Brew-Cask-Upgrade: Check and upgrade your app installed from caskroom automatically.

brew-cask-upgrade.sh

#! /usr/bin/env bash
# brew-cask-upgrade.sh: "Brew-Cask-Upgrade"
# Author: RJ Hsiao <rj-at-rjhsiao.me>
# Url: https://gist.github.com/RJHsiao/d4ee0ff671e76b02d9e5706294d3597c
# License: GPLv3
# Usage: sh brew-cask-upgrade.sh [options]

readonly NAME="Brew-Cask-Upgrade"
readonly VERSION="1.1.5"
readonly URL="https://gist.github.com/RJHsiao/d4ee0ff671e76b02d9e5706294d3597c"
BASENAME=$(basename "$0")
readonly BASENAME
readonly USAGE="$NAME $VERSION
$NAME is a script to help you check casks info you installed and
upgrade if new version detected. This script will run \`brew update\` first
to fetch newset cask info from GitHub, and ask to run\`brew upgrade\` if
upgradeable brew formulae exist.

Usage:
  $BASENAME [OPTION]...

Options:
  -y,  --yes                Upgrade without asking
  -h,  --help               Show this help
  -v,  --version            Show version info
  -V,  --verbose            Show verbose info

Bug report and feedback, please check GitHub Gist:
  $URL
"

AUTO_YES=false
SHOW_VERSION=false
SHOW_VERBOSE=false
SHOW_USAGE=false

while [[ $# -gt 0 ]]; do
    key=$1
    case $key in
        -y|--yes)
            AUTO_YES=true
            ;;
        -v|--version)
            SHOW_VERSION=true
            ;;
        -V|--verbose)
            SHOW_VERBOSE=true
            ;;
        -h|--help)
            SHOW_USAGE=true
            ;;
        *)
            echo "$USAGE"
            echo "Unknown option: $key"
            exit 1
            ;;
    esac
    shift
done

[[ "$SHOW_USAGE" = "true" ]] && echo "$USAGE" && exit 0
[[ "$SHOW_VERSION" = "true" ]] && echo "$NAME $VERSION" && exit 0

UPGRADE_CASKS=""
AUTO_UPDATE_CASKS=""
SELF_CHECK_CASKS=""
DEPRECATED_CASKS=""
CASKROOM="$(brew --prefix)/Caskroom"
for BREW_CASK_OPT in $HOMEBREW_CASK_OPTS; do
    if [[ "$BREW_CASK_OPT" =~ --caskroom=* ]]; then
        CASKROOM="${BREW_CASK_OPT#*=}"
        break
    fi
done

echo "Caskroom path: $CASKROOM"
echo "run \`brew update\`"
if ! brew update; then
    echo -e "\033[0;31mError: Cannot update cask info from repository.\033[0m"
    exit 1
fi

echo "run \`brew outdated\`"
BREW_OUTDATED=$(brew outdated --verbose)
[ -n "$BREW_OUTDATED" ] && echo "$BREW_OUTDATED"
if [ -n "$BREW_OUTDATED" ]; then
    if [[ "$AUTO_YES" = "true" ]]; then
        ans='Y'
    else
        read -r -n 1 -p "Upgradeable brew formulae exist. Do you want to upgrade now (y/N)? " ans
        echo
    fi
    if [[ $ans = [Yy] ]]; then
        echo "run \`brew upgrade\`"
        brew upgrade
    else
        echo "Passed."
    fi
else
    echo "No upgradeable brew formulae exist."
fi

CASK_LIST=$(brew list --cask --full-name)
while read -r cask; do
    [[ "$SHOW_VERBOSE" = "true" ]] && echo "Checking cask info: $cask"
    if [ "${cask:${#cask}-3}" = '(!)' ]; then
        [[ "$SHOW_VERBOSE" = "true" ]] && echo "Deprecated cask detected: ${cask::${#cask}-4}"
        if [ -z "$DEPRECATED_CASKS" ]; then
            DEPRECATED_CASKS="${cask::${#cask}-4}"
        else
            DEPRECATED_CASKS="$DEPRECATED_CASKS ${cask::${#cask}-4}"
        fi
        continue
    fi

    cask_info=$(brew info --cask "$cask")
    if [ -z "$cask_info" ]; then
        echo -en '\033[0;33m'
        echo "Warning: Cannot get cask info: $cask, please check"
        echo "  https://github.com/caskroom/homebrew-cask/search?q=$cask"
        echo -e "to get more info.\033[0m"
        continue
    fi

    cask_ver=$(echo "$cask_info" | awk 'FNR == 1 {print $3}')
    if [ -z "$cask_ver" ]; then
        echo -en '\033[0;33m'
        echo "  Cannot get cask info: $cask"
        echo -en "\033[0m"
        continue
    fi
    if [ "$cask_ver" = "latest" ]; then
        if brew cat --cask "$cask" | grep -F 'auto_updates true' > /dev/null; then
            [[ "$SHOW_VERBOSE" = "true" ]] && echo "  Cask \"$cask\" will update automatically."
            if [ -z "$AUTO_UPDATE_CASKS" ]; then
                AUTO_UPDATE_CASKS="$cask"
            else
                AUTO_UPDATE_CASKS="$AUTO_UPDATE_CASKS $cask"
            fi
           continue
        fi
        if [ -z "$SELF_CHECK_CASKS" ]; then
            SELF_CHECK_CASKS="$cask"
        else
            SELF_CHECK_CASKS="$SELF_CHECK_CASKS $cask"
        fi
        continue
    fi

    IFS='/' read -ra cask_hierarchy_array <<< "$cask"
    cask_name="${cask_hierarchy_array[${#cask_hierarchy_array[@]}-1]}"
    if [ ! -d "$CASKROOM/$cask_name/$cask_ver" ]; then
        echo "  New version detected: $cask -> $cask_ver"
        if [ -z "$UPGRADE_CASKS" ]; then
            UPGRADE_CASKS="$cask"
        else
            UPGRADE_CASKS="$UPGRADE_CASKS $cask"
        fi
    fi
done <<< "$CASK_LIST"

echo "========================================================================"
if [ -n "$UPGRADE_CASKS" ]; then
    echo "Need upgrade: "
    echo "$UPGRADE_CASKS"
    if [[ "$AUTO_YES" = "true" ]]; then
        ans=Y
    else
        read -r -n 1 -p "Do you want to upgrade now (y/N)? " ans
        echo
    fi
    if [[ $ans = [Yy] ]]; then
        echo "brew upgrade --cask $UPGRADE_CASKS"
        brew upgrade --cask $UPGRADE_CASKS
    else
        echo "Aboved."
    fi
else
    echo "No upgradeable cask detected."
fi

if [ -n "$DEPRECATED_CASKS" ]; then
    echo "========================================================================"
    echo "Deprecated cask detected: "
    echo "$DEPRECATED_CASKS"
fi

if [ -n "$AUTO_UPDATE_CASKS" ]; then
    echo "========================================================================"
    echo "These cask(s) will check update automatically when start running: "
    echo "$AUTO_UPDATE_CASKS"
fi

if [ -n "$SELF_CHECK_CASKS" ]; then
    echo "========================================================================"
    echo 'Need to check by yourself (version="latest"):'
    echo "$SELF_CHECK_CASKS"
fi

echo "Brew Cask Upgrade Complete."
exit 0

v1.1.0: Use brew cask upgrade to instead brew cask install --force.

v1.1.1: Use brew upgrade --cask to instead brew cask upgrade.

v1.1.2: Use brew info --cask & brew cat --cask to instead brew cask info & brew cask cat.

v1.1.3:

• Bug fixed: Cannot get cask info when one cask exists in multiple taps.
• Fix syntax warning

v1.1.4: A little bug fixed

v1.1.5: bug fixed