Add mdfwriter.py script

It can be used for converting data from ROOT formats to MDF but also to subset MDF data (e.g. first N events).

LHCb/run mdfwriter.py -h

usage: mdfwriter.py [-h] -o OUTPUT [-f] [--db-entry] [--start START] [-n NEVENTS | --stop STOP] files [files ...]

Convert data to MDF format

positional arguments:
  files                 Input filenames or TestFileDB entry

optional arguments:
  -h, --help            show this help message and exit
  -o OUTPUT, --output OUTPUT
                        Output filename
  -f, --force           Overwrite output file if it exists
  --db-entry            Interpret the file as a TestFileDB entry
  --start START         First event to write
  -n NEVENTS, --nevents NEVENTS
                        Number of events to write
  --stop STOP           Last event to write (exclusive)

This kind of generalizes ExampleXDigiToMDF.py, so we might decide to drop it.

/cc @sstahl @chasse

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assigned to @chasse

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approved this merge request

@rmatev I think this looks great
Two small nitpicks just to prove I read the code
But these could easily be ignored, so let me know what you think.

Once resolved I'd say let's run this through a single platform just to make sure everything works as expected.

mentioned in issue Moore#411 (closed)

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• 846da705 - Add mdfwriter.py script
• 164bbd12 - Remove ExampleXDigiToMDF.py and test

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assigned to @rmatev and unassigned @chasse

/ci-test --platforms=x86_64_v2-centos7-gcc11-opt

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• [2022-03-22 16:52] Validation started with lhcb-master-mr#4055

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merged

mentioned in commit 9dc99c92

mentioned in merge request Rec!2413 (merged)

mentioned in issue Moore#416 (closed)