mirror of
https://github.com/hyperknot/openfreemap.git
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96 lines
2.1 KiB
Bash
96 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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set -e
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export TILE_GEN_BIN=/data/ofm/tile_gen/bin
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export VENV_PYTHON=$TILE_GEN_BIN/venv/python
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sudo umount mnt_rw 2> /dev/null || true
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sudo umount mnt_rw2 2> /dev/null || true
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rm -rf mnt_rw* tmp_*
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rm -f "*.btrfs" "*.gz"
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rm -f "*.log" "*.txt"
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# make an empty file that's definitely bigger then the current OSM output
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fallocate -l 200G image.btrfs
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fallocate -l 200G image2.btrfs
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# metadata: single needed as default is now DUP
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mkfs.btrfs \
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-m single \
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image.btrfs > /dev/null
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mkfs.btrfs \
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-m single \
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image2.btrfs > /dev/null
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# https://btrfs.readthedocs.io/en/latest/btrfs-man5.html#mount-options
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# compression doesn't make sense, data is already gzip compressed
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mkdir -p mnt_rw mnt_rw2
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sudo mount \
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-t btrfs \
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-o noacl,nobarrier,noatime,max_inline=4096 \
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image.btrfs mnt_rw
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sudo mount \
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-t btrfs \
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-o noacl,nobarrier,noatime,max_inline=4096 \
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image2.btrfs mnt_rw2
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sudo chown ofm:ofm -R mnt_rw mnt_rw2
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$VENV_PYTHON $TILE_GEN_BIN/extract_mbtiles/extract_mbtiles.py \
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tiles.mbtiles mnt_rw/extract \
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> extract_out.log 2> extract_err.log
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grep fixed extract_out.log > dedupl_fixed.log || true
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# Unfortunately, by deleting files from the btrfs partition, the size _grows_.
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# So we need to rsync onto a new partition.
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rsync -avH \
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--max-alloc=4294967296 \
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--exclude dedupl \
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mnt_rw/extract/ mnt_rw2/extract/ \
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> rsync_out.log 2> rsync_err.log
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# collect stats
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{
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echo -e "df -h"
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sudo df -h mnt_rw
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echo -e "\n\nbtrfs filesystem df"
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sudo btrfs filesystem df mnt_rw
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echo -e "\n\nbtrfs filesystem show"
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sudo btrfs filesystem show mnt_rw
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echo -e "\n\nbtrfs filesystem usage"
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sudo btrfs filesystem usage mnt_rw
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} > stats1.txt
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{
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echo -e "df -h"
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sudo df -h mnt_rw2
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echo -e "\n\nbtrfs filesystem df"
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sudo btrfs filesystem df mnt_rw2
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echo -e "\n\nbtrfs filesystem show"
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sudo btrfs filesystem show mnt_rw2
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echo -e "\n\nbtrfs filesystem usage"
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sudo btrfs filesystem usage mnt_rw2
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} > stats2.txt
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sudo umount mnt_rw
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sudo umount mnt_rw2
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rm -r mnt_rw*
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sudo $VENV_PYTHON $TILE_GEN_BIN/shrink_btrfs/shrink_btrfs.py image2.btrfs \
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> shrink_out.log 2> shrink_err.log
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rm image.btrfs
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mv image2.btrfs tiles.btrfs
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pigz tiles.btrfs --fast
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echo DONE
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