Attempts to get reprotest working in CI

Force buster platform, even in CI Focal environment

Modifies pkg path for lookup in CI

Moves reprotest suite to docker, to use Buster reprotest.

.circleci/config.yml

@@ -144,7 +144,7 @@ common-steps:
         export PKG_PATH=~/packaging/$PKG_NAME/dist/$PKG_NAME-$VERSION_TO_BUILD.tar.gz
         export PKG_VERSION=$VERSION_TO_BUILD
         make $PKG_NAME
-        ls ~/debbuild/packaging/*.deb
+        ls ~/project/build/debbuild/packaging/*.deb
 
   - &builddebianpackagefromexistingtarball
     run:
@@ -288,8 +288,8 @@ common-steps:
 version: 2.1
 jobs:
   tests:
-    machine:
-      image: ubuntu-2004:202010-01
+    docker:
+      - image: circleci/python:3.7-buster
     steps:
       - checkout
       - run:

scripts/build-debianpackage

@@ -28,7 +28,7 @@ mkdir -p "$TOP_BUILDDIR"
 rm -rf "${TOP_BUILDDIR:?}/${PKG_NAME}"
 mkdir -p "${TOP_BUILDDIR}/${PKG_NAME}"
 # Move changelog into place (we have separate changelogs for each platform)
-PLATFORM="$(lsb_release -sc)"
+PLATFORM="${PKG_PLATFORM:-buster}"
 
 # Validate required args.
 if [[ -z "${PKG_NAME:-}" ]]; then