Added gofmt to format command

pkg/yqlib/all_at_once_evaluator.go

@@ -18,12 +18,12 @@ type Evaluator interface {
 }
 
 type allAtOnceEvaluator struct {
-	treeNavigator dataTreeNavigator
+	treeNavigator DataTreeNavigator
 	treeCreator   ExpressionParser
 }
 
 func NewAllAtOnceEvaluator() Evaluator {
-	return &allAtOnceEvaluator{treeNavigator: newDataTreeNavigator(), treeCreator: NewExpressionParser()}
+	return &allAtOnceEvaluator{treeNavigator: NewDataTreeNavigator(), treeCreator: NewExpressionParser()}
 }
 
 func (e *allAtOnceEvaluator) EvaluateNodes(expression string, nodes ...*yaml.Node) (*list.List, error) {

pkg/yqlib/data_tree_navigator.go

@@ -6,21 +6,21 @@ import (
 	logging "gopkg.in/op/go-logging.v1"
 )
 
-type dataTreeNavigator interface {
+type DataTreeNavigator interface {
 	// given the context and a expressionNode,
 	// this will process the against the given expressionNode and return
 	// a new context of matching candidates
 	GetMatchingNodes(context Context, expressionNode *ExpressionNode) (Context, error)
 }
 
-type dataTreeNavigatorImpl struct {
+type dataTreeNavigator struct {
 }
 
-func newDataTreeNavigator() dataTreeNavigator {
-	return &dataTreeNavigatorImpl{}
+func NewDataTreeNavigator() DataTreeNavigator {
+	return &dataTreeNavigator{}
 }
 
-func (d *dataTreeNavigatorImpl) GetMatchingNodes(context Context, expressionNode *ExpressionNode) (Context, error) {
+func (d *dataTreeNavigator) GetMatchingNodes(context Context, expressionNode *ExpressionNode) (Context, error) {
 	if expressionNode == nil {
 		log.Debugf("getMatchingNodes - nothing to do")
 		return context, nil

pkg/yqlib/doc/aa.md

@@ -71,7 +71,7 @@ dog
 Both sides have now been evaluated, so now the operator copies across the value from the RHS to the value on the LHS, and it returns the now updated context:
 
 ```yaml
-a: cat
+a: dog
 b: dog
 ```
 

pkg/yqlib/encoder.go

@@ -9,7 +9,7 @@ import (
 	yaml "gopkg.in/yaml.v3"
 )
 
-type encoder interface {
+type Encoder interface {
 	Encode(node *yaml.Node) error
 }
 
@@ -20,7 +20,7 @@ type yamlEncoder struct {
 	firstDoc    bool
 }
 
-func newYamlEncoder(destination io.Writer, indent int, colorise bool) encoder {
+func NewYamlEncoder(destination io.Writer, indent int, colorise bool) Encoder {
 	if indent < 0 {
 		indent = 0
 	}
@@ -74,7 +74,7 @@ func mapKeysToStrings(node *yaml.Node) {
 	}
 }
 
-func newJsonEncoder(destination io.Writer, indent int) encoder {
+func NewJsonEncoder(destination io.Writer, indent int) Encoder {
 	var encoder = json.NewEncoder(destination)
 	encoder.SetEscapeHTML(false) // do not escape html chars e.g. &, <, >
 

pkg/yqlib/operator_alternative_test.go

@@ -5,6 +5,12 @@ import (
 )
 
 var alternativeOperatorScenarios = []expressionScenario{
+	{
+		skipDoc:    true,
+		expression: `.b // .c`,
+		document:   `a: bridge`,
+		expected:   []string{},
+	},
 	{
 		skipDoc:    true,
 		expression: `(.b // "hello") as $x`,

pkg/yqlib/operator_booleans_test.go

@@ -12,6 +12,14 @@ var booleanOperatorScenarios = []expressionScenario{
 			"D0, P[], (!!bool)::true\n",
 		},
 	},
+	{
+		skipDoc:    true,
+		document:   "b: hi",
+		expression: `.a or .c`,
+		expected: []string{
+			"D0, P[], (!!bool)::false\n",
+		},
+	},
 	{
 		skipDoc:    true,
 		document:   "b: hi",

pkg/yqlib/operator_equals_test.go

@@ -5,6 +5,13 @@ import (
 )
 
 var equalsOperatorScenarios = []expressionScenario{
+	{
+		skipDoc:    true,
+		expression: ".a == .b",
+		expected: []string{
+			"D0, P[], (!!bool)::true\n",
+		},
+	},
 	{
 		skipDoc:    true,
 		document:   "cat",

pkg/yqlib/operator_traverse_path.go

@@ -308,6 +308,6 @@ func traverseMergeAnchor(newMatches *orderedmap.OrderedMap, originalCandidate *C
 
 func traverseArray(candidate *CandidateNode, operation *Operation, prefs traversePreferences) (*list.List, error) {
 	log.Debug("operation Value %v", operation.Value)
-	indices := []*yaml.Node{&yaml.Node{Value: operation.StringValue}}
+	indices := []*yaml.Node{{Value: operation.StringValue}}
 	return traverseArrayWithIndices(candidate, indices, prefs)
 }

pkg/yqlib/operators.go

@@ -31,7 +31,9 @@ func resultsForRhs(d *dataTreeNavigator, context Context, lhsCandidate *Candidat
 		if err != nil {
 			return err
 		}
-		results.PushBack(resultCandidate)
+		if resultCandidate != nil {
+			results.PushBack(resultCandidate)
+		}
 		return nil
 	}
 
@@ -42,7 +44,9 @@ func resultsForRhs(d *dataTreeNavigator, context Context, lhsCandidate *Candidat
 		if err != nil {
 			return err
 		}
-		results.PushBack(resultCandidate)
+		if resultCandidate != nil {
+			results.PushBack(resultCandidate)
+		}
 	}
 	return nil
 }

pkg/yqlib/operators_test.go

@@ -65,7 +65,7 @@ func testScenario(t *testing.T, s *expressionScenario) {
 		os.Setenv("myenv", s.environmentVariable)
 	}
 
-	context, err := newDataTreeNavigator().GetMatchingNodes(Context{MatchingNodes: inputs}, node)
+	context, err := NewDataTreeNavigator().GetMatchingNodes(Context{MatchingNodes: inputs}, node)
 
 	if err != nil {
 		t.Error(fmt.Errorf("%v: %v", err, s.expression))
@@ -251,7 +251,7 @@ func documentOutput(t *testing.T, w *bufio.Writer, s expressionScenario, formatt
 
 	}
 
-	context, err := newDataTreeNavigator().GetMatchingNodes(Context{MatchingNodes: inputs}, node)
+	context, err := NewDataTreeNavigator().GetMatchingNodes(Context{MatchingNodes: inputs}, node)
 	if err != nil {
 		t.Error(err, s.expression)
 	}

pkg/yqlib/printer.go

@@ -24,7 +24,7 @@ type resultsPrinter struct {
 	previousDocIndex   uint
 	previousFileIndex  int
 	printedMatches     bool
-	treeNavigator      dataTreeNavigator
+	treeNavigator      DataTreeNavigator
 }
 
 func NewPrinter(writer io.Writer, outputToJSON bool, unwrapScalar bool, colorsEnabled bool, indent int, printDocSeparators bool) Printer {
@@ -36,7 +36,7 @@ func NewPrinter(writer io.Writer, outputToJSON bool, unwrapScalar bool, colorsEn
 		indent:             indent,
 		printDocSeparators: !outputToJSON && printDocSeparators,
 		firstTimePrinting:  true,
-		treeNavigator:      newDataTreeNavigator(),
+		treeNavigator:      NewDataTreeNavigator(),
 	}
 }
 
@@ -48,14 +48,14 @@ func (p *resultsPrinter) printNode(node *yaml.Node, writer io.Writer) error {
 	p.printedMatches = p.printedMatches || (node.Tag != "!!null" &&
 		(node.Tag != "!!bool" || node.Value != "false"))
 
-	var encoder encoder
+	var encoder Encoder
 	if node.Kind == yaml.ScalarNode && p.unwrapScalar && !p.outputToJSON {
 		return p.writeString(writer, node.Value+"\n")
 	}
 	if p.outputToJSON {
-		encoder = newJsonEncoder(writer, p.indent)
+		encoder = NewJsonEncoder(writer, p.indent)
 	} else {
-		encoder = newYamlEncoder(writer, p.indent, p.colorsEnabled)
+		encoder = NewYamlEncoder(writer, p.indent, p.colorsEnabled)
 	}
 	return encoder.Encode(node)
 }

pkg/yqlib/stream_evaluator.go

@@ -18,13 +18,13 @@ type StreamEvaluator interface {
 }
 
 type streamEvaluator struct {
-	treeNavigator dataTreeNavigator
+	treeNavigator DataTreeNavigator
 	treeCreator   ExpressionParser
 	fileIndex     int
 }
 
 func NewStreamEvaluator() StreamEvaluator {
-	return &streamEvaluator{treeNavigator: newDataTreeNavigator(), treeCreator: NewExpressionParser()}
+	return &streamEvaluator{treeNavigator: NewDataTreeNavigator(), treeCreator: NewExpressionParser()}
 }
 
 func (s *streamEvaluator) EvaluateNew(expression string, printer Printer) error {

scripts/format.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 
 find . \( -path ./vendor \) -prune -o -name "*.go" -exec goimports -w {} \;
+gofmt -w -s .
 go mod tidy
 go mod vendor