[MacPorts] #48439: port selfupdate - privileges error message

[MacPorts]

#48439: port selfupdate - privileges error message
------------------------------------+--------------------------------
 Reporter:  grunermonzon@…          |      Owner:  macports-tickets@…
     Type:  enhancement             |     Status:  new
 Priority:  Low                     |  Milestone:
Component:  base                    |    Version:  2.3.3
 Keywords:  selfupate, permissions  |       Port:
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 When trying to run selfupdate without the appropriate privileges, a
 cryptic message prints out:
 {{{
 --->  Updating MacPorts base sources using rsync
 receiving file list ... done
 rsync: mkstemp
 "/opt/local/var/macports/sources/rsync.macports.org/release/tarballs/.base.tar.d146Xp"
 failed: Permission denied (13)
 inflate returned -3 (19 bytes)
 rsync error: error in rsync protocol data stream (code 12) at
 /SourceCache/rsync/rsync-45/rsync/token.c(419) [receiver=2.6.9]
 rsync: connection unexpectedly closed (31 bytes received so far)
 [generator]
 rsync error: error in rsync protocol data stream (code 12) at
 /SourceCache/rsync/rsync-45/rsync/io.c(453) [generator=2.6.9]
 Command failed: /usr/bin/rsync -rtzv --delete-after
 rsync://rsync.macports.org/release/tarballs/base.tar
 /opt/local/var/macports/sources/rsync.macports.org/release/tarballs
 Exit code: 12
 Error: Error synchronizing MacPorts sources: command execution failed
 To report a bug, follow the instructions in the guide:
     http://guide.macports.org/#project.tickets
 Error: /opt/local/bin/port: port selfupdate failed: Error synchronizing
 MacPorts sources: command execution failed
 }}}

 Other commands, such as install, perform a safe check before and print out
 a nice message
 {{{
 Error: Insufficient privileges to write to MacPorts install prefix.
 }}}

 I thought it would be a nice enhancement to check for the appropriate
 privileges when running self update, such as install does.

-- 
Ticket URL: <https://trac.macports.org/ticket/48439>
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