chore(Makefile): create targets to update and build translations

- create dedicated Makefile targets: `update-translations` and
`compile-translations` that extract/update/merge and compile the TS
files respectively
- these targets can then later be invoked externally by CI automation
- reuing the dedicated Qt6 cmake macros to do the hard work; no need for
a separate Python script
- add a sample Czech translation to test the changes (to be finished
later separately)
- update the i18n README

Fixes #18820

Author: caybro

I18N.md

@@ -8,12 +8,13 @@ There are excellent manuals detailing the translation process for [developers](h
 ### Update base translations file
 1. Update the base TS files (`qml_base.ts` and `qml_en.ts`, the latter serving only for the purpose of providing plural forms for English):
 ```bash
-$ cd scripts/translationScripts 
-$ python update-en-ts.py
+$ make update-translations
 ```
 2. The updated TS files are created in the `ui/i18n/` directory
 3. Ensure the updated base files land in master
 
+The resulting binary QM files are also produced by simply running `make` via `make compile-translations` subtarget
+
 ### Update translations
 1. Create pull request with exported translations using lokalise.com, see [docs](https://docs.lokalise.com/en/articles/1684090-github)
 

Makefile

@@ -22,6 +22,7 @@ BUILD_SYSTEM_DIR := vendor/nimbus-build-system
 	check-pkg-target-macos \
 	check-pkg-target-windows \
 	clean \
+	update-translations \
 	compile-translations \
 	deps \
 	nim_status_client \
@@ -39,11 +40,11 @@ BUILD_SYSTEM_DIR := vendor/nimbus-build-system
 	status-keycard-go \
 	statusq-sanity-checker \
 	run-statusq-sanity-checker \
-        statusq-tests \
-        run-statusq-tests \
-        storybook-build \
-        run-storybook \
-        run-storybook-tests \
+	statusq-tests \
+	run-statusq-tests \
+	storybook-build \
+	run-storybook \
+	run-storybook-tests \
 	update
 
 ifeq ($(NIM_PARAMS),)
@@ -532,18 +533,25 @@ $(UI_RESOURCES): $(UI_SOURCES) | check-qt-dir
 
 rcc: $(UI_RESOURCES)
 
-TS_SOURCES := $(shell find ui/i18n -iname '*.ts') # ui/i18n/qml_*.ts
-QM_BINARIES := $(shell find ui/i18n -iname "*.ts" | sed 's/\.ts/\.qm/' | sed 's/ui/bin/') # bin/i18n/qml_*.qm
+TS_SOURCE_DIR := ui/i18n
+TS_BUILD_DIR := $(TS_SOURCE_DIR)/build
 
-$(QM_BINARIES): TS_FILE = $(shell echo $@ | sed 's/\.qm/\.ts/' | sed 's/bin/ui/')
-$(QM_BINARIES): $(TS_SOURCES) | check-qt-dir
-	mkdir -p bin/i18n
-	lrelease -removeidentical $(TS_FILE) -qm $@ $(HANDLE_OUTPUT)
+log-update-translations:
+	echo -e "\033[92mUpdating:\033[39m translations"
+
+update-translations: | log-update-translations
+	cmake -S $(TS_SOURCE_DIR) -B $(TS_BUILD_DIR) -Wno-dev $(HANDLE_OUTPUT)
+	cmake --build $(TS_BUILD_DIR) --target update_application_translations $(HANDLE_OUTPUT)
 
 log-compile-translations:
 	echo -e "\033[92mCompiling:\033[39m translations"
 
-compile-translations: | log-compile-translations $(QM_BINARIES)
+compile-translations: | update-translations log-compile-translations
+	cmake -S $(TS_SOURCE_DIR) -B $(TS_BUILD_DIR) -Wno-dev $(HANDLE_OUTPUT)
+	cmake --build $(TS_BUILD_DIR) --target compile_application_translations $(HANDLE_OUTPUT)
+
+clean-translations:
+	rm -rf $(TS_BUILD_DIR)
 
 # used to override the default number of kdf iterations for sqlcipher
 KDF_ITERATIONS ?= 0
@@ -839,7 +847,7 @@ zip-windows: check-pkg-target-windows $(STATUS_CLIENT_7Z)
 clean-destdir:
 	rm -rf bin/*
 
-clean: | clean-common clean-destdir statusq-clean status-go-clean dotherside-clean storybook-clean
+clean: | clean-common clean-destdir statusq-clean status-go-clean dotherside-clean storybook-clean clean-translations
 	rm -rf node_modules bottles/* pkg/* tmp/* $(STATUSKEYCARDGO)
 	+ $(MAKE) -C vendor/QR-Code-generator/c/ --no-print-directory clean
 

scripts/translationScripts/update-en-ts.py

@@ -14,10 +14,11 @@ type
 
 let localeDescriptionTable* = {
     "ar": Description(name: "Arabic", native: "العربية", flag: "", state: State.Alpha),
-    "bn": Description(name: "Bengali", native: "বাংলা", flag: "X", state: State.Alpha),
+    "bn": Description(name: "Bengali", native: "বাংলা",  flag: "X", state: State.Alpha),
+    "cs": Description(name: "Czech", native: "čeština", flag: "🇨🇿", state: State.Alpha),
     "de": Description(name: "German", native: "Deutsch", flag: "🇩🇪", state: State.Alpha),
     "el": Description(name: "Greek", native: "Ελληνικά", flag: "🇬🇷", state: State.Alpha),
-    "en": Description(name: "English", native: "English", flag: "🏴󠁧󠁢󠁥󠁮󠁧󠁿", state: State.Stable),
+    "en": Description(name: "English", native: "English", flag: "🇬🇧", state: State.Stable),
     "en_US": Description(name: "English (United States)", native: "English (United States)", flag: "🇺🇸", state: State.Alpha),
     "es": Description(name: "Spanish", native: "Español", flag: "🇪🇸", state: State.Alpha),
     "es_419": Description(name: "Spanish (Latin America)", native: "Español (Latinoamerica)", flag: "", state: State.Alpha),

src/app/modules/main/profile_section/language/locale_table.nim

@@ -0,0 +1,49 @@
+cmake_minimum_required(VERSION 3.19)
+
+project(status-app-i18n) # dummy project to silence warnings, TBD at the toplevel
+
+find_package(QT NAMES Qt6 REQUIRED COMPONENTS Core)
+find_package(Qt6 REQUIRED COMPONENTS LinguistTools)
+
+#qt6_standard_project_setup(I18N_TRANSLATED_LANGUAGES cs)
+
+set(QT_NO_MISSING_CATALOG_LANGUAGE_WARNING ON)
+
+file(GLOB_RECURSE
+    COLLECTED_SOURCE_FILES
+    ${CMAKE_SOURCE_DIR}/../*.qml
+)
+
+qt6_add_lupdate(
+    LUPDATE_TARGET update_application_translations # name of the cmake target
+    OPTIONS -locations none -no-obsolete # options passed to 'lupdate'
+    TS_FILES
+        ${CMAKE_SOURCE_DIR}/qml_base.ts
+        ${CMAKE_SOURCE_DIR}/qml_cs.ts
+    PLURALS_TS_FILE
+        ${CMAKE_SOURCE_DIR}/qml_en.ts
+    SOURCES ${COLLECTED_SOURCE_FILES}
+)
+
+qt6_add_lrelease(
+    LRELEASE_TARGET compile_application_translations # name of the cmake target
+    OPTIONS -removeidentical -compress -nounfinished # options passed to 'lrelease'
+    TS_FILES
+        ${CMAKE_SOURCE_DIR}/qml_en.ts
+        ${CMAKE_SOURCE_DIR}/qml_cs.ts
+    QM_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/../../bin/i18n
+    MERGE_QT_TRANSLATIONS
+    QT_TRANSLATION_CATALOGS qtbase qtmultimedia qtwebengine
+)
+
+# Ideally at the toplevel it could be done sth like this in one pass/target:
+#qt6_add_translations(
+#  TS_FILE_BASE qml_
+#  SOURCES ${COLLECTED_SOURCE_FILES}
+#  LUPDATE_TARGET update_application_translations
+#  LUPDATE_OPTIONS "-locations none -no-obsolete"
+#  LRELEASE_TARGET compile_application_translations
+#  LRELEASE_OPTIONS "-removeidentical -compress -nounfinished"
+#  QM_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/../../bin/i18n
+#  MERGE_QT_TRANSLATIONS
+#)