@deadghost spec instrumentation/enforcement is opt-in at each call site. there’s not currently a way to spec all usages of a keyword in every map

(nor would you probably want to)

IME instrumentation can be a big perf bottleneck. I rarely use it for my entire code base even during development

@deadghost Yeah, as @lilactown says, Spec is entirely opt-in by design and it is also intended more for boundaries than for "everything", so I think what you are asking for is a non-goal for Spec...

You can explicitly ask (s/valid? :foo/bar "1"), you can s/instrument a function with an appropriate Spec and then the call will check that, you can s/check a function and have it check returned values against Specs. That's how it is designed.

Yeah that's reasonable. I don't think specing out the boundaries is too onerous but I'll see when I actually try to do it.

A lot of people make the mistake of treating Spec like some sort of "type system" (which it definitely is not) and trying "spec everything" which is a bad idea.

How do I write the specs for a function with map destructured arguments, e.g.,:

(defn budget-item-type
  [{:transaction/keys [amount]}]
  (if (ma/positive? amount) :expense :income))
(s/fdef budget-item-type
  :args (s/keys* :req-un [::specs/money])
  :ret #{:expense :income})

destructuring really doesn't change how your spec something - from the function perspective you're just receiving a map

In this case here, your args spec is expecting a kwarg style sequence, not a map though. you either want the function to be a varargs (by using &) or to wrap your spec in s/cat.

Thanks @alexmiller!

How can I do when one of the properties of a component is another component

when I try to run clojure on windows, I get the following error:

PS C:<omitted>> clj
java.exe : Downloading: org/clojure/clojure/1.10.1/clojure-1.10.1.pom from central 
 At C:\<omitted>\Documents\WindowsPowerShell\Modules\ClojureTools\ClojureTools.psm1:304 char:5
+     & $JavaCmd -classpath $ToolsCp clojure.main -m clojure.tools.deps ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (Downloading: or...om from central:String) [], RemoteException
    + FullyQualifiedErrorId : NativeCommandError 

How to process collection in parallel for side effects in clojure? EDIT: I got that temptation to use pmap, but i'm not interested what are the values of operation.

https://cljdoc.org/d/metosin/spec-tools/0.10.4/doc/spec-coercion#spec-based-transformations anyone happen to know if this can transform the kw as well? For example, :foo/bar -> :foo-bar

Hi, my clojure backend needs to to call an external script (script.sh) and this works in development using (clojure.java.shell/sh "./script.sh" …) , (with the script located in project root dir), but when I run the production jar file inside my docker container, it is unable to locate the script. I’ve tried with the script next to the jar file, switching to an absolute path (inside the container) and more, but I keep getting Cannot run program "/script.sh": error=2, No such file or directory I’ve verified that the script is actually inside the container and have also compared with another project where I have this working, but can’t seem spot the difference. Help appreciated.

"/script.sh" seems like a clue - that looks like . (current directory) is being set to / in this case?

Sorry, I pasted output from another attempt than what I created in the example.

Doing a new attempt now with an absolute path. I can give an example from there when done

Still the same issue. Error: Cannot run program "/app/script.sh": error=2, No such file or directory When I log “ls” and “pwd” right above the sh-call, I see what I would expect to see: pwd: {:exit 0, :out /app, :err } ls: {:exit 0, :out app.jar log script.sh , :err }

can you ensure the script is executable?

I’ve checked that, and it is

-rwxr-xr-x

I think you need to use just “script.sh”

without ./

Thanks, I’ll try that

I haven’t read the whole discussion before giving advice 😄

have no idea how it’ll work with docker

I would imagine that just the filename without path gives Java some more room to search the class path, so lets see 🙂

what is the proper way to test if a var or local is a dereffable thing? (atom, ref, agent, promise, etc)

still failed

this is a file path, has nothing to do with classpath

(map #(instance? clojure.lang.IDeref %) [1 :a (atom 3)]) @cpmcdaniel

@alexmiller Thanks, for the clarification. I was “afraid” of that when I wrote it 🙂 I did not come to Clojure from Java…

unfortunately, I'm not sure what the issue is - maybe try running bash with the script as an argument? does the script have a shebang at the top?

It might be an issue with the $PATH environment var being different when you run it --maybe some other file is the one that’s missing?

It is actually an Expect script named script.exp and it has a shebang #!/usr/bin/expect -f And I forgot to install Expect in the container. /app # ./script.exp sh: ./script.exp: not found

Not surprising, but adding RUN apk add expect to my Dockerfile solved the issue. Sorry about all the confusion. I believe my attempt at isolation the problem and removing irrelevant details was not actually helpful.

no worries ;)

Thanks for all the suggestions and getting me on the right track

(Removed my question to ask in #leiningen instead)

Hi, I am trying to create a spec for data that works for both qualified and unqualified keys. Here is the spec. Am I doing it right, or is there a more idiomatic way to do it

(s/def :contact/id uuid?)
(s/def :contact/first-name string?)
(s/def :contact/last-name string?)
(s/def :contact/email string?)

(s/def ::contact-item
  (s/keys
   :req [:contact/id :contact/first-name :contact/last-name :contact/email]))
(s/def ::contact-item-un
  (s/keys
   :req-un [:contact/id :contact/first-name :contact/last-name :contact/email]))

(s/def ::contact
  (s/or :qualified ::contact-item
        :unqualified ::contact-item-un)) 

Seems ok to me

I guess I’d wonder if you could transform the data first to have one spec instead

@alexmiller that’s true but then I’d have to call that function everywhere I need to transform.

something like this, @deadghost

(require '[spec-tools.core :as st])
(require '[clojure.spec.alpha :as s])

(s/def ::my-keyword
  (st/spec
    {:spec simple-keyword?
     :decode/string (fn [_ x] (keyword (str (namespace x) "-" (name x))))}))

(st/coerce
  ::my-keyword
  :foo/bar
  st/string-transformer)
; => :foo-bar

in my experience, fighting the fight for a canonical representation inside your own program is worth the battle