mirror of
https://github.com/bazel-contrib/bazel-lib
synced 2024-11-26 13:30:30 +00:00
47114fd4f9
The currently implementation differs from the docstring here and in upstream skylib: This rule is intended to be used in the implementation function of a repository rule. If the parameters "patches", "patch_tool", "patch_args", "patch_cmds" and "patch_cmds_win" are not specified then they are taken from "ctx.attr".
155 lines
6 KiB
Python
155 lines
6 KiB
Python
# Copyright 2018 The Bazel Authors. All rights reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
"""Fork of @bazel_tools//tools/build_defs/repo:utils.bzl patch function with
|
|
working_directory argument added.
|
|
|
|
Upstream code is at
|
|
https://github.com/bazelbuild/bazel/blob/f4214746fcd15f0ef8c4e747ef8e3edca9f112a5/tools/build_defs/repo/utils.bzl#L87
|
|
"""
|
|
|
|
load(":repo_utils.bzl", "repo_utils")
|
|
|
|
# Temporary directory for downloading remote patch files.
|
|
_REMOTE_PATCH_DIR = ".tmp_remote_patches"
|
|
|
|
def _use_native_patch(patch_args):
|
|
"""If patch_args only contains -p<NUM> options, we can use the native patch implementation."""
|
|
for arg in patch_args:
|
|
if not arg.startswith("-p"):
|
|
return False
|
|
return True
|
|
|
|
def _download_patch(ctx, patch_url, integrity, auth):
|
|
name = patch_url.split("/")[-1]
|
|
patch_path = ctx.path(_REMOTE_PATCH_DIR).get_child(name)
|
|
ctx.download(
|
|
patch_url,
|
|
patch_path,
|
|
canonical_id = ctx.attr.canonical_id,
|
|
auth = auth,
|
|
integrity = integrity,
|
|
)
|
|
return patch_path
|
|
|
|
def patch(ctx, patches = None, patch_cmds = None, patch_cmds_win = None, patch_tool = None, patch_args = None, auth = None, patch_directory = None):
|
|
"""Implementation of patching an already extracted repository.
|
|
|
|
This rule is intended to be used in the implementation function of
|
|
a repository rule. If the parameters `patches`, `patch_tool`,
|
|
`patch_args`, `patch_cmds` and `patch_cmds_win` are not specified
|
|
then they are taken from `ctx.attr`.
|
|
|
|
Args:
|
|
ctx: The repository context of the repository rule calling this utility
|
|
function.
|
|
patches: The patch files to apply. List of strings, Labels, or paths.
|
|
patch_cmds: Bash commands to run for patching, passed one at a
|
|
time to bash -c. List of strings
|
|
patch_cmds_win: Powershell commands to run for patching, passed
|
|
one at a time to powershell /c. List of strings. If the
|
|
boolean value of this parameter is false, patch_cmds will be
|
|
used and this parameter will be ignored.
|
|
patch_tool: Path of the patch tool to execute for applying
|
|
patches. String.
|
|
patch_args: Arguments to pass to the patch tool. List of strings.
|
|
auth: An optional dict specifying authentication information for some of the URLs.
|
|
patch_directory: Directory to apply the patches in
|
|
|
|
"""
|
|
bash_exe = ctx.os.environ["BAZEL_SH"] if "BAZEL_SH" in ctx.os.environ else "bash"
|
|
powershell_exe = ctx.os.environ["BAZEL_POWERSHELL"] if "BAZEL_POWERSHELL" in ctx.os.environ else "powershell.exe"
|
|
|
|
if patches == None and hasattr(ctx.attr, "patches"):
|
|
patches = ctx.attr.patches
|
|
if patches == None:
|
|
patches = []
|
|
|
|
remote_patches = {}
|
|
remote_patch_strip = 0
|
|
if hasattr(ctx.attr, "remote_patches") and ctx.attr.remote_patches:
|
|
if hasattr(ctx.attr, "remote_patch_strip"):
|
|
remote_patch_strip = ctx.attr.remote_patch_strip
|
|
remote_patches = ctx.attr.remote_patches
|
|
|
|
if patch_cmds == None and hasattr(ctx.attr, "patch_cmds"):
|
|
patch_cmds = ctx.attr.patch_cmds
|
|
if patch_cmds == None:
|
|
patch_cmds = []
|
|
|
|
if patch_cmds_win == None and hasattr(ctx.attr, "patch_cmds_win"):
|
|
patch_cmds_win = ctx.attr.patch_cmds_win
|
|
if patch_cmds_win == None:
|
|
patch_cmds_win = []
|
|
|
|
if patch_tool == None and hasattr(ctx.attr, "patch_tool"):
|
|
patch_tool = ctx.attr.patch_tool
|
|
if not patch_tool:
|
|
patch_tool = "patch"
|
|
native_patch = True
|
|
else:
|
|
native_patch = False
|
|
|
|
if patch_args == None and hasattr(ctx.attr, "patch_args"):
|
|
patch_args = ctx.attr.patch_args
|
|
if patch_args == None:
|
|
patch_args = []
|
|
|
|
if len(remote_patches) > 0 or len(patches) > 0 or len(patch_cmds) > 0:
|
|
ctx.report_progress("Patching repository")
|
|
|
|
# Apply remote patches
|
|
for patch_url in remote_patches:
|
|
integrity = remote_patches[patch_url]
|
|
patchfile = _download_patch(ctx, patch_url, integrity, auth)
|
|
ctx.patch(patchfile, remote_patch_strip)
|
|
ctx.delete(patchfile)
|
|
ctx.delete(ctx.path(_REMOTE_PATCH_DIR))
|
|
|
|
# Apply local patches
|
|
if native_patch and _use_native_patch(patch_args) and not patch_directory:
|
|
if patch_args:
|
|
strip = int(patch_args[-1][2:])
|
|
else:
|
|
strip = 0
|
|
for patchfile in patches:
|
|
ctx.patch(patchfile, strip)
|
|
else:
|
|
for patchfile in patches:
|
|
command = "{patchtool} {patch_args} < {patchfile}".format(
|
|
patchtool = patch_tool,
|
|
patchfile = ctx.path(patchfile),
|
|
patch_args = " ".join([
|
|
"'%s'" % arg
|
|
for arg in patch_args
|
|
]),
|
|
)
|
|
st = ctx.execute([bash_exe, "-c", command], working_directory = patch_directory)
|
|
if st.return_code:
|
|
fail("Error applying patch %s:\n%s%s" %
|
|
(str(patchfile), st.stderr, st.stdout))
|
|
|
|
if repo_utils.is_windows(ctx) and patch_cmds_win:
|
|
for cmd in patch_cmds_win:
|
|
st = ctx.execute([powershell_exe, "/c", cmd], working_directory = patch_directory)
|
|
if st.return_code:
|
|
fail("Error applying patch command %s:\n%s%s" %
|
|
(cmd, st.stdout, st.stderr))
|
|
else:
|
|
for cmd in patch_cmds:
|
|
st = ctx.execute([bash_exe, "-c", cmd], working_directory = patch_directory)
|
|
if st.return_code:
|
|
fail("Error applying patch command %s:\n%s%s" %
|
|
(cmd, st.stdout, st.stderr))
|