Use incremental formatting internally for dprint #6815
Merged
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This change causes dprint to only format files that have changed since it last ran.
Previously: ~5s
Now: ~2.6s after first format. Still previous for first run (no noticeable overhead). Of the overall time of format.py, 0.1s is spent on dprint after first run.
I am working on "process plugins" in dprint, which should allow us to get overall formatting time down to under half a second eventually and allow us to remove some code/dependency management in Deno.