[gnome-shell] ci: Include .ui files in POTFILES check

[Marge Bot <marge-bot src gnome org>]

commit 5a18f00fa642806291ce29952d1a4769cb88a417
Author: Florian Müllner <fmuellner gnome org>
Date:   Thu Feb 10 18:18:34 2022 +0100

    ci: Include .ui files in POTFILES check
    
    As the previous commit shows, just checking source files isn't
    enough. Extending the existing check to .ui files should make
    sure that we catch that kind of breakage in the future before
    it hits translators.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2173>

 .gitlab-ci/check-potfiles.sh | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/.gitlab-ci/check-potfiles.sh b/.gitlab-ci/check-potfiles.sh
index a36fe7539b..82f101cf87 100755
--- a/.gitlab-ci/check-potfiles.sh
+++ b/.gitlab-ci/check-potfiles.sh
@@ -1,10 +1,14 @@
 #!/usr/bin/env bash
 
 srcdirs="src subprojects/extensions-tool"
+uidirs="js subprojects/extensions-app"
 
 # find source files that contain gettext keywords
 files=$(grep -lR --include='*.c' '\(gettext\|[^I_)]_\)(' $srcdirs)
 
+# find ui files that contain translatable string
+files="$files "$(grep -lRi --include='*.ui' 'translatable="[ty1]' $uidirs)
+
 # filter out excluded files
 if [ -f po/POTFILES.skip ]; then
   files=$(for f in $files; do ! grep -q ^$f po/POTFILES.skip && echo $f; done)