caddy: 2.6.0 -> 2.6.1

pkgs/servers/caddy/default.nix

@@ -1,6 +1,13 @@
-{ lib, buildGoModule, fetchFromGitHub, nixosTests }:
+{ lib
+, buildGoModule
+, fetchFromGitHub
+, nixosTests
+, caddy
+, testers
+, installShellFiles
+}:
 let
-  version = "2.6.0";
+  version = "2.6.1";
   dist = fetchFromGitHub {
     owner = "caddyserver";
     repo = "dist";
@@ -12,25 +19,46 @@ buildGoModule {
   pname = "caddy";
   inherit version;
 
-  subPackages = [ "cmd/caddy" ];
-
   src = fetchFromGitHub {
     owner = "caddyserver";
     repo = "caddy";
     rev = "v${version}";
-    sha256 = "sha256-BZGfYpQM5e+/LrGqs1oms/vOp9q4UY/ZyDODEsi/wl8=";
+    sha256 = "sha256-Z8MiMhXH1er+uYvmDQiamF/jSxHbTMwjo61qbH0ioEo=";
   };
 
   vendorSha256 = "sha256-6UTErIPB/z4RfndPSLKFJDFweLB3ax8WxEDA+3G5asI=";
 
+  patches = [
+    ./inject_version.diff
+  ];
+
+  subPackages = [ "cmd/caddy" ];
+
+  ldflags = [
+    "-s" "-w"
+    "-X github.com/caddyserver/caddy/v2.ShortVersion=${version}"
+  ];
+
+  nativeBuildInputs = [ installShellFiles ];
+
   postInstall = ''
     install -Dm644 ${dist}/init/caddy.service ${dist}/init/caddy-api.service -t $out/lib/systemd/system
 
     substituteInPlace $out/lib/systemd/system/caddy.service --replace "/usr/bin/caddy" "$out/bin/caddy"
     substituteInPlace $out/lib/systemd/system/caddy-api.service --replace "/usr/bin/caddy" "$out/bin/caddy"
+
+    installShellCompletion --cmd metal \
+      --bash <($out/bin/caddy completion bash) \
+      --zsh <($out/bin/caddy completion zsh)
   '';
 
-  passthru.tests = { inherit (nixosTests) caddy; };
+  passthru.tests = {
+    inherit (nixosTests) caddy;
+    version = testers.testVersion {
+      command = "${caddy}/bin/caddy version";
+      package = caddy;
+    };
+  };
 
   meta = with lib; {
     homepage = "https://caddyserver.com";

pkgs/servers/caddy/inject_version.diff

@@ -0,0 +1,15 @@
+diff --git a/caddy.go b/caddy.go
+index 584865bd..082b9b6c 100644
+--- a/caddy.go
++++ b/caddy.go
+@@ -840,7 +840,10 @@ func InstanceID() (uuid.UUID, error) {
+ // and https://github.com/golang/go/issues/50603.
+ //
+ // This function is experimental and subject to change or removal.
++var ShortVersion = "(devel)"
++
+ func Version() (simple, full string) {
++	return ShortVersion, ShortVersion
+ 	// the currently-recommended way to build Caddy involves
+ 	// building it as a dependency so we can extract version
+ 	// information from go.mod tooling; once the upstream