opencv 3.4.7+contrib: Failed to fetch opencv

[barrettsa]

Attempts to upgrade an outdated opencv+contrib:

$ port outdated
The following installed ports are outdated:
opencv                         3.4.3_1 < 3.4.7_0

produces the following output:

$ sudo port upgrade -Ru opencv
--->  Computing dependencies for opencv
--->  Fetching distfiles for opencv
Error: No defined site for tag: opencv_contrib, using master_sites
--->  Attempting to fetch 3.4.7.zip from http://ykf.ca.distfiles.macports.org/MacPorts/mpdistfiles/opencv
--->  Attempting to fetch 3.4.7.zip from http://ywg.ca.distfiles.macports.org/mirror/macports/distfiles/opencv
--->  Attempting to fetch 3.4.7.zip from http://aus.us.distfiles.macports.org/macports/distfiles/
--->  Attempting to fetch 3.4.7.zip from http://nue.de.distfiles.macports.org/opencv
--->  Attempting to fetch 3.4.7.zip from http://mse.uk.distfiles.macports.org/sites/distfiles.macports.org/opencv
--->  Attempting to fetch 3.4.7.zip from http://lil.fr.distfiles.macports.org/opencv
--->  Attempting to fetch 3.4.7.zip from http://fco.it.distfiles.macports.org/mirrors/macports-distfiles/opencv
--->  Attempting to fetch 3.4.7.zip from https://distfiles.macports.org/opencv
--->  Attempting to fetch 3.4.7.zip from http://kmq.jp.distfiles.macports.org/opencv
--->  Attempting to fetch 3.4.7.zip from http://cjj.kr.distfiles.macports.org/opencv
--->  Attempting to fetch 3.4.7.zip from https://pek.cn.distfiles.macports.org/macports/distfiles/opencv
--->  Attempting to fetch 3.4.7.zip from http://jnb.za.distfiles.macports.org/distfiles/opencv
--->  Attempting to fetch 3.4.7.zip from http://nou.nc.distfiles.macports.org/pub/macports/distfiles.macports.org/opencv
--->  Attempting to fetch 3.4.7.zip from http://jog.id.distfiles.macports.org/macports/distfiles/opencv
--->  Attempting to fetch 3.4.7.zip from http://aarnet.au.distfiles.macports.org/pub/macports/distfiles/opencv
Error: Failed to fetch opencv: The requested URL returned error: 404 Not Found

This occurs on macOS 10.14.6, Xcode 10.3. Log file is attached.

[ryandesign (Ryan Carsten Schmidt)]

Caused by [e44fccf27b9558061b4b04ffadf136e06b84f253/macports-ports].

Presumably you would not encounter this problem if you were not using the +contrib variant, so deselecting that variant is one workaround for now.

[cjones051073 (Chris Jones)]

that contrib variant looks awful to maintain... What exactly are these 'extra modules' ? Are they really worth the pain of keeping this variant up to date... ?

[barrettsa]

While my Portfile-fu is admittedly weak, I've been able to upgrade (and install) opencv+contrib using the Portfile changes in the attached opencv_portfile.diff file.

[mf2k (Frank Schima)]

Thanks. ​Per the guidelines, please instead attach a unified diff of the Portfile.

[barrettsa]

Unified diff of Portfile changes

[barrettsa]

Thanks, Frank. Unified diffs are now in Portfile_opencv.diff.

[ryandesign (Ryan Carsten Schmidt)]

Josh fixed it a different way in [450fe0e68259ecd0756dd2949307723266ffdc04/macports-ports].