Re: replacing a build dependency system with gump

Tue, 21 Jan 2003 10:54:42 -0800 

Sam Ruby wrote:


Nick Chalko wrote:




As to your specific proposal, I'm concerned about co-evolution.  
Suppose a new Jelly tag requires something to be added to the core 
of Jelly. Since this tag will either be released concurrently with, 
or after Jelly is, this is not a problem.  However, suppose one day 
somebody forgets a semicolon in a commit to Jelly...





My proposal would be option say   gen.sh  --downloadNotDrop That way 
people can use gump on whatever subset they want





If I understand the proposal, the hypothetical tag would compile clean 
for a period of time, except when the jelly core failed to compile, at 
which point an old version of jelly would be downloaded and the taglib 
compile would fail.



I don't object to the proposal, but in my mind there is a differnce 
between not having downloaded cryptix and jelly failing to compile.



FYI: quite a ways back, Geir had a suggestion for the latter scenario. 
The suggesion was that gump save the jars from prior runs and use them 
instead.  In many ways, this is mostly implemented... there is a 
jardir attribute on the workspace, and the dependency checking logic 
simply checks for existence of the jars, not their dates.



My idea was on  downloading project not in the workspace.  


For example  
<project name="foo" />

   <depend project="log4j" />

   <depend project="bar" repository="maven"/>

</project>





Normally gen.sh  would say something like

project foo dropped  beacuse dependent project bar not found.



gen.sh --downloadNotDrop

would instead say

project bar added to list of download jars.



And then use reperDepend  to get the latets jars for  all "not found" 
projects.












- Sam Ruby



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--
Nick Chalko                                         Show me the code.
                         Centipede
 Ant + autodownloadable build plugins + needed jars autodownload.
             http://krysalis.org/centipede
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