git-node v8: remove eu-strip during major upgrades (#243)

* git-node v8: remove eu-strip during major upgrades

Ref: nodejs/node#20304

lib/update-v8/applyNodeChanges.js

@@ -0,0 +1,46 @@
+'use strict';
+
+const path = require('path');
+
+const fs = require('fs-extra');
+const Listr = require('listr');
+
+const {
+  getNodeV8Version,
+  filterForVersion,
+  replaceGitignore
+} = require('./util');
+
+const nodeChanges = [
+  {
+    since: 66,
+    task: removeEuStrip
+  }
+];
+
+function applyNodeChanges() {
+  return {
+    title: 'Apply Node-specific changes',
+    task: (ctx) => {
+      const v8Version = getNodeV8Version(ctx.nodeDir);
+      const list = filterForVersion(nodeChanges, v8Version);
+      return new Listr(list.map((change) => change.task()));
+    }
+  };
+}
+
+// Ref: https://github.com/nodejs/node/pull/20304
+function removeEuStrip() {
+  return {
+    title: 'Remove eu-strip binary',
+    task: async(ctx) => {
+      await replaceGitignore(ctx.nodeDir, {
+        match: '!/third_party/eu-strip\n',
+        replace: ''
+      });
+      await fs.remove(path.join(ctx.nodeDir, 'deps/v8/third_party/eu-strip'));
+    }
+  };
+}
+
+module.exports = applyNodeChanges;

lib/update-v8/majorUpdate.js

@@ -8,13 +8,19 @@ const Listr = require('listr');
 const mkdirp = require('mkdirp');
 
 const common = require('./common');
-const util = require('./util');
+const {
+  getNodeV8Version,
+  filterForVersion,
+  addToGitignore,
+  replaceGitignore
+} = require('./util');
 const {
   moveGypfilesOut,
   moveGypfilesIn,
   updateGypfiles
 } = require('./gypfiles');
-const { chromiumGit } = require('./constants');
+const applyNodeChanges = require('./applyNodeChanges');
+const { chromiumGit, v8Deps } = require('./constants');
 
 module.exports = function() {
   return {
@@ -28,6 +34,7 @@ module.exports = function() {
         cloneLocalV8(),
         removeDepsV8Git(),
         updateV8Deps(),
+        applyNodeChanges(),
         moveGypfilesIn(),
         updateGypfiles()
       ]);
@@ -102,8 +109,8 @@ function updateV8Deps() {
   return {
     title: 'Update V8 DEPS',
     task: async(ctx) => {
-      const newV8Version = util.getNodeV8Version(ctx.nodeDir);
-      const deps = util.getV8Deps(newV8Version);
+      const newV8Version = getNodeV8Version(ctx.nodeDir);
+      const deps = filterForVersion(v8Deps, newV8Version);
       if (deps.length === 0) return;
       /* eslint-disable no-await-in-loop */
       for (const dep of deps) {
@@ -123,18 +130,6 @@ function updateV8Deps() {
   };
 }
 
-async function addToGitignore(nodeDir, value) {
-  const gitignorePath = path.join(nodeDir, 'deps/v8/.gitignore');
-  await fs.appendFile(gitignorePath, `${value}\n`);
-}
-
-async function replaceGitignore(nodeDir, options) {
-  const gitignorePath = path.join(nodeDir, 'deps/v8/.gitignore');
-  let gitignore = await fs.readFile(gitignorePath, 'utf8');
-  gitignore = gitignore.replace(options.match, options.replace);
-  await fs.writeFile(gitignorePath, gitignore);
-}
-
 async function readDeps(nodeDir, depName) {
   const depsStr = await fs.readFile(path.join(nodeDir, 'deps/v8/DEPS'), 'utf8');
   const start = depsStr.indexOf('deps = {');

lib/update-v8/util.js

@@ -1,10 +1,9 @@
 'use strict';
 
-const fs = require('fs');
+const fs = require('fs-extra');
+const path = require('path');
 
-const constants = require('./constants');
-
-exports.getNodeV8Version = function getNodeV8Version(cwd) {
+function getNodeV8Version(cwd) {
   try {
     const v8VersionH = fs.readFileSync(
       `${cwd}/deps/v8/include/v8-version.h`,
@@ -21,11 +20,30 @@ exports.getNodeV8Version = function getNodeV8Version(cwd) {
   }
 };
 
-exports.getV8Deps = function getV8Deps(version) {
+function filterForVersion(list, version) {
   const major = version[0];
   const minor = version[1];
   const number = major * 10 + minor;
-  return constants.v8Deps.filter(
+  return list.filter(
     (dep) => dep.since <= number && (dep.until || Infinity) >= number
   );
+}
+
+async function addToGitignore(nodeDir, value) {
+  const gitignorePath = path.join(nodeDir, 'deps/v8/.gitignore');
+  await fs.appendFile(gitignorePath, `${value}\n`);
+}
+
+async function replaceGitignore(nodeDir, options) {
+  const gitignorePath = path.join(nodeDir, 'deps/v8/.gitignore');
+  let gitignore = await fs.readFile(gitignorePath, 'utf8');
+  gitignore = gitignore.replace(options.match, options.replace);
+  await fs.writeFile(gitignorePath, gitignore);
+}
+
+module.exports = {
+  getNodeV8Version,
+  filterForVersion,
+  addToGitignore,
+  replaceGitignore
 };