Updates Starship to Latest Version

update_starship.sh

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

post_install() {
  # Checks whether user's shell configuration needs adjustment for Spaceship
  # This function does not do anything when user has already activated the
  # necessary configuration.

  echo "Checking shell configuration"

  if [[ "${SHELL}" =~ "bash" && $(grep -c "starship init" "${HOME}/.bashrc") -eq 0 ]]; then
    # shellcheck disable=SC2016
    echo -n 'eval "$(starship init $0)"' >> "${HOME}/.bashrc"
    echo "Bash configured."
    return
  fi

  if [[ "${SHELL}" =~ "zsh" && $(grep -c "starship init" "${HOME}/.zshrc") -eq 0 ]]; then
    # shellcheck disable=SC2016
    echo -n 'eval "$(starship init $0)"' >> "${HOME}/.zshrc"
    echo "ZSH configured."
    return
  fi

  if [[ "${SHELL}" =~ "fish" && $(grep -c "starship init" "${HOME}/.config/fish/config.fish") -eq 0 ]]; then
    echo -n 'eval (starship init fish)' >> "${HOME}/.config/fish/config.fish"
    echo "Fish configured."
    return
  fi

  echo "Shell configuration OK."
}

API_URL="https://api.github.com"
REPO="starship/starship"

# Save release tarball into temporary location
FILENAME=$(mktemp starship.XXX.tar.gz)

# Save the binary here. On certain systems you might need to run this script
# as root user to be able to write to this location.
PREFIX="/usr/local/bin"

# Operating system to fetch the binary for.
OS=$(uname -s)

echo "Downloading latest release for ${REPO}"
curl -sSL -H "Accept: application/vnd.github.v3+json" -X GET "${API_URL}/repos/${REPO}/releases/latest" \
  | jq ".assets[].browser_download_url" \
  | grep -i "${OS}" \
  | xargs wget -qO "${FILENAME}"

tar xzf "${FILENAME}" -C "${PREFIX}" --strip-components=1
rm -f "${FILENAME}"

VERSION=$(starship --version)

echo "Installed ${VERSION}."

post_install