Linux Installs with Debian, Ubuntu, and Alpine Support

main.sh

#!/bin/sh

if [ ! -f /etc/os-release ]; then
  echo "Unable to determine ditribution" >&2
  exit 1;
fi

. /etc/os-release
export NAME VERSION ID PRETTY_NAME

COMMON_PACKAGES="bash zsh curl man-db jq wget sudo moreutils"
COMMON_DOC_PACKAGES="bash-doc zsh-doc"
case "$ID" in
  debian || ubuntu)
    apt-get update && apt-get upgrade -y;
    apt-get install -y "$COMMON_PACKAGES" "$COMMON_DOC_PACKAGES";
    ;;
    
  alpine)
    apk update && apk upgrade;
    apk add "$COMMON_PACKAGES" shadow "$COMMON_DOC_PACKAGES" man-db-doc curl-doc jq-doc wget-doc sudo-doc moreutils-doc;
    ;;
    
  *)
    echo "Distributions not supported yet" >&2;
    exit 1;
    ;;
esac

SUDO="$(command -v sudo || echo '')"

function __install_gh_cli() {
    if command -v gh > /dev/null; then
        echo "gh is already installed. Skipping..."
        return 0
    fi

    case "$ID" in
      debian || ubuntu)
        curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | "$SUDO" sudo dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg \
          && "$SUDO" chmod go+r /usr/share/keyrings/githubcli-archive-keyring.gpg \ 
          && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | "$SUDO" tee /etc/apt/sources.list.d/github-cli.list > /dev/null \
          && "$SUDO" apt-get update \
          && "$SUDO" apt-get install gh -y
        ;;

      alpine)
        apk update && apk add github-cli;
        ;;

      *)
        echo "Distributions not supported yet" >&2;
        return 1;
        ;;
    esac
}

function __install_docker() {
    if command -v docker > /dev/null; then
        echo "docker is already installed. Skipping..."
        return 0
    fi

    echo "Installing docker..."
    curl -sSL https://get.docker.com | "$SUDO" sh
}

function __install-docker-bash-completion() {
    if [[ -f /etc/bash_completion.d/docker ]]; then
        echo "docker completions already installed. Skipping..."
        return 0
    fi

    echo "Installing docker-bash-completion..."
    "$SUDO" curl -fsSL \
      https://raw.githubusercontent.com/docker/docker-ce/master/components/cli/contrib/completion/bash/docker \
      -o /etc/bash_completion.d/docker
}

function __install-docker-zsh-completion() {
    if [[ -f /usr/share/zsh/vendor-completions/_docker ]]; then
        echo "docker completions already installed. Skipping..."
        return 0
    fi

    echo "Installing docker-zsh-completion..."
    "$SUDO" curl -fsSL \
      https://raw.githubusercontent.com/docker/docker-ce/master/components/cli/contrib/completion/zsh/_docker \
      -o /usr/share/zsh/vendor-completions/_docker
}

function __alias-docker-compose() {
   if ! command -v docker-compose >/dev/null && docker compose >/dev/null 2>&1; then
        ALIAS_CMD='alias docker-compose="docker compose"';
        eval "$ALIAS_CMD" && \
          echo "$ALIAS_CMD" | \
            tee -a ~/.bashrc | \
            tee -a ~/.zshrc >/dev/null;
    fi
}

function __install-docker-compose() {
    __alias-docker-compose

    if command -v docker-compose >/dev/null; then
        echo "docker-compose is already installed. Skipping..."
        return 0
    fi

    echo "Installing docker-compose..."
    
    COMPOSE_VERSION="$(curl -fsSL \
      -H "Accept: application/vnd.github+json" \
      https://api.github.com/repos/docker/compose/releases/latest | \
        jq .tag_name || echo -1)"
  
    if [ "$COMPOSE_VERSION" = "-1" ]; then
       echo "Failed to find latest docker compose version" >&2;
       return -1;
    fi
  
    "$SUDO" curl -fsSL \
      "https://github.com/docker/compose/releases/download/$COMPOSE_VERSION/docker-compose-$(uname -s)-$(uname -m)" \
      -o /usr/local/bin/docker-compose
    "$SUDO" chmod +x /usr/local/bin/docker-compose
}

function __install-docker-compose-bash-completions() {
    __alias-docker-compose

    if command -v bash >/dev/null; then
        echo "Setting up bash completions for docker CLI..."
        "$SUDO" mkdir -p /etc/bash_completion.d
        "$SUDO" curl -fsSL \
          https://raw.githubusercontent.com/docker/compose/$(docker-compose version --short)/contrib/completion/bash/docker-compose \
          -o /etc/bash_completion.d/docker-compose
    fi
}

function __install-docker-compose-zsh-completions-no-plugins() {
    __alias-docker-compose

    if command -v zsh >/dev/null && command -v docker-compose; then
        "$SUDO" curl -fsSL \
          https://raw.githubusercontent.com/docker/compose/$(docker-compose version --short)/contrib/completion/zsh/_docker-compose \
          -o /usr/share/zsh/vendor-completions/_docker-compose
    fi
}