[MacPorts] #40292: More user-friendly logs from the buildbots

[MacPorts]

#40292: More user-friendly logs from the buildbots
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 Reporter:  mojca@…         |      Owner:  wsiegrist@…
     Type:  enhancement     |     Status:  new
 Priority:  Normal          |  Milestone:
Component:  server/hosting  |    Version:
 Keywords:                  |       Port:
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 I have a really hard time reading the logs from
 https://build.macports.org/builders/buildports-mtln-x86_64/builds/7570
 and then I have made 36 commits yesterday, which makes it 36 times 3
 (buildbots) as complicated. The log has 77 MB and more than million lines.
 And I don't even know which ports fail to work without writing a script to
 tell me that, or spend a few hours browsing the file with some decent text
 editor that doesn't hang when looking into it.

 A few things that I'm interested in and would like to see without opening
 the million lines:
 - the list of ports that succeeded and/or failed
 - for those that failed, the last 10-50 lines before the error

 And a few other things that would be handy to have:
 - being able to download the complete log just for the port in question
 instead of the whole bunch of ports (I know that this is usually not a
 problem since multiple ports are only rarely committed at once)
 - being able to download the log for the specific port excluding the logs
 from building/activating/deactivating its dependencies

 This could probably be some kind of "download on demand" where the
 information would be extracted from the huge main log. (That is: there is
 no need to store separate files.)

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Ticket URL: <https://trac.macports.org/ticket/40292>
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