[MacPorts] #60176: Failure to activate cctools with bsdtar from libarchive port

[MacPorts]

#60176: Failure to activate cctools with bsdtar from libarchive port
-------------------------+----------------------
  Reporter:  agouasmi    |      Owner:  eborisch
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.2
Resolution:              |   Keywords:
      Port:  libarchive  |
-------------------------+----------------------

Comment (by eborisch):

 These are failing as the files it is trying to create are set readonly
 ''and'' have extended metadata associated with them from the buildbot for
 some reason. Explicitly, they have these (in addition to a "Intentionally
 left blank" empty resource fork which I've elided) attached: (this is in
 the cctools tarball linked above)

 {{{
 xattr -l opt/local/share/man/man3/end.3.gz
 [...]
 com.apple.lastuseddate#PS:
 00000000  A5 F5 38 5C 00 00 00 00 AA 2A 8D 10 00 00 00 00
 |..8......*......|
 00000010
 com.apple.metadata:kMDLabel_xnqz26a5n2idcpq4xsodv4zg4u:
 00000000  F2 C1 BC 50 DC 76 36 DF 4D 59 1F CB B9 DA F9 1D
 |...P.v6.MY......|
 00000010  E5 71 D3 83 CD 13 71 7F 02 99 A4 AC CE F6 1D 6E
 |.q....q........n|
 00000020  AB 6A 26 77 D2 42 F7 65 F2 E0 E4 24 9D CC DE 51
 |.j&w.B.e...$...Q|
 00000030  05 24 5B 8C B4 AC D9 44 13 07 A4 1F 00 81 F4 20
 |.$[....D....... |
 00000040  B2 3C 76 67 99 BF 26 8F F2 7B 7E C5 18 73 24 34
 |.<vg..&..{~..s$4|
 00000050  1A 64 E6 A9 4E 5E BC F1 2B                       |.d..N^..+|
 00000059
 }}}

 So there's potentially a bug in libarchive where it tries to
 [https://github.com/libarchive/libarchive/blob/master/libarchive/archive_write_disk_posix.c#L1827
 set these] after the file
 [https://github.com/libarchive/libarchive/blob/master/libarchive/archive_write_disk_posix.c#L1790
 has been chmod()-ed] to readonly and gets an EPERM. This is similar to a
 bug I helped fix to get compression working in the first place. I don't
 know if the
 [https://github.com/libarchive/libarchive/blob/master/libarchive/archive_write_disk_posix.c#L1786
 comment in the code] about chmod() clearing ACLs applies to OSX, so that
 needs some investigation. Anyone know?

 But there's also the question of why the builtbot is creating this
 metadata in the first place. Anyone know why these are on there or if they
 are needed?

-- 
Ticket URL: <https://trac.macports.org/ticket/60176#comment:16>
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