[MacPorts] #28668: checksum phase runs twice: to test and to print expected values

[MacPorts]

#28668: checksum phase runs twice: to test and to print expected values
-------------------------------+--------------------------------------------
  Reporter:  snc@…             |       Owner:  snc@…           
      Type:  enhancement       |      Status:  assigned        
  Priority:  Normal            |   Milestone:  MacPorts Future 
 Component:  base              |     Version:  1.9.99          
Resolution:                    |    Keywords:                  
      Port:                    |  
-------------------------------+--------------------------------------------

Comment(by raimue@…):

 I can reproduce the problem mentioned by jmr. The problem is that the
 proposed checksums line in "The correct checksum line may be:" lists the
 names of the distfiles at the end. Or whatever it does, it is not valid...

 To reproduce the problem I replaced some of the checksums in the xforms
 port with an "x":
 {{{
 --->  Verifying checksum(s) for xforms
 --->  Checksumming xforms-1.0.93sp1.tar.gz
 Error: Checksum (md5) mismatch for xforms-1.0.93sp1.tar.gz
 Portfile checksum: xforms-1.0.93sp1.tar.gz md5 x
 Distfile checksum: xforms-1.0.93sp1.tar.gz md5
 68ed76216be9b09032e22736d95c8b3c
 Error: Checksum (sha1) mismatch for xforms-1.0.93sp1.tar.gz
 Portfile checksum: xforms-1.0.93sp1.tar.gz sha1 x
 Distfile checksum: xforms-1.0.93sp1.tar.gz sha1
 a2c52f44ef4b20fc9002615f978eb49c79f63cd2
 Error: Checksum (rmd160) mismatch for xforms-1.0.93sp1.tar.gz
 Portfile checksum: xforms-1.0.93sp1.tar.gz rmd160 x
 Distfile checksum: xforms-1.0.93sp1.tar.gz rmd160
 cb094dbeb96b5adaa105e8f53ddbe5e452a0978e
 --->  Checksumming xforms.html.tar.gz
 --->  Checksumming xforms.pdf
 The correct checksum line may be:
 checksums           md5     68ed76216be9b09032e22736d95c8b3c \
                     sha1    a2c52f44ef4b20fc9002615f978eb49c79f63cd2 \
                     rmd160  cb094dbeb96b5adaa105e8f53ddbe5e452a0978e \
                     md5     d89e634753ad349b281b072c84182aa6 \
                     sha1    7faa22e809dfec207931237bebd1572ff0a488c1 \
                     rmd160  1c2054aeead5031bff8fcdd5f38715247d0b62e7 \
                     md5     0080f2d50d76b8245bd63ee1d821b147 \
                     sha1    187e653fbae01f4652e2aa35a8f4806b4ae5abbc \
                     rmd160  e49a6f0d8485f72ef2ab93dba7e6f23b3132b9d9 \
                     xforms-1.0.93sp1.tar.gz \
                     xforms.html.tar.gz \
                     xforms.pdf
 }}}

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Ticket URL: <https://trac.macports.org/ticket/28668#comment:6>
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