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cider.el
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;;; cider.el --- Clojure Interactive Development Environment that Rocks -*- lexical-binding: t -*-
;; Copyright © 2012-2013 Tim King, Phil Hagelberg, Bozhidar Batsov
;; Copyright © 2013-2018 Bozhidar Batsov, Artur Malabarba and CIDER contributors
;;
;; Author: Tim King <[email protected]>
;; Phil Hagelberg <[email protected]>
;; Bozhidar Batsov <[email protected]>
;; Artur Malabarba <[email protected]>
;; Hugo Duncan <[email protected]>
;; Steve Purcell <[email protected]>
;; Maintainer: Bozhidar Batsov <[email protected]>
;; URL: http://www.github.com/clojure-emacs/cider
;; Version: 0.18.0-snapshot
;; Package-Requires: ((emacs "25") (clojure-mode "5.7.0") (pkg-info "0.4") (queue "0.1.1") (spinner "1.7") (seq "2.16"))
;; 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 interactive development environment for Emacs, built on
;; top of nREPL.
;;; Installation:
;; Available as a package in melpa.org and stable.melpa.org
;; (add-to-list 'package-archives
;; '("melpa" . "https://melpa.org/packages/"))
;;
;; or
;;
;; (add-to-list 'package-archives
;; '("melpa-stable" . "https://stable.melpa.org/packages/") t)
;;
;; M-x package-install cider
;;; Usage:
;; M-x cider-jack-in-clj
;; M-x cider-jack-in-cljs
;;
;; M-x cider-connect-sibling-clj
;; M-x cider-connect-sibling-cljs
;;
;; M-x cider-connect-clj
;; M-x cider-connect-cljs
;;; Code:
(defgroup cider nil
"Clojure Interactive Development Environment that Rocks."
:prefix "cider-"
:group 'applications
:link '(url-link :tag "GitHub" "https://github.com/clojure-emacs/cider")
:link '(url-link :tag "Online Manual" "http://docs.cider.mx")
:link '(emacs-commentary-link :tag "Commentary" "cider"))
(require 'cider-client)
(require 'cider-eldoc)
(require 'cider-repl)
(require 'cider-repl-history)
(require 'cider-connection)
(require 'cider-mode)
(require 'cider-common)
(require 'cider-compat)
(require 'cider-debug)
(require 'tramp-sh)
(require 'subr-x)
(require 'seq)
(require 'sesman)
(defconst cider-version "0.18.0-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.")
(defconst cider-codename "Saigon"
"Codename used to denote stable releases.")
(defcustom cider-lein-command
"lein"
"The command used to execute Leiningen."
:type 'string
:group 'cider)
(defcustom cider-lein-global-options
nil
"Command global options used to execute Leiningen (e.g.: -o for offline)."
:type 'string
:group 'cider
:safe #'stringp)
(defcustom cider-lein-parameters
"repl :headless :host ::"
"Params passed to Leiningen to start an nREPL server via `cider-jack-in'."
:type 'string
:group 'cider
:safe #'stringp)
(defcustom cider-boot-command
"boot"
"The command used to execute Boot."
:type 'string
:group 'cider
:package-version '(cider . "0.9.0"))
(defcustom cider-boot-global-options
nil
"Command global options used to execute Boot (e.g.: -c for checkouts)."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.14.0"))
(defcustom cider-boot-parameters
"repl -s -H :: wait"
"Params passed to boot to start an nREPL server via `cider-jack-in'."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.9.0"))
(defcustom cider-clojure-cli-command
"clojure"
"The command used to execute clojure with tools.deps (requires Clojure 1.9+)."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.17.0"))
(defcustom cider-clojure-cli-global-options
nil
"Command line options used to execute clojure with tools.deps."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.17.0"))
(defcustom cider-clojure-cli-parameters
"-e '(require (quote cider-nrepl.main)) (cider-nrepl.main/init %s)'"
"Params passed to clojure to start an nREPL server via `cider-jack-in'.
This is evaluated using `format', with the first argument being the Clojure
vector of middleware variables as a string."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.17.0"))
(defcustom cider-shadow-cljs-command
"npx shadow-cljs"
"The command used to execute shadow-cljs.
By default we favor the project-specific shadow-cljs over the system-wide."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.17.0"))
(defcustom cider-shadow-cljs-global-options
""
"Command line options used to execute shadow-cljs (e.g.: -v for verbose mode)."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.17.0"))
(defcustom cider-shadow-cljs-parameters
"server"
"Params passed to shadow-cljs to start an nREPL server via `cider-jack-in'."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.17.0"))
(defcustom cider-gradle-command
"gradle"
"The command used to execute Gradle."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.10.0"))
(defcustom cider-gradle-global-options
"--no-daemon"
"Command line options used to execute Gradle (e.g.: -m for dry run)."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.14.0"))
(defcustom cider-gradle-parameters
"clojureRepl"
"Params passed to gradle to start an nREPL server via `cider-jack-in'."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.10.0"))
(defcustom cider-default-repl-command "clojure-cli"
"The default command and parameters to use when connecting to nREPL.
This value will only be consulted when no identifying file types, i.e.
project.clj for leiningen or build.boot for boot, could be found.
As tools.deps is bundled with Clojure itself, it's the default REPL command."
:type 'string
:group 'cider
:safe #'stringp
:package-version '(cider . "0.9.0"))
(defcustom cider-preferred-build-tool
nil
"Allow choosing a build system when there are many.
When there are artifacts from multiple build systems (\"lein\", \"boot\",
\"gradle\") the user is prompted to select one of them. When non-nil, this
variable will suppress this behavior and will select whatever build system
is indicated by the variable if present. Note, this is only when CIDER
cannot decide which of many build systems to use and will never override a
command when there is no ambiguity."
:type '(choice (const "lein")
(const "boot")
(const "clojure-cli")
(const "shadow-cljs")
(const "gradle")
(const :tag "Always ask" nil))
:group 'cider
:safe #'stringp
:package-version '(cider . "0.13.0"))
(defcustom cider-allow-jack-in-without-project 'warn
"Controls what happens when doing `cider-jack-in' outside a project.
When set to 'warn you'd prompted to confirm the command.
When set to t `cider-jack-in' will quietly continue.
When set to nil `cider-jack-in' will fail."
:type '(choice (const :tag "always" t)
(const 'warn)
(const :tag "never" nil))
:group 'cider
:safe #'stringp
:package-version '(cider . "0.15.0"))
(defcustom cider-known-endpoints nil
"A list of connection 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 '(repeat (list (string :tag "label")
(string :tag "host")
(string :tag "port")))
:group 'cider)
(defcustom cider-connected-hook nil
"List of functions to call when connected to Clojure nREPL server."
:type 'hook
:group 'cider
:package-version '(cider . "0.9.0"))
(defcustom cider-disconnected-hook nil
"List of functions to call when disconnected from the Clojure nREPL server."
:type 'hook
:group 'cider
:package-version '(cider . "0.9.0"))
(defcustom cider-auto-mode t
"When non-nil, automatically enable cider mode for all Clojure buffers."
:type 'boolean
:safe #'booleanp
:package-version '(cider . "0.9.0"))
(defcustom cider-inject-dependencies-at-jack-in t
"When nil, do not inject repl dependencies (most likely nREPL middlewares) at `cider-jack-in' time."
:type 'boolean
:safe #'booleanp
:version '(cider . "0.11.0"))
(defcustom cider-offer-to-open-cljs-app-in-browser t
"When nil, do not offer to open ClojureScript apps in a browser on connect."
:type 'boolean
:safe #'booleanp
:version '(cider . "0.15.0"))
(defvar cider-ps-running-nrepls-command "ps u | grep leiningen"
"Process snapshot command used in `cider-locate-running-nrepl-ports'.")
(defvar cider-ps-running-nrepl-path-regexp-list
'("\\(?:leiningen.original.pwd=\\)\\(.+?\\) -D"
"\\(?:-classpath +:?\\(.+?\\)/self-installs\\)")
"Regexp list to get project paths.
Extract project paths from output of `cider-ps-running-nrepls-command'.
Sub-match 1 must be the project path.")
(defvar cider-host-history nil
"Completion history for connection hosts.")
;;;###autoload
(defun cider-version ()
"Display CIDER's version."
(interactive)
(message "CIDER %s" (cider--version)))
(defun cider-jack-in-command (project-type)
"Determine the command `cider-jack-in' needs to invoke for the PROJECT-TYPE."
(pcase project-type
("lein" cider-lein-command)
("boot" cider-boot-command)
("clojure-cli" cider-clojure-cli-command)
("shadow-cljs" cider-shadow-cljs-command)
("gradle" cider-gradle-command)
(_ (user-error "Unsupported project type `%s'" project-type))))
(defun cider-jack-in-resolve-command (project-type)
"Determine the resolved file path to `cider-jack-in-command'.
Throws an error if PROJECT-TYPE is unknown. Known types are
\"lein\", \"boot\", and \"gradle\"."
(pcase project-type
("lein" (cider--resolve-command cider-lein-command))
("boot" (cider--resolve-command cider-boot-command))
("clojure-cli" (cider--resolve-command cider-clojure-cli-command))
;; here we have to account for the possibility that the command is either
;; "npx shadow-cljs" or just "shadow-cljs"
("shadow-cljs" (cider--resolve-command (car (split-string cider-shadow-cljs-command))))
("gradle" (cider--resolve-command cider-gradle-command))
(_ (user-error "Unsupported project type `%s'" project-type))))
(defun cider-jack-in-global-options (project-type)
"Determine the command line options for `cider-jack-in' for the PROJECT-TYPE."
(pcase project-type
("lein" cider-lein-global-options)
("boot" cider-boot-global-options)
("clojure-cli" cider-clojure-cli-global-options)
("shadow-cljs" cider-shadow-cljs-global-options)
("gradle" cider-gradle-global-options)
(_ (user-error "Unsupported project type `%s'" project-type))))
(defun cider-jack-in-params (project-type)
"Determine the commands params for `cider-jack-in' for the PROJECT-TYPE."
(pcase project-type
("lein" cider-lein-parameters)
("boot" cider-boot-parameters)
("clojure-cli" (format cider-clojure-cli-parameters
(concat
"["
(mapconcat
(apply-partially #'format "\"%s\"")
(cider-jack-in-normalized-nrepl-middlewares)
", ")
"]")))
("shadow-cljs" cider-shadow-cljs-parameters)
("gradle" cider-gradle-parameters)
(_ (user-error "Unsupported project type `%s'" project-type))))
;;; Jack-in dependencies injection
(defvar cider-jack-in-dependencies nil
"List of dependencies where elements are lists of artifact name and version.")
(put 'cider-jack-in-dependencies 'risky-local-variable t)
(cider-add-to-alist 'cider-jack-in-dependencies
"org.clojure/tools.nrepl" "0.2.13")
(defvar cider-jack-in-cljs-dependencies nil
"List of dependencies where elements are lists of artifact name and version.
Added to `cider-jack-in-dependencies' when doing `cider-jack-in-cljs'.")
(put 'cider-jack-in-cljs-dependencies 'risky-local-variable t)
(cider-add-to-alist 'cider-jack-in-cljs-dependencies "cider/piggieback" "0.3.5")
(defvar cider-jack-in-dependencies-exclusions nil
"List of exclusions for jack in dependencies.
Elements of the list are artifact name and list of exclusions to apply for the artifact.")
(put 'cider-jack-in-dependencies-exclusions 'risky-local-variable t)
(cider-add-to-alist 'cider-jack-in-dependencies-exclusions
"org.clojure/tools.nrepl" '("org.clojure/clojure"))
(defcustom cider-jack-in-auto-inject-clojure nil
"Version of clojure to auto-inject into REPL.
If nil, do not inject Clojure into the REPL. If `latest', inject
`cider-latest-clojure-version', which should approximate to the most recent
version of Clojure. If `minimal', inject `cider-minimum-clojure-version',
which will be the lowest version CIDER supports. If a string, use this as
the version number. If it is a list, the first element should be a string,
specifying the artifact ID, and the second element the version number."
:type '(choice (const :tag "None" nil)
(const :tag "Latest" 'latest)
(const :tag "Minimal" 'minimal)
(string :tag "Specific Version")
(list :tag "Artifact ID and Version"
(string :tag "Artifact ID")
(string :tag "Version"))))
(defvar cider-jack-in-lein-plugins nil
"List of Leiningen plugins to be injected at jack-in.
Each element is a list of artifact name and version, followed optionally by
keyword arguments. The only keyword argument currently accepted is
`:predicate', which should be given a function that takes the list (name,
version, and keyword arguments) and returns non-nil to indicate that the
plugin should actually be injected. (This is useful primarily for packages
that extend CIDER, not for users. For example, a refactoring package might
want to inject some middleware only when within a project context.)")
(put 'cider-jack-in-lein-plugins 'risky-local-variable t)
(cider-add-to-alist 'cider-jack-in-lein-plugins
"cider/cider-nrepl" (upcase cider-version))
(defvar cider-jack-in-cljs-lein-plugins nil
"List of Leiningen plugins to be injected at jack-in.
Added to `cider-jack-in-lein-plugins' (which see) when doing
`cider-jack-in-cljs'.")
(put 'cider-jack-in-cljs-lein-plugins 'risky-local-variable t)
(defun cider-jack-in-normalized-lein-plugins ()
"Return a normalized list of Leiningen plugins to be injected.
See `cider-jack-in-lein-plugins' for the format, except that the list
returned by this function does not include keyword arguments."
(thread-last cider-jack-in-lein-plugins
(seq-filter
(lambda (spec)
(if-let* ((pred (plist-get (seq-drop spec 2) :predicate)))
(funcall pred spec)
t)))
(mapcar
(lambda (spec)
(seq-take spec 2)))))
(defvar cider-jack-in-nrepl-middlewares nil
"List of Clojure variable names.
Each of these Clojure variables should hold a vector of nREPL middlewares.
Instead of a string, an element can be a list containing a string followed
by optional keyword arguments. The only keyword argument currently
accepted is `:predicate', which should be given a function that takes the
list (string and keyword arguments) and returns non-nil to indicate that
the middlewares should actually be injected.")
(put 'cider-jack-in-nrepl-middlewares 'risky-local-variable t)
(add-to-list 'cider-jack-in-nrepl-middlewares "cider.nrepl/cider-middleware")
(defvar cider-jack-in-cljs-nrepl-middlewares nil
"List of Clojure variable names.
Added to `cider-jack-in-nrepl-middlewares' (which see) when doing
`cider-jack-in-cljs'.")
(put 'cider-jack-in-cljs-nrepl-middlewares 'risky-local-variable t)
(add-to-list 'cider-jack-in-cljs-nrepl-middlewares "cider.piggieback/wrap-cljs-repl")
(defun cider-jack-in-normalized-nrepl-middlewares ()
"Return a normalized list of middleware variable names.
See `cider-jack-in-nrepl-middlewares' for the format, except that the list
returned by this function only contains strings."
(thread-last cider-jack-in-nrepl-middlewares
(seq-filter
(lambda (spec)
(or (not (listp spec))
(if-let* ((pred (plist-get (cdr spec) :predicate)))
(funcall pred spec)
t))))
(mapcar
(lambda (spec)
(if (listp spec)
(car spec)
spec)))))
(defun cider--list-as-boot-artifact (list)
"Return a boot artifact string described by the elements of LIST.
LIST should have the form (ARTIFACT-NAME ARTIFACT-VERSION). The returned
string is quoted for passing as argument to an inferior shell."
(concat "-d " (shell-quote-argument (format "%s:%s" (car list) (cadr list)))))
(defun cider-boot-dependencies (dependencies)
"Return a list of boot artifact strings created from DEPENDENCIES."
(concat (mapconcat #'cider--list-as-boot-artifact dependencies " ")
(unless (seq-empty-p dependencies) " ")))
(defun cider-boot-middleware-task (params middlewares)
"Create a command to add MIDDLEWARES with corresponding PARAMS."
(concat "cider.tasks/add-middleware "
(mapconcat (lambda (middleware)
(format "-m %s" (shell-quote-argument middleware)))
middlewares
" ")
" " params))
(defun cider-boot-jack-in-dependencies (global-opts params dependencies plugins middlewares)
"Create boot jack-in dependencies.
Does so by concatenating GLOBAL-OPTS, DEPENDENCIES,
PLUGINS and MIDDLEWARES. PARAMS and MIDDLEWARES are passed on to
`cider-boot-middleware-task` before concatenating and DEPENDENCIES and PLUGINS
are passed on to `cider-boot-dependencies`."
(concat global-opts
(unless (seq-empty-p global-opts) " ")
"-i \"(require 'cider.tasks)\" " ;; Note the space at the end here
(cider-boot-dependencies (append dependencies plugins))
(cider-boot-middleware-task params middlewares)))
(defun cider--lein-artifact-exclusions (exclusions)
"Return an exclusions vector described by the elements of EXCLUSIONS."
(if exclusions
(format " :exclusions [%s]" (mapconcat #'identity exclusions " "))
""))
(defun cider--list-as-lein-artifact (list &optional exclusions)
"Return an artifact string described by the elements of LIST.
LIST should have the form (ARTIFACT-NAME ARTIFACT-VERSION). Optionally a list
of EXCLUSIONS can be provided as well. The returned
string is quoted for passing as argument to an inferior shell."
(shell-quote-argument (format "[%s %S%s]" (car list) (cadr list) (cider--lein-artifact-exclusions exclusions))))
(defun cider-lein-jack-in-dependencies (global-opts params dependencies dependencies-exclusions lein-plugins)
"Create lein jack-in dependencies.
Does so by concatenating GLOBAL-OPTS, DEPENDENCIES, with DEPENDENCIES-EXCLUSIONS
removed, LEIN-PLUGINS, and finally PARAMS."
(concat
global-opts
(unless (seq-empty-p global-opts) " ")
(mapconcat #'identity
(append (seq-map (lambda (dep)
(let ((exclusions (cadr (assoc (car dep) dependencies-exclusions))))
(concat "update-in :dependencies conj "
(cider--list-as-lein-artifact dep exclusions))))
dependencies)
(seq-map (lambda (plugin)
(concat "update-in :plugins conj "
(cider--list-as-lein-artifact plugin)))
lein-plugins))
" -- ")
" -- "
params))
(defun cider-clojure-cli-jack-in-dependencies (global-opts params dependencies)
"Create Clojure tools.deps jack-in dependencies.
Does so by concatenating GLOBAL-OPTS, DEPENDENCIES finally PARAMS."
(let ((dependencies (append dependencies cider-jack-in-lein-plugins)))
(concat
global-opts
(unless (seq-empty-p global-opts) " ")
"-Sdeps '{:deps {"
(mapconcat #'identity
(seq-map (lambda (dep) (format "%s {:mvn/version \"%s\"}" (car dep) (cadr dep))) dependencies)
" ")
"}}' "
params)))
(defun cider-shadow-cljs-jack-in-dependencies (global-opts params dependencies)
"Create shadow-cljs jack-in deps.
Does so by concatenating GLOBAL-OPTS, DEPENDENCIES finally PARAMS."
(let ((dependencies (append dependencies cider-jack-in-lein-plugins)))
(concat
global-opts
(unless (seq-empty-p global-opts) " ")
(mapconcat #'identity
(seq-map (lambda (dep) (format "-d %s:%s" (car dep) (cadr dep))) dependencies)
" ")
" "
params)))
(defun cider-add-clojure-dependencies-maybe (dependencies)
"Return DEPENDENCIES with an added Clojure dependency if requested.
See also `cider-jack-in-auto-inject-clojure'."
(if cider-jack-in-auto-inject-clojure
(if (consp cider-jack-in-auto-inject-clojure)
(cons cider-jack-in-auto-inject-clojure dependencies)
(cons (list cider-clojure-artifact-id
(cond
((stringp cider-jack-in-auto-inject-clojure)
cider-jack-in-auto-inject-clojure)
((eq cider-jack-in-auto-inject-clojure 'minimal)
cider-minimum-clojure-version)
((eq cider-jack-in-auto-inject-clojure 'latest)
cider-latest-clojure-version)))
dependencies))
dependencies))
(defun cider-inject-jack-in-dependencies (global-opts params project-type)
"Return GLOBAL-OPTS and PARAMS with injected REPL dependencies.
These are set in `cider-jack-in-dependencies', `cider-jack-in-lein-plugins' and
`cider-jack-in-nrepl-middlewares' are injected from the CLI according to
the used PROJECT-TYPE. Eliminates the need for hacking profiles.clj or the
boot script for supporting cider with its nREPL middleware and
dependencies."
(pcase project-type
("lein" (cider-lein-jack-in-dependencies
global-opts
params
(cider-add-clojure-dependencies-maybe
cider-jack-in-dependencies)
cider-jack-in-dependencies-exclusions
(cider-jack-in-normalized-lein-plugins)))
("boot" (cider-boot-jack-in-dependencies
global-opts
params
(cider-add-clojure-dependencies-maybe
cider-jack-in-dependencies)
(cider-jack-in-normalized-lein-plugins)
(cider-jack-in-normalized-nrepl-middlewares)))
("clojure-cli" (cider-clojure-cli-jack-in-dependencies
global-opts
params
(cider-add-clojure-dependencies-maybe
cider-jack-in-dependencies)))
("shadow-cljs" (cider-shadow-cljs-jack-in-dependencies
global-opts
params
(cider-add-clojure-dependencies-maybe
cider-jack-in-dependencies)))
("gradle" (concat
global-opts
(unless (seq-empty-p global-opts) " ")
params))
(_ (error "Unsupported project type `%s'" project-type))))
;;; ClojureScript REPL creation
(defcustom cider-check-cljs-repl-requirements t
"When non-nil will run the requirement checks for the different cljs repls.
Generally you should not disable this unless you run into some faulty check."
:type 'boolean
:safe #'booleanp
:version '(cider . "0.17.0"))
(defun cider-verify-clojurescript-is-present ()
"Check whether ClojureScript is present."
(unless (cider-library-present-p "clojure/clojurescript")
(user-error "ClojureScript is not available. See http://docs.cider.mx/en/latest/clojurescript for details")))
(defun cider-verify-piggieback-is-present ()
"Check whether the piggieback middleware is present."
(unless (cider-library-present-p "cider/piggieback")
(user-error "Piggieback is not available. See http://docs.cider.mx/en/latest/clojurescript for details")))
(defun cider-check-nashorn-requirements ()
"Check whether we can start a Nashorn ClojureScript REPL."
(cider-verify-piggieback-is-present)
(when (string-prefix-p "1.7" (cider--java-version))
(user-error "Nashorn is supported only on Java 8 or newer")))
(defun cider-check-node-requirements ()
"Check whether we can start a Node ClojureScript REPL."
(cider-verify-piggieback-is-present)
(unless (executable-find "node")
(user-error "Node.js is not present on the exec-path. Make sure you've installed it and your exec-path is properly set")))
(defun cider-check-figwheel-requirements ()
"Check whether we can start a Figwheel ClojureScript REPL."
(cider-verify-piggieback-is-present)
(unless (cider-library-present-p "figwheel-sidecar/figwheel-sidecar")
(user-error "Figwheel-sidecar is not available. Please check http://docs.cider.mx/en/latest/clojurescript")))
(defun cider-check-figwheel-main-requirements ()
"Check whether we can start a Figwheel ClojureScript REPL."
(cider-verify-piggieback-is-present)
(unless (cider-library-present-p "bhauman/figwheel-main")
(user-error "Figwheel-main is not available. Please check http://docs.cider.mx/en/latest/clojurescript")))
(defun cider-check-weasel-requirements ()
"Check whether we can start a Weasel ClojureScript REPL."
(cider-verify-piggieback-is-present)
(unless (cider-library-present-p "weasel/weasel")
(user-error "Weasel in not available. Please check http://docs.cider.mx/en/latest/clojurescript/#browser-connected-clojurescript-repl")))
(defun cider-check-boot-requirements ()
"Check whether we can start a Boot ClojureScript REPL."
(cider-verify-piggieback-is-present)
(unless (cider-library-present-p "adzerk/boot-cljs-repl")
(user-error "The Boot ClojureScript REPL is not available. Please check https://github.com/adzerk-oss/boot-cljs-repl/blob/master/README.md")))
(defun cider-check-shadow-cljs-requirements ()
"Check whether we can start a shadow-cljs REPL."
(unless (cider-library-present-p "thheller/shadow-cljs")
(user-error "The shadow-cljs ClojureScript REPL is not available")))
(defun cider-shadow-cljs-init-form ()
"Generate the init form for a shadow-cljs REPL.
We have to prompt the user to select a build, that's why
this is a command, not just a string."
(let ((form "(do (require '[shadow.cljs.devtools.api :as shadow]) (shadow/watch :%s) (shadow/nrepl-select :%s))")
(build (string-remove-prefix ":" (read-from-minibuffer "Select shadow-cljs build: "))))
(format form build build)))
(defcustom cider-figwheel-main-default-options nil
"Defines the `figwheel.main/start' options.
Note that figwheel-main/start can also accept a map of options, refer to
Figwheel for details."
:type 'string
:safe (lambda (s) (or (null s) (stringp s)))
:package-version '(cider . "0.18.0"))
(defun cider-figwheel-main-init-form ()
"Produce the figwheel-main ClojureScript init form."
(let ((form "(do (require 'figwheel.main) (figwheel.main/start %s))")
(options (or cider-figwheel-main-default-options
(read-from-minibuffer "Select figwheel-main build: "))))
(format form options)))
(defun cider-custom-cljs-repl-init-form ()
"Prompt for a form that would start a ClojureScript REPL.
The supplied string will be wrapped in a do form if needed."
(let ((form (read-from-minibuffer "Please, provide a form to start a ClojureScript REPL: ")))
;; TODO: We should probably make this more robust (e.g. by using a regexp or
;; parsing the form).
(if (string-prefix-p "(do" form)
form
(format "(do %s)" form))))
(defvar cider-cljs-repl-types
'((nashorn "(do (require 'cljs.repl.nashorn) (cider.piggieback/cljs-repl (cljs.repl.nashorn/repl-env)))"
cider-check-nashorn-requirements)
(figwheel "(do (require 'figwheel-sidecar.repl-api) (figwheel-sidecar.repl-api/start-figwheel!) (figwheel-sidecar.repl-api/cljs-repl))"
cider-check-figwheel-requirements)
(figwheel-main cider-figwheel-main-init-form cider-check-figwheel-main-requirements)
(node "(do (require 'cljs.repl.node) (cider.piggieback/cljs-repl (cljs.repl.node/repl-env)))"
cider-check-node-requirements)
(weasel "(do (require 'weasel.repl.websocket) (cider.piggieback/cljs-repl (weasel.repl.websocket/repl-env :ip \"127.0.0.1\" :port 9001)))"
cider-check-weasel-requirements)
(boot "(do (require 'adzerk.boot-cljs-repl) (adzerk.boot-cljs-repl/start-repl))"
cider-check-boot-requirements)
(shadow cider-shadow-cljs-init-form cider-check-shadow-cljs-requirements)
(custom cider-custom-cljs-repl-init-form nil))
"A list of supported ClojureScript REPLs.
For each one we have its name, the form we need to evaluate in a Clojure
REPL to start the ClojureScript REPL and functions to very their requirements.
The form should be either a string or a function producing a string.")
(defun cider-register-cljs-repl-type (type init-form &optional requirements-fn)
"Register a new ClojureScript REPL type.
Types are defined by the following:
- TYPE - symbol identifier that will be used to refer to the REPL type
- INIT-FORM - string or function (symbol) producing string
- REQUIREMENTS-FN - function to check whether the REPL can be started.
This param is optional.
All this function does is modifying `cider-cljs-repl-types'.
It's intended to be used in your Emacs config."
(unless (symbolp type)
(user-error "The REPL type must be a symbol"))
(unless (or (stringp init-form) (symbolp init-form))
(user-error "The init form must be a string or a symbol referring to a function"))
(unless (or (null requirements-fn) (symbolp requirements-fn))
(user-error "The requirements-fn must be a symbol referring to a function"))
(add-to-list 'cider-cljs-repl-types (list type init-form requirements-fn)))
(defcustom cider-default-cljs-repl nil
"The default ClojureScript REPL to start.
This affects commands like `cider-jack-in-clojurescript'. Generally it's
intended to be set via .dir-locals.el for individual projects, as its
relatively unlikely you'd like to use the same type of REPL in each project
you're working on."
:type '(choice (const :tag "Nashorn" nashorn)
(const :tag "Figwheel" figwheel)
(const :tag "Node" node)
(const :tag "Weasel" weasel)
(const :tag "Boot" boot)
(const :tag "Shadow" shadow)
(const :tag "Custom" custom))
:group 'cider
:safe #'symbolp
:package-version '(cider . "0.17.0"))
(make-obsolete-variable 'cider-cljs-lein-repl 'cider-default-cljs-repl "0.17")
(make-obsolete-variable 'cider-cljs-boot-repl 'cider-default-cljs-repl "0.17")
(make-obsolete-variable 'cider-cljs-gradle-repl 'cider-default-cljs-repl "0.17")
(defun cider-select-cljs-repl ()
"Select the ClojureScript REPL to use with `cider-jack-in-clojurescript'."
(let ((repl-types (mapcar #'car cider-cljs-repl-types)))
(intern (completing-read "Select ClojureScript REPL type: " repl-types))))
(defun cider-cljs-repl-form (repl-type)
"Get the cljs REPL form for REPL-TYPE."
(if-let* ((repl-form (cadr (seq-find
(lambda (entry)
(eq (car entry) repl-type))
cider-cljs-repl-types))))
;; repl-form can be either a string or a function producing a string
(if (symbolp repl-form)
(funcall repl-form)
repl-form)
(user-error "No ClojureScript REPL type %s found. Please make sure that `cider-cljs-repl-types' has an entry for it" repl-type)))
(defun cider-verify-cljs-repl-requirements (&optional repl-type)
"Verify that the requirements for REPL-TYPE are met.
Return REPL-TYPE if requirements are met."
(let ((repl-type (or repl-type
cider-default-cljs-repl
(cider-select-cljs-repl))))
(when-let* ((fun (nth 2 (seq-find
(lambda (entry)
(eq (car entry) repl-type))
cider-cljs-repl-types))))
(funcall fun))
repl-type))
(defun cider--offer-to-open-app-in-browser (server-buffer)
"Look for a server address in SERVER-BUFFER and offer to open it."
(when (buffer-live-p server-buffer)
(with-current-buffer server-buffer
(save-excursion
(goto-char (point-min))
(when-let* ((url (and (search-forward-regexp "http://localhost:[0-9]+" nil 'noerror)
(match-string 0))))
(when (y-or-n-p (format "Visit ‘%s’ in a browser? " url))
(browse-url url)))))))
;;; Barefoot Connectors
(defun cider--jack-in (do-prompt on-port-callback)
"Core of all cider-jack-in-xyz functions.
Prompt for the project and nREPL server command when DO-PROMPT is non-nil.
ON-PORT-CALLBACK is passed to `nrepl-start-server-process'."
(declare (indent 1))
(let* ((project-type (cider-project-type))
(command (cider-jack-in-command project-type))
(command-resolved (cider-jack-in-resolve-command project-type))
(command-global-opts (cider-jack-in-global-options project-type))
(command-params (cider-jack-in-params project-type)))
(if command-resolved
(let* ((project (when do-prompt
(read-directory-name "Project: ")))
(project-dir (clojure-project-dir
(or project (cider-current-dir))))
(params (if do-prompt
(read-string (format "nREPL server command: %s " command-params)
command-params)
command-params))
(params (if cider-inject-dependencies-at-jack-in
(cider-inject-jack-in-dependencies command-global-opts params project-type)
params)))
(if (or project-dir cider-allow-jack-in-without-project)
(when (or project-dir
(eq cider-allow-jack-in-without-project t)
(and (null project-dir)
(eq cider-allow-jack-in-without-project 'warn)
(y-or-n-p "Are you sure you want to run `cider-jack-in' without a Clojure project? ")))
(let* ((cmd (format "%s %s" command-resolved params)))
(nrepl-start-server-process project-dir cmd on-port-callback)))
(user-error "`cider-jack-in' is not allowed without a Clojure project")))
(user-error "The %s executable isn't on your `exec-path'" command))))
(defun cider--check-cljs (&optional repl-type no-error)
"Verify that all cljs requirements are met for cljs REPL-TYPE.
Return REPL-TYPE of requirement are met, and throw an ‘user-error’ otherwise.
When NO-ERROR is non-nil, don't throw an error, issue a message and return
nil."
(if no-error
(condition-case ex
(progn
(cider-verify-clojurescript-is-present)
(cider-verify-cljs-repl-requirements repl-type))
(error
(message "Invalid CLJS dependency: %S" ex)
nil))
(cider-verify-clojurescript-is-present)
(cider-verify-cljs-repl-requirements repl-type)))
(defun cider--cljs-init-hook-builder (cljs-repl-type)
"Create an cljs repl initializer for CLJS-REPL-TYPE."
(lambda ()
(cider--check-cljs cljs-repl-type)
(cider-nrepl-send-request
(list "op" "eval"
"ns" (cider-current-ns)
"code" (cider-cljs-repl-form cljs-repl-type))
(cider-repl-handler (current-buffer)))
(when (and (buffer-live-p nrepl-server-buffer)
cider-offer-to-open-cljs-app-in-browser)
(cider--offer-to-open-app-in-browser nrepl-server-buffer))))
;;; User Level Connectors
;;;###autoload
(defun cider-jack-in-clj (&optional do-prompt)
"Start an nREPL server for the current project and connect to it.
Prompt for the project and nREPL server command when DO-PROMPT is non-nil."
(interactive "P")
(cider--jack-in do-prompt
(lambda (server-buffer)
(cider-connect-sibling-clj server-buffer))))
;;;###autoload
(defun cider-jack-in-cljs (&optional do-prompt)
"Start an nREPL server for the current project and connect to it.
Prompt for the project and nREPL server command when DO-PROMPT is non-nil."
(interactive "P")
(let ((cider-jack-in-dependencies (append cider-jack-in-dependencies cider-jack-in-cljs-dependencies))
(cider-jack-in-lein-plugins (append cider-jack-in-lein-plugins cider-jack-in-cljs-lein-plugins))
(cider-jack-in-nrepl-middlewares (append cider-jack-in-nrepl-middlewares cider-jack-in-cljs-nrepl-middlewares))
(cljs-repl-type cider-default-cljs-repl))
(cider--jack-in do-prompt
(lambda (server-buffer)
(let ((cider-default-cljs-repl cljs-repl-type))
(cider-connect-sibling-cljs server-buffer))))))
;;;###autoload
(defun cider-jack-in-clj&cljs (&optional do-prompt soft-cljs-start)
"Start an nREPL server and connect with clj and cljs REPLs.
Prompt for the project and nREPL server command when DO-PROMPT is non-nil.
When SOFT-CLJS-START is non-nil, start cljs REPL only when the
ClojureScript dependencies are met."
(interactive "P")
(let ((cider-jack-in-dependencies (append cider-jack-in-dependencies cider-jack-in-cljs-dependencies))
(cider-jack-in-lein-plugins (append cider-jack-in-lein-plugins cider-jack-in-cljs-lein-plugins))
(cider-jack-in-nrepl-middlewares (append cider-jack-in-nrepl-middlewares cider-jack-in-cljs-nrepl-middlewares))
(cljs-repl-type cider-default-cljs-repl))
(cider--jack-in do-prompt
(lambda (server-buffer)
(let ((clj-repl (cider-connect-sibling-clj server-buffer)))
(if soft-cljs-start
(when-let* ((cider-default-cljs-repl (cider--check-cljs cljs-repl-type 'no-error)))
(cider-connect-sibling-cljs clj-repl))
(let ((cider-default-cljs-repl cljs-repl-type))
(cider-connect-sibling-cljs clj-repl))))))))
;;;###autoload
(defun cider-connect-sibling-clj (other-repl)
"Create a Clojure REPL with the same server as OTHER-REPL.
OTHER-REPL can also be a server buffer, in which case a new session with a
REPL for that server is created."
(interactive (list (cider-current-repl)))
(cider-nrepl-connect
(let ((ses-name (unless (nrepl-server-p other-repl)
(sesman-session-name-for-object 'CIDER other-repl))))
(thread-first (cider--gather-connect-params other-repl)
(plist-put :repl-type "clj")
(plist-put :session-name ses-name)
(plist-put :repl-init-function nil)))))
;;;###autoload
(defun cider-connect-sibling-cljs (other-repl)
"Create a ClojureScript REPL with the same server as OTHER-REPL.
Normally this would prompt for the ClojureScript REPL to start (e.g. Node,
Figwheel, etc), unless you've set `cider-default-cljs-repl'. OTHER-REPL
can also be a server buffer, in which case a new session with a REPL for
that server is created."
(interactive (list (cider-current-repl)))
(let ((cljs-repl-type (or cider-default-cljs-repl (cider-select-cljs-repl)))
(ses-name (unless (nrepl-server-p other-repl)
(sesman-session-name-for-object 'CIDER other-repl))))
(cider-nrepl-connect
(thread-first (cider--gather-connect-params other-repl)
(plist-put :repl-type "cljs")
(plist-put :session-name ses-name)
(plist-put :repl-init-function (cider--cljs-init-hook-builder cljs-repl-type))))))
;;;###autoload
(defun cider-connect-clj (host port)
"Initialize a CLJ connection to an nREPL server at HOST and PORT."
(interactive (cider-select-endpoint))
(cider-nrepl-connect
(list :host host :port port
:repl-type "clj"
:repl-init-function nil
:session-name nil
:project-dir (or (clojure-project-dir (cider-current-dir))
default-directory))))
;;;###autoload
(defun cider-connect-cljs (host port)
"Initialize a CLJS connection to an nREPL server at HOST and PORT."
(interactive (cider-select-endpoint))
(let ((cljs-repl-type (or cider-default-cljs-repl
(cider-select-cljs-repl))))
(cider-nrepl-connect
(list :host host :port port
:repl-type "cljs"
:repl-init-function (cider--cljs-init-hook-builder cljs-repl-type)
:session-name nil
:project-dir (or (clojure-project-dir (cider-current-dir))
default-directory)))))
;;;###autoload
(defun cider-connect-clj&cljs (host port &optional soft-cljs-start)
"Initialize a CLJ and CLJS connection to an nREPL server at HOST and PORT.
When SOFT-CLJS-START is non-nil, don't start if ClojureScript requirements
are not met."
(interactive (cider-select-endpoint))
(let ((clj-repl (cider-connect-clj host port)))
(if soft-cljs-start
(when-let* ((cider-default-cljs-repl (cider--check-cljs nil 'no-error)))
(cider-connect-sibling-cljs clj-repl))
(cider-connect-sibling-cljs clj-repl))))
(defvar cider-connection-init-commands
'(cider-jack-in-clj
cider-jack-in-cljs