remove tools that are obsolete since the %cargo_license macro was added
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#!/usr/bin/python3
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import collections
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import os
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from pathlib import Path
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import sys
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import tempfile
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import click
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import requests
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from requests.compat import urljoin
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import solv
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XDG_CACHE_HOME = Path(os.getenv("XDG_CACHE_HOME", os.path.expanduser("~/.cache")))
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CACHEDIR = XDG_CACHE_HOME / "rust2rpm"
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# Arch that is used for resolving dependencies and such
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ARCH = "x86_64"
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# The repo that contains crates
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REPO_URL = f"https://kojipkgs.fedoraproject.org/repos/f35-build/latest/{ARCH}/"
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# Just some sane chunk size
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CHUNK_SIZE = 8192
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def _download(fname, chksum=None, uncompress=False):
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url = urljoin(REPO_URL, fname)
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with requests.get(urljoin(REPO_URL, fname), stream=True) as r:
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tmp = tempfile.TemporaryFile()
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total = int(r.headers["Content-Length"])
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with click.progressbar(length=total, label=f"Downloading {url}", file=sys.stderr) as pb:
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for chunk in r.iter_content(chunk_size=CHUNK_SIZE):
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pb.update(tmp.write(chunk))
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tmp.seek(0)
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if chksum is not None:
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fchksum = solv.Chksum(chksum.type)
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fchksum.add_fd(tmp.fileno())
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if chksum != fchksum:
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raise Exception(f"Checksums do not match: {fchksum} != {chksum}")
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return solv.xfopen_fd(os.path.basename(url) if uncompress else None, tmp.fileno())
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@click.group()
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def cli():
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pass
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@cli.command()
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@click.pass_context
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@click.argument("source", type=click.Path(exists=True))
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@click.option(
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"-a",
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"--add",
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multiple=True,
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type=click.Path(exists=True),
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help="Add local RPMs to the pool that is used in dependency resolution.",
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)
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@click.option(
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"-v",
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"--verbose",
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is_flag=True,
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help="Enable verbose mode.",
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)
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def get_binary_license(ctx, source, add, verbose):
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"""Get the resulting license of a binary.
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Since all crates (aka `rust-*-devel`) are linked statically, the resulting
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binary license should be result of combining source license and all used
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crates.
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Combined with dynamic BuildRequires generation, the usage would look like:
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\b
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rpmbuild -br *.spec -D "_sourcedir $PWD" --without check
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fedora-helper.py get-binary-license /path/to/buildreqs.nosrc.rpm
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This command resolves dependencies and outputs final license(s).
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"""
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pool = solv.Pool()
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pool.setarch(ARCH)
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repo = pool.add_repo("upstream")
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fd = _download("repodata/repomd.xml")
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chksum = solv.Chksum(solv.REPOKEY_TYPE_SHA256)
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chksum.add("1.1")
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chksum.add_fd(fd.fileno())
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cookie = chksum.raw()
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repo.add_repomdxml(fd)
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fd.close()
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# Find "primary"
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di = repo.Dataiterator_meta(solv.REPOSITORY_REPOMD_TYPE, "primary", solv.Dataiterator.SEARCH_STRING)
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di.prepend_keyname(solv.REPOSITORY_REPOMD)
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for d in di:
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dp = d.parentpos()
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filename = dp.lookup_str(solv.REPOSITORY_REPOMD_LOCATION)
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checksum = dp.lookup_checksum(solv.REPOSITORY_REPOMD_CHECKSUM)
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# FIXME: Can filename be None?
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cache_file = CACHEDIR / "upstream.solv"
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try:
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with open(cache_file, "rb") as f:
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clen = len(cookie)
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f.seek(-clen, os.SEEK_END)
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fcookie = f.read(clen)
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if fcookie != cookie:
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raise IOError("repomd.xml has changed")
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f.seek(0)
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fd = solv.xfopen_fd(None, f.fileno())
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repo.add_solv(fd)
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fd.close()
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cached = True
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except IOError:
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# Failed to load from cache
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cached = False
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if not cached:
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fd = _download(filename, chksum=checksum, uncompress=True)
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repo.add_rpmmd(fd, None)
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fd.close()
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os.makedirs(CACHEDIR, exist_ok=True)
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with tempfile.NamedTemporaryFile(prefix=".newsolv-", dir=CACHEDIR) as tmp:
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fd = solv.xfopen_fd(None, tmp.fileno())
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repo.write(fd)
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fd.flush()
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fd.write(cookie)
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fd.close()
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if repo.iscontiguous():
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repo.empty()
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repo.add_solv(tmp.name)
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try:
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os.unlink(cache_file)
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except FileNotFoundError:
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pass
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os.link(tmp.name, cache_file)
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repo_local = pool.add_repo("local")
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repo_local.priority = 99
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s = repo_local.add_rpm(source)
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for f in add:
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repo_local.add_rpm(f)
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pool.addfileprovides()
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pool.createwhatprovides()
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solver = pool.Solver()
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solver.set_flag(solv.Solver.SOLVER_FLAG_IGNORE_RECOMMENDED, True)
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problems = solver.solve([pool.Job(solv.Job.SOLVER_SOLVABLE | solv.Job.SOLVER_INSTALL, s.id)])
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if problems:
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click.echo("Failed to resolve dependencies:", err=True)
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for problem in problems:
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for rule in problem.findallproblemrules():
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for info in rule.allinfos():
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click.echo(f" - ", nl=False)
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click.secho(info.problemstr(), fg="red")
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ctx.abort()
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licenses = collections.defaultdict(set)
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for p in solver.transaction().newsolvables():
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if not (p.name.startswith("rust-") and p.name.endswith("-devel")) and not p == s:
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continue
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licenses[p.lookup_str(solv.SOLVABLE_LICENSE)].add(p)
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# XXX: This is pure hack and we should optimize license set in much better way
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if "MIT or ASL 2.0" in licenses and "ASL 2.0 or MIT" in licenses:
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licenses["MIT or ASL 2.0"].update(licenses.pop("ASL 2.0 or MIT"))
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for license, packages in sorted(licenses.items()):
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click.echo(f"# {license}")
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if verbose:
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for package in packages:
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click.secho(f"# * {package}", fg="white")
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if __name__ == "__main__":
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cli()
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