add std flake and tullia

flake.nix

@@ -0,0 +1,39 @@
+{
+  inputs = {
+    nixpkgs.follows = "tullia/nixpkgs";
+    std.follows = "tullia/std";
+    tullia.url = github:input-output-hk/tullia;
+  };
+
+  outputs = {
+    self,
+    std,
+    tullia,
+    ...
+  } @ inputs:
+    std.growOn {
+      inherit inputs;
+      cellsFrom = nix/cells;
+      cellBlocks = [
+        (std.functions "library")
+        (std.functions "hydraJobs")
+        (tullia.tasks "pipelines")
+        (std.functions "actions")
+      ];
+    }
+    (
+      tullia.fromStd {
+        actions = std.harvest self ["cloud" "actions"];
+        tasks = std.harvest self ["automation" "pipelines"];
+      }
+    )
+    {
+      hydraJobs = std.harvest self ["automation" "hydraJobs"];
+    };
+
+  nixConfig = {
+    extra-substituters = ["https://cache.iog.io"];
+    extra-trusted-public-keys = ["hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ="];
+    allow-import-from-derivation = true;
+  };
+}

nix/cells/automation/hydraJobs.nix

@@ -0,0 +1,9 @@
+{
+  cell,
+  inputs,
+}:
+
+import "${inputs.self}/release.nix" {
+  smash = inputs.self;
+  supportedSystems = [inputs.nixpkgs.system];
+}

nix/cells/automation/pipelines.nix

@@ -0,0 +1,29 @@
+{
+  inputs,
+  cell,
+}: {
+  ci = {config, lib, ...}: {
+    preset = {
+      nix.enable = true;
+
+      github.ci = {
+        # Tullia tasks can run locally or on Cicero.
+        # When no facts are present we know that we are running locally and vice versa.
+        # When running locally, the current directory is already bind-mounted into the container,
+        # so we don't need to fetch the source from GitHub and we don't want to report a GitHub status.
+        enable = config.actionRun.facts != {};
+        repository = "input-output-hk/smash";
+        revision = config.preset.github.lib.readRevision inputs.cells.cloud.library.actionCiInputName null;
+      };
+    };
+
+    command.text = config.preset.github.status.lib.reportBulk {
+      bulk.text = "nix eval .#hydraJobs --apply __attrNames --json | nix-systems -i";
+      each.text = ''nix build -L .#hydraJobs."$1".required'';
+      skippedDescription = lib.escapeShellArg "No nix builder available for this system";
+    };
+
+    memory = 1024 * 8;
+    nomad.resources.cpu = 10000;
+  };
+}

nix/cells/cloud/actions.nix

@@ -0,0 +1,23 @@
+{
+  cell,
+  inputs,
+}: {
+  "smash/ci" = {
+    task = "ci";
+    io = ''
+      // This is a CUE expression that defines what events trigger a new run of this action.
+      // There is no documentation for this yet. Ask SRE if you have trouble changing this.
+
+      let github = {
+        #input: "${cell.library.actionCiInputName}"
+        #repo: "input-output-hk/smash"
+      }
+
+      #lib.merge
+      #ios: [
+        #lib.io.github_push & github,
+        { #lib.io.github_pr, github, #target_default: false },
+      ]
+    '';
+  };
+}

nix/cells/cloud/library.nix

@@ -0,0 +1,6 @@
+{
+  inputs,
+  cell,
+}: {
+  actionCiInputName = "GitHub event";
+}

nix/default.nix

@@ -7,7 +7,9 @@ let
   sources = import ./sources.nix { inherit pkgs; }
     // sourcesOverride;
   iohkNix = import sources.iohk-nix {};
-  haskellNix = import sources."haskell.nix" {};
+  haskellNix = import sources."haskell.nix" {
+    pkgs = import iohkNix.sources.nixpkgs { inherit system; };
+  };
   nixpkgs = haskellNix.sources.nixpkgs-2105;
 
   # for inclusion in pkgs:

release.nix

@@ -30,7 +30,10 @@
 , sourcesOverride ? {}
 
 # Import pkgs, including IOHK common nix lib
-, pkgs ? import ./nix { inherit sourcesOverride; }
+, pkgs ? import ./nix {
+  inherit sourcesOverride;
+  system = builtins.head supportedSystems;
+}
 
 }: