feat(nix/buildkite): use keys based on drvPaths where possible r/7939

This will make it easier to emit intra pipeline dependencies based on
the dependencies between derivations contained therein later.

A consequence of this change is that it is no longer possible to have
the same derivation be exposed as multiple steps in the pipeline. I
doubt that having this is very useful, though.

Keys for extraSteps are not changed significantly, but are distinguished
from derivation based steps (with prefix `drv-*`) by their prefix
`extra-step-*`.

Change-Id: I4165900e512b3967fa3ca4cd5bffd44bc15915fc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11115
Autosubmit: sterni <sternenseemann@systemli.org>
Reviewed-by: ezemtsov <eugene.zemtsov@gmail.com>
Tested-by: BuildkiteCI

1 files changed, 8 insertions, 1 deletions

diff --git a/third_party/overlays/tvl.nix b/third_party/overlays/tvl.nix
index 33031f94c288..23f56e2f98af 100644
--- a/third_party/overlays/tvl.nix
+++ b/third_party/overlays/tvl.nix
@@ -8,7 +8,14 @@ depot.nix.readTree.drvTargets {
     # flaky tests, long painful build, see https://github.com/NixOS/nixpkgs/pull/266443
     withAWS = false;
   });
-  nix = self.nix_2_3;
+  nix = self.nix_2_3 // {
+    # avoid duplicate pipeline step
+    meta = self.nix_2_3.meta or { } // {
+      ci = self.nix_2_3.meta.ci or { } // {
+        skip = true;
+      };
+    };
+  };
   nix_latest = super.nix.override ({
     # flaky tests, long painful build, see https://github.com/NixOS/nixpkgs/pull/266443
     withAWS = false;