shadow-cljs.edn Does not work

[tjscollins]

Trying to run $ shadow-cljs --once fails if shadow-cljs.edn exists. Even if using the default config from node_modules/shadow-cljs/bin/default-config.edn, the same error is produced:

$ shadow-cljs --once
shadow-cljs - using package.json 1.0.20170601
shadow-cljs - loading dependencies
shadow-cljs - starting
Exception in thread "main" clojure.lang.ExceptionInfo: invalid config {:clojure.spec.alpha/problems [{:path [], :pred clojure.core/vector?, :val {:source-paths ["src"], :dependencies [], :builds {}}, :via [:shadow.cljs.devtools.config/config], :in []}], :clojure.spec.alpha/spec :shadow.cljs.devtools.config/config, :clojure.spec.alpha/value {:source-paths ["src"], :dependencies [], :builds {}}}
	at clojure.core$ex_info.invokeStatic(core.clj:4725)
	at clojure.core$ex_info.invoke(core.clj:4725)
	at shadow.cljs.devtools.config$load_cljs_edn_BANG_.invokeStatic(config.clj:41)
	at shadow.cljs.devtools.config$load_cljs_edn_BANG_.invoke(config.clj:37)
	at shadow.cljs.devtools.config$get_build.invokeStatic(config.clj:47)
	at shadow.cljs.devtools.config$get_build.invoke(config.clj:45)
	at shadow.cljs.devtools.cli$load_npm_config.invokeStatic(cli.clj:69)
	at shadow.cljs.devtools.cli$load_npm_config.invoke(cli.clj:64)
	at shadow.cljs.devtools.cli$main.invokeStatic(cli.clj:124)
	at shadow.cljs.devtools.cli$main.doInvoke(cli.clj:100)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.lang.Var.applyTo(Var.java:702)
	at clojure.core$apply.invokeStatic(core.clj:657)
	at clojure.core$apply.invoke(core.clj:652)
	at shadow.cljs.cli$_main.invokeStatic(cli.clj:77)
	at shadow.cljs.cli$_main.doInvoke(cli.clj:34)
	at clojure.lang.RestFn.applyTo(RestFn.java:139)
	at shadow.cljs.cli.main(Unknown Source)

The spec seems to be expecting a vector and not a map from shadow-cljs.edn. I'm assuming this is not the intended behavior.

[tiye]

please paste you config, and which version of shadow-cljs do you use?

There was a breaking change, you should notice: https://github.com/thheller/shadow-cljs/blob/master/CHANGELOG.md#1020170602

[BREAKING] a shadow-cljs.edn config file is now mandatory, the script can create on for you. It is now also expected to contain a map and supports :builds, :dependencies, :source-paths and probaly more in the future. If you had a vector before just wrap it in {:builds the-vector}.

Upgrade please.

npm i -g shadow-cljs

[tjscollins]

Upgrading the global install fixed it. I had a local install that was upgraded to 0.9.4, but global was out of date. Thanks.

[tiye]

I always feel confused when clojure.spec throws error messages at me. 😆

[thheller]

spec errors need to improve thats for sure.

I don't like that the local install can have a different version than the global. The global should be able to just launch the local if it exists. How do other JS packages deal with this issue? I see that some packages ship a thing-cli package (ie. ember-cli, vue-cli, ...) in addition to the normal packages.

Technically you only need either the global or the local, but having the local protects the node_modules/shadow-cljs folder from getting deleted by yarn.

Still need to figure out how things are done properly in the JS world. CLJS/JVM is so different.

[tiye]

gulp-cli is such an example, which requires gulp-cli at global meanwhile gulp installed at local. https://stackoverflow.com/a/35573218/883571

I think using commands at local is better because we often have to accept that different projects using different versions of same module. So I don't have to upgrade all my code when upstreams update.

Besides, by maintaining them at local, I can just type yarn outdated to figure out and just yarn upgrade shadow-cljs to update in current repo. It's quite handy.