Created
May 8, 2014 15:24
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Creating regional OSM .osc diffs
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| #!/bin/bash | |
| cd /tmp | |
| SCRIPTDIR=/etc/planet/hourly.d | |
| BASEDIR=/srv/planet.osm.ch | |
| DATADIR=$BASEDIR/data | |
| WWWDIR=$BASEDIR/site | |
| LOCKFILE=$DATADIR/chextract.lock | |
| BBOX="5,45.3,11.3,48.3" | |
| CHPOLY=$WWWDIR/switzerland-padded.poly | |
| CHOUTPBF=$WWWDIR/switzerland-padded.osm.pbf | |
| OLDBOXEXTRACT=$DATADIR/chbbox_old.o5m | |
| NEWBOXEXTRACT=$DATADIR/chbbox.o5m | |
| OLDCHEXTRACT=$DATADIR/switzerland_old.o5m | |
| NEWCHEXTRACT=$DATADIR/switzerland.o5m | |
| NEWDIFF=$DATADIR/chdiff.osc | |
| HOURLYDIR=$WWWDIR/replication/hour | |
| STATEFILE=$DATADIR/state.txt | |
| # derived values | |
| TEMPBOXEXTRACT=$(dirname $NEWBOXEXTRACT)/inprogress_$(basename $NEWBOXEXTRACT) | |
| TEMPCHEXTRACT=$(dirname $NEWCHEXTRACT)/inprogress_$(basename $NEWCHEXTRACT) | |
| CHPBF=${NEWCHEXTRACT%.o5m}.pbf | |
| SEQUENCENUMBER=$(awk 'BEGIN{FS="="} /sequenceNumber/{print $2}' $HOURLYDIR/state.txt) | |
| ((SEQUENCENUMBER += 1)) | |
| ((LEVEL_ONE_DIR = SEQUENCENUMBER / 1000000)) | |
| ((LEVEL_TWO_DIR = (SEQUENCENUMBER / 1000) % 1000)) | |
| ((LEVEL_THREE_FILE = SEQUENCENUMBER % 1000 )) | |
| LEVEL_ONE_DIR=$(printf "%03d" $LEVEL_ONE_DIR) | |
| LEVEL_TWO_DIR=$(printf "%03d" $LEVEL_TWO_DIR) | |
| LEVEL_THREE_FILE=$(printf "%03d" $LEVEL_THREE_FILE) | |
| OSCPATH=$HOURLYDIR/$LEVEL_ONE_DIR/$LEVEL_TWO_DIR/$LEVEL_THREE_FILE | |
| lockfile-create $LOCKFILE | |
| # lockfile create waits for some time and retries to create the lock file a few times. | |
| # If it gives up, we need to exit now. | |
| if [ $? -ne 0 ]; then exit 1; fi | |
| lockfile-touch $LOCKFILE & | |
| LOCKPID="$!" | |
| # echo "lock down, starting update of ch extract" | |
| function exit_on_failure | |
| { | |
| if [ $? -ne 0 ] | |
| then | |
| kill "${LOCKPID}" | |
| lockfile-remove $LOCKFILE | |
| exit 1 | |
| fi | |
| } | |
| # update to current osm state | |
| osmupdate $NEWBOXEXTRACT $TEMPBOXEXTRACT --minutely -t=$BASEDIR/osmupdate_temp/temp -b=$BBOX | |
| exit_on_failure | |
| # move files | |
| mv $OLDBOXEXTRACT $OLDBOXEXTRACT.bak | |
| mv $NEWBOXEXTRACT $OLDBOXEXTRACT | |
| mv $TEMPBOXEXTRACT $NEWBOXEXTRACT | |
| # derive new swiss extract | |
| osmconvert $NEWBOXEXTRACT -o=$TEMPCHEXTRACT -B=$CHPOLY | |
| exit_on_failure | |
| osmconvert $TEMPCHEXTRACT -o=$CHPBF | |
| exit_on_failure | |
| chmod 644 $CHPBF | |
| # derive change file | |
| osmconvert $NEWCHEXTRACT $TEMPCHEXTRACT --diff --fake-lonlat --emulate-osmosis -o=$NEWDIFF | |
| exit_on_failure | |
| # create state file | |
| date --utc > $STATEFILE | |
| echo sequenceNumber=$SEQUENCENUMBER >> $STATEFILE | |
| echo timestamp=$(osmconvert $TEMPCHEXTRACT --out-timestamp) >> $STATEFILE | |
| # move files | |
| mv $OLDCHEXTRACT $OLDCHEXTRACT.bak | |
| mv $NEWCHEXTRACT $OLDCHEXTRACT | |
| mv $TEMPCHEXTRACT $NEWCHEXTRACT | |
| mv $CHPBF $CHOUTPBF | |
| mkdir -p $(dirname $OSCPATH) | |
| cp $STATEFILE $OSCPATH.state.txt | |
| gzip $NEWDIFF | |
| mv $NEWDIFF.gz $OSCPATH.osc.gz | |
| chmod +r $OSCPATH.osc.gz | |
| mv $STATEFILE $HOURLYDIR/state.txt | |
| # echo "release lock, update finished" | |
| kill "${LOCKPID}" | |
| lockfile-remove $LOCKFILE |
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