diff options
Diffstat (limited to 'emacs/guix-read.el')
| -rw-r--r-- | emacs/guix-read.el | 123 |
1 files changed, 34 insertions, 89 deletions
diff --git a/emacs/guix-read.el b/emacs/guix-read.el index e60af9c2f7..3bc7b16587 100644 --- a/emacs/guix-read.el +++ b/emacs/guix-read.el @@ -26,95 +26,40 @@ (require 'guix-help-vars) (require 'guix-utils) -(require 'guix-base) - -(defun guix-read-file-name (prompt &optional dir default-filename - mustmatch initial predicate) - "Read file name. -This function is similar to `read-file-name' except it also -expands the file name." - (expand-file-name (read-file-name prompt dir default-filename - mustmatch initial predicate))) - -(defmacro guix-define-reader (name read-fun completions prompt) - "Define NAME function to read from minibuffer. -READ-FUN may be `completing-read', `completing-read-multiple' or -another function with the same arguments." - `(defun ,name (&optional prompt initial-contents) - (,read-fun ,(if prompt - `(or prompt ,prompt) - 'prompt) - ,completions nil nil initial-contents))) - -(defmacro guix-define-readers (&rest args) - "Define reader functions. - -ARGS should have a form [KEYWORD VALUE] ... The following -keywords are available: - - - `completions-var' - variable used to get completions. - - - `completions-getter' - function used to get completions. - - - `single-reader', `single-prompt' - name of a function to read - a single value, and a prompt for it. - - - `multiple-reader', `multiple-prompt' - name of a function to - read multiple values, and a prompt for it. - - - `multiple-separator' - if specified, another - `<multiple-reader-name>-string' function returning a string - of multiple values separated the specified separator will be - defined." - (let (completions-var - completions-getter - single-reader - single-prompt - multiple-reader - multiple-prompt - multiple-separator) - - ;; Process the keyword args. - (while (keywordp (car args)) - (pcase (pop args) - (`:completions-var (setq completions-var (pop args))) - (`:completions-getter (setq completions-getter (pop args))) - (`:single-reader (setq single-reader (pop args))) - (`:single-prompt (setq single-prompt (pop args))) - (`:multiple-reader (setq multiple-reader (pop args))) - (`:multiple-prompt (setq multiple-prompt (pop args))) - (`:multiple-separator (setq multiple-separator (pop args))) - (_ (pop args)))) - - (let ((completions - (cond ((and completions-var completions-getter) - `(or ,completions-var - (setq ,completions-var - (funcall ',completions-getter)))) - (completions-var - completions-var) - (completions-getter - `(funcall ',completions-getter))))) - `(progn - ,(when (and completions-var - (not (boundp completions-var))) - `(defvar ,completions-var nil)) - - ,(when single-reader - `(guix-define-reader ,single-reader completing-read - ,completions ,single-prompt)) - - ,(when multiple-reader - `(guix-define-reader ,multiple-reader completing-read-multiple - ,completions ,multiple-prompt)) - - ,(when (and multiple-reader multiple-separator) - (let ((name (intern (concat (symbol-name multiple-reader) - "-string")))) - `(defun ,name (&optional prompt initial-contents) - (guix-concat-strings - (,multiple-reader prompt initial-contents) - ,multiple-separator)))))))) +(require 'guix-backend) +(require 'guix-guile) + + +;;; Receivable lists of packages, lint checkers, etc. + +(guix-memoized-defun guix-graph-type-names () + "Return a list of names of available graph node types." + (guix-eval-read (guix-make-guile-expression 'graph-type-names))) + +(guix-memoized-defun guix-refresh-updater-names () + "Return a list of names of available refresh updater types." + (guix-eval-read (guix-make-guile-expression 'refresh-updater-names))) + +(guix-memoized-defun guix-lint-checker-names () + "Return a list of names of available lint checkers." + (guix-eval-read (guix-make-guile-expression 'lint-checker-names))) + +(guix-memoized-defun guix-package-names () + "Return a list of names of available packages." + (sort + ;; Work around <https://github.com/jaor/geiser/issues/64>: + ;; list of strings is parsed much slower than list of lists, + ;; so we use 'package-names-lists' instead of 'package-names'. + + ;; (guix-eval-read (guix-make-guile-expression 'package-names)) + + (mapcar #'car + (guix-eval-read (guix-make-guile-expression + 'package-names-lists))) + #'string<)) + + +;;; Readers (guix-define-readers :completions-var guix-help-system-types |