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enable creating virtualenv based on "system" python.

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*NOTE*
change first argument of python-virtualenv to path to the python
executable, not a prefix of python installation.
This commit is contained in:
Yamashita Yuu
2012-10-16 00:05:34 +09:00
parent 67fc864252
commit 83a85e0193
2 changed files with 51 additions and 47 deletions
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72
bin/python-virtualenv
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@@ -30,6 +30,24 @@ lib() {
done
}
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"
}
if [ "$1" == "--$FUNCNAME" ]; then
declare -f "$FUNCNAME"
echo "$FUNCNAME \"\$1\";"
@@ -38,24 +56,6 @@ lib() {
}
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 ${PYTHON_VIRTUALENV_VERSION}"
}
@@ -99,11 +99,11 @@ for option in "${OPTIONS[@]}"; do
esac
done
PYTHON_PREFIX="${ARGUMENTS[0]}"
if [ -z "$PYTHON_PREFIX" ]; then
PYTHON_BIN="${ARGUMENTS[0]}"
if [ -z "${PYTHON_BIN}" ]; then
usage
elif [ ! -x "${PYTHON_PREFIX}/bin/python" ]; then
echo "python-virtualenv: python not found: ${PYTHON_PREFIX}" >&2
elif [ ! -x "${PYTHON_BIN}" ]; then
echo "python-virtualenv: given python is not an executable: ${PYTHON_BIN}" >&2
exit 1
fi
@@ -112,35 +112,17 @@ if [ -z "$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
VIRTUALENV_PYTHON_BIN="${VIRTUALENV_PATH}/bin/python"
# create virtualenv
"${BOOTSTRAP_PYTHON_BIN}" "${PYTHON_VIRTUALENV_ROOT}/libexec/virtualenv.py" "${VIRTUALENV_OPTIONS[@]}" "${VIRTUALENV_PATH}"
"${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 "${BOOTSTRAP_PYTHON_BIN}")"; then
if [ ! -f "$VIRTUALENV_PYTHON_BIN" ]; then
if [ -f "${VIRTUALENV_PATH}/bin/$(basename "${PYTHON_BIN}")" ]; then
{
cd ${VIRTUALENV_PATH}/bin
ln -fs "$(basename "${BOOTSTRAP_PYTHON_BIN}")" python
ln -fs "$(basename "${PYTHON_BIN}")" python
}
fi
fi