emacs: Reorganize 'readers' code.
* emacs/guix-base.el (guix-graph-type-names, guix-refresh-updater-names) (guix-lint-checker-names, guix-package-names): Move to... * emacs/guix-read.el: ... here. (guix-read-file-name, guix-define-reader, guix-define-readers): Move to... * emacs/guix-utils.el: ... here.master
Alex Kost
parent
6c40b7b703
commit
b1990426fd
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@ -108,35 +108,6 @@ For the meaning of location, see `guix-find-location'."
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(guix-eval-read (guix-make-guile-expression
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'package-location-string id-or-name)))
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;;; Receivable lists of packages, lint checkers, etc.
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(guix-memoized-defun guix-graph-type-names ()
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"Return a list of names of available graph node types."
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(guix-eval-read (guix-make-guile-expression 'graph-type-names)))
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(guix-memoized-defun guix-refresh-updater-names ()
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"Return a list of names of available refresh updater types."
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(guix-eval-read (guix-make-guile-expression 'refresh-updater-names)))
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(guix-memoized-defun guix-lint-checker-names ()
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"Return a list of names of available lint checkers."
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(guix-eval-read (guix-make-guile-expression 'lint-checker-names)))
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(guix-memoized-defun guix-package-names ()
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"Return a list of names of available packages."
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(sort
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;; Work around <https://github.com/jaor/geiser/issues/64>:
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;; list of strings is parsed much slower than list of lists,
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;; so we use 'package-names-lists' instead of 'package-names'.
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;; (guix-eval-read (guix-make-guile-expression 'package-names))
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(mapcar #'car
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(guix-eval-read (guix-make-guile-expression
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'package-names-lists)))
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#'string<))
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;;; Getting and displaying info about packages and generations
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@ -26,83 +26,40 @@
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(require 'guix-help-vars)
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(require 'guix-utils)
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(require 'guix-base)
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(require 'guix-backend)
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(require 'guix-guile)
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(defun guix-read-file-name (prompt &optional dir default-filename
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mustmatch initial predicate)
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"Read file name.
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This function is similar to `read-file-name' except it also
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expands the file name."
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(expand-file-name (read-file-name prompt dir default-filename
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mustmatch initial predicate)))
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;;; Receivable lists of packages, lint checkers, etc.
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(defmacro guix-define-reader (name read-fun completions prompt)
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"Define NAME function to read from minibuffer.
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READ-FUN may be `completing-read', `completing-read-multiple' or
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another function with the same arguments."
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`(defun ,name (&optional prompt initial-contents)
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(,read-fun ,(if prompt
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`(or prompt ,prompt)
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'prompt)
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,completions nil nil initial-contents)))
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(guix-memoized-defun guix-graph-type-names ()
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"Return a list of names of available graph node types."
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(guix-eval-read (guix-make-guile-expression 'graph-type-names)))
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(defmacro guix-define-readers (&rest args)
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"Define reader functions.
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(guix-memoized-defun guix-refresh-updater-names ()
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"Return a list of names of available refresh updater types."
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(guix-eval-read (guix-make-guile-expression 'refresh-updater-names)))
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ARGS should have a form [KEYWORD VALUE] ... The following
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keywords are available:
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(guix-memoized-defun guix-lint-checker-names ()
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"Return a list of names of available lint checkers."
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(guix-eval-read (guix-make-guile-expression 'lint-checker-names)))
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- `completions-var' - variable used to get completions.
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(guix-memoized-defun guix-package-names ()
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"Return a list of names of available packages."
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(sort
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;; Work around <https://github.com/jaor/geiser/issues/64>:
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;; list of strings is parsed much slower than list of lists,
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;; so we use 'package-names-lists' instead of 'package-names'.
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- `completions-getter' - function used to get completions.
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;; (guix-eval-read (guix-make-guile-expression 'package-names))
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- `single-reader', `single-prompt' - name of a function to read
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a single value, and a prompt for it.
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(mapcar #'car
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(guix-eval-read (guix-make-guile-expression
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'package-names-lists)))
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#'string<))
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- `multiple-reader', `multiple-prompt' - name of a function to
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read multiple values, and a prompt for it.
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- `multiple-separator' - if specified, another
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`<multiple-reader-name>-string' function returning a string
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of multiple values separated the specified separator will be
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defined."
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(guix-keyword-args-let args
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((completions-var :completions-var)
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(completions-getter :completions-getter)
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(single-reader :single-reader)
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(single-prompt :single-prompt)
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(multiple-reader :multiple-reader)
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(multiple-prompt :multiple-prompt)
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(multiple-separator :multiple-separator))
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(let ((completions
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(cond ((and completions-var completions-getter)
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`(or ,completions-var
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(setq ,completions-var
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(funcall ',completions-getter))))
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(completions-var
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completions-var)
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(completions-getter
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`(funcall ',completions-getter)))))
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`(progn
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,(when (and completions-var
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(not (boundp completions-var)))
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`(defvar ,completions-var nil))
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,(when single-reader
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`(guix-define-reader ,single-reader completing-read
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,completions ,single-prompt))
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,(when multiple-reader
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`(guix-define-reader ,multiple-reader completing-read-multiple
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,completions ,multiple-prompt))
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,(when (and multiple-reader multiple-separator)
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(let ((name (intern (concat (symbol-name multiple-reader)
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"-string"))))
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`(defun ,name (&optional prompt initial-contents)
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(guix-concat-strings
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(,multiple-reader prompt initial-contents)
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,multiple-separator))))))))
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;;; Readers
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(guix-define-readers
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:completions-var guix-help-system-types
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@ -232,6 +232,14 @@ Return time value."
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(require 'org)
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(org-read-date nil t nil prompt))
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(defun guix-read-file-name (prompt &optional dir default-filename
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mustmatch initial predicate)
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"Read file name.
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This function is similar to `read-file-name' except it also
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expands the file name."
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(expand-file-name (read-file-name prompt dir default-filename
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mustmatch initial predicate)))
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(defcustom guix-find-file-function #'find-file
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"Function used to find a file.
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The function is called by `guix-find-file' with a file name as a
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@ -396,6 +404,77 @@ See `guix-alist-put' for details."
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"Same as `diff', but use `guix-diff-switches' as default."
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(diff old new (or switches guix-diff-switches) no-async))
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;;; Completing readers definers
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(defmacro guix-define-reader (name read-fun completions prompt)
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"Define NAME function to read from minibuffer.
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READ-FUN may be `completing-read', `completing-read-multiple' or
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another function with the same arguments."
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`(defun ,name (&optional prompt initial-contents)
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(,read-fun ,(if prompt
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`(or prompt ,prompt)
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'prompt)
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,completions nil nil initial-contents)))
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(defmacro guix-define-readers (&rest args)
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"Define reader functions.
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ARGS should have a form [KEYWORD VALUE] ... The following
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keywords are available:
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- `completions-var' - variable used to get completions.
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- `completions-getter' - function used to get completions.
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- `single-reader', `single-prompt' - name of a function to read
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a single value, and a prompt for it.
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- `multiple-reader', `multiple-prompt' - name of a function to
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read multiple values, and a prompt for it.
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- `multiple-separator' - if specified, another
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`<multiple-reader-name>-string' function returning a string
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of multiple values separated the specified separator will be
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defined."
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(guix-keyword-args-let args
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((completions-var :completions-var)
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(completions-getter :completions-getter)
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(single-reader :single-reader)
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(single-prompt :single-prompt)
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(multiple-reader :multiple-reader)
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(multiple-prompt :multiple-prompt)
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(multiple-separator :multiple-separator))
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(let ((completions
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(cond ((and completions-var completions-getter)
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`(or ,completions-var
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(setq ,completions-var
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(funcall ',completions-getter))))
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(completions-var
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completions-var)
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(completions-getter
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`(funcall ',completions-getter)))))
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`(progn
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,(when (and completions-var
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(not (boundp completions-var)))
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`(defvar ,completions-var nil))
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,(when single-reader
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`(guix-define-reader ,single-reader completing-read
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,completions ,single-prompt))
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,(when multiple-reader
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`(guix-define-reader ,multiple-reader completing-read-multiple
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,completions ,multiple-prompt))
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,(when (and multiple-reader multiple-separator)
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(let ((name (intern (concat (symbol-name multiple-reader)
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"-string"))))
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`(defun ,name (&optional prompt initial-contents)
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(guix-concat-strings
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(,multiple-reader prompt initial-contents)
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,multiple-separator))))))))
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;;; Memoizing
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@ -436,7 +515,9 @@ See `defun' for the meaning of arguments."
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(defvar guix-utils-font-lock-keywords
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(eval-when-compile
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`((,(rx "(" (group (or "guix-keyword-args-let"
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`((,(rx "(" (group (or "guix-define-reader"
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"guix-define-readers"
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"guix-keyword-args-let"
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"guix-with-indent"))
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symbol-end)
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. 1)
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