mirror of
https://github.com/Tarrasch/zsh-autoenv.git
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148 lines
4.2 KiB
Markdown
148 lines
4.2 KiB
Markdown
[](https://bitdeli.com/free "Bitdeli Badge")
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[](https://travis-ci.org/Tarrasch/zsh-autoenv)
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# Autoenv for Zsh
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zsh-autoenv automatically sources (known/whitelisted) `.autoenv.zsh` files,
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typically used in project root directories.
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It handles "enter" and leave" events, nesting, and stashing of
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variables (overwriting and restoring).
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## Features
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- Support for enter and leave events, which can use the same file.
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By default `.autoenv.zsh` is used for entering, and `.autoenv_leave.zsh`
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for leaving.
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- Interactively asks for confirmation / authentication before sourcing an
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unknown `.autoenv.zsh` file, and remembers whitelisted files by their
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hashed content.
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- Test suite.
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- Written in Zsh.
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### Variable stashing
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You can use `autostash` in your `.autoenv.zsh` files to overwrite some
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variable, e.g. `$PATH`. When leaving the directory, it will be automatically
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restored.
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% echo 'echo ENTERED; autostash FOO=changed' > project/.autoenv.zsh
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% FOO=orig
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% cd project
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Attempting to load unauthorized env file!
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-rw-rw-r-- 1 user user 36 Mai 6 20:38 /tmp/project/.autoenv.zsh
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**********************************************
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echo ENTERED; autostash FOO=changed
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**********************************************
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Would you like to authorize it? (type 'yes') yes
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ENTERED
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project % echo $FOO
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changed
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% cd ..
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% echo $FOO
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orig
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There is also `stash`, `unstash` and `autounstash`, in case you want to
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have more control.
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The varstash library has been taken from smartcd, and was optimized for Zsh.
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## Writing your .autoenv.zsh file
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### `autoenv_source_parent()`
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zsh-autoenv will stop looking for `.autoenv.zsh` files upwards after the first
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one has been found, but you can use the function `autoenv_source_parent` to
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source the next `.autoenv.zsh` file upwards the directory tree from there.
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The function accepts an optional argument, which allows to stop looking before
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the file system root is reached:
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```zsh
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autoenv_source_parent ../..
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```
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## Installation
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Clone the repository and source it from your `~/.zshrc` file:
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% git clone https://github.com/Tarrasch/zsh-autoenv ~/.dotfiles/lib/zsh-autoenv
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% echo 'source ~/.dotfiles/lib/zsh-autoenv/autoenv.zsh' >> ~/.zshrc
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### Using [antigen](https://github.com/zsh-users/antigen)
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antigen-bundle Tarrasch/zsh-autoenv
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### Using [zgen](https://github.com/tarjoilija/zgen)
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Add the following to your `.zshrc` where you are loading your plugins:
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zgen load Tarrasch/zsh-autoenv
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## Configuration
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You can use the following variables to control zsh-autoenv's behavior.
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Add them to your `~/.zshrc` file, before sourcing/loading zsh-autoenv.
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### AUTOENV\_FILE\_ENTER
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Name of the file to look for when entering directories.
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Default: `.autoenv.zsh`
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### AUTOENV\_FILE\_LEAVE
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Name of the file to look for when leaving directories.
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Requires `AUTOENV_HANDLE_LEAVE=1`.
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Default: `.autoenv_leave.zsh`
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### AUTOENV\_LOOK\_UPWARDS
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Look for zsh-autoenv "enter" files in parent dirs?
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Default: `1`
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### AUTOENV\_HANDLE\_LEAVE
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Handle leave events when changing away from a subtree, where an "enter"
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event was handled?
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Default: `1`
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### AUTOENV\_DISABLED
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(Temporarily) disable zsh-autoenv. This gets looked at in the chpwd handler.
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Default: 0
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### AUTOENV\_DEBUG
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Enable debugging. Multiple levels are supported (max 2).
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Default: `0`
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## Related projects
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- https://github.com/direnv/direnv
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- https://github.com/cxreg/smartcd
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- https://github.com/kennethreitz/autoenv
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## History
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This started as an optimized version of the bash plugin
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[autoenv](https://github.com/kennethreitz/autoenv) but for Zsh, and grew a lot
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of functionality on top of it (inspired by [smartcd]).
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The code was initially based on
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[@joshuaclayton](https://github.com/joshuaclayton)'s dotfiles.
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In September 2013 [@Tarrasch](https://github.com/Tarrasch) packaged it into a
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nice [antigen]-compatible unit with integration tests. Since November 2014,
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[@blueyed](https://github.com/blueyed) took over and added many many nice
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features, mainly inspired by [smartcd].
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[antigen]: https://github.com/Tarrasch/antigen-hs
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[smartcd]: https://github.com/cxreg/smartcd
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