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-rw-r--r--ops/modules/git-serving.nix54
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+# Configures public git-serving infrastructure for TVL, this involves:
+#
+# 1. cgit (running at code.tvl.fyi) for web views of the repository
+# 2. josh (for cloning the repository and its distinct subtrees)
+#
+# We also run Sourcegraph for browsing the repository, but this is
+# currently configured in a separate module
+# (//ops/modules/sourcegraph.nix)
+#
+# TODO(tazjin): Move //web/cgit-taz configuration in here instead.
+{ config, depot, lib, pkgs, ... }:
+
+let
+  cfg = config.services.depot.git-serving;
+in {
+  options.services.depot.git-serving = with lib; {
+    enable = mkEnableOption "Enable cgit & josh configuration";
+
+    joshPort = mkOption {
+      description = "Port on which josh should listen";
+      type = types.int;
+      default = 5674;
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    # Run cgit for the depot. The onion here is nginx(thttpd(cgit)).
+    systemd.services.cgit = {
+      wantedBy = [ "multi-user.target" ];
+      script = "${depot.web.cgit-taz}/bin/cgit-launch";
+
+      serviceConfig = {
+        Restart = "on-failure";
+        User = "git";
+        Group = "git";
+      };
+    };
+
+    # Run josh for the depot.
+    systemd.services.josh = {
+      description = "josh - partial cloning of monorepos";
+      wantedBy = [ "multi-user.target" ];
+      path = [ pkgs.git pkgs.bash ];
+
+      serviceConfig = {
+        DynamicUser = true;
+        StateDirectory = "josh";
+        Restart = "always";
+        ExecStart = "${depot.third_party.josh}/bin/josh-proxy --no-background --local /var/lib/josh --port ${toString cfg.joshPort} --remote https://cl.tvl.fyi/";
+      };
+    };
+
+  };
+}