mirror of
https://github.com/pyenv/pyenv-virtualenv.git
synced 2025-11-11 13:03:52 -05:00
153 lines
3.4 KiB
Bash
Executable File
153 lines
3.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Summary: Activate virtual environment
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#
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# Usage: pyenv activate <virtualenv>
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# pyenv activate --unset
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#
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# Activate a Python virtualenv environment in current shell.
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# This acts almost as same as `pyenv shell`, but this invokes the `activate`
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# script in your shell.
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#
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# <virtualenv> should be a string matching a Python version known to pyenv.
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set -e
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[ -n "$PYENV_DEBUG" ] && set -x
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unset NOERROR
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unset VERBOSE
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while [ $# -gt 0 ]; do
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case "$1" in
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"--complete" )
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# Provide pyenv completions
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echo --unset
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exec pyenv-virtualenvs --bare
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;;
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"--no-error" )
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NOERROR=1
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;;
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"--unset" )
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echo "pyenv deactivate"
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exit
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;;
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"--verbose" )
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VERBOSE=1
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;;
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* )
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break
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;;
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esac
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shift 1
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done
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no_shell=
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versions=("$@")
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if [ -z "${versions}" ]; then
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no_shell=1
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OLDIFS="$IFS"
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IFS=: versions=($(pyenv-version-name))
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IFS="$OLDIFS"
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fi
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if [ -z "${PYENV_VIRTUALENV_INIT}" ]; then
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# Backward compatibility issue
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# https://github.com/yyuu/pyenv-virtualenv/issues/26
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no_shell=
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fi
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if [ "${#versions[@]}" -gt 1 ]; then
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[ -n "$NOERROR" ] || echo "pyenv-virtualenv: cannot activate multiple versions at once: ${versions[@]}" 1>&2
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echo "false"
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exit 1
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fi
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if pyenv-prefix "${versions}" 1>/dev/null 2>&1; then
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if ! pyenv-virtualenv-prefix "${versions}" 1>/dev/null 2>&1; then
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[ -n "$NOERROR" ] || echo "pyenv-virtualenv: version \`${versions}' is not a virtualenv" 1>&2
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echo "false"
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exit 1
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fi
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else
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version="$(pyenv-version-name)"
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if [[ "${versions}" == "root" ]]; then
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versions="${version%/envs/*}"
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else
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versions="${version%/envs/*}/envs/${versions}"
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fi
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if ! pyenv-virtualenv-prefix "${versions}" 1>/dev/null 2>&1; then
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[ -n "$NOERROR" ] || echo "pyenv-virtualenv: version \`${versions}' is not an environment of anaconda/miniconda" 1>&2
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echo "false"
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exit 1
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fi
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fi
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shell="${PYENV_SHELL:-${SHELL##*/}}"
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prefix="$(pyenv-prefix "${versions}")"
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unset conda_env
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if [ -f "${prefix}/bin/conda" ]; then
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if [[ "$shell" != "bash" ]] && [[ "$shell" != "zsh" ]]; then
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[ -n "$NOERROR" ] || echo "pyenv-virtualenv: Only bash and zsh are supported by Anaconda/Miniconda" 1>&2
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echo "false"
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exit 1
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fi
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if [[ "${prefix}" != "${prefix%/envs/*}" ]]; then
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conda_env="${prefix##*/envs/}"
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else
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conda_env="root"
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fi
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fi
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# Display setup instruction, if pyenv-virtualenv has not been initialized.
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# if 'pyenv virtualenv-init -' is not found in "$profile"
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if [ -z "$PYENV_VIRTUALENV_INIT" ]; then
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pyenv-virtualenv-init >&2 || true
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fi
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if [ -n "$VERBOSE" ]; then
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echo "pyenv-virtualenv: activate ${versions}" 1>&2
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fi
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if [ -z "$no_shell" ]; then
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echo "pyenv shell \"${versions}\";"
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# shell version set in pyenv-sh-activate should be unset
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# https://github.com/yyuu/pyenv-virtualenv/issues/61
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case "$shell" in
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fish )
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echo "setenv PYENV_ACTIVATE_SHELL 1;"
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;;
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* )
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echo "export PYENV_ACTIVATE_SHELL=1;"
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;;
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esac
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fi
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if [ -n "${conda_env}" ]; then
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# anaconda/miniconda
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cat <<EOS
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unset PYENV_DEACTIVATE;
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export PYENV_ACTIVATE="${prefix}";
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. "${prefix%/envs/*}/bin/activate" "${conda_env}";
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EOS
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else
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# virtualenv/pyvenv
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case "$shell" in
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fish )
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cat <<EOS
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set -e PYENV_DEACTIVATE;
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setenv PYENV_ACTIVATE "${prefix}";
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. "${prefix}/bin/activate.fish";
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EOS
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;;
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* )
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cat <<EOS
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unset PYENV_DEACTIVATE;
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export PYENV_ACTIVATE="${prefix}";
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. "${prefix}/bin/activate";
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EOS
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;;
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esac
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fi
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