Reorganize .po linters for extensibility, similarity to other checks

.ci/linters/po/incomplete_translation_linter.R

@@ -0,0 +1,7 @@
+incomplete_translation_linter <- function(po_file) {
+  res = system2("msgfmt", c("--statistics", po_file, "-o", tempfile()), stdout=TRUE, stderr=TRUE)
+  if (any(grepl("untranslated message|fuzzy translation", res))) {
+    cat(sprintf("In %s, found incomplete translations:\n%s\n", po_file, paste(res, collapse="\n")))
+    stop("Please fix.")
+  }
+}

.github/workflows/code-quality.yaml

@@ -59,13 +59,6 @@ jobs:
           linter_env = new.env()
           for (f in list.files('.ci/linters/po', full.names=TRUE)) sys.source(f, linter_env)
           for (po_file in list.files(pattern = "[.]po$", full.names=TRUE)) {
-            # only pay attention to files edited in the current PR, otherwise we can get
-            #   a situation like after #6424 where some untranslated messages were added
-            #   as part of non-translation maintenance, but this GHA would go red repeatedly
-            #   until a translation is added or the blank/fuzzy translations removed. We'd
-            #   rather only have the failure on one PR, then ignore these files later.
-            diff_v_master = system2("git", c("diff", "master", po_file), stdout=TRUE)
-            if (!length(diff_v_master)) next
             for (linter in ls(linter_env)) linter_env[[linter]](po_file)
           }
         shell: Rscript {0}