opamfile-loc var: add comment

ocaml · Oct 23, 2020 · bf6978a · bf6978a
1 parent 0c61d8a
commit bf6978a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/state/opamPackageVar.ml b/src/state/opamPackageVar.ml
@@ -307,6 +307,8 @@ let resolve st ?opam:opam_arg ?(local=OpamVariable.Map.empty) v =
     | "dev", Some opam -> Some (bool (is_dev_package st opam))
     | "build-id", Some opam -> OpamStd.Option.map string (build_id st opam)
     | "opamfile-loc", Some opam ->
+      (* Opamfile path is retrieved from overlay directory for pinned packages,
+         or from temporary repository in /tmp *)
       let repos_roots reponame =
         match Hashtbl.find st.switch_repos.repos_tmp reponame with
         | lazy repo_root -> repo_root