Bug 10584

Summary: rm_work.bbclass: reduce maximum amount of disk space required for a build
Product: [Build System, Metadata & Runtime] OE-Core Reporter: Patrick Ohly <patrick.ohly>
Component: devtools / tool chainAssignee: Patrick Ohly <patrick.ohly>
Status: RESOLVED FIXED QA Contact:
Severity: enhancement    
Priority: Medium CC: meta.mr.watcher, meta.watcher
Version: 2.3   
Target Milestone: 2.3   
Hardware: x86   
OS: Multiple   
Whiteboard:
OS type for building Yocto: --- Type of Regression: ---
Verified: Documentation change: No (bug/feature does not impact docs)
Bug Depends on:    
Bug Blocks: 10799    

Description Patrick Ohly 2016-11-02 15:01:17 UTC 
rm_work.bbclass is not as efficient as it could be: because do_rm_work runs only after do_build of the current recipe and all recipes it depends on, recipes do not get cleaned as soon as possible. As a result, building OE-core with just 20GB times of disk space fails because required spaces exceeds that temporarily.

With enhancements it is possible to build OE-core with less than 20GB. Proof-of-concept code is in https://github.com/pohly/poky/commits/rmwork

Open question: a clean way of injecting do_rm_work into recipes is needed, which might depend on bitbake enhancements.