tests/libvm: use rsync and add yumrepo mode

I've been lazy about actually using using rsync instead of scp when
copying new RPMs over to the VM. We do this here. Also make
`vm_send_test_repo` take a mode argument that allows callers to
completely skip the sending of the repo file itself. This will be needed
for the `makecache` test, in which we *don't* want the repo to be local.
It looks cleaner anyway for the gpgcheck use case as well.

Closes: #1035
Approved by: cgwalters

tests/common/libvm.sh

@@ -36,15 +36,19 @@ vm_setup() {
   export SCP="scp $sshopts"
 }
 
+# rsync wrapper that sets up authentication
+vm_raw_rsync() {
+  local rsyncopts="ssh -o User=root"
+  if [ -f ${topsrcdir}/ssh-config ]; then
+    rsyncopts="$rsyncopts -F '${topsrcdir}/ssh-config'"
+  fi
+  rsync -az --no-owner --no-group -e "$rsyncopts" "$@"
+}
+
 vm_rsync() {
   if ! test -f .vagrant/using_sshfs; then
     pushd ${topsrcdir}
-    local rsyncopts="ssh -o User=root"
-    if [ -f ssh-config ]; then
-      rsyncopts="$rsyncopts -F ssh-config"
-    fi
-    rsync -az --no-owner --no-group -e "$rsyncopts" \
-              --exclude .git/ . $VM:/var/roothome/sync
+    vm_raw_rsync --exclude .git/ . $VM:/var/roothome/sync
     popd
   fi
 }
@@ -99,23 +103,28 @@ vm_send() {
 }
 
 # copy the test repo to the vm
+# $1  - repo file mode: nogpgcheck (default), gpgcheck, skip (don't send)
 vm_send_test_repo() {
-  gpgcheck=${1:-0}
-  vm_cmd rm -rf /tmp/vmcheck
-  vm_send /tmp/vmcheck ${test_tmpdir}/yumrepo
+  mode=${1:-nogpgcheck}
+  vm_raw_rsync --delete ${test_tmpdir}/yumrepo $VM:/tmp/vmcheck
+
+  if [[ $mode == skip ]]; then
+    return
+  fi
 
   cat > vmcheck.repo << EOF
 [test-repo]
 name=test-repo
 baseurl=file:///tmp/vmcheck/yumrepo
 EOF
 
-  if [ $gpgcheck -eq 1 ]; then
+  if [[ $mode == gpgcheck ]]; then
       cat >> vmcheck.repo <<EOF
 gpgcheck=1
 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-25-primary
 EOF
   else
+      assert_streq "$mode" nogpgcheck
       echo "Enabling vmcheck.repo without GPG"
       echo 'gpgcheck=0' >> vmcheck.repo
   fi
@@ -333,12 +342,19 @@ vm_assert_status_jq() {
 # Like build_rpm, but also sends it to the VM
 vm_build_rpm() {
     build_rpm "$@"
-    vm_send_test_repo 0 # XXX use rsync
+    vm_send_test_repo
+}
+
+# Like vm_build_rpm but takes a yumrepo mode
+vm_build_rpm_repo_mode() {
+    mode=$1; shift
+    build_rpm "$@"
+    vm_send_test_repo $mode
 }
 
 vm_build_selinux_rpm() {
     build_selinux_rpm "$@"
-    vm_send_test_repo 0 # XXX use rsync
+    vm_send_test_repo
 }
 
 vm_get_journal_cursor() {

tests/vmcheck/test-layering-gpg.sh

@@ -29,8 +29,7 @@ vm_clean_caches
 # make sure the package is not already layered
 vm_assert_layered_pkg foo absent
 
-vm_build_rpm foo version 4.5 release 6
-vm_send_test_repo 1 # resend repo with gpg checking on
+vm_build_rpm_repo_mode gpgcheck foo version 4.5 release 6
 if vm_rpmostree pkg-add foo-4.5 2>err.txt; then
     assert_not_reached "Installed unsigned package"
 fi