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https://github.com/NixOS/nixpkgs.git
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72 lines
2.9 KiB
Python
72 lines
2.9 KiB
Python
#!/usr/bin/env python3
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import sys
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import json
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import os
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import subprocess
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import string
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def eprint(text: str):
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print(text, file=sys.stderr)
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if not os.path.exists("dub.selections.json"):
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eprint("The file `dub.selections.json` does not exist in the current working directory")
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eprint("run `dub upgrade` to generate it")
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sys.exit(1)
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with open("dub.selections.json") as f:
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selectionsJson = json.load(f)
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depsDict: dict = selectionsJson["versions"]
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# For each dependency expand non-expanded version into a dict with a "version" key
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depsDict = {pname: (versionOrDepDict if isinstance(versionOrDepDict, dict) else {"version": versionOrDepDict}) for (pname, versionOrDepDict) in depsDict.items()}
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# Don't process path-type selections
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depsDict = {pname: depDict for (pname, depDict) in depsDict.items() if "path" not in depDict}
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# Pre-validate selections before trying to fetch
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for pname in depsDict:
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depDict = depsDict[pname]
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version = depDict["version"]
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if version.startswith("~"):
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eprint(f'Expected version of "{pname}" to be non-branch type')
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eprint(f'Found: "{version}"')
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eprint("Please specify a non-branch version inside `dub.selections.json`")
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eprint("When packaging, you might also need to patch the version value in the appropriate places (`dub.selections.json`, dub.sdl`, `dub.json`)")
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sys.exit(1)
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if "repository" in depDict:
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repository = depDict["repository"]
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if not repository.startswith("git+"):
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eprint(f'Expected repository field of "{pname}" to begin with "git+"')
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eprint(f'Found: "{repository}"')
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sys.exit(1)
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if (len(version) < 7 or len(version) > 40 or not all(c in string.hexdigits for c in version)):
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eprint(f'Expected version field of "{pname}" to begin be a valid git revision')
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eprint(f'Found: "{version}"')
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sys.exit(1)
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lockedDepsDict: dict[str, dict[str, str]] = {}
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for pname in depsDict:
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depDict = depsDict[pname]
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version = depDict["version"]
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if "repository" in depDict:
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repository = depDict["repository"]
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strippedRepo = repository[4:]
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eprint(f"Fetching {pname}@{version} ({strippedRepo})")
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command = ["nix-prefetch-git", strippedRepo, version]
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rawRes = subprocess.run(command, check=True, text=True, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL).stdout
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sha256 = json.loads(rawRes)["sha256"]
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lockedDepsDict[pname] = {"version": version, "repository": repository, "sha256": sha256}
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else:
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eprint(f"Fetching {pname}@{version}")
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url = f"https://code.dlang.org/packages/{pname}/{version}.zip"
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command = ["nix-prefetch-url", "--type", "sha256", url]
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sha256 = subprocess.run(command, check=True, text=True, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL).stdout.rstrip()
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lockedDepsDict[pname] = {"version": version, "sha256": sha256}
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print(json.dumps({"dependencies": lockedDepsDict}, indent=2))
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