Keyboard Shortcut Shell Script Magic

keyboardShortcuts.sh

function addCustomMenuEntryIfNeeded
{
    if [[ $# == 0 || $# > 1 ]]; then
        echo "usage: addCustomMenuEntryIfNeeded com.company.appname"
        return 1
    else
        local contents=`defaults read com.apple.universalaccess "com.apple.custommenu.apps"`
        local grepResults=`echo $contents | grep $1`
        if [[ -z $grepResults ]]; then
            # does not contain app
            defaults write com.apple.universalaccess "com.apple.custommenu.apps" -array-add "$1"
        else
            # contains app already, so do nothing
        fi
    fi
}

function fixKeyboardShortcuts
{
    local COMMAND_KEY_SYMBOL="@"
    local CONTROL_KEY_SYMBOL="^"
    local OPTION_KEY_SYMBOL="~"
    local SHIFT_KEY_SYMBOL="$"
    local TAB_KEY_SYMBOL="\\U21e5"

    # Finder
    # Show Package Contents: Command-Shift-O
    defaults write com.apple.finder NSUserKeyEquivalents "{ 'Show Package Contents' = '${COMMAND_KEY_SYMBOL}${SHIFT_KEY_SYMBOL}O'; }"
    addCustomMenuEntryIfNeeded "com.apple.finder"

    # Terminal
    # Select Next Tab: Control-Tab
    # Select Previous Tab: Control-Shift-Tab
    defaults write com.apple.Terminal NSUserKeyEquivalents "{
        'Select Next Tab' = '${CONTROL_KEY_SYMBOL}${TAB_KEY_SYMBOL}';
        'Select Previous Tab' = '${CONTROL_KEY_SYMBOL}${SHIFT_KEY_SYMBOL}${TAB_KEY_SYMBOL}';
    }"
    addCustomMenuEntryIfNeeded "com.apple.Terminal"

    # OmniGraffle
    # Fit in Window: Command-0
    # Grid Lines: Option-Command-G
    defaults write com.omnigroup.OmniGraffle6 NSUserKeyEquivalents "{
        'Fit in Window' = '${COMMAND_KEY_SYMBOL}0';
        'Grid Lines' = '${OPTION_KEY_SYMBOL}${COMMAND_KEY_SYMBOL}G';
    }"
    addCustomMenuEntryIfNeeded "com.omnigroup.OmniGraffle6"
}

fixKeyboardShortcuts