refactor: always use golang version of CopyFromImage

plugins/common/functions

@@ -490,46 +490,7 @@ copy_from_image() {
   declare IMAGE="$1" SRC_FILE="$2" DST_FILE="$3"
   local WORK_DIR=""
 
-  local DOCKER_CREATE_LABEL_ARGS="--label=com.dokku.app-name=$APP"
-
-  if verify_image "$IMAGE"; then
-    if ! is_abs_path "$SRC_FILE"; then
-      if is_image_cnb_based "$IMAGE"; then
-        WORKDIR="/workspace"
-      elif is_image_herokuish_based "$IMAGE" "$APP"; then
-        WORKDIR="/app"
-      else
-        WORKDIR="$("$DOCKER_BIN" image inspect --format '{{.Config.WorkingDir}}' "$IMAGE")"
-      fi
-
-      if [[ -n "$WORKDIR" ]]; then
-        SRC_FILE="${WORKDIR}/${SRC_FILE}"
-      fi
-    fi
-
-    TMP_FILE_COMMAND_OUTPUT=$(mktemp "/tmp/dokku-${DOKKU_PID}-${FUNCNAME[0]}.XXXXXX")
-    trap "rm -rf '$TMP_FILE_COMMAND_OUTPUT' &>/dev/null || true" RETURN
-
-    local CID=$("$DOCKER_BIN" container create "${DOCKER_CREATE_LABEL_ARGS[@]}" $DOKKU_GLOBAL_RUN_ARGS "$IMAGE")
-    "$DOCKER_BIN" container cp "$CID:$SRC_FILE" "$TMP_FILE_COMMAND_OUTPUT" 2>/dev/null || true
-    "$DOCKER_BIN" container rm --force "$CID" &>/dev/null
-    plugn trigger scheduler-register-retired "$APP" "$CID"
-
-    # docker cp exits with status 1 when run as non-root user when it tries to chown the file
-    # after successfully copying the file. Thus, we suppress stderr.
-    # ref: https://github.com/dotcloud/docker/issues/3986
-    if [[ ! -s "$TMP_FILE_COMMAND_OUTPUT" ]]; then
-      return 1
-    fi
-
-    # workaround for CHECKS file when owner is root. seems to only happen when running inside docker
-    dos2unix -l <"$TMP_FILE_COMMAND_OUTPUT" >"$DST_FILE"
-
-    # add trailing newline for certain places where file parsing depends on it
-    if [[ "$(tail -c1 "$DST_FILE")" != "" ]]; then
-      echo "" >>"$DST_FILE"
-    fi
-  else
+  if ! "$PLUGIN_CORE_AVAILABLE_PATH/common/common" copy-from-image "$APP" "$IMAGE" "$SRC_FILE" "$DST_FILE"; then
     return 1
   fi
 }

plugins/common/src/common/common.go

@@ -20,6 +20,12 @@ func main() {
 
 	var err error
 	switch cmd {
+	case "copy-from-image":
+		appName := flag.Arg(1)
+		image := flag.Arg(2)
+		source := flag.Arg(3)
+		destination := flag.Arg(4)
+		err = common.CopyFromImage(appName, image, source, destination)
 	case "docker-cleanup":
 		appName := flag.Arg(1)
 		force := common.ToBool(flag.Arg(2))