[Bug 567011] Re: Give a better error message if trying to pbuilder a .changes file

[Maarten Bezemer]

Version 0.204 gives a good/better error when a .changes file is accidentally used:
  E: Command line parameter [<whatever>.changes] is not a valid .dsc file name

At least, the suggestion that a dsc file should be used is showed.

** Changed in: pbuilder (Ubuntu)
       Status: New => Fix Released

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Title:
  Give a better error message if trying to pbuilder a .changes file

Status in “pbuilder” package in Ubuntu:
  Fix Released

Bug description:
  Binary package hint: pbuilder

  A common mistake I make when running pbuilder is to specify the
  .changes file instead of the .dsc.  Probably because my fingers are
  trained that the .changes is the "important" file (since it's what
  I'll be uploading).

  Unfortunately, pbuilder generates a very confusing and unfriendly set
  of error messages when you give it a .changes file instead of a .dsc
  file, and it's not at all clear that the problem is that you gave it
  the wrong kind of file.

  I'd like to see pbuilder be given a clearer error message when this
  happens.  Maybe something like,

      Error:  <whatever>.changes is not in the right format (did you
  mean to build <whatever>.dsc?)

  What would be even more slick would be if pbuilder could DoWhatIMean,
  and figure out the .dsc from the .changes filename, and pbuilder it.
  But at least giving a sane error message would be a step in the right
  direction.

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