mirror of
https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
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7ff998f925
Writing a proper "depfile" to follow depending files, based on depfiles generated by rustc. This is based on work done while working on gobject-examples-rs
138 lines
4.6 KiB
Python
138 lines
4.6 KiB
Python
#!/usr/bin/env python3
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import hashlib
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import re
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import glob
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import os
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import shutil
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import subprocess
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import sys
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from argparse import ArgumentParser
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from pathlib import Path as P
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PARSER = ArgumentParser()
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PARSER.add_argument('command', choices=['build', 'test'])
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PARSER.add_argument('build_dir', type=P)
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PARSER.add_argument('src_dir', type=P)
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PARSER.add_argument('root_dir', type=P)
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PARSER.add_argument('target', choices=['release', 'debug'])
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PARSER.add_argument('include')
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PARSER.add_argument('extra_env')
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PARSER.add_argument('prefix', type=P)
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PARSER.add_argument('libdir', type=P)
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PARSER.add_argument('--version', default=None)
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PARSER.add_argument('--exts', nargs="+", default=[])
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PARSER.add_argument('--depfile')
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def generate_depfile_for(libfile):
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file_stem = libfile.parent / libfile.stem
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depfile_content = ""
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with open(f"{file_stem}.d", 'r') as depfile:
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for l in depfile.readlines():
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if l.startswith(str(file_stem)):
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output, srcs = l.split(":", maxsplit=2)
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output = re.sub(f"^{file_stem}",
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f"{opts.build_dir / libfile.stem}", f)
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all_deps = []
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for src in srcs.split(" "):
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all_deps.append(src)
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src = P(src)
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if src.name == 'lib.rs':
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# `rustc` doesn't take `Cargo.toml` into account
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# but we need to
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cargo_toml = src.parent.parent / 'Cargo.toml'
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if cargo_toml.exists():
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all_deps.append(str(cargo_toml))
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depfile_content += f"{output}: {' '.join(all_deps)}\n"
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return depfile_content
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if __name__ == "__main__":
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opts = PARSER.parse_args()
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logfile = open(opts.root_dir / 'meson-logs' /
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f'{opts.src_dir.name}-cargo-wrapper.log', 'w')
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print(opts, file=logfile)
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cargo_target_dir = opts.build_dir / 'target'
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env = os.environ.copy()
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env['CARGO_TARGET_DIR'] = str(cargo_target_dir)
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pkg_config_path = env.get('PKG_CONFIG_PATH', '').split(':')
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pkg_config_path.append(str(opts.root_dir / 'meson-uninstalled'))
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env['PKG_CONFIG_PATH'] = ':'.join(pkg_config_path)
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if opts.extra_env:
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for e in opts.extra_env.split(','):
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k, v = e.split(':')
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env[k] = v
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if opts.command == 'build':
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cargo_cmd = ['cargo', 'cbuild']
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if opts.target == 'release':
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cargo_cmd.append('--release')
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elif opts.command == 'test':
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# cargo test
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cargo_cmd = ['cargo', 'ctest', '--no-fail-fast', '--color=always']
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else:
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print("Unknown command:", opts.command, file=logfile)
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sys.exit(1)
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cargo_cmd.extend(['--manifest-path', opts.src_dir / 'Cargo.toml'])
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cargo_cmd.extend(['--prefix', opts.prefix, '--libdir',
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opts.prefix / opts.libdir])
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def run(cargo_cmd, env):
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try:
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subprocess.run(cargo_cmd, env=env, check=True)
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except subprocess.SubprocessError:
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sys.exit(1)
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for p in opts.include.split(','):
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cargo_cmd.extend(['-p', p])
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run(cargo_cmd, env)
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if opts.command == 'build':
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target_dir = cargo_target_dir / '**' / opts.target
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# Copy so files to build dir
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depfile_content = ""
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for ext in opts.exts:
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for f in glob.glob(str(target_dir / f'*.{ext}'), recursive=True):
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libfile = P(f)
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depfile_content += generate_depfile_for(libfile)
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copied_file = (opts.build_dir / libfile.name)
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try:
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if copied_file.stat().st_mtime == libfile.stat().st_mtime:
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print(f"{copied_file} has not changed.", file=logfile)
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continue
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except FileNotFoundError:
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pass
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print(f"Copying {copied_file}", file=logfile)
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shutil.copy2(f, opts.build_dir)
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with open(opts.depfile, 'w') as depfile:
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depfile.write(depfile_content)
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# Copy generated pkg-config files
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for f in glob.glob(str(target_dir / '*.pc'), recursive=True):
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shutil.copy(f, opts.build_dir)
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# Move -uninstalled.pc to meson-uninstalled
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uninstalled = opts.build_dir / 'meson-uninstalled'
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os.makedirs(uninstalled, exist_ok=True)
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for f in opts.build_dir.glob('*-uninstalled.pc'):
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# move() does not allow us to update the file so remove it if it already exists
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dest = uninstalled / P(f).name
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if dest.exists():
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dest.unlink()
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shutil.move(f, uninstalled)
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