build: [gn] add distributable zip target (#14093)

* build: [gn] add distributable zip target

* build: update the CircleCI config

- enable debug and testing builds on Mac
- run Mac release builds nightly
- run test for Mac release builds
- use shared build machines configs

* Add resources dir to zip on non mac platforms.

build/zip.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+import os
+import subprocess
+import sys
+import zipfile
+
+LINUX_BINARIES_TO_STRIP = [
+  'electron',
+  'libffmpeg.so',
+  'libnode.so'
+]
+
+def strip_binaries(target_cpu, dep):
+  for binary in LINUX_BINARIES_TO_STRIP:
+    if dep.endswith(binary):
+     strip_binary(dep, target_cpu)
+
+def strip_binary(binary_path, target_cpu):
+  if target_cpu == 'arm':
+    strip = 'arm-linux-gnueabihf-strip'
+  elif target_cpu == 'arm64':
+    strip = 'aarch64-linux-gnu-strip'
+  elif target_cpu == 'mips64el':
+    strip = 'mips64el-redhat-linux-strip'
+  else:
+    strip = 'strip'
+  execute([strip, binary_path])
+
+def execute(argv):
+  try:
+    output = subprocess.check_output(argv, stderr=subprocess.STDOUT)
+    return output
+  except subprocess.CalledProcessError as e:
+    print e.output
+    raise e
+
+def main(argv):
+  dist_zip, runtime_deps, target_cpu, target_os = argv
+  dist_files = []
+  with open(runtime_deps) as f:
+    for dep in f.readlines():
+      dep = dep.strip()
+      dist_files += [dep]
+  if sys.platform == 'darwin':
+    mac_zip_results = execute(['zip', '-r', '-y', dist_zip] + dist_files)
+  else:
+    with zipfile.ZipFile(dist_zip, 'w', zipfile.ZIP_DEFLATED) as z:
+      for dep in dist_files:
+        if target_os == 'linux':
+            strip_binaries(target_cpu, dep)
+        if os.path.isdir(dep):
+          for root, dirs, files in os.walk(dep):
+            for file in files:
+              z.write(os.path.join(root, file))
+        else:
+          z.write(dep)
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv[1:]))