snapcraft trggers unnecessary pulls from unrelated file modifications

Metadata

Project: snapcraft (launchpad)
Number: #1793471
Type: issue
State: open
Author: ~aleks.bogdanov
Labels: 18.10-build-caching
Created: 2018-09-20 08:21:44.490723+00:00
Updated: 2018-09-20 08:21:44.490723+00:00
Closed: —

Current evaluation

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Issue body

when working in an InteliJ IDEA based IDE or VSCode, or even simply having changes in .git directory, `snapcraft` marks stages as stale, which causes unnecessary re-pulls and re-builds, which slows down e.g npm packaging. I propose to add .snapignore file support, to allow developers to exclude files included in a snap and as such known to not invalidate packaging steps.

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