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[python] Refine pyenv based virtualenv management

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Now that pyenv plugins availability is detected by directly probing
'pyenv', we need to rely on the same mechanism consistently.

Further, we perform available pyenv plugin scan with native zsh
techniques instead of relying on external commands.
This commit is contained in:
Indrajit Raychaudhuri 2017-08-17 22:53:25 -05:00
parent 5ffc8a07f1
commit 83ab314b77
1 changed files with 18 additions and 9 deletions
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27
modules/python/init.zsh
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@ -92,18 +92,25 @@ if (( $+VIRTUALENVWRAPPER_VIRTUALENV || $+commands[virtualenv] )) && \
# Disable the virtualenv prompt.
VIRTUAL_ENV_DISABLE_PROMPT=1
# Enable 'virtualenv' with 'pyenv'.
if (( $+commands[pyenv] )) && \
pyenv commands | command grep -q virtualenv-init
then
# Create a sorted array of available virtualenv related 'pyenv' commands to
# look for plugins of interest. Scanning shell '$path' isn't enough as they
# can exist in 'pyenv' synthesized paths (e.g., '~/.pyenv/plugins') instead.
local -a pyenv_plugins
if (( $+commands[pyenv] )); then
pyenv_plugins=(${(@oM)${(f)"$(pyenv commands --no-sh 2>/dev/null)"}:#virtualenv*})
fi
if (( $pyenv_plugins[(i)virtualenv-init] <= $#pyenv_plugins )); then
# Enable 'virtualenv' with 'pyenv'.
eval "$(pyenv virtualenv-init -)"
# Optionall activate 'virtualenvwrapper' with 'pyenv' is available.
if (( $#commands[(i)pyenv-virtualenvwrapper(_lazy|)] )); then
pyenv "${${(@O)commands[(I)pyenv-virtualenvwrapper(_lazy|)]}[1]#pyenv-}"
# Optionally activate 'virtualenvwrapper' plugin when available.
if (( $pyenv_plugins[(i)virtualenvwrapper(_lazy|)] <= $#pyenv_plugins )); then
pyenv "$pyenv_plugins[(R)virtualenvwrapper(_lazy|)]"
fi
else
# Fallback to 'virtualenvwrapper' without 'pyenv' wrapper in '$path'
# and other known locations on a Debian based system.
# Fallback to 'virtualenvwrapper' without 'pyenv' wrapper if available
# in '$path' or in an alternative location on a Debian based system.
virtenv_sources=(
${(@Ov)commands[(I)virtualenvwrapper(_lazy|).sh]}
/usr/share/virtualenvwrapper/virtualenvwrapper(_lazy|).sh(OnN)
@ -114,6 +121,8 @@ if (( $+VIRTUALENVWRAPPER_VIRTUALENV || $+commands[virtualenv] )) && \
unset virtenv_sources
fi
unset pyenv_plugins
fi
# Load PIP completion.