Misc deprecation

options.go

@@ -53,6 +53,9 @@ type LogEvent struct {
 	// Type is the type of log event.
 	Type LogEventType
 
+	// DeprecationType is set if Type is LogEventTypeDeprecated.
+	DeprecationType string
+
 	// Message on the form url:line:col message.
 	Message string
 }
@@ -133,6 +136,9 @@ type Args struct {
 	// Additional file paths to uses to resolve imports.
 	IncludePaths []string
 
+	// Deprecation IDs to silence, e.g. "import".
+	SilenceDeprecations []string
+
 	sassOutputStyle  embeddedsass.OutputStyle
 	sassSourceSyntax embeddedsass.Syntax
 
@@ -238,3 +244,10 @@ func ParseSourceSyntax(s string) SourceSyntax {
 		return SourceSyntaxSCSS
 	}
 }
+
+func stringPointerToString(s *string) string {
+	if s == nil {
+		return ""
+	}
+	return *s
+}

transpiler.go

@@ -216,6 +216,7 @@ func (t *Transpiler) Execute(args Args) (Result, error) {
 				},
 				SourceMap:               args.EnableSourceMap,
 				SourceMapIncludeSources: args.SourceMapIncludeSources,
+				SilenceDeprecation:      args.SilenceDeprecations,
 			},
 		}
 
@@ -413,13 +414,15 @@ func (t *Transpiler) input() {
 					}
 					u, _ = url.QueryUnescape(u)
 					logEvent = LogEvent{
-						Type:    LogEventType(e.Type),
-						Message: fmt.Sprintf("%s:%d:%d: %s", u, e.Span.Start.Line, e.Span.Start.Column, c.LogEvent.GetMessage()),
+						Type:            LogEventType(e.Type),
+						DeprecationType: stringPointerToString(e.DeprecationType),
+						Message:         fmt.Sprintf("%s:%d:%d: %s", u, e.Span.Start.Line, e.Span.Start.Column, c.LogEvent.GetMessage()),
 					}
 				} else {
 					logEvent = LogEvent{
-						Type:    LogEventType(e.Type),
-						Message: e.GetMessage(),
+						Type:            LogEventType(e.Type),
+						DeprecationType: stringPointerToString(e.DeprecationType),
+						Message:         e.GetMessage(),
 					}
 				}
 

transpiler_test.go

@@ -196,6 +196,42 @@ div { p { color: $moo; } }`
 	c.Assert(result.CSS, qt.Equals, "content{color:#ccc}div p{color:#f442d1}")
 }
 
+func TestSilenceDeprecations(t *testing.T) {
+	dir1 := t.TempDir()
+	colors := filepath.Join(dir1, "_colors.scss")
+
+	os.WriteFile(colors, []byte(`
+$moo:       #f442d1 !default;
+`), 0o644)
+
+	c := qt.New(t)
+	src := `
+@import "colors";
+div { p { color: $moo; } }`
+
+	var loggedImportDeprecation bool
+	transpiler, clean := newTestTranspiler(c, godartsass.Options{
+		LogEventHandler: func(e godartsass.LogEvent) {
+			if e.DeprecationType == "import" {
+				loggedImportDeprecation = true
+			}
+		},
+	})
+	defer clean()
+
+	result, err := transpiler.Execute(
+		godartsass.Args{
+			Source:              src,
+			OutputStyle:         godartsass.OutputStyleCompressed,
+			IncludePaths:        []string{dir1},
+			SilenceDeprecations: []string{"import"},
+		},
+	)
+	c.Assert(err, qt.IsNil)
+	c.Assert(loggedImportDeprecation, qt.IsFalse)
+	c.Assert(result.CSS, qt.Equals, "div p{color:#f442d1}")
+}
+
 func TestTranspilerParallel(t *testing.T) {
 	c := qt.New(t)
 	transpiler, clean := newTestTranspiler(c, godartsass.Options{})