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Am Montag, 28. Juni 2021, 15:03:59 CEST schrieb Michał Górny: |
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> On Mon, 2021-06-28 at 15:00 +0200, Agostino Sarubbo wrote: |
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> > Hello all, |
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> > |
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> > long story short: |
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> > |
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> > when there is a major change (new gcc, new libc, and so on), tinderbox |
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> > takes a lot of time to test the entire tree. |
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> > |
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> > Let's do a practical example: |
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> > A new version of sys-devel/gcc is added to the tree. |
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> > |
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> > There is no way to know how much packages compiles C/C++ code, so the |
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> > easiest way is compile the entire tree. |
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> > |
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> > Instead, imagine that each ebuild declares a variable called SOURCETYPE ( |
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> > or similar, or in metadata.xml if you prefer ) and with a tool like |
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> > equery/eix we are able to get the list of all packages that compiles C |
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> > code. |
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> > |
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> > The same thing applies to other languages like python, ruby, go and so on |
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> > where compile the dev-$language category covers a lot of packages, but |
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> > there will be always other ebuilds that uses $language in other |
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> > categories. |
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> > |
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> > What do you think? |
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> |
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> It's a worthwhile goal but it's practically impossible to get it right. |
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> For example, right now we've had quite a few cases of Python ebuilds |
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> wrongly declaring <stabilize-allarches/>, i.e. people missing use of C |
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> besides Python. |
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> |
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> That is, unless you can figure out a way for Portage to reliably detect |
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> SOURCETYPE and tell people what to set. |
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When I read this my initial idea was like that: |
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-if SOURCETYPE is not given it is assumed to be *, i.e. the package depends on |
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any language when rebuilding much like it would be now |
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-if SOURCETYPE is given then tc-getcc and friends would start returning /bin/ |
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false for every language compiler not enabled, or better just call die |
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-similarly CC, CXX and friends are exported to /bin/false, which should catch |
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a lot of ebuilds that use the compilers without using tc-get* now |
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Sounds like EAPI=9 ;) |
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For now one could stuff this into an eclass to get the ebuilds right until |
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portage actually makes use of the variable to simplify the build tree. |
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Eike |
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