Shouldn't COPY still use cache?

higlass / higlass-docker

Builds a docker container wrapping higlass-server and higlass-client in nginx

MIT License

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Shouldn't COPY still use cache? #45

Open mccalluc opened 7 years ago

mccalluc commented 7 years ago

Step 26/37 : USER root
 ---> Using cache
 ---> 8403937eee6e
Step 27/37 : COPY supervisord.conf .
 ---> a6c5e1342c98 # apparently not using cache?

I thought there was something where, if the timestamp on the file hadn't changed, it could just use the cached layer? These are all at the end, and they run quickly, but it'd be good to understand what's going on.