136 lines
4.9 KiB
Markdown
136 lines
4.9 KiB
Markdown
# fireplace.vim
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There's a REPL in fireplace, but you probably wouldn't have noticed if I hadn't
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told you. Such is the way with fireplace.vim. By the way, this plugin is for
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Clojure.
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Fireplace.vim used to be called foreplay.vim, but it was renamed so Java
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developers wouldn't have to speak in hushed tones.
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## Installation
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Fireplace.vim doesn't provide indenting or syntax highlighting, so you'll want
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[a set of Clojure runtime files](https://github.com/guns/vim-clojure-static).
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You might also want [classpath.vim][] to run code when no REPL is available.
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If you don't have a preferred installation method, I recommend
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installing [pathogen.vim](https://github.com/tpope/vim-pathogen), and
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then simply copy and paste:
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cd ~/.vim/bundle
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git clone git://github.com/tpope/vim-fireplace.git
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git clone git://github.com/tpope/vim-classpath.git
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git clone git://github.com/guns/vim-clojure-static.git
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Once help tags have been generated, you can view the manual with
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`:help fireplace`.
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## Features
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This list isn't exhaustive; see the `:help` for details.
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### Transparent setup
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Fireplace.vim talks to nREPL. With Leiningen, it connects automatically based
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on `target/repl-port`, otherwise it's just a `:Connect` away. You can connect
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to multiple instances of nREPL for different projects, and it will use the
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right one automatically.
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The only external dependency is that you have either a Vim with Python support
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compiled in, or `ruby` in your path. (Don't ask.)
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Oh, and if you don't have an nREPL connection, installing [classpath.vim][]
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lets it fall back to using `java clojure.main`, using a class path based on
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your Leiningen or Maven config. It's a bit slow, but a two second delay its
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vastly preferable to being forced out of my flow for a single command, in my
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book.
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[classpath.vim]: https://github.com/tpope/vim-classpath
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### Not quite a REPL
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You know that one plugin that provides a REPL in a split window and works
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absolutely flawlessly, never breaking just because you did something innocuous
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like backspace through part of the prompt? No? Such a shame, you really
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would have liked it.
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I've taken a different approach in fireplace.vim. `cq` (Think "Clojure
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Quasi-REPL") is the prefix for a set of commands that bring up a *command-line
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window* — the same thing you get when you hit `q:` — but set up for Clojure
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code.
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`cqq` prepopulates the command-line window with the expression under the
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cursor. `cqc` gives you a blank line in insert mode.
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### Evaluating from the buffer
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Standard stuff here. `:Eval` evaluates a range (`:%Eval` gets the whole
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file), `:Require` requires a namespace with `:reload` (`:Require!` does
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`:reload-all`), either the current buffer or a given argument. There's a `cp`
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operator that evaluates a given motion (`cpp` for the expression under the
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cursor).
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Any failed evaluation loads the stack trace into the location list, which
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can be easily accessed with `:lopen`.
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### Navigating and Comprehending
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I'm new to Clojure, so stuff that helps me understand code is a top priority.
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* `:Source`, `:Doc`, `:FindDoc`, and `:Apropos`, which map to the underlying
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`clojure.repl` macro (with tab complete, of course).
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* `K` is mapped to look up the symbol under the cursor with `doc`.
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* `[d` is mapped to look up the symbol under the cursor with `source`.
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* `[<C-D>` jumps to the definition of a symbol (even if it's inside a jar
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file).
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* `gf`, everybody's favorite "go to file" command, works on namespaces.
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Where possible, I favor enhancing built-ins over inventing a bunch of
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`<Leader>` maps.
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### Omnicomplete
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Because why not? It works in the quasi-REPL too.
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### FAQ
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> Why does it take so long for Vim to startup?
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See the [classpath.vim FAQ][]. You can uninstall classpath.vim if you only
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care about nREPL support.
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[classpath.vim FAQ]: https://github.com/tpope/vim-classpath#FAQ
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## Contributing
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More than any other plugin, I'm in over my head here. I tried to do my
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homework, but you don't learn best practices overnight. Please, open
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[GitHub issues][] for bug reports and feature requests. Even better than a
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feature request is just to tell me the pain you're experiencing, and perhaps
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some ideas for what might eliminate it. I know Vimscript; you know Clojure.
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Let's synergize.
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I'm a stickler for [commit messages][], so if you send me a pull
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request with so much as superfluous period in the subject line, I will
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reject it, then TP your house.
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[GitHub issues]: http://github.com/tpope/vim-fireplace/issues
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[commit messages]: http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html
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## Self-Promotion
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Like fireplace.vim? Follow the repository on
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[GitHub](https://github.com/tpope/vim-fireplace). And if
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you're feeling especially charitable, follow [tpope](http://tpo.pe/) on
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[Twitter](http://twitter.com/tpope) and
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[GitHub](https://github.com/tpope).
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## License
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Copyright © Tim Pope. Distributed under the same terms as Vim itself.
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See `:help license`.
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