hild1-install

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

DEBUG=3 # (0:NONE, 1:ERROR, 2:WARN, 3:INFO)
RED='\033[0;31m'
GREEN='\033[0;32m'
BLUE='\033[1;34m'
YELLOW='\033[1;33m'
NC='\033[0m'
function INFO { if [ $DEBUG -gt 2 ]; then echo -e >&2 "$GREEN[${FUNCNAME[0]}] $1$NC"; fi  }
function WARN { if [ $DEBUG -gt 1 ]; then echo -e >&2 "$YELLOW[${FUNCNAME[0]}] $1$NC"; fi }
function ERROR { if [ $DEBUG -gt 0 ]; then echo -e >&2 "$RED[${FUNCNAME[0]}] $1$NC"; fi }


if [ "x" != "x${1:-}" ]; then
  INFO "Source :${BASH_SOURCE[0]}."
  if ! (grep --silent "${1:-}" "$HOME/.ssh/config" 2>/dev/null); then
    ERROR "Failed to find host '${1:-}', exiting."
    exit
  fi
  INFO "Will copy self to '${1:-}:/tmp/hild1-install' and execute"
  #base64 "${BASH_SOURCE[0]}" | ssh  "${1:-}" 'base64 -d > /tmp/hild1-install; chmod +x /tmp/hild1-install; /tmp/hild1-install;'
  scp "${BASH_SOURCE[0]}" "${1:-}:/tmp/hild1-install"
  ssh -t "${1:-}" "chmod +x /tmp/hild1-install; /tmp/hild1-install;";
  exit
fi

INFO "No hostname specified. Executing on localhost."

function ask {
  while true; do
    echo -e "$BLUE[QUESTION] $1$NC"
    read -r ANSWER
    case "$ANSWER" in
      1) $2; return ;;
      2) $3;;
      3) return ;;
      *) echo "$ANSWER is not a valid option." ;;
    esac
  done
}

function check_github_key {
  #curl 'https://api.github.com/users/kagee/keys'
  echo -n ""
}

TO_INSTALL=""
function install_all_programs {
  if [ "x" != "x$TO_INSTALL" ]; then
    INFO "Installing $TO_INSTALL"
    sudo apt-get install $TO_INSTALL
  else
    INFO "Nothing to install"
  fi
}

function write_default {
  INFO "Writing new $1"
  case "$1" in
    ".vimrc") echo "ZmlsZXR5cGUgcGx1Z2luIGluZGVudCBvbgpzZXQgdGFic3RvcD00IHNoaWZ0d2lkdGg9NCBleHBhbmR0YWIKYXV0b2NtZCBGaWxldHlwZSBzaCBzZXRsb2NhbCBleHBhbmR0YWIgdGFic3RvcD0yIHNoaWZ0d2lkdGg9MiBzb2Z0dGFic3RvcD0yCnNldCBsaXN0Y2hhcnM9bmJzcDrKrSx0YWI6Pi0sZXh0ZW5kczrCuyxwcmVjZWRlczrCqyx0cmFpbDrigKIgbGlzdAo=" |\
      base64 -d > "$HOME/.vimrc"; return;; # 963cb694c68572353d67ddc60eeb1de1
    ".pushover.conf") echo "Creating new ~/.pushover.conf. Please enter values:"; read -p 'APP_TOKEN: ' AT; read -p 'USER_KEY: ' UK; echo -e "APP_TOKEN=\"$AT\"\nUSER_KEY=\"$UK\"" > "$HOME/.pushover.conf";;
    *) ERROR "Missing argument to write";;
  esac
}

function check_pushover {
  if [ -f "$HOME/.pushover.conf" ]; then
    if (echo "9e1cb080a7a9fd23d89aaf30577d3ffa $HOME/.pushover.conf" | md5sum -c --status); then
       INFO "Default .pushover.conf already installed"
     else
       ask "A .pushover.conf is already installed. 1:Overwrite 2:View 3:Skip" "write_default .pushover.conf" "less $HOME/.vimrc"
      return
    fi
  else
    write_default .pushover.conf
  fi
}

function check_vimrc {
  if [ -f "$HOME/.vimrc" ]; then
    if (echo "963cb694c68572353d67ddc60eeb1de1 $HOME/.vimrc" | md5sum -c --status); then
       INFO "Default .vimrc already installed"
     else
       ask "A .vimrc is already installed. 1:Overwrite 2:View 3:Skip" "write_default .vimrc" "less $HOME/.vimrc"
      return
    fi
  else
    write_default .vimrc
  fi
}

function add_sh_line {
  for SHL in bash zsh; do
    if (grep --silent "$1" "$HOME/.${SHL}rc"); then
      INFO "Line probably installed in $HOME/.${SHL}rc, skipping:"
      echo -e "\t ${*:2}"
    else
      INFO "Appending line to $HOME/.${SHL}rc:"
      echo "${*:2}" | tee -a "$HOME/.${SHL}rc"
    fi
  done
}

function check_random_rantings {
  mkdir -p "$HOME/bin"
  if [ -d "$HOME/bin/random-rantings" ]; then
    INFO "random-rantings is checked out, pulling"
    git -C "$HOME/bin/random-rantings" pull --rebase
  else
    ask "random-rantings is not checked out. 1:check out 3:skip" "git -C $HOME/bin clone git@github.com:Kagee/random-rantings.git"
  fi
  # Since we are not installing using a interactive shell, we must cheat"
  if (grep --silent "bin/random-rantings" "$HOME/.$(basename "$SHELL")rc"); then
    # shellcheck disable=SC2016
    INFO 'random-rantings is installed in $PATH'
  else
    # shellcheck disable=SC2016
    ask 'random-rantings in not in $PATH. 1:Add (bash+zsh) 3:Skip' "add_sh_line random-rantings export PATH=\"\$PATH:$HOME/bin/random-rantings\""
  fi

}

function check_installed_program {
  if (command -v "$1" >/dev/null); then
    INFO "$1 is already installed"
  else
    ask "$1 is not installed. 1:Install 3:Don't install" "eval TO_INSTALL=\"$TO_INSTALL $1\""
  fi
}

KEYS_TO_INSTALL=""
function install_authorized_keys {
  if [ "x" != "x$KEYS_TO_INSTALL" ]; then
    INFO "Installing $KEYS_TO_INSTALL"
    echo -e "$KEYS_TO_INSTALL" | while read -r KEY; do
      echo "$KEY" >> "$HOME/.ssh/authorized_keys";
    done
  else
    INFO "Nothing to install"
  fi
}

function check_authorized_keys {
  mkdir -p "$HOME/.ssh"
  #touch "$HOME/.ssh/authorized_keys"
  KEYMAT=$(echo "$1" | cut -d' ' -f1,2);
  COMMENT=$(echo "$1" | cut -d' ' -f3);
  if (grep --silent "$KEYMAT" "$HOME/.ssh/authorized_keys" 2>/dev/null); then
    INFO "SSH key $COMMENT is installed"
  else
    ask "SSH key $COMMENT is not installed. 1:Install 3:Skip" "eval KEYS_TO_INSTALL=\"$KEYS_TO_INSTALL\n$1\""
  fi
}

function check_ssh_key {
  if [ ! -f "$HOME/.ssh/id_ed25519" ] || [ ! -f "$HOME/.ssh/id_ed25519.pub" ]; then
    ask "No ED25519 key exists. 1:create 3: skip" "ssh-keygen -t ed25519"
  else
    INFO "ED25519 SSH key found"
  fi
}

#check_ssh
check_ssh_key
check_authorized_keys "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIri4TfiyNPfA5zCdrbafnoZAQat/QPhKkuIvVy/YmXA hildenae@nc-01539"
check_authorized_keys "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPyixZaDt23gfJlcAeQIjNAURaWVs6J7Q9xWK9NowNnd hildenae@grune.hild1.no"
check_authorized_keys "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBHyP8Q0k2l0mtumAIlwmGAilUQTCGuntxBfTiiOnGZQI5PoNk6WpdOHwqlJZndp65Wl4w5kUyQi9dXzX/K6K+sGTtLHn3ftU92ZqCPEBe5Z0gZPRAvbpCKFVSx7HqT5jMg== JuiceSSH@6P"
install_authorized_keys

for PROGRAM in git vim htop zsh ncdu; do 
  check_installed_program $PROGRAM
done
install_all_programs

#check_github_key
check_random_rantings
check_pushover
check_vimrc