How would I pass a JSON string as an arg to a clojure -X:bench execution when that JSON is generated by a sub-command? Example:

clojure -X:bench :json "$(my_cmd --blah)"

Unreadable arg: "{\"blah\": 1}"

I can't seem to find the magic incantation that gets the quoting right

probably tricky

you need the outer double quotes for the inner to be evaluated

I can pass the JSON in manually like this:

clojure -X:bench :json-plan '"{\"blah\": 1}"' 

but you also need explicit double quotes

maybe "\"$(...)\""?

so yeah, something like that

or just use -M -m :)

or pipe into stdin and read that :)

or god forbid, a REPL

"\"$(...)\"" results in clojure seeing only the opening { character...

Yea, I may have to switch my approach here 😉

or put it in a file and pass the file as the arg. would be helpful when keeping interesting test cases around

^ what he said

Yep, I'll just do that

thanks all

Was breaking my fingers in the name of concision haha

it must fit on one line

Can -X functions read from stdin?

we have an interesting test runner that can take a namespace, a list of namespaces, or a directory and run all tests contained in those. You could do similar logic so you can pass a file, a list of files, or a directory. clj -X:bench -json examples/weird/funky.json or clj -X:bench -json examples/stress or what have you. Or you can put different keys for the different types

Nice. Actually it looks like I can just use (read-line) to grab the JSON from stdin!

in case it's multi-line: (slurp *in*)

Thanks, that's probably safer

@cjsauer Try '"'$(my_cmd --blah)'"' -- although that may still not work with the internal quoting.

(but, yeah, reading JSON from stdin is likely to be easier than wrangling shell quoting)

@seancorfield The outer single quotes will prevent the $() from being "eval-ed"

No it won't.

(! 678)-> echo '"'$(clojure -Spath)'"'
"src:/Users/sean/.m2/repository/org/clojure/clojure/1.11.0-beta1/clojure-1.11.0-beta1.jar:/Users/sean/.m2/repository/org/clojure/core.specs.alpha/0.2.62/core.specs.alpha-0.2.62.jar:/Users/sean/.m2/repository/org/clojure/spec.alpha/0.3.218/spec.alpha-0.3.218.jar"

(but it does not handle quotes in the content unfortunately)

(! 754)-> echo '"'$(cat deps.edn)'"'
"{:aliases { :hiccup {:extra-deps {hiccup/hiccup {:mvn/version "RELEASE"}}} :exec {:exec-fn [a b] :ns-default exec} :build {:extra-deps {io.github.seancorfield/build-clj {:local/root "/Developer/workspace/build-clj"}}} :build-slim {:extra-deps {io.github.seancorfield/build-clj {:local/root "/Developer/workspace/build-clj/slim"}}} :dev {:jvm-opts ["-Dclojure.compile.warn-on-reflection=true"]}}}"

(! 755)-> echo '"'$(cat deps.edn|sed 's;";\\";g')'"'
"{:aliases { :hiccup {:extra-deps {hiccup/hiccup {:mvn/version \"RELEASE\"}}} :exec {:exec-fn [a b] :ns-default exec} :build {:extra-deps {io.github.seancorfield/build-clj {:local/root \"/Developer/workspace/build-clj\"}}} :build-slim {:extra-deps {io.github.seancorfield/build-clj {:local/root \"/Developer/workspace/build-clj/slim\"}}} :dev {:jvm-opts [\"-Dclojure.compile.warn-on-reflection=true\"]}}}"

@seancorfield Ah, I see!