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Tracker Factory for dependency injection #1327

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merged 5 commits into from Jul 19, 2019

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@gdbelvin
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commented Jul 19, 2019

Allow callers of NewFromConfig to supply a tracker factory.

Tracker Factory for dependency injection
Allow callers of NewFromConfig to supply a tracker factory.

@gdbelvin gdbelvin requested a review from google/keytransparency as a code owner Jul 19, 2019

@googlebot googlebot added the cla: yes label Jul 19, 2019

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commented Jul 19, 2019

Codecov Report

Merging #1327 into master will increase coverage by 0.04%.
The diff coverage is 10.71%.

Impacted file tree graph

@@            Coverage Diff            @@
##           master   #1327      +/-   ##
=========================================
+ Coverage   30.26%   30.3%   +0.04%     
=========================================
  Files          48      48              
  Lines        3873    3867       -6     
=========================================
  Hits         1172    1172              
+ Misses       2519    2513       -6     
  Partials      182     182
Impacted Files Coverage Δ
core/monitor/monitor.go 19.44% <0%> (-0.28%) ⬇️
core/client/tracker/tracker.go 66.66% <0%> (ø) ⬆️
core/client/client.go 28.28% <0%> (-0.66%) ⬇️
impl/integration/env.go 0% <0%> (ø) ⬆️
core/integration/client_tests.go 0% <0%> (ø) ⬆️
core/client/verifier/verifier.go 56.57% <100%> (+0.57%) ⬆️

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@@ -53,6 +52,8 @@ type LogTracker interface {
VerifyLogRoot(state *pb.LogRootRequest, newRoot *pb.LogRoot) (*types.LogRootV1, error)
}

type LogTrackerFactory func(*tclient.LogVerifier) LogTracker

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@mhutchinson

mhutchinson Jul 19, 2019

Given the length of the conversation we had around this yesterday, I think a short description here would be worthwhile. It only needs to say that this allows different implementation strategies, including a no-op implementation, for a Tracker to be injected based on a verifier. It feels obvious now, but I'm not sure that would be true without the context.

core/client/gobindclient/client.go Outdated Show resolved Hide resolved
core/client/tracker/tracker.go Outdated Show resolved Hide resolved

@gdbelvin gdbelvin force-pushed the gdbelvin:factory branch from ba93b20 to cfa95b9 Jul 19, 2019

gdbelvin added some commits Jul 19, 2019

@gdbelvin gdbelvin merged commit 3c05089 into google:master Jul 19, 2019

4 of 5 checks passed

codecov/patch 10.71% of diff hit (target 30.26%)
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GolangCI No issues found!
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Travis CI - Pull Request Build Passed
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cla/google All necessary CLAs are signed
codecov/project 30.3% (+0.04%) compared to f3ee35a
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@gdbelvin gdbelvin deleted the gdbelvin:factory branch Jul 19, 2019

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