[MacPorts] #14452: select.sh produce unneeded warnings when the only option is "-n"

[MacPorts]

#14452: select.sh produce unneeded warnings when the only option is "-n"
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  Reporter:  ebgssth@…          |       Owner:  raimue@…                          
      Type:  enhancement        |      Status:  closed                            
  Priority:  Normal             |   Milestone:  Port Enhancements                 
 Component:  ports              |     Version:  1.6.0                             
Resolution:  fixed              |    Keywords:  gcc_select python_select select.sh
      Port:                     |  
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Changes (by raimue@…):

  * status:  new => closed
  * resolution:  => fixed


Old description:

> {{{
> $ python_select -n
> /opt/local/bin/python_select: line 83: [: ==: unary operator expected
> /opt/local/bin/python_select: line 83: [: ==: unary operator expected
> /opt/local/bin/python_select: line 83: [: ==: unary operator expected
> /opt/local/bin/python_select: line 83: [: ==: unary operator expected
> version "" is invalid!
> }}}
>
> easy fix would be
> {{{
> -                 if [ ${1} == ${version} ]; then
> +                if [ x${1} == x${version} ]; then
> }}}
>
> might be better to stop script when python_select called with -n only

New description:

 {{{
 $ python_select -n
 /opt/local/bin/python_select: line 83: [: ==: unary operator expected
 /opt/local/bin/python_select: line 83: [: ==: unary operator expected
 /opt/local/bin/python_select: line 83: [: ==: unary operator expected
 /opt/local/bin/python_select: line 83: [: ==: unary operator expected
 version "" is invalid!
 }}}

 easy fix would be
 {{{
 -                 if [ ${1} == ${version} ]; then
 +                if [ x${1} == x${version} ]; then
 }}}

 might be better to stop script when python_select called with -n only

--

Comment:

 Fixed with python_select 0.2 in r44662.

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Ticket URL: <http://trac.macports.org/ticket/14452#comment:6>
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