buildkite-agent2: remove package

The latest 2.x release was in Jan 2018.

pkgs/development/tools/continuous-integration/buildkite-agent/2.x.nix

@@ -1,12 +0,0 @@
-{ callPackage, fetchFromGitHub, ... } @ args:
-
-callPackage ./generic.nix (args // rec {
-  src = fetchFromGitHub {
-    owner = "buildkite";
-    repo = "agent";
-    rev = "v${version}";
-    sha256 = "07065hhhb418w5qlqnyiap45r59paysysbwz1l7dmaw3j4q8m8rg";
-  };
-  version = "2.6.10";
-  hasBootstrapScript = true;
-})

pkgs/development/tools/continuous-integration/buildkite-agent/3.x.nix

@@ -1,15 +0,0 @@
-{ bash, callPackage, fetchFromGitHub, ... } @ args:
-
-callPackage ./generic.nix (args // rec {
-  src = fetchFromGitHub {
-    owner = "buildkite";
-    repo = "agent";
-    rev = "v${version}";
-    sha256 = "0a7x919kxnpdn0pnhc5ilx1z6ninx8zgjvsd0jcg4qwh0qqp5ppr";
-  };
-  version = "3.17.0";
-  hasBootstrapScript = false;
-  postPatch = ''
-    substituteInPlace bootstrap/shell/shell.go --replace /bin/bash ${bash}/bin/bash
-  '';
-})

pkgs/development/tools/continuous-integration/buildkite-agent/default.nix

@@ -0,0 +1,48 @@
+{ fetchFromGitHub, stdenv, buildGoPackage,
+  makeWrapper, coreutils, git, openssh, bash, gnused, gnugrep }:
+buildGoPackage rec {
+  name = "buildkite-agent-${version}";
+  version = "3.17.0";
+
+  goPackagePath = "github.com/buildkite/agent";
+
+  src = fetchFromGitHub {
+    owner = "buildkite";
+    repo = "agent";
+    rev = "v${version}";
+    sha256 = "0a7x919kxnpdn0pnhc5ilx1z6ninx8zgjvsd0jcg4qwh0qqp5ppr";
+  };
+  postPatch = ''
+    substituteInPlace bootstrap/shell/shell.go --replace /bin/bash ${bash}/bin/bash
+  '';
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  # on Linux, the TMPDIR is /build which is the same prefix as this package
+  # remove once #35068 is merged
+  noAuditTmpdir = stdenv.isLinux;
+
+  postInstall = ''
+    # Fix binary name
+    mv $bin/bin/{agent,buildkite-agent}
+
+    # These are runtime dependencies
+    wrapProgram $bin/bin/buildkite-agent \
+      --prefix PATH : '${stdenv.lib.makeBinPath [ openssh git coreutils gnused gnugrep ]}'
+  '';
+
+  meta = with stdenv.lib; {
+    description = "Build runner for buildkite.com";
+    longDescription = ''
+      The buildkite-agent is a small, reliable, and cross-platform build runner
+      that makes it easy to run automated builds on your own infrastructure.
+      It’s main responsibilities are polling buildkite.com for work, running
+      build jobs, reporting back the status code and output log of the job,
+      and uploading the job's artifacts.
+    '';
+    homepage = https://buildkite.com/docs/agent;
+    license = licenses.mit;
+    maintainers = with maintainers; [ pawelpacana zimbatm rvl ];
+    platforms = platforms.unix;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -9768,9 +9768,9 @@ in
 
   buck = callPackage ../development/tools/build-managers/buck { };
 
-  buildkite-agent = buildkite-agent2;
-  buildkite-agent2 = callPackage ../development/tools/continuous-integration/buildkite-agent/2.x.nix { };
-  buildkite-agent3 = callPackage ../development/tools/continuous-integration/buildkite-agent/3.x.nix { };
+  buildkite-agent = buildkite-agent3;
+  buildkite-agent2 = throw "pkgs.buildkite-agent2 has been discontinued. Please use pkgs.buildkite-agent (v3.x)";
+  buildkite-agent3 = callPackage ../development/tools/continuous-integration/buildkite-agent { };
 
   libbpf = callPackage ../os-specific/linux/libbpf { };