#7 Add support for asymmetric encryption

yadm

@@ -223,8 +223,16 @@ function encrypt() {
 
   #; process relative to YADM_WORK
   YADM_WORK=$(git config core.worktree)
+  GPG_KEY="$(config yadm.gpg-recipient)"
   cd $YADM_WORK
 
+  #; Build gpg options for gpg
+  if [ "$GPG_KEY" != "" ]; then
+    GPG_OPTS="-er $GPG_KEY"
+  else
+    GPG_OPTS="-c"
+  fi
+
   #; build a list of globs from YADM_ENCRYPT
   GLOBS=()
   while IFS='' read -r glob || [ -n "$glob" ]; do
@@ -234,7 +242,7 @@ function encrypt() {
   done < "$YADM_ENCRYPT"
 
   #; encrypt all files which match the globs
-  tar -cv ${GLOBS[@]} | gpg --yes -c --output "$YADM_ARCHIVE"
+  tar -cv ${GLOBS[@]} | gpg --yes "$GPG_OPTS" --output "$YADM_ARCHIVE"
   if [ $? = 0 ]; then
     echo "Wrote new file: $YADM_ARCHIVE"
   else