Add logic to bundle native mksnapshot for arm/arm64

.gitignore

@@ -40,6 +40,8 @@
 /vendor/llvm/
 /vendor/npm/
 /vendor/python_26/
+/vendor/native_mksnapshot
+/vendor/LICENSES.chromium.html
 node_modules/
 SHASUMS256.txt
 **/package-lock.json

script/bootstrap.py

@@ -40,6 +40,9 @@ def main():
   if args.target_arch == 'mips64el':
     download_mips64el_toolchain()
 
+  if args.target_arch.startswith('arm'):
+    download_native_mksnapshot(args.target_arch)
+
   # Redirect to use local libchromiumcontent build.
   if args.build_release_libcc or args.build_debug_libcc:
     build_libchromiumcontent(args.verbose, args.target_arch,
@@ -216,6 +219,15 @@ def download_mips64el_toolchain():
     subprocess.check_call(['tar', '-xf', tar_name, '-C', VENDOR_DIR])
     os.remove(tar_name)
 
+def download_native_mksnapshot(arch):
+  if not os.path.exists(os.path.join(VENDOR_DIR,
+                                     'native_mksnapshot')):
+    tar_name = 'native-mksnapshot.tar.bz2'
+    url = '{0}/linux/{1}/{2}/{3}'.format(BASE_URL, arch,
+           get_libchromiumcontent_commit(), tar_name)
+    download(tar_name, url, os.path.join(SOURCE_ROOT, tar_name))
+    subprocess.call(['tar', '-jxf', tar_name, '-C', VENDOR_DIR])
+    os.remove(tar_name)
 
 def create_chrome_version_h():
   version_file = os.path.join(VENDOR_DIR, 'libchromiumcontent', 'VERSION')

script/create-dist.py

@@ -24,6 +24,7 @@ DIST_DIR = os.path.join(SOURCE_ROOT, 'dist')
 OUT_DIR = os.path.join(SOURCE_ROOT, 'out', 'R')
 CHROMIUM_DIR = os.path.join(SOURCE_ROOT, 'vendor', 'download',
                             'libchromiumcontent', 'static_library')
+NATIVE_MKSNAPSHOT_DIR = os.path.join(SOURCE_ROOT, 'vendor', 'native_mksnapshot')
 
 PROJECT_NAME = electron_gyp()['project_name%']
 PRODUCT_NAME = electron_gyp()['product_name%']
@@ -141,7 +142,6 @@ def copy_chrome_binary(binary):
   shutil.copyfile(src, dest)
   os.chmod(dest, os.stat(dest).st_mode | stat.S_IEXEC)
 
-
 def copy_vcruntime_binaries():
   with _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE,
                        r"SOFTWARE\Microsoft\VisualStudio\14.0\Setup\VC", 0,
@@ -260,17 +260,39 @@ def create_dist_zip():
 
 
 def create_chrome_binary_zip(binary, version):
-  dist_name = get_zip_name(binary, version)
+  file_suffix = ''
+  create_native_mksnapshot = False
+  if binary == 'mksnapshot':
+    arch = get_target_arch()
+    if arch.startswith('arm'):
+      # if the arch is arm/arm64 the mksnapshot executable is an x64 binary,
+      # so name it as such.
+      file_suffix = 'x64'
+      create_native_mksnapshot = True
+  dist_name = get_zip_name(binary, version, file_suffix)
   zip_file = os.path.join(SOURCE_ROOT, 'dist', dist_name)
 
+  files = ['LICENSE', 'LICENSES.chromium.html']
+  if PLATFORM == 'win32':
+    files += [binary + '.exe']
+  else:
+    files += [binary]
+
   with scoped_cwd(DIST_DIR):
-    files = ['LICENSE', 'LICENSES.chromium.html']
-    if PLATFORM == 'win32':
-      files += [binary + '.exe']
-    else:
-      files += [binary]
     make_zip(zip_file, files, [])
 
+  if create_native_mksnapshot == True:
+    # Create a zip with the native version of the mksnapshot binary.
+    src = os.path.join(NATIVE_MKSNAPSHOT_DIR, binary)
+    dest = os.path.join(DIST_DIR, binary)
+    # Copy file and keep the executable bit.
+    shutil.copyfile(src, dest)
+    os.chmod(dest, os.stat(dest).st_mode | stat.S_IEXEC)
+
+    dist_name = get_zip_name(binary, version)
+    zip_file = os.path.join(SOURCE_ROOT, 'dist', dist_name)
+    with scoped_cwd(DIST_DIR):
+      make_zip(zip_file, files, [])
 
 def create_ffmpeg_zip():
   dist_name = get_zip_name('ffmpeg', ELECTRON_VERSION)

script/upload.py

@@ -85,12 +85,16 @@ def main():
   upload_electron(github, release, os.path.join(DIST_DIR, ffmpeg),
                   args.upload_to_s3)
 
-  # Upload chromedriver and mksnapshot for minor version update.
-  if parse_version(args.version)[2] == '0':
-    chromedriver = get_zip_name('chromedriver', ELECTRON_VERSION)
-    upload_electron(github, release, os.path.join(DIST_DIR, chromedriver),
-                    args.upload_to_s3)
-    mksnapshot = get_zip_name('mksnapshot', ELECTRON_VERSION)
+  chromedriver = get_zip_name('chromedriver', ELECTRON_VERSION)
+  upload_electron(github, release, os.path.join(DIST_DIR, chromedriver),
+                  args.upload_to_s3)
+  mksnapshot = get_zip_name('mksnapshot', ELECTRON_VERSION)
+  upload_electron(github, release, os.path.join(DIST_DIR, mksnapshot),
+                args.upload_to_s3)
+
+  if get_target_arch().startswith('arm'):
+    # Upload the x64 binary for arm/arm64 mksnapshot
+    mksnapshot = get_zip_name('mksnapshot', ELECTRON_VERSION, 'x64')
     upload_electron(github, release, os.path.join(DIST_DIR, mksnapshot),
                     args.upload_to_s3)