Installation script for my dotfiles.

install-dotfiles.sh

#! /bin/sh
set -eu
IFS="$(printf '\n\t')"

# Ask what repository to clone.
printf 'Dotfiles repository URL [git@github.com:Fraetor/dotfiles.git]: '
read -r repo
if [ -z "$repo" ]
then
    repo='git@github.com:Fraetor/dotfiles.git'
fi
git clone --bare "$repo" "$HOME/.dotfiles"

# Setup git alias.
dotfile() {
    /usr/bin/git --git-dir="$HOME/.dotfiles/" --work-tree="$HOME" "$@"
}

# Ask what branch to checkout.
printf 'What branch do you want? [main]: '
read -r branch
if [ -z "$branch" ]
then
    branch='main'
fi
if [ -z "$(dotfile branch --list "$branch")" ]
then
    echo "No branch found called $branch"
    exit 1
fi

# Try checking out, and move conflicting dotfiles if they conflict.
if dotfile checkout "$branch"
then
    echo "Checked out dotfiles."
else
    echo "Backing up pre-existing files"
    # awk is getting the first column here.
    dotfile checkout 2>&1 | grep -E "\s+\." | awk '{print $1}' | xargs -I{} mv -v {} {}.backup
fi

# Does nothing if already checked out, but will error nicely if can't.
dotfile checkout "$branch"

# Other setup bits and bobs.
printf '\n*\n' >> "$HOME/.dotfiles/info/exclude"
dotfile config --local status.showUntrackedFiles no
echo "All done!"