Support multiple -git-path arguments

[squaremo]

The idea is to let people overlay bits of configuration by supplying more than one --git-path argument.

Much of the machinery for dealing with manifest files (and directories) already expected more than one path; but, it wasn't necessarily convenient to supply all of them in one go, so I've updated the Manifests interface and followed that through.

The git path appears in API results -- it's just an opaque string, though, so joining the now multiple paths and returning that should be fine.

Fixes #1267.

[squaremo]

it's just an opaque string, though, so joining the now multiple paths and returning that should be fine.

This is not quite true; if you round-trip this, and supply comma-delimited paths as the value for --git-path, it won't work. You need to break it into multiple --git-path arguments.

EDIT: Nope, right the first time. I fooled myself by applying a weave cloud config, which of course uses the released daemon and thus doesn't understand this argument.

[rndstr]

Code LGTM!

[squaremo]

Rebassed and cliffhanger comment resolved.

[stephenmoloney]

Just wondering:

1. if the docs show how this works ?

2. If there is an open issue to support something similar for the helmOperator ? (found the relevant issue here

[squaremo]

1. if the docs show how this works ?

Possibly only the usage message :-S