9c9e07d0aeff0e8dfe0169f85e568eca0dd43f665e",
     )
-
     http_archive(
         name = "esbuild_windows",
         urls = [
@@ -32,7 +31,6 @@ def esbuild_dependencies():
         build_file_content = """exports_files(["esbuild.exe"])""",
         sha256 = "589c8ff97210bd41de106e6317ce88f9e88d2cacfd8178ae1217f2b857ff6c3a",
     )
-
     http_archive(
         name = "esbuild_linux",
         urls = [

scripts/update-esbuild-versions.js

@@ -0,0 +1,117 @@
+const https = require("https");
+const { exec } = require('shelljs');
+const { mkdirSync, rmdirSync, createWriteStream, readFileSync, writeFileSync } = require('fs');
+const { join } = require('path');
+const { tmpdir } = require('os');
+
+const PLATFORMS = {
+  "esbuild_darwin": "esbuild-darwin-64",
+  "esbuild_windows": "esbuild-windows-64",
+  "esbuild_linux": "esbuild-linux-64"
+}
+
+function replaceFileContent(filepath, replacements) {
+  let fileContent = readFileSync(filepath, 'utf8');
+
+  replacements.forEach(replacement => {
+    const match = replacement[0].exec(fileContent);
+
+    if(match.length > 1) {
+      fileContent = fileContent.replace(match[1], replacement[1]);
+    }
+  });
+
+  writeFileSync(filepath, fileContent);
+}
+
+function fetch(url) {
+  return new Promise((resolve, reject) => {
+    https.get(url, (res) => {
+      if (res.statusCode !== 200) {
+        console.error(res);
+        return reject();
+      }
+
+      let body = '';
+      res.on("data", (chunk) => body += chunk);
+      res.on("end", () => resolve(JSON.parse(String(body))));
+    });
+  });
+}
+
+function downloadFile(url, dest) {
+  return new Promise((resolve, reject) => {
+    const file = createWriteStream(dest);
+
+    const request = https.get(url, (response) => {
+        response.pipe(file);
+    });
+
+    file.on('finish', () => {
+      file.end();
+      resolve();
+    });
+  });
+};
+
+async function main() {
+  const content = [];
+  const fileReplacements = [];
+
+  content.push('""" Generated code; do not edit\nUpdate by running yarn update-esbuild-versions\n\nHelper macro for fetching esbuild versions for internal tests and examples in rules_nodejs\n"""\n');
+  content.push('load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")\n');
+
+  if(process.argv.length !== 2 && process.argv.length !== 3) {
+    console.log("Expected number of arguments is 0 or 1");
+    process.exit(1);
+  }
+
+  let version;
+  if(process.argv.length === 3) {
+    version = process.argv[2];
+  } else {
+    version = (await fetch('https://registry.npmjs.org/esbuild/latest')).version;
+  }
+
+  content.push(`_VERSION = "${version}"\n`);
+  fileReplacements.push([/_ESBUILD_VERSION = "(.+?)"/, version]);
+
+  content.push('def esbuild_dependencies():');
+  content.push('    """Helper to install required dependencies for the esbuild rules"""\n');
+  content.push('    version = _VERSION\n');
+
+  const tmpDir = tmpdir();
+  mkdirSync(tmpDir, {recursive: true});
+
+  for(const platform of Object.keys(PLATFORMS)) {
+    const downloadUrl = `https://registry.npmjs.org/${PLATFORMS[platform]}/-/${PLATFORMS[platform]}-${version}.tgz`;
+
+    const downloadPath = join(tmpDir, PLATFORMS[platform]);
+    await downloadFile(downloadUrl, downloadPath);
+    const shasumOutput = exec(`shasum -a 256 ${downloadPath}`, { silent: true }).stdout;
+    const shasum = shasumOutput.split(' ')[0];
+
+    fileReplacements.push([new RegExp(`"${platform}",.+?sha256 = "(.+?)"`, 's'), shasum]);
+
+    content.push('    http_archive(');
+    content.push(`        name = "${platform}",`);
+    content.push('        urls = [');
+    content.push(`            "https://registry.npmjs.org/${PLATFORMS[platform]}/-/${PLATFORMS[platform]}-%s.tgz" % version,`);
+    content.push('        ],');
+    content.push('        strip_prefix = "package",');
+    content.push(`        build_file_content = """exports_files(["${platform === 'esbuild_windows' ? 'esbuild.exe' : 'bin/esbuild'}"])""",`);
+    content.push(`        sha256 = "${shasum}",`);
+    content.push('    )');
+  }
+
+
+  rmdirSync(tmpDir, {recursive: true});
+
+  console.log(content.join('\n'));
+
+  // replace shasums in some manually edited files
+  replaceFileContent('examples/esbuild/WORKSPACE', fileReplacements);
+  replaceFileContent('packages/esbuild/_README.md', fileReplacements);
+}
+
+main();