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On Tue, 10 Jun 2008 07:49:31 -0600 |
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Joe Peterson <lavajoe@g.o> wrote: |
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> > No, it doesn't make parsing faster. Had you bothered to profile |
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> > any package manager you'd know that. |
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> |
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> No, I have not profiled PMs to try this, but you are saying that |
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> reading the first few lines of a file is not faster than sourcing the |
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> whole thing with bash? Remember that it could abort the minute it |
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> sees a non '#' or blank line, which would be after the first few. |
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The package manager does not currently source the whole thing with |
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bash to get the EAPI, nor does it open the ebuild file at all for |
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metadata. You're talking doubling the number of file operations here, |
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and going from extremely good filesystem locality (which means very few |
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seeks) to jumping backwards and forwards all over the place. |
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This is basic stuff you really need to know before you can comment |
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sensibly on a discussion about package metadata. |
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-- |
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Ciaran McCreesh |
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