doomemacs/core/core-lib.el
2017-02-20 00:26:07 -05:00

140 lines
5.6 KiB
EmacsLisp

;;; core-lib.el
(require 'dash)
(require 's)
(require 'f)
(eval-when-compile (require 'cl-lib))
(defvar __DIR__ nil "The directory of the currently loaded file (set by `@load')")
(defvar __FILE__ nil "The full path of the currently loaded file (set by `@load')")
(defun __DIR__ ()
"Get the full path to the current file's parent folder."
(or __DIR__
(and load-file-name (f-dirname load-file-name))
(and buffer-file-name (f-dirname buffer-file-name))
default-directory
(and (bound-and-true-p byte-compile-current-file)
(f-dirname byte-compile-current-file))
(error "__DIR__ is unset")))
(defun __FILE__ ()
"Get the full path to the current file."
(or __FILE__
load-file-name
buffer-file-name
(and (bound-and-true-p byte-compile-current-file)
byte-compile-current-file)
(error "__FILE__ is unset")))
;;
;; Library
;;
(defmacro (&rest body)
"A shortcut for inline interactive lambdas."
(declare (doc-string 1))
`(lambda () (interactive) ,@body))
(defmacro @after (feature &rest forms)
"A smart wrapper around `with-eval-after-load'. Supresses warnings during
compilation."
(declare (indent defun) (debug t))
`(,(if (or (not (boundp 'byte-compile-current-file))
(not byte-compile-current-file)
(if (symbolp feature)
(require feature nil :no-error)
(load feature :no-message :no-error)))
'progn
'with-no-warnings)
(with-eval-after-load ',feature ,@forms)))
(defmacro @quiet (&rest forms)
"Run FORMS without making any noise."
`(progn
(fset 'doom--old-write-region-fn (symbol-function 'write-region))
(cl-letf ((standard-output (lambda (&rest _)))
((symbol-function 'load-file) (lambda (file) (load file nil t)))
((symbol-function 'message) (lambda (&rest _)))
((symbol-function 'write-region)
(lambda (start end filename &optional append visit lockname mustbenew)
(unless visit (setq visit 'no-message))
(doom--old-write-region-fn start end filename append visit lockname mustbenew)))
(inhibit-message t)
(save-silently t))
,@forms)))
(defmacro @add-hook (hook &rest func-or-forms)
"A convenience macro for `add-hook'.
HOOK can be one hook or a list of hooks. If the hook(s) are not quoted, -hook is
appended to them automatically. If they are quoted, they are used verbatim.
FUNC-OR-FORMS can be a quoted symbol, a list of quoted symbols, or forms. Forms
will be wrapped in a lambda. A list of symbols will expand into a series of
add-hook calls.
Examples:
(@add-hook 'some-mode-hook 'enable-something)
(@add-hook some-mode '(enable-something and-another))
(@add-hook '(one-mode-hook second-mode-hook) 'enable-something)
(@add-hook (one-mode second-mode) 'enable-something)
(@add-hook (one-mode second-mode) (setq v 5) (setq a 2))"
(declare (indent defun) (debug t))
(unless func-or-forms
(error "@add-hook: FUNC-OR-FORMS is empty"))
(let* ((val (car func-or-forms))
(quoted-p (eq (car-safe hook) 'quote))
(hook (if quoted-p (cadr hook) hook))
(funcs (if (eq (car-safe val) 'quote)
(if (cdr-safe (cadr val))
(cadr val)
(list (cadr val)))
(list func-or-forms))))
(macroexp-progn
(mapcar (lambda (f)
(let ((func (if (symbolp f) `(quote ,f) `(lambda (&rest _) ,@func-or-forms))))
(macroexp-progn
(mapcar (lambda (h)
`(add-hook ',(if quoted-p h (intern (format "%s-hook" h))) ,func))
(-list hook)))))
funcs))))
(defmacro @associate (mode &rest plist)
"Associate a major or minor mode to certain patterns and project files."
(declare (indent 1))
(unless noninteractive
(let* ((minor (plist-get plist :minor))
(in (plist-get plist :in))
(match (plist-get plist :match))
(files (plist-get plist :files))
(pred (plist-get plist :when)))
(cond ((or files in pred)
(when (and files (not (or (listp files) (stringp files))))
(user-error "@associate :files expects a string or list of strings"))
(let ((hook-name (intern (format "doom--init-mode-%s" mode))))
(macroexp-progn
(list `(defun ,hook-name ()
(when (and ,(if match `(if buffer-file-name (string-match-p ,match buffer-file-name)) t)
(or ,(not files)
(and (boundp ',mode)
(not ,mode)
(doom-project-has-files ,@(-list files))))
(or (not ,pred)
(funcall ,pred buffer-file-name)))
(,mode 1)))
(if (and in (listp in))
(macroexp-progn
(mapcar (lambda (h) `(add-hook ',h ',hook-name))
(mapcar (lambda (m) (intern (format "%s-hook" m))) in)))
`(add-hook 'find-file-hook ',hook-name))))))
(match
`(add-to-list ',(if minor 'doom-auto-minor-mode-alist 'auto-mode-alist)
(cons ,match ',mode)))
(t (user-error "@associate invalid rules for mode [%s] (in %s) (match %s) (files %s)"
mode in match files))))))
(provide 'core-lib)
;;; core-lib.el ends here