Help with nix-update: `/nix/store//default.nix is not in /nix/store/-source`

PopeRigby · April 11, 2025, 9:08pm

I asked this question on their issue tracker, but didn’t get any response, so I was wondering if someone here could help me.

github.com/Mic92/nix-update

`/nix/store//default.nix is not in /nix/store/-source`

opened 01:32AM - 02 Feb 25 UTC

poperigby

I'm attempting to run `nix-update --flake` on multiple different packages in my …[repository](https://codeberg.org/PopeRigby/openmw-nix), but all of them are failing with an error similar to in the title. Here's an example: ```bash $ nix-update --flake umo $ nix eval --json --impure --expr ' let inherit (builtins) getFlake stringLength substring; currentSystem = builtins.currentSystem; flake = getFlake "/home/cassidy/Projects/openmw-nix"; pkg = flake.packages.${currentSystem}."umo" or flake."umo"; inherit (flake) outPath; outPathLen = stringLength outPath; sanitizePosition = { file, ... }@pos: assert substring 0 outPathLen file != outPath -> throw "${file} is not in ${outPath}"; pos // { file = "/home/cassidy/Projects/openmw-nix" + substring outPathLen (stringLength file - outPathLen) file; }; positionFromMeta = pkg: let parts = builtins.match "(.*):([0-9]+)" pkg.meta.position; in { file = builtins.elemAt parts 0; line = builtins.fromJSON (builtins.elemAt parts 1); }; raw_version_position = sanitizePosition (builtins.unsafeGetAttrPos "version" pkg); position = if pkg ? isRubyGem then raw_version_position else if pkg ? isPhpExtension then raw_version_position else if (builtins.unsafeGetAttrPos "src" pkg) != null then sanitizePosition (builtins.unsafeGetAttrPos "src" pkg) else sanitizePosition (positionFromMeta pkg); in { name = pkg.name; old_version = pkg.version or (builtins.parseDrvName pkg.name).version; inherit raw_version_position; filename = position.file; line = position.line; urls = pkg.src.urls or null; url = pkg.src.url or null; rev = pkg.src.rev or null; tag = pkg.src.tag or null; hash = pkg.src.outputHash or null; go_modules = pkg.goModules.outputHash or null; go_modules_old = pkg.go-modules.outputHash or null; cargo_deps = pkg.cargoDeps.outputHash or null; cargo_vendor_deps = pkg.cargoDeps.vendorStaging.outputHash or null; raw_cargo_lock = if pkg ? cargoDeps.lockFile then let inherit (pkg.cargoDeps) lockFile; res = builtins.tryEval (sanitizePosition { file = toString lockFile; }); in if res.success then res.value.file else false else null; composer_deps = pkg.composerVendor.outputHash or null; composer_deps_old = pkg.composerRepository.outputHash or null; npm_deps = pkg.npmDeps.outputHash or null; pnpm_deps = pkg.pnpmDeps.outputHash or null; yarn_deps = pkg.yarnOfflineCache.outputHash or null; yarn_deps_old = pkg.offlineCache.outputHash or null; maven_deps = pkg.fetchedMavenDeps.outputHash or null; mix_deps = pkg.mixFodDeps.outputHash or null; tests = builtins.attrNames (pkg.passthru.tests or {}); has_update_script = false; src_homepage = pkg.src.meta.homepage or null; changelog = pkg.meta.changelog or null; maintainers = pkg.meta.maintainers or null; }' --extra-experimental-features 'flakes nix-command' error: … while evaluating attribute 'filename' at «string»:36:3: 35| inherit raw_version_position; 36| filename = position.file; | ^ 37| line = position.line; … in the condition of the assert statement at «string»:11:9: 10| sanitizePosition = { file, ... }@pos: 11| assert substring 0 outPathLen file != outPath | ^ 12| -> throw "${file} is not in ${outPath}"; (stack trace truncated; use '--show-trace' to show the full, detailed trace) error: /nix/store/zc6fpbj2f3k52mpk2c4qsi6yibirfs1w-wfyl8npr0bbvf3sbawfinjf247ymjlyw-source/packages/umo/default.nix is not in /nix/store/wfyl8npr0bbvf3sbawfinjf247ymjlyw-source Traceback (most recent call last): File "/nix/store/mlgvngx5fbvchnqqv3yxpb5qpdqhvajg-nix-update-1.9.0/bin/.nix-update-wrapped", line 9, in <module> sys.exit(main()) ^^^^^^ File "/nix/store/mlgvngx5fbvchnqqv3yxpb5qpdqhvajg-nix-update-1.9.0/lib/python3.12/site-packages/nix_update/__init__.py", line 319, in main package = update(options) ^^^^^^^^^^^^^^^ File "/nix/store/mlgvngx5fbvchnqqv3yxpb5qpdqhvajg-nix-update-1.9.0/lib/python3.12/site-packages/nix_update/update.py", line 483, in update package = eval_attr(opts) ^^^^^^^^^^^^^^^ File "/nix/store/mlgvngx5fbvchnqqv3yxpb5qpdqhvajg-nix-update-1.9.0/lib/python3.12/site-packages/nix_update/eval.py", line 228, in eval_attr res = run(cmd) ^^^^^^^^ File "/nix/store/mlgvngx5fbvchnqqv3yxpb5qpdqhvajg-nix-update-1.9.0/lib/python3.12/site-packages/nix_update/utils.py", line 38, in run return subprocess.run( ^^^^^^^^^^^^^^^ File "/nix/store/qrc496n6fsqp4p5m5h8wmw5d5jwyw5mr-python3-3.12.8/lib/python3.12/subprocess.py", line 571, in run raise CalledProcessError(retcode, process.args, subprocess.CalledProcessError: Command '['nix', 'eval', '--json', '--impure', '--expr', '\nlet\n \n inherit (builtins) getFlake stringLength substring;\n currentSystem = builtins.currentSystem;\n flake = getFlake "/home/cassidy/Projects/openmw-nix";\n pkg = flake.packages.${currentSystem}."umo" or flake."umo";\n inherit (flake) outPath;\n outPathLen = stringLength outPath;\n sanitizePosition = { file, ... }@pos:\n assert substring 0 outPathLen file != outPath\n -> throw "${file} is not in ${outPath}";\n pos // { file = "/home/cassidy/Projects/openmw-nix" + substring outPathLen (stringLength file - outPathLen) file; };\n\n positionFromMeta = pkg: let\n parts = builtins.match "(.*):([0-9]+)" pkg.meta.position;\n in {\n file = builtins.elemAt parts 0;\n line = builtins.fromJSON (builtins.elemAt parts 1);\n };\n\n raw_version_position = sanitizePosition (builtins.unsafeGetAttrPos "version" pkg);\n\n position = if pkg ? isRubyGem then\n raw_version_position\n else if pkg ? isPhpExtension then\n raw_version_position\n else if (builtins.unsafeGetAttrPos "src" pkg) != null then\n sanitizePosition (builtins.unsafeGetAttrPos "src" pkg)\n else\n sanitizePosition (positionFromMeta pkg);\nin {\n name = pkg.name;\n old_version = pkg.version or (builtins.parseDrvName pkg.name).version;\n inherit raw_version_position;\n filename = position.file;\n line = position.line;\n urls = pkg.src.urls or null;\n url = pkg.src.url or null;\n rev = pkg.src.rev or null;\n tag = pkg.src.tag or null;\n hash = pkg.src.outputHash or null;\n go_modules = pkg.goModules.outputHash or null;\n go_modules_old = pkg.go-modules.outputHash or null;\n cargo_deps = pkg.cargoDeps.outputHash or null;\n cargo_vendor_deps = pkg.cargoDeps.vendorStaging.outputHash or null;\n raw_cargo_lock =\n if pkg ? cargoDeps.lockFile then\n let\n inherit (pkg.cargoDeps) lockFile;\n res = builtins.tryEval (sanitizePosition {\n file = toString lockFile;\n });\n in\n if res.success then res.value.file else false\n else\n null;\n composer_deps = pkg.composerVendor.outputHash or null;\n composer_deps_old = pkg.composerRepository.outputHash or null;\n npm_deps = pkg.npmDeps.outputHash or null;\n pnpm_deps = pkg.pnpmDeps.outputHash or null;\n yarn_deps = pkg.yarnOfflineCache.outputHash or null;\n yarn_deps_old = pkg.offlineCache.outputHash or null;\n maven_deps = pkg.fetchedMavenDeps.outputHash or null;\n mix_deps = pkg.mixFodDeps.outputHash or null;\n tests = builtins.attrNames (pkg.passthru.tests or {});\n has_update_script = false;\n src_homepage = pkg.src.meta.homepage or null;\n changelog = pkg.meta.changelog or null;\n maintainers = pkg.meta.maintainers or null;\n}', '--extra-experimental-features', 'flakes nix-command']' returned non-zero exit status 1. ``` I've checked, and `default.nix` definitely exists at `/nix/store/wfyl8npr0bbvf3sbawfinjf247ymjlyw-source/packages/umo/default.nix`, so I don't know why It can't find it. The repository is using [snowfall-lib](https://github.com/snowfallorg/lib), which requires you to put packages in `packages/<package>/default.nix`. Could that have something to do with it?

Help with nix-update: `/nix/store/*/default.nix is not in /nix/store/*-source`

Help with nix-update: `/nix/store//default.nix is not in /nix/store/-source`