refactor hydra, convert features to refs

Signed-off-by: ahuston-0 <aliceghuston@gmail.com>

hydra/jobs.nix

@@ -0,0 +1,10 @@
+{ inputs, outputs }:
+let
+  inherit (inputs.nixpkgs.lib) mapAttrs;
+
+  getCfg = _: cfg: cfg.config.system.build.toplevel;
+in
+{
+  hosts = mapAttrs getCfg outputs.nixosConfigurations;
+  formatter = outputs.formatter;
+}

hydra/jobsets.nix

@@ -0,0 +1,158 @@
+{
+  nixpkgs,
+  pulls,
+  branches,
+
+  ...
+}:
+let
+  pkgs = import nixpkgs { };
+
+  makeSpec =
+    contents:
+    builtins.derivation {
+      name = "spec.json";
+      system = "x86_64-linux";
+      preferLocalBuild = true;
+      allowSubstitutes = false;
+      builder = "/bin/sh";
+      args = [
+        (builtins.toFile "builder.sh" ''
+          echo "$contents" > $out
+        '')
+      ];
+      contents = builtins.toJSON contents;
+    };
+
+  prs = builtins.fromJSON (builtins.readFile pulls);
+  refs = builtins.fromJSON (builtins.readFile refs);
+  repo = "ahuston-0/nix-dotfiles-hydra";
+
+  makeJob =
+    {
+      schedulingshares ? 10,
+      keepnr ? 3,
+      description,
+      flake,
+    }:
+    {
+      inherit
+        description
+        flake
+        schedulingshares
+        keepnr
+        ;
+      enabled = 1;
+      type = 1;
+      hidden = false;
+      checkinterval = 300; # every 6 months
+      enableemail = false;
+      emailoverride = "";
+    };
+  jobOfRef =
+    name:
+    { ref, ... }:
+    if isNull (builtins.match "^refs/heads/(.*)$" ref) then
+      null
+    else
+      {
+        name = "branch-${name}";
+        value = makeJob {
+          description = "Branch ${name}";
+          flake = "git+ssh://git@github.com/${repo}?ref=${ref}";
+        };
+      };
+  jobOfPR = id: info: {
+    name = "pr-${id}";
+    value = makeJob {
+      description = "PR ${id}: ${info.title}";
+      flake = "git+ssh://git@github.com/${info.head.repo.full_name}?ref=${info.head.ref}";
+    };
+  };
+  attrsToList = l: builtins.attrValues (builtins.mapAttrs (name: value: { inherit name value; }) l);
+  readJSONFile = f: builtins.fromJSON (builtins.readFile f);
+  mapFilter = f: l: builtins.filter (x: !(isNull x)) (map f l);
+in
+# throwJSON = x: throw (builtins.toJSON x);
+# prJobsets = pkgs.lib.mapAttrs (num: info: {
+#   enabled = 1;
+#   hidden = false;
+#   description = "PR ${num}: ${info.title}";
+#   checkinterval = 60;
+#   schedulingshares = 20;
+#   enableemail = false;
+#   emailoverride = "";
+#   keepnr = 1;
+#   type = 1;
+#   flake = "github:ahuston-0/nix-dotfiles-hydra/pull/${num}/head";
+# }) prs;
+# branchJobsets = pkgs.lib.mapAttrs (num: info: {
+#   enabled = 1;
+#   hidden = false;
+#   description = "PR ${num}: ${info.title}";
+#   checkinterval = 60;
+#   schedulingshares = 20;
+#   enableemail = false;
+#   emailoverride = "";
+#   keepnr = 1;
+#   type = 1;
+#   flake = "github:ahuston-0/nix-dotfiles-hydra/pull/${num}/head";
+# }) branches;
+# updateJobsets = pkgs.lib.mapAttrs (num: info: {
+#   enabled = 1;
+#   hidden = false;
+#   description = "PR ${num}: ${info.title}";
+#   checkinterval = 60;
+#   schedulingshares = 20;
+#   enableemail = false;
+#   emailoverride = "";
+#   keepnr = 1;
+#   type = 1;
+#   flake = "github:ahuston-0/nix-dotfiles-hydra/pull/${num}/head";
+# }) prs;
+# mkFlakeJobset = branch: {
+#   description = "Build ${branch}";
+#   checkinterval = "3600";
+#   enabled = "1";
+#   schedulingshares = 100;
+#   enableemail = false;
+#   emailoverride = "";
+#   keepnr = 3;
+#   hidden = false;
+#   type = 1;
+#   flake = "github:ahuston-0/nix-dotfiles-hydra/tree/${branch}";
+# };
+# desc = prJobsets // {
+#   "main" = mkFlakeJobset "main";
+#   "feature-upsync" = mkFlakeJobset "feature/upsync";
+# };
+# log = {
+#   pulls = prs;
+#   jobsets = desc;
+# };
+{
+  # jobsets = pkgs.runCommand "spec-jobsets.json" { } ''
+  #   cat >$out <<EOF
+  #   ${builtins.toJSON desc}
+  #   EOF
+  #   # This is to get nice .jobsets build logs on Hydra
+  #   cat >tmp <<EOF
+  #   ${builtins.toJSON log}
+  #   EOF
+  #   ${pkgs.jq}/bin/jq . tmp
+  # '';
+  jobsets = makeSpec (
+    builtins.listToAttrs (map ({ name, value }: jobOfPR name value) (attrsToList (readJSONFile prs)))
+    // builtins.listToAttrs (
+      mapFilter ({ name, value }: jobOfRef name value) (attrsToList (readJSONFile refs))
+    )
+    // {
+      main = makeJob {
+        description = "main";
+        flake = "github:${repo}";
+        keepnr = 10;
+        schedulingshares = 100;
+      };
+    }
+  );
+}

hydra/spec.json

@@ -0,0 +1,35 @@
+{
+  "enabled": 1,
+  "hidden": false,
+  "description": "system flake",
+  "nixexprinput": "nixexpr",
+  "nixexprpath": ".hydra/jobsets.nix",
+  "checkinterval": 20,
+  "schedulingshares": 100,
+  "enableemail": false,
+  "emailoverride": "",
+  "keepnr": 3,
+  "type": 0,
+  "inputs": {
+    "nixexpr": {
+      "value": "https://github.com/ahuston-0/nix-dotfiles-hydra main",
+      "type": "git",
+      "emailresponsible": false
+    },
+    "nixpkgs": {
+      "value": "https://github.com/NixOS/nixpkgs nixos-unstable-small",
+      "type": "git",
+      "emailresponsible": false
+    },
+    "pulls": {
+      "type": "githubpulls",
+      "value": "ahuston-0 nix-dotfiles-hydra",
+      "emailresponsible": false
+    },
+    "branches": {
+      "type": "github_refs",
+      "value": "ahuston-0 nix-dotfiles-hydra heads -",
+      "emailresponsible": false
+    }
+  }
+}