feat(pack)!: use lazy.nvim

This commit replaces packer.nvim with lazy.nvim to make the lazy-load
based package management painless, with lazy.nvim's automatic module
lazy-loading and lockfile support.

Squashed commit of the following:

commit 4b972111b3f91f0b385a6d58640c7751ff8ecd22
Author: sefidel <contact@sefidel.net>
Date:   Sun Oct 1 20:43:42 2023 +0900

    wip: remove leftover mentions to packer.nvim

commit 536106e405b9ec20084b9735a937e80699cdcbb8
Author: sefidel <contact@sefidel.net>
Date:   Sun Oct 1 20:33:44 2023 +0900

    wip: get rid of luarocks macros

commit 6cf35948e4a3081446a9c9414bf350661444df72
Author: sefidel <contact@sefidel.net>
Date:   Sun Oct 1 20:18:51 2023 +0900

    wip: working lazy.nvim checkpoint

commit 407056efd6de976b4d91162c70e3b49cca17664e
Author: sefidel <contact@sefidel.net>
Date:   Sun Oct 1 13:38:43 2023 +0900

    wip: replace packer.nvim with lazy.nvim

1 files changed, 7 insertions, 36 deletions

diff --git a/fnl/nvrc/macro/pack.fnl b/fnl/nvrc/macro/pack.fnl
index 7f76a0d..074723e 100644
--- a/fnl/nvrc/macro/pack.fnl
+++ b/fnl/nvrc/macro/pack.fnl
@@ -7,16 +7,14 @@
 (fn tbl? [x]
   (= :table (type x)))
 
-(local {: format} string)
 (local {: insert} table)
 
 (global nvrc/pack [])
-(global nvrc/rock [])
 
 (lambda pack [identifier ?options]
   "Returns a mixed table with the identifier as the first sequential element
   and options as hash-table items.
-  See https://github.com/wbthomason/packer.nvim for information about the
+  See https://github.com/folke/lazy.nvim for information about the
   options."
   (assert-compile (str? identifier) "expected string for identifier" identifier)
   (assert-compile (or (nil? ?options) (tbl? ?options))
@@ -24,8 +22,8 @@
   (let [options (or ?options {})
         options (collect [k v (pairs options)]
                          (if
-                           (= k :req) (values :config (format "require('nvrc.packs.%s')" v))
-                           (= k :init) (values :config (format "require('%s').setup({})" v))
+                           (= k :req) (values :config `#(require (string.format "nvrc.packs.%s" ,v)))
+                           (= k :init) (values :config `#((. (require ,v) :setup) {}))
                            (values k v)))]
     (doto options
           (tset 1 identifier))))
@@ -33,47 +31,20 @@
 (lambda pack! [identifier ?options]
   "Declares a plugin with its options.
   This is a mixed table saved on the global compile-time variable nvrc/pack.
-  See https://github.com/wbthomason/packer.nvim for information about the
+  See https://github.com/folke/lazy.nvim for information about the
   options."
   (assert-compile (str? identifier) "expected string for identifier" identifier)
   (assert-compile (or (nil? ?options) (tbl? ?options))
                   "expected table for options" ?options)
   (insert nvrc/pack (pack identifier ?options)))
 
-(lambda rock [identifier ?options]
-  "Returns a mixed table with the identifier as the first sequential element
-  and options as hash-table items.
-  See https://github.com/wbthomason/packer.nvim for information about the
-  options."
-  (assert-compile (str? identifier) "expected string for identifier" identifier)
-  (assert-compile (or (nil? ?options) (tbl? ?options))
-                  "expected table for options" ?options)
-  (let [options (or ?options {})]
-    (doto options
-          (tset 1 identifier))))
-
-(lambda rock! [identifier ?options]
-  "Declares a plugin with its options.
-  This is a mixed table saved on the global compile-time variable nvrc/rock.
-  See https://github.com/wbthomason/packer.nvim for information about the
-  options."
-  (assert-compile (str? identifier) "expected string for identifier" identifier)
-  (assert-compile (or (nil? ?options) (tbl? ?options))
-                  "expected table for options" ?options)
-  (insert nvrc/rock (rock identifier ?options)))
-
 (lambda unpack! []
   "Initializes the plugin manager with the previously declared plugins and
   their options."
-  (let [packs (icollect [_ v (ipairs nvrc/pack)]
-                        `(use ,v))
-        rocks (icollect [_ v (ipairs nvrc/rock)]
-                        `(use_rocks ,v))]
-    `((. (require :packer) :startup) #(do
-                                       ,(unpack (icollect [_ v (ipairs packs) :into rocks] v))))))
+  (let [packs [(unpack (icollect [_ v (ipairs nvrc/pack)]
+                         v))]]
+    `((. (require :lazy) :setup) ,packs)))
 
 {: pack
  : pack!
- : rock
- : rock!
  : unpack!}