blob: 3669ca5ce3524287cfd10274f0adbca7eb7ccda3 [file] [log] [blame]
From e9002bef44df84370649b995b8c9e6a89d4d37e9 Mon Sep 17 00:00:00 2001
From: Philipp Schrader <philipp.schrader@gmail.com>
Date: Sat, 24 Sep 2022 15:56:33 -0700
Subject: [PATCH] Allow user to patch wheels
There are two parts here. First we need to let the user inject patches
to specific wheels. We do that via a new JSON file that can be
specified in the WORKSPACE via the `patch_spec` attribute.
The second part is to allow the user to inject `deps` in the specific
wheels. This is important because the patches for the wheels may want
to pull in other libraries that the wheel normally does not depend on.
The `deps` injection is done via a new attribute on the annotation.
I submitted a PR to rules_python for the `deps` injection part here:
https://github.com/bazelbuild/rules_python/pull/853
However, the maintainers would like to take a different approach for
which I will write a proposal. The approach here will not be what's
eventually upstreamed.
---
.../pip_install/extract_wheels/annotation.py | 5 +++
python/pip_install/extract_wheels/bazel.py | 13 +++++++-
.../extract_wheels/extract_single_wheel.py | 29 +++++++++++++++++
.../parse_requirements_to_bzl.py | 25 ++++++++++++++-
python/pip_install/pip_repository.bzl | 31 ++++++++++++++++++-
5 files changed, 100 insertions(+), 3 deletions(-)
diff --git a/python/pip_install/extract_wheels/annotation.py b/python/pip_install/extract_wheels/annotation.py
index 48aaa802..fe8b4dc5 100644
--- a/python/pip_install/extract_wheels/annotation.py
+++ b/python/pip_install/extract_wheels/annotation.py
@@ -19,6 +19,7 @@ class Annotation(OrderedDict):
"data",
"data_exclude_glob",
"srcs_exclude_glob",
+ "deps",
):
if field not in content:
missing.append(field)
@@ -61,6 +62,10 @@ class Annotation(OrderedDict):
def srcs_exclude_glob(self) -> List[str]:
return self["srcs_exclude_glob"]
+ @property
+ def deps(self) -> List[str]:
+ return self["deps"]
+
class AnnotationsMap:
"""A mapping of python package names to [Annotation]"""
diff --git a/python/pip_install/extract_wheels/bazel.py b/python/pip_install/extract_wheels/bazel.py
index 8f442c93..f4b7f26a 100644
--- a/python/pip_install/extract_wheels/bazel.py
+++ b/python/pip_install/extract_wheels/bazel.py
@@ -2,6 +2,7 @@
import json
import os
import shutil
+import subprocess
import textwrap
from pathlib import Path
from typing import Dict, Iterable, List, Optional, Set
@@ -335,6 +336,9 @@ def extract_wheel(
incremental: bool = False,
incremental_dir: Path = Path("."),
annotation: Optional[annotation.Annotation] = None,
+ patches: Optional[List[os.PathLike]] = None,
+ patch_args: Optional[List[os.PathLike]] = None,
+ patch_tool: Optional[str] = "patch",
) -> Optional[str]:
"""Extracts wheel into given directory and creates py_library and filegroup targets.
@@ -415,6 +419,7 @@ def extract_wheel(
data = []
data_exclude = pip_data_exclude
srcs_exclude = []
+ deps = []
if annotation:
for src, dest in annotation.copy_files.items():
data.append(dest)
@@ -427,6 +432,7 @@ def extract_wheel(
data.extend(annotation.data)
data_exclude.extend(annotation.data_exclude_glob)
srcs_exclude.extend(annotation.srcs_exclude_glob)
+ deps.extend('"%s"' % dep for dep in annotation.deps)
if annotation.additive_build_content:
additional_content.append(annotation.additive_build_content)
@@ -434,7 +440,7 @@ def extract_wheel(
name=PY_LIBRARY_LABEL
if incremental
else sanitise_name(whl.name, repo_prefix),
- dependencies=sanitised_dependencies,
+ dependencies=sanitised_dependencies + deps,
whl_file_deps=sanitised_wheel_file_dependencies,
data_exclude=data_exclude,
data=data,
@@ -444,6 +450,11 @@ def extract_wheel(
)
build_file.write(contents)
+ if patches:
+ base_cmd = [patch_tool] + (patch_args or []) + ["--input"]
+ for patch in patches:
+ subprocess.run(base_cmd + [patch], check=True, cwd=directory)
+
if not incremental:
os.remove(whl.path)
return f"//{directory}"
diff --git a/python/pip_install/extract_wheels/extract_single_wheel.py b/python/pip_install/extract_wheels/extract_single_wheel.py
index 8742d250..50a1243e 100644
--- a/python/pip_install/extract_wheels/extract_single_wheel.py
+++ b/python/pip_install/extract_wheels/extract_single_wheel.py
@@ -1,4 +1,5 @@
import argparse
+import contextlib
import errno
import glob
import os
@@ -35,6 +36,16 @@ def configure_reproducible_wheels() -> None:
os.environ["PYTHONHASHSEED"] = "0"
+@contextlib.contextmanager
+def chdir_context(new_cwd: os.PathLike) -> None:
+ old_cwd = os.getcwd()
+ try:
+ os.chdir(new_cwd)
+ yield
+ finally:
+ os.chdir(old_cwd)
+
+
def main() -> None:
parser = argparse.ArgumentParser(
description="Build and/or fetch a single wheel based on the requirement passed in"
@@ -55,6 +66,21 @@ def main() -> None:
action="store_true",
help="If set, skips the pip download step. The .whl file is assumbed to be downloaded by bazel.",
)
+ parser.add_argument(
+ "--patch-file",
+ action="append",
+ help="The patch files to apply. Can be repeated for multiple patches.",
+ )
+ parser.add_argument(
+ "--patch-arg",
+ action="append",
+ help="Arguments to pass to the patch tool. Can be repeated for multiple arguments.",
+ )
+ parser.add_argument(
+ "--patch-tool",
+ type=str,
+ help="Path of the patch tool to execute for applying patches.",
+ )
arguments.parse_common_args(parser)
args = parser.parse_args()
deserialized_args = dict(vars(args))
@@ -104,6 +130,9 @@ def main() -> None:
incremental=True,
repo_prefix=args.repo_prefix,
annotation=args.annotation,
+ patches=args.patch_file,
+ patch_args=args.patch_arg,
+ patch_tool=args.patch_tool,
)
diff --git a/python/pip_install/extract_wheels/parse_requirements_to_bzl.py b/python/pip_install/extract_wheels/parse_requirements_to_bzl.py
index 002e6857..fc7fe780 100644
--- a/python/pip_install/extract_wheels/parse_requirements_to_bzl.py
+++ b/python/pip_install/extract_wheels/parse_requirements_to_bzl.py
@@ -88,6 +88,7 @@ def parse_whl_library_args(args: argparse.Namespace) -> Dict[str, Any]:
"bzlmod",
"overrides",
"require_overrides",
+ "patch_spec",
):
if arg in whl_library_args:
whl_library_args.pop(arg)
@@ -104,6 +105,7 @@ def generate_parsed_requirements_contents(
bzlmod: bool = False,
overrides: Optional[Dict[str, Dict[str, str]]] = None,
require_overrides: bool = False,
+ patch_spec: Optional[Dict[str, Dict[str, str]]] = None,
) -> str:
"""
Parse each requirement from the requirements_lock file, and prepare arguments for each
@@ -147,13 +149,19 @@ def generate_parsed_requirements_contents(
else:
override = _NOP_OVERRIDE
+ clean_name = _clean_name(override_name.split("=")[0])
+ patch_attributes = _patch_spec.get(clean_name, {{}})
+
whl_library(
name = name,
requirement = requirement,
annotation = _get_annotation(requirement),
url = override["url"],
sha256 = override["sha256"],
- **whl_config
+ **dict(
+ patch_attributes.items() +
+ _config.items(),
+ )
)
"""
return textwrap.dedent(
@@ -172,6 +180,7 @@ def generate_parsed_requirements_contents(
_bzlmod = {bzlmod}
_overrides = {overrides}
_require_overrides = {require_overrides}
+ _patch_spec = {patch_spec}
_NOP_OVERRIDE = {{
"url": None,
@@ -236,6 +245,7 @@ def generate_parsed_requirements_contents(
bzlmod=bzlmod,
overrides=overrides or {},
require_overrides=require_overrides,
+ patch_spec=patch_spec or {},
)
)
@@ -308,6 +318,13 @@ If set, it will take precedence over python_interpreter.",
action="store_true",
help="If set, requires that every requirement has a URL override in the --overrides JSON file.",
)
+ parser.add_argument(
+ "--patch_spec",
+ type=Path,
+ help=("A json encoded file containing patch specifications for packages. "
+ "Keys are the normalized names of packages. "
+ "Values are objects with keys 'patches', 'patch_args', and 'patch_tool'."),
+ )
arguments.parse_common_args(parser)
args = parser.parse_args()
@@ -338,6 +355,11 @@ If set, it will take precedence over python_interpreter.",
else:
overrides = None
+ if args.patch_spec:
+ patch_spec = json.loads(args.patch_spec.read_text())
+ else:
+ patch_spec = None
+
output.write(
textwrap.dedent(
"""\
@@ -362,6 +384,7 @@ If set, it will take precedence over python_interpreter.",
bzlmod=args.bzlmod,
overrides=overrides,
require_overrides=args.require_overrides,
+ patch_spec=patch_spec,
)
)
diff --git a/python/pip_install/pip_repository.bzl b/python/pip_install/pip_repository.bzl
index 5af07315..bf7f99a8 100644
--- a/python/pip_install/pip_repository.bzl
+++ b/python/pip_install/pip_repository.bzl
@@ -327,6 +327,9 @@ def _pip_repository_impl(rctx):
args += ["--overrides", overrides_file]
if rctx.attr.require_overrides:
args += ["--require-overrides"]
+ if rctx.attr.patch_spec:
+ patch_spec_file = rctx.path(rctx.attr.patch_spec).realpath
+ args += ["--patch_spec", patch_spec_file]
progress_message = "Parsing requirements to starlark"
args += ["--repo", rctx.attr.name, "--repo-prefix", rctx.attr.repo_prefix]
@@ -460,6 +463,10 @@ we do not create the install_deps() macro.
default = False,
doc = "If True, every requirement must have an entry in the \"overrides\" JSON file.",
),
+ "patch_spec": attr.label(
+ allow_single_file = True,
+ doc = "A JSON file containing patches for various modules. TBD",
+ ),
"requirements": attr.label(
allow_single_file = True,
doc = "A 'requirements.txt' pip requirements file.",
@@ -562,6 +569,12 @@ def _whl_library_impl(rctx):
if not download_result.success:
fail("Failed to download {}".format(rctx.attr.url))
args.append("--pre-downloaded")
+ if rctx.attr.patches:
+ patch_files = [str(rctx.path(path).realpath) for path in rctx.attr.patches]
+ args.extend(["--patch-file=" + file for file in patch_files] + [
+ "--patch-tool",
+ rctx.attr.patch_tool,
+ ] + ["--patch-arg=" + arg for arg in rctx.attr.patch_args])
args = _parse_optional_attrs(rctx, args)
@@ -604,6 +617,20 @@ whl_library_attrs = {
"Optionally set this when using the 'url' parameter. " +
"Must be the expected checksum of the downloaded file."
),
+ ),
+ "patches": attr.label_list(
+ doc = (
+ "The patch files to apply. List of strings, Labels, or paths. " +
+ "The paths within the files are relative to the 'site-packages' directory " +
+ "into which the wheel is extracted."
+ ),
+ ),
+ "patch_args": attr.string_list(
+ doc = "Arguments to pass to the patch tool. List of strings.",
+ ),
+ "patch_tool": attr.string(
+ doc = "Path of the patch tool to execute for applying patches. String.",
+ default = "patch",
)
}
@@ -624,7 +651,8 @@ def package_annotation(
copy_executables = {},
data = [],
data_exclude_glob = [],
- srcs_exclude_glob = []):
+ srcs_exclude_glob = [],
+ deps = []):
"""Annotations to apply to the BUILD file content from package generated from a `pip_repository` rule.
[cf]: https://github.com/bazelbuild/bazel-skylib/blob/main/docs/copy_file_doc.md
@@ -650,4 +678,5 @@ def package_annotation(
data = data,
data_exclude_glob = data_exclude_glob,
srcs_exclude_glob = srcs_exclude_glob,
+ deps = deps,
))