mirror of
https://github.com/pyenv/pyenv-virtualenv.git
synced 2025-11-08 11:33:55 -05:00
131 lines
2.6 KiB
Bash
Executable File
131 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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PYTHON_VIRTUALENV_VERSION="20121023"
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set -E
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exec 3<&2 # preserve original stderr at fd 3
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lib() {
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parse_options() {
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OPTIONS=()
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ARGUMENTS=()
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local arg option index
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for arg in "$@"; do
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if [ "${arg:0:1}" = "-" ]; then
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if [ "${arg:1:1}" = "-" ]; then
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OPTIONS[${#OPTIONS[*]}]="${arg:2}"
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else
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index=1
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while option="${arg:$index:1}"; do
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[ -n "$option" ] || break
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OPTIONS[${#OPTIONS[*]}]="$option"
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index=$(($index+1))
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done
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fi
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else
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ARGUMENTS[${#ARGUMENTS[*]}]="$arg"
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fi
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done
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}
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resolve_link() {
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$(type -p greadlink readlink | head -1) "$1"
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}
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abs_dirname() {
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local cwd="$(pwd)"
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local path="$1"
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while [ -n "$path" ]; do
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cd "${path%/*}"
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local name="${path##*/}"
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path="$(resolve_link "$name" || true)"
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done
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pwd
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cd "$cwd"
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}
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if [ "$1" == "--$FUNCNAME" ]; then
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declare -f "$FUNCNAME"
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echo "$FUNCNAME \"\$1\";"
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exit
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fi
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}
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lib "$1"
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version() {
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echo "python-virtualenv ${PYTHON_VIRTUALENV_VERSION}"
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}
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usage() {
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{ version
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echo "usage: python-virtualenv [-v|--verbose] [VIRTUALENV_OPTIONS] python_bin virtualenv_path"
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} >&2
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if [ -z "$1" ]; then
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exit 1
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fi
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}
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unset VERBOSE
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PYTHON_VIRTUALENV_ROOT="$(abs_dirname "$0")/.."
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VIRTUALENV_OPTIONS=()
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parse_options "$@"
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for option in "${OPTIONS[@]}"; do
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case "$option" in
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"h" | "help" )
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usage without_exiting
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{ echo
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echo " -v/--verbose Verbose mode: print compilation status to stdout"
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echo
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} >&2
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exit 0
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;;
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"v" | "verbose" )
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VERBOSE=true
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;;
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"version" )
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version
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exit 0
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;;
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* )
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VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="--$option"
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;;
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esac
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done
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PYTHON_BIN="${ARGUMENTS[0]}"
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if [ -z "${PYTHON_BIN}" ]; then
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usage
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elif [ ! -x "${PYTHON_BIN}" ]; then
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echo "python-virtualenv: given python is not an executable: ${PYTHON_BIN}" >&2
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exit 1
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fi
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VIRTUALENV_PATH="${ARGUMENTS[1]}"
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if [ -z "$VIRTUALENV_PATH" ]; then
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usage
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fi
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VIRTUALENV_PYTHON_BIN="${VIRTUALENV_PATH}/bin/python"
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# create virtualenv
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VIRTUALENV="${PYTHON_VIRTUALENV_ROOT}/libexec/python-virtualenv/virtualenv.py"
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[ -f "${VIRTUALENV}" ] || VIRTUALENV="${PYTHON_VIRTUALENV_ROOT}/libexec/virtualenv.py"
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"${PYTHON_BIN}" "${VIRTUALENV}" "${VIRTUALENV_OPTIONS[@]}" "${VIRTUALENV_PATH}"
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# create symlink of `python' bound for actual executable
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if [ ! -f "$VIRTUALENV_PYTHON_BIN" ]; then
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if [ -f "${VIRTUALENV_PATH}/bin/$(basename "${PYTHON_BIN}")" ]; then
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{
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cd ${VIRTUALENV_PATH}/bin
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ln -fs "$(basename "${PYTHON_BIN}")" python
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}
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fi
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fi
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