Clojurians Log v2
beginners 2025-12-03
Hi, I'm working on my first open source library in Clojure and planning to publish it soon. Are there any recommended steps, checklists, or best practices I should follow to ensure a smooth release and good community adoption? Any advice or resources would be greatly appreciated!
Maybe https://clojure-doc.org/articles/ecosystem/libraries_authoring/ will be helpful?
You may also find some of this useful: https://clojure-doc.org/articles/cookbooks/cli_build_projects/
Hi, can someone help me out with .gitignore file, I have only one deps file in my clojure app for just declaring functions. I pushed project on git and now i have plenty of unnecessary things. Teacher gave us task to write some functions and push it on git. Any advice or resources would be appreciated, thanks.
git can be tricky
https://raw.githubusercontent.com/github/gitignore/refs/heads/main/Leiningen.gitignore is a good basis for clojure gitignore
Thanks a lot
once you add that, the files you want to remove won't magically be added
if it's only a couple files, you can remove them with git rm --cached file1 file2 dir1/ etc
if there's lots of files, you can do
# Source -
# Posted by gtatr, modified by community. See post 'Timeline' for change history
# Retrieved 2025-12-03, License - CC BY-SA 4.0
git rm -r --cached .
git add .
git commit -m "Drop files from .gitignore" okay i will try it, thanks once again
ayy congrats
Rather than specify all the files and directories to ingnore in a project, all files can be ignored and then add specific files & directories to include.
Thid usually reduces the amount of changes needed to the ignore file
For example, use this as a .gitignore file in the root of each clijure project
https://github.com/practicalli/dotfiles/blob/main/git/ignore
Thankss
is there a reasonable way to get a clojure collection out of a java.util.Collection?
probably into, or perhaps vec , or similar?
haven't worked for me; vec tries to coerce it into an object array, and into requires the object be seqable which it is not
user=> (let [c (doto (java.util.concurrent.LinkedBlockingQueue.)
(.offer 1)
(.offer 2)
(.offer 3))]
(into [] c))
[1 2 3]
user=> (vec (doto (java.util.concurrent.LinkedBlockingQueue.)
(.offer 1)
(.offer 2)
(.offer 3)))
[1 2 3]what’s the concrete type?
java.util.Collections$3 lol
it's the return result from java.util.Collections/enumeration
have you seen
clojure.core/enumeration-seq
([e])
Returns a seq on a java.util.Enumerationperfect
that's what I was hoping for
i’m not seeing java.util.Collections/enumeration though
not that I'm using java 8
https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html i don’t know why i didn’t see it here?
ah Collection vs Collections
the original question is wrong -- you have an Enumeration, which is not a Collection
yeah, my bad
but you had a collection previously because you are calling something that you're feeding to Collections/enumeration
(apropos "enumer") is a useful thing to do
I also missed the s in collection, since the concrete type was java.util.Collections$3 I made the incorrect assumption that this would be a collection
but yeah, the question was wrong
yeah it's somewhat unfortunate for a REPL to print private concrete classes instead of public capabilities (Enumeration)
enumerations are super weird and precede 1.2 Collection API
Messing with jdbc for snowflake, doing lazy input stream construction to pass to a sequence input stream to make a csv upload.
what I've found is that apparently somewhere between creating an enumeration from the result of a clojure.core/map call and copying the bytes out of the sequence input stream, it truncates how many elements are consumed.
it doesn't appear to actually be the enumeration that's an issue because I get all the elements out of it when I try to coerce it back to clojure types with enumeration-seq
rather, it seems like SequenceInputStream is the problem
found my issue, apparently it's a jdk bug: https://github.com/openjdk/jdk/commit/2d609557ffe8e15ab81fb51dce90e40780598371