dotfiles/install.sh

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#!/usr/bin/env bash
#
# install.sh
#
# Installs dotfiles and packages for my setup.
# Needs to be invoked from containing dotfile directory to work correctly.
#
# Will first install yay, then all my used packages (read from bootstrap/packages.txt)
#
# Finally, symlinks all dotfiles into their correct locations using stow
bootstrap_dir="${BOOTSTRAP_DIRECTORY:-./bootstrap}"
main() {
local cmd=""
local ret=0
case "$1" in
-v | --version)
printf "Personal system bootstrap script.\n\nby Marty Oehme\n\nv0.2\n"
;;
-h | --help)
printf "Usage: install [-f|--force][-v|--version][-h|--help]\n\n-f Do not ask for any confirmations but force update and installation.\n"
;;
-f | --force)
install true
;;
*)
install false
;;
esac
shift
$cmd "$@"
ret=$((ret + $?))
exit $ret
}
# takes default value (y/n), question, abort message as arguments
# automatically answers yes if unattended install
check_consent() {
if [ "$UNATTENDED" == "true" ]; then
true
else
[[ "$1" == "y" ]] && default_consent="[Y/n]" || default_consent="[y/N]"
printf "%b %b " "$2" "$default_consent"
read -r answer
if [[ "$1" == "n" ]] && [[ "$answer" != y* ]]; then
printf "%s\n" "$3"
false
elif [[ "$1" == "y" ]] && [[ "$answer" == n* ]]; then
printf "%s\n" "$3"
false
else
true
fi
fi
}
entry_question() {
check_consent n "This will take a while and install many packages and link dotfiles all over the place depending on your selections.\nYou need to be in the base directory of the dotfiles repository.\nProceed?" "Aborting." || exit
}
enable_git_hooks() {
check_consent y "Should we enable git hooks for this repository, so that installed packages are automatically compared when committing?" "Not changing repository settings." || return
git config --local core.hooksPath .githooks/
echo "Changed repository settings."
}
stow_dotfiles() {
check_consent y "Link home directory dot files?" "Not linking dotfiles." || return
# get all top level directories, remove their slashes and dots
# finally get rid of .dot-directories, since they are for the repo not for my homedir
targets="$(find . -maxdepth 1 -type d | sed -e 's/^\.\/\(.*\)$/\1/' | sed -e '/^\./d')"
# shellcheck disable=2086
# -- for some reason stow only works with unqoted var expansion
stow -R ${targets} 2> >(grep -v 'Absolute/relative mismatch between Stow dir' 1>&2)
echo "Linked dotfiles."
}
run_elevated() {
if command -v doas >/dev/null 2>&1; then
doas "$@"
elif command -v sudo >/dev/null 2>&1; then
sudo "$@"
fi
}
stow_system_packages() {
check_consent n "Link system settings files? This will require sudo access and may overwrite existing files." "Not touching system files." || return
if [ -e "/etc/pacman.conf" ]; then
check_consent n "Found an existing pacman.conf file, installation will error if it exists. Remove file?" && run_elevated rm "/etc/pacman.conf"
fi
run_elevated stow --dir="$bootstrap_dir" --target="/" -R system-packages/
echo "Linked system files."
}
install_packages() {
check_consent n "Install pre-designated packages? This will take a while, install a lot of packages and require super user privileges." "Not installing packages." || return
if ! "$UNATTENDED"; then
"$bootstrap_dir"/install_packages.sh
else
"$bootstrap_dir"/install_packages.sh -f
fi
echo "Installed packages."
}
install() {
UNATTENDED=$1
if ! "$UNATTENDED"; then
entry_question
fi
echo "====================== BEGINNING SYSTEM FILE MANAGEMENT ============================="
stow_system_packages
echo "====================== BEGINNING PACKAGE INSTALLATION ============================="
install_packages
echo "=================== BEGINNING DOTFILE MANAGEMENT =========================="
stow_dotfiles
echo "================== ENABLING GIT REPOSITORY HOOKS =========================="
enable_git_hooks
echo "====================== INSTALLATION FINISHED =============================="
exit 0
}
main "$@"