Unable to install rb-rubygems

[jpmelko]

Upgrade of rb-poppler fails
Bacchus:~ root# port upgrade rb-poppler
--->  Computing dependencies for rb-rubygems
--->  Staging rb-rubygems into destroot
Error: Failed to destroot rb-rubygems: command execution failed
Error: See /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_ruby_rb-rubygems/rb-rubygems/main.log for details.
Error: Problem while installing rb-rubygems
Error: Follow https://guide.macports.org/#project.tickets to report a bug.

[mf2k (Frank Schima)]

In the future, please use WikiFormatting, fill in the Port field and add the port maintainer(s) to Cc (port info --maintainers rb-rubygems), if any.

[mf2k (Frank Schima)]

Error appears to be:

debug:destroot system:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_ruby_rb-rubygems/rb-rubygems/work/rubygems-1.3.7" && /opt/local/bin/ruby${ruby.default_branch} setup.rb install --prefix=/opt/local --destdir=/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_ruby_rb-rubygems/rb-rubygems/work/destroot --vendor --no-format-executable DESTDIR=/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_ruby_rb-rubygems/rb-rubygems/work/destroot
:info:destroot sh: /opt/local/bin/ruby${ruby.default_branch}: bad substitution

[ryandesign (Ryan Carsten Schmidt)]

I suspect the ruby-1.0 portgroup needs further fixes to accommodate the new way that MacPorts 2.5.4 and later handles default; see 8434c0eee6ba2867c09524697d6f95f3a095ddf0/macports-base.

The usual problem was that uses of default were double-quoted, and for MacPorts 2.5.4 and later it was changed to single-quoting.

The ruby-1.0 portgroup is different and doesn't double-quote its defaults. It didn't even single-quote one of them, which was changed when the ​portgroup was updated for this base change. But maybe further changes are needed.

[jmroot (Joshua Root)]

This is because there are two traces on ruby.bin: the one set up by default and the one set up by option_proc. Using both is unnecessary and confusing.

[jmroot (Joshua Root)]

In 1103a4a4e5da425bacf0b1ed48c158e8b1bfe97a/macports-ports (master):

ruby portgroup: fix unexpanded variable

Closes: #57230