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;;;; state.lisp -- functions for dealing with client state
(in-package :oneliners.cli)
;;; Config Struct
(defstruct config
handle
api-token
host
shell)
(defvar *config* nil
"Holds a config struct instance.")
(defvar *cache* nil
"Holds cached oneliners as a list.")
;;; GETTING AND SETTING STATE, DYNAMICALLY BOUND
(defun merge-oneliners (new)
"Modifies *CACHE*. Merge updated oneliners into the *cache*, ensuring to remove old versions."
(setf *cache*
(nconc
new
(delete-if
(lambda (old-oneliner)
(find (oneliner-id old-oneliner)
new
:key #'oneliner-id
:test #'equal))
*cache*))))
(defun get-cached (id-or-name)
"Looks up a oneliner instance by ID-OR-NAME using the current binding of *cache*. "
(find id-or-name
*cache*
:key (etypecase id-or-name
(integer #'oneliner-id)
(string #'oneliner-name))
:test #'equal))
;;; LOADING AND SAVING STATE
(defun config-file ()
"Returns the pahtname holding the location of the config file."
(merge-pathnames ".config/oneliners.config" (user-homedir-pathname)))
(defun cached-oneliners-file ()
"Returns the pathname holding the location of the cache."
(merge-pathnames ".cache/oneliners.cache" (user-homedir-pathname)))
(defun wipe-cache ()
"Deletes the cache, if present."
(uiop:delete-file-if-exists (cached-oneliners-file)))
(defun write-config-to-disk ()
(print-to-file *config* (config-file)))
(defun write-cache-to-disk ()
(print-to-file *cache* (cached-oneliners-file)))
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