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import json
from pathlib import Path
import multiprocessing
import subprocess
import sys
import toml
from urllib.parse import urlparse
import yaml
import dag
# This should match the behavior of the default unpackPhase.
# See https://github.com/NixOS/nixpkgs/blob/59fa082abdbf462515facc8800d517f5728c909d/pkgs/stdenv/generic/setup.sh#L1044
archive_extensions = [
# xz extensions
".tar.xz",
".tar.lzma",
".txz",
# *.tar or *.tar.*
".tar",
".tar.Z",
".tar.bz2",
".tar.gz",
# Other tar extensions
".tgz",
".tbz2",
".tbz",
".zip"
]
def get_archive_derivation(uuid, artifact_name, url, sha256, closure_dependencies_dag, dependency_uuids, extra_libs, is_darwin):
depends_on = set()
if closure_dependencies_dag.has_node(uuid):
depends_on = set(closure_dependencies_dag.get_dependencies(uuid)).intersection(dependency_uuids)
other_libs = extra_libs.get(uuid, [])
if is_darwin:
fixup = f"""fixupPhase = let
libs = lib.concatMap (lib.mapAttrsToList (k: v: v.path))
[{" ".join(["uuid-" + x for x in depends_on])}];
in ''
''"""
else:
# We provide gcc.cc.lib by default in order to get some common libraries
# like libquadmath.so. A number of packages expect this to be available and
# will give linker errors if it isn't.
fixup = f"""fixupPhase = let
libs = lib.concatMap (lib.mapAttrsToList (k: v: v.path))
[{" ".join(["uuid-" + x for x in depends_on])}];
in ''
find $out -type f -executable -exec \
patchelf --set-rpath \\$ORIGIN:\\$ORIGIN/../lib:${{lib.makeLibraryPath (["$out" glibc gcc.cc.lib] ++ libs ++ (with pkgs; [{" ".join(other_libs)}]))}} {{}} \\;
find $out -type f -executable -exec \
patchelf --set-interpreter ${{glibc}}/lib/ld-linux-x86-64.so.2 {{}} \\;
''"""
return f"""stdenv.mkDerivation {{
name = "{artifact_name}";
src = fetchurl {{
url = "{url}";
sha256 = "{sha256}";
}};
preUnpack = ''
mkdir unpacked
cd unpacked
'';
sourceRoot = ".";
dontConfigure = true;
dontBuild = true;
installPhase = "cp -r . $out";
{fixup};
}}"""
def get_plain_derivation(url, sha256):
return f"""fetchurl {{
url = "{url}";
sha256 = "{sha256}";
}}"""
def process_item(args):
item, julia_path, extract_artifacts_script, closure_dependencies_dag, dependency_uuids, extra_libs, is_darwin = args
uuid, src = item
lines = []
artifacts = toml.loads(subprocess.check_output([julia_path, extract_artifacts_script, uuid, src]).decode())
if not artifacts:
return f' uuid-{uuid} = {{}};\n'
lines.append(f' uuid-{uuid} = {{')
for artifact_name, details in artifacts.items():
if len(details["download"]) == 0:
continue
download = details["download"][0]
url = download["url"]
sha256 = download["sha256"]
git_tree_sha1 = details["git-tree-sha1"]
parsed_url = urlparse(url)
if any(parsed_url.path.endswith(x) for x in archive_extensions):
derivation = get_archive_derivation(uuid, artifact_name, url, sha256, closure_dependencies_dag, dependency_uuids, extra_libs, is_darwin)
else:
derivation = get_plain_derivation(url, sha256)
lines.append(f""" "{artifact_name}" = {{
sha1 = "{git_tree_sha1}";
path = {derivation};
}};\n""")
lines.append(' };\n')
return "\n".join(lines)
def main():
dependencies_path = Path(sys.argv[1])
closure_yaml_path = Path(sys.argv[2])
julia_path = Path(sys.argv[3])
extract_artifacts_script = Path(sys.argv[4])
extra_libs = json.loads(sys.argv[5])
is_darwin = json.loads(sys.argv[6])
out_path = Path(sys.argv[7])
with open(dependencies_path, "r") as f:
dependencies = yaml.safe_load(f)
dependency_uuids = list(dependencies.keys()) # Convert dict_keys to list
with open(closure_yaml_path, "r") as f:
# Build up a map of UUID -> closure information
closure_yaml_list = yaml.safe_load(f) or []
closure_yaml = {}
for item in closure_yaml_list:
closure_yaml[item["uuid"]] = item
# Build up a dependency graph of UUIDs
closure_dependencies_dag = dag.DAG()
for uuid, contents in closure_yaml.items():
if contents.get("depends_on"):
closure_dependencies_dag.add_node(uuid, dependencies=contents["depends_on"].values())
with open(out_path, "w") as f:
if is_darwin:
f.write("{ lib, fetchurl, pkgs, stdenv }:\n\n")
else:
f.write("{ lib, fetchurl, gcc, glibc, pkgs, stdenv }:\n\n")
f.write("rec {\n")
with multiprocessing.Pool(10) as pool:
# Create args tuples for each item
process_args = [
(item, julia_path, extract_artifacts_script, closure_dependencies_dag, dependency_uuids, extra_libs, is_darwin)
for item in dependencies.items()
]
for s in pool.map(process_item, process_args):
f.write(s)
f.write(f"""
}}\n""")
if __name__ == "__main__":
main()
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