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On Sat, 5 Feb 2011 18:05:05 meino.cramer@×××.de wrote: |
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> Hi, |
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> |
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> I want to do the following as fast as possible and with less |
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> system load as possible: |
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> |
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> There are two directories called 'source' and 'target'. |
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> |
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> 'source' gets updated via 'svn up', then it gets compiled. |
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> Since there is no "make install" or similiar, installation |
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> is done via copying 'source' to 'target'. A symlink from |
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> /usr/local/bin/<name> to the compiled executabe in (now) |
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> 'target' completes the installation. |
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> |
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> BUT: |
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> 'source' is a VERY big directory and copying it to 'target' |
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> after each svn up is a PAIN. |
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> |
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> Now I need a copy mechanism which does the following: |
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> * copy all files with newer date to 'target' -- this can be done via |
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> 'cp -u' |
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> * copy all files which only exist in 'source' to 'target' -- |
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> this can be done also with 'cp -u' |
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> * BUT: Delete all files from 'target' which do not longer exist in |
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> 'source' |
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> |
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> The last point gives me headaches. Scanning both directory after |
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> 'cp -u' has done its job may take as long as a "blind copy" from |
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> 'source' to 'target' after 'target' was initially removed. |
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> |
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> Is there any "lean method" to do what is described above ? |
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> |
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> Thank you very much for any help in advance! |
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> Best regards, |
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> mcc |
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|
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|
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The tool you are looking for is 'rsync'. |
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-- |
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Reverend Paul Colquhoun, ULC. http://andor.dropbear.id.au/~paulcol |
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Before you criticize someone, you should walk a mile in their shoes. |
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Then, when you do, you'll be a mile away, and you'll have their shoes. |
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