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Automatic virtualenv activaiion and deactivation, virtualenv non lazy

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This commit is contained in:
Keerthan Jaic 2013-12-20 04:09:45 -05:00
parent 2ebdbdcff5
commit e3696d2c28
2 changed files with 74 additions and 2 deletions
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23
modules/python/README.md
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@ -61,6 +61,29 @@ system site-packages directory.
export VIRTUALENVWRAPPER_VIRTUALENV_ARGS='--no-site-packages'
### Settings
#### Lazy loading
By default, virtualenvwrapper is loaded in lazy mode. This behaviour can be disabled adding the following line to *~/.zpreztorc*:
zstyle ':prezto:module:python' lazy_venv 'no'
#### Automatic virtualenv initialization
To enable autoenv, add the following line to *~/.zpreztorc*:
zstyle ':prezto:module:python' autoenv 'yes'
If a virtualenv is active, and was not activated by autoenv, then autoenv does nothing.
Otherwise, autoenv activated or deactivates a virtual environment whenever a directory is changed; based on the following priority:
1. Name specified in a file named *.venv* in the cwd.
2. *.venv* file in git root. If folder is inside git repository.
3. Name of git root folder.
4. No virtualenv.
Aliases
-------

53
modules/python/init.zsh
View File

@ -31,17 +31,66 @@ if (( ! $+commands[python] && ! $+commands[pyenv] )); then
return 1
fi
local venv_script=virtualenvwrapper
if zstyle -T ':prezto:module:python' lazy_venv; then
venv_script+=_lazy
fi
# Load virtualenvwrapper into the shell session.
if (( $+commands[virtualenvwrapper_lazy.sh] )); then
if (( $+commands[$venv_script.sh] )); then
# Set the directory where virtual environments are stored.
export WORKON_HOME="$HOME/.virtualenvs"
# Disable the virtualenv prompt.
VIRTUAL_ENV_DISABLE_PROMPT=1
source "$commands[virtualenvwrapper_lazy.sh]"
source "$commands[$venv_script.sh]"
fi
function autoenv {
#Don't run in shell scripts etc.
if [[ $ZSH_SUBSHELL -ne 0 ]]; then
return
fi
#Don't run if currently in virtual env not set by autoenv
if (( ($+VIRTUAL_ENV) && !($+AUTOENV) )); then
return
fi
local name=""
if [[ -f .venv ]]; then
#.venv file in current dir gets highest priority
name=$(<.venv)
elif is-true "$(git rev-parse --is-inside-work-tree 2> /dev/null)"; then
local gitroot="$(git rev-parse --show-toplevel 2> /dev/null)"
if [ -f "$gitroot/.venv" ]; then
#If there is a .venv file in gitroot
name=$(<$gitroot/.venv)
else
#Else use the name of the folder as venv name
name=$gitroot:t
fi
fi
local venv_name="$VIRTUAL_ENV:t"
if [[ $name != $venv_name ]]; then
if [[ -z $name ]]; then
deactivate && unset AUTOENV
return
fi
if [[ -d "$WORKON_HOME/$name" ]]; then
workon $name && export AUTOENV=1
return
fi
fi
}
if zstyle -T ':prezto:module:python' autoenv; then
add-zsh-hook chpwd autoenv
fi
#
# Aliases
#