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revive/formatter/sarif.go
2021-04-05 11:54:33 -07:00

108 lines
2.7 KiB
Go

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))
}