Fri, 05 Aug 2022 13:34:47 +0200 wenzelm clarified session name: treat PIDE session as Sessions.DRAFT with imports from other sessions;
Fri, 05 Aug 2022 13:23:52 +0200 wenzelm more robust build_hierarchy: support Resources.empty / Sessions.Structure.empty (required for Build_Job.print_log);
Thu, 04 Aug 2022 22:15:50 +0200 wenzelm clarified context for retrieval: more explicit types, with optional close() operation;
Thu, 04 Aug 2022 17:14:56 +0200 wenzelm tuned;
Thu, 04 Aug 2022 17:08:35 +0200 wenzelm unused;
Thu, 04 Aug 2022 14:48:05 +0200 wenzelm retrieve information about used files;
Thu, 04 Aug 2022 13:52:43 +0200 wenzelm tuned signature -- more robust;
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