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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.cli :as cli]
[cljs.env]
[cljs.main :as cm]
[cljs.repl]
[cljs.repl.figwheel]
[cljs.util]
[clojure.java.io :as io]
[clojure.pprint :refer [pprint]]
[clojure.string :as string]
[clojure.edn :as edn]
[clojure.tools.reader.edn :as redn]
[clojure.tools.reader.reader-types :as rtypes]
[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.repl :as fw-repl]
[figwheel.tools.exceptions :as fig-ex]))
#?(: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- wrap-with-build-logging [build-fn]
(fn [id? & args]
(let [started-at (System/currentTimeMillis)
{:keys [output-to output-dir]} (second args)]
;; 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 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))))))
(def build-cljs (wrap-with-build-logging bapi/build))
(def fig-core-build (wrap-with-build-logging figwheel.core/build))
(defn watch-build [id inputs opts cenv & [reload-config]]
(when-let [inputs (if (coll? inputs) inputs [inputs])]
(let [build-inputs (if (coll? inputs) (apply bapi/inputs inputs) inputs)
;; 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 and compiling paths:" (pr-str inputs) "for build -" id)
(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 inputs
:options opts
:compiler-env cenv
:reload-config reload-config})}
{:paths inputs
: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
(log/syntax-exception t)
(figwheel.core/notify-on-exception cenv t {})
(throw t))))
(log/debug "Detected changed cljs files: " (pr-str (map str files)))
(build-fn files)
(catch Throwable t
(log/error 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)))))
(expound.ansi/with-color-when (: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))
(expound.ansi/with-color-when
(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- 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 should-add-temp-dir? [cfg]
(let [target-on-classpath?
(when-let [target-dir (get-edn-file-key
"figwheel-main.edn"
:target-dir
default-target-dir)]
(fw-util/dir-on-classpath? target-dir))]
(and (nil? (:target (:options cfg)))
(not target-on-classpath?))))
(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."}
}
: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 --server. "
"If --repl follows, "
"will launch a REPL (along with a server) after the compile completes. "
"If --server 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 --server 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 default-output-dir* [target & [scope]]
(->> (cond-> [(or target default-target-dir) "public" "cljs-out"]
scope (conj scope))
(apply io/file)
(.getPath)))
(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 "-")))))
(defmulti default-output-to (fn [{:keys [options]}]
(get options :target :browser)))
(defmethod default-output-to :default [{:keys [::config ::build]}]
(default-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-ring-handler [ring-handler]
(let [handler (fw-util/require-resolve-handler-or-error ring-handler)]
(when (and ring-handler (not handler))
(throw (ex-info (str "Was able to load :ring-handler but unable to resolve the specific var: "
(pr-str ring-handler))
{::error true
:ring-handler ring-handler})))
(if (map? handler)
(condp = (:stage handler)
:bad-namespaced-symbol
(throw
(ex-info (str ":ring-handler has the wrong form it must be a namespaced symbol "
(pr-str ring-handler))
{::error true
:ring-handler ring-handler} (:exception handler)))
:unable-to-resolve-handler-fn
(throw
(ex-info (str "Was able to load :ring-handler but unable to resolve the specific var: "
(pr-str ring-handler))
{::error true
:ring-handler ring-handler}
(:exception handler)))
:unable-to-load-handler-namespace
(do (log/syntax-exception (:exception handler))
(throw (ex-info "There was an exception while loading the :ring-handler" {::error true}))))
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
main-edn "Configuration error in figwheel-main.edn"
"figwheel-main.edn is valid!"))
(process-main-config main-edn)))
;; use tools reader read-string for better error messages
#_(redn/read-string)
(defn fetch-figwheel-main-edn [cfg]
(when (.isFile (io/file "figwheel-main.edn"))
(read-edn-file "figwheel-main.edn")))
(defn- config-figwheel-main-edn [cfg]
(let [config-edn (process-figwheel-main-edn
(or (::start-figwheel-options cfg)
(fetch-figwheel-main-edn cfg)))]
(cond-> cfg
config-edn (update ::config #(merge config-edn %)))))
(defn- config-merge-current-build-conf [{:keys [::extra-config ::build] :as cfg}]
(update cfg
::config #(extra-config-merge
(merge-with (fn [a b] (if b b a)) %
(process-main-config (:config build)))
extra-config)))
(defn host-port-arg? [arg]
(and arg (re-matches #"(.*):(\d*)" arg)))
(defn update-server-host-port [config [f address-port & args]]
(if (and (#{"-s" "--serve"} f) address-port)
(let [[_ host port] (host-port-arg? address-port)]
(cond-> config
(not (string/blank? host)) (assoc-in [:ring-server-options :host] host)
(not (string/blank? port)) (assoc-in [:ring-server-options :port] (Integer/parseInt port))))
config))
;; targets options
(defn- config-main-ns [{:keys [ns options] :as cfg}]
(let [main-ns (if (and ns (not (#{"-r" "--repl" "-s" "--serve"} ns)))
(symbol ns)
(:main options))]
(cond-> cfg
main-ns (assoc :ns main-ns) ;; TODO not needed?
main-ns (assoc-in [:options :main] main-ns))))
(defn warn-that-dir-not-on-classpath [typ dir]
(let [[n k] (condp = typ
:source ["Source directory" :source-paths]
:target ["Target directory" :resource-paths])]
(log/warn (ansip/format-str
[:yellow n " "
(pr-str (str dir))
" is not on the classpath"]))
(log/warn "Please fix this by adding" (pr-str (str dir))
"to your classpath\n"
"I.E.\n"
"For Clojure CLI Tools in your deps.edn file:\n"
" ensure" (pr-str (str dir))
"is in your :paths key\n\n"
(when k
(format
(str "For Leiningen in your project.clj:\n"
" add it to the %s key\n")
(pr-str k))))))
;; takes a string or file representation of a directory
(defn- add-classpath! [dir]
(when-not (fw-util/dir-on-classpath? dir)
(log/warn (ansip/format-str [:yellow
(format "Attempting to dynamically add %s to classpath!"
(pr-str (str dir)))]))
(fw-util/add-classpath! (.toURL (io/file dir)))))
(defn- config-main-source-path-on-classpath [{:keys [options] :as cfg}]
(when-let [main (:ns cfg)]
(when-not (fw-util/safe-ns->location main)
(when-let [src-dir (fw-util/find-source-dir-for-cljs-ns main)]
(when-not (fw-util/dir-on-classpath? src-dir)
(if (get-in cfg [::config :helpful-classpaths] true)
(do
(add-classpath! src-dir)
(warn-that-dir-not-on-classpath :source src-dir))
(log/warn (ansip/format-str
[:yellow
"The source directory for the main ns "
(pr-str (str src-dir))
" is not the classpath!"])))))))
cfg)
;; targets local config
(defn- config-repl-serve? [{:keys [ns args] :as cfg}]
(let [rfs #{"-r" "--repl"}
sfs #{"-s" "--serve"}]
(cond-> cfg
(boolean (or (rfs ns) (rfs (first args))))
(assoc-in [::config :mode] :repl)
(boolean (or (sfs ns) (sfs (first args))))
(->
(assoc-in [::config :mode] :serve)
(update ::config update-server-host-port args))
(rfs (first args))
(update :args rest)
(sfs (first args))
(update :args rest)
(and (sfs (first args)) (host-port-arg? (second args)))
(update :args rest))))
;; targets local config
(defn- config-update-watch-dirs [{:keys [options ::config] :as cfg}]
;; remember we have to fix this for the repl-opt fn as well
;; so that it understands multiple watch directories
(update-in cfg [::config :watch-dirs]
#(not-empty
(distinct
(let [ns-watch-dir (and
(#{:repl :serve} (:mode config))
(not (::build-once config))
(not (:watch options))
(empty? %)
(:main options)
(watch-dir-from-ns (:main options)))]
(cond-> %
(:watch options) (conj (:watch options))
ns-watch-dir (conj ns-watch-dir)))))))
(defn- config-ensure-watch-dirs-on-classpath [{:keys [::config] :as cfg}]
(doseq [src-dir (:watch-dirs config)]
(when-not (fw-util/dir-on-current-classpath? src-dir)
(log/warn (ansip/format-str
[:yellow
"The watch directory "
(pr-str (str src-dir))
" is not the classpath! A watch directory is must "
"on the classpath and point to the root directory of your namespace "
"source tree. A general all encompassing watch directory will not work."]))
(when (get config :helpful-classpaths true)
(add-classpath! src-dir)
(warn-that-dir-not-on-classpath :source src-dir)))) cfg)
;; needs local config
(defn figwheel-mode? [{:keys [::config options]}]
(and (:figwheel-core config true)
(and (#{:repl :serve} (:mode config))
(not (::build-once config))
(not-empty (:watch-dirs config)))
(= :none (:optimizations options :none))))
(defn repl-connection? [{:keys [::config options] :as cfg}]
(or (and (#{:repl :serve} (:mode config))
(not (::build-once config))
(= :none (:optimizations options :none)))
(figwheel-mode? cfg)))
;; TODO this is a no-op right now
(defn prep-client-config [config]
(let [cl-config (select-keys config [])]
cl-config))
;; targets options needs local config
(defn- config-figwheel-mode? [{:keys [::config options] :as cfg}]
(cond-> cfg
;; check for a main??
(figwheel-mode? cfg)
(->
(update ::initializers (fnil conj []) #(figwheel.core/start*))
(update-in [:options :preloads]
(fn [p]
(vec (distinct
(concat p '[figwheel.core figwheel.main]))))))
(false? (:heads-up-display config))
(update-in [:options :closure-defines] assoc 'figwheel.core/heads-up-display false)
(true? (:load-warninged-code config))
(update-in [:options :closure-defines] assoc 'figwheel.core/load-warninged-code true)))
(defn- modules-output-to [{:keys [options ::config ::build] :as cfg}]
(if (not-empty (:modules options))
(update-in
cfg [:options :modules]
#(->> %
(map (fn [[k v]]
(if-not (:output-to v)
[k (assoc v :output-to
(string/replace
(default-output-to cfg)
"main.js" ;; brittle
(str (name k) ".js")))]
[k v])))
(into {})))
cfg))
;; targets options
;; TODO needs to consider case where one or the other is specified???
(defn- config-default-dirs [{:keys [options ::config ::build] :as cfg}]
(cond-> cfg
(and (nil? (:output-to options)) (not (:modules options)))
(assoc-in [:options :output-to] (default-output-to cfg))
(:modules options)
modules-output-to
(nil? (:output-dir options))
(assoc-in [:options :output-dir] (default-output-dir cfg))))
(defn figure-default-asset-path [{:keys [figwheel-options options ::config ::build] :as cfg}]
(if (= :nodejs (:target options))
(:output-dir options)
(let [{:keys [output-dir]} options]
;; TODO could discover the resource root if there is only one
;; or if ONLY static file serving can probably do something with that
;; as well
;; UNTIL THEN if you have configured your static resources no default asset-path
(when-not (contains? (:ring-stack-options figwheel-options) :static)
(let [parts (fw-util/relativized-path-parts (or output-dir
(default-output-dir cfg)))]
(when-let [asset-path
(->> parts
(split-with (complement #{"public"}))
last
rest
not-empty)]
(str "/" (string/join "/" asset-path))))))))
;; targets options
(defn- config-default-asset-path [{:keys [options] :as cfg}]
(cond-> cfg
(nil? (:asset-path options))
(assoc-in [:options :asset-path] (figure-default-asset-path cfg))))