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metadata-store: never crash fetching group metadata

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In order to track & respond to all group-related metadata, hooks may
want to subscribe to the metadata-store in response to group creation.
In that case it is possible that there are no entries for the group-path
in group-indices yet.

This makes us fall back to the empty set in case group-indices has no
entry for the group-path yet.
This commit is contained in:
Fang 2020-03-01 01:40:06 +01:00
parent 0658367aaf
commit 115fd1c14c
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1 changed files with 1 additions and 1 deletions
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2
pkg/arvo/app/metadata-store.hoon
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@ -182,7 +182,7 @@
|= =group-path
^- ^associations
%- ~(gas by *^associations)
%+ turn ~(tap in (~(got by group-indices) group-path))
%+ turn ~(tap in (~(gut by group-indices) group-path ~))
|= =resource
:- [group-path resource]
(~(got by associations) [group-path resource])