NAME¶
osmium-merge-changes - merge several OSM change files into one
SYNOPSIS¶
osmium merge-changes [
OPTIONS]
OSM-CHANGE-FILE...
DESCRIPTION¶
Merges the content of all change files given on the command line into one large
change file. Objects are sorted by type, ID, version, and timestamp so it
doesn't matter in what order the change files are given or in what order they
contain the data.
OPTIONS¶
- -s, --simplify
- Only write the last version of any object to the output. For an object
created in one of the change files and removed in a later one, the deleted
version of the object will still appear because it is the latest
version.
COMMON OPTIONS¶
- -h, --help
- Show usage help.
- -v, --verbose
- Set verbose mode. The program will output information about what it is
doing to stderr.
- -F, --input-format=FORMAT
- The format of the input file(s). Can be used to set the input format if it
can't be autodetected from the file name(s). This will set the format for
all input files, there is no way to set the format for some input files
only. See osmium-file-formats(5) or the libosmium manual for
details.
OUTPUT OPTIONS¶
- -f, --output-format=FORMAT
- The format of the output file. Can be used to set the output file format
if it can't be autodetected from the output file name. See
osmium-file-formats(5) or the libosmium manual for details.
- --fsync
- Call fsync after writing the output file to force flushing buffers to
disk.
- --generator=NAME
- The name and version of the program generating the output file. It will be
added to the header of the output file. Default is "
osmium/" and the version of osmium.
- -o, --output=FILE
- Name of the output file. Default is '-' (STDOUT).
- -O, --overwrite
- Allow an existing output file to be overwritten. Normally osmium
will refuse to write over an existing file.
- --output-header=OPTION
- Add output header option. This option can be given several times. See the
libosmium manual for a list of allowed header options.
DIAGNOSTICS¶
osmium merge-changes exits with exit code
- 0
- if everything went alright,
- 1
- if there was an error processing the data, or
- 2
- if there was a problem with the command line arguments.
MEMORY USAGE¶
osmium merge-changes keeps the contents of all the change files in main
memory. This will take roughly 10 times as much memory as the files take on
disk in
.osm.bz2 format.
EXAMPLES¶
Merge all changes in
changes directory into
all.osc.gz:
-
osmium merge-changes -o all.osc.gz changes/*.gz
Because osmium merge-changes sorts its input, you can also use it to sort
just a single change file:
-
osmium merge-changes unsorted.osc.gz -o sorted.osc.gz
SEE ALSO¶
- •
- osmium(1), osmium-file-formats(5),
osmium-merge(1)
- •
- Osmium website (http://osmcode.org/osmium-tool/)
COPYRIGHT¶
Copyright (C) 2013-2017 Jochen Topf <jochen@topf.org>.
License GPLv3+: GNU GPL version 3 or later
<
https://gnu.org/licenses/gpl.html>. This is free software: you are free
to change and redistribute it. There is NO WARRANTY, to the extent permitted
by law.
If you have any questions or want to report a bug, please go to
http://osmcode.org/contact.html
AUTHORS¶
Jochen Topf <jochen@topf.org>.