Hi Jason (and list), To be clear, I'm not proposing that that particular signature function should become part of SCons. What I want to add to the "core" SCons code is the necessary set of hooks to accept and run user-supplied signature-generating functions. Indeed, the whole point is to allow users to supply something which we wouldn't want _in general_, but is right for their needs. I see this as the missing half of the user-specified Decider: You can write a much broader range of functions if you can ensure that whatever information your decider needs has been gathered.
In my particular situation, the build tools themselves cause "spurious" changes to the source files. Unless those changes are somehow filtered out, the files are _always_ changed, so a false rebuild occurs every single time. That's mostly an issue of poor tool design, but I'm stuck with it. -Eric Thus spake Kenny, Jason L ([email protected]): > Interesting idea. However here are some cons to consider. > > 1) this will take longer to process ( increase startup time) as one has to > parse the file for a certain type of comment(s) > 2) a number of tools process values that are in the comments > > In your case you point out how a comment that is updated by a VCS tool with a > value of a new date, etc can cause a false rebuild of the code. That same > value can be used by another tools to make documentation updates, or define > many other values. Maybe in your case this is not so. You are suggesting that > we have a tool based MD5 for a given node... i.e. I want a MD5 only of the > content that the tool cares about, which could be one or more different > signature per node. > > Jason > _______________________________________________ > Scons-dev mailing list > [email protected] > http://two.pairlist.net/mailman/listinfo/scons-dev -- Eric W. Anderson Electrical and Computer Engineering [email protected] Carnegie Mellon University phone: +1-412-268-1908 Roberts Hall 244 PGP key fingerprint: D3C5 D6FF EDED 9F1F C36D 53A3 74B7 53A6 3C74 5F12
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