Commit | Line | Data |
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cc9b12f0 UO |
1 | #!/bin/bash |
2 | ||
3 | # Script to delete tiles that only contain water (usually in the | |
4 | # middle of an ocean) in the higher numbered zoomlevels. These | |
5 | # are trivial to regenerate (far less than one second) at any | |
6 | # time. | |
7 | ||
8 | # Some settings | |
9 | # Minimum Zoom in which we delete | |
f591210a | 10 | MINZ=10 |
cc9b12f0 UO |
11 | |
12 | # Maximum Zoom in which we delete | |
13 | MAXZ=20 | |
14 | ||
15 | # Age in days after which we delete | |
16 | AGE=3 | |
17 | ||
f591210a | 18 | declare -A TMD5 |
cc9b12f0 | 19 | # the md5sum of a metatile containing only water? |
f591210a UO |
20 | TMD5[osmde]="c6501cefd852a2c5b16f297948ca309c" |
21 | TMD5[osmorg]="9d7ceeb7ab3a0905abf200f1a7608f92" | |
22 | TMD5[osmhd]="d47bd18df80dbefb2f89b81a672cae92" | |
cc9b12f0 | 23 | |
f591210a | 24 | declare -A TSIZE |
cc9b12f0 | 25 | # the size of a metatile containing only water? |
f591210a UO |
26 | TSIZE[osmde]=7124 |
27 | TSIZE[osmorg]=7124 | |
28 | TSIZE[osmhd]=8596 | |
cc9b12f0 | 29 | |
f591210a | 30 | declare -A TDIR |
cc9b12f0 | 31 | # Directory that contains the tiles? (with trailing slash!) |
f591210a UO |
32 | TDIR[osmde]="/mnt/tiles/tiles/osmde/" |
33 | TDIR[osmorg]="/mnt/tiles/tiles/osm/" | |
34 | TDIR[osmhd]="/mnt/tiles/tiles/osmhd/" | |
cc9b12f0 UO |
35 | |
36 | NDELETED=0 | |
f591210a | 37 | for style in "osmde" "osmorg" "osmhd" |
cc9b12f0 | 38 | do |
f591210a UO |
39 | echo "Handling style: $style - looking for files with size ${TSIZE[$style]} and md5sum ${TMD5[$style]} in ${TDIR[$style]}" |
40 | for z in `seq $MINZ $MAXZ` | |
cc9b12f0 | 41 | do |
f591210a UO |
42 | if [ ! -d "${TDIR[$style]}${z}" ] ; then |
43 | continue | |
cc9b12f0 | 44 | fi |
f591210a UO |
45 | for tiles in `find ${TDIR[$style]}${z} -xdev -type f -name '*.meta' -size ${TSIZE[$style]}c -mtime +${AGE} -print` |
46 | do | |
47 | # We need to skip the first 20 bytes of the file as they contain the metafile | |
48 | # header that contains the x/y location of the tile. | |
49 | TILEMD5=`tail -c +20 $tiles | md5sum -b | sed -e 's/ .*//g'` | |
50 | if [ "$TILEMD5" == "${TMD5[$style]}" ] ; then | |
51 | echo "Deleting $tiles" | |
52 | rm $tiles | |
53 | if [ $? -ne 0 ] ; then | |
54 | echo "There was an error deleting $tiles." | |
55 | echo "Aborting after deleting $NDELETED files." | |
56 | exit 1 | |
57 | fi | |
58 | let "NDELETED=NDELETED+1" | |
59 | #else | |
60 | # echo "$tiles is not a water tile." | |
cc9b12f0 | 61 | fi |
f591210a | 62 | done |
cc9b12f0 UO |
63 | done |
64 | done | |
65 | ||
66 | echo "$NDELETED files deleted." | |
67 |