Crystal version manager. crenv is inspired by rbenv.

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It's very easy for you to install crenv, if you use anyenv.

First, you should install anyenv.

Next, you try to execute following commands:

$ anyenv install crenv
$ exec $SHELL -l
$ crenv -v
crenv 1.0.0

You try to execute following commands:

$ curl -L https://raw.github.com/pine/crenv/master/install.sh | bash

or

$ wget -qO- https://raw.github.com/pine/crenv/master/install.sh | bash

And, please add your shell profile:

$ echo 'export PATH="$HOME/.crenv/bin:$PATH"' >> ~/.your_profile
$ echo 'eval "$(crenv init -)"' >> ~/.your_profile
$ exec $SHELL -l
$ crenv -v
crenv 1.0.0

If you installed crenv, you may installed Crystal as following.

$ crenv install 0.20.0 # install Crystal
$ crenv global 0.20.0 # set global Crystal version
$ crenv rehash
$ crystal --version
Crystal 0.20.0 (2016-11-22)
$ shards --version
Shards 0.7.0 (2016-11-22)

Please see help.

$ crenv help
Usage: crenv <command> [<args>]
Some useful crenv commands are:
   commands    List all available crenv commands
   local       Set or show the local application-specific Crystal version
   global      Set or show the global Crystal version
   shell       Set or show the shell-specific Crystal version
   rehash      Rehash crenv shims (run this after installing executables)
   version     Show the current Crystal version and its origin
   versions    List all Crystal versions available to crenv
   which       Display the full path to an executable
   whence      List all Crystal versions that contain the given executable
See `crenv help <command>' for information on a specific command.
For full documentation, see: https://github.com/pine/crenv#readme

You might want to see rbenv#command-reference if you been looking for command reference.

The crenv install command doesn't ship with crenv out of the box, but is provided by the crystal-build project.

# list all available versions:
$ crenv install -l
# install a Crystal version:
$ crenv install 0.20.0
# set global Crystal version:
$ crenv global 0.20.0

Please execute following commands to update crenv.

$ cd ~/.crenv # or ~/.anyenv/envs/crenv
$ git pull origin master
$ cd plugins/crystal-build
$ git pull origin master

The crenv source code is hosted on GitHub. It's clean, modular, and easy to understand, even if you're not a shell hacker.

Tests are executed using Bats:

$ bats test
$ bats test/<file>.bats

1. Fork it ( https://github.com/pine/crenv/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

• riywo
  crenv is forked from ndenv. Thank you.
• sstephenson
  crenv is copied code from rbenv. Thank you.

• crystalbrew Another Crystal version manager

(The MIT license)

Copyright (c) 2015-2016 Pine Mizune

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Pine Mizune <pinemz@gmail.com>