CODEWITHSUNDEEP
clojureherokuleiningen
Matthew Boston
Matthew Boston

Reputation: 1320

How to upgrade Heroku Leiningen version?

When deploying a clojure app to Heroku, I see it is using "cached Leiningen 1.6.2

$ git push heroku master
Counting objects: 271, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (205/205), done.
Writing objects: 100% (251/251), 737.28 KiB | 583 KiB/s, done.
Total 251 (delta 48), reused 234 (delta 41)

-----> Heroku receiving push
-----> Clojure app detected
-----> Using cached Leiningen 1.6.2
       Downloading: rlwrap-0.3.7
       Writing: lein script
-----> Installing dependencies and compiling with Leiningen
...

I would like to upgrade to 1.7.0 so I can take advantage of the :plugins feature in the project.clj.

How can I have Heroku upgrade the version of Leiningen on my cedar stack?

Thanks!

Upvotes: 3

Views: 392

Answers (2)

user61051
user61051

Reputation:

So... I'm working on it. =) I haven't announced 1.7.0 yet because I've gotten a bug report I haven't been able to reproduce, but once I get a chance to investigate and fix if applicable I'll have it in the official buildpack. In the mean time you can use a custom BUILDPACK_URL to point to the lein-1.7 branch:

$ heroku config:add BUILDPACK_URL=http://github.com/heroku/heroku-buildpack-clojure.git#lein-1.7

Upvotes: 3

DuoSRX
DuoSRX

Reputation: 4189

You might be able to change the version using a customized buildpack.
You can then specify the version in bin/compile :

# install leiningen jar
LEIN_VERSION="1.6.2"
LEIN_JAR_URL="https://heroku-buildpack-clojure.s3.amazonaws.com/leiningen-$LEIN_VERSION-standalone.jar"
LEIN_JAR_PATH="$CACHE_DIR/leiningen-$LEIN_VERSION-standalone.jar"

I'm not 100% sure this will work though. I'd suggest you wait for Heroku to update Leiningen :)

Upvotes: 0

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