Portable dotfiles

bootstrap.sh

#!/usr/bin/env bash
set -euo pipefail

# 1) Create ~/.bashrc.d and an options.sh
mkdir -p "${HOME}/.bashrc.d"
if [[ ! -f "${HOME}/.bashrc.d/options.sh" ]]; then
  cat << 'EOF' > "${HOME}/.bashrc.d/options.sh"
# ~/.bashrc.d/options.sh
# Add your custom environment variables, aliases, etc. here.
# Set some basic helpful options

# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth

# append to the history file, don't overwrite it
shopt -s histappend

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000

# Update the window size after each command
shopt -s checkwinsize

# Case-insensitive globbing (used in pathname expansion)
shopt -s nocaseglob

# Append to the Bash history file, rather than overwriting it
shopt -s histappend

# Autocorrect typos in path names when using `cd`
shopt -s cdspell
EOF
  echo "Created ~/.bashrc.d/options.sh"
fi

if [[ ! -f "${HOME}/.bashrc.d/path.sh" ]]; then
  cat << 'EOF' > "${HOME}/.bashrc.d/path.sh"
# Function to add directories to PATH if they exist and are not already in PATH
add_to_path_if_exists() {
    for dir in "$@"; do
        if [ -d "$dir" ] && [[ ":$PATH:" != *":$dir:"* ]]; then
            export PATH="$dir:$PATH"
        fi
    done
}

# User specific environment
if ! [[ "$PATH" =~ "$HOME/.local/bin:$HOME/bin:" ]]
then
    PATH="$HOME/.local/bin:$HOME/bin:$PATH"
fi
export PATH

# add go path
add_to_path_if_exists /usr/local/go/bin
add_to_path_if_exists "${GOPATH}/bin:${PATH}"

# add local things to path
add_to_path_if_exists /usr/local/bin
add_to_path_if_exists /usr/local/sbin
EOF
  echo "Created ~/.bashrc.d/path.sh"
fi

# 2) Install Starship and apply the bracketed-segments preset
if ! command -v starship &>/dev/null; then
  echo "Installing Starship..."
  curl -sS https://starship.rs/install.sh | sh -s -- --yes
else
  echo "Starship already installed, skipping."
fi
mkdir -p "${HOME}/.config"
starship preset bracketed-segments -o "${HOME}/.config/starship.toml"

# 3) Install Zellij
if ! command -v zellij &>/dev/null; then
  echo "Installing Zellij..."
  dir="${HOME}/.zellij/bootstrap"
  mkdir -p "$dir"
fi

case $(uname -m) in
    "x86_64"|"aarch64")
        arch=$(uname -m)
    ;;
    "arm64")
        arch="aarch64"
    ;;
    *)
        echo "Unsupported cpu arch: $(uname -m)"
        exit 2
    ;;
esac


case $(uname -s) in
    "Linux")
        sys="unknown-linux-musl"
    ;;
    "Darwin")
        sys="apple-darwin"
    ;;
    *)
        echo "Unsupported system: $(uname -s)"
        exit 2
    ;;
esac

url="https://github.com/zellij-org/zellij/releases/latest/download/zellij-$arch-$sys.tar.gz"
curl --location "$url" | tar -C "$dir" -xz
if [[ $? -ne 0 ]]
then
    echo
    echo "Extracting binary failed, cannot launch zellij :("
    echo "One probable cause is that a new release just happened and the binary is currently building."
    echo "Maybe try again later? :)"
    exit 1
fi
sudo cp "${HOME}/.zellij/bootstrap/zellij" /usr/local/bin/zellij



# 4) Backup and update ~/.bashrc
BASHRC="${HOME}/.bashrc"
BACKUP="${HOME}/.bashrc.bak.$(date +%Y%m%d%H%M%S)"
cp -a "$BASHRC" "$BACKUP"
echo "Backed up existing .bashrc to $BACKUP"

# Ensure Starship init is at the end
if ! grep -q 'starship init bash' "$BASHRC"; then
  {
    echo
    echo '# Initialize Starship prompt'
    echo 'eval "$(starship init bash)"'
  } >> "$BASHRC"

  echo "Appended Starship init to $BASHRC"
fi


# 5) Fetch SSH keys from GitHub and populate authorized_keys
SSH_DIR="${HOME}/.ssh"
mkdir -p "$SSH_DIR"
chmod 700 "$SSH_DIR"
curl -fSsL "https://github.com/alexlovelltroy.keys" >> "${SSH_DIR}/authorized_keys"
chmod 600 "${SSH_DIR}/authorized_keys"
echo "Fetched GitHub SSH keys into ~/.ssh/authorized_keys"

echo "Bootstrap complete! Please open a new shell or run 'source ~/.bashrc'."