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|
;;; fs.el --- Make working with the filesystem easier -*- lexical-binding: t -*-
;; Author: William Carroll <wpcarro@gmail.com>
;; Version: 0.0.1
;; URL: https://git.wpcarro.dev/wpcarro/briefcase
;; Package-Requires: ((emacs "24.1"))
;;; Commentary:
;; Ergonomic alternatives for working with the filesystem.
;;; Code:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Dependencies
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(require 'dash)
(require 'f)
(require 's)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Library
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun fs-ensure-file (path)
"Ensure that a file and its directories in `PATH' exist.
Will error for inputs with a trailing slash."
(when (s-ends-with? "/" path)
(error (format "Input path has trailing slash: %s" path)))
(->> path
f-dirname
fs-ensure-dir)
(f-touch path))
(f-dirname "/tmp/a/b/file.txt")
(defun fs-ensure-dir (path)
"Ensure that a directory and its ancestor directories in `PATH' exist."
(->> path
f-split
(apply #'f-mkdir)))
(defun fs-ls (dir &optional full-path?)
"List the files in `DIR' one-level deep.
Should behave similarly in spirit to the Unix command, ls.
If `FULL-PATH?' is set, return the full-path of the files."
(-drop 2 (directory-files dir full-path?)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Tests
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(ert-deftest fs-test-ensure-file ()
(let ((file "/tmp/file/a/b/c/file.txt"))
;; Ensure this file doesn't exist first to prevent false-positives.
(f-delete file t)
(fs-ensure-file file)
(should (and (f-exists? file)
(f-file? file)))))
(ert-deftest fs-test-ensure-dir ()
(let ((dir "/tmp/dir/a/b/c"))
;; Ensure the directory doesn't exist.
(f-delete dir t)
(fs-ensure-dir dir)
(should (and (f-exists? dir)
(f-dir? dir)))))
(provide 'fs)
;;; fs.el ends here
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