#!/usr/bin/env python3
import glob
import os
import shutil
import subprocess
import sys
import shlex
from argparse import ArgumentParser
from pathlib import Path as P
PARSER = ArgumentParser()
PARSER.add_argument("command", choices=["build", "test"])
PARSER.add_argument("build_dir", type=P)
PARSER.add_argument("src_dir", type=P)
PARSER.add_argument("root_dir", type=P)
PARSER.add_argument("target", choices=["release", "debug"])
PARSER.add_argument("prefix", type=P)
PARSER.add_argument("libdir", type=P)
PARSER.add_argument("--version", default=None)
PARSER.add_argument("--bin", default=None, type=P)
PARSER.add_argument("--features", nargs="+", default=[])
PARSER.add_argument("--packages", nargs="+", default=[])
PARSER.add_argument("--examples", nargs="+", default=[])
PARSER.add_argument("--lib-suffixes", nargs="+", default=[])
PARSER.add_argument("--exe-suffix")
PARSER.add_argument("--depfile")
PARSER.add_argument("--disable-doc", action="store_true", default=False)
def shlex_join(args):
if hasattr(shlex, "join"):
return shlex.join(args)
return " ".join([shlex.quote(arg) for arg in args])
def generate_depfile_for(fpath):
file_stem = fpath.parent / fpath.stem
depfile_content = ""
with open(f"{file_stem}.d", "r") as depfile:
for line in depfile.readlines():
if line.startswith(str(file_stem)):
# We can't blindly split on `:` because on Windows that's part
# of the drive letter. Lucky for us, the format of the dep file
# is one of:
#
# /path/to/output: /path/to/src1 /path/to/src2
# /path/to/output:
#
# So we parse these two cases specifically
if line.endswith(":"):
output = line[:-1]
srcs = ""
else:
output, srcs = line.split(": ", maxsplit=2)
all_deps = []
for src in srcs.split(" "):
all_deps.append(src)
src = P(src)
if src.name == "lib.rs":
# `rustc` doesn't take `Cargo.toml` into account
# but we need to
cargo_toml = src.parent.parent / "Cargo.toml"
if cargo_toml.exists():
all_deps.append(str(cargo_toml))
depfile_content += f"{output}: {' '.join(all_deps)}\n"
return depfile_content
if __name__ == "__main__":
opts = PARSER.parse_args()
logdir = opts.root_dir / "meson-logs"
logfile_path = logdir / f"{opts.src_dir.name}-cargo-wrapper.log"
logfile = open(logfile_path, mode="w", buffering=1, encoding='utf-8')
print(opts, file=logfile)
cargo_target_dir = opts.build_dir / "target"
env = os.environ.copy()
if "PKG_CONFIG_PATH" in env:
pkg_config_path = env["PKG_CONFIG_PATH"].split(os.pathsep)
else:
pkg_config_path = []
pkg_config_path.append(str(opts.root_dir / "meson-uninstalled"))
env["PKG_CONFIG_PATH"] = os.pathsep.join(pkg_config_path)
if "NASM" in env:
env["PATH"] = os.pathsep.join([os.path.dirname(env["NASM"]), env["PATH"]])
rustc_target = None
if "RUSTC" in env:
rustc_cmdline = shlex.split(env["RUSTC"])
# grab target from RUSTFLAGS
rust_flags = rustc_cmdline[1:] + shlex.split(env.get("RUSTFLAGS", ""))
if "--target" in rust_flags:
rustc_target_idx = rust_flags.index("--target")
_ = rust_flags.pop(rustc_target_idx) # drop '--target'
rustc_target = rust_flags.pop(rustc_target_idx)
env["RUSTFLAGS"] = shlex_join(rust_flags)
env["RUSTC"] = rustc_cmdline[0]
features = opts.features
if opts.command == "build":
cargo_cmd = ["cargo"]
if opts.bin or opts.examples:
cargo_cmd += ["build"]
else:
cargo_cmd += ["cbuild"]
if not opts.disable_doc:
features += ["doc"]
if opts.target == "release":
cargo_cmd.append("--release")
elif opts.command == "test":
# cargo test
cargo_cmd = ["cargo", "ctest", "--no-fail-fast", "--color=always"]
else:
print("Unknown command:", opts.command, file=logfile)
sys.exit(1)
if rustc_target:
cargo_cmd += ["--target", rustc_target]
if features:
cargo_cmd += ["--features", ",".join(features)]
cargo_cmd += ["--target-dir", cargo_target_dir]
cargo_cmd += ["--manifest-path", opts.src_dir / "Cargo.toml"]
if opts.bin:
cargo_cmd.extend(["--bin", opts.bin.name])
else:
if not opts.examples:
cargo_cmd.extend(
["--prefix", opts.prefix, "--libdir", opts.prefix / opts.libdir]
)
for p in opts.packages:
cargo_cmd.extend(["-p", p])
for e in opts.examples:
cargo_cmd.extend(["--example", e])
def run(cargo_cmd, env):
print(cargo_cmd, env, file=logfile)
try:
subprocess.run(cargo_cmd, env=env, cwd=opts.src_dir, check=True)
except subprocess.SubprocessError:
sys.exit(1)
run(cargo_cmd, env)
if opts.command == "build":
target_dir = cargo_target_dir / "**" / opts.target
if opts.bin:
exe = glob.glob(
str(target_dir / opts.bin) + opts.exe_suffix, recursive=True
)[0]
shutil.copy2(exe, opts.build_dir)
depfile_content = generate_depfile_for(P(exe))
else:
# Copy so files to build dir
depfile_content = ""
for suffix in opts.lib_suffixes:
for f in glob.glob(str(target_dir / f"*.{suffix}"), recursive=True):
libfile = P(f)
depfile_content += generate_depfile_for(libfile)
copied_file = opts.build_dir / libfile.name
try:
if copied_file.stat().st_mtime == libfile.stat().st_mtime:
print(f"{copied_file} has not changed.", file=logfile)
continue
except FileNotFoundError:
pass
print(f"Copying {copied_file}", file=logfile)
shutil.copy2(f, opts.build_dir)
# Copy examples to builddir
for example in opts.examples:
example_glob = str(target_dir / "examples" / example) + opts.exe_suffix
exe = glob.glob(example_glob, recursive=True)[0]
shutil.copy2(exe, opts.build_dir)
depfile_content += generate_depfile_for(P(exe))
with open(opts.depfile, "w") as depfile:
depfile.write(depfile_content)
# Copy generated pkg-config files
for f in glob.glob(str(target_dir / "*.pc"), recursive=True):
shutil.copy(f, opts.build_dir)
# Move -uninstalled.pc to meson-uninstalled
uninstalled = opts.build_dir / "meson-uninstalled"
os.makedirs(uninstalled, exist_ok=True)
for f in opts.build_dir.glob("*-uninstalled.pc"):
# move() does not allow us to update the file so remove it if it already exists
dest = uninstalled / P(f).name
if dest.exists():
dest.unlink()
# move() takes paths from Python3.9 on
if (sys.version_info.major >= 3) and (sys.version_info.minor >= 9):
shutil.move(f, uninstalled)
else:
shutil.move(str(f), str(uninstalled))