Bash script to copy various action camera video files to a bulk USB drive

savevideo-array.sh

#!/bin/bash
# This uses too many bashisms for dash

source /etc/os-release
echo 'Running on' $PRETTY_NAME

if [[ "$PRETTY_NAME" == *Manjaro* ]] ; then
  ren='perl-rename'
  dm='sudo dmesg'
elif [[ "$PRETTY_NAME" == *Ubuntu* ]] ; then
  ren='rename'
  dm='dmesg'
else
  echo 'New distro to me:' $PRETTY_NAME
  echo ' ... which rename command is valid?'
  exit
fi

echo Check for good SD card spin-up
$dm | tail -50
echo  ... Ctrl-C to bail out and fix / Enter to proceed

read junk

thisdate=$(date --rfc-3339=date)
echo Date: $thisdate

# MicroSD / readers / USB drive defined in fstab
#  ... with UUID or PARTID as appropriate

echo Mounting bulk video drive
sudo mount /mnt/video
if [ $? -ne 0 ]; then
  echo '** Cannot mount video storage drive'
  exit
fi

# Show starting space available
df -h /mnt/video

# list the cameras

declare -a cams=( AS30V Fly6 M20 M50 C100_1 C100_2 )

declare -A targets=( \
 [AS30V]=/mnt/video/AS30V/$thisdate \
 [Fly6]=/mnt/video/Fly6/DCIM \
 [M20]=/mnt/video/M20/$thisdate \
 [M50]=/mnt/video/M50/$thisdate \
 [C100_1]=/mnt/video/C100_1/$thisdate \
 [C100_2]=/mnt/video/C100_2/$thisdate \
)

declare -A PIDs
declare -A Copied

echo Iterating through cameras: ${cams[*]}

Running=0

for cam in ${cams[*]} ; do
  printf "\nProcessing: $cam\n"
  mpt="/mnt/$cam"
  target=${targets[$cam]}

  sudo mount $mpt

  if [ $? -eq 0 ]; then
    echo " Start $cam transfer from $mpt"

    echo " Make target directory: $target"
    mkdir $target

    case $cam in
    ( AS30V )
      rsync -ahu --progress --exclude "*THM" $mpt/MP_ROOT/100ANV01/ $target &
      ;;
    ( Fly6 )
      rsync -ahu --progress $mpt /mnt/video &
      ;;
    ( M20 )
      n=$( ls $mpt/DCIM/Photo/* 2> /dev/null | wc -l )
      if [ $n -gt 0 ] ; then
        echo " copy M20 photos first"
        rsync -ahu --progress $mpt/DCIM/Photo/ $target
      fi
      echo " cmd: rsync -ahu --progress $mpt/DCIM/Movie/ $target"
      rsync -ahu --progress $mpt/DCIM/Movie/ $target &
      ;;
    ( M50 )
      n=$( ls $mpt/DCIM/PHOTO/* 2> /dev/null | wc -l )
      if [ $n -gt 0 ] ; then
        echo " copy M50 photos first"
        rsync -ahu --progress $mpt/DCIM/PHOTO/ $target
      fi
      rsync -ahu --progress $mpt/DCIM/MOVIE/ $target &
      ;;
    ( C100_1 | C100_2 )
      n=$( ls $mpt/DCIM/Photo/* 2> /dev/null | wc -l )
      if [ $n -gt 0 ] ; then
        echo " copy $cam photos first"
        rsync -ahu --progress $mpt/DCIM/Photo/ $target
      fi
      rsync -ahu --progress $mpt/DCIM/Movie/ $target &
      ;;
    ( * )
      printf "\n**** Did not find $cam in list!\n"
      ;;
    esac

    PIDs[$cam]=$!
    echo " PID for $cam: " "${PIDs[$cam]}"
    Copied[$cam]=1
    (( Running++ ))

  else
    echo " skipping $cam"
    Copied[$cam]=0
  fi

done


printf "\n----- Waiting for all rsync terminations\n"
echo PIDs: "${PIDs[*]}"
if [ $Running -eq 0 ] ; then
  echo No rsyncs started, force error
  rcsum=9999
else
  rcsum=0
  while [ $Running -gt 0 ] ; do
    echo " waiting: $Running"
    wait -n -p PID
    rc=$?
    rcsum=$(( rcsum+$rc ))
    echo RC for $PID: $rc
    (( Running-- ))
  done
  echo All rsyncs finished
fi

if [ $rcsum -eq 0 ] ; then
  echo '----- Final cleanups'

  for cam in ${cams[*]} ; do
    if [ "${Copied[$cam]}" -eq 1 ] ; then
      echo Cleanup for: $cam

      mpt=/mnt/$cam
      target=${targets[$cam]}
      echo Target dir: $target

      case $cam in
      ( Fly6 )
        find $target -name \*AVI -print0 | xargs -0 $ren -v -f 's/AVI/avi/'
        rm -rf $mpt/DCIM/*
        ;;
      ( AS30V )
        find $target -name \*MP4 -print0 | xargs -0 $ren -v -f 's/MP4/mp4/'
        rm $mpt/MP_ROOT/100ANV01/*
        ;;
      ( M50 )
        find $target -name \*MP4 -print0 | xargs -0 $ren -v -f 's/MP4/mp4/'
        rm $mpt/DCIM/MOVIE/*
        n=$( ls $mpt/DCIM/PHOTO/* 2> /dev/null | wc -l )
        if [ $n -gt 0 ] ; then
          echo placeholder $cam
          rm $mpt/DCIM/PHOTO/*
        fi
        ;;
      ( * )
        find $target -name \*MP4 -print0 | xargs -0 $ren -v -f 's/MP4/mp4/'
        find $target -name \*JPG -print0 | xargs -0 $ren -v -f 's/JPG/jpg/'
        rm $mpt/DCIM/Movie/*
        n=$( ls $mpt/DCIM/Photo/* 2> /dev/null | wc -l )
        if [ $n -gt 0 ] ; then
          echo placeholder $cam
          rm $mpt/DCIM/Photo/*
        fi
        ;;
      esac

      sudo umount $mpt
    else
      echo No cleanup for: $cam
    fi
  done

  echo '----- Space remaining on video drive'
  df -h /mnt/video
  sudo umount /mnt/video
  date
  echo Done!
else
 echo Whoopsie! Total RC: $rcsum
fi