[Scons-users] Newbie question

[Roger Day]

Agree.
 
The problem I got is the developers I work are also applications-support with access to the production servers. They are liable to change things; so it would be nice to force the install of anything that's changed on the target.
 
I saw some code regarding configs. I'll look at that.
 
Roger


Roger Day
Application Developer
DST Output
 
Tel: 01454 848 836

Web: www.dstoutput.co.uk
 
https://twitter.com/DST
________________________________


From: scons-users-bounces at scons.org [mailto:scons-users-bounces at scons.org] On Behalf Of Dirk Bächle
Sent: 04 November 2013 17:16
To: scons-users at scons.org
Subject: Re: [Scons-users] Newbie question


Hi Roger,

On 04.11.2013 12:53, Roger Day wrote:


	Hi, 

	I'm having difficulty trying to the following: 

	1. Checkout a file 
	2.  Install file 
	2. Modify the installed file 
	3. Over-ride the installed file with the previously checked out file. 

	I've read that SCONS uses MD5 checksums, but I can't get the subsequent installed file to be overwritten with the original file. Is there any way I can force this?



SCons isn't a VCS, and it tracks dependencies for a target based on MD5 checksums of its sources as default. This doesn't include the target itself. After SCons successfully created a target (the installed file in your case) it assumes that this file is up-to-date until:

a) it doesn't exist anymore, or
b) one of its source files changed its content/timestamp.

If you manually change a target after the actual build, SCons won't detect this. It always assumes to have full control over the build.

Can't you simply checkout the file in question to the "install" location?

Best regards,

Dirk



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