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node_cache: Avoid shelling out for rm, ln, mkdir, cp, cd, touch.

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Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
This commit is contained in:
Anders Kaseorg
2019-08-12 21:56:46 -07:00
committed by Tim Abbott
parent 88793e80ea
commit fa913b7f5d
2 changed files with 16 additions and 27 deletions
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35
scripts/lib/node_cache.py
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@@ -1,6 +1,7 @@
import os
import hashlib
import json
import shutil
from typing import Optional, List, IO, Any
from scripts.lib.zulip_tools import subprocess_text_output, run
@@ -65,31 +66,27 @@ def setup_node_modules(production=DEFAULT_PRODUCTION, stdout=None, stderr=None,
stderr=stderr)
print("Using cached node modules from %s" % (cached_node_modules,))
cmds = [
['rm', '-rf', 'node_modules'],
["ln", "-nsf", cached_node_modules, 'node_modules'],
]
for cmd in cmds:
run(cmd, stdout=stdout, stderr=stderr)
if os.path.islink('node_modules'):
os.remove('node_modules')
elif os.path.isdir('node_modules'):
shutil.rmtree('node_modules')
os.symlink(cached_node_modules, 'node_modules')
def do_yarn_install(target_path, yarn_args, success_stamp, stdout=None, stderr=None):
# type: (str, List[str], str, Optional[IO[Any]], Optional[IO[Any]]) -> None
cmds = [
['mkdir', '-p', target_path],
['cp', 'package.json', "yarn.lock", target_path],
]
os.makedirs(target_path, exist_ok=True)
shutil.copy('package.json', target_path)
shutil.copy("yarn.lock", target_path)
cached_node_modules = os.path.join(target_path, 'node_modules')
print("Cached version not found! Installing node modules.")
# Copy the existing node_modules to speed up install
if os.path.exists("node_modules"):
cmds.append(["cp", "-R", "node_modules/", cached_node_modules])
cd_exec = os.path.join(ZULIP_PATH, "scripts/lib/cd_exec")
shutil.copytree("node_modules/", cached_node_modules)
if os.environ.get('CUSTOM_CA_CERTIFICATES'):
cmds.append([YARN_BIN, "config", "set", "cafile", os.environ['CUSTOM_CA_CERTIFICATES']])
cmds.append([cd_exec, target_path, YARN_BIN, "install", "--non-interactive", "--frozen-lockfile"] +
yarn_args)
cmds.append(['touch', success_stamp])
for cmd in cmds:
run(cmd, stdout=stdout, stderr=stderr)
run([YARN_BIN, "config", "set", "cafile", os.environ['CUSTOM_CA_CERTIFICATES']],
stdout=stdout, stderr=stderr)
run([YARN_BIN, "install", "--non-interactive", "--frozen-lockfile"] + yarn_args,
cwd=target_path, stdout=stdout, stderr=stderr)
with open(success_stamp, 'w'):
pass