[MacPorts] #5063: RFE: sped up dependency searching and added dependent finding

[MacPorts]

#5063: RFE: sped up dependency searching and added dependent finding
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  Reporter:  erickt@…               |       Owner:  macports-tickets@…                   
      Type:  enhancement            |      Status:  closed                               
  Priority:  Normal                 |   Milestone:  MacPorts Future                      
 Component:  base                   |     Version:                                       
Resolution:  fixed                  |    Keywords:                                       
      Port:                         |  
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Changes (by jmr@…):

 * cc: erickt@… (added)
  * status:  new => closed
  * resolution:  => fixed


Old description:

> Hello All,
>
> I whipped up a little patch to darwinports to figure out what packages
> depend on a particular port
> (opposite to the deps command). This allows some nice things. In
> addition, I've added a mode -R to the
> upgrade command that if specified, should rebuild all of the ports that
> depend on the one we're
> upgrading. I could also see having something similar to be added to the
> uninstall, but I haven't gotten
> around to that yet.
>
> Finally, in order to make this usable, I had to speed up the loading of
> the portindex file. Previously,
> each time you did a dportsearch, each source file would have to be
> walked. Since I have to build a list of
> all the dependencies, I had to walk each file for each installed port. So
> to optimize this, I read each file
> once, and throw all the results into an array. All my testing appeared
> that this provided the same
> functionality, but I'm not sure if some other command modifies these
> files while port is running, so it'd
> break that functionality.
>
> I've attached diffs for port.tcl and darwinports.tcl. Thanks!
>
> -e

New description:

 Hello All,

 I whipped up a little patch to darwinports to figure out what packages
 depend on a particular port
 (opposite to the deps command). This allows some nice things. In addition,
 I've added a mode -R to the
 upgrade command that if specified, should rebuild all of the ports that
 depend on the one we're
 upgrading. I could also see having something similar to be added to the
 uninstall, but I haven't gotten
 around to that yet.

 Finally, in order to make this usable, I had to speed up the loading of
 the portindex file. Previously,
 each time you did a dportsearch, each source file would have to be walked.
 Since I have to build a list of
 all the dependencies, I had to walk each file for each installed port. So
 to optimize this, I read each file
 once, and throw all the results into an array. All my testing appeared
 that this provided the same
 functionality, but I'm not sure if some other command modifies these files
 while port is running, so it'd
 break that functionality.

 I've attached diffs for port.tcl and darwinports.tcl. Thanks!

 -e

--

Comment:

 It looks like everything applicable here has been done.

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Ticket URL: <http://trac.macports.org/ticket/5063#comment:23>
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