[Scons-users] check target must be build / is up-to-date

[Bill Deegan]

Phil,

A better solution is likely to not clean the downloaded file, then your
download step can get the date of the binary to be downloaded, and compare
that against the last downloaded file.

-Bill


On Sat, Jun 22, 2013 at 2:44 AM, Philipp Kraus
<philipp.kraus at flashpixx.de>wrote:


> On 2013-06-21 01:25:48 +0200, Bill Deegan said:

>

>  I take it that you are removing the downloaded file with your extract

>> logic then?

>>

>

> My last answer isn't published yet, so I post it again.

>

> Yes after I have downloaded the files, extract (cand compiled) the data, I

> do a clean or remove the downloaded

> files manually. So SCons do the correct job, if all is cleaned it

> installed the data again.

> My dependiecies are shown:

>

> url => downloaded file => extracted files => compiled binary => installed

> binary

>

> So I would like to create a check (?), that if the binary is installed and

> the URL is up-to-date, that SCons marked

> the targets as "up-to-date". So I need a flag / information which can

> store this information.

> For my example in detail I download the boost library (actual release is

> 1.53). So the URL is known and I installed

> the library under my project dir in <project dir>/library/boost/1.53/

> So if the URL returns a version and this version exists in my library dir,

> there is nothing to do for SCons.

>

> But thanks Bill, your question is the solution. I miss the forest for the

> trees, my URL function, that reads the download

> URL returns also the version and I need to check if the directory exsists,

> if it exists, I need not to create any build calls.

>

>

> Phil

>

>

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