NotAShelf
a22a2235c5
Adds a package, and a dev shell for Discorss. `nix run .#` and `nix develop` will be allowed in the current mechanism, but direnv users can simply use `direnv allow` to enter a shell directly.
53 lines
2 KiB
Nix
53 lines
2 KiB
Nix
{
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lib,
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stdenvNoCC,
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makeWrapper,
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python312,
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...
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}:
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stdenvNoCC.mkDerivation (finalAttrs: {
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pname = "discorss";
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version = "0.0.1";
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# Point to the repository root for the source. `builtins.path` is used to construct
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# a pure and reproducible source path that doesn't change based on the name
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# of the directory our source code lives in. Alternative to this is to just use it
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# directly, as follows:
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# `src = ../.;`
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src = builtins.path {
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path = ../.;
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name = "discorss"; # the directory will always be named discorss in the eyes of Nix
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filter = lib.cleanSourceFilter; # avoid copying junk files and vsc dirs to the store
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};
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# programs and libraries *used at build-time* that, if they are a compiler or similar tool, produce
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# code to run at run-time. In other words, tools used to build the new derivation
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# Alternative is buildInputs, which includes programs and libraries used by the new derivation at run-time
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nativeBuildInputs = [makeWrapper];
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# Normally propagatedBuildInputs get, well, propagated to the final build. This is not the
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# case for s since we omit a handful of shell hooks that would handle it for us. We can
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# still use propagatedBuildInputs to remain close to the standard, but we will have to
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# pass it to the wrapper manually.
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propagatedBuildInputs = [
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# Create a python wrapper with the dependencies that we need.
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# This will produce a /nix/store/some-hash-python/bin/python3 that has the modules
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# our program needs.
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(python312.withPackages (ps: with ps; [feedparser requests]))
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];
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dontUnpack = true; # source is not an archive
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dontConfigure = true; # there is no configure script
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dontPatch = true; # we are building from source, patches are redundant
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buildPhase = ''
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runHook preBuild
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# Create a wrapper for Discorss with the specific version of Python (with dependencies)
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# added to its PATH.
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makeWrapper $src/discorss.py $out/bin/discorss \
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--prefix PATH : "${lib.makeBinPath finalAttrs.propagatedBuildInputs}"
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runHook postBuild
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'';
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})
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