Hackish workaround for ocurrent/obuilder#77

lib/opam_build.ml

@@ -33,8 +33,16 @@ let opam_install ~variant ~opam_version ~pin ~lower_bounds ~with_tests ~pkg =
  []
  ) @ [
  run ~network "opam %s || true" (match opam_version with `V2_1 | `Dev -> "update --depexts" | `V2_0 -> "depext -u");
+ ] @
+ (if with_tests then [
+ (* TODO: Remove this hack when https://github.com/ocurrent/obuilder/issues/77 is fixed *)
+ (* NOTE: This hack will fail for packages that have src: "git+https://..." *)
+ run ~cache ~network "((%sopam reinstall --with-test %s) > /dev/null 2>&1 ; echo \"exit code: $?\") || true"
+ (match opam_version with `V2_1 | `Dev -> "" | `V2_0 -> fmt "opam depext%s %s && " with_tests_opt pkg) pkg
+ ] else []) @ [
  (* TODO: Replace by two calls to opam install + opam install -t using the OPAMDROPINSTALLEDPACKAGES feature *)
- run ~cache ~network
+ (* NOTE: See above for the ~network:(if with_tests ...) hack *)
+ run ~cache ~network:(if with_tests then [] else network)
  {|%sopam reinstall%s %s;
  res=$?;
  test "$res" != 31 && exit "$res";