https://github.com/trending/developers/clojure?since=monthly 🚀

Also https://github.com/cldwalker/bb-clis ?

Q: is there an example of how to use GZIPOutputStream in bb? I get a ClassCastException when I try to create one

nvm: I had the wrong type in the constructor

@steveb8n Now I'm really curious what you're doing 🙂

I’m uploading static assets to s3. I want to gzip them so that they are served to browsers fast

I could use shell zip but I’m not sure it will be the same on osx vs linux (in CI)

(good morning!)

cool! that class was included to support clj-http-lite, but good to know it's also being used in other ways

since you are here: I’m stuck on the final step. I have gzipped into a byte array but can’t work out how to write bytes out to a file

is there an example of this somewhere? all I can find is spit

maybe using FileOutputStream?

http://tutorials.jenkov.com/java-zip/gzipoutputstream.html

hmm, that's not there it seems in bb

scratch that: it works with io/output-stream

success!

(as they say in NL)

cool! can you maybe provide a small example of how to use this? would be helpful

I mean, I can do this:

bb '(.write (java.util.zip.GZIPOutputStream. (io/output-stream "/tmp/foo.zip")) (.getBytes "dude"))'

here’s what’s working for me..

(let [out-dir "public/editor-js"
      in-file-name (str out-dir "/" (base-file-name out-dir))
      out-file-name (str in-file-name ".gz")]
  (with-open [out-stream (io/output-stream out-file-name)
              gzip (GZIPOutputStream. out-stream)]
    (io/copy (io/file in-file-name) gzip)
    (.finish gzip))

  [out-file-name (.length (io/file out-file-name))])

final step is to upload to aws. for that I use the gist from Jeroen https://gist.github.com/jeroenvandijk/e4fca617cf3eea82d58bc87e37e35465#file-spire-clj-L31-L50

right, very cool

all the file name stuff is just to find the output file from shadow-cljs advanced compile

all linked up now. this will save me some build minutes 🙂

$ bb '(with-open [os (java.util.zip.GZIPOutputStream. (io/output-stream "/tmp/foo.zip"))] (.write os (.getBytes "dude")) (.finish os))'
$ bb '(slurp (java.util.zip.GZIPInputStream. (io/input-stream "/tmp/foo.zip")))'
"dude"

sweet as!

(as they say in NZ)

that might save someone some time if you add it to the readme

(no doubt that’s your plan already)

yeah, made an issue for it.

Is that similar to "sweet af"?

no “as” is not an acronym 🙂

but the sentiment is the same

so I already learned two things today, going well 🙂

thanks again. I’m gonna stop work now. time to wind down.

have a good day

hello everyone, is there a preferred way of parsing cli arguments? lets say run `$ ./my-bb-script.clj --foo bar --x y` , is there and a symbol like *`command-line-args*`  that would hold a map of args in babashka?

@plins yes:

$ bb -e '*command-line-args*' -x -y -z
("-x" "-y" "-z")

Also see: https://github.com/borkdude/babashka#command-line-arguments

You can also use clojure.tools.cli to parse args.

thanks 🙂