add comparison tool

[andlaus]

having a tool which compares two ECU versions and/or complete databases would be nice. something along the lines of:

# compare ECUs
odxtools compare PDX_FILE.pdx somersault_lazy somersault_assiduous

# compare complete files
odxtools compare PDX_FILE_OLD.pdx PDX_FILE_NEW.pdx

Andreas Lauser <[email protected]>, on behalf of MBition GmbH.
Provider Information

[KarloGaloz]

Hi Andreas,

I'm checking out the project rn and I'm interested in adding the feature.
You can assign me to this issue if you like.

[andlaus]

From my side, that is not really required (just open a PR once there's something to show), but I'm happy to put you under a bit of pressure if you want to work on this ;)

[KarloGaloz]

Awesome - will do :)

[kakoeh]

PR #249 introduced compare as new command line utility.
The compare subcommand can be used to compare databases (pdx-files) and diagnostic layers with each other. All diagnostic services as well as its parameters of specified databases and variants are compared with each other and changes are displayed.

Examples:
Comparison of two ecu versions:
odxtools compare ./path/to/database.pdx -v variant1 variant2
Comparison of two database versions:
odxtools compare ./path/to/database.pdx -db ./path/to/old-database.pdx

Katja Köhler <[email protected]>, on behalf of MBition GmbH.
Provider Information

[kakoeh]

Ideas for improvement of comparison tool: #252

[andlaus]

this issue has been completed via #249. closing...