#!/usr/bin/env python # Copyright 2018-2019 the Deno authors. All rights reserved. MIT license. # This script contains helper functions to work with the third_party subrepo. import os import site import sys from os import path from util import add_env_path, find_exts, make_env, rmtree, root_path, run from tempfile import mkdtemp # Helper function that returns the full path to a subpath of the repo root. def root(*subpath_parts): return path.normpath(path.join(root_path, *subpath_parts)) # Helper function that returns the full path to a file/dir in third_party. def tp(*subpath_parts): return root("third_party", *subpath_parts) third_party_path = tp() depot_tools_path = tp("depot_tools") rust_crates_path = tp("rust_crates") python_packages_path = tp("python_packages") gn_path = tp(depot_tools_path, "gn") clang_format_path = tp(depot_tools_path, "clang-format") ninja_path = tp(depot_tools_path, "ninja") python_site_env = None # Creates/modifies an environment so python can find packages that are bundled # in the 'third_party' directory. def python_env(env=None, merge_env=None): if merge_env is None: merge_env = {} global python_site_env # Use site.addsitedir() to determine which search paths would be considered # if 'third_party/python_packages' was a site-packages directory. # PATH is also updated, so windows can find the DLLs that ship with pywin32. if python_site_env is None: python_site_env = {} temp = os.environ["PATH"], sys.path os.environ["PATH"], sys.path = "", [] site.addsitedir(python_packages_path) # Modifies PATH and sys.path. python_site_env = {"PATH": os.environ["PATH"], "PYTHONPATH": sys.path} os.environ["PATH"], sys.path = temp # Make a new environment object. env = make_env(env=env, merge_env=merge_env) # Apply PATH and PYTHONPATH from the site-packages environment. add_env_path(python_site_env["PATH"], env=env, key="PATH") add_env_path(python_site_env["PYTHONPATH"], env=env, key="PYTHONPATH") return env # This function creates or modifies an environment so that it matches the # expectations of various google tools (gn, gclient, etc). def google_env(env=None, merge_env=None, depot_tools_path_=depot_tools_path): if merge_env is None: merge_env = {} # Google tools need the python env too. env = python_env(env=env, merge_env=merge_env) # Depot_tools to be in the PATH, before Python. add_env_path(depot_tools_path_, env=env, prepend=True) if os.name == "nt": # Windows-only enviroment tweaks. # We're not using Google's internal infrastructure. if os.name == "nt" and not "DEPOT_TOOLS_WIN_TOOLCHAIN" in env: env["DEPOT_TOOLS_WIN_TOOLCHAIN"] = "0" # The 'setup_toolchain.py' script does a good job finding the Windows # SDK. Unfortunately, if any of the environment variables below are set # (as vcvarsall.bat typically would), setup_toolchain absorbs them too, # adding multiple identical -imsvc items to CFLAGS. # This small variation has no effect on compiler output, but it # makes ninja rebuild everything, and causes sccache cache misses. # TODO(piscisaureus): fix this upstream. env["INCLUDE"] = "" env["LIB"] = "" env["LIBPATH"] = "" return env # Run Yarn to install JavaScript dependencies. def run_yarn(): run(["yarn", "install"], cwd=third_party_path) # Run Cargo to install Rust dependencies. def run_cargo(): # Deletes the cargo index lockfile; it appears that cargo itself doesn't do # it. If the lockfile ends up in the git repo, it'll make cargo hang for # everyone else who tries to run sync_third_party. def delete_lockfile(): lockfiles = find_exts([path.join(rust_crates_path, "registry/index")], ['.cargo-index-lock']) for lockfile in lockfiles: os.remove(lockfile) # Delete the index lockfile in case someone accidentally checked it in. delete_lockfile() run(["cargo", "fetch", "--manifest-path=" + root("Cargo.toml")], cwd=third_party_path, merge_env={'CARGO_HOME': rust_crates_path}) # Delete the lockfile again so it doesn't end up in the git repo. delete_lockfile() # Install python packages with pip. def run_pip(): # Install an recent version of pip into a temporary directory. The version # that is bundled with python is too old to support the next step. temp_python_home = mkdtemp() pip_env = {"PYTHONUSERBASE": temp_python_home} run([sys.executable, "-m", "pip", "install", "--upgrade", "--user", "pip"], cwd=third_party_path, merge_env=pip_env) # Install pywin32. run([ sys.executable, "-m", "pip", "install", "--upgrade", "--target", python_packages_path, "--platform=win_amd64", "--only-binary=:all:", "pypiwin32" ], cwd=third_party_path, merge_env=pip_env) # Get yapf. run([ sys.executable, "-m", "pip", "install", "--upgrade", "--target", python_packages_path, "yapf" ], cwd=third_party_path, merge_env=pip_env) # Remove the temporary pip installation. rmtree(temp_python_home) # Run gclient to install other dependencies. def run_gclient_sync(): # Depot_tools will normally try to self-update, which will fail because # it's not checked out from it's own git repository; gclient will then try # to fix things up and not succeed, and and we'll end up with a huge mess. # To work around this, we rename the `depot_tools` directory to # `{root_path}/depot_tools_temp` first, and we set DEPOT_TOOLS_UPDATE=0 in # the environment so depot_tools doesn't attempt to self-update. # Since depot_tools is listed in .gclient_entries, gclient will install a # fresh copy in `third_party/depot_tools`. # If it all works out, we remove the depot_tools_temp directory afterwards. depot_tools_temp_path = root("depot_tools_temp") # Rename depot_tools to depot_tools_temp. try: os.rename(depot_tools_path, depot_tools_temp_path) except OSError: # If renaming failed, and the depot_tools_temp directory already exists, # assume that it's still there because a prior run_gclient_sync() call # failed half-way, before we got the chance to remove the temp dir. # We'll use whatever is in the temp dir that was already there. # If not, the user can recover by removing the temp directory manually. if path.isdir(depot_tools_temp_path): pass else: raise args = [ "gclient", "sync", "--reset", "--shallow", "--no-history", "--nohooks" ] envs = { 'DEPOT_TOOLS_UPDATE': "0", 'GCLIENT_FILE': root("gclient_config.py") } env = google_env(depot_tools_path_=depot_tools_temp_path, merge_env=envs) run(args, cwd=third_party_path, env=env) # Delete the depot_tools_temp directory, but not before verifying that # gclient did indeed install a fresh copy. # Also check that `{depot_tools_temp_path}/gclient.py` exists, so a typo in # this script won't accidentally blow out someone's home dir. if (path.isdir(path.join(depot_tools_path, ".git")) and path.isfile(path.join(depot_tools_path, "gclient.py")) and path.isfile(path.join(depot_tools_temp_path, "gclient.py"))): rmtree(depot_tools_temp_path) # Download the given item from Google storage. def download_from_google_storage(item, bucket): if sys.platform == 'win32': sha1_file = "v8/buildtools/win/%s.exe.sha1" % item elif sys.platform == 'darwin': sha1_file = "v8/buildtools/mac/%s.sha1" % item elif sys.platform.startswith('linux'): sha1_file = "v8/buildtools/linux64/%s.sha1" % item run([ "python", tp('depot_tools/download_from_google_storage.py'), '--platform=' + sys.platform, '--no_auth', '--bucket=%s' % bucket, '--sha1_file', tp(sha1_file), ], env=google_env()) # Download gn from Google storage. def download_gn(): download_from_google_storage('gn', 'chromium-gn') # Download clang-format from Google storage. def download_clang_format(): download_from_google_storage('clang-format', 'chromium-clang-format') # Download clang by calling the clang update script. def download_clang(): run(['python', tp('v8/tools/clang/scripts/update.py')], env=google_env()) def maybe_download_sysroot(): if sys.platform.startswith('linux'): run([ 'python', os.path.join(root_path, 'build/linux/sysroot_scripts/install-sysroot.py'), '--arch=amd64' ], env=google_env())