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#!/usr/bin/env python3
# Simpler reimplementation of Android's sdkmanager
# Extra features of this implementation are pinning and mirroring
import argparse
import hashlib
import os
import subprocess
import tempfile
import urllib.request
import xml.etree.ElementTree as ET
# These URLs are the Google repositories containing the list of available
# packages and their versions. The list has been generated by listing the URLs
# fetched while executing `tools/bin/sdkmanager --list`
BASE_REPOSITORY = "https://dl.google.com/android/repository/"
REPOSITORIES = [
"sys-img/android/sys-img2-1.xml",
"sys-img/android-wear/sys-img2-1.xml",
"sys-img/android-wear-cn/sys-img2-1.xml",
"sys-img/android-tv/sys-img2-1.xml",
"sys-img/google_apis/sys-img2-1.xml",
"sys-img/google_apis_playstore/sys-img2-1.xml",
"addon2-1.xml",
"glass/addon2-1.xml",
"extras/intel/addon2-1.xml",
"repository2-1.xml",
]
# Available hosts: linux, macosx and windows
HOST_OS = "linux"
# Mirroring options
MIRROR_BUCKET = "rust-lang-ci-mirrors"
MIRROR_BUCKET_REGION = "us-west-1"
MIRROR_BASE_DIR = "rustc/android/"
class Package:
def __init__(self, path, url, sha1, deps=None):
if deps is None:
deps = []
self.path = path.strip()
self.url = url.strip()
self.sha1 = sha1.strip()
self.deps = deps
def download(self, base_url):
_, file = tempfile.mkstemp()
url = base_url + self.url
subprocess.run(["curl", "-o", file, url], check=True)
# Ensure there are no hash mismatches
with open(file, "rb") as f:
sha1 = hashlib.sha1(f.read()).hexdigest()
if sha1 != self.sha1:
raise RuntimeError(
"hash mismatch for package " + self.path + ": " +
sha1 + " vs " + self.sha1 + " (known good)"
)
return file
def __repr__(self):
return "<Package "+self.path+" at "+self.url+" (sha1="+self.sha1+")"
def fetch_url(url):
page = urllib.request.urlopen(url)
return page.read()
def fetch_repository(base, repo_url):
packages = {}
root = ET.fromstring(fetch_url(base + repo_url))
for package in root:
if package.tag != "remotePackage":
continue
path = package.attrib["path"]
for archive in package.find("archives"):
host_os = archive.find("host-os")
if host_os is not None and host_os.text != HOST_OS:
continue
complete = archive.find("complete")
url = os.path.join(os.path.dirname(repo_url), complete.find("url").text)
sha1 = complete.find("checksum").text
deps = []
dependencies = package.find("dependencies")
if dependencies is not None:
for dep in dependencies:
deps.append(dep.attrib["path"])
packages[path] = Package(path, url, sha1, deps)
break
return packages
def fetch_repositories():
packages = {}
for repo in REPOSITORIES:
packages.update(fetch_repository(BASE_REPOSITORY, repo))
return packages
class Lockfile:
def __init__(self, path):
self.path = path
self.packages = {}
if os.path.exists(path):
with open(path) as f:
for line in f:
path, url, sha1 = line.split(" ")
self.packages[path] = Package(path, url, sha1)
def add(self, packages, name, *, update=True):
if name not in packages:
raise NameError("package not found: " + name)
if not update and name in self.packages:
return
self.packages[name] = packages[name]
for dep in packages[name].deps:
self.add(packages, dep, update=False)
def save(self):
packages = list(sorted(self.packages.values(), key=lambda p: p.path))
with open(self.path, "w") as f:
for package in packages:
f.write(package.path + " " + package.url + " " + package.sha1 + "\n")
def cli_add_to_lockfile(args):
lockfile = Lockfile(args.lockfile)
packages = fetch_repositories()
for package in args.packages:
lockfile.add(packages, package)
lockfile.save()
def cli_update_mirror(args):
lockfile = Lockfile(args.lockfile)
for package in lockfile.packages.values():
path = package.download(BASE_REPOSITORY)
subprocess.run([
"aws", "s3", "mv", path,
"s3://" + MIRROR_BUCKET + "/" + MIRROR_BASE_DIR + package.url,
"--profile=" + args.awscli_profile,
], check=True)
def cli_install(args):
lockfile = Lockfile(args.lockfile)
for package in lockfile.packages.values():
# Download the file from the mirror into a temp file
url = "https://" + MIRROR_BUCKET + ".s3-" + MIRROR_BUCKET_REGION + \
".amazonaws.com/" + MIRROR_BASE_DIR
downloaded = package.download(url)
# Extract the file in a temporary directory
extract_dir = tempfile.mkdtemp()
subprocess.run([
"unzip", "-q", downloaded, "-d", extract_dir,
], check=True)
# Figure out the prefix used in the zip
subdirs = [d for d in os.listdir(extract_dir) if not d.startswith(".")]
if len(subdirs) != 1:
raise RuntimeError("extracted directory contains more than one dir")
# Move the extracted files in the proper directory
dest = os.path.join(args.dest, package.path.replace(";", "/"))
os.makedirs("/".join(dest.split("/")[:-1]), exist_ok=True)
os.rename(os.path.join(extract_dir, subdirs[0]), dest)
os.unlink(downloaded)
def cli():
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers()
add_to_lockfile = subparsers.add_parser("add-to-lockfile")
add_to_lockfile.add_argument("lockfile")
add_to_lockfile.add_argument("packages", nargs="+")
add_to_lockfile.set_defaults(func=cli_add_to_lockfile)
update_mirror = subparsers.add_parser("update-mirror")
update_mirror.add_argument("lockfile")
update_mirror.add_argument("--awscli-profile", default="default")
update_mirror.set_defaults(func=cli_update_mirror)
install = subparsers.add_parser("install")
install.add_argument("lockfile")
install.add_argument("dest")
install.set_defaults(func=cli_install)
args = parser.parse_args()
if not hasattr(args, "func"):
print("error: a subcommand is required (see --help)")
exit(1)
args.func(args)
if __name__ == "__main__":
cli()
|
