update exhaustive to latest; use version in go.mod (#1449)

* update exhaustive to latest

* wip

* update dep

* update flag name

* use versioned dep

* add tests

* unused file

* no need config file

* add vars to test

* test comment

* remove default settings

Author: nishanths

.golangci.example.yml

@@ -102,6 +102,8 @@ linters-settings:
     # see https://github.com/kisielk/errcheck#excluding-functions for details
     exclude: /path/to/file.txt
   exhaustive:
+    # check switch statements in generated files also
+    check-generated: false
     # indicates that switch statements are to be considered exhaustive if a
     # 'default' case is present, even if all enum members aren't listed in the
     # switch
@@ -432,22 +434,22 @@ issues:
 
 severity:
   # Default value is empty string.
-  # Set the default severity for issues. If severity rules are defined and the issues 
-  # do not match or no severity is provided to the rule this will be the default 
-  # severity applied. Severities should match the supported severity names of the 
+  # Set the default severity for issues. If severity rules are defined and the issues
+  # do not match or no severity is provided to the rule this will be the default
+  # severity applied. Severities should match the supported severity names of the
   # selected out format.
   # - Code climate: https://docs.codeclimate.com/docs/issues#issue-severity
   # -   Checkstyle: https://checkstyle.sourceforge.io/property_types.html#severity
   # -       Github: https://help.github.com/en/actions/reference/workflow-commands-for-github-actions#setting-an-error-message
   default-severity: error
 
-  # The default value is false. 
+  # The default value is false.
   # If set to true severity-rules regular expressions become case sensitive.
   case-sensitive: false
 
   # Default value is empty list.
   # When a list of severity rules are provided, severity information will be added to lint
-  # issues. Severity rules have the same filtering capability as exclude rules except you 
+  # issues. Severity rules have the same filtering capability as exclude rules except you
   # are allowed to specify one matcher per severity rule.
   # Only affects out formats that support setting severity information.
   rules:

.golangci.yml

@@ -9,8 +9,6 @@ linters-settings:
       - github.com/sirupsen/logrus: "logging is allowed only by logutils.Log"
   dupl:
     threshold: 100
-  exhaustive:
-    default-signifies-exhaustive: false
   funlen:
     lines: 100
     statements: 50

go.mod

@@ -37,7 +37,7 @@ require (
 	github.com/mitchellh/go-ps v1.0.0
 	github.com/moricho/tparallel v0.2.1
 	github.com/nakabonne/nestif v0.3.0
-	github.com/nishanths/exhaustive v0.0.0-20200811152831-6cf413ae40e0
+	github.com/nishanths/exhaustive v0.1.0
 	github.com/pkg/errors v0.9.1
 	github.com/polyfloyd/go-errorlint v0.0.0-20201006195004-351e25ade6e3
 	github.com/ryancurrah/gomodguard v1.1.0
@@ -62,7 +62,7 @@ require (
 	github.com/ultraware/whitespace v0.0.4
 	github.com/uudashr/gocognit v1.0.1
 	github.com/valyala/quicktemplate v1.6.3
-	golang.org/x/tools v0.0.0-20201001104356-43ebab892c4c
+	golang.org/x/tools v0.0.0-20201011145850-ed2f50202694
 	gopkg.in/yaml.v2 v2.3.0
 	honnef.co/go/tools v0.0.1-2020.1.6
 	mvdan.cc/gofumpt v0.0.0-20200802201014-ab5a8192947d

go.sum

@@ -354,6 +354,7 @@ type NestifSettings struct {
 }
 
 type ExhaustiveSettings struct {
+	CheckGenerated             bool `mapstructure:"check-generated"`
 	DefaultSignifiesExhaustive bool `mapstructure:"default-signifies-exhaustive"`
 }
 
@@ -416,6 +417,7 @@ var defaultLintersSettings = LintersSettings{
 		MinComplexity: 5,
 	},
 	Exhaustive: ExhaustiveSettings{
+		CheckGenerated:             false,
 		DefaultSignifiesExhaustive: false,
 	},
 	Gofumpt: GofumptSettings{

pkg/config/config.go

@@ -15,6 +15,7 @@ func NewExhaustive(settings *config.ExhaustiveSettings) *goanalysis.Linter {
 	if settings != nil {
 		cfg = map[string]map[string]interface{}{
 			a.Name: {
+				exhaustive.CheckGeneratedFlag:             settings.CheckGenerated,
 				exhaustive.DefaultSignifiesExhaustiveFlag: settings.DefaultSignifiesExhaustive,
 			},
 		}

pkg/golinters/exhaustive.go

@@ -1,5 +1,5 @@
 //args: -Eexhaustive
-//config_path: testdata/configs/exhaustive.yml
+//config_path: testdata/configs/exhaustive_default.yml
 package testdata
 
 type Direction int