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R4R: Store Refactor #2344

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wants to merge 22 commits into from
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R4R: Store Refactor #2344

wants to merge 22 commits into from

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mossid
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@mossid mossid commented Sep 15, 2018 •
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Closes: #2309

  • Targeted PR against correct branch (see CONTRIBUTING.md)

  • Linked to github-issue with discussion and accepted design OR link to spec that describes this work.

  • Wrote tests

  • Updated relevant documentation (docs/)

  • Added entries in PENDING.md with issue #

  • rereviewed Files changed in the github PR explorer

  • Each store has moved to their own folder
  • Store related files, such as gas.go, store.go, are moved to store/
  • types/ imports store/ now and reexports types/functions
  • Remove StoreType enum, instead StoreKeys are dependent on concrete store implementation
  • Made some code duplication at errors.go to reduce dependency
  • traceWriter io.Writer and traceContext TraceContext are merged into Tracer
  • meter GasMeter and config GasConfig are merged into GasTank
  • Store interfaces are refactored:
            KVStore         CommitStore          MultiStore              ^
           /        \         /        \           /       \             |
         /            \     /            \       /          \            |  embeds
CacheKVStore    CommitKVStore    CommitMultiStore    CacheMultiStore     *

For Admin Use:

  • Added appropriate labels to PR (ex. wip, ready-for-review, docs)
  • Reviewers Assigned
  • Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

@mossid mossid added the wip label Sep 15, 2018
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codecov bot commented Sep 16, 2018 •
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Codecov Report

Merging #2344 into develop will decrease coverage by 0.3%.
The diff coverage is 70.77%.

@@             Coverage Diff             @@
##           develop    #2344      +/-   ##
===========================================
- Coverage    58.82%   58.51%   -0.31%     
===========================================
  Files          152      144       -8     
  Lines         9425     8213    -1212     
===========================================
- Hits          5544     4806     -738     
+ Misses        3511     3091     -420     
+ Partials       370      316      -54

@cwgoes cwgoes self-assigned this Oct 3, 2018
@mossid mossid changed the title WIP: Store Refactor R4R: Store Refactor Oct 3, 2018
@mossid mossid changed the title R4R: Store Refactor WIP: Store Refactor Oct 7, 2018
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cwgoes commented Oct 25, 2018 •
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@mossid Do you want to rebase this? I still think the refactor is a great idea and would be happy to review (sorry it didn't happen sooner)!

@cwgoes cwgoes mentioned this pull request Oct 28, 2018
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@mossid mossid requested a review from zramsay as a code owner October 29, 2018 17:19
@sunnya97 sunnya97 changed the title WIP: Store Refactor R4R: Store Refactor Oct 30, 2018
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cwgoes commented Nov 1, 2018

@mossid Thanks for rebasing. Let's pair review this in person, maybe early next week.

alexanderbez
alexanderbez reviewed Nov 1, 2018
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@mossid this PR is pretty hefty...I really don't know how to start as I'm sure I'll miss something. May I suggest perhaps breaking it up into sub PR (I, II, III, etc...) if possible?

Thoughts @ValarDragon?

baseapp/baseapp.go
@@ -115,7 +115,7 @@ func (app *BaseApp) Name() string {
// SetCommitMultiStoreTracer sets the store tracer on the BaseApp's underlying
// CommitMultiStore.
func (app *BaseApp) SetCommitMultiStoreTracer(w io.Writer) {
app.cms.WithTracer(w)
app.cms.GetTracer().Writer = w
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The initial API call was bad and that's my fault. Can we just do app.cms.SetTracer(w)?

cmd/gaia/app/app.go
keyMain *sdk.KVStoreKey
keyAccount *sdk.KVStoreKey
keyStake *sdk.KVStoreKey
keyMain *sdk.IAVLStoreKey
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Mhmmm, why did we rename these? This assumes IAVL usage, although it probably won't change for Gaia.

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I don't want us to have this key... an IAVLStore is a KVStore... no need to create key types for specific types of KVStores. In the future we may have other store types like HeapStores.

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lol this PR is gigantic

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rigelrozanski commented Nov 29, 2018 •
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@mossid way out of date - please update, we should get this in

@cwgoes cwgoes mentioned this pull request Nov 30, 2018
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@mossid mossid mentioned this pull request Dec 3, 2018
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mossid commented Dec 3, 2018

Closing in favor of #2986

@mossid mossid closed this Dec 3, 2018
@mossid mossid deleted the joon/2309-store-refactor branch December 3, 2018 19:19
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@mossid @cwgoes @fedekunze @rigelrozanski @jaekwon @alexanderbez @sunnya97