Warp Directory – a drop-in replacement (superset to be precise) of the nifty 'wd' ZSH module. This one is written in ruby, and works with any shell.
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README.md

Warp Directory

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This is a ruby implementation of the tool wd (warp directory), originally written as a ZSH module by Markus Færevaag.

I personaly went back to bash after trying out ZSH, but it was the wd plugin that I really missed.

While Markus kindly offered a ruby version in a separate branch of this module, it wasn't quite as extensible as I wanted to (or well tested), so it ended up being an inspiration for this gem.

Warp This

WarpDir is a UNIX command line tool that works somewhat similar to the standard built-in command cd — "change directory".

The main difference is that wd is able to add/remove/list folder "shortcuts", and allows you to jump to these shortcuts from anywhere on the filesystem.

This of this as a folder-navigation super-charge tool that you'd use on a most frequently-used set of folders. This becomes really useful if you are often finding youself going into a small number of deeply nested folders with a long path prefix.

Installation

Three steps:

  • wd requires a Ruby interpreter version 2.2 higher.
    • Please Check your default ruby with ruby --version. You should see something like "ruby 2.3.0p0....".
    • If you see version 1.9 or earlier, please upgrade your ruby using the package manager native to your OS.
  • Install warp-dir ruby gem (note: you may need to prefix the command with sudo if you are installing into the "system" ruby namespace).
$ gem install warp-dir --no-ri --no-rdoc
  • The last step is to install the wd BASH function and auto-completion. This step appends the required shell function to your shell initialization file, that is specified with the --dotfile flag.
$ warp-dir install --dotfile ~/.bash_profile

After the last step you need to restart your session, so – if you are on Mac OS X, – please reopen your Terminal or better yet – iTerm2, and then type:

$ wd help

If the above command returns a properly formatted help that looks like the image below, your setup is now complete!

Image

Usage

NOTE: in the below examples, the characters ~ ❯ denote the current shell prompt, showing the current folder you are in. The command to type is on the right hand side of the "❯".

Let's first bookmark a long directory:

~cd ~/workspace/arduino/robots/command-bridge/src
~/workspace/arduino/robots/command-bridge/src ❯ wd add cbsrc
Warp point saved!

~/workspace/arduino/robots/command-bridge/src ❯ cd ~/workspace/c++/foo/src
~/workspace/c++/foo/src ❯ wd add foosrc
Warp point saved!

~/workspace/c++/foo/src ❯ cd /usr/local/Cellar
/usr/local/Cellar ❯ wd add brew
Warp point saved!

Now we can list/inspect current set of warp points:

/usr/local/Cellar ❯ wd l
   cbsrc -> ~/workspace/arduino/robots/command-bridge/src
  foosrc -> ~/workspace/c++/foo/src
    brew -> /usr/local/Cellar

Now we can jump around these warp points, as well as run 'ls' inside (even passing arbitrary arguments to the ls itself):

/usr/local/Cellar ❯ wd cbsrc
~/workspace/arduino/robots/command-bridge/src ❯ wd foosrc
~/workspace/c++/foo/src ❯  1 wd ls brew -- -alF | head -4        # run ls -alF inside /usr/local/Cellar
total 0
drwxrwx---  73 kig  staff  2482 May  7 15:29 ./
drwxrwx---  21 kig  staff   714 Apr 28 11:40 ../
drwxrwx---   3 kig  staff   102 Dec 24 03:14 ack/

Command Completion

If you installed wd properly, it should register it's own command completion for BASH and be ready for your tabs :)

Note that you can use wd to change directory by giving an absolute or relative directory name, just like cd (so not just using warp-points), so when you type wd [TAB] you will see all saved warp points as well as the local directories you can cd into.

That's basically it!

Config File (aka. Warp Points Database)

All of the mappings are stored in the ~/.warprc file, where the warp point name is followed by a colon, and the path it maps to. So it's trivial to do a global search/replace on that file in your favorite editor, if, for example, a commond top level folder had changed.

The format of the file was left identical to that of the ZSH version of wd so that one could switch back and force between the two versions of wd and still be able to use their collection of warp points.

See? I think we thought of everything :)

Happy warping!

wd Concept

The overall concept comes from the realization that when we work on the command line, we often do things that wd tool provides straight out of the box, such as:

  • we often have to deal with a limited number of folders at any given time
  • on occastion have to jump between these folders (which we call warp points), which may require mult-level cd command, for example: cd ~/workspace/foo/src/include/; ....; cd ~/Documents/Microsoft\ Word/; ...
  • seems like it should be easy to add, remove and list warp points
  • everything should require typing few characters as possible :)
  • it would be great to have full BASH completion support

Some future extensions could be based on some additional realizations:

  • perhaps you might want to inspect a bookmarked folder without leaving your current place.
  • maybe by inspecting we mean — running a find, or ls or any other command for that matter

Notable Differences with original wd

  • instead of wd add! use wd add -f <point> (or --force)

These features will be added shortly:

  • for now wd clean is not supported
  • for now history is not supported
  • for now '-' is not supported

Future Development

I have so many cool ideas about where this can go, that I created a dedicated page for the discussion of future features. Please head over there if you'ld like to participate.

Development

After checking out the repo, run bin/setup to install dependencies. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Adding New Commands

Just follow the patter in the lib/warp/dir/commands/ folder, copy and modify one of the existing commands. Command class name is used as an actual command.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/kigster/warp-dir.

Author

© 2016 Konstantin Gredeskoul, all rights reserved.

License

This project is distributed under the MIT License.