add hydra build code

default.nix

@@ -0,0 +1,11 @@
+(import (
+  let
+    lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+  in
+  fetchTarball {
+    url =
+      lock.nodes.flake-compat.locked.url
+        or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
+    sha256 = lock.nodes.flake-compat.locked.narHash;
+  }
+) { src = ./.; }).defaultNix

hydra/default.nix

@@ -0,0 +1 @@
+{ chir-rs }: (import chir-rs).hydraJobs

hydra/jobsets.nix

@@ -0,0 +1,81 @@
+{
+  prsJSON,
+  nixpkgs,
+}:
+let
+  pkgs = import nixpkgs { };
+  prs = builtins.fromJSON (builtins.readFile prsJSON);
+  jobsets =
+    (builtins.listToAttrs (
+      pkgs.lib.attrsets.mapAttrsToList (_: info: {
+        name = "pr${toString info.number}";
+        value = {
+          enabled = info.state == "open";
+          hidden = info.state != "open";
+          description = "PR ${toString info.number}: ${info.title}";
+          nixexprinput = "chir-rs";
+          nixexprpath = "hydra/default.nix";
+          checkinterval = 3600;
+          schedulingshares = 100;
+          enableemail = false;
+          emailoverride = "";
+          keepnr = 1;
+          inputs = {
+            chir-rs = {
+              type = "git";
+              value = "${info.head.repo.clone_url} ${info.head.ref}";
+              emailresponsible = false;
+            };
+            gitea_status_repo = {
+              type = "string";
+              value = "chir-rs";
+            };
+            gitea_repo_owner = {
+              type = "string";
+              value = info.head.repo.owner.login;
+            };
+            gitea_repo_name = {
+              type = "string";
+              value = info.head.repo.name;
+            };
+          };
+        };
+      }) prs
+    ))
+    // {
+      chir-rs = {
+        enabled = 1;
+        hidden = false;
+        description = "Current nixos config";
+        nixexprinput = "chir-rs";
+        nixexprpath = "hydra/default.nix";
+        checkinterval = 0;
+        schedulingshares = 100;
+        enableemail = false;
+        emailoverride = "";
+        keepnr = 1;
+        inputs = {
+          chir-rs = {
+            type = "git";
+            value = "https://git.chir.rs/darkkirb/chir-rs main";
+            emailresponsible = false;
+          };
+          gitea_status_repo = {
+            type = "string";
+            value = "chir-rs";
+          };
+          gitea_repo_owner = {
+            type = "string";
+            value = "Darkkirb";
+          };
+          gitea_repo_name = {
+            type = "string";
+            value = "chir-rs";
+          };
+        };
+      };
+    };
+in
+{
+  jobsets = pkgs.writeText "jobsets.json" (builtins.toJSON jobsets);
+}

hydra/spec.json

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+{
+    "enabled": 1,
+    "hidden": false,
+    "description": "jobsets",
+    "nixexprinput": "chir-rs",
+    "nixexprpath": "hydra/jobsets.nix",
+    "checkinterval": 3600,
+    "schedulingshares": 100,
+    "enableemail": false,
+    "emailoverride": "",
+    "keepnr": 1,
+    "inputs": {
+        "chir-rs": {
+            "type": "git",
+            "value": "https://git.chir.rs/darkkirb/chir-rs.git main",
+            "emailresponsible": false
+        },
+        "nixpkgs": {
+            "type": "git",
+            "value": "https://github.com/NixOS/nixpkgs.git",
+            "emailresponsible": false
+        },
+        "prsJSON": {
+            "type": "giteapulls",
+            "value": "git.chir.rs darkkirb chir-rs",
+            "emailresponsible": false
+        },
+        "gitea_status_repo": {
+            "type": "string",
+            "value": "chir-rs"
+        },
+        "gitea_repo_owner": {
+            "type": "string",
+            "value": "darkkirb"
+        },
+        "gitea_repo_name": {
+            "type": "string",
+            "value": "chir-rs"
+        }
+    }
+}