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fix unnecesssary allocation in infile.go #1600

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merged 1 commit into from
Jun 16, 2024

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methane
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@methane methane commented Jun 14, 2024

Description

There is a code if data == nil to avoid allocation when sending empty packet in handleInFileRequest().
But it didn't work because previous allocation happend inner block as data := make(...).
VSCode warns that if data == nil is tautology.

Checklist

  • Code compiles correctly
  • Created tests which fail without the change (if possible)
  • All tests passing
  • Extended the README / documentation, if necessary
  • Added myself / the copyright holder to the AUTHORS file

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@methane methane requested a review from shogo82148 June 14, 2024 07:44
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Coverage Status

coverage: 82.378% (+0.01%) from 82.368%
when pulling 16415ec on methane:fix-infile
into 87443b9 on go-sql-driver:master.

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Actionable comments posted: 1

Outside diff range and nitpick comments (1)
infile.go (1)

Line range hint 103-103: Consider simplifying the conditional logic to enhance readability.

- if idx == 0 || (idx > 0 && name[idx-1] == '/')
+ if idx >= 0 && (idx == 0 || name[idx-1] == '/')
Tools
golangci-lint

96-96: Function 'handleInFileRequest' is too long (86 > 60) (funlen)

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 87443b9 and 16415ec.

Files selected for processing (1)
  • infile.go (2 hunks)
Additional context used
golangci-lint
infile.go

96-96: Function 'handleInFileRequest' is too long (86 > 60) (funlen)


103-103: if idx == 0 || (idx > 0 && name[idx-1] == '/') has complex nested blocks (complexity: 20) (nestif)

Additional comments not posted (2)
infile.go (2)

149-153: The changes correctly address the unnecessary allocation by moving the data array creation outside the loop and conditionally initializing it based on packetSize. Good job on optimizing this!

Also applies to: 160-160


Line range hint 160-160: Handling EOF as a non-error case is appropriate for file read operations.

Tools
golangci-lint

96-96: Function 'handleInFileRequest' is too long (86 > 60) (funlen)

@@ -95,7 +95,6 @@ const defaultPacketSize = 16 * 1024 // 16KB is small enough for disk readahead a

func (mc *okHandler) handleInFileRequest(name string) (err error) {
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The function is quite lengthy and complex. Consider refactoring into smaller, more focused functions to improve maintainability and testability.

Tools
golangci-lint

96-96: Function 'handleInFileRequest' is too long (86 > 60) (funlen)

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LGTM

@methane methane merged commit 2f69712 into go-sql-driver:master Jun 16, 2024
32 checks passed
@methane methane deleted the fix-infile branch June 16, 2024 01:18
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3 participants