feat: add password generation and basic transient menu
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"Password generator for Emacs")
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(website-url "https://labs.phundrak.com/phundrak/password-gen.el")
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(keywords "")
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(keywords "convenience")
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(package-file "password-gen.el")
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144
password-gen.el
144
password-gen.el
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;; Maintainer: Lucien Cartier-Tilet <lucien@phundrak.com>
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;; URL: https://labs.phundrak.com/phundrak/password-gen.el
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;; Version: 0.1.0
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;; Package-Requires: ((emacs "26.1"))
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;; Keywords:
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;; Package-Requires: ((emacs "26.1") (transient "0.3.7"))
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;; Keywords: convenience
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;; This file is not part of GNU Emacs.
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@ -26,12 +26,148 @@
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;;; Commentary:
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;;
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;; Password generator for Emacs
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;; Password generator for Emacs, based on transient.
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;;
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;;; Code:
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;; Happy coding! ;)
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;;; Requires
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(require 'transient)
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(defconst password-gen-version "0.1.0")
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(defgroup password-gen ()
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"Password generator for Emacs"
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:group 'applications
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:prefix "password-gen-"
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:link '(url-link :tag "Gitea" "https://labs.phundrak.com/phundrak/password-gen.el"))
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;;; Internal Functions
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(eval-when-compile
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(defmacro password-gen--define-infix (key name description type version
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default &rest reader)
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"Define infix and its corresponding variable at once.
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The variable is named password-gen--NAME and is of type TYPE, has
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a DESCRIPTION and a specified VERSION. They KEY and READER are
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for the infix declaration.
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This macro is largely copied from Tecosaur’s screenshot.el"
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(let ((var-name (concat "password-gen--" name)))
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`(progn
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(defcustom ,(intern var-name) ,default
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,description
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:type ,type
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:group 'password-gen
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:version ,version)
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(transient-define-infix ,(intern (concat "password-gen--set-" name)) ()
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"Set password-gen options."
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:class 'transient-lisp-variable
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:variable ',(intern var-name)
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:key ,key
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:description ,description
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:argument ,(concat "--" name)
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:reader (lambda (&rest _) ,@reader)))))
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(password-gen--define-infix
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"-n" "numbers" "Include 0-9 numbers"
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'boolean "0.1.0" t
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(not password-gen--numbers))
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(password-gen--define-infix
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"-C" "uppercase" "Include A-Z characters"
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'boolean "0.1.0" t
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(not password-gen--uppercase))
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(password-gen--define-infix
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"-c" "lowercase" "Include a-z characters"
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'boolean "0.1.0" t
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(not password-gen--lowercase))
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(password-gen--define-infix
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"-s" "symbols" "Include !@#$%^&* symbols"
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'boolean "0.1.0" t
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(not password-gen--symbols))
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(password-gen--define-infix
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"-l" "length" "Length of the password"
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'boolean "0.1.0" 16
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(read-number "Length of the password: ")))
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(defun password-gen--generate-password ()
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"Generate a password based on user preferences."
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(shell-command-to-string
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(format "tr -dc '%s%s%s%s' < /dev/urandom | head -c %d"
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(if password-gen--uppercase "A-Z" "")
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(if password-gen--lowercase "a-z" "")
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(if password-gen--numbers "0-9" "")
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(if password-gen--symbols "!@#$%^&*")
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password-gen--length)))
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(defun password-gen--copy-generated-password ()
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"Generate new password and add it to kill ring."
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(kill-new (password-gen--generate-password)))
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(defun password-gen--insert-generated-password ()
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"Insert at cursor a newly generated password."
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(insert (password-gen--generate-password)))
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;;; Transient Actions
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(eval-when-compile
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(defmacro password-gen--def-action (name description transient &rest body)
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"Create a function called from TRANSIENT.
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DESCRIPTION is the docstring of the function named
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password-gen--NAME, and it gets BODY as its body."
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`(defun ,(intern (concat "password-gen--action-" name)) (&optional _args)
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,(concat description "
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This function is meant to be called by a transient.")
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(interactive
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(list (transient-args ,transient)))
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,@body))
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(password-gen--def-action
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"quit"
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"Exit password generator"
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'password-gen-main
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#'nil)
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(password-gen--def-action
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"copy"
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"Generate and copy password in kill-ring."
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'password-gen-main
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(password-gen--copy-generated-password))
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(password-gen--def-action
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"insert"
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"Generate and insert password at cursor."
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'password-gen-main
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(password-gen--insert-generated-password)))
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;;; Transient Prefixes
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(transient-define-prefix password-gen-main ()
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["Options"
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(password-gen--set-length)
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(password-gen--set-uppercase)
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(password-gen--set-lowercase)
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(password-gen--set-numbers)
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(password-gen--set-symbols)]
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["Actions"
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("c" "Copy" password-gen--action-copy)
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("i" "Insert" password-gen--action-insert)
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("q" "Quit" password-gen--action-quit)]
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(interactive)
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(transient-setup 'password-gen))
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;;;###autoload
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(defun password-gen ()
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"Call the main transient for password-gen."
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(interactive)
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(call-interactively #'password-gen-main))
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(provide 'password-gen)
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;;; password-gen.el ends here
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