129 lines
4 KiB
EmacsLisp
129 lines
4 KiB
EmacsLisp
(require 's)
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;; A few handy functions I use in init.el (or not, but they're nice to
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;; have)
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(defun custom-download-theme (url filename)
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"Downloads a theme through HTTP and places it in ~/.emacs.d/themes"
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;; Ensure the directory exists
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(unless (file-exists-p "~/.emacs.d/themes")
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(make-directory "~/.emacs.d/themes"))
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;; Adds the themes folder to the theme load path (if not already
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;; there)
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(unless (member "~/.emacs.d/themes" custom-theme-load-path)
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(add-to-list 'custom-theme-load-path "~/.emacs.d/themes"))
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;; Download file if it doesn't exist.
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(let ((file
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(concat "~/.emacs.d/themes/" filename)))
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(unless (file-exists-p file)
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(url-copy-file url file))))
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(defun custom-download-script (url filename)
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"Downloads an Elisp script, places it in ~/.emacs/other and then loads it"
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;; Ensure the directory exists
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(unless (file-exists-p "~/.emacs.d/other")
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(make-directory "~/.emacs.d/other"))
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;; Download file if it doesn't exist.
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(let ((file
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(concat "~/.emacs.d/other/" filename)))
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(unless (file-exists-p file)
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(url-copy-file url file))
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(load file)))
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(defun keychain-password (account &optional keychain)
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"Returns the password for the account, by default it's looked up in the Login.keychain but a
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different keychain can be specified."
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(let ((k (if keychain keychain "Login.keychain")))
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(replace-regexp-in-string
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"\n" ""
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(shell-command-to-string (concat "security find-generic-password -w -a "
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account
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" "
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k)))))
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;; This clones a git repository to 'foldername in .emacs.d
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;; if there isn't already a folder with that name
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(defun custom-clone-git (url foldername)
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"Clones a git repository to .emacs.d/foldername"
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(let ((fullpath (concat "~/.emacs.d/" foldername)))
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(unless (file-exists-p fullpath)
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(async-shell-command (concat "git clone " url " " fullpath)))))
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(defun load-file-if-exists (filename)
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(if (file-exists-p filename)
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(load filename)))
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;; These come from magnars, he's got some awesome things.
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(defun goto-line-with-feedback ()
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"Show line numbers temporarily, while prompting for the line number input"
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(interactive)
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(unwind-protect
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(progn
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(linum-mode 1)
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(call-interactively 'goto-line))
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(linum-mode -1)))
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(defun untabify-buffer ()
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(interactive)
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(untabify (point-min) (point-max)))
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(defun indent-buffer ()
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(interactive)
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(indent-region (point-min) (point-max)))
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(defun cleanup-buffer ()
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"Perform a bunch of operations on the whitespace content of a buffer.
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Including indent-buffer, which should not be called automatically on save."
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(interactive)
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(untabify-buffer)
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(delete-trailing-whitespace)
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(indent-buffer))
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;; These come from the emacs starter kit
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(defun esk-add-watchwords ()
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(font-lock-add-keywords
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nil '(("\\<\\(FIX\\(ME\\)?\\|TODO\\|DEBUG\\|HACK\\|REFACTOR\\|NOCOMMIT\\)"
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1 font-lock-warning-face t))))
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(defun esk-sudo-edit (&optional arg)
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(interactive "p")
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(if (or arg (not buffer-file-name))
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(find-file (concat "/sudo:root@localhost:" (read-file-name "File: ")))
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(find-alternate-file (concat "/sudo:root@localhost:" buffer-file-name))))
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;; Open Fefes blog
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(defun fefes-blog ()
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(interactive)
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(eww "https://blog.fefe.de/"))
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;; Open this machines NixOS config
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(defun nix-config ()
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(interactive)
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(find-file "/etc/nixos/configuration.nix"))
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;; Open local emacs configuration
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(defun emacs-config ()
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(interactive)
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(dired "~/.emacs.d/"))
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;; Get the nix store path for a given derivation.
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;; If the derivation has not been built before, this will trigger a build.
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(defun nix-store-path (derivation)
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(let ((expr (concat "with import <nixos> {}; " derivation)))
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(s-chomp (shell-command-to-string (concat "nix-build -E '" expr "'")))))
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(defun insert-nix-store-path ()
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(interactive)
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(let ((derivation (read-string "Derivation name (in <nixos>): ")))
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(insert (nix-store-path derivation))))
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(provide 'functions)
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