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Merged
merged 4 commits into from
Sep 6, 2023
Merged

lint: Enable errcheck, fix failures #1345

merged 4 commits into from
Sep 6, 2023

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abhinav
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@abhinav abhinav commented Sep 1, 2023 •
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This enables linting with errcheck on the repository.
Exclusions were added for functions that are known
to never fail, e.g. all Write methods on Zap's buffer.Buffer.

In attempting to enable exclusions for these functions,
I discovered and fixed a typo in the golangci.yml.

Complete list of issues fixed 
encoder_test.go:44:18: Error return value is not checked (errcheck)
encoder_test.go:55:18: Error return value is not checked (errcheck)
error.go:64:19: Error return value of `arr.AppendObject` is not checked (errcheck)
http_handler.go:83:13: Error return value of `enc.Encode` is not checked (errcheck)
http_handler.go:88:14: Error return value of `enc.Encode` is not checked (errcheck)
http_handler.go:92:13: Error return value of `enc.Encode` is not checked (errcheck)
http_handler.go:95:13: Error return value of `enc.Encode` is not checked (errcheck)
http_handler_test.go:170:24: Error return value of `res.Body.Close` is not checked (errcheck)
logger.go:377:24: Error return value of `log.errorOutput.Sync` is not checked (errcheck)
sink.go:69:17: Error return value of `sr.RegisterSink` is not checked (errcheck)
stacktrace_ext_test.go:178:13: Error return value of `os.MkdirAll` is not checked (errcheck)
writer.go:65:11: Error return value of `c.Close` is not checked (errcheck)
writer_test.go:94:11: Error return value of `os.Remove` is not checked (errcheck)
writer_test.go:258:9: Error return value of `w.Write` is not checked (errcheck)
zapcore/buffered_write_syncer_bench_test.go:43:15: Error return value of `w.Stop` is not checked (errcheck)
zapcore/buffered_write_syncer_bench_test.go:47:12: Error return value of `w.Write` is not checked (errcheck)
zapcore/buffered_write_syncer_test.go:104:11: Error return value of `ws.Write` is not checked (errcheck)
zapcore/core.go:107:9: Error return value of `c.Sync` is not checked (errcheck)
zapcore/core_test.go:151:13: Error return value of `core.Write` is not checked (errcheck)
zapcore/encoder_test.go:288:17: Error return value of `enc.AddArray` is not checked (errcheck)
zapcore/encoder_test.go:316:17: Error return value of `enc.AddArray` is not checked (errcheck)
zapcore/encoder_test.go:723:14: Error return value of `mem.AddArray` is not checked (errcheck)
zapcore/entry.go:245:23: Error return value of `ce.ErrorOutput.Sync` is not checked (errcheck)
zapcore/entry.go:257:22: Error return value of `ce.ErrorOutput.Sync` is not checked (errcheck)
zapcore/error.go:101:19: Error return value of `arr.AppendObject` is not checked (errcheck)
zapcore/json_encoder_bench_test.go:34:16: Error return value of `enc.AddObject` is not checked (errcheck)
zapcore/json_encoder_bench_test.go:98:16: Error return value of `json.Marshal` is not checked (errcheck)
zapcore/json_encoder_impl_test.go:252:16: Error return value of `e.AddObject` is not checked (errcheck)
zapcore/json_encoder_impl_test.go:260:16: Error return value of `e.AddObject` is not checked (errcheck)
zapcore/json_encoder_impl_test.go:268:16: Error return value of `e.AddObject` is not checked (errcheck)
zapcore/json_encoder_impl_test.go:292:13: Error return value of `e.AddArray` is not checked (errcheck)
zapcore/json_encoder_impl_test.go:423:21: Error return value of `arr.AppendObject` is not checked (errcheck)
zapcore/json_encoder_impl_test.go:431:21: Error return value of `arr.AppendObject` is not checked (errcheck)
zapcore/json_encoder_impl_test.go:533:20: Error return value of `arr.AppendObject` is not checked (errcheck)
zapcore/level_test.go:162:16: Error return value of `l.MarshalText` is not checked (errcheck)
zapcore/memory_encoder_test.go:221:16: Error return value of `e.AddObject` is not checked (errcheck)
zapcore/memory_encoder_test.go:235:16: Error return value of `e.AddObject` is not checked (errcheck)
zapcore/memory_encoder_test.go:288:54: Error return value of `e.AppendReflected` is not checked (errcheck)
zapcore/memory_encoder_test.go:294:18: Error return value of `e.AppendArray` is not checked (errcheck)
zapcore/memory_encoder_test.go:305:18: Error return value of `e.AppendArray` is not checked (errcheck)
zapcore/memory_encoder_test.go:306:24: Error return value of `inner.AppendObject` is not checked (errcheck)
zapcore/memory_encoder_test.go:321:18: Error return value of `e.AppendArray` is not checked (errcheck)
zapcore/memory_encoder_test.go:322:24: Error return value of `inner.AppendObject` is not checked (errcheck)
zapcore/tee_test.go:123:13: Error return value of `tee.Write` is not checked (errcheck)
zapcore/write_syncer_bench_test.go:40:12: Error return value of `w.Write` is not checked (errcheck)
zapcore/write_syncer_bench_test.go:54:12: Error return value of `w.Write` is not checked (errcheck)
zapcore/write_syncer_bench_test.go:67:15: Error return value of `w.Stop` is not checked (errcheck)
zapcore/write_syncer_bench_test.go:71:12: Error return value of `w.Write` is not checked (errcheck)
zapcore/write_syncer_bench_test.go:86:12: Error return value of `w.Write` is not checked (errcheck)
zapcore/write_syncer_test.go:73:9: Error return value of `ws.Sync` is not checked (errcheck)
zaptest/observer/observer_test.go:176:15: Error return value of `logger.Write` is not checked (errcheck)

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codecov bot commented Sep 1, 2023 •
edited
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Codecov Report

Merging #1345 (b86843b) into master (b900128) will increase coverage by 0.44%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1345      +/-   ##
==========================================
+ Coverage   97.58%   98.03%   +0.44%     
==========================================
  Files          52       52              
  Lines        3392     3403      +11     
==========================================
+ Hits         3310     3336      +26     
+ Misses         71       58      -13     
+ Partials       11        9       -2
Files Changed Coverage Δ
error.go 100.00% <100.00%> (ø)
http_handler.go 100.00% <100.00%> (ø)
logger.go 96.55% <100.00%> (ø)
sink.go 100.00% <100.00%> (ø)
writer.go 100.00% <100.00%> (ø)
zapcore/core.go 93.61% <100.00%> (ø)
zapcore/entry.go 98.33% <100.00%> (+8.33%) ⬆️
zapcore/error.go 86.27% <100.00%> (+0.85%) ⬆️

... and 1 file with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

@abhinav
lint: Enable errcheck, fix failures
312369b 
This enables linting with errcheck on the repository.
Exclusions were added for functions that are known
to never fail, e.g. all Write methods on Zap's buffer.Buffer.

In attempting to enable exclusions for these functions,
I discovered and fixed a typo in the golangci.yml.
@abhinav
test(AtomicLevel): Broken ResponseWriter
cb09f36
@abhinav
test(CheckedEntry): Reuse detection
b86843b 
Add a test for CheckedEntry re-use detection
that logs a message to ErrorOutput
when a CheckedEntry is accidentally reused.
@abhinav abhinav enabled auto-merge (squash) September 2, 2023 20:59
@abhinav abhinav merged commit 2b35963 into uber-go:master Sep 6, 2023
@abhinav abhinav deleted the errcheck branch September 6, 2023 00:38
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@sywhang sywhang sywhang approved these changes

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@abhinav @sywhang