transfer_file_to_iphone.sh

#!/bin/sh

##==============================================================================
## PROBLEM STATEMENT
## -----------------
## Currently, transfering files between FreeBSD 10.3 computer and iPhone 6
## (IOS 10.3.3) causes Input/Output errors. The errors are randomly occured
## during the file transfering process. Whenever the error occured, the file
## transfering process will fail and the computer is required to re-mount the
## iPhone again before resuming the file transfering.
##
## THE PURPOSE OF THIS SCRIPT
## --------------------------
## The purpose of this script is to automate the mounting and file transfering
## process. If the Input/Output error occured during the file transfering,
## the script will re-mount and resume the file transfering process.
##
## HOW TO USE THIS SCRIPT
## ----------------------
## To use this script, simply set the APPID, MOUNTPOINT, SOURCE, and
## DESTINATION. The APPID is the iPhone's app id, which can be found using
## "ideviceinstaller" tool from
## https://github.com/libimobiledevice/ideviceinstaller.
## The purpose of specifying the APPID is to transfer files into the app's
## local storage. For example, the APPID for Adobe Reader app is
## "com.adobe.Adobe-Reader". By specifying this APPID will allow the user to
## transfer PDF documents into Adobe Reader local files, which can be read
## offline without requiring any cloud services. The MOUNTPOINT is the location
## to mount the iPhone's app, SOURCE is the source file's path, and DESTINATION
## is where the SOURCE files will be transfered. If the SOURCE is a directory,
## the script will transfer all files in the directory.
##==============================================================================

APPID="com.adobe.Adobe-Reader"
MOUNTPOINT="/mnt/iphone"
SOURCE="/home/tracy/Documents/ebooks"
DESTINATION="${MOUNTPOINT}/"

while true
do

    ## Wait for 3 seconds, mount the iPhone's app, and then wait
    ## for another 3 seconds
    sleep 3
    ifuse -o allow_other --documents ${APPID} ${MOUNTPOINT}
    sleep 3

    ## Begin file transfering as user Tracy (any non-root user). Retry if failed
    su -m tracy -c "rsync -rv --progress --append ${SOURCE} ${DESTINATION}"
    retval=$?
    if [ ${retval} == 0 ]; then
        echo "Done transfering file!"
        break
    else
        echo "Failed! Retry again in 3 seconds..."
        sleep 3

        ## Make sure the iPhone's app isn't mounted
        umount -v ${MOUNTPOINT}
        retval=$?
        if [ ${retval} != 0 ]; then
            break
        fi
    fi

done