From 4b675dda1b5934c2c57657b76ccf3838ee6ef0ab Mon Sep 17 00:00:00 2001
From: Laurent Trinques <scorpio@qelectrotech.org>
Date: Fri, 11 Sep 2026 11:40:10 +0200
Subject: [PATCH] CI/Windows: bundle Qt's own translations (qtbase) as
 lang/qt_XX.qm

windeployqt runs with --no-translations, so standard buttons (OK/Cancel)
and dialogs stayed in English. Copy each qtbase_XX.qm from the MSYS2 Qt
translations into files/lang/qt_XX.qm, where QETApp::setLanguage() looks,
with aliases for QET languages Qt only ships with a region (pt, zh).
---
 .github/workflows/windows-build.yml | 35 +++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/.github/workflows/windows-build.yml b/.github/workflows/windows-build.yml
index 956f8f697..86e47e7cc 100644
--- a/.github/workflows/windows-build.yml
+++ b/.github/workflows/windows-build.yml
@@ -248,6 +248,41 @@ jobs:
             exit 1
           fi
 
+          # Qt's own translations (OK/Cancel buttons, standard dialogs...):
+          # they come from qtbase_XX.qm, not from QET's .ts, and windeployqt
+          # runs with --no-translations. QETApp::setLanguage() falls back to
+          # lang/qt_XX.qm, so copy each qtbase_XX.qm there under that name
+          # (qtbase_XX.qm is standalone, unlike Qt's qt_XX.qm meta catalogs).
+          QT_TR_DIR=/ucrt64/share/qt6/translations
+          if [ ! -d "$QT_TR_DIR" ]; then
+            QT_TR_DIR=$(cygpath -u "$(/ucrt64/bin/qtpaths6 --query QT_INSTALL_TRANSLATIONS 2>/dev/null)" 2>/dev/null || true)
+          fi
+          find "$QT_TR_DIR" -maxdepth 1 -name 'qtbase_*.qm' 2>/dev/null | while read -r f; do
+            l=$(basename "$f" .qm)
+            cp "$f" "$FILES/lang/qt_${l#qtbase_}.qm"
+          done
+          # QET languages Qt only ships with a region (pt -> pt_PT, zh -> zh_CN):
+          # QTranslator only shortens codes (fr_FR -> fr), it never extends them.
+          for q in $TS_LISTED; do
+            l=${q#qet_}
+            if [ ! -e "$FILES/lang/qt_$l.qm" ]; then
+              if [ -e "$QT_TR_DIR/qtbase_${l}_${l^^}.qm" ]; then
+                alt="$QT_TR_DIR/qtbase_${l}_${l^^}.qm"
+              else
+                alt=$(find "$QT_TR_DIR" -maxdepth 1 -name "qtbase_${l}_*.qm" 2>/dev/null | LC_ALL=C sort | head -1 || true)
+              fi
+              if [ -n "$alt" ]; then
+                cp "$alt" "$FILES/lang/qt_$l.qm"
+              fi
+            fi
+          done
+          QT_QM_COUNT=$(find "$FILES/lang" -maxdepth 1 -name 'qt_*.qm' | wc -l)
+          echo "=== $QT_QM_COUNT Qt translation files (qt_*.qm) copied from $QT_TR_DIR ==="
+          if [ "$QT_QM_COUNT" -eq 0 ]; then
+            echo "ERROR: no qtbase_*.qm found in '$QT_TR_DIR' (mingw-w64-ucrt-x86_64-qt6-translations installed?)"
+            exit 1
+          fi
+
           for f in LICENSE ChangeLog CREDIT README ELEMENTS.LICENSE; do
             cp "$GITHUB_WORKSPACE/$f" "$FILES/$f" 2>/dev/null || true
           done