Utility functions for doing iOS and Mac development

apple-dev.zsh

# cd to the folder containing an Xcode project dragged from an Xcode window's proxy icon. If no file is provided, cd to the folder containing the current Xcode project
function xc
{
    xcodeIsRunning=false
    if [[ `osascript -e 'tell app "System Events" to count processes whose name is "Xcode"'` == 1 ]]; then
        xcodeIsRunning=true
    fi

    if [[ $xcodeIsRunning == false ]]; then
        echo "Xcode is not open. I don’t know what you want from me."
        return
    fi

    if [[ -z $1 ]]; then
        filePath="`osascript -e 'tell application "Xcode" to return POSIX path of (get file of front document)'`"
        # TODO: suppress the error here when there are no open documents
        if [[ -z $filePath ]]; then
            echo "Xcode has no open documents."
            return
        fi

        cd "$filePath"
        returnSilentlyIfNotGitRepo
        groot
    else
        filePath="$@"
        cd "$filePath"/..
    fi
}

function xc832
{
    sudo xcode-select -s /Applications/Xcode_8.3.2.app && echo "Switched to `xcode-select -p`."
}

function xc833
{
    sudo xcode-select -s /Applications/Xcode_8.3.3.app && echo "Switched to `xcode-select -p`."
}

function xcbeta
{
    sudo xcode-select -s /Applications/Xcode-beta.app && echo "Switched to `xcode-select -p`."
}

# used by ox function
function fuzzify
{
    string=$1
    fuzzyString=""
    separator=$2
    if [[ -z $2 ]]; then
        separator=".*"
    fi
    while test -n "$string"; do
        c=${string:0:1}
        fuzzyString="$fuzzyString$c$separator"
        string=${string:1}
    done
    echo $fuzzyString
}

# Opens the Xcode project or workspace in the current folder.
# If you pass a fuzzy path, it will open that instead.
# Example: ox apl/util/myap will open Application/Utility/MyApp.xcodeproj (if it exists). Useful for multi-project repos.
function ox
{
    xcodePath=`xcode-select -print-path`/../..
    if [[ ! -e $xcodePath ]]; then
        echo "Whoa there pardner, you need to install Xcode first."
        return
    fi
    if [[ -z $1 ]]; then
        open -a $xcodePath . 2>&1 > /dev/null
    else
        if [[ -e $1 ]]; then
            open -a $xcodePath $1 2>&1 > /dev/null
        else
            fuzzyTerm=`fuzzify $1 '*'`
            searchPattern1="*$fuzzyTerm.*xcodeproj"
            searchPattern2="*$fuzzyTerm.*xcworkspace"
            fileName=`find . -iname "$searchPattern1" -o -iname "$searchPattern2"`
            fileName=$(echo $fileName | head -n 1)
            open -a $xcodePath $fileName 2>&1 > /dev/null
        fi
    fi
}

# Does what it says on the tin.
function eviscerateDerivedData
{
    local derivedDataPath="$HOME/Library/Developer/Xcode/DerivedData"
    rm -rf "$derivedDataPath"
    echo "Deleted $derivedDataPath"
}

function purgeZeroLengthFilesInDerivedData
{
    for FILE in `find ~/Library/Developer/Xcode/DerivedData -name '*.o' -size 0`
    do
        if [[ -f "$FILE" ]]; then
            echo "deleting $FILE"
            rm "$FILE"
        fi
    done
}

# Copies the current Safari and macOS version and build number to the clipboard. Useful for bug reporting.
function copySafariVersion
{
    local safariVersion=$(defaults read /Applications/Safari.app/Contents/Info CFBundleShortVersionString)
    local safariBuild=$(defaults read /Applications/Safari.app/Contents/Info CFBundleVersion)
    local macOSVersion=$(sw_vers -productVersion)
    local macOSBuild=$(sw_vers -buildVersion)
    local fullString="Safari ${safariVersion} (${safariBuild}) on macOS ${macOSVersion} (${macOSBuild})"
    echo "Copied \"$fullString\""
    echo -n $fullString | pbcopy
}

# Copies the current Chrome and macOS version and build number to the clipboard. Useful for bug reporting.
function copyChromeVersion
{
    local chromeVersion=$(defaults read /Applications/Google\ Chrome.app/Contents/Info CFBundleShortVersionString)
    local chromeBuild=$(defaults read /Applications/Google\ Chrome.app/Contents/Info CFBundleVersion)
    local macOSVersion=$(sw_vers -productVersion)
    local macOSBuild=$(sw_vers -buildVersion)
    local fullString="Chrome ${chromeVersion} (${chromeBuild}) on macOS ${macOSVersion} (${macOSBuild})"
    echo "Copied \"$fullString\""
    echo -n $fullString | pbcopy
}

# Copies the current Chrome and macOS version and build number to the clipboard. Useful for bug reporting.
function copyXcodeVersion
{
    local xcodePath=`xcode-select -p | rev | cut -d'/' -f3- | rev`
    local xcodeVersion=$(defaults read "${xcodePath}"/Contents/Info CFBundleShortVersionString)
    local xcodeBuild=$(defaults read "${xcodePath}"/Contents/Developer/Library/Frameworks/XcodeKit.framework/Versions/A/Resources/version ProductBuildVersion)
    local macOSVersion=$(sw_vers -productVersion)
    local macOSBuild=$(sw_vers -buildVersion)
    local fullString="Xcode ${xcodeVersion} (${xcodeBuild}) on macOS ${macOSVersion} (${macOSBuild})"
    echo "Copied \"$fullString\""
    echo -n $fullString | pbcopy
}

# iOS Development

# Erases all simulators to their original state. Equivalent to choosing "Erase All Content and Settings" for each simulator.
function eraseAllSimulators
{
    osascript -e 'tell application "iOS Simulator" to quit'
    osascript -e 'tell application "Simulator" to quit'
    xcrun simctl erase all
}

# Erase all simulators and then open Xcode from the current directory
function eox
{
    eraseAllSimulators && ox $@
}

# Use Fastlane's Snapshot utility erase all simulators, then reinstate the default set for the currently active Xcode.
# If you like any extra simluators that are not normally active, look at the final commented line for a template you can use to active them.
function resetAllSimulators
{
    if [[ $(bundle check > /dev/null) == 0 ]]; then
        $BUNDLER_PREFIX="bundle exec"
    fi
    osascript -e 'tell application "iOS Simulator" to quit'
    osascript -e 'tell application "Simulator" to quit'
    # SNAPSHOT_FORCE_DELETE via https://github.com/fastlane/fastlane/issues/6927#issuecomment-259494121
    SNAPSHOT_FORCE_DELETE=1 ${BUNDLER_PREFIX} fastlane snapshot reset_simulators
    # xcrun simctl create "iPhone 4s" com.apple.CoreSimulator.SimDeviceType.iPhone-4s com.apple.CoreSimulator.SimRuntime.iOS-9-3
}

# Reset all simulators and then open Xcode from the current directory.
function rox
{
    resetAllSimulators && ox $@
}

# Convenience command to make sure I don't check in xibs/storyboards with misplaced constraints.
# Should really be a commit hook or danger.tools script, but since I don't actually use IB any more, it's not worth improving it.
function misplaced
{
    # Requires the_silver_searcher to be installed.
    ag misplaced
}

# Record video of the iOS simulator.
# Ctrl-C ends recording and dumps the resulting video to the desktop with a similar file name format as a normal screenshot.
function iOSVideo
{
    local dateString=`date +"%Y-%m-%d at %I.%M.%S %p"`
    local fileName="iOS Simulator Video $dateString.mp4"
    local filePath="$HOME/Desktop/$fileName"
    xcrun simctl io booted recordVideo $filePath
}