adds SARIF formater

README.md

@@ -83,6 +83,7 @@ Here's how `revive` is different from `golint`:
     - [Default](#default)
     - [Plain](#plain)
     - [Unix](#unix)
+    - [SARIF](#sarif)
   - [Extensibility](#extensibility)
     - [Custom Rule](#custom-rule)
       - [Example](#example)
@@ -408,6 +409,12 @@ The unix formatter produces the same output as the default formatter but surroun
 
 ![Unix formatter](/assets/formatter-unix.png)
 
+### SARIF
+The `sarif`  formatter produces outputs in SARIF, for _Static Analysis Results Interchange Format_, a standard JSON-based format for the output of static analysis tools defined and promoted by [OASIS](https://www.oasis-open.org/).
+
+Current supported version of the standard is [SARIF-v2.1.0](https://docs.oasis-open.org/sarif/sarif/v2.1.0/csprd01/sarif-v2.1.0-csprd01.html
+).
+
 ## Extensibility
 
 The tool can be extended with custom rules or formatters. This section contains additional information on how to implement such.

config/config.go

@@ -89,6 +89,7 @@ var allFormatters = []lint.Formatter{
 	&formatter.Unix{},
 	&formatter.Checkstyle{},
 	&formatter.Plain{},
+	&formatter.Sarif{},
 }
 
 func getFormatters() map[string]lint.Formatter {

formatter/sarif.go

@@ -0,0 +1,107 @@
+package formatter
+
+import (
+	"bytes"
+	"fmt"
+	"strings"
+
+	"github.com/chavacava/garif"
+	"github.com/mgechev/revive/lint"
+)
+
+// Sarif is an implementation of the Formatter interface
+// which formats revive failures into SARIF format.
+type Sarif struct {
+	Metadata lint.FormatterMetadata
+}
+
+// Name returns the name of the formatter
+func (f *Sarif) Name() string {
+	return "sarif"
+}
+
+const reviveSite = "https://revive.run"
+
+// Format formats the failures gotten from the lint.
+func (f *Sarif) Format(failures <-chan lint.Failure, cfg lint.Config) (string, error) {
+	sarifLog := newReviveRunLog(cfg)
+
+	for failure := range failures {
+		sarifLog.AddResult(failure)
+	}
+
+	buf := new(bytes.Buffer)
+	sarifLog.PrettyWrite(buf)
+
+	return buf.String(), nil
+}
+
+type reviveRunLog struct {
+	*garif.LogFile
+	run   *garif.Run
+	rules map[string]lint.RuleConfig
+}
+
+func newReviveRunLog(cfg lint.Config) *reviveRunLog {
+	run := garif.NewRun(garif.NewTool(garif.NewDriver("revive").WithInformationUri(reviveSite)))
+	log := garif.NewLogFile([]*garif.Run{run}, garif.Version210)
+
+	reviveLog := &reviveRunLog{
+		log,
+		run,
+		cfg.Rules,
+	}
+
+	reviveLog.addRules(cfg.Rules)
+
+	return reviveLog
+}
+
+func (l *reviveRunLog) addRules(cfg map[string]lint.RuleConfig) {
+	for name, ruleCfg := range cfg {
+		rule := garif.NewRule(name).WithHelpUri(reviveSite + "/r#" + name)
+		setRuleProperties(rule, ruleCfg)
+		driver := l.run.Tool.Driver
+
+		if driver.Rules == nil {
+			driver.Rules = []*garif.ReportingDescriptor{rule}
+			return
+		}
+
+		driver.Rules = append(driver.Rules, rule)
+	}
+}
+
+func (l *reviveRunLog) AddResult(failure lint.Failure) {
+	positiveOrZero := func(x int) int {
+		if x > 0 {
+			return x
+		}
+		return 0
+	}
+	position := failure.Position
+	filename := position.Start.Filename
+	line := positiveOrZero(position.Start.Line - 1)     // https://docs.oasis-open.org/sarif/sarif/v2.1.0/csprd01/sarif-v2.1.0-csprd01.html#def_line
+	column := positiveOrZero(position.Start.Column - 1) // https://docs.oasis-open.org/sarif/sarif/v2.1.0/csprd01/sarif-v2.1.0-csprd01.html#def_column
+
+	result := garif.NewResult(garif.NewMessageFromText(failure.Failure))
+	location := garif.NewLocation().WithURI(filename).WithLineColumn(line, column)
+	result.Locations = append(result.Locations, location)
+	result.RuleId = failure.RuleName
+	result.Level = l.rules[failure.RuleName].Severity
+
+	l.run.Results = append(l.run.Results, result)
+}
+
+func setRuleProperties(sarifRule *garif.ReportingDescriptor, lintRule lint.RuleConfig) {
+	arguments := make([]string, len(lintRule.Arguments))
+	for i, arg := range lintRule.Arguments {
+		arguments[i] = fmt.Sprintf("%+v", arg)
+	}
+
+	if len(arguments) > 0 {
+		sarifRule.WithProperties("arguments", strings.Join(arguments, ","))
+	}
+
+	sarifRule.WithProperties("severity", string(lintRule.Severity))
+}

go.mod

@@ -4,6 +4,7 @@ go 1.12
 
 require (
 	github.com/BurntSushi/toml v0.3.1
+	github.com/chavacava/garif v0.0.0-20210405163807-87a70f3d418b
 	github.com/fatih/color v1.10.0
 	github.com/fatih/structtag v1.2.0
 	github.com/mgechev/dots v0.0.0-20190921121421-c36f7dcfbb81

go.sum

@@ -1,34 +1,32 @@
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s=
-github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
+github.com/chavacava/garif v0.0.0-20210405163807-87a70f3d418b h1:StHNkfM8nXnNQnk5/0uYYhIqvvENd14hoHPnZsakTNo=
+github.com/chavacava/garif v0.0.0-20210405163807-87a70f3d418b/go.mod h1:Qjyv4H3//PWVzTeCezG2b9IRn6myJxJSr4TD/xo6ojU=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
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 github.com/fatih/color v1.10.0 h1:s36xzo75JdqLaaWoiEHk767eHiwo0598uUxyfiPkDsg=
 github.com/fatih/color v1.10.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM=
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@@ -37,20 +35,13 @@ golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
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-golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
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@@ -59,33 +50,13 @@ golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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