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|
#!/usr/bin/env python3
import tempfile
import pathlib
import subprocess
import debian.deb822
from collections import defaultdict
def main():
pkglist = defaultdict(lambda: defaultdict(set))
apttrusted = subprocess.check_output(
"eval $(apt-config shell v Dir::Etc::Trusted/f); printf $v", shell=True
).decode()
apttrustedparts = subprocess.check_output(
"eval $(apt-config shell v Dir::Etc::TrustedParts/f); printf $v", shell=True
).decode()
debci_arches = set(
["amd64", "arm64", "armel", "armhf", "i386", "ppc64el", "riscv64", "s390x"]
)
# debci_arches = set(["amd64", "i386"])
for arch in list(debci_arches):
with tempfile.TemporaryDirectory() as tmpdir:
tmpdir = pathlib.Path(tmpdir)
(tmpdir / "etc" / "apt").mkdir(parents=True)
(tmpdir / "var" / "cache").mkdir(parents=True)
(tmpdir / "var" / "lib").mkdir(parents=True)
(tmpdir / "apt.conf").write_text(
f"""
Apt::Architecture "{arch}";
Apt::Architectures "{arch}";
Dir "{tmpdir}";
Dir::Etc::Trusted "{apttrusted}";
Dir::Etc::TrustedParts "{apttrustedparts}";
"""
)
(tmpdir / "etc" / "apt" / "sources.list").write_text(
"deb http://deb.debian.org/debian/ unstable main"
)
subprocess.check_call(
["apt-get", "update"], env={"APT_CONFIG": tmpdir / "apt.conf"}
)
indextargets = subprocess.check_output(
[
"apt-get",
"indextargets",
"--format",
"$(FILENAME)",
"Created-By: Packages",
f"Architecture: {arch}",
],
env={"APT_CONFIG": tmpdir / "apt.conf"},
).decode()
if not indextargets.strip():
print(f"skipping {arch}")
debci_arches.remove(arch)
continue
(tmpdir / "Packages").write_bytes(
subprocess.check_output(
["/usr/lib/apt/apt-helper", "cat-file", *indextargets.splitlines()]
)
)
pkgset = (
subprocess.check_output(
[
"grep-dctrl",
"--no-field-names",
"--show-field=Package",
"--exact-match",
"(",
"--field=Essential",
"yes",
"--or",
"--field=Priority",
"required",
"--or",
"--field=Priority",
"important",
"--or",
"--field=Priority",
"standard",
")",
(tmpdir / "Packages"),
]
)
.decode()
.splitlines()
)
pkgset.extend(
[
"build-essential",
"busybox",
"gpg",
"eatmydata",
"usr-is-merged",
"usrmerge",
]
)
ceve = subprocess.check_output(
[
"dose-ceve",
f"--deb-native-arch={arch}",
"-c",
",".join(pkgset),
"-t",
"deb",
"-G",
"pkg",
"-T",
"deb",
(tmpdir / "Packages"),
]
)
for pkg in debian.deb822.Packages.iter_paragraphs(ceve):
src = pkg.get("Source")
if src is None:
src = pkg["Package"]
elif " " in src:
src = src.split()[0]
pkglist[src][pkg["Package"]].add(arch)
result = []
for src in pkglist:
srcarches = set()
for pkg in pkglist[src]:
srcarches |= pkglist[src][pkg]
representers = [pkg for pkg in pkglist[src] if pkglist[src][pkg] == srcarches]
if not representers:
print(f"nothing represents {src}:", pkglist[src])
continue
pkg = sorted(representers)[0]
if pkglist[src][pkg] == debci_arches:
result.append(pkg)
else:
result.append(f"{pkg} [{' '.join(sorted(pkglist[src][pkg]))}]")
line = "Depends: "
for dep in sorted(result):
newline = line + f"{dep}, "
if len(newline) > 79:
print(line.removesuffix(" "))
line = f" {dep}, "
else:
line = newline
print(line.removesuffix(", "))
if __name__ == "__main__":
main()
|
