hydra, cgit and vm-sala on mothership

modules/hydra/jobsets.nix

@@ -0,0 +1,73 @@
+{
+  repoInfoPath,
+  prs,
+  ...
+}: let
+  minutes = 60;
+  hours = 60 * minutes;
+  days = 24 * hours;
+  filterAttrs = pred: set:
+    builtins.listToAttrs (builtins.concatMap (name: let
+      v = set.${name};
+    in
+      if pred name v
+      then [
+        {
+          inherit name;
+          value = v;
+        }
+      ]
+      else []) (builtins.attrNames set));
+  mapAttrs' = f: set:
+    builtins.listToAttrs (map (attr: f attr set.${attr}) (builtins.attrNames set));
+
+  mkJobset = {
+    enabled ? 1,
+    hidden ? false,
+    type ? 1,
+    description ? "",
+    checkinterval ? 5 * minutes,
+    schedulingshares ? 100,
+    enableemail ? false,
+    emailoverride ? "",
+    keepnr ? 1,
+    flake,
+  } @ args: {inherit enabled hidden type description checkinterval schedulingshares enableemail emailoverride keepnr flake;};
+
+  mkSpec = contents: let
+    escape = builtins.replaceStrings [''"''] [''\"''];
+    contentsJson = builtins.toJSON contents;
+  in
+    builtins.derivation {
+      name = "spec.json";
+      system = "x86_64-linux";
+      preferLocalBuild = true;
+      allowSubstitutes = false;
+      builder = "/bin/sh";
+      args = [
+        (builtins.toFile "builder.sh" ''
+          echo "${escape contentsJson}" > $out
+        '')
+      ];
+    };
+
+  repo = builtins.fromJSON (builtins.readFile repoInfoPath);
+
+  pullRequests = builtins.fromJSON (builtins.readFile prs);
+  pullRequestsToBuild = filterAttrs (n: pr: pr.head.repo != null && pr.head.repo.owner.login == repo.owner && pr.head.repo.name == repo.name) pullRequests;
+in {
+  jobsets = mkSpec ({
+      master = mkJobset {
+        description = "${repo.name}'s master branch";
+        flake = "git+ssh://git@github.com/${repo.owner}/${repo.name}?ref=master";
+      };
+    }
+    // (mapAttrs' (n: pr: {
+        name = "pullRequest_${n}";
+        value = mkJobset {
+          description = pr.title;
+          flake = "git+ssh://git@github.com/${repo.owner}/${repo.name}?ref=${pr.head.ref}";
+        };
+      })
+      pullRequests));
+}