Archived
149 lines
4.1 KiB
Bash
Executable File
149 lines
4.1 KiB
Bash
Executable File
#!/bin/bash
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# ---------------------------------------------------------------------------
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# This script is triggered by an udev-rule in /etc/udev/rules.d/99-usbcopy.rules.
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# It copies all images from a SD-card to the hard-disk.
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#
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# Special features:
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# - rename files to a unique ID: pii123456.*
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# - copies to subdirs per day
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# - only copies files not already copied
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# - create thumbnails
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#
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# If DEBUG=1, messages go the the syslog. To view the messages, run
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# sudo journalctl SYSLOG_IDENTIFIER=copy_img2
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#
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# Dependencies: GraphicsMagick
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#
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# Author: Bernhard Bablok
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# License: GPL3
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#
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# Website: https://github.com/bablokb/pi-imgtank
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#
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# ---------------------------------------------------------------------------
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source $(dirname "$0")/copy_mv_img2.inc
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# --- global settings -----------------------------------------------------
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setDefaults() {
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setGlobalDefaults
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}
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# --- check device --------------------------------------------------------
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checkDevice() {
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# query udev argument
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device="$1"
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msg "info: checking: $1"
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}
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# --- prepare system -----------------------------------------------------
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prepareSystem() {
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# change state of HAT: Action Start
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#/usr/local/sbin/hatctl.py AS
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# create IMAGE_ROOT (if it does not exist)
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if [ ! -d "$IMAGE_ROOT" ]; then
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mkdir -p "$IMAGE_ROOT"
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chown "$DATA_OWNER" "$IMAGE_ROOT"
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fi
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# create THUMB_ROOT (if it does not exist)
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if [ ! -d "$THUMB_ROOT" ]; then
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mkdir -p "$THUMB_ROOT"
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chown "$DATA_OWNER" "$THUMB_ROOT"
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fi
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# create mount-directory for SD-card
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mountdir="$DATA_ROOT/mnt_sd"
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msg "mountdir: $mountdir"
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mkdir -p "$mountdir"
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# try to mount SD-card (try /dev/sdx1 first, then fallback to /dev/sdx)
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local sd_device="/dev/${device}1"
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[ ! -b "$sd_device" ] && sd_device="/dev/${device}"
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if ! mount "$sd_device" "$mountdir"; then
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msg "error: could not mount $sd_device"
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cleanup
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exit 3
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fi
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}
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# --- cleanup -------------------------------------------------------------
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cleanup() {
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# umount SD-card
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msg "umounting mountdir: $mountdir"
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grep -q "$mountdir" /etc/mtab && umount "$mountdir"
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msg "Finished! Remove SDcard"
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ps -ef | grep matrix | grep -v grep | awk '{print $2}' | xargs kill
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}
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# --- copy all images ----------------------------------------------------
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copyFiles() {
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#cleanup display and show copy screen
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python /home/pi/PiDisplay/matrix.py &
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# check if timestamp-file exists on SD-card. If not, create it
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if [ ! -f "$mountdir/.last_img" ]; then
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touch -d "01/01/1960" "$mountdir/.last_img"
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fi
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# find all files newer than .last_img on SD-card and copy it
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local img srcStem srcStemNew targetStem ext
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for img in $(find "$mountdir/DCIM" \
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-type f -newer "$mountdir/.last_img" | sort); do
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msg "processing $img"
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# check if we already copied a file with the same stem
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local srcStemNew="${img%.*}"
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if [ "$srcStem" != "$srcStemNew" ]; then
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# make the new stem the current stem
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srcStem="$srcStemNew"
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# query date of current image and create target directory
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local imgDate=$(getImageDate "$img")
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if [ ! -d "$IMAGE_ROOT/$imgDate" ]; then
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mkdir -p "$IMAGE_ROOT/$imgDate"
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chown "$DATA_OWNER" "$IMAGE_ROOT/$imgDate"
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mkdir -p "$THUMB_ROOT/$imgDate"
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chown "$DATA_OWNER" "$THUMB_ROOT/$imgDate"
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fi
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# get stem of target filename
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targetStem=$(nextNumber)
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fi
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# now copy image
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ext="${img##*.}"
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ext="${ext,,}" # convert to lowercase
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msg "copying $img to $IMAGE_ROOT/$imgDate/$targetStem.$ext"
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cp -a "$img" "$IMAGE_ROOT/$imgDate/$targetStem.$ext"
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chmod -wx "$IMAGE_ROOT/$imgDate/$targetStem.$ext"
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chown "$DATA_OWNER" "$IMAGE_ROOT/$imgDate/$targetStem.$ext"
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# create thumbnail
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[ "$ext" = "jpg" ] && createThumb "$imgDate/$targetStem.$ext"
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done
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# save timestamp of last copied image
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if [ -f "$img" ]; then
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touch -r "$img" "$mountdir/.last_img"
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else
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msg "no images to copy"
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fi
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}
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# --- main program ---------------------------------------------------------
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setDefaults
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checkDevice "$1"
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prepareSystem
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copyFiles
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cleanup
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