* emacs/guix-pcomplete.el (guix-pcomplete-complete-command-arg): Add "challenge" to complete package names for it.
357 lines
13 KiB
EmacsLisp
357 lines
13 KiB
EmacsLisp
;;; guix-pcomplete.el --- Functions for completing guix commands -*- lexical-binding: t -*-
|
||
|
||
;; Copyright © 2015 Alex Kost <alezost@gmail.com>
|
||
|
||
;; This file is part of GNU Guix.
|
||
|
||
;; GNU Guix is free software; you can redistribute it and/or modify
|
||
;; it under the terms of the GNU General Public License as published by
|
||
;; the Free Software Foundation, either version 3 of the License, or
|
||
;; (at your option) any later version.
|
||
|
||
;; GNU Guix is distributed in the hope that it will be useful,
|
||
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
;; GNU General Public License for more details.
|
||
|
||
;; You should have received a copy of the GNU General Public License
|
||
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
;;; Commentary:
|
||
|
||
;; This file provides completions for "guix" command that may be used in
|
||
;; `shell', `eshell' and wherever `pcomplete' works.
|
||
|
||
;;; Code:
|
||
|
||
(require 'pcomplete)
|
||
(require 'pcmpl-unix)
|
||
(require 'cl-lib)
|
||
(require 'guix-utils)
|
||
(require 'guix-help-vars)
|
||
|
||
|
||
;;; Interacting with guix
|
||
|
||
(defcustom guix-pcomplete-guix-program (executable-find "guix")
|
||
"Name of the 'guix' program.
|
||
It is used to find guix commands, options, packages, etc."
|
||
:type 'file
|
||
:group 'pcomplete
|
||
:group 'guix)
|
||
|
||
(defun guix-pcomplete-run-guix (&rest args)
|
||
"Run `guix-pcomplete-guix-program' with ARGS.
|
||
Insert the output to the current buffer."
|
||
(apply #'call-process
|
||
guix-pcomplete-guix-program nil t nil args))
|
||
|
||
(defun guix-pcomplete-run-guix-and-search (regexp &optional group
|
||
&rest args)
|
||
"Run `guix-pcomplete-guix-program' with ARGS and search for matches.
|
||
Return a list of strings matching REGEXP.
|
||
GROUP specifies a parenthesized expression used in REGEXP."
|
||
(with-temp-buffer
|
||
(apply #'guix-pcomplete-run-guix args)
|
||
(let (result)
|
||
(guix-while-search regexp
|
||
(push (match-string-no-properties group) result))
|
||
(nreverse result))))
|
||
|
||
(defmacro guix-pcomplete-define-options-finder (name docstring regexp
|
||
&optional filter)
|
||
"Define function NAME to receive guix options and commands.
|
||
|
||
The defined function takes an optional COMMAND argument. This
|
||
function will run 'guix COMMAND --help' (or 'guix --help' if
|
||
COMMAND is nil) using `guix-pcomplete-run-guix-and-search' and
|
||
return its result.
|
||
|
||
If FILTER is specified, it should be a function. The result is
|
||
passed to this FILTER as argument and the result value of this
|
||
function call is returned."
|
||
(declare (doc-string 2) (indent 1))
|
||
`(guix-memoized-defun ,name (&optional command)
|
||
,docstring
|
||
(let* ((args '("--help"))
|
||
(args (if command (cons command args) args))
|
||
(res (apply #'guix-pcomplete-run-guix-and-search
|
||
,regexp guix-help-parse-regexp-group args)))
|
||
,(if filter
|
||
`(funcall ,filter res)
|
||
'res))))
|
||
|
||
(guix-pcomplete-define-options-finder guix-pcomplete-commands
|
||
"If COMMAND is nil, return a list of available guix commands.
|
||
If COMMAND is non-nil (it should be a string), return available
|
||
subcommands, actions, etc. for this guix COMMAND."
|
||
guix-help-parse-command-regexp)
|
||
|
||
(guix-pcomplete-define-options-finder guix-pcomplete-long-options
|
||
"Return a list of available long options for guix COMMAND."
|
||
guix-help-parse-long-option-regexp)
|
||
|
||
(guix-pcomplete-define-options-finder guix-pcomplete-short-options
|
||
"Return a string with available short options for guix COMMAND."
|
||
guix-help-parse-short-option-regexp
|
||
(lambda (list)
|
||
(guix-concat-strings list "")))
|
||
|
||
(guix-memoized-defun guix-pcomplete-all-packages ()
|
||
"Return a list of all available Guix packages."
|
||
(guix-pcomplete-run-guix-and-search
|
||
guix-help-parse-package-regexp
|
||
guix-help-parse-regexp-group
|
||
"package" "--list-available"))
|
||
|
||
(guix-memoized-defun guix-pcomplete-installed-packages (&optional profile)
|
||
"Return a list of Guix packages installed in PROFILE."
|
||
(let* ((args (and profile
|
||
(list (concat "--profile=" profile))))
|
||
(args (append '("package" "--list-installed") args)))
|
||
(apply #'guix-pcomplete-run-guix-and-search
|
||
guix-help-parse-package-regexp
|
||
guix-help-parse-regexp-group
|
||
args)))
|
||
|
||
(guix-memoized-defun guix-pcomplete-lint-checkers ()
|
||
"Return a list of all available lint checkers."
|
||
(guix-pcomplete-run-guix-and-search
|
||
guix-help-parse-list-regexp
|
||
guix-help-parse-regexp-group
|
||
"lint" "--list-checkers"))
|
||
|
||
(guix-memoized-defun guix-pcomplete-graph-types ()
|
||
"Return a list of all available graph types."
|
||
(guix-pcomplete-run-guix-and-search
|
||
guix-help-parse-list-regexp
|
||
guix-help-parse-regexp-group
|
||
"graph" "--list-types"))
|
||
|
||
|
||
;;; Completing
|
||
|
||
(defvar guix-pcomplete-option-regexp (rx string-start "-")
|
||
"Regexp to match an option.")
|
||
|
||
(defvar guix-pcomplete-long-option-regexp (rx string-start "--")
|
||
"Regexp to match a long option.")
|
||
|
||
(defvar guix-pcomplete-long-option-with-arg-regexp
|
||
(rx string-start
|
||
(group "--" (one-or-more any)) "="
|
||
(group (zero-or-more any)))
|
||
"Regexp to match a long option with its argument.
|
||
The first parenthesized group defines the option and the second
|
||
group - the argument.")
|
||
|
||
(defvar guix-pcomplete-short-option-with-arg-regexp
|
||
(rx string-start
|
||
(group "-" (not (any "-")))
|
||
(group (zero-or-more any)))
|
||
"Regexp to match a short option with its argument.
|
||
The first parenthesized group defines the option and the second
|
||
group - the argument.")
|
||
|
||
(defun guix-pcomplete-match-option ()
|
||
"Return non-nil, if the current argument is an option."
|
||
(pcomplete-match guix-pcomplete-option-regexp 0))
|
||
|
||
(defun guix-pcomplete-match-long-option ()
|
||
"Return non-nil, if the current argument is a long option."
|
||
(pcomplete-match guix-pcomplete-long-option-regexp 0))
|
||
|
||
(defun guix-pcomplete-match-long-option-with-arg ()
|
||
"Return non-nil, if the current argument is a long option with value."
|
||
(pcomplete-match guix-pcomplete-long-option-with-arg-regexp 0))
|
||
|
||
(defun guix-pcomplete-match-short-option-with-arg ()
|
||
"Return non-nil, if the current argument is a short option with value."
|
||
(pcomplete-match guix-pcomplete-short-option-with-arg-regexp 0))
|
||
|
||
(defun guix-pcomplete-long-option-arg (option args)
|
||
"Return a long OPTION's argument from a list of arguments ARGS."
|
||
(let* ((re (concat "\\`" option "=\\(.*\\)"))
|
||
(args (cl-member-if (lambda (arg)
|
||
(string-match re arg))
|
||
args))
|
||
(cur (car args)))
|
||
(when cur
|
||
(match-string-no-properties 1 cur))))
|
||
|
||
(defun guix-pcomplete-short-option-arg (option args)
|
||
"Return a short OPTION's argument from a list of arguments ARGS."
|
||
(let* ((re (concat "\\`" option "\\(.*\\)"))
|
||
(args (cl-member-if (lambda (arg)
|
||
(string-match re arg))
|
||
args))
|
||
(cur (car args)))
|
||
(when cur
|
||
(let ((arg (match-string-no-properties 1 cur)))
|
||
(if (string= "" arg)
|
||
(cadr args) ; take the next arg
|
||
arg)))))
|
||
|
||
(defun guix-pcomplete-complete-comma-args (entries)
|
||
"Complete comma separated arguments using ENTRIES."
|
||
(let ((index pcomplete-index))
|
||
(while (= index pcomplete-index)
|
||
(let* ((args (if (or (guix-pcomplete-match-long-option-with-arg)
|
||
(guix-pcomplete-match-short-option-with-arg))
|
||
(pcomplete-match-string 2 0)
|
||
(pcomplete-arg 0)))
|
||
(input (if (string-match ".*,\\(.*\\)" args)
|
||
(match-string-no-properties 1 args)
|
||
args)))
|
||
(pcomplete-here* entries input)))))
|
||
|
||
(defun guix-pcomplete-complete-command-arg (command)
|
||
"Complete argument for guix COMMAND."
|
||
(cond
|
||
((member command
|
||
'("archive" "build" "challenge" "edit" "environment"
|
||
"graph" "lint" "refresh" "size"))
|
||
(while t
|
||
(pcomplete-here (guix-pcomplete-all-packages))))
|
||
(t (pcomplete-here* (pcomplete-entries)))))
|
||
|
||
(defun guix-pcomplete-complete-option-arg (command option &optional input)
|
||
"Complete argument for COMMAND's OPTION.
|
||
INPUT is the current partially completed string."
|
||
(cl-flet ((option? (short long)
|
||
(or (string= option short)
|
||
(string= option long)))
|
||
(command? (&rest commands)
|
||
(member command commands))
|
||
(complete (entries)
|
||
(pcomplete-here entries input nil t))
|
||
(complete* (entries)
|
||
(pcomplete-here* entries input t)))
|
||
(cond
|
||
((option? "-L" "--load-path")
|
||
(complete* (pcomplete-dirs)))
|
||
((string= "--key-download" option)
|
||
(complete* guix-help-key-policies))
|
||
|
||
((command? "package")
|
||
(cond
|
||
;; For '--install[=]' and '--remove[=]', try to complete a package
|
||
;; name (INPUT) after the "=" sign, and then the rest packages
|
||
;; separated with spaces.
|
||
((option? "-i" "--install")
|
||
(complete (guix-pcomplete-all-packages))
|
||
(while (not (guix-pcomplete-match-option))
|
||
(pcomplete-here (guix-pcomplete-all-packages))))
|
||
((option? "-r" "--remove")
|
||
(let* ((profile (or (guix-pcomplete-short-option-arg
|
||
"-p" pcomplete-args)
|
||
(guix-pcomplete-long-option-arg
|
||
"--profile" pcomplete-args)))
|
||
(profile (and profile (expand-file-name profile))))
|
||
(complete (guix-pcomplete-installed-packages profile))
|
||
(while (not (guix-pcomplete-match-option))
|
||
(pcomplete-here (guix-pcomplete-installed-packages profile)))))
|
||
((string= "--show" option)
|
||
(complete (guix-pcomplete-all-packages)))
|
||
((option? "-p" "--profile")
|
||
(complete* (pcomplete-dirs)))
|
||
((option? "-m" "--manifest")
|
||
(complete* (pcomplete-entries)))))
|
||
|
||
((and (command? "archive" "build" "size")
|
||
(option? "-s" "--system"))
|
||
(complete* guix-help-system-types))
|
||
|
||
((and (command? "build")
|
||
(option? "-r" "--root"))
|
||
(complete* (pcomplete-entries)))
|
||
|
||
((and (command? "graph")
|
||
(option? "-t" "--type"))
|
||
(complete* (guix-pcomplete-graph-types)))
|
||
|
||
((and (command? "environment")
|
||
(option? "-l" "--load"))
|
||
(complete* (pcomplete-entries)))
|
||
|
||
((and (command? "hash" "download")
|
||
(option? "-f" "--format"))
|
||
(complete* guix-help-hash-formats))
|
||
|
||
((and (command? "lint")
|
||
(option? "-c" "--checkers"))
|
||
(guix-pcomplete-complete-comma-args
|
||
(guix-pcomplete-lint-checkers)))
|
||
|
||
((and (command? "publish")
|
||
(option? "-u" "--user"))
|
||
(complete* (pcmpl-unix-user-names)))
|
||
|
||
((and (command? "refresh")
|
||
(option? "-s" "--select"))
|
||
(complete* guix-help-refresh-subsets))
|
||
|
||
((and (command? "size")
|
||
(option? "-m" "--map-file"))
|
||
(complete* (pcomplete-entries))))))
|
||
|
||
(defun guix-pcomplete-complete-options (command)
|
||
"Complete options (with their arguments) for guix COMMAND."
|
||
(while (guix-pcomplete-match-option)
|
||
(let ((index pcomplete-index))
|
||
(if (guix-pcomplete-match-long-option)
|
||
|
||
;; Long options.
|
||
(if (guix-pcomplete-match-long-option-with-arg)
|
||
(let ((option (pcomplete-match-string 1 0))
|
||
(arg (pcomplete-match-string 2 0)))
|
||
(guix-pcomplete-complete-option-arg
|
||
command option arg))
|
||
|
||
(pcomplete-here* (guix-pcomplete-long-options command))
|
||
;; We support '--opt arg' style (along with '--opt=arg'),
|
||
;; because 'guix package --install/--remove' may be used this
|
||
;; way. So try to complete an argument after the option has
|
||
;; been completed.
|
||
(unless (guix-pcomplete-match-option)
|
||
(guix-pcomplete-complete-option-arg
|
||
command (pcomplete-arg 0 -1))))
|
||
|
||
;; Short options.
|
||
(let ((arg (pcomplete-arg 0)))
|
||
(if (> (length arg) 2)
|
||
;; Support specifying an argument after a short option without
|
||
;; spaces (for example, '-L/tmp/foo').
|
||
(guix-pcomplete-complete-option-arg
|
||
command
|
||
(substring-no-properties arg 0 2)
|
||
(substring-no-properties arg 2))
|
||
(pcomplete-opt (guix-pcomplete-short-options command))
|
||
(guix-pcomplete-complete-option-arg
|
||
command (pcomplete-arg 0 -1)))))
|
||
|
||
;; If there were no completions, move to the next argument and get
|
||
;; out if the last argument is achieved.
|
||
(when (= index pcomplete-index)
|
||
(if (= pcomplete-index pcomplete-last)
|
||
(throw 'pcompleted nil)
|
||
(pcomplete-next-arg))))))
|
||
|
||
;;;###autoload
|
||
(defun pcomplete/guix ()
|
||
"Completion for `guix'."
|
||
(let ((commands (guix-pcomplete-commands)))
|
||
(pcomplete-here* (cons "--help" commands))
|
||
(let ((command (pcomplete-arg 'first 1)))
|
||
(when (member command commands)
|
||
(guix-pcomplete-complete-options command)
|
||
(let ((subcommands (guix-pcomplete-commands command)))
|
||
(when subcommands
|
||
(pcomplete-here* subcommands)))
|
||
(guix-pcomplete-complete-options command)
|
||
(guix-pcomplete-complete-command-arg command)))))
|
||
|
||
(provide 'guix-pcomplete)
|
||
|
||
;;; guix-pcomplete.el ends here
|