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;;; cider.el --- Clojure Integrated Development Environment and REPL -*- lexical-binding: t -*-
;; Copyright © 2012-2014 Tim King, Phil Hagelberg
;; Copyright © 2013-2014 Bozhidar Batsov, Hugo Duncan, Steve Purcell
;;
;; Author: Tim King <kingtim@gmail.com>
;; Phil Hagelberg <technomancy@gmail.com>
;; Bozhidar Batsov <bozhidar@batsov.com>
;; Hugo Duncan <hugo@hugoduncan.org>
;; Steve Purcell <steve@sanityinc.com>
;; URL: http://www.github.com/clojure-emacs/cider
;; Version: 0.7.0-cvs
;; Package-Requires: ((clojure-mode "2.0.0") (cl-lib "0.3") (dash "2.4.1") (pkg-info "0.4") (emacs "24"))
;; Keywords: languages, clojure, cider
;; This program 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.
;; This program 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/>.
;; This file is not part of GNU Emacs.
;;; Commentary:
;; Provides a Clojure IDE and REPL for Emacs, built on top of nREPL.
;;; Installation:
;; Available as a package in marmalade-repo.org and melpa.milkbox.net.
;; (add-to-list 'package-archives
;; '("marmalade" . "http://marmalade-repo.org/packages/"))
;;
;; or
;;
;; (add-to-list 'package-archives
;; '("melpa" . "http://melpa.milkbox.net/packages/") t)
;;
;; M-x package-install cider
;;; Usage:
;; M-x cider-jack-in
;;; Code:
(defgroup cider nil
"Clojure Integrated Development Environment and REPL."
:prefix "cider-"
:group 'applications
:link '(url-link :tag "Github" "https://github.com/clojure-emacs/cider")
:link '(emacs-commentary-link :tag "Commentary" "cider"))
(require 'cider-client)
(require 'cider-interaction)
(require 'cider-eldoc)
(require 'cider-repl)
(require 'cider-mode)
(require 'cider-util)
(defvar cider-version "0.7.0-snapshot"
"Fallback version used when it cannot be extracted automatically.
Normally it won't be used, unless `pkg-info' fails to extract the
version from the CIDER package or library.")
(defcustom cider-lein-command
"lein"
"The command used to execute Leiningen 2.x."
:type 'string
:group 'cider)
(defcustom cider-lein-parameters
"repl :headless"
"Params passed to lein to start an nREPL server via `cider-jack-in'."
:type 'string
:group 'cider)
(defcustom cider-known-endpoints nil
"Specify a list of custom endpoints where each endpoint is a list.
For example: '((\"label\" \"host\" \"port\")).
The label is optional so that '(\"host\" \"port\") will suffice.
This variable is used by `cider-connect'."
:type 'list
:group 'cider)
;; TODO: Implement a check for `cider-lein-command' over tramp
(defun cider--lein-present-p ()
"Check if `cider-lein-command' is on the `exec-path'.
In case `default-directory' is non-local we assume the command is available."
(or (file-remote-p default-directory)
(executable-find cider-lein-command)
(executable-find (concat cider-lein-command ".bat"))))
;;;###autoload
(defun cider-version ()
"Display CIDER's version."
(interactive)
(message "CIDER %s" (cider--version)))
;;;###autoload
(defun cider-jack-in (&optional prompt-project)
"Start a nREPL server for the current project and connect to it.
If PROMPT-PROJECT is t, then prompt for the project for which to
start the server."
(interactive "P")
(setq cider-current-clojure-buffer (current-buffer))
(if (cider--lein-present-p)
(let* ((project (when prompt-project
(read-directory-name "Project: ")))
(project-dir (nrepl-project-directory-for
(or project (nrepl-current-dir))))
(server-command (if prompt-project
(read-string (format "Server command: %s " cider-lein-command) cider-lein-parameters)
cider-lein-parameters)))
(when (nrepl-check-for-repl-buffer nil project-dir)
(let* ((nrepl-project-dir project-dir)
(cmd (format "%s %s" cider-lein-command cider-lein-parameters))
(default-directory (or project-dir default-directory))
(nrepl-buffer-name (generate-new-buffer-name
(nrepl-server-buffer-name)))
(process
(progn
;; the buffer has to be created before the proc:
(get-buffer-create nrepl-buffer-name)
(start-file-process-shell-command
"nrepl-server"
nrepl-buffer-name
cmd))))
(set-process-filter process 'nrepl-server-filter)
(set-process-sentinel process 'nrepl-server-sentinel)
(set-process-coding-system process 'utf-8-unix 'utf-8-unix)
(with-current-buffer (process-buffer process)
(setq nrepl-project-dir project-dir))
(message "Starting nREPL server via %s..."
(propertize cmd 'face 'font-lock-keyword-face)))))
(message "The %s executable (specified by `cider-lein-command') isn't on your exec-path" cider-lein-command)))
(defun cider-known-endpoint-candidates ()
"Known endpoint candidates for establishing an nREPL connection.
A default will be included consisting of `nrepl-default-host' and
`nrepl-default-port'."
(-distinct
(mapcar (lambda (endpoint)
(cider-string-join endpoint " "))
(cons (list (nrepl-current-host) (nrepl-default-port))
cider-known-endpoints))))
(defun cider-select-known-endpoint ()
"Select an endpoint from known endpoints.
The returned endpoint has the label removed."
(let ((selected-endpoint (split-string
(completing-read
"Host: " (cider-known-endpoint-candidates)))))
(if (= 3 (length selected-endpoint))
(cdr selected-endpoint)
selected-endpoint)))
;;;###autoload
(defun cider-connect (host port)
"Connect to an nREPL server identified by HOST and PORT."
(interactive (let ((known-endpoint (when cider-known-endpoints
(cider-select-known-endpoint))))
(list (or (car known-endpoint)
(read-string "Host: " (nrepl-current-host) nil (nrepl-current-host)))
(string-to-number (let ((port (or (cadr known-endpoint) (nrepl-default-port))))
(read-string "Port: " port nil port))))))
(setq cider-current-clojure-buffer (current-buffer))
(when (nrepl-check-for-repl-buffer `(,host ,port) nil)
(nrepl-connect host port)))
(define-obsolete-function-alias
'cider
'cider-connect)
;;;###autoload
(eval-after-load 'clojure-mode
'(progn
(define-key clojure-mode-map (kbd "C-c M-j") 'cider-jack-in)
(define-key clojure-mode-map (kbd "C-c M-c") 'cider-connect)))
(provide 'cider)
;;; cider.el ends here
|
