Ian Hickson f92f71feb9 Lock flutter tool while updating artifacts (#4476)
This prevents multiple simultaneous runs of the analyzer from stomping
over each other (e.g. multiple runs of 'update-packages'). Certain
long-lived commands (like analyze, run, logs) are exempted once they've
done enough work to be safe from most stomping action.

This still doesn't make us entirely safe from craziness, e.g. if you're
half way through an 'update-packages' run and you call 'git pull', who
knows what state you'll end up in. But there's only so much one can do.

Fixes https://github.com/flutter/flutter/issues/2762
2016-06-14 10:16:08 -07:00
2016-04-08 10:25:41 -07:00
2016-03-25 20:17:22 -07:00
2016-03-23 21:06:37 -07:00

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