This explains the data available to the commit message template in the
API guide. While writing it, I realised it could be made more
convenient, so:
- mask external types by embedding them
- make the most useful parts of an image ref available using a
wrapper struct and interface
Signed-off-by: Michael Bridgen <michael@weave.works>
This commit:
- passes a value including the update result to the commit message
template
- gives the template result a method for enumerating the
objects regardless of file
This means you can access the images updated either by file
(`.Files`), by object (`.Objects()`), or just as a list
(`.Images()`). The additional test case shows how to use these.
Signed-off-by: Michael Bridgen <michael@weave.works>
Michael Bridgen