- $python -m venv "$install_args" "$lf_venv" || return 1
- "$lf_venv/bin/pip" install --upgrade --quiet pip virtualenv || return 1
+
+ # Precedence:
+ # - Re-use venv:
+ # 1. --venv-file <path/to/file> as lf_venv
+ # 2. default: "/tmp/.os_lf_venv"
+ # - Create new venv when 1. and 2. is absent
+ if [[ -f "$venv_file" ]]; then
+ lf_venv=$(cat "$venv_file")
+ echo "${FUNCNAME[0]}(): INFO: Reuse venv:$lf_venv from" \
+ "file:$venv_file"
+ elif [[ ! -f "$venv_file" ]]; then
+ if [[ -n "$install_args" ]]; then
+ $python -m venv "$install_args" "$lf_venv" || return 1
+ else
+ $python -m venv "$lf_venv" || return 1
+ fi
+ echo "${FUNCNAME[0]}(): INFO: Creating $python venv at $lf_venv"
+ echo "$lf_venv" > "$venv_file"
+ echo "${FUNCNAME[0]}(): INFO: Save venv in file: $venv_file"
+ fi
+
+ "$lf_venv/bin/python3" -m pip install --upgrade --quiet pip \
+ virtualenv || return 1