60 lines
2.5 KiB
OCaml
60 lines
2.5 KiB
OCaml
open Logarion
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let index print title authors locations peers dir =
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let fname = Filename.concat dir "index.pck" in
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let pck = match Header_pack.of_string @@ File_store.to_string fname with
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| Error s -> failwith s
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| Ok pck -> let info = Header_pack.{ pck.info with
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title = if title <> "" then title else pck.info.title;
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people = if authors <> ""
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then (String_set.list_of_csv authors) else pck.info.people;
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locations = if locations <> ""
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then (String_set.list_of_csv locations) else pck.info.locations;
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} in
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Header_pack.{ info; fields;
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texts = of_text_list @@ File_store.fold ~dir
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(fun a (t,_) -> of_text a t) [];
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peers = if peers <> ""
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then (str_list @@ String_set.list_of_csv peers) else pck.peers;
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}
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| exception (Sys_error _) -> Header_pack.{
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info = {
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version = version; id = Id.generate (); title;
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people = String_set.list_of_csv authors;
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locations = String_set.list_of_csv locations };
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fields;
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texts = of_text_list @@ File_store.fold ~dir
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(fun a (t,_) -> of_text a t) [];
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peers = str_list @@ String_set.list_of_csv peers;
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} in
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File_store.file fname (Header_pack.string pck);
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let open Header_pack in
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let s ss = String.concat "\n\t" ss in
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if print then
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Printf.printf "Title: %s\nAuthors: %s\nLocations:\n\t%s\nPeers:\n\t%s\n"
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pck.info.title (String.concat "," pck.info.people)
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(s pck.info.locations) (s (to_str_list pck.peers))
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open Cmdliner
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let term =
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let print = Arg.(value & flag & info ["print"] ~doc:"print info") in
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let title= Arg.(value & opt string "" & info ["t"; "title"]
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~docv:"string" ~doc:"Title for index") in
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let auth = Arg.(value & opt string "" & info ["a"; "authors"]
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~docv:"comma-separated names" ~doc:"Index authors") in
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let locs = Arg.(value & opt string "" & info ["l"; "locations"]
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~docv:"comma-separated URLs" ~doc:"repository URLs") in
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let peers= Arg.(value & opt string "" & info ["p"; "peers"]
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~docv:"comma-separated URLs" ~doc:"URLs to other known text repositories") in
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let dir = Arg.(value & pos 0 string "." & info []
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~docv:"directory to index") in
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let doc = "Generate an index.pck for texts in a directory" in
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Term.(const index $ print $ title $ auth $ locs $ peers $ dir),
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Term.info "index" ~doc
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~man:[ `S "DESCRIPTION"; `Pre "An index contains:\n
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* an info section with: title for the index, the authors, locations (URLs) the texts can be access\n
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* listing of texts with: ID, date, title, authors, topics\n
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* list of other text repositories (peers)\n\n
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MessagePack format. <msgpack.org>" ]
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