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Python wheels on Linux require statically linked SSL libraries. We were previously relying on the native-tls-vendored feature in reqwest, but that does not work with Bazel, as openssl-src makes assumptions that break when sandboxed. The static libs distributed by distros like Ubuntu fail to link, and while we could potentially build OpenSSL ourselves, we'd then need to keep it up to date. On Windows and Mac however, native-tls is preferable to ring, as it allows us to get free updates from the OS, and results in a smaller library. Rust currently only supports platform-specific features in nightly, and cargo-raze does not have support for them, so we currently need to override the generated build file with a hand-crafted one that specifies the relative features/deps for each platform. update.py has been updated to automatically keep the version numbers in this file up to date, so it should hopefully not prove too hard to maintain going forward.
156 lines
4.4 KiB
Python
156 lines
4.4 KiB
Python
#!/usr/bin/env python3
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#
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# See README.md
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EXTRA_DEPS = [
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'pyo3 = { git = "https://github.com/PyO3/pyo3.git", rev = "3b3ba4e3abd57bc3b8f86444b3f61e6e2f4c5fc1", features = ["extension-module", "abi3"] }'
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]
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# If you get a message like the following during a build:
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#
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# DEBUG: Rule 'raze__reqwest__0_10_8' indicated that a canonical reproducible
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# form can be obtained by modifying arguments shallow_since = "1604362745 +1000"
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# ...then the commit and shallow_since argument should be added below, as this
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# will remove the debug warning, and speed up the git clone.
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COMMITS_SHALLOW_SINCE = {
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# reqwest
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"eab12efe22f370f386d99c7d90e7a964e85dd071": "1604362745 +1000",
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# hyper-timeout
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"f9ef687120d88744c1da50a222e19208b4553503": "1604362633 +1000",
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# tokio-io-timeout
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"96e1358555c49905de89170f2b1102a7d8b6c4c2": "1598411535 +1000",
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# prost
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"4ded4a98ef339da0b7babd4efee3fbe8adaf746b": "1598739849 -0700",
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# pyo3
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"3b3ba4e3abd57bc3b8f86444b3f61e6e2f4c5fc1": "1603809036 +0900",
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}
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import os
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import sys
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import subprocess
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import shutil
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import re
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import glob
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if os.getcwd() != os.path.abspath(os.path.dirname(__file__)):
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print("Run this from the cargo/ folder")
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sys.exit(1)
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def write_cargo_toml():
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with open("raze.toml") as file:
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header = file.read()
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deps = []
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with open("../rslib/Cargo.toml") as file:
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started = False
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for line in file.readlines():
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if line.startswith("# BEGIN DEPENDENCIES"):
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started = True
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continue
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if not started:
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continue
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deps.append(line.strip())
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deps.extend(EXTRA_DEPS)
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# write out Cargo.toml
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with open("Cargo.toml", "w") as file:
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file.write(header)
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file.write("\n".join(deps))
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def remove_cargo_toml():
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os.remove("Cargo.toml")
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def update_cargo_lock():
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# update Cargo.lock
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subprocess.run(["cargo", "update"], check=True)
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def run_cargo_raze():
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# generate cargo-raze files
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if os.path.exists("remote"):
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shutil.rmtree("remote")
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subprocess.run(["cargo-raze"], check=True)
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def write_licenses():
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# dump licenses
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result = subprocess.check_output(["cargo", "license", "-j"])
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with open("licenses.json", "wb") as file:
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file.write(result)
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# export license file
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with open("BUILD.bazel", "a", encoding="utf8") as file:
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file.write(
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"""
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exports_files(["licenses.json"])
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"""
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)
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def update_crates_bzl():
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output_lines = []
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commit_re = re.compile('\s+commit = "([0-9a-f]+)",')
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reqwest_build_prefix = re.compile(r"/remote:BUILD.reqwest-\d+\.\d+\.\d+")
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with open("crates.bzl") as file:
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for line in file.readlines():
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# update shallow-since references for git crates
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if match := commit_re.match(line):
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commit = match.group(1)
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if commit in line:
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if since := COMMITS_SHALLOW_SINCE.get(commit):
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output_lines.append(f' shallow_since = "{since}",\n')
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else:
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print(f"{commit} not in COMMITS_SHALLOW_SINCE")
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# use our custom reqwest build file
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if match := reqwest_build_prefix.search(line):
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line = line.replace(match.group(0), ":BUILD.reqwest")
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output_lines.append(line)
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with open("crates.bzl", "w") as file:
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for line in output_lines:
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file.write(line)
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def generated_reqwest_build_file():
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return glob.glob("remote/*reqwest-*")[0]
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def update_reqwest_deps():
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"Update version numbers in our custom build file."
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dep_with_version = re.compile(r"@raze__(.+?)__([\d_]+)//")
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version_map = {}
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with open(generated_reqwest_build_file(), encoding="utf8") as file:
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for line in file.readlines():
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if match := dep_with_version.search(line):
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version_map[match.group(1)] = match.group(2)
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with open("BUILD.reqwest.bazel", "r+", encoding="utf8") as file:
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def repl(m):
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name = m.group(1)
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current_version = m.group(2)
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new_version = version_map.get(name)
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return m.group(0).replace(current_version, new_version)
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data = dep_with_version.sub(repl, file.read())
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file.seek(0)
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file.write(data)
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write_cargo_toml()
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update_cargo_lock()
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run_cargo_raze()
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write_licenses()
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update_crates_bzl()
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update_reqwest_deps()
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remove_cargo_toml()
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