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Re: [NonGNU ELPA] New package: hyperdrive (repast)

From: Philip Kaludercic
Subject: Re: [NonGNU ELPA] New package: hyperdrive (repast)
Date: Sun, 03 Sep 2023 08:18:14 +0000

Philip Kaludercic <philipk@posteo.net> writes:

> Joseph Turner <joseph@ushin.org> writes:
>>> My main difficulty is understanding what Hyperdrive is...
>> Hyperdrive is a p2p file-sharing tool (like Dropbox, but FLOSS and with
>> no third-party intermediary; like Bittorrent, but mutable and versioned;
>> like IPFS, but without CIDs and faster for mutable data).
>> User story: Alice creates a new hyperdrive and adds some files. Her
>> computer returns a public key URL that uniquely identies the hyperdrive.
>> Alice shares that URL with Bob, who can then download Alice's files
>> directly from Alice's computer (no third-party servers are required to
>> route the connection - they find each other using a DHT or using mDNS if
>> they're on the same LAN). Bob can download some of Alice's without
>> having to load her whole drive.
>> Data is distributed on the network; once Bob has loaded Alice's files,
>> Carol can get them from Bob even when Alice is offline. Drives are
>> mutable; When Alice adds/removes/changes files in the drive, Bob can
>> refresh her drive on his machine to get the latest changes. Drives are
>> versioned; anyone with the URL can "check out" prior versions of Alice's
>> drive to see what her files used to look like.
>> There's more info in the manual, especially in the Concepts section:
>> https://ushin.org/hyperdrive/hyperdrive-manual.html#Concepts
>> There's also this talk at LibrePlanet 2023. Comparison of peer-to-peer
>> protocols starts @36:49:
>> https://media.libreplanet.org/u/libreplanet/m/emacs-for-p2p-deliberation/
> Thanks!
>>> The second issue I have is that there is quite a lot of code, and
>>> I'd like to take a look at everything before I add anything.
>> Take your time. I'm happy to get on a videocall to go through the code
>> together with you.
> That is not necessary, I'll understand what is going on, the issue is
> just finding the time to at least skim through everything once.
>> Thank you!
>> Joseph

Done.  Overall it looks fine, and I'll add the
package to NonGNU ELPA, it would be nice if you could take a look and
consider addressing the changes I propose and comments I made:

diff --git a/hyperdrive-lib.el b/hyperdrive-lib.el
index 43ca32e3cb..d77b3d1e3c 100644
--- a/hyperdrive-lib.el
+++ b/hyperdrive-lib.el
@@ -1034,6 +1034,8 @@ Affected by option `hyperdrive-reuse-buffers', which see."
   "Call `message' with MESSAGE and ARGS, prefixing MESSAGE with 
   (apply #'message (concat "Hyperdrive: " message) args))
+;; Might be nice to use `define-error' for `condition-case' to detect
+;; this as a specific error type?
 (defun hyperdrive-error (string &rest args)
   "Call `error' with STRING and ARGS, prefixing STRING with \"Hyperdrive:\"."
   (apply #'error (concat "Hyperdrive: " string) args))
@@ -1099,6 +1101,8 @@ When BASE is non-nil, PATH will be expanded against BASE 
 ;; of Emacs (going back to the version we declare support for), for
 ;; features that aren't present in `compat'.
+;; If there is anything you'd like to see in Compat, please mention it.
   (if (< emacs-major-version 29)
       (define-derived-mode hyperdrive-clean-mode fundamental-mode "Clean"
diff --git a/hyperdrive-mirror.el b/hyperdrive-mirror.el
index caa9e881b7..27113c5052 100644
--- a/hyperdrive-mirror.el
+++ b/hyperdrive-mirror.el
@@ -166,7 +166,7 @@ predicate and set NO-CONFIRM to t."
 ;;;; Mode
 (defvar-keymap hyperdrive-mirror-mode-map
-  :parent  tabulated-list-mode-map
+  :parent tabulated-list-mode-map
   :doc "Local keymap for `hyperdrive-mirror-mode' buffers."
   "C-c C-c"   #'hyperdrive-mirror-do-upload)
diff --git a/hyperdrive-vars.el b/hyperdrive-vars.el
index afc3cf6ef5..ba59e042d9 100644
--- a/hyperdrive-vars.el
+++ b/hyperdrive-vars.el
@@ -39,18 +39,15 @@
 (defcustom hyperdrive-storage-location
   (expand-file-name "~/.local/share/hyper-gateway-nodejs/")
   "Location to store Hypercore data."
-  :type '(file :must-match t)
-  :group 'hyperdrive)
+  :type '(file :must-match t))
 (defcustom hyperdrive-hyper-gateway-port 4973
   "Port on which to run the hyper-gateway server."
-  :type 'natnum
-  :group 'hyperdrive)
+  :type 'natnum)
 (defcustom hyperdrive-honor-auto-mode-alist t
   "If non-nil, use file extension of hyperdrive file to set `major-mode'."
-  :type 'boolean
-  :group 'hyperdrive)
+  :type 'boolean)
 (defcustom hyperdrive-persist-location nil
   "Location where `persist' will store data.
@@ -58,19 +55,18 @@
 - `hyperdrive-hyperdrives'
 - `hyperdrive-version-ranges'"
   :type '(choice (const :tag "Use default persist location" nil)
-                 (file :tag "Custom location"))
-  :group 'hyperdrive)
-(defcustom hyperdrive-download-directory (expand-file-name
-                                          (if (bound-and-true-p 
-                                              (if (stringp 
-                                                  eww-download-directory
-                                                (funcall 
-                                            "~/"))
+                 (file :tag "Custom location")))
+(defcustom hyperdrive-download-directory
+  (expand-file-name
+   (if (bound-and-true-p eww-download-directory)
+       (if (stringp eww-download-directory)
+           eww-download-directory
+         (funcall eww-download-directory))
+     "~/"))
   "Location where `hyperdrive-download-url' will download files.
 Defaults to `eww-download-directory'."
-  :type '(file :must-match t)
-  :group 'hyperdrive)
+  :type '(file :must-match t))
 (defvar hyperdrive-timestamp-format-string)
 (defcustom hyperdrive-timestamp-format "%x %X"
@@ -78,20 +74,20 @@ Defaults to `eww-download-directory'."
 Passed to `format-time-string', which see."
   :type 'string
   :set (lambda (option value)
-         (set option value)
+         (set-default option value)
          (setf hyperdrive-timestamp-format-string
                (format "%%%ds"
                        ;; FIXME: This value varies based on current
                        ;;        time. (format-time-string "%-I") will
                        ;;        be one or two characters long
                        ;;        depending on the time of day
-                       (string-width (format-time-string value)))))
-  :group 'hyperdrive)
+                       (string-width (format-time-string value))))))
 (defcustom hyperdrive-directory-display-buffer-action
   "Display buffer action for hyperdrive directories.
 Passed to `display-buffer', which see."
+  ;; Perhaps use `display-buffer--action-custom-type'?
   :type '(choice (const :tag "Same window" (display-buffer-same-window))
                  (const :tag "Pop up window" (display-buffer-pop-up-window))
                  (sexp :tag "Other"))
@@ -103,13 +99,11 @@ Passed to `display-buffer', which see."
 Passed to `display-buffer', which see."
   :type '(choice (const :tag "Same window" (display-buffer-same-window))
                  (const :tag "Pop up window" (display-buffer-pop-up-window))
-                 (sexp :tag "Other"))
-  :group 'hyperdrive)
+                 (sexp :tag "Other")))
-(defcustom hyperdrive-column-headers 't
+(defcustom hyperdrive-column-headers t
   "Display column headers in `hyperdrive-dir' and `hyperdrive-history' 
-  :type 'boolean
-  :group 'hyperdrive)
+  :type 'boolean)
 (defcustom hyperdrive-default-host-format
   '(petname nickname domain seed short-key public-key)
@@ -125,8 +119,7 @@ used."
                   (const :tag "DNSLink domain" domain)
                   (const :tag "Seed" seed)
                   (const :tag "Shortened public key" short-key)
-                  (const :tag "Full public key" public-key)))
-  :group 'hyperdrive)
+                  (const :tag "Full public key" public-key))))
 (defcustom hyperdrive-stream-player-command "mpv --force-window=immediate %s"
   "Command used to play streamable URLs externally.
@@ -135,19 +128,17 @@ quoted, because the arguments are passed directly rather 
 through a shell)."
   :type '(choice (const :tag "MPV" "mpv --force-window=immediate %s")
                  (const :tag "VLC" "vlc %s")
-                 (string :tag "Other command"))
-  :group 'hyperdrive)
+                 (string :tag "Other command")))
 (defcustom hyperdrive-queue-size 2
   "Default size of request queues."
   ;; TODO: Use this elsewhere also.
-  :type 'integer
-  :group 'hyperdrive)
+  :type 'integer)                      ;natnum?
 (defcustom hyperdrive-render-html t
   "Render HTML hyperdrive files with EWW."
-  :type 'boolean
-  :group 'hyperdrive)
+  :type 'boolean)
 (defcustom hyperdrive-reuse-buffers 'any-version
   "How to reuse buffers when showing entries.
diff --git a/hyperdrive.el b/hyperdrive.el
index f3024417ae..c94da62fb0 100644
--- a/hyperdrive.el
+++ b/hyperdrive.el
@@ -2,9 +2,9 @@
 ;; Copyright (C) 2022 Joseph Turner <joseph@ushin.org>
-;; Author: Joseph Turner
+;; Author: Joseph Turner <joseph@ushin.org>
 ;; Author: Adam Porter <adam@alphapapa.net>
-;; Maintainer: Joseph Turner <joseph@ushin.org>
+;; Maintainer: Joseph Turner <~ushin/ushin@lists.sr.ht>
 ;; Created: 2022
 ;; Version: 0.2-pre
 ;; Package-Requires: ((emacs "27.1") (map "3.0") (compat "") (plz 
"0.7") (persist "0.5"))

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