Samhain 21

Converter - type selection - subdir conversion - htm extension Gemini - index.gmi - topics and latest - gmi.atom feed Add pull (http(s)) operation - peers.pub.conf and peers.priv.conf HTML5 format & fixes by Novaburst Phony target (thanks Gergely) May Basic unit renamed from Note to Text. New modular text-parser, internal to Logarion, for generic notation parsing. The default input format is now a much plainer text. Logarion created texts have part of the UUID in filename. Logarion's index re-written in Messagepack format. Removed `indices` command. They are generated during `convert`.
2 years ago · 22fe21326f
parent 3d92789cdb
commit 22fe21326f
56 changed files with 1256 additions and 1583 deletions
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@ -1,83 +0,0 @@
-# Contributing to Logarion
-
-Logarions primary aim is to create a note system, which doesn't waste resources.
-The secondary aim is to provide an exemplary OCaml project to demonstrate and promote the language (as it happens with many other "Blogging" systems written in other languages).
-
-As part of the secondary aim, the source code needs to written in a way that encourages the language's adoption and the participation to the OCaml developer community.
-
-## Starting with OCaml
-
-_"OCaml is an industrial strength programming language supporting functional, imperative and object-oriented styles"_ -- https://ocaml.org/
-
-OCaml simply rocks.
-
-If you are unfamiliar with OCaml, consider starting with these resources:
-
- Install OCaml: https://ocaml.org/docs/install.html
- Read about OCaml: https://ocaml.org/learn/books.html
- Ask questions & join the community:
-  - Mailing lists: https://ocaml.org/community/
-  - IRC: irc://irc.freenode.net/#ocaml (Web client: https://riot.im/app/#/room/#freenode_#ocaml:matrix.org )
-  - Reddit: http://www.reddit.com/r/ocaml/
-  - Discourse: https://discuss.ocaml.org/
-  - .. other: https://ocaml.org/community/
-
-## Design principles
-
-[Unix philosophy](https://en.wikipedia.org/wiki/Unix_philosophy#Do_One_Thing_and_Do_It_Well)
-
-1. System simplicity & interoperability.
-2. Output quality.
-3. Distributed interactivity, like sharing with friends.
-
-## Developing & contributing
-
-### Clone
-
-```
-git clone https://cgit.orbitalfox.eu/logarion/
-```
-
-Install dependencies:
-
-```
-cd logarion
-pin add logarion . -n
-opam depext --install logarion
-```
-
-Build the project:
-
-```
-dune build src/logarion.exe
-```
-
-This will create `_build/default/src/logarion.exe` (the command line interface).
-
-### Project structure
-
-There are three layers:
-
- notes 
- archive 
- interfaces & intermediate formats
-
-### Core
-
- `logarion.ml`: repository related functions (listing, adding/removing, etc). ([src/logarion.ml](https://gitlab.com/orbifx/logarion/blob/master/src/logarion.ml))
- `note.ml`: parsing from and to note files. ([src/note.ml](https://gitlab.com/orbifx/logarion/blob/master/src/note.ml))
-
-### Intermediate formats
-
-Converters:
-
- `html.ml`: archive to HTML pages.
- `atom.ml`: archive to Atom feeds.
-
-### Servers & utilities
-
-Logarion's archives can be served over various protocols using servers.
-Find related software here:
-
- https://logarion.orbitalfox.eu/
- https://cgit.orbitalfox.eu/
--- a/22
+++ b/22
@ -1,18 +1,18 @@
-all: cli
+all:
+	dune build

 cli:
-	dune build src/logarion_cli.exe
+	dune build cli/cli.exe

 clean:
 	dune clean

-theme-dark:
-	sassc share/sass/main-dark.sass > share/static/main.css
-
-theme-light:
-	sassc share/sass/main-light.sass > share/static/main.css
-
 tgz:
-	cp _build/default/src/logarion_cli.exe logarion
-	strip logarion
-	tar czvf "logarion-$(shell ./logarion --version)-$(shell uname -s)-$(shell uname -m)-$(shell git rev-parse --short HEAD).tar.gz" share logarion
+	dune subst
+	dune build
+	cp _build/default/cli/cli.exe txt
+	strip txt
+	tar czvf "logarion-$(shell date -r _build/default/cli/cli.exe "+%y-%m-%d")-$(shell uname -s)-$(shell uname -m)-$(shell git rev-parse --short HEAD).tar.gz" txt ReadMe
+	rm txt
+
+.PHONY: cli
--- a/README.md
+++ b/README.md
@ -1,50 +0,0 @@
-# Logarion
-
-Logarion is a [free and open-source][Licence] personal note taking, journaling and publication system; a blog-wiki hybrid.
-
-## Features
-
- Plain file system store, where each note is a file.
- Command line & web interfaces.
- Atom feeds
- Static (conversion to files for uploading) & dynamic serving (HTTP, Gopher, ..).
-
-
-## Community & support
-
- Website: <https://logarion.orbitalfox.eu>
- Mailing list: <https://lists.orbitalfox.eu/listinfo/logarion>
- Matrix (chat): `#logarion:matrix.org`. Via Riot web-app: <https://riot.im/app/#/room/#logarion:matrix.org>
- For issues peferably email to [mailto:logarion@lists.orbitalfox.eu](mailto:logarion@lists.orbitalfox.eu?subject=[Issue] summary-here).
-  Alternatively <https://gitlab.com/orbifx/logarion/issues>
-
-
-## Install
-
-The following instructions are the quickest way to install Logarion (in the absence of binary releases).
-
-```
-opam pin add logarion git://orbitalfox.eu/logarion
-opam install logarion
-```
-
-Once installed you will have `logarion` for command line control of the repository.
-
-## Archives
-
-### Command line
-
-Create a folder and run `logarion init` from within it to produce `.logarion/config.toml`, which is the core configuration file.
-The archive options are under the `[archive]` section.
-
-Run `logarion --help` for more options.
-
-
-#### Theme
-
-Optionally install a [Sass](http://sass-lang.com/) compiler, like [sassc](http://sass-lang.com/libsass#sassc), and then run `make theme-dark` or `make theme-light`, to generate a stylesheet as `share/static/main.css`, using the respective Sass files in `share/sass/`.
-
-## See also
-
- [CONTRIBUTING.md](CONTRIBUTING.md)
- [Licence](https://joinup.ec.europa.eu/software/page/eupl)
--- a/cli/atom.ml
+++ b/cli/atom.ml
@ -0,0 +1,57 @@
+let esc = Converter.Html.esc
+
+let element tag content = "<" ^ tag ^ ">" ^ content ^ "</" ^ tag ^ ">"
+
+let opt_element tag_name content =
+  if content <> ""
+  then element tag_name content
+  else ""
+
+module P = Parsers.Plain_text.Make (Converter.Html)
+
+let id txt = "<id>urn:uuid:" ^ Logarion.(Id.to_string txt.Text.uuid) ^ "</id>"
+let title text = "<title>" ^ esc text.Logarion.Text.title ^ "</title>"
+
+let authors text =
+	let u acc addr = acc ^ element "uri" (Uri.to_string addr) in
+  let open Logarion in
+  let fn txt a =
+  	a ^ "<author>" ^ (opt_element "name" @@ esc txt.Person.name)
+  	^ (List.fold_left u "" txt.Person.addresses)
+  	^ "</author>" in
+  Person.Set.fold fn text.Text.authors ""
+
+let updated txt = let open Logarion in
+	"<updated>"^ Date.(txt.Text.date |> listing |> rfc_string) ^"</updated>"
+	
+let htm_entry base_url text =
+  let open Logarion in
+  let u = Text.short_id text in
+  "<entry><link rel=\"alternate\" href=\"" ^ base_url ^ "/" ^ u ^ ".htm\" />"
+  ^ title text ^ id text ^ updated text ^ authors text
+  ^ (opt_element "summary" @@ esc @@ Text.str "abstract" text)
+  ^ String_set.fold (fun elt a -> a ^ "<category term=\"" ^ esc elt ^ "\"/>") (Text.set "topics" text) ""
+  ^ "<content type=\"xhtml\"><div xmlns=\"http://www.w3.org/1999/xhtml\">"
+  ^ P.of_string text.body ""
+  ^ "</div></content></entry>\n"
+
+let gmi_entry base_url text =
+  let open Logarion in
+  let u = Text.short_id text in
+  "<entry><link rel=\"alternate\" href=\"" ^ base_url ^ "/" ^ u ^ ".gmi\" />"
+  ^ title text ^ id text ^ updated text ^ authors text
+  ^ (opt_element "summary" @@ esc @@ Text.str "abstract" text)
+  ^ String_set.fold (fun elt a -> a ^ "<category term=\"" ^ elt ^ "\"/>") (Text.set "topics" text) ""
+  ^ "</entry>\n"
+
+let feed title archive_id base_url alternate_type texts =
+	let entry, self = match alternate_type with
+		| "text/gemini" -> gmi_entry, base_url^"/gmi.atom"
+		| "text/html" | _ -> htm_entry, base_url^"/feed.atom" in
+  {|<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" xml:base="|} ^ base_url ^ {|"><title>|}
+  ^ title ^ {|</title><link rel="alternate" type="|} ^ alternate_type ^ {|" href="|}
+  ^ base_url ^ {|/" /><link rel="self" type="application/atom+xml" href="|}
+  ^ self ^ {|" /><id>urn:uuid:|} ^ Logarion.Id.to_string archive_id ^ "</id><updated>"
+  ^ Ptime.to_rfc3339 (Ptime_clock.now ()) ^ "</updated>\n"
+  ^ List.fold_left (fun acc t -> acc ^ entry base_url t) "" texts
+  ^ "</feed>"
--- a/cli/cli.ml
+++ b/cli/cli.ml
@ -0,0 +1,142 @@
+let version = "%%VERSION%%"
+
+open Cmdliner
+open Logarion
+module A = Logarion.Archive.Make(File_store)
+
+(* TODO: merge in lib/ so other modules can use (.e.g HTTP pull) *)
+let text_list order_opt reverse_opt number_opt values_opt authors_opt topics_opt =
+	match A.of_path (Sys.getcwd ()) with
+	| Error msg -> prerr_endline msg
+	| Ok archive ->
+		let predicates = A.predicate A.authored authors_opt @ A.predicate A.topics topics_opt in
+		let predicate text = List.fold_left (fun a e -> a && e text) true predicates in
+		let print_fold ~predicate fn =
+			let ts = A.fold ~predicate fn String_set.empty archive in
+			String_set.iter (print_endline) ts
+		in
+		let list_text (t, fname) = print_endline (Text.short_id t ^ " " ^ t.Text.title ^ "\t" ^ fname) in
+		match values_opt with
+		| Some "topics" -> print_fold ~predicate (fun a (e,_) -> (String_set.union a (Text.set "topics" e)))
+		| Some "authors" ->
+				let s = A.fold ~predicate (fun a (e,_) -> Person.Set.union a e.Text.authors) Person.Set.empty archive in
+				print_endline @@ Person.Set.to_string s
+		| Some x -> prerr_endline @@ "Unrecognised field: " ^ x
+		| None -> match order_opt with
+			| false -> A.iter ~predicate list_text archive
+			| true ->
+				let order = match reverse_opt with true -> A.newest | false -> A.oldest in
+				match number_opt with
+				| Some number -> A.iter ~predicate ~order ~number list_text archive
+				| None -> A.iter ~predicate ~order list_text archive
+
+let list_term =
+	let reverse = Arg.(value & flag & info ["r"] ~doc:"reverse order") in
+	let time   = Arg.(value & flag & info ["t"] ~doc:"Sort by time, newest first") in
+	let number = Arg.(value & opt (some int) None & info ["n"] ~docv:"NUMBER" ~doc:"number of entries to list") in
+	let values = Arg.(value & opt (some string) None & info ["values"] ~docv:"HEADER-FIELD" ~doc:"unique values for header field") in
+	let authed = Arg.(value & opt (some string) None & info ["authored"] ~docv:"AUTHORS" ~doc:"texts by authors") in
+	let topics = Arg.(value & opt (some string) None & info ["topics"] ~docv:"TOPICS" ~doc:"texts with topics") in
+	Term.(const text_list $ time $ reverse $ number $ values $ authed $ topics),
+	Term.info "list" ~doc:"list texts" ~man:[ `S "DESCRIPTION"; `P "List texts" ]
+
+let print_last search_mine =
+	let last a ((t,_) as pair) = match a with None -> Some pair
+		| Some (t', _) as pair' -> if Text.newest t t' > 0 then Some pair else pair' in
+	match A.of_path (Sys.getcwd ()) with
+	| Error msg -> prerr_endline msg
+	| Ok archive ->
+		let last_mine a ((t,_) as pair) =
+			let open Text in
+			match a with None ->
+				if Person.Set.subset archive.A.archivists t.authors then Some pair else None
+			| Some (t', _) as pair' ->
+				if Text.newest t t' > 0 && Person.Set.subset archive.A.archivists t'.authors
+				then Some pair else pair'
+		in
+		match A.fold (if search_mine then last_mine else last) None archive with
+		| Some (_,f) -> print_endline f | None -> ()
+
+let last_term =
+	let mine = Arg.(value & flag & info ["mine"] ~doc:"last text authored by me") in
+	Term.(const print_last $ mine),
+	Term.info "last" ~doc:"most recent test" ~man:[ `S "DESCRIPTION"; `P "Print the filename of most recent text" ]
+
+let split_filetypes files =
+	let acc (dirs, files) x = if Sys.is_directory x then (x::dirs, files) else (dirs, x::files) in
+	List.fold_left acc ([],[]) files
+
+let file files = match A.of_path "." with
+	| Error msg -> prerr_endline msg
+	| Ok _archive ->
+		let dirs, files = split_filetypes files in
+		let _link_as_named dir file = Unix.link file (dir ^"/"^ file) in
+		let link_with_id dir file =
+			match File_store.to_text file with Error s -> prerr_endline s
+			| Ok t -> Unix.link file (dir ^"/"^ String.sub (Id.to_string (t.Text.uuid)) 0 8 ^".txt")
+		in
+		let link = link_with_id in
+		List.iter (fun d -> List.iter (link d) files) dirs
+
+let file_term =
+  let files = Arg.(value & pos_all string [] & info [] ~doc:"filenames") in
+  let doc = "file texts in directories" in
+  let man = [ `S "DESCRIPTION"; `P doc ] in 
+  Term.(const file $ files), Term.info "file" ~doc ~man
+
+let unfile files = match A.of_path "." with
+  | Error msg -> prerr_endline msg
+  | Ok _archive ->
+  	let dirs, files = split_filetypes files in
+		let unlink dir file = try Unix.unlink (dir ^"/"^ file) with Unix.(Unix_error(ENOENT,_,_))-> () in
+	  List.iter (fun d -> List.iter (unlink d) files) dirs
+
+let unfile_term =
+  let files = Arg.(value & pos_all string [] & info [] ~doc:"filenames") in
+  let doc = "unfile texts from directories" in
+  let man = [ `S "DESCRIPTION"; `P doc ] in 
+  Term.(const unfile $ files), Term.info "unfile" ~doc ~man
+
+let init _force = File_store.init ()
+
+let init_term =
+  let force = Arg.(value & flag & info ["f"; "force"] ~doc:"Initialise even if directory is not empty") in
+  let doc = "initialise a text repository in present directory" in
+  let man = [ `S "DESCRIPTION"; `P "Start an archive in current directory" ] in 
+  Term.(const init $ force), Term.info "init" ~doc ~man
+
+let new_term =
+  let f title topics_opt interactive =
+  match A.of_path "." with
+  | Error m -> prerr_endline m
+  | Ok archive ->
+    let t = match title with "" -> "Draft" | _ -> title in
+    let authors = archive.archivists in
+    let date = Date.({ created = Some (Ptime_clock.now ()); edited = None }) in
+    let text = { (Text.blank ()) with title = t; authors; date } in
+    let text = try Text.with_str_set text "Topics" (Option.get topics_opt) with _ -> text in
+    match File_store.with_text archive text with
+    | Error s -> prerr_endline s
+    | Ok (filepath, _note) ->
+      match interactive with false -> print_endline filepath
+      | true ->
+        print_endline @@ "Created: " ^ filepath;
+        let _code = Sys.command ("$EDITOR " ^ filepath) in
+        ()
+  in
+  let title = Arg.(value & pos 0 string "" & info [] ~docv:"TITLE" ~doc:"Title for new article") in
+  let topics= Arg.(value & opt (some string) None & info ["t"; "topics"] ~docv:"TOPICS" ~doc:"Topics for new article") in
+  let inter = Arg.(value & flag & info ["i"; "interactive"] ~doc:"Prompts through the steps of creation and publication") in
+  let man = [ `S "DESCRIPTION";  `P "Create a new article, with title 'Draft' when none provided"] in 
+  Term.(const f $ title $ topics $ inter), Term.info "new" ~doc:"create a new article" ~man
+
+let default_cmd =
+  let doc = "text archival & publishing" in
+  let man = [ `S "BUGS"; `P "Submit bugs <mailto:logarion@lists.orbitalfox.eu?subject=Issue: " ] in
+  Term.(ret (const (`Help (`Pager, None)))), Term.info "txt" ~version ~doc ~man
+
+let cmds = [ init_term; new_term; file_term; unfile_term; list_term; last_term; Convert.term; Http.pull_term ]
+
+let () =
+  Random.self_init();
+  match Term.eval_choice default_cmd cmds with `Error _ -> exit 1 | _ -> exit 0
--- a/cli/convert.ml
+++ b/cli/convert.ml
@ -0,0 +1,90 @@
+open Logarion
+module A = Archive.Make (Logarion.File_store)
+
+let convert_modified source dest fn title text =
+	if (try Unix.((stat dest).st_mtime < (stat source).st_mtime) with _-> true)
+	then (File_store.file dest (fn title text); true) else false
+
+let word_fname dir text = dir ^ "/" ^ Text.alias text
+let id_fname dir text = dir ^ "/" ^ Text.short_id text
+
+let writer types dir name (text,store_item) = (* todo: single_parser -> [files] *)
+(*	convert_modified store_item idfilename (fun _title -> Text.to_string) text.title text;*)
+	let h = if "htm" = types || "all" = types then
+		convert_modified store_item (id_fname dir text ^ ".htm") Html.page name text
+		else false in
+	let g = if "gmi" = types || "all" = types then
+		convert_modified store_item (id_fname dir text ^ ".gmi") Gemini.page name text
+		else false in
+	h || g
+
+let index_writer types noindex dir archive topic_roots topic_map texts =
+	let name = archive.A.name in
+	let file path = File_store.file (dir ^ path) in
+	file "/index.pck"	(Header_pack.pack archive texts);
+	if not noindex && ("htm" = types || "all" = types) then (
+		let index_name = try Store.KV.find "HTML-index" archive.File_store.kv
+			with Not_found -> "index.html" in
+		if index_name <> "" then
+			file ("/"^index_name) (Html.topic_main_index name topic_roots texts);
+		file "/index.date.htm" (Html.date_index name texts);
+		List.iter
+			(fun topic -> file ("/index." ^ topic ^ ".htm")
+			 (Html.topic_sub_index name topic_map topic texts))
+			topic_roots;
+		let base_url = try Store.KV.find "HTTP-URL" archive.File_store.kv
+			with Not_found -> prerr_endline "Missing `HTTP-URL:` in config"; "" in
+		file "/feed.atom" (Atom.feed archive.A.name archive.A.id base_url "text/html" texts)
+	);
+	if not noindex && ("gmi" = types || "all" = types) then (
+		let index_name = try Store.KV.find "Gemini-index" archive.File_store.kv
+			with Not_found -> "index.gmi" in
+		if index_name <> "" then
+			file ("/"^index_name) (Gemini.topic_main_index name topic_roots texts);
+		file "/index.date.gmi" (Gemini.date_index name texts);
+		List.iter
+			(fun topic -> file ("/index." ^ topic ^ ".gmi")
+			 (Gemini.topic_sub_index name topic_map topic texts))
+			topic_roots;
+		let base_url = try Store.KV.find "GEMINI-URL" archive.File_store.kv
+			with Not_found -> prerr_endline "Missing `GEMINI-URL:` in config"; "" in
+		file "/gmi.atom" (Atom.feed archive.A.name archive.A.id base_url "text/gemini" texts)
+	)
+
+let txt_writer types dir name ((text, _store_item) as r) =
+	match Text.str "Content-Type" text with
+	| "" | "text/plain" -> writer types dir name r
+	| x -> prerr_endline ("Can't convert Content-Type: "^x^" file: " ^text.Text.title); false
+
+let convert_all types noindex dir archive =
+	let name = archive.A.name in
+	let fn (ts,ls,acc) ((elt,_) as r) =
+		(Topic_set.to_map ts (Text.set "topics" elt)),
+		elt::ls, if txt_writer types dir name r then acc+1 else acc in
+	let empty = Topic_set.Map.empty in
+	let topic_map, texts, count = A.(fold ~order:newest fn (empty,[],0) archive) in
+	let topic_roots = Topic_set.roots topic_map in
+	index_writer types noindex dir archive topic_roots topic_map texts;
+	print_endline @@ "Converted: " ^ string_of_int (count)
+		^ "\nIndexed: " ^ string_of_int (List.length texts);
+	Ok ()
+
+let convert_dir types noindex cmd_dir =
+	let (>>=) = Result.bind in
+	let with_dir dir =
+		Result.map_error (function `Msg m -> m)
+		Logarion.File_store.Directory.(directory dir |> print ~descr:"export" dir) in
+	(A.of_path "."
+		>>= fun archive -> (match cmd_dir with "" -> Error "unspecified export dir" | x -> Ok x)
+		>>= fun dir -> with_dir dir
+		>>= fun _ -> convert_all types noindex dir { archive with store = dir })
+	 |> function Ok () -> () | Error x -> prerr_endline x
+
+open Cmdliner
+
+let term =
+	let directory = Arg.(value & pos 0 string "" & info [] ~docv:"target directory" ~doc:"Directory to convert into") in
+	let types = Arg.(value & opt string "all" & info ["t"; "type"] ~docv:"TYPES" ~doc:"Convert to type") in
+	let noindex = Arg.(value & flag & info ["noindex"] ~doc:"don't write an index when converting") in
+	Term.(const convert_dir $ types $ noindex $ directory),
+	Term.info "convert" ~doc:"convert archive" ~man:[ `S "DESCRIPTION"; `P "Convert Logarion archive" ]
--- a/cli/dune
+++ b/cli/dune
@ -0,0 +1,5 @@
+(executable
+ (name cli)
+ (public_name txt)
+ (modules cli convert html atom gemini)
+ (libraries logarion logarion.http re.str cmdliner bos ptime ptime.clock.os text_parse.converter text_parse.parsers msgpck))
--- a/cli/gemini.ml
+++ b/cli/gemini.ml
@ -0,0 +1,73 @@
+let page _archive_title text =
+  let open Logarion.Text in
+  "# " ^ text.title
+  ^ "\nAuthors: " ^ Logarion.Person.Set.to_string text.authors
+  ^ "\nDate: " ^ Logarion.Date.(pretty_date @@ listing text.date)
+  ^ let module T = Parsers.Plain_text.Make (Converter.Gemini) in
+  "\n" ^ T.of_string text.body ""
+
+let date_index title meta_list =
+  List.fold_left
+    (fun a m ->
+      a ^ "=> " ^ Logarion.Text.short_id m ^ ".gmi " ^
+        Logarion.(Date.(pretty_date (listing m.date)) ^ " " ^ m.title) ^ "\n")
+    ("# " ^ title ^ "\n\n## Posts by date\n\n") meta_list
+
+let to_dated_links ?(limit) meta_list =
+  let meta_list = match limit with
+    | None -> meta_list
+    | Some limit->
+       let rec reduced acc i = function
+         | [] -> acc
+         | h::t -> if i < limit then reduced (h::acc) (i+1) t else acc in
+       List.rev @@ reduced [] 0 meta_list
+  in
+  List.fold_left
+    (fun a m ->
+      a
+      ^ "=> " ^ Logarion.Text.short_id m ^ ".gmi "
+      ^ Logarion.(Date.(pretty_date (listing m.Text.date))) ^ " "
+      ^ m.Logarion.Text.title ^ "\n")
+    "" meta_list
+
+let topic_link root topic = 
+ "=> index." ^ root ^ ".gmi " ^ String.capitalize_ascii topic ^ "\n"
+
+let text_item path meta =
+  let open Logarion in
+  "=> " ^ path ^ Text.short_id meta ^ ".gmi "
+  ^ Date.(pretty_date (listing meta.Text.date)) ^ " "
+  ^ meta.Text.title ^ "\n"
+
+let listing_index topic_map topic_roots path metas =
+  let rec item_group topics =
+    List.fold_left (fun acc topic -> acc ^ sub_groups topic ^ items topic) "" topics
+  and sub_groups topic = match Logarion.Topic_set.Map.find_opt topic topic_map with
+    | None -> ""
+    | Some (_, subtopics) -> item_group (Logarion.String_set.elements subtopics)
+  and items topic =
+    let items =
+      let open Logarion in
+      List.fold_left
+        (fun a e ->
+        if String_set.mem topic (String_set.map (Logarion.Topic_set.topic) (Text.set "Topics" e))
+        then text_item path e ^ a else a) "" metas in
+    match items with
+    | "" -> ""
+    | x -> "## " ^ String.capitalize_ascii topic ^ "\n\n" ^ x
+  in
+  item_group topic_roots
+
+let fold_topic_roots topic_roots =
+  let list_item root t = topic_link root t in
+  List.fold_left (fun a x -> a ^ list_item x x) "" (List.rev topic_roots)
+
+let topic_main_index title topic_roots metas =
+	"# " ^ title ^ "\n\n"
+  ^ (if topic_roots <> [] then ("## Main topics\n\n" ^ fold_topic_roots topic_roots) else "")
+  ^ "\n## Latest\n\n" ^ to_dated_links ~limit:10 metas
+  ^ "\n=> index.date.gmi More by date\n"
+
+let topic_sub_index title topic_map topic_root metas =
+  "# " ^ title ^ "\n\n"
+  ^ listing_index topic_map [topic_root] "" metas
--- a/cli/html.ml
+++ b/cli/html.ml
@ -0,0 +1,125 @@
+let wrap (title:string) (subtitle:string) body =
+  {|<!DOCTYPE HTML>|}
+  ^ {|<html><head><title>|}
+  ^ subtitle ^ " | " ^ title
+  ^ {|</title><link rel="stylesheet" href="main.css">|}
+  ^ {|<link rel="alternate" href="feed.atom" type="application/atom+xml">|}
+  ^ {|<meta charset="utf-8"/>|}
+  ^ {|<meta name="viewport" content="width=device-width, initial-scale=1.0">|}
+  ^ {|</head><body><header><a href=".">|} ^ title
+  ^ {|</a> <nav><a href="feed.atom" id="feed">feed</a></nav></header>|} ^ body
+  ^ "</body></html>"
+
+let topic_link root topic = 
+  let replaced_space = String.map (function ' '->'+' | x->x) in
+  {|<a href="index.|} ^ root ^ {|.htm#|} ^ replaced_space topic ^ {|">|}
+  ^ String.capitalize_ascii topic ^ "</a>"
+
+let page archive_title text =
+  let open Logarion in
+  let open Text in
+  let module T = Parsers.Plain_text.Make (Converter.Html) in
+  let sep_append ?(sep=", ") a x = match a,x with "",_ -> x | _, "" -> a | _ -> a ^ sep ^ x in
+  let opt_kv key value = if String.length value > 0 then "<dt>" ^ key ^ "<dd>" ^ value else "" in
+(*  let author acc auth = sep_append acc Person.(auth.name ^ " ") in*)
+  let authors = (Person.Set.to_string text.authors ^ " ") in
+  let keywords = str_set "keywords" text in
+  let header =
+    let time x = {|<time datetime="|} ^ x ^ {|">|} ^ x ^ "</time>" in
+    let topic_links x =
+      let to_linked t a =
+        let ts = Topic_set.of_string t in
+        sep_append a (List.fold_left (fun a t -> sep_append ~sep:" > " a (topic_link (List.hd ts) t)) "" ts) in
+      String_set.fold to_linked x "" in
+    "<article><header><dl>"
+    ^ opt_kv "Title:" text.title
+    ^ opt_kv "Authors:" authors
+    ^ opt_kv "Date: " (time (Date.(pretty_date @@ listing text.date)))
+    ^ opt_kv "Series: " (str_set "series" text)
+    ^ opt_kv "Topics: " (topic_links (set "topics" text))
+    ^ opt_kv "Keywords: " keywords
+    ^ opt_kv "Id: " (Id.to_string text.uuid)
+    ^ {|</dl></header><pre style="white-space:pre-wrap">|} in
+  wrap archive_title text.title ((T.of_string text.body header) ^ "</pre></article>")
+
+let to_dated_links ?(limit) meta_list =
+  let meta_list = match limit with
+    | None -> meta_list
+    | Some limit->
+       let rec reduced acc i = function
+         | [] -> acc
+         | h::t -> if i < limit then reduced (h::acc) (i+1) t else acc in
+       List.rev @@ reduced [] 0 meta_list
+  in
+  List.fold_left
+    (fun a m ->
+      a ^ Logarion.(Date.(pretty_date (listing m.Text.date)) ^ " ")
+      ^ {|<a href="|} ^ Logarion.Text.short_id m ^ {|.htm">|} ^ m.Logarion.Text.title ^ "</a><br>")
+    "" meta_list
+
+let date_index ?(limit) title meta_list =
+  match limit with
+  | Some limit -> wrap title "Index" (to_dated_links ~limit meta_list)
+  | None -> wrap title "Index" (to_dated_links meta_list)
+
+let fold_topic_roots topic_roots =
+  let list_item root t = "<li>" ^ topic_link root t in
+  "<nav><h2>Main topics</h2>"
+  ^ List.fold_left (fun a x -> a ^ list_item x x) "<ul>" (List.rev topic_roots)
+  ^ "</ul></nav>"
+
+let fold_topics topic_map topic_roots metas =
+  let open Logarion in
+  let rec unordered_list root topic =
+    List.fold_left (fun a x -> a ^ list_item root x) "<ul>" topic
+    ^ "</ul>"
+  and sub_items root topic = match Topic_set.Map.find_opt topic topic_map with
+    | None -> ""
+    | Some (_, subtopics) -> unordered_list root (String_set.elements subtopics)
+  and list_item root t =
+    let item =
+      if List.exists (fun x -> String_set.mem t (String_set.map Topic_set.topic (Text.set "topics" x))) metas
+      then topic_link root t else String.capitalize_ascii t
+    in
+    "<li>" ^ item ^ sub_items root t
+  in
+  "<nav><h2>Topics</h2>"
+  ^ List.fold_left (fun a x -> a ^ list_item x x) "<ul>" (List.rev topic_roots)
+  ^ "</ul></nav>"
+
+let text_item path meta =
+  let open Logarion in
+  "<time>" ^ Date.(pretty_date (listing meta.Text.date))
+  ^ {|</time> <a href="|} ^ path ^ Text.short_id meta ^ {|.htm">|} ^ meta.Text.title
+  ^ "</a><br>"
+
+let listing_index topic_map topic_roots path metas =
+  let rec item_group topics =
+    List.fold_left (fun acc topic -> acc ^ sub_groups topic ^ items topic) "" topics
+  and sub_groups topic = match Logarion.Topic_set.Map.find_opt topic topic_map with
+    | None -> ""
+    | Some (_, subtopics) -> item_group (Logarion.String_set.elements subtopics)
+  and items topic =
+    let items =
+      let open Logarion in
+      List.fold_left
+        (fun a e ->
+        if String_set.mem topic (String_set.map (Logarion.Topic_set.topic) (Text.set "Topics" e))
+        then text_item path e ^ a else a) "" metas in
+    match items with
+    | "" -> ""
+    | x ->  {|<h2 id="|} ^ topic ^ {|">|} ^ String.capitalize_ascii topic ^ "</h2>" ^ x
+  in
+  "<nav><h1>Texts</h1>" ^ item_group topic_roots ^ "</nav>"
+
+let topic_main_index title topic_roots metas =
+  wrap title "Topics"
+    (fold_topic_roots topic_roots
+     ^ "<nav><h1>Latest</h1>" ^ to_dated_links ~limit:10 metas
+     ^ {|<a href="index.date.htm">More by date</a></nav>|} )
+
+let topic_sub_index title topic_map topic_root metas =
+  wrap title topic_root
+    (fold_topics topic_map [topic_root] metas
+(*     ^ {|<a href=".atom" id="feed">|}^ String.capitalize_ascii topic_root ^{| feed </a>|}*)
+     ^ listing_index topic_map [topic_root] "" metas)
--- a/doc/logarion.odocl
+++ b/doc/logarion.odocl
@ -1,3 +0,0 @@
-Logarion
-Ymd
-Web
--- a/16
+++ b/16
@ -0,0 +1,16 @@
+(lang dune 2.0)
+(name logarion)
+(homepage "https://logarion.orbitalfox.eu")
+
+(source (uri git://orbitalfox.eu/logarion))
+(license EUPL-1.2)
+(authors "orbifx")
+(maintainers "fox@orbitalfox.eu")
+(bug_reports "mailto:logarion@lists.orbitalfox.eu?subject=Issue:")
+
+(generate_opam_files true)
+
+(package
+ (name logarion)
+ (synopsis "Texts archival and exchange")
+ (depends re cmdliner bos ptime uuidm uri text_parse msgpck cohttp-lwt-unix tls))
--- a/http/dune
+++ b/http/dune
@ -0,0 +1,4 @@
+(library
+ (name        http)
+ (public_name logarion.http)
+ (libraries logarion uri cmdliner lwt cohttp cohttp-lwt cohttp-lwt-unix tls msgpck))
--- a/http/http.ml
+++ b/http/http.ml
@ -0,0 +1,143 @@
+let http_body fn uri =
+	let open Lwt in
+	let open Cohttp_lwt_unix in
+	Client.get uri >>= fun (headers, body) ->
+	body |> Cohttp_lwt.Body.to_string >|= fun body -> fn (headers, body)
+
+let response (headers, body) =
+	let open Cohttp in
+	match Header.get (headers |> Response.headers) "content-type" with
+	| Some "application/msgpack" | Some "application/octet-stream"
+		| Some "text/plain" | Some "text/plain; charset=utf-8" -> Ok body
+	| Some x -> Error ("Invalid content-type: " ^ x)
+	| None -> Ok body
+
+let http_apply fn uri = Lwt_main.run (http_body fn uri)
+
+module S = Set.Make(String)
+
+(*let is_selected sl =*)
+(*	let check str a b c = Option.(fold ~none:(is_none b && is_none c) ~some:(fun x -> x = str) a) in*)
+(*	function*)
+(*	| `Author s	-> check s sl.authors	sl.topics*)
+(*	| `Topic s	 -> check s sl.topics	 sl.authors*)
+
+(* TODO: parse using Header_pack *)
+
+let sub_id text = Logarion.(String.sub (text.Text.uuid |> Id.to_string) 0 8)
+let fname dir text = dir ^ sub_id text ^ ".txt"
+
+let newer time id dir =
+	match Logarion.File_store.to_text @@ Filename.concat dir (String.sub (Logarion.Id.to_string id) 0 8 ^ ".txt") with
+	| Error x -> prerr_endline x; true
+	| Ok txt -> time > (Logarion.(Header_pack.date (Date.listing txt.date)))
+	| exception (Sys_error _) -> true
+
+let pull_text url dir id =
+	let path = Uri.path url in
+	let u = Uri.with_path url (path ^ "/" ^ String.sub (Logarion.Id.to_string id) 0 8 ^ ".txt") in
+	match http_apply response u with
+	| Error msg -> prerr_endline @@ " Failed " ^ Uri.to_string u ^ " " ^ msg
+	| Ok txt ->
+		match Logarion.Text.of_string txt with
+		| Error s -> prerr_endline s
+		| Ok text ->
+			let file = open_out_gen [Open_creat; Open_trunc; Open_wronly] 0o640 (fname dir text) in
+			output_string file txt; close_out file
+
+(*TODO: adapt Archive predication function to work with free sets*)
+let parse_index _is_selected fn url p =
+	let open Logarion.Header_pack in
+	let dir = "peers/" ^ match Uri.host url with
+		None -> "local/" ^ Uri.path url | Some s -> s ^ Uri.path url ^ "/" in
+	Printf.printf "%s => %s\n" p.info.name dir;
+	(match Msgpck.to_list p.peers with [] -> () | ps ->
+		print_string " peers: ";
+		List.iter (fun x -> print_string ("  " ^ Msgpck.to_string x)) ps;
+		print_newline ());
+	match Msgpck.to_list p.texts with
+	| [] -> print_endline ", has empty index"
+	| texts ->
+		match Bos.OS.Dir.create ~mode:0o740 (Fpath.v dir) with
+		| Error (`msg s) -> prerr_endline ("Error making domain dir:" ^ s);
+		| _ -> 
+			let numof_texts = string_of_int @@ List.length texts in
+			let text_num_len = String.length numof_texts in
+			let of_pck i x =
+				Printf.printf "\r%*d/%s %!" text_num_len (i+1) numof_texts;
+				match x with
+				| Msgpck.List (id::time::title::_authors::_topics) ->
+					(match Logarion.Id.of_bytes Msgpck.(to_bytes id) with
+					| None -> prerr_endline ("Invalid id for " ^ Msgpck.to_string title)
+					| Some id ->
+						let t = match time with Msgpck.Int i -> Int32.of_int i | Msgpck.Uint32 i -> i | x -> Msgpck.to_uint32 x in
+						if newer t id dir then fn url dir id)
+				| _ -> prerr_endline ("Invalid record structure") in
+			List.iteri of_pck texts;
+			print_newline ()
+
+let pull_index url _authors _topics =
+	let index_url = Uri.(with_path url (path url ^ "/index.pck")) in
+	match http_apply response index_url with
+	| Error msg -> prerr_endline @@ "Failed index request for " ^ Uri.to_string index_url ^ " " ^ msg
+	| Ok body ->
+		let _i, pack = Msgpck.StringBuf.read body in
+(*		let predicates =*)
+(*			A.predicate A.authored authors_opt*)
+(*			@ A.predicate A.topics topics_opt*)
+(*		in*)
+		let is_selected text = List.fold_left (fun a e -> a && e text) true [](*predicates*) in
+		match Logarion.Header_pack.unpack pack with None -> ()
+		| Some headers -> parse_index is_selected pull_text url headers
+
+module Msg = struct
+	type t = Ptime.t * string
+	let compare (x0,y0) (x1,y1) = match Ptime.compare x1 x0 with 0 -> String.compare y0 y1 | c -> c
+end
+
+module MsgSet = Set.Make(Msg)
+
+let pull_msgs url _authors _topics = match http_apply response url with
+	| Error msg -> prerr_endline @@ "Failed index request for " ^ Uri.(to_string url) ^ " " ^ msg
+	| Ok body ->
+		let rec fold_msgs s a fn =
+			let t, msg = Scanf.bscanf s "%s %s@\n" (fun t m -> t, m) in
+			if t <> "" then fold_msgs s (fn a t msg) fn else a
+		in
+		let s = Scanf.Scanning.from_string body in
+		let msgs = MsgSet.empty in
+		let date_string t = Ptime.to_date t |>
+			fun (y, m, d) -> Printf.sprintf "%04d-%02d-%02d" y m d in
+		let msgs = fold_msgs s msgs
+			(fun msgs t m -> match Ptime.of_rfc3339 t with
+			| Ok (v,_,_) -> let open MsgSet in
+				let msgs = if cardinal msgs > 1 then remove (max_elt msgs) msgs else msgs in
+				add (v,m) msgs
+			| _ -> msgs) in
+		print_endline ("\n┌────=[ " ^ Uri.to_string url);
+		MsgSet.iter
+			(fun (t,m) -> print_endline
+				("│ " ^ date_string t ^ "\n│ " ^ m ^ "\n└─────────")) msgs
+
+let pull_url url = match Uri.of_string url with
+	| x when x = Uri.empty -> (fun _ _ -> ())
+	| x when Uri.scheme x = Some "msg+http" -> pull_msgs Uri.(with_scheme x (Some "http"))
+	| x when Uri.scheme x = Some "msg+https"-> pull_msgs Uri.(with_scheme x (Some "https"))
+	| x -> pull_index x
+
+let pull_list auths topics =
+	let pull peer_url () = pull_url peer_url auths topics in
+	let open Logarion.Peers in
+	fold_file pull () public_fname;
+	fold_file pull () private_fname
+
+let pull = function "" -> pull_list | x -> pull_url x
+
+open Cmdliner
+
+let pull_term =
+	let authors = Arg.(value & opt (some string) None & info ["a"; "authors"] ~docv:"AUTHORS" ~doc:"select authors") in
+	let topics = Arg.(value & opt (some string) None & info ["t"; "topics"] ~docv:"TOPICS" ~doc:"select topics") in
+	let url = Arg.(value & pos 0 string "" & info [] ~docv:"URL" ~doc:"HTTP URL of Logarion") in
+	Term.(const pull $ url $ authors $ topics),
+	Term.info "pull" ~doc:"pull listed texts"  ~man:[ `S "DESCRIPTION";  `P "Pull texts from archive at address"]
--- a/lib/archive.ml
+++ b/lib/archive.ml
@ -0,0 +1,33 @@
+(*let module S = Set.Make (Text) in*)
+(*let module M = Map.Make (String) in*)
+(*let module I = Map.Make (Id) in*)
+(*let aggr = I.empty, M.empty, M.empty, M.empty in*)
+(*let fn (id, a, t, k) (n,_) =*)
+(* let id = I.add n.Text.uuid n id in*)
+(* let a =*)
+(*   let f e a = M.update (e.Person.name) (function Some v -> Some (S.add n v) | None -> Some (S.singleton n)) a in*)
+(*   Person.Set.fold f n.Text.authors a in*)
+(* let t =*)
+(*   let f e a = M.update e (function Some v -> Some (S.add n v) | None -> Some (S.singleton n)) a in*)
+(*   String_set.fold f (Text.set "Topics" n) t in*)
+(* let k =*)
+(*   let f e a = M.update e (function Some v -> Some (S.add n v) | None -> Some (S.singleton n)) a in*)
+(*   String_set.fold f (Text.set "Keywords" n) k in*)
+(* (id, a, t, k)*)
+
+module Make (Store : Store.T) = struct
+  include Store
+  let predicate fn opt = Option.(to_list @@ map fn opt)
+
+  let authored query_string =
+    let q = Person.Set.of_query @@ String_set.query query_string in
+    fun n -> Person.Set.predicate q n.Text.authors
+
+  let keyworded query_string =
+    let q = String_set.query query_string in
+    fun n -> String_set.(predicate q (Text.set "Keywords" n))
+
+  let topics query_string =
+    let q = String_set.query query_string in
+    fun n -> String_set.(predicate q (Text.set "Topics" n))
+end
--- a/lib/category.ml
+++ b/lib/category.ml
@ -0,0 +1,22 @@
+module Category = struct
+  type t = Unlisted | Published | Invalid | Custom of string
+  let compare = Stdlib.compare
+  let of_string = function "unlisted" | "published" -> Invalid | c -> Custom c
+  let to_string = function Custom c -> c | _ -> ""
+end
+
+include Category
+
+module CategorySet = struct
+  include Set.Make (Category)
+  let of_stringset s = String_set.fold (fun e a -> add (Category.of_string e) a) s empty
+  let of_query q = of_stringset (fst q), of_stringset (snd q)
+  let predicate (inc, exl) set = not (disjoint inc set) && disjoint exl set
+  let of_string x = of_stringset (String_set.of_string x)
+  let to_string set =
+    let f elt a =
+      let s = Category.to_string elt in
+      if a <> "" then a ^ ", " ^ s else s
+    in
+    fold f set ""
+end
--- a/lib/date.ml
+++ b/lib/date.ml
@ -0,0 +1,8 @@
+type t = { created: Ptime.t option; edited: Ptime.t option }
+let compare = compare
+let rfc_string date = match date with Some t -> Ptime.to_rfc3339 t | None -> ""
+let of_string (rfc : string) = match Ptime.of_rfc3339 rfc with Ok (t,_,_) -> Some t | Error _ -> None
+let listing date = if Option.is_some date.edited then date.edited else date.created
+let pretty_date = function
+  | Some t -> Ptime.to_date t |> fun (y, m, d) -> Printf.sprintf "%04d-%02d-%02d" y m d
+  | None -> ""
--- a/lib/dune
+++ b/lib/dune
@ -0,0 +1,4 @@
+(library
+ (name        logarion)
+ (public_name logarion)
+ (libraries ptime uuidm uri re.str bos text_parse text_parse.parsers msgpck))
--- a/lib/file_store.ml
+++ b/lib/file_store.ml
@ -0,0 +1,166 @@
+type t = string
+type item_t = string
+type archive_t = {
+	name: string; archivists: Person.Set.t; id: Id.t;
+	kv: string Store.KV.t; store: t }
+type record_t = Text.t * item_t
+
+let extension = ".txt"
+
+let to_string f =
+	let ic = open_in f in
+	let n = in_channel_length ic in
+	let s = Bytes.create n in
+	really_input ic s 0 n;
+	close_in ic;
+	Bytes.to_string s
+
+let file path content = let out = open_out path in
+	output_string out content; close_out out
+
+let (//) a b = a ^ "/" ^ b
+
+let to_text path =
+	if Filename.extension path = extension then
+		(to_string path |> Text.of_string |> Result.map_error (fun m -> path ^": "^ m))
+	else Error "Not txt"
+
+let newest (a,_pa) (b,_pb) = Text.newest a b
+let oldest (a,_pa) (b,_pb) = Text.oldest a b
+
+let list_iter fn {store;_} paths =
+	let link f = match to_text (Filename.concat store f)
+		with Ok t -> fn store t f | Error s -> prerr_endline s in
+	List.iter link paths
+
+let iter_valid_text pred fn p =
+	match to_text p with Error _ -> () | Ok t -> if pred t then fn (t, p)
+
+let fold_valid_text pred fn acc p =
+	match to_text p with Error _ -> acc | Ok t -> if pred t then fn acc (t, p) else acc
+
+let list_fs dir =
+	let rec loop result = function
+		| [] -> result
+		| f::fs when Sys.is_directory f ->
+			Array.map (Filename.concat f) (Sys.readdir f)
+			|> Array.to_list |> List.append fs |> loop result
+		| f::fs -> loop (f::result) fs
+	in loop [] [dir]
+
+let list_take n =
+	let rec take acc n = function [] -> []
+		| x::_ when n = 1 -> x::acc
+		| x::xs -> take (x::acc) (n-1) xs
+	in take [] n
+
+let iter ?(predicate=fun _ -> true) ?order ?number fn {store;_} =
+	match order with
+	| None -> List.iter (iter_valid_text predicate fn) @@ list_fs store
+	| Some comp ->
+		List.iter fn
+		@@ (match number with None -> (fun x -> x) | Some n -> list_take n)
+		@@ List.fast_sort comp
+		@@ List.fold_left (fold_valid_text predicate (fun a e -> List.cons e a)) []
+		@@ list_fs store
+
+let fold ?(predicate=fun _ -> true) ?order ?number fn acc {store;_} =
+	match order with
+	| None -> List.fold_left (fold_valid_text predicate fn) acc @@ list_fs store
+	| Some comp ->
+		List.fold_left fn acc
+		@@ (match number with None -> (fun x -> x) | Some n -> list_take n)
+		@@ List.fast_sort comp
+		@@ List.fold_left (fold_valid_text predicate (fun a e -> List.cons e a)) []
+		@@ list_fs store
+
+let with_id { store; _ } id =
+	let matched acc path =
+		match to_text path with
+		| Error x -> prerr_endline x; acc
+		| Ok text when text.Text.uuid <> id -> acc
+		| Ok text ->
+			match acc with
+			| Ok None -> Ok (Some text)
+			| Ok (Some prev) -> if prev = text then acc else Error [text; prev]
+			| Error x -> Error (text :: x)
+	in List.fold_left matched (Ok None) (list_fs store)
+
+module Directory = struct
+	let print ?(descr="") dir result =
+		let () = match result with
+			| Ok true -> print_endline ("Created " ^ descr ^ " directory " ^ dir)
+			| Ok false -> print_endline ("Using existing " ^ descr ^ " directory " ^ dir)
+			| Error (`Msg msg) -> prerr_endline @@ "Failed making " ^ descr ^ ". " ^ msg
+		in
+		result
+
+	let directory dir = Result.bind (Fpath.of_string dir) Bos.OS.Dir.create
+
+	let rec directories = function
+		| [] -> Ok ()
+		| (d, descr)::tl ->
+			match directory d |> print ~descr d with
+			| Ok _ -> directories tl
+			| Error _ -> Error (d, descr)
+end
+
+let copy ?(recursive = false) src dst =
+	Bos.OS.Cmd.run (Bos.Cmd.(v "cp" %% (on recursive @@ v "-r") % src % dst))
+
+let versioned_basename_of_title ?(version=0) repo extension (title : string) =
+	let basename = Text.string_alias title in
+	let rec next version =
+		let candidate = repo // basename ^ "." ^ string_of_int version ^ extension in
+		if Sys.file_exists candidate then next (succ version) else candidate
+	in
+	next version
+
+let uuid_filename repo extension text =
+	let basename = Text.alias text in
+	let candidate = repo // String.sub (Id.to_string text.uuid) 0 6 ^ "." ^ basename ^ extension in
+	if Sys.file_exists candidate then Error "Name clash, try again" else Ok candidate
+
+let with_text {store;_} new_text =
+	Result.bind (uuid_filename store extension new_text) @@
+	fun path ->
+		try file path (Text.to_string new_text); Ok (path, new_text) with Sys_error s -> Error s
+
+let basic_config () =
+	"Archive-Name: "
+	^ "\nArchive-ID: " ^ Id.(generate () |> to_string)
+	^ "\nArchivists: " ^ Bos.OS.Env.opt_var "USER" ~absent:""
+	|> Bytes.of_string
+
+let init ?(dotdir=".logarion/") () =
+	match Directory.directories [dotdir, "dotdir"] with
+	| Error (_dir, _desc) -> ()
+	| Ok () ->
+		let config_file =
+			open_out_gen [Open_creat; Open_excl; Open_wronly]
+				0o700 (dotdir // "config") in
+		output_bytes config_file (basic_config ());
+		close_out config_file
+
+module Config = struct
+	type t = archive_t
+	let key_value k v a = match k with
+		| "Archive-Name" -> { a with name = String.trim v }
+		| "Archive-ID" -> { a with id = Option.get (Id.of_string (String.trim v)) }
+		| "Archivists" -> { a with archivists = Person.Set.of_string v }
+		| _ -> { a with kv = Store.KV.add k (String.trim v) a.kv }
+end
+
+let of_path store =
+	let open Text_parse in
+	let subsyntaxes = [| (module Parsers.Key_value.Make (Config) : Parser.S with type t = Config.t); (module Parsers.Key_value.Make (Config)); |] in
+	let of_string text acc = Parser.parse subsyntaxes { text; pos = 0; right_boundary = String.length text - 1 } acc in
+	Ok (
+		of_string (to_string @@ store ^ "/.logarion/config") {
+			name = "";
+			archivists = Person.Set.empty;
+			id = Id.nil;
+			kv = Store.KV.empty;
+			store = try Sys.getenv "LOGARION_DIR" with Not_found -> "."
+		}
+	)
--- a/lib/header_pack.ml
+++ b/lib/header_pack.ml
@ -0,0 +1,84 @@
+type info_t = { version: int; name: string; archivists: string list }
+type text_t = { id: Msgpck.t; time: Msgpck.t; title: Msgpck.t; authors: Msgpck.t }
+type t = { info: info_t; fields: string list; texts: Msgpck.t; peers: Msgpck.t }
+
+let of_id id = Msgpck.Bytes (Id.to_bytes id)
+let to_id pck_id = Id.of_bytes Msgpck.(to_bytes pck_id)
+
+let person p = Msgpck.String (Person.to_string p)
+let persons ps = List.rev @@ Person.Set.fold (fun p a -> person p :: a) ps []
+
+let of_set field t =
+	List.rev @@ String_set.fold (fun s a -> Msgpck.String s :: a) (Text.set field t) []
+
+let date = function
+	| None -> Int32.zero
+	| Some date ->
+		let days, ps = Ptime.Span.to_d_ps (Ptime.to_span date) in
+		Int32.add Int32.(mul (of_int days) 86400l) Int64.(to_int32 (div ps 1000000000000L))
+
+let to_sec = function
+	Msgpck.Int i -> Int32.of_int i | Msgpck.Uint32 i -> i | x -> Msgpck.to_uint32 x
+
+let public_peers () =
+	Peers.fold_file (fun x a -> Msgpck.String x :: a) [] Peers.public_fname
+
+let fields = Msgpck.(List [String "id"; String "time";  String "title"; String "authors"; String "topics"])
+let to_fields fieldpack = List.map Msgpck.to_string (Msgpck.to_list fieldpack)
+
+let to_pack a t =
+	let open Text in
+	Msgpck.(List [
+		Bytes (Id.to_bytes t.uuid); of_uint32 (date (Date.listing t.date));
+		String t.title; List (persons t.authors); List (of_set "topics" t)
+	]) :: a
+
+let pack_filename ?(filename="index.pck") archive =
+	let dir = Store.KV.find "Export-Dir" archive.File_store.kv in (*raises Not_found*)
+	dir ^ "/" ^ filename
+
+let to_info = function
+	| Msgpck.List (v::n::a::[]) ->
+		let archivists = List.map Msgpck.to_string (Msgpck.to_list a) in
+		Msgpck.({version = to_int v; name = to_string n; archivists})
+	| _ -> invalid_arg "Pack header"
+
+let unpack = function
+	| Msgpck.List (i::f::texts::[]) ->
+		Some { info = to_info i; fields = to_fields f; texts; peers = Msgpck.List [] }
+	| Msgpck.List (i::f::texts::peers::[]) ->
+		Some { info = to_info i; fields = to_fields f; texts; peers }
+	| _ -> None
+
+let list filename = try
+	let texts_list = function
+	| Msgpck.List (_info :: _fields :: [texts]) -> Msgpck.to_list texts
+	| _ -> prerr_endline "malformed feed"; [] in
+	let _pos, data = Msgpck.StringBuf.read @@ File_store.to_string filename in
+	Ok (texts_list data)
+	with Not_found -> Error "unspecified export dir"
+
+let contains text = function
+	| Msgpck.List (id::_time::title::_authors::_topics::[]) ->
+		(match Id.of_bytes (Msgpck.to_bytes id) with
+		 | None -> prerr_endline ("Invalid id for " ^ Msgpck.to_string title); false
+		 | Some id -> text.Text.uuid = id)
+	| _ -> prerr_endline ("Invalid record pattern"); false
+
+let pack archive records =
+	let header_pack = List.fold_left to_pack [] records in
+	let info = Msgpck.(List [Int 0; String archive.File_store.name; List (persons archive.archivists)]) in
+	Bytes.to_string @@ Msgpck.Bytes.to_string
+		(List [info; fields; Msgpck.List header_pack; Msgpck.List (public_peers ())])
+
+let add archive records =
+	let fname = pack_filename archive in
+	let append published (t, _f) = if List.exists (contains t) published then published else to_pack published t in
+	match list fname with Error e -> prerr_endline e | Ok published_list ->
+		let header_pack = List.fold_left append published_list records in
+		let archive = Msgpck.(List [Int 0; String archive.File_store.name;
+			List (persons archive.archivists)]) in
+		File_store.file fname @@ Bytes.to_string
+			@@ Msgpck.Bytes.to_string (List [archive; fields; Msgpck.List header_pack])
+
+let unpublish _archive _records = ()
--- a/lib/id.ml
+++ b/lib/id.ml
@ -0,0 +1,9 @@
+let random_state = Random.State.make_self_init ()
+type t = Uuidm.t
+let compare = Uuidm.compare
+let to_string = Uuidm.to_string
+let of_string = Uuidm.of_string
+let to_bytes = Uuidm.to_bytes
+let of_bytes = Uuidm.of_bytes
+let generate ?(random_state=random_state) = Uuidm.v4_gen random_state
+let nil = Uuidm.nil
--- a/lib/peers.ml
+++ b/lib/peers.ml
@ -0,0 +1,9 @@
+let public_fname = "peers.pub.conf"
+let private_fname = "peers.priv.conf"
+
+let fold_file fn init file = match open_in file with
+	| exception (Sys_error msg) -> prerr_endline msg; init
+	| file ->
+		let rec read acc = try read (fn (input_line file) acc)
+			with End_of_file -> close_in file; acc in
+		read init
--- a/lib/person.ml
+++ b/lib/person.ml
@ -0,0 +1,31 @@
+module Person = struct
+  type name_t = string
+  type address_t = Uri.t
+  type t = { name: name_t; addresses: address_t list }
+  let empty = { name = ""; addresses = [] }
+  let compare = Stdlib.compare
+  let to_string p = List.fold_left (fun a e -> a^" <"^Uri.to_string e^">") p.name p.addresses
+  let of_string s = match String.trim s with "" -> empty | s ->
+    match Re.Str.(split (regexp " *< *") s) with
+    | [] -> empty
+    | [n] -> let name = String.trim n in { empty with name }
+    | n::adds ->
+      let name = String.trim n in
+      let addresses = List.map (fun f -> Uri.of_string @@ String.(sub f 0 (length f -1))) adds in
+      { name; addresses }
+end
+
+include Person
+
+module Set = struct
+  include Set.Make(Person)
+  let to_string ?(pre="") ?(sep=", ") s =
+    let str = Person.to_string in
+    let j x a = match a, x with "",_ -> str x | _,x when x = Person.empty -> a | _ -> a^sep^str x in
+    fold j s pre
+  let of_string s = of_list (List.map Person.of_string (String_set.list_of_csv s))
+
+  let of_stringset s = String_set.fold (fun e a -> union (of_string e) a) s empty
+  let of_query q = of_stringset (fst q), of_stringset (snd q)
+  let predicate (inc, exl) set = not (disjoint inc set) && disjoint exl set
+end
--- a/lib/store.ml
+++ b/lib/store.ml
@ -0,0 +1,17 @@
+module KV = Map.Make (String)
+
+module type T = sig
+	type t
+	type item_t
+	type archive_t = { name: string; archivists: Person.Set.t; id: Id.t; kv: string KV.t; store: t }
+	type record_t = Text.t * item_t
+	val of_path: string -> (archive_t, string) result
+	val newest: record_t -> record_t -> int
+	val oldest: record_t -> record_t -> int
+	val with_id: archive_t -> Id.t -> (Text.t option, Text.t list) result
+	val with_text: archive_t -> Text.t -> (string * Text.t, string) result
+	val iter: ?predicate:(Text.t -> bool) -> ?order:(record_t -> record_t -> int) -> ?number:int
+		-> (record_t -> unit) -> archive_t -> unit
+	val fold: ?predicate:(Text.t -> bool) -> ?order:(record_t -> record_t -> int) -> ?number:int
+		-> ('a -> record_t -> 'a) -> 'a -> archive_t -> 'a
+end
--- a/lib/string_set.ml
+++ b/lib/string_set.ml
@ -0,0 +1,15 @@
+include Set.Make(String)
+
+let list_of_csv x = Re.Str.(split (regexp " *, *")) (String.trim x)
+let of_string x = of_list (list_of_csv x)
+let to_string ?(pre="") ?(sep=", ") s =
+  let j a x = match a, x with "", _ -> x | _, "" -> a | _ -> a ^ sep ^ x in
+  fold (fun x acc -> j acc x) s pre
+
+let query string =
+  let partition (include_set, exclude_set) elt =
+    if String.get elt 0 = '!' then (include_set, add String.(sub elt 1 (length elt - 1)) exclude_set)
+    else (add elt include_set, exclude_set) in
+  List.fold_left partition (empty, empty) @@ list_of_csv string
+
+let predicate (inc, exl) set = not (disjoint inc set) && disjoint exl set
--- a/lib/text.ml
+++ b/lib/text.ml
@ -0,0 +1,102 @@
+module String_map = Map.Make (String)
+type t = {
+    title: string;
+    uuid: Id.t;
+    authors: Person.Set.t;
+    date: Date.t;
+    string_map: string String_map.t;
+    stringset_map: String_set.t String_map.t;
+    body: string;
+  }
+
+let blank ?(uuid=(Id.generate ())) () = {
+    title = "";
+    uuid;
+    authors = Person.Set.empty;
+    date = Date.({ created = None; edited = None});
+    string_map = String_map.empty;
+    stringset_map = String_map.empty;
+    body = "";
+  }
+
+let compare = Stdlib.compare
+let newest a b = Date.(compare a.date b.date)
+let oldest a b = Date.(compare b.date a.date)
+let str key m = try String_map.find (String.lowercase_ascii key) m.string_map with Not_found -> ""
+let set key m = try String_map.find (String.lowercase_ascii key) m.stringset_map with Not_found -> String_set.empty
+let str_set key m = String_set.to_string @@ set key m
+let with_str_set m key str = { m with stringset_map = String_map.add (String.lowercase_ascii key) (String_set.of_string str) m.stringset_map }
+
+let with_kv x (k,v) =
+  let trim = String.trim in
+  match String.lowercase_ascii k with
+  | "body" -> { x with body = String.trim v }
+  | "title"-> { x with title = trim v }
+  | "id"   -> (match Id.of_string v with Some id -> { x with uuid = id } | None -> x)