Hotload libraries into a Clojure Editor

Hotload libraries in a terminal REPL UI

Start a REPL session using the Clojure CLI tools with the hotload alias, including rebel readline for an enhance REPL UI.

clojure -M:lib/hotload:repl/rebel

The required libraries for the :hotload-libs alias are downloaded (if not already available locally in ~/.m2 maven cache on first run).

The REPL process with start and the terminal will show the Rebel UI.

Clojure REPL - hot load library dependencies

Require the clojure.tools.deps.alpha library and refer the add-libs function. The add-libs function can then be called without having to use an alias or the fully qualified name.

(require '[clojure.tools.deps.alpha.repl :refer [add-libs]])

Hotload a library into the REPL using the add-lib function in the following form, where domain/library is the fully qualified name of the library and RELEASE is a string of the version number of that library to use.

(add-libs '{domain/library {:mvn/version "RELEASE"}})

Multiple libraries can be hot-loaded in a single add-libs expression

(add-libs '{hhgttg/meaning {:mvn/version "4.2.0"}
            eternity/room  {:mvn/version "1.0.1"}})

Hotload hiccup in a terminal REPL

The hiccup library converts clojure structures into html, where vectors represent the scope of keywords that represent html tags.

Load the hiccup library using add-libs

(add-libs '{hiccup/hiccup {:mvn/version "2.0.0-alpha2"}})

Require the hiccup library so its functions are accessible from the current namespace in the REPL.

(require '[hiccup.core :as hiccup])

Enter an expression using the hiccup/html function to convert a clojure data structure to html.

(hiccup/html [:div {:class "right-aligned"}])

The hiccup expression returns a string of the html code.

Clojure REPL hot load dependencies

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