Install Liquid Prompt sur Debian

Liquid Prompt is an adaptive prompt for Bash and Zsh. This guide ease its installation on Debian.

This howto is tested on:

• Debian 8.0 Jessie
• Debian 10.0 Buster

This howto is tested with theses versions of the software:

• 1.10
• 1.11

Installation

Detect if sudo is available (“command” is used if not):

cmdProxy='command'
command type -f 'sudo' &>'/dev/null' && cmdProxy='sudo'

Set the installation path:

installPath="/usr/local/share/liquidprompt"

Environment setup

Install the software’s requirements:

${cmdProxy} apt install 'git'

Installation

Install the software:

${cmdProxy} git clone 'https://github.com/nojhan/liquidprompt.git' "${installPath}"

Enable Liquid Prompt for all users:

${cmdProxy} tee -a '/etc/bash.bashrc' <<< "
# Only load Liquid Prompt in interactive shells, not from a script or from scp
[[ \$- = *i* ]] && source '${installPath}/liquidprompt'"

Automatic upgrades

Install an weekly automatic upgrade cron task:

${cmdProxy} tee '/etc/cron.weekly/liquidprompt-update' \
  <<< "#"'!'"/bin/bash
# Update Liquid Prompt source code from Git.
test -x '/usr/bin/git' -a -d '${installPath}' && {
  pushd '${installPath}' > '/dev/null'
  /usr/bin/git pull --quiet > '/dev/null'
  popd > '/dev/null'
}"
${cmdProxy} chmod +x '/etc/cron.weekly/liquidprompt-update'

Activation for current user

Install a default configuration:

command mkdir -p "${HOME}/.config"
command cp "${installPath}/liquidpromptrc-dist" "${HOME}/.config/liquidpromptrc"

Load Liquid Prompt in current prompt:

source "${installPath}/liquidprompt"

Thanks

• Thanks to Liquid Prompt (en) developers.