fix: extract tarball to temp directory on Windows

lib/install.js

@@ -2,6 +2,8 @@
 
 const fs = require('graceful-fs')
 const os = require('os')
+const { backOff } = require('exponential-backoff')
+const rm = require('rimraf')
 const tar = require('tar')
 const path = require('path')
 const util = require('util')
@@ -98,6 +100,40 @@ async function install (fs, gyp, argv) {
     }
   }
 
+  async function copyDirectory (src, dest) {
+    try {
+      await fs.promises.stat(src)
+    } catch {
+      throw new Error(`Missing source directory for copy: ${src}`)
+    }
+    await fs.promises.mkdir(dest, { recursive: true })
+    const entries = await fs.promises.readdir(src, { withFileTypes: true })
+    for (const entry of entries) {
+      if (entry.isDirectory()) {
+        await copyDirectory(path.join(src, entry.name), path.join(dest, entry.name))
+      } else if (entry.isFile()) {
+        // with parallel installs, copying files may cause file errors on
+        // Windows so use an exponential backoff to resolve collisions
+        await backOff(async () => {
+          try {
+            await fs.promises.copyFile(path.join(src, entry.name), path.join(dest, entry.name))
+          } catch (err) {
+            // if ensure, check if file already exists and that's good enough
+            if (gyp.opts.ensure && err.code === 'EBUSY') {
+              try {
+                await fs.promises.stat(path.join(dest, entry.name))
+                return
+              } catch {}
+            }
+            throw err
+          }
+        })
+      } else {
+        throw new Error('Unexpected file directory entry type')
+      }
+    }
+  }
+
   async function go () {
     log.verbose('ensuring nodedir is created', devDir)
 
@@ -118,6 +154,7 @@ async function install (fs, gyp, argv) {
 
     // now download the node tarball
     const tarPath = gyp.opts.tarball
+    let extractErrors = false
     let extractCount = 0
     const contentShasums = {}
     const expectShasums = {}
@@ -136,71 +173,99 @@ async function install (fs, gyp, argv) {
       return isValid
     }
 
+    function onwarn (code, message) {
+      extractErrors = true
+      log.error('error while extracting tarball', code, message)
+    }
+
     // download the tarball and extract!
 
-    if (tarPath) {
-      await tar.extract({
-        file: tarPath,
-        strip: 1,
-        filter: isValid,
-        cwd: devDir
-      })
-    } else {
-      try {
-        const res = await download(gyp, release.tarballUrl)
+    // on Windows there can be file errors from tar if parallel installs
+    // are happening (not uncommon with multiple native modules) so
+    // extract the tarball to a temp directory first and then copy over
+    const tarExtractDir = win ? await fs.promises.mkdtemp(path.join(os.tmpdir(), 'node-gyp-tmp-')) : devDir
 
-        if (res.status !== 200) {
-          throw new Error(`${res.status} response downloading ${release.tarballUrl}`)
-        }
+    try {
+      if (tarPath) {
+        await tar.extract({
+          file: tarPath,
+          strip: 1,
+          filter: isValid,
+          onwarn,
+          cwd: tarExtractDir
+        })
+      } else {
+        try {
+          const res = await download(gyp, release.tarballUrl)
 
-        await streamPipeline(
-          res.body,
-          // content checksum
-          new ShaSum((_, checksum) => {
-            const filename = path.basename(release.tarballUrl).trim()
-            contentShasums[filename] = checksum
-            log.verbose('content checksum', filename, checksum)
-          }),
-          tar.extract({
-            strip: 1,
-            cwd: devDir,
-            filter: isValid
-          })
-        )
-      } catch (err) {
-        // something went wrong downloading the tarball?
-        if (err.code === 'ENOTFOUND') {
-          throw new Error('This is most likely not a problem with node-gyp or the package itself and\n' +
-            'is related to network connectivity. In most cases you are behind a proxy or have bad \n' +
-            'network settings.')
+          if (res.status !== 200) {
+            throw new Error(`${res.status} response downloading ${release.tarballUrl}`)
+          }
+
+          await streamPipeline(
+            res.body,
+            // content checksum
+            new ShaSum((_, checksum) => {
+              const filename = path.basename(release.tarballUrl).trim()
+              contentShasums[filename] = checksum
+              log.verbose('content checksum', filename, checksum)
+            }),
+            tar.extract({
+              strip: 1,
+              cwd: tarExtractDir,
+              filter: isValid,
+              onwarn
+            })
+          )
+        } catch (err) {
+          // something went wrong downloading the tarball?
+          if (err.code === 'ENOTFOUND') {
+            throw new Error('This is most likely not a problem with node-gyp or the package itself and\n' +
+              'is related to network connectivity. In most cases you are behind a proxy or have bad \n' +
+              'network settings.')
+          }
+          throw err
         }
-        throw err
       }
-    }
 
-    // invoked after the tarball has finished being extracted
-    if (extractCount === 0) {
-      throw new Error('There was a fatal problem while downloading/extracting the tarball')
-    }
+      // invoked after the tarball has finished being extracted
+      if (extractErrors || extractCount === 0) {
+        throw new Error('There was a fatal problem while downloading/extracting the tarball')
+      }
+
+      log.verbose('tarball', 'done parsing tarball')
+
+      const installVersionPath = path.resolve(tarExtractDir, 'installVersion')
+      await Promise.all([
+        // need to download node.lib
+        ...(win ? downloadNodeLib() : []),
+        // write the "installVersion" file
+        fs.promises.writeFile(installVersionPath, gyp.package.installVersion + '\n'),
+        // Only download SHASUMS.txt if we downloaded something in need of SHA verification
+        ...(!tarPath || win ? [downloadShasums()] : [])
+      ])
+
+      log.verbose('download contents checksum', JSON.stringify(contentShasums))
+      // check content shasums
+      for (const k in contentShasums) {
+        log.verbose('validating download checksum for ' + k, '(%s == %s)', contentShasums[k], expectShasums[k])
+        if (contentShasums[k] !== expectShasums[k]) {
+          throw new Error(k + ' local checksum ' + contentShasums[k] + ' not match remote ' + expectShasums[k])
+        }
+      }
 
-    log.verbose('tarball', 'done parsing tarball')
-
-    const installVersionPath = path.resolve(devDir, 'installVersion')
-    await Promise.all([
-      // need to download node.lib
-      ...(win ? downloadNodeLib() : []),
-      // write the "installVersion" file
-      fs.promises.writeFile(installVersionPath, gyp.package.installVersion + '\n'),
-      // Only download SHASUMS.txt if we downloaded something in need of SHA verification
-      ...(!tarPath || win ? [downloadShasums()] : [])
-    ])
-
-    log.verbose('download contents checksum', JSON.stringify(contentShasums))
-    // check content shasums
-    for (const k in contentShasums) {
-      log.verbose('validating download checksum for ' + k, '(%s == %s)', contentShasums[k], expectShasums[k])
-      if (contentShasums[k] !== expectShasums[k]) {
-        throw new Error(k + ' local checksum ' + contentShasums[k] + ' not match remote ' + expectShasums[k])
+      // copy over the files from the temp tarball extract directory to devDir
+      if (tarExtractDir !== devDir) {
+        await copyDirectory(tarExtractDir, devDir)
+      }
+    } finally {
+      if (tarExtractDir !== devDir) {
+        try {
+          // try to cleanup temp dir
+          await util.promisify(rm)(tarExtractDir)
+        } catch {
+          log.warn('failed to clean up temp tarball extract directory')
+        }
       }
     }
 
@@ -232,7 +297,7 @@ async function install (fs, gyp, argv) {
       log.verbose('on Windows; need to download `' + release.name + '.lib`...')
       const archs = ['ia32', 'x64', 'arm64']
       return archs.map(async (arch) => {
-        const dir = path.resolve(devDir, arch)
+        const dir = path.resolve(tarExtractDir, arch)
         const targetLibPath = path.resolve(dir, release.name + '.lib')
         const { libUrl, libPath } = release[arch]
         const name = `${arch} ${release.name}.lib`

package.json

@@ -12,7 +12,7 @@
     "gyp"
   ],
   "version": "9.3.1",
-  "installVersion": 9,
+  "installVersion": 10,
   "author": "Nathan Rajlich <nathan@tootallnate.net> (http://tootallnate.net)",
   "repository": {
     "type": "git",
@@ -23,6 +23,7 @@
   "main": "./lib/node-gyp.js",
   "dependencies": {
     "env-paths": "^2.2.0",
+    "exponential-backoff": "^3.1.1",
     "glob": "^7.1.4",
     "graceful-fs": "^4.2.6",
     "make-fetch-happen": "^11.0.3",
@@ -45,6 +46,6 @@
   },
   "scripts": {
     "lint": "standard */*.js test/**/*.js",
-    "test": "npm run lint && tap --timeout=600 test/test-*"
+    "test": "npm run lint && tap --timeout=1200 test/test-*"
   }
 }

test/test-download.js

@@ -188,7 +188,7 @@ test('download headers (actual)', async (t) => {
   await util.promisify(install)(prog, [])
 
   const data = await fs.promises.readFile(path.join(expectedDir, 'installVersion'), 'utf8')
-  t.strictEqual(data, '9\n', 'correct installVersion')
+  t.strictEqual(data, '10\n', 'correct installVersion')
 
   const list = await fs.promises.readdir(path.join(expectedDir, 'include/node'))
   t.ok(list.includes('common.gypi'))

test/test-install.js

@@ -1,8 +1,16 @@
 'use strict'
 
 const { test } = require('tap')
-const { test: { install } } = require('../lib/install')
+const path = require('path')
+const os = require('os')
+const util = require('util')
+const { test: { download, install } } = require('../lib/install')
+const rimraf = require('rimraf')
+const gyp = require('../lib/node-gyp')
 const log = require('npmlog')
+const semver = require('semver')
+const stream = require('stream')
+const streamPipeline = util.promisify(stream.pipeline)
 
 log.level = 'error' // we expect a warning
 
@@ -44,3 +52,79 @@ test('EACCES retry once', async (t) => {
     }
   }
 })
+
+// only run these tests if we are running a version of Node with predictable version path behavior
+const skipParallelInstallTests = process.env.FAST_TEST ||
+  process.release.name !== 'node' ||
+  semver.prerelease(process.version) !== null ||
+  semver.satisfies(process.version, '<10')
+
+async function parallelInstallsTest (t, fs, devDir, prog) {
+  if (skipParallelInstallTests) {
+    return t.skip('Skipping parallel installs test due to test environment configuration')
+  }
+
+  t.tearDown(async () => {
+    await util.promisify(rimraf)(devDir)
+  })
+
+  const expectedDir = path.join(devDir, process.version.replace(/^v/, ''))
+  await util.promisify(rimraf)(expectedDir)
+
+  await Promise.all([
+    install(fs, prog, []),
+    install(fs, prog, []),
+    install(fs, prog, []),
+    install(fs, prog, []),
+    install(fs, prog, []),
+    install(fs, prog, []),
+    install(fs, prog, []),
+    install(fs, prog, []),
+    install(fs, prog, []),
+    install(fs, prog, [])
+  ])
+}
+
+test('parallel installs (ensure=true)', async (t) => {
+  const fs = require('graceful-fs')
+  const devDir = await util.promisify(fs.mkdtemp)(path.join(os.tmpdir(), 'node-gyp-test-'))
+
+  const prog = gyp()
+  prog.parseArgv([])
+  prog.devDir = devDir
+  prog.opts.ensure = true
+  log.level = 'warn'
+
+  await parallelInstallsTest(t, fs, devDir, prog)
+})
+
+test('parallel installs (ensure=false)', async (t) => {
+  const fs = require('graceful-fs')
+  const devDir = await util.promisify(fs.mkdtemp)(path.join(os.tmpdir(), 'node-gyp-test-'))
+
+  const prog = gyp()
+  prog.parseArgv([])
+  prog.devDir = devDir
+  prog.opts.ensure = false
+  log.level = 'warn'
+
+  await parallelInstallsTest(t, fs, devDir, prog)
+})
+
+test('parallel installs (tarball)', async (t) => {
+  const fs = require('graceful-fs')
+  const devDir = await util.promisify(fs.mkdtemp)(path.join(os.tmpdir(), 'node-gyp-test-'))
+
+  const prog = gyp()
+  prog.parseArgv([])
+  prog.devDir = devDir
+  prog.opts.tarball = path.join(devDir, 'node-headers.tar.gz')
+  log.level = 'warn'
+
+  await streamPipeline(
+    (await download(prog, 'https://nodejs.org/dist/v16.0.0/node-v16.0.0.tar.gz')).body,
+    fs.createWriteStream(prog.opts.tarball)
+  )
+
+  await parallelInstallsTest(t, fs, devDir, prog)
+})