[I18N] Makefile + gitignore

(cherry picked from commit 68c744111d)
(cherry picked from commit 30d7c4a899)
(cherry picked from commit 220ac0a6d3)
(cherry picked from commit 21cb16af95)
(cherry picked from commit 41a9373e3e)
(cherry picked from commit 69030f7803)
(cherry picked from commit 92c4d4d2e6)

.gitignore

@@ -115,3 +115,6 @@ prime/
 
 # Manpage
 /man
+
+# Generated merged Forgejo+Gitea language files
+/options/locale/locale_*

Makefile

@@ -768,10 +768,14 @@ generate: generate-backend
 generate-backend: $(TAGS_PREREQ) generate-go
 
 .PHONY: generate-go
-generate-go: $(TAGS_PREREQ)
+generate-go: $(TAGS_PREREQ) merge-locales
 	@echo "Running go generate..."
 	@CC= GOOS= GOARCH= $(GO) generate -tags '$(TAGS)' $(GO_PACKAGES)
 
+.PHONY: merge-locales
+merge-locales:
+	$(GO) run build/merge-forgejo-locales.go
+
 .PHONY: security-check
 security-check:
 	go run $(GOVULNCHECK_PACKAGE) -v ./...
@@ -936,13 +940,7 @@ lockfile-check:
 
 .PHONY: update-translations
 update-translations:
-	mkdir -p ./translations
-	cd ./translations && curl -L https://crowdin.com/download/project/gitea.zip > gitea.zip && unzip gitea.zip
-	rm ./translations/gitea.zip
-	$(SED_INPLACE) -e 's/="/=/g' -e 's/"$$//g' ./translations/*.ini
-	$(SED_INPLACE) -e 's/\\"/"/g' ./translations/*.ini
-	mv ./translations/*.ini ./options/locale/
-	rmdir ./translations
+	# noop to detect merge conflicts (potentially needs updating the scripts) and avoid breaking with Gitea
 
 .PHONY: generate-license
 generate-license: