mirror of
https://github.com/davidgiven/fluxengine.git
synced 2025-10-24 11:11:02 -07:00
84 lines
2.5 KiB
Python
84 lines
2.5 KiB
Python
from build.ab import Rule, Target, G
|
|
import os
|
|
import subprocess
|
|
|
|
|
|
class _PkgConfig:
|
|
package_present = set()
|
|
package_properties = {}
|
|
pkgconfig = None
|
|
|
|
def __init__(self, cmd):
|
|
assert cmd, "no pkg-config environment variable supplied"
|
|
self.pkgconfig = cmd
|
|
|
|
r = subprocess.run(f"{cmd} --list-all", shell=True, capture_output=True)
|
|
ps = r.stdout.decode("utf-8")
|
|
self.package_present = {l.split(" ", 1)[0] for l in ps.splitlines()}
|
|
|
|
def has_package(self, name):
|
|
return name in self.package_present
|
|
|
|
def get_property(self, name, flag):
|
|
p = f"{name}.{flag}"
|
|
if p not in self.package_properties:
|
|
r = subprocess.run(
|
|
f"{self.pkgconfig} {flag} {name}",
|
|
shell=True,
|
|
capture_output=True,
|
|
)
|
|
self.package_properties[p] = r.stdout.decode("utf-8").strip()
|
|
return self.package_properties[p]
|
|
|
|
|
|
TargetPkgConfig = _PkgConfig(G.PKG_CONFIG)
|
|
HostPkgConfig = _PkgConfig(G.HOST_PKG_CONFIG)
|
|
|
|
|
|
def _package(self, name, package, fallback, pkgconfig):
|
|
if pkgconfig.has_package(package):
|
|
cflags = pkgconfig.get_property(package, "--cflags")
|
|
ldflags = pkgconfig.get_property(package, "--libs")
|
|
|
|
if cflags:
|
|
self.args["caller_cflags"] = [cflags]
|
|
if ldflags:
|
|
self.args["caller_ldflags"] = [ldflags]
|
|
self.args["clibrary_deps"] = [self]
|
|
self.args["cheader_deps"] = [self]
|
|
self.traits.update({"clibrary", "cxxlibrary"})
|
|
return
|
|
|
|
assert fallback, f"Required package '{package}' not installed"
|
|
|
|
if "cheader_deps" in fallback.args:
|
|
self.args["cheader_deps"] = fallback.args["cheader_deps"]
|
|
if "clibrary_deps" in fallback.args:
|
|
self.args["clibrary_deps"] = fallback.args["clibrary_deps"]
|
|
if "cheader_files" in fallback.args:
|
|
self.args["cheader_files"] = fallback.args["cheader_files"]
|
|
if "clibrary_files" in fallback.args:
|
|
self.args["clibrary_files"] = fallback.args["clibrary_files"]
|
|
self.ins = fallback.ins
|
|
self.outs = fallback.outs
|
|
self.deps = fallback.deps
|
|
self.traits = fallback.traits
|
|
|
|
|
|
@Rule
|
|
def package(self, name, package=None, fallback: Target = None):
|
|
_package(self, name, package, fallback, TargetPkgConfig)
|
|
|
|
|
|
@Rule
|
|
def hostpackage(self, name, package=None, fallback: Target = None):
|
|
_package(self, name, package, fallback, HostPkgConfig)
|
|
|
|
|
|
def has_package(name):
|
|
return TargetPkgConfig.has_package(name)
|
|
|
|
|
|
def has_host_package(name):
|
|
return HostPkgConfig.has_package(name)
|