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inf-clojure.el
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;;; inf-clojure.el --- Run an external Clojure process in an Emacs buffer -*- lexical-binding: t; -*-
;; Copyright © 2014-2022 Bozhidar Batsov
;; Authors: Bozhidar Batsov <[email protected]>
;; Olin Shivers <[email protected]>
;; URL: http://github.com/clojure-emacs/inf-clojure
;; Keywords: processes, clojure
;; Version: 3.2.0-snapshot
;; Package-Requires: ((emacs "25.1") (clojure-mode "5.11"))
;; This file is not part of GNU Emacs.
;; GNU Emacs 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 Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;; This package provides basic interaction with a Clojure subprocess (REPL).
;; It's based on ideas from the popular `inferior-lisp` package.
;;
;; `inf-clojure` has two components - a nice Clojure REPL with
;; auto-completion and a minor mode (`inf-clojure-minor-mode`), which
;; extends `clojure-mode` with commands to evaluate forms directly in the
;; REPL.
;;
;; `inf-clojure` provides a set of essential features for interactive
;; Clojure(Script) development:
;;
;; * REPL
;; * Interactive code evaluation
;; * Code completion
;; * Definition lookup
;; * Documentation lookup
;; * ElDoc
;; * Apropos
;; * Macroexpansion
;; * Support connecting to socket REPLs
;; * Support for Lumo
;; * Support for Planck
;; * Support for Joker
;;
;; For a more powerful/full-featured solution see https://github.com/clojure-emacs/cider.
;;
;; If you're installing manually, you'll need to:
;;
;; * drop the file somewhere on your load path (perhaps ~/.emacs.d)
;; * Add the following lines to your .emacs file:
;;
;; (autoload 'inf-clojure "inf-clojure" "Run an inferior Clojure process" t)
;; (add-hook 'clojure-mode-hook #'inf-clojure-minor-mode)
;;; Code:
(require 'comint)
(require 'clojure-mode)
(require 'eldoc)
(require 'thingatpt)
(require 'ansi-color)
(require 'cl-lib)
(require 'subr-x)
(defvar inf-clojure-startup-forms '((lein . "lein repl")
(boot . "boot repl")
(clojure . "clojure")
(cljs . "clojure -m cljs.main -r")
(planck . "planck -d")
(babashka . "bb")
(lumo . "lumo -d")
(joker . "joker")))
(defvar inf-clojure-repl-features
'((cljs . ((doc . "(cljs.repl/doc %s)")
(source . "(cljs.repl/source %s)")
(arglists . "(try (->> '%s cljs.core/resolve cljs.core/meta :arglists) (catch :default _ nil))")
(apropos . "(cljs.repl/apropos \"%s\")")
(ns-vars . "(cljs.repl/dir %s)")
(set-ns . "(in-ns '%s)")
(macroexpand . "(cljs.core/macroexpand '%s)")
(macroexpand-1 . "(cljs.core/macroexpand-1 '%s)")))
(lumo . ((load . "(clojure.core/load-file \"%s\")")
(doc . "(lumo.repl/doc %s)")
(source . "(lumo.repl/source %s)")
(arglists .
"(let [old-value lumo.repl/*pprint-results*]
(set! lumo.repl/*pprint-results* false)
(js/setTimeout #(set! lumo.repl/*pprint-results* old-value) 0)
(lumo.repl/get-arglists \"%s\"))")
(apropos . "(lumo.repl/apropos \"%s\")")
(ns-vars . "(lumo.repl/dir %s)")
(set-ns . "(in-ns '%s)")
(macroexpand . "(macroexpand-1 '%s)")
(macroexpand-1 . "(macroexpand-1 '%s)")
(completion .
"(let [ret (atom nil)]
(lumo.repl/get-completions \"%s\" (fn [res] (reset! ret (map str res))))
@ret)")))
(planck . ((load . "(load-file \"%s\")")
(doc . "(planck.repl/doc %s)")
(source . "(planck.repl/source %s)")
(arglists . "(planck.repl/get-arglists \"%s\")")
(apropos . "(doseq [var (sort (planck.repl/apropos \"%s\"))] (println (str var)))")
(ns-vars . "(planck.repl/dir %s)")
(set-ns . "(in-ns '%s)")
(macroexpand . "(macroexpand '%s)")
(macroexpand-1 . "(macroexpand-1 '%s)")
(completion . "(seq (js->clj (#'planck.repl/get-completions \"%s\")))")))
(joker . ((load . "(load-file \"%s\")")
(doc . "(joker.repl/doc %s)")
(arglists .
"(try
(:arglists
(joker.core/meta
(joker.core/resolve
(joker.core/read-string \"%s\"))))
(catch Error _ nil))")
(set-ns . "(in-ns '%s)")
(macroexpand . "(macroexpand '%s)")
(macroexpand-1 . "(macroexpand-1 '%s)")))
(babashka . ((load . "(clojure.core/load-file \"%s\")")
(doc . "(clojure.repl/doc %s)")
(source . "(clojure.repl/source %s)")
(arglists .
"(try (-> '%s clojure.core/resolve clojure.core/meta :arglists)
(catch Throwable e nil))")
(apropos . "(doseq [var (sort (clojure.repl/apropos \"%s\"))] (println (str var)))")
(ns-vars . "(clojure.repl/dir %s)")
(set-ns . "(clojure.core/in-ns '%s)")
(macroexpand . "(clojure.core/macroexpand '%s)")
(macroexpand-1 . "(clojure.core/macroexpand-1 '%s)")))
(clojure . ((load . "(clojure.core/load-file \"%s\")")
(doc . "(clojure.repl/doc %s)")
(source . "(clojure.repl/source %s)")
(arglists .
"(try
(:arglists
(clojure.core/meta
(clojure.core/resolve
(clojure.core/read-string \"%s\"))))
(catch #?(:clj Throwable :cljr Exception) e nil))")
(apropos . "(doseq [var (sort (clojure.repl/apropos \"%s\"))] (println (str var)))")
(ns-vars . "(clojure.repl/dir %s)")
(set-ns . "(clojure.core/in-ns '%s)")
(macroexpand . "(clojure.core/macroexpand '%s)")
(macroexpand-1 . "(clojure.core/macroexpand-1 '%s)")))))
(defvar-local inf-clojure-repl-type nil
"Symbol to define your REPL type.
Its root binding is nil and it can be further customized using
either `setq-local` or an entry in `.dir-locals.el`." )
(defvar inf-clojure-buffer nil
"The current `inf-clojure' process buffer.
MULTIPLE PROCESS SUPPORT
===========================================================================
To run multiple Clojure processes, you start the first up
with \\[inf-clojure]. It will be in a buffer named `*inf-clojure*'.
Rename this buffer with \\[rename-buffer]. You may now start up a new
process with another \\[inf-clojure]. It will be in a new buffer,
named `*inf-clojure*'. You can switch between the different process
buffers with \\[switch-to-buffer].
Commands that send text from source buffers to Clojure processes --
like `inf-clojure-eval-defun' or `inf-clojure-show-arglists' -- have to choose a
process to send to, when you have more than one Clojure process around. This
is determined by the global variable `inf-clojure-buffer'. Suppose you
have three inferior Clojures running:
Buffer Process
foo inf-clojure
bar inf-clojure<2>
*inf-clojure* inf-clojure<3>
If you do a \\[inf-clojure-eval-defun] command on some Clojure source code,
what process do you send it to?
- If you're in a process buffer (foo, bar, or *inf-clojure*),
you send it to that process.
- If you're in some other buffer (e.g., a source file), you
send it to the process attached to buffer `inf-clojure-buffer'.
This process selection is performed by function `inf-clojure-proc'.
Whenever \\[inf-clojure] fires up a new process, it resets
`inf-clojure-buffer' to be the new process's buffer. If you only run
one process, this does the right thing. If you run multiple
processes, you might need to change `inf-clojure-buffer' to
whichever process buffer you want to use.")
(defun inf-clojure--get-feature (repl-type feature no-error)
"Get FEATURE for REPL-TYPE from repl-features.
If no-error is truthy don't error if feature is not present."
(let ((feature-form (alist-get feature (alist-get repl-type inf-clojure-repl-features))))
(cond (feature-form feature-form)
(no-error nil)
(t (error "%s not configured for %s" feature repl-type)))))
(defun inf-clojure-get-feature (proc feature &optional no-error)
"Get FEATURE based on repl type for PROC."
(let* ((repl-type (or (with-current-buffer (process-buffer proc)
inf-clojure-repl-type)
(error "REPL type is not known"))))
(inf-clojure--get-feature repl-type feature no-error)))
(defun inf-clojure--update-feature (repl-type feature form)
"Return a copy of the datastructure containing the repl features.
Given a REPL-TYPE ('clojure, 'lumo, ...) and a FEATURE ('doc,
'apropos, ...) and a FORM this will return a new datastructure
that can be set as `inf-clojure-repl-features'."
(let ((original (alist-get repl-type inf-clojure-repl-features)))
(if original
(cons (cons repl-type (cons (cons feature form) (assoc-delete-all feature original)))
(assoc-delete-all repl-type inf-clojure-repl-features))
(error "Attempted to update %s form of unknown REPL type %s"
(symbol-name feature)
(symbol-name repl-type)))))
(defun inf-clojure-update-feature (repl-type feature form)
"Mutate the repl features to the new FORM.
Given a REPL-TYPE ('clojure, 'lumo, ...) and a FEATURE ('doc,
'apropos, ...) and a FORM this will set
`inf-clojure-repl-features' with these new values."
(setq inf-clojure-repl-features (inf-clojure--update-feature repl-type feature form)))
(defun inf-clojure-proc (&optional no-error)
"Return the current inferior Clojure process.
When NO-ERROR is non-nil, don't throw an error when no process
has been found. See also variable `inf-clojure-buffer'."
(or (get-buffer-process (if (derived-mode-p 'inf-clojure-mode)
(current-buffer)
inf-clojure-buffer))
(unless no-error
(error "No Clojure subprocess; see variable `inf-clojure-buffer'"))))
(defun inf-clojure-repl-p (&optional buf)
"Indicates if BUF is an inf-clojure REPL.
If BUF is nil then defaults to the current buffer.
Checks the mode and that there is a live process."
(let ((buf (or buf (current-buffer))))
(and (with-current-buffer buf (derived-mode-p 'inf-clojure-mode))
(get-buffer-process buf)
(process-live-p (get-buffer-process buf)))))
(defun inf-clojure-repls ()
"Return a list of all inf-clojure REPL buffers."
(let (repl-buffers)
(dolist (b (buffer-list))
(when (inf-clojure-repl-p b)
(push (buffer-name b) repl-buffers)))
repl-buffers))
(defun inf-clojure-set-repl (always-ask)
"Set an inf-clojure buffer as the active (default) REPL.
If in a REPL buffer already, use that unless a prefix is used (or
ALWAYS-ASK). Otherwise get a list of all active inf-clojure
REPLS and offer a choice. It's recommended to rename REPL
buffers after they are created with `rename-buffer'."
(interactive "P")
(if (and (not always-ask)
(inf-clojure-repl-p))
(setq inf-clojure-buffer (current-buffer))
(let ((repl-buffers (inf-clojure-repls)))
(if (> (length repl-buffers) 0)
(when-let ((repl-buffer (completing-read "Select default REPL: " repl-buffers nil t)))
(setq inf-clojure-buffer (get-buffer repl-buffer)))
(user-error "No buffers have an inf-clojure process")))))
(defvar inf-clojure--repl-type-lock nil
"Global lock for protecting against proc filter race conditions.
See http://blog.jorgenschaefer.de/2014/05/race-conditions-in-emacs-process-filter.html")
(defun inf-clojure--prompt-repl-type ()
"Set the REPL type to one of the available implementations."
(interactive)
(let ((types (mapcar #'car inf-clojure-repl-features)))
(intern
(completing-read "Set REPL type: "
(sort (mapcar #'symbol-name types) #'string-lessp)))))
(defgroup inf-clojure nil
"Run an external Clojure process (REPL) in an Emacs buffer."
:prefix "inf-clojure-"
:group 'clojure
:link '(url-link :tag "GitHub" "https://github.com/clojure-emacs/inf-clojure")
:link '(emacs-commentary-link :tag "Commentary" "inf-clojure"))
(defconst inf-clojure-version
(eval-when-compile
(lm-version (or load-file-name buffer-file-name)))
"The current version of `inf-clojure'.")
(defcustom inf-clojure-prompt-read-only t
"If non-nil, the prompt will be read-only.
Also see the description of `ielm-prompt-read-only'."
:type 'boolean)
(defcustom inf-clojure-filter-regexp
"\\`\\s *\\(:\\(\\w\\|\\s_\\)\\)?\\s *\\'"
"What not to save on inferior Clojure's input history.
Input matching this regexp is not saved on the input history in Inferior Clojure
mode. Default is whitespace followed by 0 or 1 single-letter colon-keyword
\(as in :a, :c, etc.)"
:type 'regexp)
(defun inf-clojure--modeline-info ()
"Return modeline info for `inf-clojure-minor-mode'.
Either \"no process\" or \"buffer-name(repl-type)\""
(if (and (bufferp inf-clojure-buffer)
(buffer-live-p inf-clojure-buffer))
(with-current-buffer inf-clojure-buffer
(format "%s(%s)" (buffer-name (current-buffer)) inf-clojure-repl-type))
"no process"))
(defvar inf-clojure-mode-map
(let ((map (copy-keymap comint-mode-map)))
(define-key map (kbd "C-x C-e") #'inf-clojure-eval-last-sexp)
(define-key map (kbd "C-c C-l") #'inf-clojure-load-file)
(define-key map (kbd "C-c C-a") #'inf-clojure-show-arglists)
(define-key map (kbd "C-c C-v") #'inf-clojure-show-var-documentation)
(define-key map (kbd "C-c C-s") #'inf-clojure-show-var-source)
(define-key map (kbd "C-c C-S-a") #'inf-clojure-apropos)
(define-key map (kbd "C-c M-o") #'inf-clojure-clear-repl-buffer)
(define-key map (kbd "C-c C-q") #'inf-clojure-quit)
(define-key map (kbd "C-c C-z") #'inf-clojure-switch-to-recent-buffer)
(easy-menu-define inf-clojure-mode-menu map
"Inferior Clojure REPL Menu"
'("Inf-Clojure REPL"
["Eval last sexp" inf-clojure-eval-last-sexp t]
"--"
["Load file" inf-clojure-load-file t]
"--"
["Show arglists" inf-clojure-show-arglists t]
["Show documentation for var" inf-clojure-show-var-documentation t]
["Show source for var" inf-clojure-show-var-source t]
["Apropos" inf-clojure-apropos t]
"--"
["Clear REPL" inf-clojure-clear-repl-buffer]
["Restart" inf-clojure-restart]
["Quit" inf-clojure-quit]
"--"
["Version" inf-clojure-display-version]))
map))
(defvar inf-clojure-insert-commands-map
(let ((map (define-prefix-command 'inf-clojure-insert-commands-map)))
(define-key map (kbd "d") #'inf-clojure-insert-defun)
(define-key map (kbd "C-d") #'inf-clojure-insert-defun)
(define-key map (kbd "e") #'inf-clojure-insert-last-sexp)
(define-key map (kbd "C-e") #'inf-clojure-insert-last-sexp)
map))
(defvar inf-clojure-minor-mode-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "C-M-x") #'inf-clojure-eval-defun) ; Gnu convention
(define-key map (kbd "C-x C-e") #'inf-clojure-eval-last-sexp) ; Gnu convention
(define-key map (kbd "C-c C-e") #'inf-clojure-eval-last-sexp)
(define-key map (kbd "C-c C-c") #'inf-clojure-eval-defun) ; SLIME/CIDER style
(define-key map (kbd "C-c C-b") #'inf-clojure-eval-buffer)
(define-key map (kbd "C-c C-r") #'inf-clojure-eval-region)
(define-key map (kbd "C-c M-r") #'inf-clojure-reload)
(define-key map (kbd "C-c C-n") #'inf-clojure-eval-form-and-next)
(define-key map (kbd "C-c C-j") 'inf-clojure-insert-commands-map)
(define-key map (kbd "C-c C-z") #'inf-clojure-switch-to-repl)
(define-key map (kbd "C-c C-i") #'inf-clojure-show-ns-vars)
(define-key map (kbd "C-c C-S-a") #'inf-clojure-apropos)
(define-key map (kbd "C-c C-m") #'inf-clojure-macroexpand)
(define-key map (kbd "C-c C-l") #'inf-clojure-load-file)
(define-key map (kbd "C-c C-a") #'inf-clojure-show-arglists)
(define-key map (kbd "C-c C-v") #'inf-clojure-show-var-documentation)
(define-key map (kbd "C-c C-s") #'inf-clojure-show-var-source)
(define-key map (kbd "C-c M-n") #'inf-clojure-set-ns)
(define-key map (kbd "C-c C-q") #'inf-clojure-quit)
(define-key map (kbd "C-c M-c") #'inf-clojure-connect)
(easy-menu-define inf-clojure-minor-mode-menu map
"Inferior Clojure Minor Mode Menu"
'("Inf-Clojure"
["Eval top-level sexp at point" inf-clojure-eval-defun t]
["Eval last sexp" inf-clojure-eval-last-sexp t]
["Eval region" inf-clojure-eval-region t]
["Eval buffer" inf-clojure-eval-buffer t]
"--"
["Load file..." inf-clojure-load-file t]
["Reload file... " inf-clojure-reload t]
"--"
["Switch to REPL" inf-clojure-switch-to-repl t]
["Set REPL ns" inf-clojure-set-ns t]
"--"
["Show arglists" inf-clojure-show-arglists t]
["Show documentation for var" inf-clojure-show-var-documentation t]
["Show source for var" inf-clojure-show-var-source t]
["Show vars in ns" inf-clojure-show-ns-vars t]
["Apropos" inf-clojure-apropos t]
["Macroexpand" inf-clojure-macroexpand t]
"--"
["Restart REPL" inf-clojure-restart]
["Quit REPL" inf-clojure-quit]))
map))
;;;###autoload
(defcustom inf-clojure-mode-line
'(:eval (format " inf-clojure[%s]" (inf-clojure--modeline-info)))
"Mode line lighter for cider mode.
The value of this variable is a mode line template as in
`mode-line-format'. See Info Node `(elisp)Mode Line Format' for details
about mode line templates.
Customize this variable to change how inf-clojure-minor-mode
displays its status in the mode line. The default value displays
the current REPL. Set this variable to nil to disable the
mode line entirely."
:type 'sexp
:risky t)
(defcustom inf-clojure-enable-eldoc t
"Var that allows disabling `eldoc-mode' in `inf-clojure'.
Set to nil to disable eldoc. Eldoc can be quite useful by
displaying function signatures in the modeline, but can also
cause multiple prompts to appear in the REPL and mess with *1,
*2, etc."
:type 'boolean
:safe 'booleanp
:package-version '(inf-clojure . "3.2.0"))
;;;###autoload
(define-minor-mode inf-clojure-minor-mode
"Minor mode for interacting with the inferior Clojure process buffer.
The following commands are available:
\\{inf-clojure-minor-mode-map}"
:lighter inf-clojure-mode-line
:keymap inf-clojure-minor-mode-map
(setq-local comint-input-sender 'inf-clojure--send-string)
(when inf-clojure-enable-eldoc
(inf-clojure-eldoc-setup))
(make-local-variable 'completion-at-point-functions)
(add-to-list 'completion-at-point-functions
#'inf-clojure-completion-at-point))
(defun inf-clojure--endpoint-p (x)
"Return non-nil if and only if X is a valid endpoint.
A valid endpoint consists of a host and port
number (e.g. (\"localhost\" . 5555))."
(and
(listp x)
(stringp (car x))
(numberp (cdr x))))
(defcustom inf-clojure-custom-startup
nil
"Form to be used to start `inf-clojure'.
Can be a cons pair of (host . port) where host is a string and
port is an integer, or a string to startup an interpreter like
\"planck\"."
:type '(choice (cons string integer) (const nil)))
(defcustom inf-clojure-custom-repl-type
nil
"REPL type to use for `inf-clojure' process buffer.
Should be a symbol that is a key in `inf-clojure-repl-features'."
:package-version '(inf-clojure . "3.0.0")
:type '(choice (const :tag "clojure" clojure)
(const :tag "cljs" cljs)
(const :tag "lumo" lumo)
(const :tag "planck" planck)
(const :tag "joker" joker)
(const :tag "babashka" babashka)
(const :tag "determine at startup" nil)))
(defun inf-clojure--whole-comment-line-p (string)
"Return non-nil iff STRING is a whole line semicolon comment."
(string-match-p "^\s*;" string))
(defun inf-clojure--sanitize-command (command)
"Sanitize COMMAND for sending it to a process.
An example of things that this function does is to add a final
newline at the end of the form. Return an empty string if the
sanitized command is empty."
(let ((sanitized (string-trim-right command)))
(if (string-blank-p sanitized)
""
(concat sanitized "\n"))))
(defun inf-clojure--send-string (proc string)
"A custom `comint-input-sender` / `comint-send-string`.
It performs the required side effects on every send for PROC and
STRING (for example set the buffer local REPL type). It should
always be preferred over `comint-send-string`. It delegates to
`comint-simple-send` so it always appends a newline at the end of
the string for evaluation. Refer to `comint-simple-send` for
customizations."
(let ((sanitized (inf-clojure--sanitize-command string)))
(inf-clojure--log-string sanitized "----CMD->")
(comint-send-string proc sanitized)))
(defcustom inf-clojure-reload-form "(require '%s :reload)"
"Format-string for building a Clojure expression to reload a file.
Reload forces loading of all the identified libs even if they are
already loaded.
This format string should use `%s' to substitute a namespace and
should result in a Clojure form that will be sent to the inferior
Clojure to load that file."
:type 'string
:safe #'stringp
:package-version '(inf-clojure . "2.2.0"))
;; :reload forces loading of all the identified libs even if they are
;; already loaded
;; :reload-all implies :reload and also forces loading of all libs that the
;; identified libs directly or indirectly load via require or use
(defun inf-clojure-reload-form (_proc)
"Return the form to query the Inf-Clojure PROC for reloading a namespace.
If you are using REPL types, it will pickup the most appropriate
`inf-clojure-reload-form` variant."
inf-clojure-reload-form)
(defcustom inf-clojure-reload-all-form "(require '%s :reload-all)"
"Format-string for building a Clojure expression to :reload-all a file.
Reload-all implies :reload and also forces loading of all libs
that the identified libs directly or indirectly load via require
or use.
This format string should use `%s' to substitute a namespace and
should result in a Clojure form that will be sent to the inferior
Clojure to load that file."
:type 'string
:safe #'stringp
:package-version '(inf-clojure . "2.2.0"))
(defun inf-clojure-reload-all-form (_proc)
"Return the form to query the Inf-Clojure PROC for :reload-all of a namespace.
If you are using REPL types, it will pickup the most appropriate
`inf-clojure-reload-all-form` variant."
inf-clojure-reload-all-form)
(defcustom inf-clojure-prompt "^[^=> \n]+=> *"
"Regexp to recognize prompts in the Inferior Clojure mode."
:type 'regexp)
(defcustom inf-clojure-subprompt " *#_=> *"
"Regexp to recognize subprompts in the Inferior Clojure mode."
:type 'regexp)
(defcustom inf-clojure-comint-prompt-regexp "^\\( *#_\\|[^=> \n]+\\)=> *"
"Regexp to recognize both main prompt and subprompt for comint.
This should usually be a combination of `inf-clojure-prompt' and
`inf-clojure-subprompt'."
:type 'regexp)
(defcustom inf-clojure-repl-use-same-window nil
"Controls whether to display the REPL buffer in the current window or not."
:type '(choice (const :tag "same" t)
(const :tag "different" nil))
:safe #'booleanp
:package-version '(inf-clojure . "2.0.0"))
(defcustom inf-clojure-auto-mode t
"When non-nil, automatically enable inf-clojure-minor-mode for all Clojure buffers."
:type 'boolean
:safe #'booleanp
:package-version '(inf-clojure . "3.1.0"))
(defun inf-clojure--clojure-buffers ()
"Return a list of all existing `clojure-mode' buffers."
(cl-remove-if-not
(lambda (buffer) (with-current-buffer buffer (derived-mode-p 'clojure-mode)))
(buffer-list)))
(defun inf-clojure-enable-on-existing-clojure-buffers ()
"Enable inf-clojure's minor mode on existing Clojure buffers.
See command `inf-clojure-minor-mode'."
(interactive)
(add-hook 'clojure-mode-hook #'inf-clojure-minor-mode)
(dolist (buffer (inf-clojure--clojure-buffers))
(with-current-buffer buffer
(inf-clojure-minor-mode +1))))
(defun inf-clojure-disable-on-existing-clojure-buffers ()
"Disable command `inf-clojure-minor-mode' on existing Clojure buffers."
(interactive)
(dolist (buffer (inf-clojure--clojure-buffers))
(with-current-buffer buffer
(inf-clojure-minor-mode -1))))
(define-derived-mode inf-clojure-mode comint-mode "Inferior Clojure"
"Major mode for interacting with an inferior Clojure process.
Runs a Clojure interpreter as a subprocess of Emacs, with Clojure
I/O through an Emacs buffer. Variables of the type
`inf-clojure-*-cmd' combined with the project type controls how
a Clojure REPL is started. Variables `inf-clojure-prompt',
`inf-clojure-filter-regexp' and `inf-clojure-load-form' can
customize this mode for different Clojure REPLs.
For information on running multiple processes in multiple buffers, see
documentation for variable `inf-clojure-buffer'.
\\{inf-clojure-mode-map}
Customization: Entry to this mode runs the hooks on `comint-mode-hook' and
`inf-clojure-mode-hook' (in that order).
You can send text to the inferior Clojure process from other buffers containing
Clojure source.
`inf-clojure-switch-to-repl' switches the current buffer to the Clojure process buffer.
`inf-clojure-eval-defun' sends the current defun to the Clojure process.
`inf-clojure-eval-region' sends the current region to the Clojure process.
Prefixing the inf-clojure-eval/defun/region commands with
a \\[universal-argument] causes a switch to the Clojure process buffer after sending
the text.
Commands:\\<inf-clojure-mode-map>
\\[comint-send-input] after the end of the process' output sends the text from the
end of process to point.
\\[comint-send-input] before the end of the process' output copies the sexp ending at point
to the end of the process' output, and sends it.
\\[comint-copy-old-input] copies the sexp ending at point to the end of the process' output,
allowing you to edit it before sending it.
If `comint-use-prompt-regexp' is nil (the default), \\[comint-insert-input] on old input
copies the entire old input to the end of the process' output, allowing
you to edit it before sending it. When not used on old input, or if
`comint-use-prompt-regexp' is non-nil, \\[comint-insert-input] behaves according to
its global binding.
\\[backward-delete-char-untabify] converts tabs to spaces as it moves back.
\\[clojure-indent-line] indents for Clojure; with argument, shifts rest
of expression rigidly with the current line.
\\[indent-sexp] does \\[clojure-indent-line] on each line starting within following expression.
Paragraphs are separated only by blank lines. Semicolons start comments.
If you accidentally suspend your process, use \\[comint-continue-subjob]
to continue it."
(setq comint-input-sender 'inf-clojure--send-string)
(setq comint-prompt-regexp inf-clojure-comint-prompt-regexp)
(setq mode-line-process '(":%s"))
(clojure-mode-variables)
(clojure-font-lock-setup)
(when inf-clojure-enable-eldoc
(inf-clojure-eldoc-setup))
(setq comint-get-old-input #'inf-clojure-get-old-input)
(setq comint-input-filter #'inf-clojure-input-filter)
(setq-local comint-prompt-read-only inf-clojure-prompt-read-only)
(add-hook 'comint-preoutput-filter-functions #'inf-clojure-preoutput-filter nil t)
(add-hook 'completion-at-point-functions #'inf-clojure-completion-at-point nil t)
(ansi-color-for-comint-mode-on)
(when inf-clojure-auto-mode
(inf-clojure-enable-on-existing-clojure-buffers)))
(defun inf-clojure-get-old-input ()
"Return a string containing the sexp ending at point."
(save-excursion
(let ((end (point)))
(backward-sexp)
(buffer-substring (max (point) (comint-line-beginning-position)) end))))
(defun inf-clojure-input-filter (str)
"Return t if STR does not match `inf-clojure-filter-regexp'."
(not (string-match inf-clojure-filter-regexp str)))
(defun inf-clojure-chomp (string)
"Remove final newline from STRING."
(if (string-match "[\n]\\'" string)
(replace-match "" t t string)
string))
(defun inf-clojure-remove-subprompts (string)
"Remove subprompts from STRING."
(replace-regexp-in-string inf-clojure-subprompt "" string))
(defun inf-clojure-preoutput-filter (str)
"Preprocess the output STR from interactive commands."
(inf-clojure--log-string str "<-RES----")
(cond
((string-prefix-p "inf-clojure-" (symbol-name (or this-command last-command)))
;; Remove subprompts and prepend a newline to the output string
(inf-clojure-chomp (concat "\n" (inf-clojure-remove-subprompts str))))
(t str)))
(defun inf-clojure-clear-repl-buffer ()
"Clear the REPL buffer."
(interactive)
(with-current-buffer (if (derived-mode-p 'inf-clojure-mode)
(current-buffer)
inf-clojure-buffer)
(let ((comint-buffer-maximum-size 0))
(comint-truncate-buffer))))
(defun inf-clojure--swap-to-buffer-window (to-buffer)
"Switch to `TO-BUFFER''s window."
(let ((pop-up-frames
;; Be willing to use another frame
;; that already has the window in it.
(or pop-up-frames
(get-buffer-window to-buffer t))))
(pop-to-buffer to-buffer '(display-buffer-reuse-window . ()))))
(defun inf-clojure-switch-to-repl (eob-p)
"Switch to the inferior Clojure process buffer.
With prefix argument EOB-P, positions cursor at end of buffer."
(interactive "P")
(if (get-buffer-process inf-clojure-buffer)
(inf-clojure--swap-to-buffer-window inf-clojure-buffer)
(call-interactively #'inf-clojure))
(when eob-p
(push-mark)
(goto-char (point-max))))
(defun inf-clojure-switch-to-recent-buffer ()
"Switch to the most recently used `inf-clojure-minor-mode' buffer."
(interactive)
(let ((recent-inf-clojure-minor-mode-buffer (seq-find (lambda (buf)
(with-current-buffer buf (bound-and-true-p inf-clojure-minor-mode)))
(buffer-list))))
(if recent-inf-clojure-minor-mode-buffer
(inf-clojure--swap-to-buffer-window recent-inf-clojure-minor-mode-buffer)
(message "inf-clojure: No recent buffer known."))))
(defun inf-clojure-quit (&optional buffer)
"Kill the REPL buffer and its underlying process.
You can pass the target BUFFER as an optional parameter
to suppress the usage of the target buffer discovery logic."
(interactive)
(let ((target-buffer (or buffer (inf-clojure-select-target-repl))))
(when (get-buffer-process target-buffer)
(delete-process target-buffer))
(kill-buffer target-buffer)))
(defun inf-clojure-restart (&optional buffer)
"Restart the REPL buffer and its underlying process.
You can pass the target BUFFER as an optional parameter
to suppress the usage of the target buffer discovery logic."
(interactive)
(let* ((target-buffer (or buffer (inf-clojure-select-target-repl)))
(target-buffer-name (buffer-name target-buffer)))
;; TODO: Try to recycle the old buffer instead of killing and recreating it
(inf-clojure-quit target-buffer)
(call-interactively #'inf-clojure)
(rename-buffer target-buffer-name)))
(defun inf-clojure--project-name (dir)
"Extract a project name from a project DIR.
The name is simply the final segment of the path."
(file-name-nondirectory (directory-file-name dir)))
;;;###autoload
(defun inf-clojure (cmd)
"Run an inferior Clojure process, input and output via buffer `*inf-clojure*'.
If there is a process already running in `*inf-clojure*', just
switch to that buffer.
CMD is a string which serves as the startup command or a cons of
host and port.
Prompts user for repl startup command and repl type if not
inferrable from startup command. Uses `inf-clojure-custom-repl-type'
and `inf-clojure-custom-startup' if those are set.
Use a prefix to prevent using these when they
are set.
Runs the hooks from `inf-clojure-mode-hook' (after the
`comint-mode-hook' is run). \(Type \\[describe-mode] in the
process buffer for a list of commands.)"
(interactive (list (or (unless current-prefix-arg
inf-clojure-custom-startup)
(completing-read "Select Clojure REPL startup command: "
(mapcar #'cdr inf-clojure-startup-forms)
nil
'confirm-after-completion))))
(let* ((project-dir (clojure-project-dir))
(process-buffer-name (if project-dir
(format "inf-clojure %s" (inf-clojure--project-name project-dir))
"inf-clojure"))
;; comint adds the asterisks to both sides
(repl-buffer-name (format "*%s*" process-buffer-name)))
;; Create a new comint buffer if needed
(unless (comint-check-proc repl-buffer-name)
;; run the new process in the project's root when in a project folder
(let ((default-directory (or project-dir default-directory))
(cmdlist (if (consp cmd)
(list cmd)
(split-string-and-unquote cmd)))
(repl-type (or (unless prefix-arg
inf-clojure-custom-repl-type)
(car (rassoc cmd inf-clojure-startup-forms))
(inf-clojure--prompt-repl-type))))
(message "Starting Clojure REPL via `%s'..." cmd)
(with-current-buffer (apply #'make-comint
process-buffer-name (car cmdlist) nil (cdr cmdlist))
(inf-clojure-mode)
(set-syntax-table clojure-mode-syntax-table)
(setq-local inf-clojure-repl-type repl-type)
(hack-dir-local-variables-non-file-buffer))))
;; update the default comint buffer and switch to it
(setq inf-clojure-buffer (get-buffer repl-buffer-name))
(if inf-clojure-repl-use-same-window
(pop-to-buffer-same-window repl-buffer-name)
(pop-to-buffer repl-buffer-name))))
;;;###autoload
(defun inf-clojure-connect (host port)
"Connect to a running socket REPL server via `inf-clojure'.
HOST is the host the process is running on, PORT is where it's listening."
(interactive "shost: \nnport: ")
(inf-clojure (cons host port)))
(defun inf-clojure--forms-without-newlines (str)
"Remove newlines between toplevel forms.
STR is a string of contents to be evaluated. When sending
multiple forms to a REPL, each newline triggers a prompt.
So we replace all newlines between top level forms but not inside
of forms."
(condition-case nil
(with-temp-buffer
(progn
(clojurec-mode)
(insert str)
(whitespace-cleanup)
(goto-char (point-min))
(while (not (eobp))
(while (looking-at "\n")
(delete-char 1))
(unless (eobp)
(clojure-forward-logical-sexp))
(unless (eobp)
(forward-char)))
(buffer-substring-no-properties (point-min) (point-max))))
(scan-error str)))
(defun inf-clojure-eval-region (start end &optional and-go)
"Send the current region to the inferior Clojure process.
Sends substring between START and END. Prefix argument AND-GO
means switch to the Clojure buffer afterwards."
(interactive "r\nP")
(let* ((str (buffer-substring-no-properties start end))
;; newlines over a socket repl between top level forms cause
;; a prompt to be returned. so here we dump the region into a
;; temp buffer, and delete all newlines between the forms
(formatted (inf-clojure--forms-without-newlines str)))
(inf-clojure--send-string (inf-clojure-proc) formatted))
(when and-go (inf-clojure-switch-to-repl t)))
(defun inf-clojure-eval-string (code)
"Send the string CODE to the inferior Clojure process to be executed."
(inf-clojure--send-string (inf-clojure-proc) code))
(defun inf-clojure--defun-at-point (&optional bounds)
"Return text or range of defun at point.
If BOUNDS is truthy return a dotted pair of beginning and end of
current defun else return the string.."
(save-excursion
(end-of-defun)
(let ((end (point))
(case-fold-search t)
(func (if bounds #'cons #'buffer-substring-no-properties)))
(beginning-of-defun)
(funcall func (point) end))))
(defun inf-clojure-eval-defun (&optional and-go)
"Send the current defun to the inferior Clojure process.
Prefix argument AND-GO means switch to the Clojure buffer afterwards."
(interactive "P")
(save-excursion
(let ((bounds (inf-clojure--defun-at-point t)))
(inf-clojure-eval-region (car bounds) (cdr bounds) and-go))))
(defun inf-clojure-eval-buffer (&optional and-go)
"Send the current buffer to the inferior Clojure process.
Prefix argument AND-GO means switch to the Clojure buffer afterwards."
(interactive "P")
(save-excursion
(widen)
(let ((case-fold-search t))
(inf-clojure-eval-region (point-min) (point-max) and-go))))
(defun inf-clojure-eval-last-sexp (&optional and-go)
"Send the previous sexp to the inferior Clojure process.
Prefix argument AND-GO means switch to the Clojure buffer afterwards."
(interactive "P")
(inf-clojure-eval-region (save-excursion (backward-sexp) (point)) (point) and-go))
(defun inf-clojure-eval-form-and-next ()
"Send the previous sexp to the inferior Clojure process and move to the next one."
(interactive "")
(while (not (zerop (car (syntax-ppss))))
(up-list))
(inf-clojure-eval-last-sexp)
(forward-sexp))
(defun inf-clojure-insert-and-eval (form)
"Insert FORM into process and evaluate.
Indent FORM. FORM is expected to have been trimmed."
(let ((clojure-process (inf-clojure-proc)))
(with-current-buffer (process-buffer clojure-process)
(comint-goto-process-mark)
(let ((beginning (point)))
(insert (format "%s" form))
(let ((end (point)))
(goto-char beginning)
(indent-sexp end)
;; font-lock the inserted code
(font-lock-ensure beginning end)))
(comint-send-input t t))))
(defun inf-clojure-insert-defun ()
"Send current defun to process."
(interactive)
(inf-clojure-insert-and-eval (string-trim (inf-clojure--defun-at-point))))
(defun inf-clojure-insert-last-sexp ()
"Send last sexp to process."
(interactive)
(inf-clojure-insert-and-eval
(buffer-substring-no-properties (save-excursion (backward-sexp) (point))
(point))))
;;; Now that inf-clojure-eval-/defun/region takes an optional prefix arg,
;;; these commands are redundant. But they are kept around for the user
;;; to bind if he wishes, for backwards functionality, and because it's
;;; easier to type C-c e than C-u C-c C-e.
(defun inf-clojure-eval-region-and-go (start end)
"Send the current region to the inferior Clojure, and switch to its buffer.
START and END are the beginning and end positions in the buffer to send."
(interactive "r")
(inf-clojure-eval-region start end t))
(defun inf-clojure-eval-defun-and-go ()
"Send the current defun to the inferior Clojure, and switch to its buffer."
(interactive)
(inf-clojure-eval-defun t))
(defvar inf-clojure-prev-l/c-dir/file nil
"Record last directory and file used in loading or compiling.
This holds a cons cell of the form `(DIRECTORY . FILE)'
describing the last `inf-clojure-load-file' command.")
(defcustom inf-clojure-source-modes '(clojure-mode)
"Used to determine if a buffer contains Clojure source code.
If it's loaded into a buffer that is in one of these major modes, it's
considered a Clojure source file by `inf-clojure-load-file'.
Used by this command to determine defaults."
:type '(repeat symbol))
(defun inf-clojure-load-file (&optional switch-to-repl file-name)
"Load a Clojure file into the inferior Clojure process.
The prefix argument SWITCH-TO-REPL controls whether to switch to
REPL after the file is loaded or not. If the argument FILE-NAME
is present it will be used instead of the current file."
(interactive "P")
(let* ((proc (inf-clojure-proc))
(file-name (or file-name
(car (comint-get-source "Load Clojure file: " inf-clojure-prev-l/c-dir/file
;; nil because doesn't need an exact name
inf-clojure-source-modes nil))))
(load-form (inf-clojure-get-feature proc 'load)))
(comint-check-source file-name) ; Check to see if buffer needs saved.
(setq inf-clojure-prev-l/c-dir/file (cons (file-name-directory file-name)
(file-name-nondirectory file-name)))
(inf-clojure--send-string proc (format load-form file-name))
(when switch-to-repl
(inf-clojure-switch-to-repl t))))
(defun inf-clojure-reload (arg)
"Send a query to the inferior Clojure for reloading the namespace.
See variable `inf-clojure-reload-form' and
`inf-clojure-reload-all-form'.
The prefix argument ARG can change the behavior of the command:
- C-u M-x `inf-clojure-reload': prompts for a namespace name.
- M-- M-x `inf-clojure-reload': executes (require ... :reload-all).
- M-- C-u M-x `inf-clojure-reload': reloads all AND prompts."
(interactive "P")
(let* ((proc (inf-clojure-proc))
(reload-all-p (or (equal arg '-) (equal arg '(-4))))
(prompt-p (or (equal arg '(4)) (equal arg '(-4))))
(ns (if prompt-p
(car (inf-clojure-symprompt "Namespace" (clojure-find-ns)))
(clojure-find-ns)))
(form (if (not reload-all-p)
(inf-clojure-reload-form proc)
(inf-clojure-reload-all-form proc))))
(inf-clojure--send-string proc (format form ns))))
(defun inf-clojure-connected-p ()
"Return t if inferior Clojure is currently connected, nil otherwise."
(not (null inf-clojure-buffer)))