initial commit. after fucking it up once

adyya-pkgs/caddy-custom.nix

@@ -0,0 +1,158 @@
+{
+  lib,
+  buildGoModule,
+  fetchFromGitHub,
+  gnused,
+  installShellFiles,
+  nixosTests,
+  caddy,
+  testers,
+  stdenv,
+}:
+let
+  attrsToModule = map (plugin: plugin.repo);
+  attrsToVersionedModule = map (
+    {
+      repo,
+      version,
+      ...
+    }:
+    lib.escapeShellArg "${repo}@${version}"
+  );
+
+  pname = "caddy";
+  version = "2.8.4";
+
+  dist = fetchFromGitHub {
+    owner = "caddyserver";
+    repo = "dist";
+    rev = "v${version}";
+    hash = "sha256-O4s7PhSUTXoNEIi+zYASx8AgClMC5rs7se863G6w+l0=";
+  };
+
+  src = fetchFromGitHub {
+    owner = "caddyserver";
+    repo = "caddy";
+    rev = "v${version}";
+    hash = "sha256-CBfyqtWp3gYsYwaIxbfXO3AYaBiM7LutLC7uZgYXfkQ=";
+  };
+
+  subPackages = [ "cmd/caddy" ];
+
+  ldflags = [
+    "-s"
+    "-w"
+    "-X github.com/caddyserver/caddy/v2.CustomVersion=${version}"
+  ];
+
+  # matches upstream since v2.8.0
+  tags = [ "nobadger" ];
+
+  nativeBuildInputs = [
+    gnused
+    installShellFiles
+  ];
+
+  postInstall =
+    ''
+      install -Dm644 ${dist}/init/caddy.service ${dist}/init/caddy-api.service -t $out/lib/systemd/system
+
+      substituteInPlace $out/lib/systemd/system/caddy.service \
+        --replace-fail "/usr/bin/caddy" "$out/bin/caddy"
+      substituteInPlace $out/lib/systemd/system/caddy-api.service \
+        --replace-fail "/usr/bin/caddy" "$out/bin/caddy"
+    ''
+    + lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
+      # Generating man pages and completions fail on cross-compilation
+      # https://github.com/NixOS/nixpkgs/issues/308283
+
+      $out/bin/caddy manpage --directory manpages
+      installManPage manpages/*
+
+      installShellCompletion --cmd caddy \
+        --bash <($out/bin/caddy completion bash) \
+        --fish <($out/bin/caddy completion fish) \
+        --zsh <($out/bin/caddy completion zsh)
+    '';
+
+  meta = with lib; {
+    homepage = "https://caddyserver.com";
+    description = "Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS";
+    license = licenses.asl20;
+    mainProgram = "caddy";
+    maintainers = with maintainers; [
+      Br1ght0ne
+      emilylange
+      techknowlogick
+    ];
+  };
+in
+buildGoModule {
+  inherit
+    pname
+    version
+    src
+    subPackages
+    ldflags
+    tags
+    nativeBuildInputs
+    postInstall
+    meta
+    ;
+
+  vendorHash = "sha256-1Api8bBZJ1/oYk4ZGIiwWCSraLzK9L+hsKXkFtk6iVM=";
+
+  passthru = {
+    withPlugins =
+      {
+        caddyModules,
+        vendorHash ? lib.fakeHash,
+      }:
+      buildGoModule {
+        pname = "${caddy.pname}-with-plugins";
+
+        inherit
+          version
+          src
+          subPackages
+          ldflags
+          tags
+          nativeBuildInputs
+          postInstall
+          meta
+          ;
+
+        modBuildPhase = ''
+          for module in ${toString (attrsToModule caddyModules)}; do
+            sed -i "/standard/a _ \"$module\"" ./cmd/caddy/main.go
+          done
+          for plugin in ${toString (attrsToVersionedModule caddyModules)}; do
+            go get $plugin
+          done
+          go mod vendor
+        '';
+
+        modInstallPhase = ''
+          mv -t vendor go.mod go.sum
+          cp -r vendor "$out"
+        '';
+
+        preBuild = ''
+          chmod -R u+w vendor
+          [ -f vendor/go.mod ] && mv -t . vendor/go.{mod,sum}
+          for module in ${toString (attrsToModule caddyModules)}; do
+            sed -i "/standard/a _ \"$module\"" ./cmd/caddy/main.go
+          done
+        '';
+
+        inherit vendorHash;
+      };
+    tests = {
+      inherit (nixosTests) caddy;
+      version = testers.testVersion {
+        command = "${caddy}/bin/caddy version";
+        package = caddy;
+      };
+    };
+  };
+}