1 files changed, 15 insertions, 0 deletions
diff --git a/src/sisudoc/outputs/io_out/hub.d b/src/sisudoc/outputs/io_out/hub.d
index 0973097..254eaa5 100644
--- a/src/sisudoc/outputs/io_out/hub.d
+++ b/src/sisudoc/outputs/io_out/hub.d
@@ -62,6 +62,21 @@ template outputHub() {
   @system void outputHub(D)(D doc) {
     mixin Msg;
     auto msg = Msg!()(doc.matters);
+    /+ ↓ the po4a configuration, printed rather than written.
+         Spine does not write into a source tree, and this belongs beside the
+         catalogues in the pod it describes, so it goes to stdout for the
+         caller to put where they want it:
+           spine --po4a-cfg <pod> > <pod>/tools/po4a/po4a.cfg
+         Once per document, not once per language: it is generated from the
+         source language's files and names every other language itself.
+    +/
+    if (doc.matters.opt.action.po4a_cfg
+      && doc.matters.src.language == doc.matters.pod.manifest_list_of_languages[0]
+    ) {
+      import sisudoc.outputs.io_out.po4a_cfg;
+      mixin spinePo4aConfig;
+      write(po4aConfig(doc.matters));
+    }
     enum outTask { source_or_pod, sqlite, sqlite_multi, latex, odt, epub, html_scroll, html_seg, html_stuff, text, skel }
     void Scheduled(D)(int sched, D doc) {
       auto msg = Msg!()(doc.matters);