zulip/scripts/lib/node_cache.py

72 lines
2.7 KiB
Python

from __future__ import print_function
import os
import hashlib
from os.path import dirname, abspath
if False:
from typing import Optional, List, IO, Tuple, Any
from scripts.lib.zulip_tools import subprocess_text_output, run
ZULIP_PATH = dirname(dirname(dirname(abspath(__file__))))
NPM_CACHE_PATH = "/srv/zulip-npm-cache"
if 'TRAVIS' in os.environ:
# In Travis CI, we don't have root access
NPM_CACHE_PATH = "/home/travis/zulip-npm-cache"
def generate_sha1sum_node_modules(npm_args=None):
# type: (Optional[List[str]]) -> str
sha1sum = hashlib.sha1()
sha1sum.update(subprocess_text_output(['cat', 'package.json']).encode('utf8'))
sha1sum.update(subprocess_text_output(['npm', '--version']).encode('utf8'))
sha1sum.update(subprocess_text_output(['node', '--version']).encode('utf8'))
if npm_args is not None:
sha1sum.update(''.join(sorted(npm_args)).encode('utf8'))
return sha1sum.hexdigest()
def setup_node_modules(npm_args=None, stdout=None, stderr=None, copy_modules=False):
# type: (Optional[List[str]], Optional[IO], Optional[IO], Optional[bool]) -> None
sha1sum = generate_sha1sum_node_modules(npm_args)
npm_cache = os.path.join(NPM_CACHE_PATH, sha1sum)
cached_node_modules = os.path.join(npm_cache, 'node_modules')
success_stamp = os.path.join(cached_node_modules, '.success-stamp')
# Check if a cached version already exists
if not os.path.exists(success_stamp):
do_npm_install(npm_cache,
npm_args or [],
success_stamp,
stdout=stdout,
stderr=stderr,
copy_modules=copy_modules)
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)
def do_npm_install(target_path, npm_args, success_stamp, stdout=None, stderr=None,
copy_modules=False):
# type: (str, List[str], str, Optional[IO], Optional[IO], Optional[bool]) -> None
cmds = [
["rm", "-rf", target_path],
['mkdir', '-p', target_path],
['cp', 'package.json', target_path],
]
if copy_modules:
print("Cached version not found! Copying node modules.")
cmds.append(["cp", "-rT", "prod-static/serve/node_modules",
os.path.join(target_path, "node_modules")])
else:
print("Cached version not found! Installing node modules.")
cmds.append(['npm', 'install'] + npm_args + ['--prefix', target_path])
cmds.append(['touch', success_stamp])
for cmd in cmds:
run(cmd, stdout=stdout, stderr=stderr)