NAME

       pyosmium-get-changes

SYNOPSIS

       pyosmium-get-changes [options]

DESCRIPTION

       Fetch diffs from an OSM planet server.

       The starting point of the diff must be given either as a sequence ID or a date or can be computed from an
       OSM  file.  If  no output file is given, the program will just print the initial sequence ID it would use
       (or save it in a file, if requested) and exit. This can be used to bootstrap the update process.

       The program tries to download until the latest change on the server is found  or  the  maximum  requested
       diff size is reached. Note that diffs are kept in memory during download.

       On  success,  the  program  will  print  a single number to stdout, the sequence number where to continue
       updates in the next run. This output can also be written to (and later read from) a file.

       *Note:* you may pipe the diff also to standard output using '-o -'. Then the sequence number will not  be
       printed. You must write it to a file in that case.

       Some  OSM data sources require a cookie to be sent with the HTTP requests.  pyosmium-get-changes does not
       fetch the cookie from these services for you.  However, it can read cookies from a Netscape-style  cookie
       jar file, send these cookies to the server and will save received cookies to the jar file.

OPTIONS

       -v     Increase verbosity (can be used multiple times)

       -o OUTFILE, --outfile OUTFILE
              Name  of  diff  output  file. If omitted, only the sequence ID will be printed where updates would
              start.

       --format FORMAT
              Format the data should be saved in.

       --server SERVER_URL
              Base URL of the replication server

       --diff-type SERVER_DIFF_TYPE
              File format used by the replication server (default: osc.gz)

       --cookie COOKIE
              Netscape-style cookie jar file to read cookies from and where received cookies will be written to.

       -s OUTSIZE, --size OUTSIZE
              Maximum data to load in MB (default: 100MB).

       -I ID, --start-id ID
              Sequence ID to start with

       -D DATE, --start-date DATE
              Date when to start updates

       -O OSMFILE, --start-osm-data OSMFILE
              start at the date of the newest OSM object in the file

       -f SEQ_FILE, --sequence-file SEQ_FILE
              Sequence file. If the file exists, then updates will start after the id given in the file. At  the
              end of the process, the last sequence ID contained in the diff is written.

       --ignore-osmosis-headers
              When  determining  the  start  from  an  OSM file, ignore potential replication information in the
              header and search for the newest OSM object.

       -d, --no-deduplicate
              Do not deduplicate diffs.

       --socket-timeout SOCKET_TIMEOUT
              Set timeout for file downloads.

       --version
              show program's version number and exit

AUTHOR

       Sarah Hoffmann
       lonvia@denofr.de

DISTRIBUTION

       The latest version of pyosmium may be downloaded from https://github.com/osmcode/pyosmium/

pyosmium                                           2025-03-04                            PYOSMIUM-GET-CHANGES(1)