nim_lk: init at 20231031

https://git.sr.ht/~ehmry/nim_lk

pkgs/by-name/ni/nim_lk/lock.json

@@ -0,0 +1 @@
+{"depends":[{"method":"fetchzip","packages":["npeg"],"path":"/nix/store/ffkxmjmigfs7zhhiiqm0iw2c34smyciy-source","ref":"1.2.1","rev":"26d62fdc40feb84c6533956dc11d5ee9ea9b6c09","sha256":"0xpzifjkfp49w76qmaylan8q181bs45anmp46l4bwr3lkrr7bpwh","srcDir":"src","url":"https://github.com/zevv/npeg/archive/26d62fdc40feb84c6533956dc11d5ee9ea9b6c09.tar.gz"},{"method":"fetchzip","packages":["preserves"],"path":"/nix/store/nrcpzf9hx70kry3gwhrdzcs3qicjncjh-source","ref":"20231021","rev":"edece399be70818208bf2263c30cb2bcf435bbff","sha256":"0xmw35wmw3a4lja9q4qvlvpxv3xk0hnkjg4fwfw6f3inh6zfiqki","srcDir":"src","url":"https://git.syndicate-lang.org/ehmry/preserves-nim/archive/edece399be70818208bf2263c30cb2bcf435bbff.tar.gz"}]}

pkgs/by-name/ni/nim_lk/package.nix

@@ -0,0 +1,52 @@
+{ lib, buildPackages, nim2Packages, fetchFromSourcehut, openssl }:
+
+nim2Packages.buildNimPackage (finalAttrs: {
+  pname = "nim_lk";
+  version = "20231031";
+  nimBinOnly = true;
+
+  src = fetchFromSourcehut {
+    owner = "~ehmry";
+    repo = "nim_lk";
+    rev = finalAttrs.version;
+    hash = "sha256-dXm3dfXAxgucek19f1KdRShOsJyELPTB32qgGSKId6A=";
+  };
+
+  buildInputs = [ openssl ];
+
+  nimFlags = finalAttrs.passthru.nimFlagsFromLockFile ./lock.json;
+
+  meta = finalAttrs.src.meta // {
+    description = "Generate Nix specific lock files for Nim packages";
+    homepage = "https://git.sr.ht/~ehmry/nim_lk";
+    mainProgram = "nim_lk";
+    license = lib.licenses.bsd3;
+    platforms = lib.platforms.unix;
+    maintainers = with lib.maintainers; [ ehmry ];
+  };
+
+  passthru.nimFlagsFromLockFile = let
+    fetchDependency = let
+      methods = {
+        fetchzip = { url, sha256, ... }:
+          buildPackages.fetchzip {
+            name = "source";
+            inherit url sha256;
+          };
+        git = { fetchSubmodules, leaveDotGit, rev, sha256, url, ... }:
+          buildPackages.fetchgit {
+            inherit fetchSubmodules leaveDotGit rev sha256 url;
+          };
+      };
+    in attrs@{ method, ... }: methods.${method} attrs // attrs;
+  in lockFile:
+  with builtins;
+  lib.pipe lockFile [
+    readFile
+    fromJSON
+    (getAttr "depends")
+    (map fetchDependency)
+    (map ({ outPath, srcDir, ... }: ''--path:"${outPath}/${srcDir}"''))
+  ];
+
+})