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import os
from devtools.yamaker import fileutil
from devtools.yamaker.modules import Switch, Linkable
from devtools.yamaker.project import CMakeNinjaNixProject
def post_install(self):
with self.yamakes["."] as libzstd:
# Unbundle xxhash.
fileutil.re_sub_dir(self.dstdir, '"([^"]*/)?xxhash.h"', "<contrib/libs/xxhash/xxhash.h>")
libzstd.CFLAGS.remove("-DXXH_NAMESPACE=ZSTD_")
libzstd.SRCS.remove("lib/common/xxhash.c")
libzstd.PEERDIR.add("contrib/libs/xxhash")
os.remove(f"{self.dstdir}/lib/common/xxhash.h")
os.remove(f"{self.dstdir}/lib/common/xxhash.c")
# Enable runtime-dispatching for bmi2
libzstd.SRCS.remove("lib/decompress/huf_decompress_amd64.S")
libzstd.after(
"CFLAGS",
Switch(
{
"ARCH_X86_64 AND NOT MSVC": Linkable(
CFLAGS=["-DDYNAMIC_BMI2"],
SRCS=["lib/decompress/huf_decompress_amd64.S"],
)
}
),
)
with self.yamakes["programs/zstd"] as zstd:
zstd.CFLAGS.remove("-DXXH_NAMESPACE=ZSTD_")
# Update version stored in python binding
# (we have to update two different files for py2 and py3 correspondingly)
version_as_number = self.version.replace(".", "0")
fileutil.re_sub_file(
f"{self.ctx.arc}/contrib/python/zstandard/py2/zstd.c",
r"(ZSTD_VERSION_NUMBER != )[0-9]+( \|\| ZSTD_versionNumber\(\) != )[0-9]+",
r"\g<1>{v}\g<2>{v}".format(v=version_as_number),
)
fileutil.re_sub_file(
f"{self.ctx.arc}/contrib/python/zstandard/py3/c-ext/backend_c.c",
r"unsigned our_hardcoded_version = [0-9]+;",
rf"unsigned our_hardcoded_version = {version_as_number};",
)
zstd = CMakeNinjaNixProject(
owners=["g:cpp-contrib"],
arcdir="contrib/libs/zstd",
nixattr="zstd",
build_subdir="build_",
install_targets=["zstd", "programs/zstd"],
put={
"zstd": ".",
"Program zstd": "programs/zstd",
},
disable_includes=[
# our zstd is built without other codecs support
"lz4.h",
"lz4frame.h",
"lzma.h",
"zlib.h",
],
inclink={
# list of public headers, obtained from `dpkg -L libzstd-dev`
"include": [
"lib/zstd_errors.h",
"lib/zdict.h",
"lib/zstd.h",
],
},
post_install=post_install,
)
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