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import os
import tarfile
from io import BytesIO
from .utils import build_nm_path
PEERS_DIR = ".peers"
PEERS_INDEX = "index"
def bundle_node_modules(build_root, peers, node_modules_path, bundle_path):
"""
Creates node_modules bundle.
Bundle contains node_modules directory, peers' node_modules directories,
and index file with the list of added peers (\\n delimited).
:param build_root: arcadia build root
:type build_root: str
:param peers: list of peers (arcadia root related)
:type peers: list of str
:param node_modules_path: node_modules path
:type node_modules_path: str
:param bundle_path: tarball path
:type bundle_path: str
"""
with tarfile.open(bundle_path, "w") as tf:
tf.add(node_modules_path, arcname=".")
# Peers' node_modules.
added_peers = []
for p in peers:
peer_nm_path = build_nm_path(os.path.join(build_root, p))
peer_bundled_nm_path = build_nm_path(os.path.join(PEERS_DIR, p))
if not os.path.isdir(peer_nm_path):
continue
tf.add(peer_nm_path, arcname=peer_bundled_nm_path)
added_peers.append(p)
# Peers index.
peers_index = "\n".join(added_peers)
ti = tarfile.TarInfo(name=os.path.join(PEERS_DIR, PEERS_INDEX))
ti.size = len(peers_index)
tf.addfile(ti, BytesIO(peers_index.encode()))
def extract_node_modules(build_root, node_modules_path, bundle_path):
"""
Extracts node_modules bundle.
:param build_root: arcadia build root
:type build_root: str
:param node_modules_path: node_modules path
:type node_modules_path: str
:param bundle_path: tarball path
:type bundle_path: str
"""
with tarfile.open(bundle_path) as tf:
tf.extractall(node_modules_path)
peers = open(os.path.join(node_modules_path, PEERS_DIR, PEERS_INDEX)).read().split("\n")
for p in peers:
if not p:
continue
bundled_nm_path = build_nm_path(os.path.join(node_modules_path, PEERS_DIR, p))
nm_path = build_nm_path(os.path.join(build_root, p))
os.rename(bundled_nm_path, nm_path)
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