Add a go language version override config option for golangci-lint.

lint/config.go

@@ -1,5 +1,9 @@
 package lint
 
+import (
+ goversion "github.com/hashicorp/go-version"
+)
+
 // Arguments is type used for the arguments of a rule.
 type Arguments = []interface{}
 
@@ -61,4 +65,7 @@ type Config struct {
  WarningCode int `toml:"warningCode"`
  Directives DirectivesConfig `toml:"directive"`
  Exclude []string `toml:"exclude"`
+ // If set, overrides the go language version specified in go.mod of
+ // packages being linted, and assumes this specific language version.
+ GoVersion *goversion.Version
 }

lint/linter.go

@@ -69,6 +69,10 @@ func (l *Linter) Lint(packages [][]string, ruleSet []Rule, config Config) (<-cha
  if len(files) == 0 {
  continue
  }
+ if config.GoVersion != nil {
+ perPkgVersions[n] = config.GoVersion
+ continue
+ }
 
  dir, err := filepath.Abs(filepath.Dir(files[0]))
  if err != nil {