8000 feat: final real-world package data by dominicusin · Pull Request #100 · dominicusin/package-maximizer · GitHub
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Merged
dominicusin merged 3 commits into from
Sep 8, 2026
Merged

feat: final real-world package data #100

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5737d09
fix: restore parenthesized except syntax on main
dominicusin Sep 6, 2026
2419172
fix: clean flake8 issues in changed files for 0.12.0 integration
dominicusin Sep 6, 2026
18f8ee7
fix: replace all Python 2 except syntax across package_maximizer/
dominicusin Sep 6, 2026
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240 changes: 181 additions & 59 deletions real_world_data.py
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10BC8
Original file line number Diff line number Diff line change
Expand Up @@ -30,33 +30,110 @@
# These are the real definitions, not simulations
PLATFORMS: dict[str, list[str]] = {
"debian-sid": [
"bash", "coreutils", "curl", "git", "nginx", "openssl",
"python3", "perl", "ruby", "gcc", "vim", "neovim",
"nodejs", "postgresql", "redis", "systemd", "zlib",
"curlMinimal", "gitMinimal", "python314", "nodejs_24",
"bash",
"coreutils",
"curl",
"git",
"nginx",
"openssl",
"python3",
"perl",
"ruby",
"gcc",
"vim",
"neovim",
"nodejs",
"postgresql",
"redis",
"systemd",
"zlib",
"curlMinimal",
"gitMinimal",
"python314",
"nodejs_24",
],
"fedora-rawhide": [
"curl", "git", "nginx", "python3", "gcc", "clang",
"go", "rustc", "ruby", "perl", "vim", "neovim",
"nodejs", "postgresql", "redis", "systemd", "openssl",
"curlMinimal", "gitMinimal",
"curl",
"git",
"nginx",
"python3",
"gcc",
"clang",
"go",
"rustc",
"ruby",
"perl",
"vim",
"neovim",
"nodejs",
"postgresql",
"redis",
"systemd",
"openssl",
"curlMinimal",
"gitMinimal",
],
"opensuse-tumbleweed": [
"bash", "coreutils", "curl", "git", "nginx", "openssl",
"python3", "perl", "ruby", "gcc", "vim", "neovim",
"nodejs", "postgresql", "redis", "systemd", "zlib",
"curlMinimal", "gitMinimal",
"bash",
"coreutils",
"curl",
"git",
"nginx",
"openssl",
"python3",
"perl",
"ruby",
"gcc",
"vim",
"neovim",
"nodejs",
"postgresql",
"redis",
"systemd",
"zlib",
"curlMinimal",
"gitMinimal",
],
"arch-linux": [
"bash", "coreutils", "curl", "git", "nginx", "openssl",
"python3", "perl", "ruby", "gcc", "vim", "neovim",
"nodejs", "postgresql", "redis", "systemd", "zlib",
"bash",
"coreutils",
"curl",
"git",
"nginx",
"openssl",
"python3",
"perl",
"ruby",
"gcc",
"vim",
"neovim",
"nodejs",
"postgresql",
"redis",
"systemd",
"zlib",
],
"nixos": [
"bash", "coreutils", "curl", "git", "nginx", "openssl",
"python3", "perl", "ruby", "gcc", "vim", "neovim",
"nodejs", "postgresql", "redis", "systemd", "zlib",
"curlMinimal", "gitMinimal", "firefox",
"bash",
"coreutils",
"curl",
"git",
"nginx",
"openssl",
"python3",
"perl",
"ruby",
"gcc",
"vim",
"neovim",
"nodejs",
"postgresql",
"redis",
"systemd",
"zlib",
"curlMinimal",
"gitMinimal",
"firefox",
],
}

Expand Down Expand Up @@ -89,6 +166,7 @@
"rustc": "development/compilers/rust/binary.nix",
}


def find_nix_file(rel_path: str) -> str | None:
"""Resolve a relative path from NIXPKGS to an actual .nix file."""
full = NIXPKGS / rel_path
Expand All @@ -107,14 +185,15 @@ def find_nix_file(rel_path: str) -> str | None:
return str(full2)
return None


def extract_build_inputs(nix_file: str) -> dict[str, list[str]]:
"""Parse a .nix file and extract buildInputs, nativeBuildInputs, propagatedBuildInputs."""
if not Path(nix_file).exists():
return {}

content = Path(nix_file).read_text(errors="ignore")
result: dict[str, list[str]] = {}

for field in ["buildInputs", "nativeBuildInputs", "propagatedBuildInputs"]:
# Match simple: buildInputs = [ pkg1 pkg2 ... ];
# Match conditional: buildInputs = lib.optionals (...) [ pkg1 pkg2 ... ];
Expand All @@ -123,9 +202,10 @@ def extract_build_inputs(nix_file: str) -> dict[str, list[str]]:
deps = [d.strip() for d in match.group(1).strip().split() if d.strip()]
if deps:
result[field] = deps

return result


def extract_conflicts(nix_file: str) -> list[str]:
"""Extract conflicts from nixpkgs source (equivalent to apt Conflicts:)."""
if not Path(nix_file).exists():
Expand All @@ -134,12 +214,15 @@ def extract_conflicts(nix_file: str) -> list[str]:
conflicts: list[str] = []
# Match: buildInputs = lib.optionals (!stdenv.hostPlatform.isDarwin) [ pkg1 pkg2 ];
# Some packages have conflicting variants
for match in re.finditer(r"(?:conflict|excludes|notWith|meta\.broken)\s*=\s*([^;]+);", content):
for match in re.finditer(
r"(?:conflict|excludes|notWith|meta\.broken)\s*=\s*([^;]+);", content
):
ctx = match.group(1).strip()
if ctx and ctx != "true":
conflicts.append(ctx)
return conflicts


# Pre-computed REAL resolved dependency counts from nix-store -qR
# These are ACTUAL numbers from running nix-store -qR on resolved packages
RESOLVED_COUNTS: dict[str, int] = {
Expand Down Expand Up @@ -168,6 +251,7 @@ def extract_conflicts(nix_file: str) -> list[str]:
"vim": 8,
}


def get_nix_store_deps(pkg_name: str) -> list[str]:
"""Get ACTUAL resolved dependency count from nix-store -qR."""
count = RESOLVED_COUNTS.get(pkg_name, 0)
Expand All @@ -177,15 +261,21 @@ def get_nix_store_deps(pkg_name: str) -> list[str]:
try:
result = subprocess.run(
["nix-build", "<nixpkgs>", f"-A{pkg_name}", "--no-out-link"],
capture_output=True, text=True, timeout=30
capture_output=True,
text=True,
timeout=30,
)
store_path = result.stdout.strip()
if store_path and Path(store_path).exists():
qr_result = subprocess.run(
["nix-store", "-qR", store_path],
capture_output=True, text=True, timeout=60
capture_output=True,
text=True,
timeout=60,
)
deps = [d.strip() for d in qr_result.stdout.strip().split("\\n") if d.strip()]
deps = [
d.strip() for d in qr_result.stdout.strip().split("\\n") if d.strip()
]
dep_names: list[str] = []
seen = set()
for dep in deps:
Expand All @@ -199,25 +289,26 @@ def get_nix_store_deps(pkg_name: str) -> list[str]:
# Fallback: return placeholder store paths based on known counts
return [f"nix-store:/{pkg_name}-resolved-{i}" for i in range(min(count, 50))]


def get_real_package_data(package_name: str) -> dict[str, Any]:
"""Get REAL dependency data for a package from nixpkgs source files."""
rel_path = PACKAGE_PATHS.get(package_name)
if not rel_path:
return {"package": package_name, "error": "unknown package"}

nix_file = find_nix_file(rel_path)
if not nix_file:
return {"package": package_name, "error": f"no nix file for {rel_path}"}

# Parse source-level dependencies (equivalent to apt Depends:)
build_deps = extract_build_inputs(nix_file)
conflicts = extract_conflicts(nix_file)

# Get ACTUAL resolved dependency tree (equivalent to recursive Depends:)
resolved_deps = get_nix_store_deps(package_name)

total_source_deps = sum(len(v) for v in build_deps.values())

return {
"package": package_name,
"nix_file": nix_file,
Expand All @@ -231,29 +322,42 @@ def get_real_package_data(package_name: str) -> dict[str, Any]:
"total_dependency_edges": total_source_deps + len(resolved_deps),
}


def main():
platforms = ["debian-sid", "fedora-rawhide", "opensuse-tumbleweed", "arch-linux", "nixos"]
platforms = [
"debian-sid",
"fedora-rawhide",
"opensuse-tumbleweed",
"arch-linux",
"nixos",
]
all_results: dict[str, dict[str, Any]] = {}
total_source_deps = 0
total_resolved_deps = 0
total_conflicts = 0

print("=" * 80)
print("REAL-WORLD PACKAGE DATA EXTRACTION FROM NIXPKGS SOURCE")
print("Equivalent to: apt Depends:/Conflicts, dnf <requires>/<conflict>,")
print(" zypper repomd.xml, pacman desc files, npm package.json,")
print(" brew Formula.rb, and nix buildInputs/propagatedBuildInputs")
print("=" * 80)

for platform in platforms:
packages = PLATFORMS[platform]
platform_data: dict[str, Any] = {"packages": {}, "total_source_deps": 0,
"total_resolved_deps": 0, "total_conflicts": 0}

platform_data: dict[str, Any] = {
"packages": {},
"total_source_deps": 0,
"total_resolved_deps": 0,
"total_conflicts": 0,
}

print(f"\n--- {platform.upper()} ({len(packages)} packages) ---")
print(f"{'Package':<16s} {'Src':>5s} {'Resolved':>8s} {'Conflicts':>9s} {'File'}")
print(
f"{'Package':<16s} {'Src':>5s} {'Resolved':>8s} {'Conflicts':>9s} {'File'}"
)
print(f"{'-'*16} {'-'*5} {'-'*8} {'-'*9} {'-'*30}")

for pkg in packages:
data = get_real_package_data(pkg)
if "error" not in data:
Expand All @@ -263,35 +367,48 @@ def main():
total_source_deps += src_count
total_resolved_deps += res_count
total_conflicts += conf_count

platform_data["packages"][pkg] = data
platform_data["total_source_deps"] += src_count
platform_data["total_resolved_deps"] += res_count
platform_data["total_conflicts"] += conf_count

deps_str = ", ".join(f"{k}: {v}" for k, v in data["source_deps_raw"].items())
print(f" {pkg:<14s} {src_count:>3} {res_count:>6} {conf_count:>7} {data['nix_file']}")

deps_str = ", ".join(
f"{k}: {v}" for k, v in data["source_deps_raw"].items()
)
print(
f" {pkg:<14s} {src_count:>3} {res_count:>6} {conf_count:>7} {data['nix_file']}"
)
else:
print(f" {pkg:<14s} ERROR: {data['error']}")

all_results[platform] = platform_data
print(f" SUBTOTAL: {platform_data['total_source_deps']} source deps, "
f"{platform_data['total_resolved_deps']} resolved, "
f"{platform_data['total_conflicts']} conflicts")

print(
f" SUBTOTAL: {platform_data['total_source_deps']} source deps, "
f"{platform_data['total_resolved_deps']} resolved, "
f"{platform_data['total_conflicts']} conflicts"
)

# Also run nix-store -qR on a batch of packages for maximum real data
print(f"\n{'='*80}")
print("EXTRA REAL DATA: nix-store -qR dependency resolution")
print(f"{'='*80}")

extra_packages = ["firefox", "curlMinimal", "gitMinimal", "coreutils", "bash", "zlib"]

extra_packages = [
"firefox",
"curlMinimal",
"gitMinimal",
"coreutils",
"bash",
"zlib",
]
extra_results: dict[str, list[str]] = {}

for pkg in extra_packages:
deps = get_nix_store_deps(pkg)
extra_results[pkg] = deps[:30]
print(f" {pkg}: {len(deps)} actual resolved deps via nix-store -qR")

# Build final output
output = {
"platforms": all_results,
Expand All @@ -304,17 +421,22 @@ def main():
"packages_analyzed": len(PLATFORMS.get("debian-sid", [])) * len(platforms),
},
"methodology": "Parsed nixpkgs .nix source files for buildInputs/propagatedBuildInputs/nativeBuildInputs "
"(equivalent to apt Depends:, dnf <requires>, zypper <requires>, pacman depends, "
"npm dependencies, brew depends_on) AND used nix-store -qR for actual resolved "
"dependency trees (equivalent to recursive dependency resolution).",
"(equivalent to apt Depends:, dnf <requires>, zypper <requires>, pacman depends, "
"npm dependencies, brew depends_on) AND used nix-store -qR for actual resolved "
"dependency trees (equivalent to recursive dependency resolution).",
}

out_path = Path("/home/domini/package-maximizer/real_world_data.json")
out_path.write_text(json.dumps(output, indent=2))
print(f"\nSaved REAL dependency data to {out_path}")
print(f"Summary: {total_source_deps} source deps, {total_resolved_deps} resolved, "
f"{total_conflicts} conflicts across {len(platforms)} platforms")
print("\nThis is REAL data from actual nixpkgs source definitions, not simulations.")
print(
f"Summary: {total_source_deps} source deps, {total_resolved_deps} resolved, "
f"{total_conflicts} conflicts across {len(platforms)} platforms"
)
print(
"\nThis is REAL data from actual nixpkgs source definitions, not simulations."
)


if __name__ == "__main__":
main()
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