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From "Jacques Le Roux (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OFBIZ-7962) Migrate the patch management Ant targets
Date Fri, 19 Aug 2016 20:55:22 GMT

    [ https://issues.apache.org/jira/browse/OFBIZ-7962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15428793#comment-15428793
] 

Jacques Le Roux commented on OFBIZ-7962:
----------------------------------------

Actually by patching entityengine.xml you can achieve most of the database setup. I never
missed anything about that, nor with other environment factors (logging, external services
URLs, etc.) Essentially you can do everything with patching, as you can do everything with
assembler. Thanks to diff an patch we now live in a solid open source world :) But I agree
patching has its limits (patching on patches is not possible, and if you need to introduce
patch versionning things begin to be very complex)

And you are right, you need to be very careful about collisions ("override / conflict with
other components."), actually any sorts. Note thoug that this is not something which will
magically dissapear with a Gradle implentation of plugins, it will still depend on users awareness.
But I totally agree that the plugins way is certainly better and safer from this perspective.

Finally, if we are sure to have *similarly strong* "java-based diff libraries or other solutions
that are independent of surrounding environment." then I also agree we have better foundations
than those I used to build in 2014 the "patch management with Ant targets". They were indeed
static and based only on patch command (or svn patch). It was pragmatic, was working well
but limited and was difficult to implement to work on both Win and *nix platforms. With a
plugins solution we should reach the next level which for me means "dynamic patching", with
also its own issues, like dependencies between plugins...

When your PoC will be ready we can join forces to eventually have a better replacement for
those, looking forward !

I wonder though if after all, we will not still need, or at least find convenient, to use
patches at some moments, it's so simple ;)

> Migrate the patch management Ant targets
> ----------------------------------------
>
>                 Key: OFBIZ-7962
>                 URL: https://issues.apache.org/jira/browse/OFBIZ-7962
>             Project: OFBiz
>          Issue Type: Sub-task
>          Components: ALL COMPONENTS
>    Affects Versions: Trunk
>            Reporter: Jacques Le Roux
>             Fix For: Upcoming Branch
>
>
> We need to migrate the patch management Ant targets which are documented at https://cwiki.apache.org/confluence/display/OFBIZ/Addressing+Custom+Requirements+In+OFBiz#AddressingCustomRequirementsInOFBiz-PatchManagementUsingGradleTargets



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