mirror of
https://github.com/pyenv/pyenv.git
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87 lines
2.5 KiB
Bash
Executable file
87 lines
2.5 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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# Summary: Run an executable with the selected Python version
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#
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# Usage: pyenv exec [-N|--environment] <command> [arg1 arg2...]
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#
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# -N Set PYTHONHOME and LD_LIBRARY_PATH envvars for the running command.
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# This allows to run programs that embed Python without using rpath or
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# exact library path.
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# WARNING! For the running command and its child processes, this will
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# break linkage for programs that expect to be linked to system libpython!
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# This option is Linux only.
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#
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# Runs an executable by first preparing PATH so that the selected Python
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# version's `bin' directory is at the front.
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#
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# For example, if the currently selected Python version is 2.7.6:
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# pyenv exec pip install -r requirements.txt
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#
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# is equivalent to:
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# PATH="$PYENV_ROOT/versions/2.7.6/bin:$PATH" pip install -r requirements.txt
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set -e
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[ -n "$PYENV_DEBUG" ] && set -x
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# Provide pyenv completions
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if [ "$1" = "--complete" ]; then
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echo --environment
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exec pyenv-shims --short
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fi
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unset MODIFY_ENV
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if [ "$1" = "-N" ] || [ "$1" = "--environment" ]; then
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MODIFY_ENV=true
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shift
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fi
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PYENV_VERSION="$(pyenv-version-name -f)"
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PYENV_COMMAND="$1"
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if [ -z "$PYENV_COMMAND" ]; then
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pyenv-help --usage exec >&2
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exit 1
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fi
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if [[ -n $_PYENV_SHIM_PATH ]]; then
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PROGRAM="$(echo "$PYENV_COMMAND" | tr a-z- A-Z_ | sed 's/[^A-Z0-9_]/_/g')"
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NR_PYENV_SHIM_PATHS_PROGRAM="_PYENV_SHIM_PATHS_${PROGRAM}"
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export -- "$NR_PYENV_SHIM_PATHS_PROGRAM=$_PYENV_SHIM_PATH${!NR_PYENV_SHIM_PATHS_PROGRAM:+:${!NR_PYENV_SHIM_PATHS_PROGRAM}}"
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unset PROGRAM NR_PYENV_SHIM_PATHS_PROGRAM
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unset _PYENV_SHIM_PATH
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fi
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PYENV_COMMAND_PATH="$(pyenv-which "$PYENV_COMMAND")"
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PYENV_BIN_PATH="${PYENV_COMMAND_PATH%/*}"
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export PYENV_VERSION
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OLDIFS="$IFS"
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IFS=$'\n' scripts=(`pyenv-hooks exec`)
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IFS="$OLDIFS"
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for script in "${scripts[@]}"; do
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source "$script"
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done
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shift 1
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if [ "${PYENV_BIN_PATH#${PYENV_ROOT}}" != "${PYENV_BIN_PATH}" ]; then
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# Only add to $PATH for non-system version.
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export PATH="${PYENV_BIN_PATH}:${PATH}"
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fi
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if [ -n "$MODIFY_ENV" ] && [ "$(uname -s)" = Linux ]; then
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# Check if multiple Python versions are selected
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VERSIONS=$(pyenv-prefix)
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if [[ "$VERSIONS" == *:* ]]; then
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echo 'Warning: multiple Python versions are selected' >&2
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VERSION="${VERSIONS%%:*}"
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echo "Using the first one available (${VERSION##*/})" >&2
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else
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VERSION="$VERSIONS"
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fi
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# Assign the correct version of PYTHONHOME
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export PYTHONHOME="$VERSION"
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export LD_LIBRARY_PATH="${PYTHONHOME}/lib${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}"
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fi
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exec "$PYENV_COMMAND_PATH" "$@"
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