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Joe Peterson wrote: |
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> |
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> No, I have not profiled PMs to try this, but you are saying that reading |
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> the first few lines of a file is not faster than sourcing the whole |
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> thing with bash? Remember that it could abort the minute it sees a non |
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> '#' or blank line, which would be after the first few. |
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> |
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Actually, if you specified that the EAPI goes on the first line, then |
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you'd only need to read the first line. |
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And to the extent that the rest got read into memory anyway by the |
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kernel, well then it is already in the cache when whatever mechanism is |
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invoked to parse the rest of the file. |
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I don't think that filename-vs-first-line is going to make a big |
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difference in practical performance. Any time lost in determining EAPI |
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would be time saved in parsing the file. And even though you could |
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ignore unknown EAPIs, I think that in a typical case users would be |
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using an up-to-date package manager that would just end up parsing |
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everything all the time anyway. |
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-- |
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