Support Sarif output (#4723)

Co-authored-by: Fernandez Ludovic <ldez@users.noreply.github.com>

.golangci.next.reference.yml

@@ -71,6 +71,7 @@ output:
   # - `junit-xml`
   # - `github-actions`
   # - `teamcity`
+  # - `sarif`
   # Output path can be either `stdout`, `stderr` or path to the file to write to.
   #
   # For the CLI flag (`--out-format`), multiple formats can be specified by separating them by comma.

jsonschema/golangci.next.jsonschema.json

@@ -432,7 +432,8 @@
                   "code-climate",
                   "junit-xml",
                   "github-actions",
-                  "teamcity"
+                  "teamcity",
+                  "sarif"
                 ]
               }
             },

pkg/config/output.go

@@ -19,6 +19,7 @@ const (
 	OutFormatJunitXML          = "junit-xml"
 	OutFormatGithubActions     = "github-actions"
 	OutFormatTeamCity          = "teamcity"
+	OutFormatSarif             = "sarif"
 )
 
 var AllOutputFormats = []string{
@@ -33,6 +34,7 @@ var AllOutputFormats = []string{
 	OutFormatJunitXML,
 	OutFormatGithubActions,
 	OutFormatTeamCity,
+	OutFormatSarif,
 }
 
 type Output struct {

pkg/printers/printer.go

@@ -135,6 +135,8 @@ func (c *Printer) createPrinter(format string, w io.Writer) (issuePrinter, error
 		p = NewGitHubAction(w)
 	case config.OutFormatTeamCity:
 		p = NewTeamCity(w)
+	case config.OutFormatSarif:
+		p = NewSarif(w)
 	default:
 		return nil, fmt.Errorf("unknown output format %q", format)
 	}

pkg/printers/sarif.go

@@ -0,0 +1,109 @@
+package printers
+
+import (
+	"encoding/json"
+	"io"
+
+	"github.com/golangci/golangci-lint/pkg/result"
+)
+
+const (
+	sarifVersion   = "2.1.0"
+	sarifSchemaURI = "https://schemastore.azurewebsites.net/schemas/json/sarif-2.1.0-rtm.6.json"
+)
+
+type SarifOutput struct {
+	Version string     `json:"version"`
+	Schema  string     `json:"$schema"`
+	Runs    []sarifRun `json:"runs"`
+}
+
+type sarifRun struct {
+	Tool    sarifTool     `json:"tool"`
+	Results []sarifResult `json:"results"`
+}
+
+type sarifTool struct {
+	Driver struct {
+		Name string `json:"name"`
+	} `json:"driver"`
+}
+
+type sarifResult struct {
+	RuleID    string          `json:"ruleId"`
+	Level     string          `json:"level"`
+	Message   sarifMessage    `json:"message"`
+	Locations []sarifLocation `json:"locations"`
+}
+
+type sarifMessage struct {
+	Text string `json:"text"`
+}
+
+type sarifLocation struct {
+	PhysicalLocation sarifPhysicalLocation `json:"physicalLocation"`
+}
+
+type sarifPhysicalLocation struct {
+	ArtifactLocation sarifArtifactLocation `json:"artifactLocation"`
+	Region           sarifRegion           `json:"region"`
+}
+
+type sarifArtifactLocation struct {
+	URI   string `json:"uri"`
+	Index int    `json:"index"`
+}
+
+type sarifRegion struct {
+	StartLine   int `json:"startLine"`
+	StartColumn int `json:"startColumn"`
+}
+
+type Sarif struct {
+	w io.Writer
+}
+
+func NewSarif(w io.Writer) *Sarif {
+	return &Sarif{w: w}
+}
+
+func (p Sarif) Print(issues []result.Issue) error {
+	run := sarifRun{}
+	run.Tool.Driver.Name = "golangci-lint"
+
+	for i := range issues {
+		issue := issues[i]
+
+		severity := issue.Severity
+		if severity == "" {
+			severity = "error"
+		}
+
+		sr := sarifResult{
+			RuleID:  issue.FromLinter,
+			Level:   severity,
+			Message: sarifMessage{Text: issue.Text},
+			Locations: []sarifLocation{
+				{
+					PhysicalLocation: sarifPhysicalLocation{
+						ArtifactLocation: sarifArtifactLocation{URI: issue.FilePath()},
+						Region: sarifRegion{
+							StartLine:   issue.Line(),
+							StartColumn: issue.Column(),
+						},
+					},
+				},
+			},
+		}
+
+		run.Results = append(run.Results, sr)
+	}
+
+	output := SarifOutput{
+		Version: sarifVersion,
+		Schema:  sarifSchemaURI,
+		Runs:    []sarifRun{run},
+	}
+
+	return json.NewEncoder(p.w).Encode(output)
+}

pkg/printers/sarif_test.go

@@ -0,0 +1,67 @@
+package printers
+
+import (
+	"bytes"
+	"go/token"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/golangci/golangci-lint/pkg/result"
+)
+
+func TestSarif_Print(t *testing.T) {
+	issues := []result.Issue{
+		{
+			FromLinter: "linter-a",
+			Severity:   "warning",
+			Text:       "some issue",
+			Pos: token.Position{
+				Filename: "path/to/filea.go",
+				Offset:   2,
+				Line:     10,
+				Column:   4,
+			},
+		},
+		{
+			FromLinter: "linter-b",
+			Severity:   "error",
+			Text:       "another issue",
+			SourceLines: []string{
+				"func foo() {",
+				"\tfmt.Println(\"bar\")",
+				"}",
+			},
+			Pos: token.Position{
+				Filename: "path/to/fileb.go",
+				Offset:   5,
+				Line:     300,
+				Column:   9,
+			},
+		},
+		{
+			FromLinter: "linter-a",
+			Severity:   "error",
+			Text:       "some issue 2",
+			Pos: token.Position{
+				Filename: "path/to/filec.go",
+				Offset:   3,
+				Line:     11,
+				Column:   5,
+			},
+		},
+	}
+
+	buf := new(bytes.Buffer)
+
+	printer := NewSarif(buf)
+
+	err := printer.Print(issues)
+	require.NoError(t, err)
+
+	expected := `{"version":"2.1.0","$schema":"https://schemastore.azurewebsites.net/schemas/json/sarif-2.1.0-rtm.6.json","runs":[{"tool":{"driver":{"name":"golangci-lint"}},"results":[{"ruleId":"linter-a","level":"warning","message":{"text":"some issue"},"locations":[{"physicalLocation":{"artifactLocation":{"uri":"path/to/filea.go","index":0},"region":{"startLine":10,"startColumn":4}}}]},{"ruleId":"linter-b","level":"error","message":{"text":"another issue"},"locations":[{"physicalLocation":{"artifactLocation":{"uri":"path/to/fileb.go","index":0},"region":{"startLine":300,"startColumn":9}}}]},{"ruleId":"linter-a","level":"error","message":{"text":"some issue 2"},"locations":[{"physicalLocation":{"artifactLocation":{"uri":"path/to/filec.go","index":0},"region":{"startLine":11,"startColumn":5}}}]}]}]}
+`
+
+	assert.Equal(t, expected, buf.String())
+}