witr: init at 0.1.0

pkgs/by-name/wi/witr/package.nix

@@ -0,0 +1,56 @@
+{
+  fetchFromGitHub,
+  buildGoModule,
+  installShellFiles,
+  lib,
+}:
+buildGoModule (finalAttrs: {
+  pname = "witr";
+  version = "0.1.0";
+
+  src = fetchFromGitHub {
+    owner = "pranshuparmar";
+    repo = "witr";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-RA3dTTprYL6kmSiADqm2uR2QbFebpKPoOE3oyfGiNuI=";
+    # populate values that require us to use git. By doing this in postFetch we
+    # can delete .git afterwards and maintain better reproducibility of the src.
+    leaveDotGit = true;
+    postFetch = ''
+      cd "$out"
+      git rev-parse HEAD > $out/COMMIT
+      date -u -d "@$(git log -1 --pretty=%ct)" "+%Y-%m-%dT%H:%M:%SZ" > $out/SOURCE_DATE_EPOCH
+      find "$out" -name .git -print0 | xargs -0 rm -rf
+    '';
+  };
+
+  vendorHash = null;
+
+  # temporary, until go 1.25.5 is merged from staging-next to master
+  postPatch = ''
+    substituteInPlace go.mod --replace-fail 'go 1.25.5' 'go 1.25.4'
+  '';
+
+  ldflags = [
+    "-X main.version=v${finalAttrs.version}"
+  ];
+
+  preBuild = ''
+    ldflags+=" -X=main.commit=$(cat COMMIT)"
+    ldflags+=" -X=main.buildDate=$(cat SOURCE_DATE_EPOCH)"
+  '';
+
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = ''
+    installManPage docs/witr.1
+  '';
+
+  meta = {
+    description = "Command-line tool to find out why processes are running";
+    homepage = "https://github.com/pranshuparmar/witr";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ thegu5 ];
+    mainProgram = "witr";
+  };
+})