1 files changed, 49 insertions, 0 deletions
diff --git a/ops/pipelines/depot.nix b/ops/pipelines/depot.nix
new file mode 100644
index 000000000000..6d9e625e04be
--- /dev/null
+++ b/ops/pipelines/depot.nix
@@ -0,0 +1,49 @@
+# This file configures the primary build pipeline used for the
+# top-level list of depot targets.
+{ depot, pkgs, externalArgs, ... }:
+
+let
+  # Protobuf check step which validates that changes to .proto files
+  # between revisions don't cause backwards-incompatible or otherwise
+  # flawed changes.
+  protoCheck = {
+    command = "${depot.nix.bufCheck}/bin/ci-buf-check";
+    label = ":water_buffalo:";
+  };
+
+  pipeline = depot.nix.buildkite.mkPipeline {
+    headBranch = "refs/heads/canon";
+    drvTargets = depot.ci.targets;
+    additionalSteps = [ protoCheck ];
+
+    parentTargetMap =
+      if (externalArgs ? parentTargetMap)
+      then builtins.fromJSON (builtins.readFile externalArgs.parentTargetMap)
+      else { };
+
+    postBuildSteps = [
+      # After successful builds, create a gcroot for builds on canon.
+      #
+      # This anchors *most* of the depot, in practice it's unimportant
+      # if there is a build race and we get +-1 of the targets.
+      #
+      # Unfortunately this requires a third evaluation of the graph, but
+      # since it happens after :duck: it should not affect the timing of
+      # status reporting back to Gerrit.
+      {
+        label = ":anchor:";
+        branches = "refs/heads/canon";
+        command = ''
+          nix-build -A ci.gcroot --out-link /nix/var/nix/gcroots/depot/canon
+        '';
+      }
+    ];
+  };
+
+  drvmap = depot.nix.buildkite.mkDrvmap depot.ci.targets;
+in
+pkgs.runCommandNoCC "depot-pipeline" { } ''
+  mkdir $out
+  cp -r ${pipeline}/* $out
+  cp ${drvmap} $out/drvmap.json
+''