ci: Add dpm.

Author: da-tanabe

.circleci/config.yml

@@ -25,6 +25,14 @@ commands:
           key: daml-{{ checksum ".circleci/install-daml" }}
           paths:
             - /home/circleci/.daml
+      - restore_cache:
+          key: daml-{{ checksum ".circleci/install-dpm" }}
+      - run:
+          command: .circleci/install-dpm
+      - save_cache:
+          key: daml-{{ checksum ".circleci/install-dpm" }}
+          paths:
+            - /home/circleci/.dpm
       - restore_cache:
           key: python-deps-{{ checksum "poetry.lock" }}-<<parameters.python_version>>
       - run:

.circleci/install-dpm

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+# Copyright (c) 2017-2025 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+set -xeuo pipefail
+
+dpm install 3.4.9

.envrc

@@ -1,2 +1,6 @@
+# Copyright (c) 2017-2025 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
 watch_dir nix
 use flake ./nix
+.circleci/install-dpm

nix/dpm.nix

@@ -0,0 +1,47 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+let
+  dpmPath = "europe-docker.pkg.dev/da-images/public/components/dpm";
+  dpmVersion = "1.0.6";
+  dpmRef = "${dpmPath}:${dpmVersion}";
+
+  dpmHashes = {
+    "x86_64-linux" = "sha256-WFly1i2QRKDV5OIAOaguBrlyTO9zb5MBvZdZy3aZqwo=";
+    "aarch64-linux" = "sha256-jEYFr7q1EXa1NUF25af39E+ZUqoWLvufIGDdrCnVi60=";
+    "x86_64-darwin" = "sha256-nUmd3isAUmoehdeqSiak7StA8R2s+tHIvbWI/6PEg1w=";
+    "aarch64-darwin" = "sha256-WCk/5SYrf9/GSibhqNq24JdGXODLrlp+hlFfn+d45kQ=";
+  };
+  dpmHash = dpmHashes.${pkgs.system} or (throw "Unsupported system: ${pkgs.system}");
+
+  ociPlatforms = {
+    "x86_64-linux" = "linux/amd64";
+    "aarch64-linux" = "linux/arm64";
+    "x86_64-darwin" = "darwin/amd64";
+    "aarch64-darwin" = "darwin/arm64";
+  };
+  ociPlatform = ociPlatforms.${pkgs.system} or (throw "Unsupported system: ${pkgs.system}");
+in
+pkgs.stdenv.mkDerivation {
+  pname = "dpm";
+  version = dpmVersion;
+
+  src = pkgs.stdenv.mkDerivation {
+    name = "dpm-pull-${dpmRef}.${ociPlatform}";
+
+    nativeBuildInputs = [ pkgs.oras pkgs.cacert ];
+
+    buildCommand = ''
+      set -e
+      echo "Pulling dpm component from ${dpmRef} for platform ${ociPlatform}"
+      oras pull --platform ${ociPlatform} -o $out ${dpmRef}
+    '';
+    outputHashMode = "recursive";
+    outputHashAlgo = "sha256";
+    outputHash = dpmHash;
+  };
+
+  installPhase = ''
+    mkdir -p $out/bin
+    install -Dm755 $src/dpm $out/bin/dpm
+  '';
+}

nix/overlays.nix

@@ -3,5 +3,6 @@
   canton-3 = super.callPackage ./canton-3/default.nix {};
   daml-protos-2 = super.callPackage ./daml-protos-2/default.nix {};
   daml-protos-3 = super.callPackage ./daml-protos-3/default.nix {};
+  dpm = super.callPackage ./dpm.nix {};
   protopack = super.callPackage ./protopack/default.nix {};
 })]

nix/shell.nix

@@ -9,6 +9,7 @@ let
 
   requiredPackages = with pkgs; ([
     # these packages are required both in CI and for local development
+    dpm
     glibcLocales
     jq
     go