Fix #384: support ignore-words option for misspell

Author: jirfag

.golangci.example.yml

@@ -115,6 +115,8 @@ linters-settings:
     # Default is to use a neutral variety of English.
     # Setting locale to US will correct the British spelling of 'colour' to 'color'.
     locale: US
+    ignore-words:
+      - someword
   lll:
     # max line length, lines longer will be reported. Default is 120.
     # '\t' is counted as 1 character by default, and can be changed with the tab-width option

README.md

@@ -645,6 +645,8 @@ linters-settings:
     # Default is to use a neutral variety of English.
     # Setting locale to US will correct the British spelling of 'colour' to 'color'.
     locale: US
+    ignore-words:
+      - someword
   lll:
     # max line length, lines longer will be reported. Default is 120.
     # '\t' is counted as 1 character by default, and can be changed with the tab-width option

pkg/config/config.go

@@ -158,7 +158,8 @@ type LintersSettings struct {
 		IncludeGoRoot bool `mapstructure:"include-go-root"`
 	}
 	Misspell struct {
-		Locale string
+		Locale      string
+		IgnoreWords []string `mapstructure:"ignore-words"`
 	}
 	Unused struct {
 		CheckExported bool `mapstructure:"check-exported"`

pkg/golinters/misspell.go

@@ -29,7 +29,8 @@ func (lint Misspell) Run(ctx context.Context, lintCtx *linter.Context) ([]result
 	}
 
 	// Figure out regional variations
-	locale := lintCtx.Settings().Misspell.Locale
+	settings := lintCtx.Settings().Misspell
+	locale := settings.Locale
 	switch strings.ToUpper(locale) {
 	case "":
 		// nothing
@@ -41,6 +42,10 @@ func (lint Misspell) Run(ctx context.Context, lintCtx *linter.Context) ([]result
 		return nil, fmt.Errorf("unknown locale: %q", locale)
 	}
 
+	if len(settings.IgnoreWords) != 0 {
+		r.RemoveRule(settings.IgnoreWords)
+	}
+
 	r.Compile()
 
 	var res []result.Issue

test/testdata/configs/misspell.yml

@@ -0,0 +1,4 @@
+linters-settings:
+  misspell:
+    ignore-words:
+      - langauge

test/testdata/misspell.go

@@ -1,6 +1,9 @@
 //args: -Emisspell
+//config_path: testdata/configs/misspell.yml
 package testdata
 
 func Misspell() {
 	// comment with incorrect spelling: occured // ERROR "`occured` is a misspelling of `occurred`"
 }
+
+// the word langauge should be ignored here: it's set in config