Don't try to patch the prompt on other systems

The current script was assuming that "default" is Ubuntu LTS...

But now it is possible to mix and match names and templates.

Avoid some scary-looking output in the log, if run elsewhere.

Signed-off-by: Anders F Björklund <[email protected]>

Author: afbjorklund

pkg/cidata/cidata.TEMPLATE.d/boot/08-shell-prompt.sh

@@ -1,7 +1,9 @@
 #!/bin/sh
 set -eux
 
-if [ "${LIMA_CIDATA_NAME}" = "default" ]; then
+# This script is only intended for the default.yaml image, which is based on Ubuntu LTS
+
+if [ "${LIMA_CIDATA_NAME}" = "default" ] && command -v patch >/dev/null 2>&1 && grep -q color_prompt "/home/${LIMA_CIDATA_USER}.linux/.bashrc"; then
 
 	! grep -q "^# Lima PS1" "/home/${LIMA_CIDATA_USER}.linux/.bashrc" || exit 0