work

scripts/tile_gen/extract_btrfs.sh

@@ -1,12 +1,15 @@
 #!/usr/bin/env bash
+set -e
 
 sudo umount mnt_rw || true
-rm -rf mnt_rw
-rm -f image.btrfs
-
+sudo umount mnt_rw2 || true
+rm -rf mnt_rw*
+rm -f image*.btrfs
+rm -f *.log
 
 # make an empty file that's definitely bigger then the current OSM output
 fallocate -l 200G image.btrfs
+fallocate -l 200G image2.btrfs
 
 
 # metadata: single needed as default is now DUP
@@ -14,25 +17,44 @@ mkfs.btrfs -v \
   -m single \
   image.btrfs
 
+mkfs.btrfs -v \
+  -m single \
+  image2.btrfs
+
 # https://btrfs.readthedocs.io/en/latest/btrfs-man5.html#mount-options
 # compression doesn't make sense, data is already gzip compressed
-mkdir -p mnt_rw
+mkdir -p mnt_rw mnt_rw2
+
 sudo mount -v \
   -t btrfs \
   -o noacl,nobarrier,noatime,max_inline=4096 \
   image.btrfs mnt_rw
 
+sudo mount -v \
+  -t btrfs \
+  -o noacl,nobarrier,noatime,max_inline=4096 \
+  image.btrfs mnt_rw2
 
-sudo chown ofm:ofm -R mnt_rw
+sudo chown ofm:ofm -R mnt_rw mnt_rw2
 
 ../../tile_gen/venv/bin/python ../../tile_gen/extract_mbtiles.py output.mbtiles mnt_rw/extract \
-  > "extract_out.log" 2> "extract_err.log"
+  > extract_out.log 2> extract_err.log
+
+# we need to extract, delete and rsync onto a new partition
+# otherwise the partition image stays big
+rsync -aH mnt_rw/extract/ mnt_rw2/extract/ > rsync_out.log 2> rsync_err.log
 
 sudo umount mnt_rw
+sudo umount mnt_rw2
+rm -r mnt_rw*
 
-sudo ../../tile_gen/venv/bin/python ../../tile_gen/shrink_btrfs.py image.btrfs \
-  > "shrink_out.log" 2> "shrink_err.log"
+sudo ../../tile_gen/venv/bin/python ../../tile_gen/shrink_btrfs.py image2.btrfs \
+  > shrink_out.log 2> shrink_err.log
+
+
+#rm image.btrfs
+
+#mv image2.btrfs done.btrfs
 
 # pigz -k image.btrfs --fast
 
-# rsync -avH mnt_rw/extract/ mnt_rw2/extract/ > rsync_out.log 2> rsync_err.log