375751 – Allow ROOT=/prefix steps to reuse binary packages created for ROOT=/ during previous steps of the same emerge run

Bug 375751 - Allow ROOT=/prefix steps to reuse binary packages created for ROOT=/ during previous steps of the same emerge run

Summary: Allow ROOT=/prefix steps to reuse binary packages created for ROOT=/ during p...

Status:	CONFIRMED

Alias:	None

Product:	Portage Development
Classification:	Unclassified
Component:	Conceptual/Abstract Ideas (show other bugs)
Hardware:	All Linux

Importance:	Normal enhancement (vote)
Assignee:	Portage team

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Depends on:
Blocks:	137867
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Reported:	2011-07-20 10:18 UTC by Dennis Schridde
Modified:	2011-07-20 15:01 UTC (History)
CC List:	0 users

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Runtime testing required:	---

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Description Dennis Schridde 2011-07-20 10:18:14 UTC

Often during emerging for ROOT=/prefix/... the same package is first build for ROOT=/ and then again for ROOT=/prefix/... It would be nice if portage could reuse the previously build binpkgs.

Possible problems:
* The build for ROOT=/ happens during the same run of emerge. Hence no dependency recalculation happens in between.

Possible solutions (alternatives):
* Know in advance that a binpkg will be build during a certain step and consider this for the following steps.
* Search in each step for binpkgs before starting the actual merge.
* ... your idea ...

Reproducible: Always