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lll: ignore comments containing only URL #3986

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7 changes: 7 additions & 0 deletions pkg/golinters/lll.go
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Original file line numberDiff line numberDiff line change
Expand Up@@ -5,6 +5,7 @@ import (
"fmt"
"go/token"
"os"
"regexp"
"strings"
"sync"
"unicode/utf8"
Expand DownExpand Up@@ -89,6 +90,8 @@ func getLLLIssuesForFile(filename string, maxLineLen int, tabSpaces string) ([]r
lineNumber := 0
multiImportEnabled := false

urlComment := regexp.MustCompile(`\s*//\s*http(s)?://[^ ]+$`)
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@mattdowdellmattdowdellOct 29, 2023•
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Would it be possible to also exclude URLs used as reference links? e.g.

Here's a [link] and [another][1]! [link]: https://example.com[1]: https://example.com

I sometimes use these references to keep Go docs readable when browsing code (inserting long URLs makes following text hard), and given modern godoc uses markdown, this would likely be universally helpful.

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@nieomylniejanieomylniejaMar 22, 2025

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For that I specifically use:

exclude-rules: - linters: - lllsource: "^// \\[.*\\]: \\w+"


scanner := bufio.NewScanner(f)
for scanner.Scan(){
lineNumber++
Expand All@@ -100,6 +103,10 @@ func getLLLIssuesForFile(filename string, maxLineLen int, tabSpaces string) ([]r
continue
}

if urlComment.MatchString(line){
continue
}

if strings.HasPrefix(line, "import"){
multiImportEnabled = strings.HasSuffix(line, "(")
continue
Expand Down
20 changes: 20 additions & 0 deletions test/testdata/lll_comment_url.go
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,20 @@
//golangcitest:args -Elll
//golangcitest:config_path testdata/configs/lll.yml
package testdata

import (
"fmt"
_ "unsafe"
)

// https://github.com/golangci/golangci-lint/blob/master/pkg/result/processors/testdata/autogen_exclude_block_comment.go
funclllCommentURL1(){
// https://github.com/golangci/golangci-lint/blob/master/pkg/result/processors/testdata/autogen_exclude_block_comment.go
fmt.Println("lll")
}

// https://github.com/golangci/golangci-lint/blob/master/pkg/result/processors/testdata/autogen_exclude_block_comment.go foobar // want "line is 160 characters"
funclllCommentURL2(){
// https://github.com/golangci/golangci-lint/blob/master/pkg/result/processors/testdata/autogen_exclude_block_comment.go foobar // want "line is 164 characters"
fmt.Println("lll")
}