[I18N] Makefile + gitignore

(cherry picked from commit 68c744111d)
(cherry picked from commit 30d7c4a899)
(cherry picked from commit dd055526a8)
(cherry picked from commit 098e709b0c)
(cherry picked from commit 2271f5a8d3)
(cherry picked from commit 06798f3e08)
(cherry picked from commit 31c7dc0dcb)
(cherry picked from commit bb80efd62f)
(cherry picked from commit fe6d9f1672)

.gitignore

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

Makefile

@@ -767,10 +767,14 @@ 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 ./...
@@ -929,13 +933,7 @@ 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: