[MacPorts] #15939: port install : in need of a progressbar

[MacPorts]

#15939: port install : in need of a progressbar
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  Reporter:  pc@…         |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Low          |  Milestone:  MacPorts Future
 Component:  base         |    Version:  1.6.0
Resolution:               |   Keywords:
      Port:               |
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Comment (by cal@…):

 Just so this is documented somewhere… I've had the idea in my head for a
 while that we could use the number of lines generated on stdout as an
 indicator of build progress. Since warnings go to stderr, this number of
 lines should be roughly the same on all installations for a given port at
 a given version. A webservice could be used to map a hash of (portname,
 version, variants, OS) to the median number of lines submitted for this
 tuple. We could encourage users to opt-in to provide this information if
 base only used the webservice if users also agree to submit this info. The
 hash would be used to prevent turning this into statistics, since we have
 other approaches for that.

 This approach would work for the configure, build and destroot phases of
 pretty much all ports, regardless of their build system.

 Progress for the operations involving (de-)activation and archiving could
 be handled per file because we know (or can easily determine) the number
 of files in a port.

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Ticket URL: <https://trac.macports.org/ticket/15939#comment:13>
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