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rules_foreign_cc/foreign_cc/boost_build.bzl

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2.2 KiB
Python

""" Rule for building Boost from sources. """
load("//foreign_cc/private:detect_root.bzl", "detect_root")
load(
"//foreign_cc/private:framework.bzl",
"CC_EXTERNAL_RULE_ATTRIBUTES",
"CC_EXTERNAL_RULE_FRAGMENTS",
"cc_external_rule_impl",
"create_attrs",
"expand_locations_and_make_variables",
)
def _boost_build_impl(ctx):
attrs = create_attrs(
ctx.attr,
configure_name = "BoostBuild",
create_configure_script = _create_configure_script,
tools_data = [],
)
return cc_external_rule_impl(ctx, attrs)
def _create_configure_script(configureParameters):
ctx = configureParameters.ctx
root = detect_root(ctx.attr.lib_source)
data = ctx.attr.data + ctx.attr.build_data
user_options = expand_locations_and_make_variables(ctx, ctx.attr.user_options, "user_options", data)
return [
"cd $INSTALLDIR",
"##copy_dir_contents_to_dir## $$EXT_BUILD_ROOT$$/{}/. .".format(root),
"chmod -R +w .",
"##enable_tracing##",
"./bootstrap.sh {}".format(" ".join(ctx.attr.bootstrap_options)),
"./b2 install {} --prefix=.".format(" ".join(user_options)),
"##disable_tracing##",
]
def _attrs():
attrs = dict(CC_EXTERNAL_RULE_ATTRIBUTES)
attrs.pop("targets")
attrs.update({
"bootstrap_options": attr.string_list(
doc = "any additional flags to pass to bootstrap.sh",
mandatory = False,
),
"user_options": attr.string_list(
doc = "any additional flags to pass to b2",
mandatory = False,
),
})
return attrs
boost_build = rule(
doc = "Rule for building Boost. Invokes bootstrap.sh and then b2 install.",
attrs = _attrs(),
fragments = CC_EXTERNAL_RULE_FRAGMENTS,
output_to_genfiles = True,
provides = [CcInfo],
implementation = _boost_build_impl,
toolchains = [
"@rules_foreign_cc//foreign_cc/private/framework:shell_toolchain",
"@bazel_tools//tools/cpp:toolchain_type",
],
# TODO: Remove once https://github.com/bazelbuild/bazel/issues/11584 is closed and the min supported
# version is updated to a release of Bazel containing the new default for this setting.
incompatible_use_toolchain_transition = True,
)