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https://github.com/certbot/certbot.git
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194 lines
6.9 KiB
Bash
Executable File
194 lines
6.9 KiB
Bash
Executable File
#!/bin/sh -e
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#
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# A script to run the latest release version of the Let's Encrypt in a
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# virtual environment
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#
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# Installs and updates the letencrypt virtualenv, and runs letsencrypt
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# using that virtual environment. This allows the client to function decently
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# without requiring specific versions of its dependencies from the operating
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# system.
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# Note: you can set XDG_DATA_HOME or VENV_PATH before running this script,
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# if you want to change where the virtual environment will be installed
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XDG_DATA_HOME=${XDG_DATA_HOME:-~/.local/share}
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VENV_NAME="letsencrypt"
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VENV_PATH=${VENV_PATH:-"$XDG_DATA_HOME/$VENV_NAME"}
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VENV_BIN=${VENV_PATH}/bin
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# This script takes the same arguments as the main letsencrypt program, but it
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# additionally responds to --verbose (more output) and --debug (allow support
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# for experimental platforms)
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for arg in "$@" ; do
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# This first clause is redundant with the third, but hedging on portability
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if [ "$arg" = "-v" ] || [ "$arg" = "--verbose" ] || echo "$arg" | grep -E -- "-v+$" ; then
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VERBOSE=1
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elif [ "$arg" = "--debug" ] ; then
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DEBUG=1
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fi
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done
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# letsencrypt-auto needs root access to bootstrap OS dependencies, and
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# letsencrypt itself needs root access for almost all modes of operation
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# The "normal" case is that sudo is used for the steps that need root, but
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# this script *can* be run as root (not recommended), or fall back to using
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# `su`
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if test "`id -u`" -ne "0" ; then
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if command -v sudo 1>/dev/null 2>&1; then
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SUDO=sudo
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else
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echo \"sudo\" is not available, will use \"su\" for installation steps...
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# Because the parameters in `su -c` has to be a string,
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# we need properly escape it
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su_sudo() {
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args=""
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# This `while` loop iterates over all parameters given to this function.
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# For each parameter, all `'` will be replace by `'"'"'`, and the escaped string
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# will be wrap in a pair of `'`, then append to `$args` string
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# For example, `echo "It's only 1\$\!"` will be escaped to:
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# 'echo' 'It'"'"'s only 1$!'
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# │ │└┼┘│
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# │ │ │ └── `'s only 1$!'` the literal string
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# │ │ └── `\"'\"` is a single quote (as a string)
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# │ └── `'It'`, to be concatenated with the strings followed it
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# └── `echo` wrapped in a pair of `'`, it's totally fine for the shell command itself
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while [ $# -ne 0 ]; do
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args="$args'$(printf "%s" "$1" | sed -e "s/'/'\"'\"'/g")' "
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shift
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done
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su root -c "$args"
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}
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SUDO=su_sudo
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fi
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else
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SUDO=
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fi
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ExperimentalBootstrap() {
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# Arguments: Platform name, boostrap script name, SUDO command (iff needed)
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if [ "$DEBUG" = 1 ] ; then
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if [ "$2" != "" ] ; then
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echo "Bootstrapping dependencies for $1..."
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if [ "$3" != "" ] ; then
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"$3" "$BOOTSTRAP/$2"
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else
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"$BOOTSTRAP/$2"
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fi
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fi
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else
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echo "WARNING: $1 support is very experimental at present..."
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echo "if you would like to work on improving it, please ensure you have backups"
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echo "and then run this script again with the --debug flag!"
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exit 1
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fi
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}
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DeterminePythonVersion() {
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if command -v python2.7 > /dev/null ; then
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export LE_PYTHON=${LE_PYTHON:-python2.7}
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elif command -v python27 > /dev/null ; then
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export LE_PYTHON=${LE_PYTHON:-python27}
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elif command -v python2 > /dev/null ; then
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export LE_PYTHON=${LE_PYTHON:-python2}
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elif command -v python > /dev/null ; then
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export LE_PYTHON=${LE_PYTHON:-python}
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else
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echo "Cannot find any Pythons... please install one!"
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fi
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PYVER=`$LE_PYTHON --version 2>&1 | cut -d" " -f 2 | cut -d. -f1,2 | sed 's/\.//'`
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if [ $PYVER -eq 26 ] ; then
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ExperimentalBootstrap "Python 2.6"
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elif [ $PYVER -lt 26 ] ; then
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echo "You have an ancient version of Python entombed in your operating system..."
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echo "This isn't going to work."
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exit 1
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fi
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}
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# virtualenv call is not idempotent: it overwrites pip upgraded in
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# later steps, causing "ImportError: cannot import name unpack_url"
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if [ ! -d $VENV_PATH ]
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then
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BOOTSTRAP=`dirname $0`/bootstrap
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if [ ! -f $BOOTSTRAP/debian.sh ] ; then
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echo "Cannot find the letsencrypt bootstrap scripts in $BOOTSTRAP"
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exit 1
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fi
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if [ -f /etc/debian_version ] ; then
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echo "Bootstrapping dependencies for Debian-based OSes..."
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$SUDO $BOOTSTRAP/_deb_common.sh
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elif [ -f /etc/redhat-release ] ; then
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echo "Bootstrapping dependencies for RedHat-based OSes..."
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$SUDO $BOOTSTRAP/_rpm_common.sh
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elif `grep -q openSUSE /etc/os-release` ; then
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echo "Bootstrapping dependencies for openSUSE-based OSes..."
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$SUDO $BOOTSTRAP/_suse_common.sh
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elif [ -f /etc/arch-release ] ; then
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echo "Bootstrapping dependencies for Archlinux..."
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$SUDO $BOOTSTRAP/archlinux.sh
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elif [ -f /etc/manjaro-release ] ; then
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ExperimentalBootstrap "Manjaro Linux" manjaro.sh "$SUDO"
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elif [ -f /etc/gentoo-release ] ; then
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ExperimentalBootstrap "Gentoo" _gentoo_common.sh "$SUDO"
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elif uname | grep -iq FreeBSD ; then
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ExperimentalBootstrap "FreeBSD" freebsd.sh "$SUDO"
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elif uname | grep -iq Darwin ; then
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ExperimentalBootstrap "Mac OS X" mac.sh
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elif grep -iq "Amazon Linux" /etc/issue ; then
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ExperimentalBootstrap "Amazon Linux" _rpm_common.sh
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else
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echo "Sorry, I don't know how to bootstrap Let's Encrypt on your operating system!"
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echo
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echo "You will need to bootstrap, configure virtualenv, and run a pip install manually"
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echo "Please see https://letsencrypt.readthedocs.org/en/latest/contributing.html#prerequisites"
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echo "for more info"
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fi
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DeterminePythonVersion
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echo "Creating virtual environment..."
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if [ "$VERBOSE" = 1 ] ; then
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virtualenv --no-site-packages --python $LE_PYTHON $VENV_PATH
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else
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virtualenv --no-site-packages --python $LE_PYTHON $VENV_PATH > /dev/null
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fi
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else
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DeterminePythonVersion
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fi
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printf "Updating letsencrypt and virtual environment dependencies..."
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if [ "$VERBOSE" = 1 ] ; then
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echo
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$VENV_BIN/pip install -U setuptools
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$VENV_BIN/pip install -U pip
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$VENV_BIN/pip install -r py26reqs.txt -U letsencrypt letsencrypt-apache
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# nginx is buggy / disabled for now, but upgrade it if the user has
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# installed it manually
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if $VENV_BIN/pip freeze | grep -q letsencrypt-nginx ; then
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$VENV_BIN/pip install -U letsencrypt letsencrypt-nginx
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fi
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else
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$VENV_BIN/pip install -U setuptools > /dev/null
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printf .
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$VENV_BIN/pip install -U pip > /dev/null
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printf .
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# nginx is buggy / disabled for now...
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$VENV_BIN/pip install -r py26reqs.txt > /dev/null
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printf .
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$VENV_BIN/pip install -U letsencrypt > /dev/null
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printf .
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$VENV_BIN/pip install -U letsencrypt-apache > /dev/null
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if $VENV_BIN/pip freeze | grep -q letsencrypt-nginx ; then
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printf .
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$VENV_BIN/pip install -U letsencrypt-nginx > /dev/null
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fi
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echo
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fi
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# Explain what's about to happen, for the benefit of those getting sudo
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# password prompts...
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echo "Running with virtualenv:" $SUDO $VENV_BIN/letsencrypt "$@"
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$SUDO $VENV_BIN/letsencrypt "$@"
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