How to import patch from jdk/jdk

[Roman Kennke]

> On 12/08/2019 09:05, Severin Gehwolf wrote:
>> Hi,
>>
>> On Sat, 2019-08-10 at 16:58 +0200, Laurent Bourgès wrote:
>>> Ok,
>>> I will use sed on the patch file to fix paths, then I will import it. I
>>> thought such sed script already exist or mercurial or linux patch command
>>> already manage that.
>>
>> You could try common/bin/unshuffle_patch.sh from JDK 9[1].
>>
>> Thanks,
>> Severin
>>
>> [1] http://hg.openjdk.java.net/jdk-updates/jdk9u/file/1b1226687b89/common/bin/unshuffle_patch.sh
>>
> 
> If the patch was committed to jdk/jdk or jdk-updates/jdk11 (as opposed
> to being an older jdk9 patch), it usually needs both the jdk11 script
> [0] (to move the files back into their subrepos, jdk11->jdk9) and the
> jdk9 script [1] (to get rid of the modules, jdk9->jdk8). Both scripts
> need data files from the same directory, so checking out the repos is
> probably the easiest option.
> 
> All this file movement is a major PITA.
> 
> [0]
> https://hg.openjdk.java.net/jdk-updates/jdk11u/file/tip/bin/unshuffle_patch.sh
> [1]
> https://hg.openjdk.java.net/jdk-updates/jdk9u/file/tip/common/bin/unshuffle_patch.sh
> 

It looks like it should be possible to use this in conjunction with hg
transplant --filter to transplant patches between versions.

https://www.mercurial-scm.org/wiki/TransplantExtension

Roman