#!/usr/bin/env bash
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#
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# Summary: Display real_prefix for a Python virtualenv version
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# Usage: pyenv virtualenv-prefix [<virtualenv>]
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#
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set -e
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[ -n "$PYENV_DEBUG" ] && set -x
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if [ -z "$PYENV_ROOT" ]; then
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PYENV_ROOT="${HOME}/.pyenv"
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fi
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if [ -n "$1" ]; then
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versions=($@)
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IFS=: PYENV_VERSION="${versions[*]}"
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export PYENV_VERSION
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else
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IFS=: versions=($(pyenv-version-name))
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fi
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real_prefix() { # virtualenv
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local version="$1"
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PYENV_VERSION="${version}" pyenv-exec python -c 'import sys;print(sys.real_prefix)' 2>/dev/null
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}
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base_prefix() { # pyvenv
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# FIXME: non-pyvenv versions also have sys.base_prefix
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local version="$1"
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PYENV_VERSION="${version}" pyenv-exec python -c 'import sys;print(sys.base_prefix)' 2>/dev/null
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}
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VIRTUALENV_PREFIX_PATHS=()
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for version in "${versions[@]}"; do
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PREFIX="$(pyenv-prefix "${version}")"
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if [ -f "${PREFIX}/bin/activate" ]; then
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VIRTUALENV_PREFIX_PATH="$(real_prefix "${version}" || base_prefix "${version}" || true)"
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if [ -d "${VIRTUALENV_PREFIX_PATH}" ]; then
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VIRTUALENV_PREFIX_PATHS=("${VIRTUALENV_PREFIX_PATHS[@]}" "$VIRTUALENV_PREFIX_PATH")
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fi
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else
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echo "pyenv: version \`${version}' is not a virtualenv" 1>&2
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exit 1
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fi
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done
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IFS=: echo "${VIRTUALENV_PREFIX_PATHS[*]}"
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