feat(editor/fussy): improve completion performance

It seems the fzf-native scoring method can get slow and laggy over
time. It seems the flx-rs method does not, and is overall a bit faster.

However, flx-rs doesn't give exact matches as high of a score as
fzf-native, so scoring might be a bit different than I'm used to. Time
will tell if I'll find it annoying enough to switch back to fzf-native.

Also switch from orderless to fussy's all-completions backed filtering
method. This yields a noticeable improvement in speed, but it does not
support multiple search terms separated by space like orderless does.
Another potential habit I will need to adjust.

modules/editor/siren-fussy.el

@@ -6,16 +6,39 @@
 
 ;;; Code:
 
+;; (use-package orderless
+;;   :commands (orderless-filter))
+
+;; (use-package fzf-native
+;;   :straight (fzf-native :repo "dangduc/fzf-native" :host github
+;;                         :files (:defaults "bin"))
+;;   :config
+;;   (fzf-native-load-dyn))
+
+(use-package flx-rs
+  :straight (flx-rs :repo "jcs-elpa/flx-rs" :fetcher github
+                    :files (:defaults "bin"))
+  :config
+  (flx-rs-load-dyn))
+
 (use-package fussy
-  :ensure t
+  :demand t
   :custom
   (completion-category-overrides nil)
   (completion-ignore-case t)
   (pcomplete-ignore-case t)
 
   (fussy-ignore-case t)
-  (fussy-filter-fn 'fussy-filter-orderless-flex)
-  (fussy-score-fn 'fussy-fzf-native-score)
+
+  (fussy-filter-fn
+   'fussy-filter-default
+   ;; 'fussy-filter-orderless-flex
+   )
+
+  (fussy-score-fn
+   ;; 'fussy-fzf-native-score
+   'flx-rs-score
+   )
 
   :preface
   (defun siren-fussy--company-transform-advice (f &rest args)
@@ -29,14 +52,7 @@
               :around 'siren-fussy--company-transform-advice)
   (setq completion-category-defaults nil))
 
-(use-package orderless
-  :commands (orderless-filter))
 
-(use-package fzf-native
-  :straight (fzf-native :repo "dangduc/fzf-native" :host github
-                        :files (:defaults "bin"))
-  :config
-  (fzf-native-load-dyn))
 
 (provide 'siren-fussy)
 ;;; siren-fussy.el ends here

straight/versions/default.el

@@ -72,6 +72,7 @@
  ("fbthrift" . "52c465de9b6ed37de55ace97d2ceb95a177543cf")
  ("flutter.el" . "b4148db1e6e6822a6a0da1eda3c58affe562d1dc")
  ("flx" . "e3b3f0533e44c5250ce73d728b59a7e96c692b5d")
+ ("flx-rs" . "08156fe15c28a5fd9ef1975ba3a11de26226c90e")
  ("flycheck" . "c955fd6fb970eed5fdecf675369d3d61a41f6c68")
  ("flycheck-package" . "615c1ed8c6fb7c73abec6aaa73d3fef498d231bc")
  ("flycheck-rust" . "a139cd53c5062697e9ed94ad80b803c37d999600")
@@ -79,7 +80,6 @@
  ("forge" . "ed8abdafd8b15852538bbe064fef037345772627")
  ("frame-local" . "7ee1106c3bcd4022f48421f8cb1ef4f995da816e")
  ("fussy" . "314280ae62a907004ce82f8bbbddf8feca497e95")
- ("fzf-native" . "1306de74712e550fabd7c1d8989f556cbbc56a22")
  ("gcmh" . "0089f9c3a6d4e9a310d0791cf6fa8f35642ecfd9")
  ("general.el" . "9651024e7f40a8ac5c3f31f8675d3ebe2b667344")
  ("gh-notify" . "aa4d8bc0c56366d437e7c126e7eedc5938109342")
@@ -151,7 +151,6 @@
  ("ob-go" . "2067ed55f4c1d33a43cb3f6948609d240a8915f5")
  ("ob-http" . "b1428ea2a63bcb510e7382a1bf5fe82b19c104a7")
  ("ob-mermaid" . "b4ce25699e3ebff054f523375d1cf5a17bd0dbaf")
- ("orderless" . "8b9af2796fa0eb87eea4140bc08d16880a493803")
  ("osx-trash" . "af74a2055a15bf4182d8196600f7decd66eec634")
  ("ox-gfm" . "99f93011b069e02b37c9660b8fcb45dab086a07f")
  ("ox-pandoc" . "f8eac5e5692fc44a4724ada43191e7c28a1ccf30")