dashboard

The new (as of 2020) CLJS frontend dashboard for Yetibot

Prerequisites

Shadow-cljs

We chose shadow-cljs as our main build tool for the project. shadow-cljs is easy to use and configure and comes with a very good integration with the other tools that we already use on the other sub-projects under Yetibot, for e.g Leiningen.

See the shadow-cljs user-guide on how to install it.

Leiningen

Leiningen is the Clojure build tool that Yetibot uses. For dashboard, shadow-cljs delegates the dependency management to leiningen.

See the Leiningen Installation docs to install it.

Development workflow using the shadow-cljs CLI

Running a watch process

To start a watch process which will monitor changes and automatically recompile the dashboard code base, run the following from your terminal:

$ shadow-cljs watch :dashboard

a watch will implicitly start a server process which will be re-used by all commands sent by the CLI, instead of starting a new JVM.

 + react-dom@16.13.0
 + react@16.13.0
 added 1 package, updated 2 packages and audited 36 packages in 4.611s
 found 0 vulnerabilities
 
 shadow-cljs - server version: 2.8.94 running at http://localhost:9630
 shadow-cljs - nREPL server started on port 63095
 shadow-cljs - watching build :dashboard
 [:dashboard] Configuring build.
 [:dashboard] Compiling ...
 [:dashboard] Build completed. (157 files, 156 compiled, 0 warnings, 35.04s)

To stop the watch process, just type in CTRL-C from the CLI :

 ...
 [:dashboard] Configuring build.
 [:dashboard] Compiling ...
 [:dashboard] Build completed. (157 files, 156 compiled, 0 warnings, 35.04s)

 Ctrl^C

The REPL

To start the REPL, run :

$ shadow-cljs browser-repl :dashboard

It will launch a browser providing the runtime used to evaluate the code entered in the REPL

+ react-dom@16.13.0
+ react@16.13.0
updated 2 packages and audited 36 packages in 1.479s
found 0 vulnerabilities

[:browser-repl] Configuring build.
[:browser-repl] Compiling ...
[:browser-repl] Build completed. (157 files, 156 compiled, 0 warnings, 21.91s)
cljs.user=>

Development workflow using the provided `dev.clj` namespace

We also provide a dev.clj namespace in dev/dev.clj which allows for a more Clojure-friendly workflow during development. This namespace contains a few utility functions for programmatically interacting with shadow-cljs through its Clojure API. The first step is to eval those functions in your REPL.

...
(defn- compile-build
  "Compiles a build `build-id` where `build-id` is a
  keyword identifying a build.
  This is equivalent to invoking :
  $ shadow-cljs compile :build-id"
  [build-id]
  (shadow/compile build-id))
=> nil
=> #'dev/start-server
=> #'dev/stop-server
=> #'dev/re-init-server
=> #'dev/watch-build
=> #'dev/compile-build

You can then watch or compile a build, start, stop or re-init the shadow-cljs server by just calling those functions from within the REPL.

Starting the shadow-cljs server

;; starts a shadow-cljs server
(start-server)
avr. 13, 2020 1:08:25 PM org.xnio.Xnio <clinit>
INFO: XNIO version 3.7.3.Final
avr. 13, 2020 1:08:25 PM org.xnio.nio.NioXnio <clinit>
INFO: XNIO NIO Implementation Version 3.7.3.Final
avr. 13, 2020 1:08:25 PM org.jboss.threads.Version <clinit>
INFO: JBoss Threads version 2.3.2.Final
shadow-cljs - server version: 2.8.94 running at http://localhost:9630
shadow-cljs - nREPL server started on port 34619
=> :shadow.cljs.devtools.server/started

;; since a shadow-cljs server is already running
(start-server)
=> :shadow.cljs.devtools.server/already-running

Shutting down the shadow-cljs server

;; stops the running shadow-cljs server
(stop-server)
shutting down ...
=> nil

Re-initializing the shadow-cljs server

;; re-initializes the running shadow-cljs server
(re-init-server)
shadow-cljs - server version: 2.8.94 running at http://localhost:9630
shadow-cljs - nREPL server started on port 42915
=> :shadow.cljs.devtools.server/started

Watching a build

;; watches a build (e.g here :dashboard)
(watch-build :dashboard)
[:dashboard] Configuring build.
[:dashboard] Compiling ...
=> :watching
[:dashboard] Build completed. (157 files, 1 compiled, 0 warnings, 2,18s)
...

Compiling a build

;; compiles a build (e.g here :dashboard)
(compile-build :dashboard)
[:dashboard] Compiling ...
[:dashboard] Build completed. (59 files, 0 compiled, 0 warnings, 0,58s)
=> :done

yetibot/dashboard

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