![]() ![]() ![]() As long as you are only traversing the nodes you should be fine using the meta data and functions that depend on them (example zip/find-last-by-pos). Here's a little teaser on the sort of things you can do with the zipper features. A customized cljs.reader (based on clojurescript-in-clojurescript that mimics more of.An EDN aware zipper (using clojure.zip for ClojureScript).In January of 2019, graciously transferred rewrite-cljs to clj-commons. :wave: Want to chat? Say hi on Clojurians Slack in #rewrite-clj.Ĭreated by in 2015, rewrite-cljs was originally used for Clojure/ClojureScript refactoring support in Light Table. The behavior of its Clojure counterpart as closely as possible. It provides features to traverse and rewrite Clojure/ClojureScript/EDN documents in a whitespace and comment-aware manner replicating Here is an example of what this might look like in your project.This library is a ClojureScript port of rewrite-clj. Then you must configure your application’s :cljsbuild directive to compile for the :nodejs target. To run a ClojureScript app on Node.js, you must first have a Node.js runtime installed via either of the two methods described above. An application of this type can then be run with a JVM-based server such as Jetty, or it can be run on Node.js itself. Here is a sample ClojureScript application using lein-npm. If you need to disable this behavior, you can set the following config variable: $ heroku config:set SKIP_NODEJS_INSTALL=true If you need this behavior but are not using lein-npm, you can force the Clojure buildpack to install Node.js by setting the NODEJS_VERSION config variable described above. However, you can set the Node.js version with the following configuration variable: $ heroku config:set NODEJS_VERSION=4.2.1 No additional configuration is required when using lein-npm. Then it will add the deps target to your Leiningen buildpack process to ensure that all NPM packages are installed. An app that uses lein-npm will not have a package.json file, and cannot depend on the Node.js buildpack to manage dependencies.įortunately, the Clojure buildpack can detect the use of lein-npm, and will install a Node.js runtime if the plugin is found. The lein-npm plugin is a popular Leiningen plugin that supports NPM configuration directly in the project.clj file. Then NPM will install any dependencies you have in your package.json. Upon your next deployment, Heroku will run the Node.js buildpack first, which will install the Node.js runtime and NPM. Then add the file to your Git repository by running the following commands: $ git add package.json ![]() Create the package.json file in the root of your project and put the following code in it: ) to always pick up the latest version. In this file, you can define the version of Node.js to install and any dependencies your app needs. In order for the Node.js buildpack to execute, your project must also have a package.json file. This ensures Heroku will run the Node.js buildpack first, and the Clojure buildpack second. Then confirm the execution order by running this command: $ heroku buildpacks You can combine buildpacks by running the following commands: $ heroku buildpacks:clear This is useful for apps that contain a package.json file and need to run npm to manage dependencies. ![]() The Node.js buildpack can be combined with the Clojure buildpack using Heroku’s multi-buildpack support. This guide is primarily for developers who are trying to configure an existing app to build and run on Heroku. Both of these frameworks generate the necessary configuration for Heroku. If you are new to Clojure or ClojureScript and want to create an app from scratch, you should start with a framework like Luminus or Chestnut to generate a template for you. This article describes a few different ways in which Node.js can be combined with an application that uses the Clojure buildpack. Many Clojure and ClojureScript applications need a Node.js runtime during the build process or even to run an app. Using Node.js to run ClojureScript apps. ![]()
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