[MacPorts] #63613: port install: fetch shouldn't abort the whole command on a 503 error

[MacPorts]

#63613: port install: fetch shouldn't abort the whole command on a 503 error
--------------------------+--------------------
  Reporter:  greyhare     |      Owner:  (none)
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:  2.7.1
Resolution:               |   Keywords:
      Port:               |
--------------------------+--------------------

Comment (by ryandesign):

 Replying to [comment:2 greyhare]:
 > Whatever was going on server side is cleared now. (Maybe I caught it
 recomputing checksums? Or checksum files aren't really there, but are
 computed, cached, and served by a script, which broke?

 No. The .rmd160 files are generated right after the .tbz2 archives arrive
 on the buildmaster. The .rmd160 files exist on the filesystem right next
 to the .tbz2 files and all of the files are synchronized via rsync across
 our various mirror servers.

 > Or it was a temporary misconfiguration?)

 The public packages/distfiles servers are all managed by other entities,
 so I cannot say what configuration changes might have been happening on
 those servers.

 > But it was occurring for a number of packages I was trying to upgrade
 with `sudo port upgrade outdated`.
 >
 > In any case, maybe have *any* fetch error bail out to the next download
 site?

 The code in question is here:

 https://github.com/macports/macports-
 base/blob/master/src/package1.0/portarchivefetch.tcl#L259-L289

 Anyone may submit pull requests to improve the code.

-- 
Ticket URL: <https://trac.macports.org/ticket/63613#comment:3>
MacPorts <https://www.macports.org/>
Ports system for macOS