[Scons-dev] scanning before emitting

[William Blevins]

The emitter should only return the outputs of the protoc call, so java,
cpp, or python files, correct? The emitter isn't supposed to output (for
example) the java class files; thus, I don't know why you would run the
scanner at all.

V/R.
William

On Mon, May 9, 2016 at 7:25 PM, Schleimer, Ben via Scons-dev <
scons-dev at scons.org> wrote:

> Hi,
>    I was working with another developer on the protoc tool (located at
> https://github.com/TheOstrichIO/sconseries/blob/master/site_scons/site_tools/protoc.py)
> and the question of scanning for recursive protobuf "import" statements
> came up.
>
> The issue is whether SCons naturally supports recursive scanning before
> emitting. From my tests, I found that the scanner always runs after the
> emitter and is only used to check if the dependency needs to be rebuilt or
> not.
>
> I hacked around this issue by recursively calling the scanner inside the
> emitter but I am wondering if this is the best way to solve this problem.
> (I can share my modified code if you want)
>
> Thanks!
> Ben
>
> PS. the 'recursive' argument in Scanner() doesn't seem to help :-(
>
>
>
>
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