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main.cljc
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(ns figwheel.main
#?(:clj
(:require
[cljs.analyzer :as ana]
[cljs.analyzer.api :as ana-api]
[cljs.build.api :as bapi]
[cljs.compiler]
[cljs.closure]
[cljs.cli :as cli]
[cljs.env]
[cljs.main :as cm]
[cljs.repl]
[cljs.repl.figwheel]
[cljs.util]
[clojure.data.json :as json]
[clojure.java.io :as io]
[clojure.pprint :refer [pprint]]
[clojure.string :as string]
[clojure.edn :as edn]
[clojure.java.shell :as sh]
[clojure.tools.reader.edn :as redn]
[clojure.tools.reader.reader-types :as rtypes]
[clojure.walk :as walk]
[figwheel.core :as fw-core]
[figwheel.main.ansi-party :as ansip]
[figwheel.main.logging :as log]
[figwheel.main.util :as fw-util]
[figwheel.main.watching :as fww]
[figwheel.main.helper :as helper]
[figwheel.main.npm :as npm]
[figwheel.main.async-result :as async-result]
[figwheel.main.react-native :as react-native]
[figwheel.main.testing :as testing]
[figwheel.repl :as fw-repl]
[figwheel.main.compat.ana-api :as ana-compat]
[figwheel.tools.exceptions :as fig-ex]
[certifiable.main :as certifiable]
[certifiable.log]))
#?(:clj
(:import
[java.io StringReader]
java.net.InetAddress
java.net.URI
java.net.URLEncoder
java.nio.file.Paths))
#?(:cljs
(:require-macros [figwheel.main])))
#?(:clj
(do
(def ^:dynamic *base-config*)
(def ^:dynamic *config*)
(def default-target-dir "target")
(defonce process-unique (subs (str (java.util.UUID/randomUUID)) 0 6))
(defn- time-elapsed [started-at]
(let [elapsed-us (- (System/currentTimeMillis) started-at)]
(with-precision 2
(str (/ (double elapsed-us) 1000) " seconds"))))
(defn- extract-bundle-cmd-cli [opts]
(get-in opts [:bundle-cmd (or (#{:none} (:optimizations opts :none)) :default)]))
(defn bundle-once? [config]
(if (not (contains? config :bundle-freq))
(get config :bundle-once true)
(= :once (get config :bundle-freq :once))))
(defn bundle-always? [config]
(if (not (contains? config :bundle-freq))
(not (get config :bundle-once true))
(= :always (get config :bundle-freq :once))))
(defn bundle-smart? [config]
(= :smart (get config :bundle-freq :once)))
(defn bundle-once-opts [config opts]
(if (bundle-once? config)
(dissoc opts :bundle-cmd)
opts))
(def NPM-DEPS-FILE "npm_deps.js")
(defn bundle-smart-opts [opts & [scope]]
(if (and (bundle-smart? (::config *config*))
(let [{:keys [output-to output-dir]} opts
output-to? (fw-util/file-has-changed? output-to scope)
npm-deps? (fw-util/file-has-changed? (io/file output-dir NPM-DEPS-FILE) scope)]
(and (not output-to?) (not npm-deps?))))
(dissoc opts :bundle-cmd)
opts))
;; filling in a bundle-cmd template at the last moment
(let [npx-cmd (fw-util/npx-executable)]
(defn- fill-in-bundle-cmd-template [opts final-output-to]
(let [final-output-to-file (io/file final-output-to)
file-path (try (.getParent final-output-to-file) (catch Throwable t nil))
file-name (try (.getName final-output-to-file) (catch Throwable t nil))
fill-in (cond-> {:output-to (str (fw-util/dot-slash (:output-to opts)))
:final-output-to (str (fw-util/dot-slash final-output-to))
:none :none
:default :default
:npx-cmd npx-cmd}
file-path (assoc :final-output-dir (str (fw-util/dot-slash file-path)))
file-name (assoc :final-output-filename file-name))]
(if (:bundle-cmd opts)
(update opts :bundle-cmd
#(walk/postwalk
(fn [x]
(if (keyword? x)
(if-let [replace (fill-in x)]
replace
(throw (ex-info (format "No %s available to fill :bundle-cmd template" x)
{})))
x))
%))
opts))))
;; taken and modified from cljs.closure/run-bundle-cmd
(defn run-bundle-cmd* [opts]
(when-let [cmd (extract-bundle-cmd-cli opts)]
(let [{:keys [exit out err]}
(try
(log/info (str "Bundling: " (string/join " " cmd)))
(apply sh/sh cmd)
(catch Throwable t
(throw
(ex-info (str "Bundling command failed: " (.getMessage t))
{::error true :cmd cmd} t))))]
(when-not (== 0 exit)
(throw
(ex-info (cond-> (str "Bundling command failed")
(not (string/blank? out)) (str "\n" out)
(not (string/blank? err)) (str "\n" err))
{::error true :cmd cmd :exit-code exit :stdout out :stderr err}))))))
(defn run-bundle-cmd
([opts] (run-bundle-cmd opts (:final-output-to (::config *config*))))
([opts final-output-to]
(let [opts (fill-in-bundle-cmd-template opts final-output-to)]
(run-bundle-cmd* opts))))
(defn- wrap-with-bundling [build-fn]
(fn [id build-inputs opts & args]
(let [bundling? (and (= :bundle (:target opts))
(:bundle-cmd opts))]
(when bundling?
(fw-util/file-has-changed? (:output-to opts) id)
(fw-util/file-has-changed? (io/file (:output-dir opts) NPM-DEPS-FILE) id))
(apply build-fn id build-inputs (dissoc opts :bundle-cmd) args)
(when bundling?
(run-bundle-cmd (bundle-smart-opts opts id))))))
(defn- wrap-with-build-logging [build-fn]
(fn [id? build-inputs opts & args]
(let [started-at (System/currentTimeMillis)
{:keys [output-to output-dir]} opts]
;; print start message
(log/info (str "Compiling build"
(when id? (str " " id?))
" to \""
(or output-to output-dir)
"\""))
(try
(let [warnings (volatile! [])
out *out*
warning-fn (fn [warning-type env extra]
(when (get cljs.analyzer/*cljs-warnings* warning-type)
(let [warn {:warning-type warning-type
:env env
:extra extra
:path ana/*cljs-file*}]
(binding [*out* out]
(if (<= (count @warnings) 2)
(log/cljs-syntax-warning warn)
(binding [log/*syntax-error-style* :concise]
(log/cljs-syntax-warning warn))))
(vswap! warnings conj warn))))]
(binding [cljs.analyzer/*cljs-warning-handlers*
(conj (remove #{cljs.analyzer/default-warning-handler}
cljs.analyzer/*cljs-warning-handlers*)
warning-fn)]
(apply build-fn build-inputs opts args)))
(log/succeed (str "Successfully compiled build"
(when id? (str " " id?))
" to \""
(or output-to output-dir)
"\" in " (time-elapsed started-at) "."))
(catch Throwable e
(log/failure (str
"Failed to compile build" (when id? (str " " id?))
" in " (time-elapsed started-at) "."))
(log/syntax-exception e)
(throw e))))))
(declare resolve-fn-var)
(defn run-hooks [hooks & args]
(when (not-empty hooks)
(doseq [h hooks]
(apply h args))))
(defn- wrap-with-build-hooks [build-fn]
(fn [& args]
(run-hooks (::pre-build-hooks *config*) *config*)
(apply build-fn args)
(run-hooks (::post-build-hooks *config*) *config*)))
(defn wrap-with-compiler-passes [build-fn]
(fn [& args]
(if (::passes *config*)
(binding [ana/*passes* (into ana-compat/default-passes (::passes *config*))
fw-util/*compile-collector* (atom {})]
(apply build-fn args))
(apply build-fn args))))
(def build-cljs
(-> bapi/build
wrap-with-build-logging
wrap-with-bundling
wrap-with-build-hooks
wrap-with-compiler-passes))
(def fig-core-build
(-> figwheel.core/build
wrap-with-build-logging
wrap-with-bundling
wrap-with-build-hooks
wrap-with-compiler-passes))
;; TODO the word config is soo abused in this namespace that it's hard to
;; know what and argument is supposed to be
(defn config->reload-config [config]
(select-keys config [:reload-clj-files :wait-time-ms :hawk-options :bundle-once :bundle-freq]))
(defn watch-build [id paths inputs opts cenv & [reload-config]]
(when-let [inputs (not-empty (if (coll? inputs) inputs [inputs]))]
(let [build-inputs (if (coll? inputs) (apply bapi/inputs inputs) inputs)
;; watch is always called after in initial build
opts (bundle-once-opts reload-config opts)
;; the build-fn needs to be passed in before here?
build-fn (if (some #{'figwheel.core} (:preloads opts))
#(fig-core-build id build-inputs opts cenv %)
(fn [files] (build-cljs id build-inputs opts cenv)))]
(log/info "Watching paths:" (pr-str paths) "to compile build -" id)
(log/debug "Build Inputs:" (pr-str inputs))
(binding [fww/*hawk-options* (:hawk-options reload-config nil)]
(fww/add-watch!
[::autobuild id]
(merge
{::watch-info (merge
(:extra-info reload-config)
{:id id
:paths paths
:inputs inputs
:options opts
:compiler-env cenv
:reload-config reload-config})}
{:paths paths
:filter (fww/suffix-filter #{"cljc" "cljs" "js" "clj"})
:handler (fww/throttle
(:wait-time-ms reload-config 50)
(bound-fn [evts]
(binding [cljs.env/*compiler* cenv]
(let [files (mapv (comp #(.getCanonicalPath %) :file) evts)]
(try
(when-let [clj-files
(->> evts
(filter
(partial
(fww/suffix-filter
(set
(cond
(coll? (:reload-clj-files reload-config))
(mapv name (:reload-clj-files reload-config))
(false? (:reload-clj-files reload-config)) []
:else ["clj" "cljc"]))) nil))
(mapv (comp #(.getCanonicalPath %) :file))
not-empty)]
(log/debug "Reloading clj files: " (pr-str (map str clj-files)))
(try
(figwheel.core/reload-clj-files clj-files)
(catch Throwable t
(if (-> t ex-data :figwheel.core/internal)
(do
(log/error (.getMessage t) t)
(log/debug (with-out-str (clojure.pprint/pprint (Throwable->map t)))))
(do
(log/syntax-exception t)
(figwheel.core/notify-on-exception cenv t {})))
;; skip cljs reloading in this case
(throw t))))
(log/debug "Detected changed cljs files: " (pr-str (map str files)))
(build-fn files)
(catch Throwable t
(log/error t)
(log/debug (with-out-str (clojure.pprint/pprint (Throwable->map t))))
false))))))}))))))
(declare read-edn-file)
(defn get-edn-file-key
([edn-file key] (get-edn-file-key edn-file key nil))
([edn-file key default]
(try (get (read-string (slurp edn-file)) key default)
(catch Throwable t default))))
(def validate-config!*
(when (try
(require 'clojure.spec.alpha)
(require 'expound.alpha)
(require 'expound.ansi)
(require 'figwheel.main.schema.config)
(require 'figwheel.main.schema.cljs-options)
(require 'figwheel.main.schema.cli)
true
(catch Throwable t false))
(resolve 'figwheel.main.schema.core/validate-config!)))
(defn validate-config! [spec edn fail-msg & [succ-msg]]
(when (and validate-config!*
(not
(false?
(:validate-config
edn
(get-edn-file-key "figwheel-main.edn" :validate-config)))))
(binding [expound.ansi/*enable-color* (:ansi-color-output edn true)]
(validate-config!* spec edn fail-msg))
(when succ-msg
(log/succeed succ-msg))))
(def validate-cli!*
(when validate-config!*
(resolve 'figwheel.main.schema.cli/validate-cli!)))
(defn validate-cli! [cli-args & [succ-msg]]
(when (and validate-cli!*
(get-edn-file-key "figwheel-main.edn" :validate-cli true))
(binding [expound.ansi/*enable-color*
(get-edn-file-key "figwheel-main.edn" :ansi-color-output true)]
(validate-cli!* cli-args "Error in command line args"))
(when succ-msg
(log/succeed succ-msg))))
;; ----------------------------------------------------------------------------
;; Additional cli options
;; ----------------------------------------------------------------------------
;; Help
(def help-template
"Usage: clojure -m figwheel.main [init-opt*] [main-opt] [arg*]
Common usage:
clj -m figwheel.main -b dev -r
Which is equivalient to:
clj -m figwheel.main -co dev.cljs.edn -c example.core -r
In the above example, dev.cljs.edn is a file in the current directory
that holds a build configuration which is a Map of ClojureScript
compile options. In the above command example.core is ClojureScript
namespace on your classpath that you want to compile.
A minimal dev.cljs.edn will look similar to:
{:main example.core}
The above command will start a watch process that will compile your
source files when one of them changes, it will also facilitate
communication between this watch process and your JavaScript
environment (normally a browser window) so that it can hot reload
changed code into the environment. After the initial compile, it
will then launch a browser to host your compiled ClojureScript code,
and finally a CLJS REPL will launch.
Configuration:
In the above example, besides looking for a dev.cljs.edn file,
figwheel.main will also look for a figwheel-main.edn file in the
current directory as well.
A list of all the config options can be found here:
https://github.com/bhauman/figwheel-main/blob/master/doc/figwheel-main-options.md
A list of ClojureScript compile options can be found here:
https://clojurescript.org/reference/compiler-options
You can add build specific figwheel.main configuration in the
*.cljs.edn file by adding metadata to the build config file like
so:
^{:watch-dirs [\"dev\" \"cljs-src\"]}
{:main example.core}
Command Line Options:
With no options or args, figwheel.main runs a ClojureScript REPL
%s
For --main and --repl:
- Enters the cljs.user namespace
- Binds *command-line-args* to a seq of strings containing command line
args that appear after any main option
- Runs all init options in order
- Calls a -main function or runs a repl or script if requested
The init options may be repeated and mixed freely, but must appear before
any main option.
In the case of --compile and --build you may supply --repl or --serve
options afterwards.
Paths may be absolute or relative in the filesystem or relative to
classpath. Classpath-relative paths have prefix of @ or @/")
(defn adjust-option-docs [commands]
(-> commands
(update-in [:groups :cljs.cli/main&compile :pseudos]
dissoc ["-re" "--repl-env"])
(assoc-in [:init ["-d" "--output-dir"] :doc]
"Set the output directory to use")
(update-in [:init ["-w" "--watch"] :doc] str
". This option can be supplied multiple times.")))
(defn help-str [repl-env]
(format
help-template
(#'cljs.cli/options-str
(adjust-option-docs
(#'cljs.cli/merged-commands repl-env)))))
(defn help-opt
[repl-env _ _]
(println (help-str repl-env)))
;; safer option reading from files which prints out syntax errors
(defn read-edn-file [f]
(try (redn/read
(rtypes/source-logging-push-back-reader (io/reader f) 1 f))
(catch Throwable t
(log/syntax-exception t)
(throw
(ex-info (str "Couldn't read the file:" f)
{::error true} t)))))
(defn read-edn-string [s & [fail-msg]]
(try
(redn/read
(rtypes/source-logging-push-back-reader (io/reader (.getBytes s)) 1))
(catch Throwable t
(let [except-data (fig-ex/add-excerpt (fig-ex/parse-exception t) s)]
(log/info (ansip/format-str (log/format-ex except-data)))
(throw (ex-info (str (or fail-msg "Failed to read EDN string: ")
(.getMessage t))
{::error true}
t))))))
(defn read-edn-opts [str]
(letfn [(read-rsrc [rsrc-str orig-str]
(if-let [rsrc (io/resource rsrc-str)]
(read-edn-string (slurp rsrc))
(cljs.cli/missing-resource orig-str)))]
(cond
(string/starts-with? str "@/") (read-rsrc (subs str 2) str)
(string/starts-with? str "@") (read-rsrc (subs str 1) str)
:else
(let [f (io/file str)]
(if (.isFile f)
(read-edn-file f)
(cljs.cli/missing-file str))))))
(defn merge-meta [m m1] (with-meta (merge m m1) (merge (meta m) (meta m1))))
(defn load-edn-opts [str]
(reduce merge-meta {} (map read-edn-opts (cljs.util/split-paths str))))
(defn fallback-id [edn]
(let [m (meta edn)]
(cond
(and (:id m) (not (string/blank? (str (:id m)))))
(:id m)
;;(:main edn) (munge (str (:main edn)))
:else
(str "build-"
(.getValue (doto (java.util.zip.CRC32.)
(.update (.getBytes (pr-str (into (sorted-map) edn))))))))))
(defn compile-opts-opt
[cfg copts]
(let [copts (string/trim copts)
edn (if (or (string/starts-with? copts "{")
(string/starts-with? copts "^"))
(read-edn-string copts "Error reading EDN from command line flag: -co ")
(load-edn-opts copts))
config (meta edn)
id
(and edn
(if (or (string/starts-with? copts "{")
(string/starts-with? copts "^"))
(and (map? edn) (fallback-id edn))
(->>
(cljs.util/split-paths copts)
(filter (complement string/blank?))
(filter #(not (.startsWith % "@")))
(map io/file)
(map (comp first #(string/split % #"\.") #(.getName %)))
(string/join ""))))]
(log/debug "Validating options passed to --compile-opts")
(validate-config!
:figwheel.main.schema.cljs-options/cljs-options
edn
(str "Configuration error in options passed to --compile-opts"))
(cond-> cfg
edn (update :options merge edn)
id (update-in [::build :id] #(if-not % id %))
config (update-in [::build :config] merge config))))
(defn repl-env-opts-opt
[cfg ropts]
(let [ropts (string/trim ropts)
edn (if (string/starts-with? ropts "{")
(read-edn-string ropts "Error reading EDN from command line flag: --repl-opts ")
(load-edn-opts ropts))]
(update cfg :repl-env-options merge edn)))
(defn figwheel-opts-opt
[cfg ropts]
(let [ropts (string/trim ropts)
edn (if (string/starts-with? ropts "{")
(read-edn-string ropts "Error reading EDN from command line flag: -fw-opts ")
(load-edn-opts ropts))]
(validate-config!
:figwheel.main.schema.config/edn
edn "Error validating figwheel options EDN provided to -fwo CLI flag")
(update cfg ::config merge edn)))
(defn print-config-opt [cfg opt]
(assoc-in cfg [::config :pprint-config] (not= "false" opt)))
(defn clean-outputs-opt [cfg opt]
(assoc-in cfg [::config :clean-outputs] (not= "false" opt)))
(defn- watch-opt
[cfg path]
(when-not (.exists (io/file path))
(if (or (string/starts-with? path "-")
(string/blank? path))
(throw
(ex-info
(str "Missing watch path")
{:cljs.main/error :invalid-arg}))
(throw
(ex-info
(str "Watch path \"" path "\" does not exist")
{:cljs.main/error :invalid-arg}))))
(update-in cfg [::extra-config :watch-dirs] (fnil conj []) path))
(defn figwheel-opt [cfg bl]
(assoc-in cfg [::config :figwheel-core] (not= bl "false")))
(defn get-build [bn]
(let [fname (if (.contains bn (System/getProperty "path.separator"))
bn
(str bn ".cljs.edn"))
build (->> (cljs.util/split-paths bn)
(map #(str % ".cljs.edn"))
(string/join (System/getProperty "path.separator"))
load-edn-opts)]
(when build
(when-not (false? (:validate-config (meta build)))
(when (meta build)
(log/debug "Validating metadata in build: " fname)
(validate-config!
:figwheel.main.schema.config/edn
(meta build)
(str "Configuration error in build options meta data: " fname)))
(log/debug "Validating CLJS compile options for build:" fname)
(validate-config!
:figwheel.main.schema.cljs-options/cljs-options
build
(str "Configuration error in CLJS compile options: " fname))))
build))
(defn watch-dir-from-ns [main-ns]
(let [source (fw-util/ns->location main-ns)]
(when-let [f (:uri source)]
(when (= "file" (.getScheme (.toURI f)))
(let [res (fw-util/relativized-path-parts (.getPath f))
end-parts (fw-util/path-parts (:relative-path source))]
(when (= end-parts (take-last (count end-parts) res))
(str (apply io/file (drop-last (count end-parts) res)))))))))
(def default-main-repl-index-body
(str
"<p>Welcome to the Figwheel REPL page.</p>"
"<p>This page is served when you launch <code>figwheel.main</code> without any command line arguments.</p>"
"<p>This page is currently hosting your REPL and application evaluation environment. "
"Validate the connection by typing <code>(js/alert \"Hello Figwheel!\")</code> in the REPL.</p>"))
(defn get-build-with-error [bn]
(when-not (.exists (io/file (str bn ".cljs.edn")))
(if (or (string/starts-with? bn "-")
(string/blank? bn))
(throw
(ex-info
(str "Missing build name")
{:cljs.main/error :invalid-arg}))
(throw
(ex-info
(str "Build " (str bn ".cljs.edn") " does not exist")
{:cljs.main/error :invalid-arg}))))
(get-build bn))
(defn build-opt [cfg bn]
(let [bns (string/split bn #":")
id (string/join "" bns)
options (->> bns
(map get-build-with-error)
(reduce merge-meta))]
(-> cfg
(update :options merge options)
(assoc ::build (cond-> {:id id}
(meta options)
(assoc :config (meta options)))))))
(defn build-once-opt [cfg bn]
(let [cfg (build-opt cfg bn)]
(assoc-in cfg [::config ::build-once] true)))
(defn background-build-opt [cfg bn]
(let [{:keys [options ::build]} (build-opt {} bn)]
(update cfg ::background-builds
(fnil conj [])
(assoc build :options options))))
;; TODO move these down to main action section
(declare default-compile)
(defn build-main-opt [repl-env-fn [_ build-name & args] cfg]
;; serve if no other args
(let [args (if-not (#{"-s" "-r" "--repl" "--serve"} (first args))
(cons "-s" args)
args)]
(default-compile repl-env-fn
(merge (build-opt cfg build-name)
{:args args
::build-main-opt true}))))
(defn build-once-main-opt [repl-env-fn [_ build-name & args] cfg]
(default-compile repl-env-fn
(merge (build-once-opt cfg build-name)
{:args args})))
(declare default-output-dir default-output-to)
(defn make-temp-dir []
(let [tempf (java.io.File/createTempFile "figwheel" "repl")]
(.delete tempf)
(.mkdirs tempf)
(.deleteOnExit (io/file tempf))
(fw-util/add-classpath! (.toURL tempf))
tempf))
(defn add-temp-dir [cfg]
(let [temp-dir (make-temp-dir)
config-with-target (assoc-in cfg [::config :target-dir] temp-dir)
output-dir (default-output-dir config-with-target)
output-to (default-output-to config-with-target)]
(-> cfg
(assoc-in [:options :output-dir] output-dir)
(assoc-in [:options :output-to] output-to)
(assoc-in [:options :asset-path]
(str "/cljs-out"
(when-let [id (-> cfg ::build :id)]
(str "/" id)))))))
(defn pwd-likely-project-root-dir? []
(or (some #(.isFile (clojure.java.io/file %))
["project.clj" "deps.edn" "figwheel-main.edn"])
(->> (seq (.listFiles (clojure.java.io/file ".")))
(map #(.getName %))
(some #(.endsWith % ".cljs.edn")))))
(defn should-add-temp-dir? [cfg]
(not (pwd-likely-project-root-dir?)))
(defn helper-ring-app [handler html-body output-to & [force-index?]]
(figwheel.server.ring/default-index-html
handler
(figwheel.server.ring/index-html (cond-> {}
html-body (assoc :body html-body)
output-to (assoc :output-to output-to)))
force-index?))
(defn repl-main-opt [repl-env-fn args cfg]
(let [cfg (if (should-add-temp-dir? cfg)
(add-temp-dir cfg)
cfg)
cfg (if (get-in cfg [::build :id])
cfg
(assoc-in cfg [::build :id] "figwheel-default-repl-build"))
output-to (get-in cfg [:options :output-to]
(default-output-to cfg))]
(default-compile
repl-env-fn
(-> cfg
(assoc :args args)
(update :options (fn [opt] (merge {:main 'figwheel.repl.preload} opt)))
(assoc-in [:options :aot-cache] true)
(assoc-in [::config
:ring-stack-options
:figwheel.server.ring/dev
:figwheel.server.ring/system-app-handler]
#(helper/middleware
%
{:header "REPL Host page"
:body (slurp (io/resource "public/com/bhauman/figwheel/helper/content/repl_welcome.html"))
:output-to output-to}))
(assoc-in [::config :mode] :repl)))))
(declare serve update-config)
(defn print-conf [cfg]
(println "---------------------- Figwheel options ----------------------")
(pprint (::config cfg))
(println "---------------------- Compiler options ----------------------")
(pprint (:options cfg)))
(defn serve-main-opt [repl-env-fn args b-cfg]
(let [{:keys [repl-env-options repl-options options] :as cfg}
(-> b-cfg
(assoc :args args)
update-config)
repl-env-options
(update-in
repl-env-options
[:ring-stack-options
:figwheel.server.ring/dev
:figwheel.server.ring/system-app-handler]
(fn [sah]
(if sah
sah
#(helper/serve-only-middleware % {}))))
{:keys [pprint-config]} (::config cfg)
repl-env (apply repl-env-fn (mapcat identity repl-env-options))]
(log/trace "Verbose config:" (with-out-str (pprint cfg)))
(if pprint-config
(do
(log/info ":pprint-config true - printing config:")
(print-conf cfg))
(serve {:repl-env repl-env
:repl-options repl-options
:join? true}))))
(def figwheel-commands
{:init {["-w" "--watch"]
{:group :cljs.cli/compile :fn watch-opt
:arg "path"
:doc "Continuously build, only effective with the --compile and --build main options"}
["-fwo" "--fw-opts"]
{:group :cljs.cli/compile :fn figwheel-opts-opt
:arg "edn"
:doc (str "Options to configure figwheel.main, can be an EDN string or "
"system-dependent path-separated list of EDN files / classpath resources. Options "
"will be merged left to right.")}
["-ro" "--repl-opts"]
{:group ::main&compile :fn repl-env-opts-opt
:arg "edn"
:doc (str "Options to configure the repl-env, can be an EDN string or "
"system-dependent path-separated list of EDN files / classpath resources. Options "
"will be merged left to right.")}
["-co" "--compile-opts"]
{:group :cljs.cli/main&compile :fn compile-opts-opt
:arg "edn"
:doc (str "Options to configure the build, can be an EDN string or "
"system-dependent path-separated list of EDN files / classpath resources. Options "
"will be merged left to right. Any meta data will be merged with the figwheel-options.")}
;; TODO uncertain about this
["-fw" "--figwheel"]
{:group :cljs.cli/compile :fn figwheel-opt
:arg "bool"
:doc (str "Use Figwheel to auto reload and report compile info. "
"Only takes effect when watching is happening and the "
"optimizations level is :none or nil."
"Defaults to true.")}
["-bb" "--background-build"]
{:group :cljs.cli/compile :fn background-build-opt
:arg "str"
:doc "The name of a build config to watch and build in the background."}
["-pc" "--print-config"]
{:group :cljs.cli/main&compile :fn print-config-opt
:doc "Instead of running the command print out the configuration built up by the command. Useful for debugging."}
["--clean"]
{:group :cljs.cli/main&compile :fn clean-outputs-opt
:doc (str "Delete the compile artifacts for this build before compiling. "
"Deletes :output-dir, :output-to, :final-output-to and any extra-main files."
"This option can be supplied by itself to clean all builds."
"Or you can supply a single build name to clean only that build.")}}
:main {["-b" "--build"]
{:fn build-main-opt
:arg "string"
:doc (str "Run a compile process. The supplied build name or a list of build names "
"(seperated by \":\") refer to "
"EDN files of compile options "
"IE. If you use \"dev\" as a build name it will indicate "
"that a \"dev.cljs.edn\" will be read for "
"compile options. "
"Multiple build names will merged left to right along with their metadata. "
"The --build option will make an "
"extra attempt to "
"initialize a figwheel live reloading workflow. "
"May be followed buy either --repl or --serve. "
"If --repl follows, "
"will launch a REPL (along with a server) after the compile completes. "
"If --serve follows, will only start a web server according to "
"current configuration after the compile "
"completes.")}
["-bo" "--build-once"]
{:fn build-once-main-opt
:arg "string"
:doc (str "Compile for the build name one time. "
"Looks for build EDN files just like the --build command. "
"This will not inject Figwheel or REPL functionality into your build. "
"It will still inject devtools if you are using :optimizations :none. "
"If --serve follows, will start a web server according to "
"current configuration after the compile "
"completes.")}
["-r" "--repl"]
{:fn repl-main-opt
:doc "Run a REPL"}
["-s" "--serve"]
{:fn serve-main-opt
:arg "host:port"
:doc "Run a server based on the figwheel-main configuration options."}
["-h" "--help" "-?"]
{:fn help-opt
:doc "Print this help message and exit"}}})
;; ----------------------------------------------------------------------------
;; Config
;; ----------------------------------------------------------------------------
(defn browser-target? [target]
(or (nil? target)
(= :bundle target)))
(defn default-output-dir* [target & [scope]]
(->> (cond-> [(or target default-target-dir) "public" "cljs-out"]
scope (conj scope))
(apply io/file)
(.getPath)))
(defn config-auto-bundle [{:keys [options ::config] :as cfg}]
;; we only support webpack right now
(if (:auto-bundle config)
(cond-> cfg
true (assoc-in [:options :target] :bundle)
(= :webpack (:auto-bundle config))
(update-in [:options :bundle-cmd]
#(merge
{:none [:npx-cmd "webpack" "--mode=development" "--entry" :output-to
"--output-path" :final-output-dir
"--output-filename" :final-output-filename]
:default [:npx-cmd "webpack" "--mode=production" "--entry" :output-to
"--output-path" :final-output-dir
"--output-filename" :final-output-filename]}
%))
(= :parcel (:auto-bundle config))
(update-in [:options :bundle-cmd]
#(merge
{:none [:npx-cmd "parcel" "build" :output-to
"--out-dir" :final-output-dir
"--out-file" :final-output-filename
"--no-minify"]
:default [:npx-cmd "parcel" "build" :output-to
"--out-dir" :final-output-dir
"--out-file" :final-output-filename]}
%))
(#{:advanced :simple :whitespace} (:optimizations options))
(assoc-in [:options :closure-defines 'cljs.core/*global*] "window"))
cfg))
(defmulti default-output-dir (fn [{:keys [options]}]
(get options :target :browser)))
(defmethod default-output-dir :default [{:keys [::config ::build]}]
(default-output-dir* (:target-dir config) (:id build)))
(defmethod default-output-dir :nodejs [{:keys [::config ::build]}]
(let [target (:target-dir config default-target-dir)
scope (:id build)]
(->> (cond-> [target "node"]
scope (conj scope))
(apply io/file)
(.getPath))))
(defn default-output-to* [target & [scope]]
(.getPath (io/file (or target default-target-dir) "public" "cljs-out"
(cond->> "main.js"
scope (str scope "-")))))
(defn default-bundle-output-to* [target & [scope]]
(->> (cond-> [(or target default-target-dir) "public" "cljs-out"]
scope (conj scope)
true (conj "main.js"))
(apply io/file)
(.getPath)))
(defmulti default-output-to (fn [{:keys [options]}]
(get options :target :browser)))
(defmethod default-output-to :default [{:keys [options ::config ::build]}]
(if-let [out-dir (:output-dir options)]
(.getPath (io/file out-dir "main.js"))
(default-output-to* (:target-dir config) (:id build))))
(defmethod default-output-to :bundle [{:keys [options ::config ::build]}]
(if-let [out-dir (:output-dir options)]
(.getPath (io/file out-dir "main.js"))
(default-bundle-output-to* (:target-dir config) (:id build))))
(defmethod default-output-to :nodejs [{:keys [::build] :as cfg}]
(let [scope (:id build)]
(.getPath (io/file (default-output-dir cfg)
(cond->> "main.js"
scope (str scope "-"))))))
(defn extra-config-merge [a' b']
(merge-with (fn [a b]
(cond
(and (map? a) (map? b)) (merge a b)
(and (sequential? a)
(sequential? b))
(distinct (concat a b))
(nil? b) a
:else b))
a' b'))
(defn resolve-fn-var [prefix handler]
(if (or (nil? handler) (var? handler))
handler
(let [prefix (when prefix (str prefix ": "))]
(when (and handler (nil? (namespace (symbol handler))))
(throw
(ex-info
(format "%sThe var '%s has the wrong form it must be a namespaced symbol" prefix
(pr-str handler))
{::error true :handler handler})))
(let [handler-res (fw-util/require-resolve-handler-or-error handler)]
(when (and handler (not handler-res))
(throw (ex-info
(format "%sWas able to load namespace '%s but unable to resolve the specific var: '%s"
prefix
(namespace (symbol handler))
(str handler))
{::error true
:handler handler})))
(when (map? handler-res)
(letfn [(error [s]
(throw (ex-info s {::error true :handler handler})))]
(condp = (:stage handler-res)
:bad-namespaced-symbol
(do (log/syntax-exception (:exception handler-res))
(error (format "%sThere was an error while trying to resolve '%s"
prefix
(pr-str handler))))
:unable-to-resolve-handler-fn
(error (format "%sWas able to load namespace '%s but unable to resolve the specific var: '%s"
prefix
(namespace (symbol handler))
(str handler)))
:unable-to-load-handler-namespace
(do
(log/syntax-exception (:exception handler-res))
(error (format "%sThere was an exception while requiring the namespace '%s while trying to load the var '%s"
prefix
(namespace (symbol handler))
(str handler)))))))
handler-res))))
(defn resolve-ring-handler [ring-handler]
(resolve-fn-var "ring-handler" ring-handler))
(defn process-main-config [{:keys [ring-handler] :as main-config}]
(let [handler (resolve-ring-handler ring-handler)]
(cond-> main-config
handler (assoc :ring-handler handler))))
(defn process-figwheel-main-edn [main-edn]
(when main-edn
(when-not (false? (:validate-config main-edn))
(log/info "Validating figwheel-main.edn")
(validate-config!
:figwheel.main.schema.config/edn