mirror of
https://github.com/pyenv/pyenv-virtualenv.git
synced 2025-11-08 11:33:55 -05:00
147 lines
3.3 KiB
Bash
Executable File
147 lines
3.3 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
|
|
PYTHON_VIRTUALENV_VERSION="20120927"
|
|
|
|
set -E
|
|
exec 3<&2 # preserve original stderr at fd 3
|
|
|
|
|
|
lib() {
|
|
parse_options() {
|
|
OPTIONS=()
|
|
ARGUMENTS=()
|
|
local arg option index
|
|
|
|
for arg in "$@"; do
|
|
if [ "${arg:0:1}" = "-" ]; then
|
|
if [ "${arg:1:1}" = "-" ]; then
|
|
OPTIONS[${#OPTIONS[*]}]="${arg:2}"
|
|
else
|
|
index=1
|
|
while option="${arg:$index:1}"; do
|
|
[ -n "$option" ] || break
|
|
OPTIONS[${#OPTIONS[*]}]="$option"
|
|
index=$(($index+1))
|
|
done
|
|
fi
|
|
else
|
|
ARGUMENTS[${#ARGUMENTS[*]}]="$arg"
|
|
fi
|
|
done
|
|
}
|
|
|
|
if [ "$1" == "--$FUNCNAME" ]; then
|
|
declare -f "$FUNCNAME"
|
|
echo "$FUNCNAME \"\$1\";"
|
|
exit
|
|
fi
|
|
}
|
|
lib "$1"
|
|
|
|
resolve_link() {
|
|
$(type -p greadlink readlink | head -1) "$1"
|
|
}
|
|
|
|
abs_dirname() {
|
|
local cwd="$(pwd)"
|
|
local path="$1"
|
|
|
|
while [ -n "$path" ]; do
|
|
cd "${path%/*}"
|
|
local name="${path##*/}"
|
|
path="$(resolve_link "$name" || true)"
|
|
done
|
|
|
|
pwd
|
|
cd "$cwd"
|
|
}
|
|
|
|
version() {
|
|
echo "python-virtualenv ${PYTHON_VIRTUALENV_VERSION}"
|
|
}
|
|
|
|
usage() {
|
|
{ version
|
|
echo "usage: python-virtualenv [-v|--verbose] [VIRTUALENV_OPTIONS] python_prefix virtualenv_path"
|
|
} >&2
|
|
|
|
if [ -z "$1" ]; then
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
unset VERBOSE
|
|
PYTHON_VIRTUALENV_ROOT="$(abs_dirname "$0")/.."
|
|
VIRTUALENV_OPTIONS=()
|
|
|
|
parse_options "$@"
|
|
|
|
for option in "${OPTIONS[@]}"; do
|
|
case "$option" in
|
|
"h" | "help" )
|
|
usage without_exiting
|
|
{ echo
|
|
echo " -v/--verbose Verbose mode: print compilation status to stdout"
|
|
echo
|
|
} >&2
|
|
exit 0
|
|
;;
|
|
"v" | "verbose" )
|
|
VERBOSE=true
|
|
;;
|
|
"version" )
|
|
version
|
|
exit 0
|
|
;;
|
|
* )
|
|
VIRTUALENV_OPTIONS[${#VIRTUALENV_OPTIONS[*]}]="--$option"
|
|
;;
|
|
esac
|
|
done
|
|
|
|
PYTHON_PREFIX="${ARGUMENTS[0]}"
|
|
if [ -z "$PYTHON_PREFIX" ]; then
|
|
usage
|
|
elif [ ! -x "${PYTHON_PREFIX}/bin/python" ]; then
|
|
echo "python-virtualenv: python not found: ${PYTHON_PREFIX}" >&2
|
|
exit 1
|
|
fi
|
|
|
|
VIRTUALENV_PATH="${ARGUMENTS[1]}"
|
|
if [ -z "$VIRTUALENV_PATH" ]; then
|
|
usage
|
|
fi
|
|
|
|
BOOTSTRAP_PYTHON_BIN="${PYTHON_PREFIX}/bin/python"
|
|
PYTHON_BIN="${VIRTUALENV_PATH}/bin/python"
|
|
|
|
# find canonical name of python executable.
|
|
# virtualenv will create "bin/python" executable as same name as its bootstraped python.
|
|
if test -L "${BOOTSTRAP_PYTHON_BIN}"; then
|
|
while test -L "${BOOTSTRAP_PYTHON_BIN}"; do # retrieve symlinks
|
|
BOOTSTRAP_PYTHON_BIN="$(dirname "${BOOTSTRAP_PYTHON_BIN}")/$(resolve_link "${BOOTSTRAP_PYTHON_BIN}")"
|
|
done
|
|
else
|
|
# python 2.6 and older don't have "bin/python" as symlink.
|
|
# so we must traverse files like "bin/python*" to obtain canonical name.
|
|
for python in ${PYTHON_PREFIX}/bin/python*; do
|
|
if ( basename "$python" | grep '^python[0-9][0-9]*\.[0-9][0-9]*$' && cmp "$BOOTSTRAP_PYTHON_BIN" "$python" ) >/dev/null; then
|
|
BOOTSTRAP_PYTHON_BIN="${python}"
|
|
break
|
|
fi
|
|
done
|
|
fi
|
|
|
|
# create virtualenv
|
|
"${BOOTSTRAP_PYTHON_BIN}" "${PYTHON_VIRTUALENV_ROOT}/libexec/virtualenv.py" "${VIRTUALENV_OPTIONS[@]}" "${VIRTUALENV_PATH}"
|
|
|
|
# create symlink of `python' bound for actual executable
|
|
if [ ! -f "$PYTHON_BIN" ]; then
|
|
if test -f "${VIRTUALENV_PATH}/bin/$(basename "${BOOTSTRAP_PYTHON_BIN}")"; then
|
|
{
|
|
cd ${VIRTUALENV_PATH}/bin
|
|
ln -fs "$(basename "${BOOTSTRAP_PYTHON_BIN}")" python
|
|
}
|
|
fi
|
|
fi
|