fireplace.vim
There's a REPL in Fireplace, but you probably wouldn't have noticed if I hadn't told you. Such is the way with fireplace.vim. By the way, this plugin is for Clojure.
Installation
First, set up cider-nrepl. (If you skip this step, only a subset of functionality will be available.)
Install Fireplace using your favorite package manager, or use Vim's built-in package support:
mkdir -p ~/.vim/pack/tpope/start
cd ~/.vim/pack/tpope/start
git clone https://tpope.io/vim/fireplace.git
vim -u NONE -c "helptags fireplace/doc" -c q
You might also want salve.vim for assorted static project support.
Features
This list isn't exhaustive; see the :help for details.
Transparent setup
Fireplace talks to nREPL. With Leiningen and Boot, it connects automatically
using the .nrepl-port file created when you run lein repl or boot repl.
If you are starting nREPL some other way, run :FireplaceConnect host:port.
You can connect to multiple instances of nREPL for different projects, and it
will use the right one automatically. ClojureScript support is just as
seamless with Piggieback.
If you're using the new Clojure CLI, you can follow the instructions for
running cider-nrepl with clj.
Briefly, clj -Sdeps '{:deps {cider/cider-nrepl {:mvn/version "0.21.1"} }}' -m nrepl.cmdline --middleware "[cider.nrepl/cider-middleware]" should do the trick.
The cider-nrepl docs also show you how you can add an alias to
your user's ~/.clojure/deps.edn file, letting you more simply run clj -A:cider-clj.
Oh, and if you don't have an nREPL connection, installing salve.vim
lets it fall back to using java clojure.main for some of the basics, using a
class path based on your Leiningen or Boot config. It's a bit slow, but a
two-second delay is vastly preferable to being forced out of my flow for a
single command, in my book.
Not quite a REPL
You know that one plugin that provides a REPL in a split window and works absolutely flawlessly, never breaking just because you did something innocuous like backspace through part of the prompt? No? Such a shame, you really would have liked it.
I've taken a different approach in Fireplace. cq (Think "Clojure
Quasi-REPL") is the prefix for a set of commands that bring up a command-line
window β the same thing you get when you hit q: β but set up for Clojure
code.
cqq prepopulates the command-line window with the expression under the
cursor. cqc gives you a blank line in insert mode.
Evaluating from the buffer
Standard stuff here. :Eval evaluates a range (:%Eval gets the whole
file), :Require requires a namespace with :reload (:Require! does
:reload-all), either the current buffer or a given argument. :RunTests
kicks off (clojure.test/run-tests) and loads the results into the quickfix
list.
There's a cp operator that evaluates a given motion (cpp for the
innermost form under the cursor). cm and c1m are similar, but they only
run clojure.walk/macroexpand-all and macroexpand-1 instead of evaluating
the form entirely.
Any failed evaluation loads the stack trace into the location list, which
can be easily accessed with :lopen.
Navigating and Comprehending
I was brand new to Clojure when I started this plugin, so stuff that helped me understand code was a top priority.
-
:Source,:Doc, and:FindDoc, which map to the underlyingclojure.replmacro (with tab complete, of course). -
Kis mapped to look up the symbol under the cursor withdoc. -
[dis mapped to look up the symbol under the cursor withsource. -
[<C-D>jumps to the definition of a symbol (even if it's inside a jar file).<C-]>does the same and uses the tag stack. -
gf, everybody's favorite "go to file" command, works on namespaces.
Where possible, I favor enhancing built-ins over inventing a bunch of
<Leader> maps.
Omnicomplete
Because why not? It works in the quasi-REPL too.
FAQ
Why does it take so long for Vim to start up?
That's either classpath.vim or salve.vim.
Self-Promotion
Like fireplace.vim? Follow the repository on GitHub and vote for it on vim.org. And if you're feeling especially charitable, follow tpope on Twitter and GitHub.
License
Copyright Β© Tim Pope. Distributed under the same terms as Vim itself.
See :help license.