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Merge pull request #27 from blueyed/add-doc

Huge update of the README (finally)
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Arash Rouhani 2015-05-06 21:24:28 +02:00
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README.md
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[![Build Status](https://travis-ci.org/Tarrasch/zsh-autoenv.svg?branch=master)](https://travis-ci.org/Tarrasch/zsh-autoenv)
# Autoenv for zsh
# Autoenv for Zsh
This is is a zsh optimized version of
[autoenv](https://github.com/kennethreitz/autoenv)
zsh-autoenv automatically sources `.env` files, typically used in project
root directories.
## Why a zsh version
It handles "enter" and leave" events, nesting, and stashing of
variables (overwriting and restoring).
## Features
- Support for enter and leave events, which can use the same file.
By default `.env` is used for entering, and `.env_leave` for leaving.
- Asks for confirmation / authentication before sourcing a `.env` file, and
remembers whitelisted files by its hash.
- Test suite.
- Written in Zsh.
### Variable stashing
You can use `autostash` in your `.env` files to overwrite some variable, e.g.
`$PATH`. When leaving the directory, it will be automatically restored.
% echo 'echo ENTERED; autostash FOO=changed' > project/.env
% FOO=orig
% cd project
Attempting to load unauthorized env file!
-rw-rw-r-- 1 user user 36 Mai 6 20:38 /tmp/project/.env
**********************************************
echo ENTERED; autostash FOO=changed
**********************************************
Would you like to authorize it? (type 'yes') yes
ENTERED
project % echo $FOO
changed
% cd ..
% echo $FOO
orig
There is also `stash`, `unstash` and `autounstash`, in case you want to
have more control.
The varstash library has been taken from smartcd, and was optimized for Zsh.
## Writing your .env file
### `autoenv_source_parent()`
zsh-autoenv will stop looking for `.env` files after the first one has been
found. But you can use the function `autoenv_source_parent` to source a
parent `.env` file from there.
* Auto-completion will work rather than vomit
* No stupid error messages
* It's elegant to use the built in `chpwd_functions`
## Installation
Clone the repository and source it from your `~/.zshrc` file:
% git clone https://github.com/Tarrasch/zsh-autoenv ~/.dotfiles/lib/zsh-autoenv
% echo 'source ~/.dotfiles/lib/zsh-autoenv/autoenv.zsh' >> ~/.zshrc
### Using [antigen](https://github.com/zsh-users/antigen)
antigen-bundle Tarrasch/zsh-autoenv
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zgen load Tarrasch/zsh-autoenv
### Manually
Clone the repository and source it from your `~/.zshrc` file:
## Configuration
git clone https://github.com/Tarrasch/zsh-autoenv ~/.dotfiles/lib/zsh-autoenv
echo 'source ~/.dotfiles/lib/zsh-autoenv/autoenv.zsh' >> ~/.zshrc
You can use the following variables to control zsh-autoenv's behavior.
Add them to your `~/.zshrc` file, before sourcing/loading zsh-autoenv.
## Credits
### AUTOENV\_FILE\_ENTER
Name of the file to look for when entering directories.
The code was mostly copied from [Joshua Clayton](https://github.com/joshuaclayton)
Default: `.env`
### AUTOENV\_FILE\_LEAVE
Name of the file to look for when leaving directories.
Requires `AUTOENV_HANDLE_LEAVE=1`.
Default: `.env_leave`
### AUTOENV\_LOOK\_UPWARDS
Look for .env files in parent dirs?
Default: `1`
### AUTOENV\_HANDLE\_LEAVE
Handle leave events when changing away from a subtree, where an "enter"
event was handled?
Default: `1`
### AUTOENV\_DISABLED
(Temporarily) disable zsh-autoenv. This gets looked at in the chpwd handler.
Default: 0
### `AUTOENV_DEBUG`
Enable debugging. Multiple levels are supported (max 2).
Default: `0`
## Related projects
- https://github.com/cxreg/smartcd
- https://github.com/kennethreitz/autoenv
## History
This started as a optimized version of
[autoenv](https://github.com/kennethreitz/autoenv) for Zsh, but grew a lot of
functionality on top of it (inspired by
[smartcd](https://github.com/cxreg/smartcd)).
The code was initially based on [Joshua Clayton](https://github.com/joshuaclayton)'s work.

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# File to store confirmed authentication into.
: ${AUTOENV_ENV_FILENAME:=~/.env_auth}
# Name of file to look for when entering directories.
# Name of the file to look for when entering directories.
: ${AUTOENV_FILE_ENTER:=.env}
# Name of file to look for when leaving directories.
# Name of the file to look for when leaving directories.
# Requires AUTOENV_HANDLE_LEAVE=1.
: ${AUTOENV_FILE_LEAVE:=.env_leave}
# Look for .env in parent dirs?
# Look for .env files in parent dirs?
: ${AUTOENV_LOOK_UPWARDS:=1}
# Handle leave events when changing away from a subtree, where an "enter"