Fixed trailing empty docs

Fixed writing to null document
2025-01-18 04:53:17 -08:00 · 2020-02-21 11:37:59 +11:00 · 2020-02-21 11:34:26 +11:00 · 2020-02-21 11:02:10 +11:00 · 2020-02-21 10:29:37 +11:00 · 2020-02-18 20:18:49 +11:00
22 changed files with 656 additions and 227 deletions
--- a/README.md
+++ b/README.md
@@ -44,7 +44,8 @@ rm /etc/myfile.tmp
 ```

 ### On Ubuntu 16.04 or higher from Debian package:
-```
+```sh
+sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys CC86BB64
 sudo add-apt-repository ppa:rmescandon/yq
 sudo apt update
 sudo apt install yq -y
@@ -82,7 +83,7 @@ yq() {
 - [List matching paths of a given path expression](https://mikefarah.gitbook.io/yq/commands/read#path-only)
 - Update a yaml file given a [path expression](https://mikefarah.gitbook.io/yq/commands/write-update#basic) or [script file](https://mikefarah.gitbook.io/yq/commands/write-update#basic)
 - Update creates any missing entries in the path on the fly
- Deeply compare yaml files
+- Deeply [compare](https://mikefarah.gitbook.io/yq/commands/compare) yaml files
 - Keeps yaml formatting and comments when updating
 - [Validate a yaml file](https://mikefarah.gitbook.io/yq/commands/validate)
 - Create a yaml file given a [deep path and value](https://mikefarah.gitbook.io/yq/commands/create#creating-a-simple-yaml-file) or a [script file](https://mikefarah.gitbook.io/yq/commands/create#creating-using-a-create-script)
@@ -114,8 +115,9 @@ Available Commands:

 Flags:
  -h, --help          help for yq
+  -I, --indent int    sets indent level for output (default 2)
  -P, --prettyPrint   pretty print
-  -j, --tojson        output as json
+  -j, --tojson        output as json. By default it prints a json document in one line, use the prettyPrint flag to print a formatted doc.
  -v, --verbose       verbose mode
  -V, --version       Print version information and quit

@@ -124,8 +126,6 @@ Use "yq [command] --help" for more information about a command.

 ## Contribute

-**Note: v3 is currently in progress - for the moment I won't be accepting new feature PRs until v3 is ready :)**
-
 1. `scripts/devtools.sh`
 2. `make [local] vendor`
 3. add unit tests
--- a/cmd/commands_test.go
+++ b/cmd/commands_test.go
@@ -91,7 +91,7 @@ func TestReadCmd(t *testing.T) {
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "2", result.Output)
+	test.AssertResult(t, "2\n", result.Output)
 }

 func TestCompareCmd(t *testing.T) {
@@ -153,16 +153,16 @@ func TestValidateCmd(t *testing.T) {

 func TestReadWithAdvancedFilterCmd(t *testing.T) {
 	cmd := getRootCommand()
-	result := test.RunCmd(cmd, "read -v ../examples/sample.yaml b.e(name==sam).value")
+	result := test.RunCmd(cmd, "read ../examples/sample.yaml b.e(name==sam).value")
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "4", result.Output)
+	test.AssertResult(t, "4\n", result.Output)
 }

 func TestReadWithAdvancedFilterMapCmd(t *testing.T) {
 	cmd := getRootCommand()
-	result := test.RunCmd(cmd, "read -v ../examples/sample.yaml b.e[name==fr*]")
+	result := test.RunCmd(cmd, "read ../examples/sample.yaml b.e[name==fr*]")
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
@@ -183,11 +183,11 @@ func TestReadWithKeyAndValueCmd(t *testing.T) {

 func TestReadArrayCmd(t *testing.T) {
 	cmd := getRootCommand()
-	result := test.RunCmd(cmd, "read -p pv ../examples/sample.yaml b.e.1.name")
+	result := test.RunCmd(cmd, "read -p pv ../examples/sample.yaml b.e[1].name")
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "b.e.1.name: sam\n", result.Output)
+	test.AssertResult(t, "b.e.[1].name: sam\n", result.Output)
 }

 func TestReadDeepSplatCmd(t *testing.T) {
@@ -226,7 +226,7 @@ func TestReadWithKeyCmd(t *testing.T) {
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "b.c", result.Output)
+	test.AssertResult(t, "b.c\n", result.Output)
 }

 func TestReadAnchorsCmd(t *testing.T) {
@@ -235,7 +235,7 @@ func TestReadAnchorsCmd(t *testing.T) {
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "1", result.Output)
+	test.AssertResult(t, "1\n", result.Output)
 }

 func TestReadAnchorsWithKeyAndValueCmd(t *testing.T) {
@@ -279,7 +279,7 @@ func TestReadMergeAnchorsOriginalCmd(t *testing.T) {
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "original", result.Output)
+	test.AssertResult(t, "original\n", result.Output)
 }

 func TestReadMergeAnchorsExplodeJsonCmd(t *testing.T) {
@@ -318,7 +318,52 @@ pointer: *value-pointer`
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	expectedOutput := `the value`
+	expectedOutput := "the value\n"
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestReadMergeAnchorsExplodeSimpleArrayCmd(t *testing.T) {
+	content := `- things`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -X %s", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `- things
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestReadNumberKeyJsonCmd(t *testing.T) {
+	content := `data: {"40433437326": 10.833332}`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -j %s", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `{"data":{"40433437326":10.833332}}
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestReadMergeAnchorsExplodeSimpleArrayJsonCmd(t *testing.T) {
+	content := `- things`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -j %s", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `["things"]
+`
 	test.AssertResult(t, expectedOutput, result.Output)
 }

@@ -333,7 +378,7 @@ pointer: *value-pointer`
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	expectedOutput := `the value`
+	expectedOutput := "the value\n"
 	test.AssertResult(t, expectedOutput, result.Output)
 }

@@ -388,7 +433,7 @@ func TestReadMergeAnchorsOverrideCmd(t *testing.T) {
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "ice", result.Output)
+	test.AssertResult(t, "ice\n", result.Output)
 }

 func TestReadMergeAnchorsPrefixMatchCmd(t *testing.T) {
@@ -410,7 +455,7 @@ func TestReadMergeAnchorsListOriginalCmd(t *testing.T) {
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "original", result.Output)
+	test.AssertResult(t, "original\n", result.Output)
 }

 func TestReadMergeAnchorsListOverrideInListCmd(t *testing.T) {
@@ -419,7 +464,7 @@ func TestReadMergeAnchorsListOverrideInListCmd(t *testing.T) {
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "coconut", result.Output)
+	test.AssertResult(t, "coconut\n", result.Output)
 }

 func TestReadMergeAnchorsListOverrideCmd(t *testing.T) {
@@ -428,7 +473,7 @@ func TestReadMergeAnchorsListOverrideCmd(t *testing.T) {
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "newbar", result.Output)
+	test.AssertResult(t, "newbar\n", result.Output)
 }

 func TestReadInvalidDocumentIndexCmd(t *testing.T) {
@@ -470,7 +515,7 @@ func TestReadMultiCmd(t *testing.T) {
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "here", result.Output)
+	test.AssertResult(t, "here\n", result.Output)
 }

 func TestReadMultiWithKeyAndValueCmd(t *testing.T) {
@@ -491,7 +536,8 @@ func TestReadMultiAllCmd(t *testing.T) {
 	test.AssertResult(t,
 		`first document
 second document
-third document`, result.Output)
+third document
+`, result.Output)
 }

 func TestReadMultiAllWithKeyAndValueCmd(t *testing.T) {
@@ -513,7 +559,7 @@ func TestReadCmd_ArrayYaml(t *testing.T) {
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
-	test.AssertResult(t, "false", result.Output)
+	test.AssertResult(t, "false\n", result.Output)
 }

 func TestReadEmptyContentCmd(t *testing.T) {
@@ -530,6 +576,28 @@ func TestReadEmptyContentCmd(t *testing.T) {
 	test.AssertResult(t, expectedOutput, result.Output)
 }

+func TestReadEmptyNodesPrintPathCmd(t *testing.T) {
+	content := `map: 
+  that: {}
+array: 
+  great: []
+null:
+  indeed: ~`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read %s -ppv **", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `map.that: {}
+array.great: []
+null.indeed: ~
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
 func TestReadEmptyContentWithDefaultValueCmd(t *testing.T) {
 	content := ``
 	filename := test.WriteTempYamlFile(content)
@@ -673,7 +741,8 @@ func TestReadCmd_ArrayYaml_SplatWithKeyCmd(t *testing.T) {
 		t.Error(result.Error)
 	}
 	expectedOutput := `[0]
-[1]`
+[1]
+`
 	test.AssertResult(t, expectedOutput, result.Output)
 }

@@ -684,7 +753,8 @@ func TestReadCmd_ArrayYaml_SplatKey(t *testing.T) {
 		t.Error(result.Error)
 	}
 	expectedOutput := `false
-true`
+true
+`
 	test.AssertResult(t, expectedOutput, result.Output)
 }

@@ -765,15 +835,6 @@ func TestReadCmd_ErrorBadPath(t *testing.T) {
 	test.AssertResult(t, expectedOutput, result.Output)
 }

-func TestReadCmd_Verbose(t *testing.T) {
-	cmd := getRootCommand()
-	result := test.RunCmd(cmd, "read -v ../examples/sample.yaml b.c")
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	test.AssertResult(t, "2", result.Output)
-}
-
 func TestReadToJsonCmd(t *testing.T) {
 	cmd := getRootCommand()
 	result := test.RunCmd(cmd, "read -j ../examples/sample.yaml b")
@@ -892,7 +953,8 @@ b:
 	}

 	expectedOutput := `more things
-more things also`
+more things also
+`
 	test.AssertResult(t, expectedOutput, result.Output)
 }

@@ -947,7 +1009,8 @@ b:
 	}

 	expectedOutput := `b.there.c
-b.there2.c`
+b.there2.c
+`
 	test.AssertResult(t, expectedOutput, result.Output)
 }

@@ -1111,25 +1174,6 @@ func TestPrefixCmd_ErrorUnreadableFile(t *testing.T) {
 	test.AssertResult(t, expectedOutput, result.Error.Error())
 }

-func TestPrefixCmd_Verbose(t *testing.T) {
-	content := `b:
-  c: 3
-`
-	filename := test.WriteTempYamlFile(content)
-	defer test.RemoveTempYamlFile(filename)
-
-	cmd := getRootCommand()
-	result := test.RunCmd(cmd, fmt.Sprintf("prefix %s x", filename))
-	if result.Error != nil {
-		t.Error(result.Error)
-	}
-	expectedOutput := `x:
-  b:
-    c: 3
-`
-	test.AssertResult(t, expectedOutput, result.Output)
-}
-
 func TestPrefixCmd_Inplace(t *testing.T) {
 	content := `b:
  c: 3
@@ -1201,6 +1245,79 @@ func TestWriteCmd(t *testing.T) {
 	test.AssertResult(t, expectedOutput, result.Output)
 }

+func TestWriteEmptyMultiDocCmd(t *testing.T) {
+	content := `# this is empty
+---
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s c 7", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `c: 7
+
+# this is empty
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteSurroundingEmptyMultiDocCmd(t *testing.T) {
+	content := `---
+# empty
+---
+cat: frog
+---
+
+# empty
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s -d1 c 7", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `
+
+# empty
+---
+cat: frog
+c: 7
+---
+
+
+# empty
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteFromFileCmd(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	source := `kittens: are cute # sure are!`
+	fromFilename := test.WriteTempYamlFile(source)
+	defer test.RemoveTempYamlFile(fromFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.c -f %s", filename, fromFilename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c:
+    kittens: are cute # sure are!
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
 func TestWriteEmptyCmd(t *testing.T) {
 	content := ``
 	filename := test.WriteTempYamlFile(content)
@@ -1217,6 +1334,26 @@ func TestWriteEmptyCmd(t *testing.T) {
 	test.AssertResult(t, expectedOutput, result.Output)
 }

+func TestWriteAutoCreateCmd(t *testing.T) {
+	content := `applications:
+  - name: app
+    env:`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s applications[0].env.hello world", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `applications:
+- name: app
+  env:
+    hello: world
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
 func TestWriteCmdScript(t *testing.T) {
 	content := `b:
  c: 3
@@ -1519,7 +1656,7 @@ func TestWriteCmd_SplatMapEmpty(t *testing.T) {
 		t.Error(result.Error)
 	}
 	expectedOutput := `b:
-  c: thing
+  c: {}
  d: another thing
 `
 	test.AssertResult(t, expectedOutput, result.Output)
@@ -1812,6 +1949,33 @@ c:
 	test.AssertResult(t, expectedOutput, result.Output)
 }

+func TestMergeAppendArraysCmd(t *testing.T) {
+	content := `people:
+  - name: Barry
+    age: 21`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	mergeContent := `people:
+  - name: Roger
+    age: 44`
+	mergeFilename := test.WriteTempYamlFile(mergeContent)
+	defer test.RemoveTempYamlFile(mergeFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("merge --append -d* %s %s", filename, mergeFilename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `people:
+- name: Barry
+  age: 21
+- name: Roger
+  age: 44
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
 func TestMergeOverwriteAndAppendCmd(t *testing.T) {
 	cmd := getRootCommand()
 	result := test.RunCmd(cmd, "merge --autocreate=false --append --overwrite ../examples/data1.yaml ../examples/data2.yaml")
@@ -1890,6 +2054,27 @@ apples: red
 	test.AssertResult(t, expectedOutput, result.Output)
 }

+func TestMergeSpecialCharacterKeysCmd(t *testing.T) {
+	content := ``
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	mergeContent := `key[bracket]: value
+key.bracket: value
+key"value": value
+key'value': value
+`
+	mergeFilename := test.WriteTempYamlFile(mergeContent)
+	defer test.RemoveTempYamlFile(mergeFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("merge %s %s", filename, mergeFilename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, mergeContent, result.Output)
+}
+
 func TestMergeYamlMultiAllOverwriteCmd(t *testing.T) {
 	content := `b:
  c: 3
@@ -1920,6 +2105,25 @@ apples: red
 	test.AssertResult(t, expectedOutput, result.Output)
 }

+func TestMergeYamlNullMapCmd(t *testing.T) {
+	content := `b:`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	mergeContent := `b:
+  thing: a frog
+`
+	mergeFilename := test.WriteTempYamlFile(mergeContent)
+	defer test.RemoveTempYamlFile(mergeFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("merge %s %s", filename, mergeFilename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, mergeContent, result.Output)
+}
+
 func TestMergeCmd_Error(t *testing.T) {
 	cmd := getRootCommand()
 	result := test.RunCmd(cmd, "merge")
--- a/cmd/constant.go
+++ b/cmd/constant.go
@@ -9,6 +9,7 @@ var customTag = ""
 var printMode = "v"
 var writeInplace = false
 var writeScript = ""
+var sourceYamlFile = ""
 var outputToJSON = false
 var prettyPrint = false
 var explodeAnchors = false
--- a/cmd/merge.go
+++ b/cmd/merge.go
@@ -4,6 +4,7 @@ import (
 	"github.com/mikefarah/yq/v3/pkg/yqlib"
 	errors "github.com/pkg/errors"
 	"github.com/spf13/cobra"
+	yaml "gopkg.in/yaml.v3"
 )

 func createMergeCmd() *cobra.Command {
@@ -36,6 +37,16 @@ If append flag is set then existing arrays will be merged with the arrays from e
 	return cmdMerge
 }

+/*
+* We don't deeply traverse arrays when appending a merge, instead we want to
+* append the entire array element.
+ */
+func createReadFunctionForMerge() func(*yaml.Node) ([]*yqlib.NodeContext, error) {
+	return func(dataBucket *yaml.Node) ([]*yqlib.NodeContext, error) {
+		return lib.Get(dataBucket, "**", !appendFlag)
+	}
+}
+
 func mergeProperties(cmd *cobra.Command, args []string) error {
 	var updateCommands []yqlib.UpdateCommand = make([]yqlib.UpdateCommand, 0)

@@ -48,7 +59,7 @@ func mergeProperties(cmd *cobra.Command, args []string) error {
 		var filesToMerge = args[1:]

 		for _, fileToMerge := range filesToMerge {
-			matchingNodes, errorProcessingFile := readYamlFile(fileToMerge, "**", false, 0)
+			matchingNodes, errorProcessingFile := doReadYamlFile(fileToMerge, createReadFunctionForMerge(), false, 0)
 			if errorProcessingFile != nil {
 				return errorProcessingFile
 			}
--- a/cmd/utils.go
+++ b/cmd/utils.go
@@ -13,7 +13,19 @@ import (
 	yaml "gopkg.in/yaml.v3"
 )

+type readDataFn func(dataBucket *yaml.Node) ([]*yqlib.NodeContext, error)
+
+func createReadFunction(path string) func(*yaml.Node) ([]*yqlib.NodeContext, error) {
+	return func(dataBucket *yaml.Node) ([]*yqlib.NodeContext, error) {
+		return lib.Get(dataBucket, path, true)
+	}
+}
+
 func readYamlFile(filename string, path string, updateAll bool, docIndexInt int) ([]*yqlib.NodeContext, error) {
+	return doReadYamlFile(filename, createReadFunction(path), updateAll, docIndexInt)
+}
+
+func doReadYamlFile(filename string, readFn readDataFn, updateAll bool, docIndexInt int) ([]*yqlib.NodeContext, error) {
 	var matchingNodes []*yqlib.NodeContext

 	var currentIndex = 0
@@ -29,7 +41,7 @@ func readYamlFile(filename string, path string, updateAll bool, docIndexInt int)
 			}

 			var errorParsing error
-			matchingNodes, errorParsing = appendDocument(matchingNodes, dataBucket, path, updateAll, docIndexInt, currentIndex)
+			matchingNodes, errorParsing = appendDocument(matchingNodes, dataBucket, readFn, updateAll, docIndexInt, currentIndex)
 			if errorParsing != nil {
 				return errorParsing
 			}
@@ -51,14 +63,14 @@ func handleEOF(updateAll bool, docIndexInt int, currentIndex int) error {
 	return nil
 }

-func appendDocument(originalMatchingNodes []*yqlib.NodeContext, dataBucket yaml.Node, path string, updateAll bool, docIndexInt int, currentIndex int) ([]*yqlib.NodeContext, error) {
+func appendDocument(originalMatchingNodes []*yqlib.NodeContext, dataBucket yaml.Node, readFn readDataFn, updateAll bool, docIndexInt int, currentIndex int) ([]*yqlib.NodeContext, error) {
 	log.Debugf("processing document %v - requested index %v", currentIndex, docIndexInt)
 	yqlib.DebugNode(&dataBucket)
 	if !updateAll && currentIndex != docIndexInt {
 		return originalMatchingNodes, nil
 	}
-	log.Debugf("reading %v in document %v", path, currentIndex)
-	matchingNodes, errorParsing := lib.Get(&dataBucket, path)
+	log.Debugf("reading in document %v", currentIndex)
+	matchingNodes, errorParsing := readFn(&dataBucket)
 	if errorParsing != nil {
 		return nil, errors.Wrapf(errorParsing, "Error reading path in document index %v", currentIndex)
 	}
@@ -67,7 +79,7 @@ func appendDocument(originalMatchingNodes []*yqlib.NodeContext, dataBucket yaml.

 func printValue(node *yaml.Node, writer io.Writer) error {
 	if node.Kind == yaml.ScalarNode {
-		_, errorWriting := writer.Write([]byte(node.Value))
+		_, errorWriting := writer.Write([]byte(node.Value + "\n"))
 		return errorWriting
 	}
 	return printNode(node, writer)
@@ -103,10 +115,10 @@ func writeString(writer io.Writer, txt string) error {
 }

 func explode(matchingNodes []*yqlib.NodeContext) error {
-
+	log.Debug("exploding nodes")
 	for _, nodeContext := range matchingNodes {
-		var targetNode = yaml.Node{Kind: yaml.MappingNode}
-		explodedNodes, errorRetrieving := lib.Get(nodeContext.Node, "**")
+		var targetNode = yaml.Node{Kind: nodeContext.Node.Kind}
+		explodedNodes, errorRetrieving := lib.Get(nodeContext.Node, "**", true)
 		if errorRetrieving != nil {
 			return errorRetrieving
 		}
@@ -120,6 +132,7 @@ func explode(matchingNodes []*yqlib.NodeContext) error {
 		}
 		nodeContext.Node = &targetNode
 	}
+	log.Debug("done exploding nodes")
 	return nil
 }

@@ -147,19 +160,13 @@ func printResults(matchingNodes []*yqlib.NodeContext, writer io.Writer) error {
 		return nil
 	}
 	var errorWriting error
-	for index, mappedDoc := range matchingNodes {
+	for _, mappedDoc := range matchingNodes {
 		switch printMode {
 		case "p":
-			errorWriting = writeString(bufferedWriter, lib.PathStackToString(mappedDoc.PathStack))
+			errorWriting = writeString(bufferedWriter, lib.PathStackToString(mappedDoc.PathStack)+"\n")
 			if errorWriting != nil {
 				return errorWriting
 			}
-			if index < len(matchingNodes)-1 {
-				errorWriting = writeString(bufferedWriter, "\n")
-				if errorWriting != nil {
-					return errorWriting
-				}
-			}
 		case "pv", "vp":
 			// put it into a node and print that.
 			var parentNode = yaml.Node{Kind: yaml.MappingNode}
@@ -173,14 +180,6 @@ func printResults(matchingNodes []*yqlib.NodeContext, writer io.Writer) error {
 			if err := printValue(mappedDoc.Node, bufferedWriter); err != nil {
 				return err
 			}
-			// Printing our Scalars does not print a new line at the end
-			// we only want to do that if there are more values (so users can easily script extraction of values in the yaml)
-			if index < len(matchingNodes)-1 && mappedDoc.Node.Kind == yaml.ScalarNode {
-				errorWriting = writeString(bufferedWriter, "\n")
-				if errorWriting != nil {
-					return errorWriting
-				}
-			}
 		}
 	}

@@ -200,6 +199,11 @@ func parseDocumentIndex() (bool, int, error) {

 type updateDataFn func(dataBucket *yaml.Node, currentIndex int) error

+func isNullDocument(dataBucket *yaml.Node) bool {
+	return dataBucket.Kind == yaml.DocumentNode && (len(dataBucket.Content) == 0 ||
+		dataBucket.Content[0].Kind == yaml.ScalarNode && dataBucket.Content[0].Tag == "!!null")
+}
+
 func mapYamlDecoder(updateData updateDataFn, encoder yqlib.Encoder) yamlDecoderFn {
 	return func(decoder *yaml.Decoder) error {
 		var dataBucket yaml.Node
@@ -219,8 +223,11 @@ func mapYamlDecoder(updateData updateDataFn, encoder yqlib.Encoder) yamlDecoderF

 			if errorReading == io.EOF && docIndexInt == 0 && currentIndex == 0 {
 				//empty document, lets just make one
-				child := yaml.Node{Kind: yaml.MappingNode}
 				dataBucket = yaml.Node{Kind: yaml.DocumentNode, Content: make([]*yaml.Node, 1)}
+				child := yaml.Node{Kind: yaml.MappingNode}
+				dataBucket.Content[0] = &child
+			} else if isNullDocument(&dataBucket) && (updateAll || docIndexInt == currentIndex) {
+				child := yaml.Node{Kind: yaml.MappingNode}
 				dataBucket.Content[0] = &child
 			} else if errorReading == io.EOF {
 				if !updateAll && currentIndex <= docIndexInt {
@@ -355,6 +362,17 @@ func readUpdateCommands(args []string, expectedArgs int, badArgsMessage string)
 		}

 		log.Debugf("Read write commands file '%v'", updateCommands)
+	} else if sourceYamlFile != "" && len(args) == expectedArgs-1 {
+		log.Debugf("Reading value from %v", sourceYamlFile)
+		var value yaml.Node
+		err := readData(sourceYamlFile, 0, &value)
+		if err != nil && err != io.EOF {
+			return nil, err
+		}
+		log.Debug("args %v", args[expectedArgs-2])
+		updateCommands = make([]yqlib.UpdateCommand, 1)
+		updateCommands[0] = yqlib.UpdateCommand{Command: "update", Path: args[expectedArgs-2], Value: value.Content[0], Overwrite: true}
+
 	} else if len(args) < expectedArgs {
 		return nil, errors.New(badArgsMessage)
 	} else {
--- a/cmd/version.go
+++ b/cmd/version.go
@@ -11,7 +11,7 @@ var (
 	GitDescribe string

 	// Version is main version number that is being run at the moment.
-	Version = "3.1.0"
+	Version = "3.1.2"

 	// VersionPrerelease is a pre-release marker for the version. If this is "" (empty string)
 	// then it means that it is a final release. Otherwise, this is a pre-release
--- a/cmd/write.go
+++ b/cmd/write.go
@@ -43,6 +43,7 @@ format is list of update commands (update or delete) like so:
 	}
 	cmdWrite.PersistentFlags().BoolVarP(&writeInplace, "inplace", "i", false, "update the yaml file inplace")
 	cmdWrite.PersistentFlags().StringVarP(&writeScript, "script", "s", "", "yaml script for updating yaml")
+	cmdWrite.PersistentFlags().StringVarP(&sourceYamlFile, "from", "f", "", "yaml file for updating yaml (as-is)")
 	cmdWrite.PersistentFlags().StringVarP(&customTag, "tag", "t", "", "set yaml tag (e.g. !!int)")
 	cmdWrite.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
 	return cmdWrite
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,16 @@
+yq (3.1.1) eoan; urgency=medium
+
+  * Keeps yaml comments and formatting, can specify yaml tags when updating.
+  * Handles anchors!  https://github.com/mikefarah/yq/issues/310, https://github.com/mikefarah/yq/issues/178
+  * Can print out matching paths and values when splatting https://github.com/mikefarah/yq/issues/20
+  * JSON output works for all commands! Yaml files with multiple documents are printed out as one JSON document per line.
+  * Deep splat (**) to match arbitrary paths
+  * Update scripts file format has changed to be more powerful
+  * Reading and splatting, matching results are printed once per line
+  * Bugfixing
+
+ -- Roberto Mier Escandon <rmescandon@gmail.com>  Tue, 11 Feb 2020 22:18:24 +0100
+
 yq (2.2-1) bionic; urgency=medium

  * Added Windows support for the "--inplace" command flag
--- a/debian/control
+++ b/debian/control
@@ -1,22 +1,23 @@
 Source: yq
 Section: devel
-Priority: extra
+Priority: optional
 Maintainer: Roberto Mier Escandón <rmescandon@gmail.com>
-Build-Depends: debhelper (>= 9),
-               dh-golang,
-               golang-1.10-go,
+Build-Depends: debhelper (>=10),
+               dh-golang (>=1.34),
+               golang-1.13,
+               dpkg-dev,
               rsync
 Standards-Version: 3.9.6
 Homepage: https://github.com/mikefarah/yq.git
 Vcs-Browser: https://github.com/mikefarah/yq.git
 Vcs-Git: https://github.com/mikefarah/yq.git
+XS-Go-Import-Path: github.com/mikefarah/yq
+XSBC-Original-Maintainer: Roberto Mier Escandón <rmescandon@gmail.com>

 Package: yq
 Architecture: any
-Built-Using: ${misc:Built-Using}
-Depends: ${shlibs:Depends},
-         ${misc:Depends}
-Description:
- a lightweight and portable command-line YAML processor
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: a lightweight and portable command-line YAML processor
 .
- The aim of the project is to be the [jq](https://github.com/stedolan/jq) or sed of yaml files.
+ The aim of the project is to be the 
+ [jq](https://github.com/stedolan/jq) or sed of yaml files.
--- a/debian/rules
+++ b/debian/rules
@@ -14,46 +14,46 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.

-
 PROJECT := yq
 OWNER := mikefarah
 REPO := github.com
-GOVERSION := 1.10
+GOVERSION := 1.13
+
 export DH_OPTIONS
 export DH_GOPKG := ${REPO}/${OWNER}/${PROJECT}
 export GOROOT := /usr/lib/go-${GOVERSION}
 export GOPATH := ${CURDIR}/_build
 export GOBIN := ${GOPATH}/bin
 export PATH := ${GOROOT}/bin:${GOBIN}:${PATH}
-BLDPATH := $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
-SRCDIR := ${CURDIR}/_build/src/${DH_GOPKG}
+export GOCACHE := /tmp/gocache
+export GOFLAGS := -mod=vendor
+
+SRCDIR := ${GOPATH}/src/${DH_GOPKG}
 DESTDIR := ${CURDIR}/debian/${PROJECT}
 BINDIR := /usr/bin
 ASSETSDIR := /usr/share/${PROJECT}

 %:
-	dh $@ --buildsystem=golang --with=golang
+	dh $@ --builddirectory=${GOPATH} --buildsystem=golang

 override_dh_auto_build:
 	mkdir -p ${SRCDIR}
 	mkdir -p ${GOBIN}
 	# copy project to local srcdir to build from there
-	rsync -avz --progress --exclude=obj-${BLDPATH} --exclude=debian . $(SRCDIR)
+	rsync -avz --progress --exclude=_build --exclude=debian --exclude=tmp. --exclude=go.mod . $(SRCDIR)
 	# build go code
-	(cd ${SRCDIR} && go install ./...)
-
+	(cd ${SRCDIR} && go install -buildmode=pie ./...)
+	
 override_dh_auto_test:
 	(cd ${SRCDIR} && go test -v ./...)

 override_dh_auto_install:
 	mkdir -p ${DESTDIR}/${BINDIR}
 	mkdir -p ${DESTDIR}/${ASSETSDIR}
-	cp ${CURDIR}/_build/bin/yq ${DESTDIR}/${BINDIR}
-	cp -rf ${SRCDIR}/LICENSE ${DESTDIR}/${ASSETSDIR}
-	cp -rf ${SRCDIR}/README.md ${DESTDIR}/${PLUGINSDIR}
+	cp ${GOBIN}/yq ${DESTDIR}/${BINDIR}
+	cp -f ${SRCDIR}/LICENSE ${DESTDIR}/${ASSETSDIR}
 	chmod a+x ${DESTDIR}/${BINDIR}/yq

 override_dh_auto_clean:
 	dh_clean
-	rm -rf ${CURDIR}/obj-${BLDPATH}
 	rm -rf ${CURDIR}/_build
--- a/go.mod
+++ b/go.mod
@@ -1,13 +1,26 @@
 module github.com/mikefarah/yq/v3

 require (
+	github.com/cosiner/argv v0.0.1 // indirect
+	github.com/go-delve/delve v1.4.0 // indirect
+	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
 	github.com/kylelemons/godebug v1.1.0
+	github.com/mattn/go-colorable v0.1.4 // indirect
+	github.com/mattn/go-isatty v0.0.12 // indirect
+	github.com/mattn/go-runewidth v0.0.8 // indirect
+	github.com/peterh/liner v1.2.0 // indirect
 	github.com/pkg/errors v0.8.1
+	github.com/sirupsen/logrus v1.4.2 // indirect
 	github.com/spf13/cobra v0.0.5
+	github.com/spf13/pflag v1.0.5 // indirect
+	go.starlark.net v0.0.0-20200203144150-6677ee5c7211 // indirect
+	golang.org/x/arch v0.0.0-20191126211547-368ea8f32fff // indirect
+	golang.org/x/crypto v0.0.0-20200210222208-86ce3cb69678 // indirect
+	golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5 // indirect
 	golang.org/x/tools v0.0.0-20191213221258-04c2e8eff935 // indirect
 	gopkg.in/imdario/mergo.v0 v0.3.7 // indirect
 	gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473
-	gopkg.in/yaml.v3 v3.0.0-20191120175047-4206685974f2
+	gopkg.in/yaml.v3 v3.0.0-20200121175148-a6ecf24a6d71
 )

 go 1.13
--- a/go.sum
+++ b/go.sum
@@ -1,17 +1,50 @@
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
+github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
+github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
+github.com/cosiner/argv v0.0.0-20170225145430-13bacc38a0a5 h1:rIXlvz2IWiupMFlC45cZCXZFvKX/ExBcSLrDy2G0Lp8=
+github.com/cosiner/argv v0.0.0-20170225145430-13bacc38a0a5/go.mod h1:p/NrK5tF6ICIly4qwEDsf6VDirFiWWz0FenfYBwJaKQ=
+github.com/cosiner/argv v0.0.1 h1:2iAFN+sWPktbZ4tvxm33Ei8VY66FPCxdOxpncUGpAXE=
+github.com/cosiner/argv v0.0.1/go.mod h1:p/NrK5tF6ICIly4qwEDsf6VDirFiWWz0FenfYBwJaKQ=
+github.com/cpuguy83/go-md2man v1.0.8/go.mod h1:N6JayAiVKtlHSnuTCeuLSQVs75hb8q+dYQLjr7cDsKY=
 github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/go-delve/delve v1.4.0 h1:O+1dw1XBZXqhC6fIPQwGxLlbd2wDRau7NxNhVpw02ag=
+github.com/go-delve/delve v1.4.0/go.mod h1:gQM0ReOJLNAvPuKAXfjHngtE93C2yc/ekTbo7YbAHSo=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
+github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.2 h1:DB17ag19krx9CFsz4o3enTrPXyIXCl+2iCXH/aMAp9s=
+github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
 github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
+github.com/mattn/go-colorable v0.0.0-20170327083344-ded68f7a9561 h1:isR/L+BIZ+rqODWYR/f526ygrBMGKZYFhaaFRDGvuZ8=
+github.com/mattn/go-colorable v0.0.0-20170327083344-ded68f7a9561/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
+github.com/mattn/go-colorable v0.1.4 h1:snbPLB8fVfU9iwbbo30TPtbLRzwWu6aJS6Xh4eaaviA=
+github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
+github.com/mattn/go-isatty v0.0.3 h1:ns/ykhmWi7G9O+8a448SecJU3nSMBXJfqQkl0upE1jI=
+github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
+github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
+github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mattn/go-runewidth v0.0.3 h1:a+kO+98RDGEfo6asOGMmpodZq4FNtnGP54yps8BzLR4=
+github.com/mattn/go-runewidth v0.0.3/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
+github.com/mattn/go-runewidth v0.0.8 h1:3tS41NlGYSmhhe/8fhGRzc+z3AYCw1Fe1WAyLuujKs0=
+github.com/mattn/go-runewidth v0.0.8/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mikefarah/yaml v2.1.0+incompatible h1:nu2cqmzk4WlWJNgnevY88faMcdrDzYGcsUjYFxEpB7Y=
 github.com/mikefarah/yaml/v2 v2.4.0 h1:eYqfooY0BnvKTJxr7+ABJs13n3dg9n347GScDaU2Lww=
 github.com/mikefarah/yaml/v2 v2.4.0/go.mod h1:ahVqZF4n1W4NqwvVnZzC4es67xsW9uR/RRf2RRxieJU=
@@ -19,46 +52,99 @@ github.com/mikefarah/yq v2.4.0+incompatible h1:oBxbWy8R9hI3BIUUxEf0CzikWa2AgnGrG
 github.com/mikefarah/yq/v2 v2.4.1 h1:tajDonaFK6WqitSZExB6fKlWQy/yCkptqxh2AXEe3N4=
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
+github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
+github.com/onsi/ginkgo v1.8.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
+github.com/onsi/gomega v1.5.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
+github.com/peterh/liner v0.0.0-20170317030525-88609521dc4b h1:8uaXtUkxiy+T/zdLWuxa/PG4so0TPZDZfafFNNSaptE=
+github.com/peterh/liner v0.0.0-20170317030525-88609521dc4b/go.mod h1:xIteQHvHuaLYG9IFj6mSxM0fCKrs34IrEQUhOYuGPHc=
+github.com/peterh/liner v1.2.0 h1:w/UPXyl5GfahFxcTOz2j9wCIHNI+pUPr2laqpojKNCg=
+github.com/peterh/liner v1.2.0/go.mod h1:CRroGNssyjTd/qIG2FyxByd2S8JEAZXBl4qUrZf8GS0=
 github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/profile v0.0.0-20170413231811-06b906832ed0/go.mod h1:hJw3o1OdXxsrSjjVksARp5W95eeEaEfptyVZyv6JUPA=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/russross/blackfriday v0.0.0-20180428102519-11635eb403ff/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
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--- a/pkg/yqlib/data_navigator.go
+++ b/pkg/yqlib/data_navigator.go
@@ -1,13 +1,14 @@
 package yqlib

 import (
+	"fmt"
 	"strconv"

 	yaml "gopkg.in/yaml.v3"
 )

 type DataNavigator interface {
-	Traverse(value *yaml.Node, path []string) error
+	Traverse(value *yaml.Node, path []interface{}) error
 }

 type navigator struct {
@@ -20,7 +21,7 @@ func NewDataNavigator(NavigationStrategy NavigationStrategy) DataNavigator {
 	}
 }

-func (n *navigator) Traverse(value *yaml.Node, path []string) error {
+func (n *navigator) Traverse(value *yaml.Node, path []interface{}) error {
 	realValue := value
 	emptyArray := make([]interface{}, 0)
 	if realValue.Kind == yaml.DocumentNode {
@@ -30,17 +31,14 @@ func (n *navigator) Traverse(value *yaml.Node, path []string) error {
 	return n.doTraverse(value, "", path, emptyArray)
 }

-func (n *navigator) doTraverse(value *yaml.Node, head string, tail []string, pathStack []interface{}) error {
-
-	if value.Kind == yaml.ScalarNode {
-		return n.navigationStrategy.Visit(NewNodeContext(value, head, tail, pathStack))
-	}
+func (n *navigator) doTraverse(value *yaml.Node, head interface{}, tail []interface{}, pathStack []interface{}) error {

 	log.Debug("head %v", head)
 	DebugNode(value)
+	var nodeContext = NewNodeContext(value, head, tail, pathStack)

 	var errorDeepSplatting error
-	if head == "**" {
+	if head == "**" && value.Kind != yaml.ScalarNode && n.navigationStrategy.ShouldDeeplyTraverse(nodeContext) {
 		if len(pathStack) == 0 || pathStack[len(pathStack)-1] != "<<" {
 			errorDeepSplatting = n.recurse(value, head, tail, pathStack)
 		}
@@ -52,59 +50,59 @@ func (n *navigator) doTraverse(value *yaml.Node, head string, tail []string, pat
 		return errorDeepSplatting
 	}

-	if len(tail) > 0 {
+	if len(tail) > 0 && value.Kind != yaml.ScalarNode {
 		log.Debugf("diving into %v", tail[0])
 		DebugNode(value)
 		return n.recurse(value, tail[0], tail[1:], pathStack)
 	}
-	return n.navigationStrategy.Visit(NewNodeContext(value, head, tail, pathStack))
+	return n.navigationStrategy.Visit(nodeContext)
 }

 func (n *navigator) getOrReplace(original *yaml.Node, expectedKind yaml.Kind) *yaml.Node {
 	if original.Kind != expectedKind {
-		log.Debug("wanted %v but it was %v, overriding", expectedKind, original.Kind)
+		log.Debug("wanted %v but it was %v, overriding", KindString(expectedKind), KindString(original.Kind))
 		return &yaml.Node{Kind: expectedKind}
 	}
 	return original
 }

-func (n *navigator) recurse(value *yaml.Node, head string, tail []string, pathStack []interface{}) error {
+func (n *navigator) recurse(value *yaml.Node, head interface{}, tail []interface{}, pathStack []interface{}) error {
 	log.Debug("recursing, processing %v, pathStack %v", head, pathStackToString(pathStack))
 	switch value.Kind {
 	case yaml.MappingNode:
 		log.Debug("its a map with %v entries", len(value.Content)/2)
-		return n.recurseMap(value, head, tail, pathStack)
+		headString := fmt.Sprintf("%v", head)
+		return n.recurseMap(value, headString, tail, pathStack)
+
 	case yaml.SequenceNode:
 		log.Debug("its a sequence of %v things!", len(value.Content))

-		var index, errorParsingIndex = strconv.ParseInt(head, 10, 64) // nolint
-		if errorParsingIndex == nil {
-			return n.recurseArray(value, index, head, tail, pathStack)
-		} else if head == "+" {
-			return n.appendArray(value, head, tail, pathStack)
-		}
-		return n.splatArray(value, head, tail, pathStack)
+		switch head := head.(type) {
+		case int64:
+			return n.recurseArray(value, head, head, tail, pathStack)
+		default:

+			if head == "+" {
+				return n.appendArray(value, head, tail, pathStack)
+			} else if len(value.Content) == 0 && head == "**" {
+				return n.navigationStrategy.Visit(NewNodeContext(value, head, tail, pathStack))
+			}
+			return n.splatArray(value, head, tail, pathStack)
+		}
 	case yaml.AliasNode:
 		log.Debug("its an alias!")
 		DebugNode(value.Alias)
 		if n.navigationStrategy.FollowAlias(NewNodeContext(value, head, tail, pathStack)) {
-
-			if value.Alias.Kind == yaml.ScalarNode {
-				log.Debug("alias to a scalar")
-				return n.navigationStrategy.Visit(NewNodeContext(value.Alias, head, tail, pathStack))
-			} else {
-				log.Debug("following the alias")
-				return n.recurse(value.Alias, head, tail, pathStack)
-			}
+			log.Debug("following the alias")
+			return n.recurse(value.Alias, head, tail, pathStack)
 		}
 		return nil
 	default:
-		return nil
+		return n.navigationStrategy.Visit(NewNodeContext(value, head, tail, pathStack))
 	}
 }

-func (n *navigator) recurseMap(value *yaml.Node, head string, tail []string, pathStack []interface{}) error {
+func (n *navigator) recurseMap(value *yaml.Node, head string, tail []interface{}, pathStack []interface{}) error {
 	traversedEntry := false
 	errorVisiting := n.visitMatchingEntries(value, head, tail, pathStack, func(contents []*yaml.Node, indexInMap int) error {
 		log.Debug("recurseMap: visitMatchingEntries for %v", contents[indexInMap].Value)
@@ -115,7 +113,7 @@ func (n *navigator) recurseMap(value *yaml.Node, head string, tail []string, pat
 		if n.navigationStrategy.ShouldTraverse(NewNodeContext(contents[indexInMap+1], head, tail, newPathStack), contents[indexInMap].Value) {
 			log.Debug("recurseMap: Going to traverse")
 			traversedEntry = true
-			// contents[indexInMap+1] = n.getOrReplace(contents[indexInMap+1], guessKind(head, tail, contents[indexInMap+1].Kind))
+			contents[indexInMap+1] = n.getOrReplace(contents[indexInMap+1], guessKind(head, tail, contents[indexInMap+1].Kind))
 			errorTraversing := n.doTraverse(contents[indexInMap+1], head, tail, newPathStack)
 			log.Debug("recurseMap: Finished traversing")
 			n.navigationStrategy.DebugVisitedNodes()
@@ -130,22 +128,33 @@ func (n *navigator) recurseMap(value *yaml.Node, head string, tail []string, pat
 		return errorVisiting
 	}

-	if traversedEntry || n.navigationStrategy.GetPathParser().IsPathExpression(head) || !n.navigationStrategy.AutoCreateMap(NewNodeContext(value, head, tail, pathStack)) {
+	if len(value.Content) == 0 && head == "**" {
+		return n.navigationStrategy.Visit(NewNodeContext(value, head, tail, pathStack))
+	} else if traversedEntry || n.navigationStrategy.GetPathParser().IsPathExpression(head) || !n.navigationStrategy.AutoCreateMap(NewNodeContext(value, head, tail, pathStack)) {
 		return nil
 	}

+	_, errorParsingInt := strconv.ParseInt(head, 10, 64)
+
 	mapEntryKey := yaml.Node{Value: head, Kind: yaml.ScalarNode}
+
+	if errorParsingInt == nil {
+		// fixes a json encoding problem where keys that look like numbers
+		// get treated as numbers and cannot be used in a json map
+		mapEntryKey.Style = yaml.LiteralStyle
+	}
+
 	value.Content = append(value.Content, &mapEntryKey)
 	mapEntryValue := yaml.Node{Kind: guessKind(head, tail, 0)}
 	value.Content = append(value.Content, &mapEntryValue)
-	log.Debug("adding new node %v", head)
+	log.Debug("adding a new node %v - def a string", head)
 	return n.doTraverse(&mapEntryValue, head, tail, append(pathStack, head))
 }

 // need to pass the node in, as it may be aliased
 type mapVisitorFn func(contents []*yaml.Node, index int) error

-func (n *navigator) visitDirectMatchingEntries(node *yaml.Node, head string, tail []string, pathStack []interface{}, visit mapVisitorFn) error {
+func (n *navigator) visitDirectMatchingEntries(node *yaml.Node, head string, tail []interface{}, pathStack []interface{}, visit mapVisitorFn) error {
 	var contents = node.Content
 	for index := 0; index < len(contents); index = index + 2 {
 		content := contents[index]
@@ -160,7 +169,7 @@ func (n *navigator) visitDirectMatchingEntries(node *yaml.Node, head string, tai
 	return nil
 }

-func (n *navigator) visitMatchingEntries(node *yaml.Node, head string, tail []string, pathStack []interface{}, visit mapVisitorFn) error {
+func (n *navigator) visitMatchingEntries(node *yaml.Node, head string, tail []interface{}, pathStack []interface{}, visit mapVisitorFn) error {
 	var contents = node.Content
 	log.Debug("visitMatchingEntries %v", head)
 	DebugNode(node)
@@ -176,7 +185,7 @@ func (n *navigator) visitMatchingEntries(node *yaml.Node, head string, tail []st
 	return n.visitAliases(contents, head, tail, pathStack, visit)
 }

-func (n *navigator) visitAliases(contents []*yaml.Node, head string, tail []string, pathStack []interface{}, visit mapVisitorFn) error {
+func (n *navigator) visitAliases(contents []*yaml.Node, head string, tail []interface{}, pathStack []interface{}, visit mapVisitorFn) error {
 	// merge aliases are defined first, but we only want to traverse them
 	// if we don't find a match on this node first.
 	// traverse them backwards so that the last alias overrides the preceding.
@@ -207,7 +216,7 @@ func (n *navigator) visitAliases(contents []*yaml.Node, head string, tail []stri
 	return nil
 }

-func (n *navigator) visitAliasSequence(possibleAliasArray []*yaml.Node, head string, tail []string, pathStack []interface{}, visit mapVisitorFn) error {
+func (n *navigator) visitAliasSequence(possibleAliasArray []*yaml.Node, head string, tail []interface{}, pathStack []interface{}, visit mapVisitorFn) error {
 	// need to search this backwards too, so that aliases defined last override the preceding.
 	for aliasIndex := len(possibleAliasArray) - 1; aliasIndex >= 0; aliasIndex = aliasIndex - 1 {
 		child := possibleAliasArray[aliasIndex]
@@ -223,7 +232,7 @@ func (n *navigator) visitAliasSequence(possibleAliasArray []*yaml.Node, head str
 	return nil
 }

-func (n *navigator) splatArray(value *yaml.Node, head string, tail []string, pathStack []interface{}) error {
+func (n *navigator) splatArray(value *yaml.Node, head interface{}, tail []interface{}, pathStack []interface{}) error {
 	for index, childValue := range value.Content {
 		log.Debug("processing")
 		DebugNode(childValue)
@@ -231,6 +240,9 @@ func (n *navigator) splatArray(value *yaml.Node, head string, tail []string, pat

 		newPathStack := append(pathStack, index)
 		if n.navigationStrategy.ShouldTraverse(NewNodeContext(childValue, head, tail, newPathStack), childValue.Value) {
+			// here we should not deeply traverse the array if we are appending..not sure how to do that.
+			// need to visit instead...
+			// easiest way is to pop off the head and pass the rest of the tail in.
 			var err = n.doTraverse(childValue, head, tail, newPathStack)
 			if err != nil {
 				return err
@@ -240,14 +252,14 @@ func (n *navigator) splatArray(value *yaml.Node, head string, tail []string, pat
 	return nil
 }

-func (n *navigator) appendArray(value *yaml.Node, head string, tail []string, pathStack []interface{}) error {
+func (n *navigator) appendArray(value *yaml.Node, head interface{}, tail []interface{}, pathStack []interface{}) error {
 	var newNode = yaml.Node{Kind: guessKind(head, tail, 0)}
 	value.Content = append(value.Content, &newNode)
 	log.Debug("appending a new node, %v", value.Content)
 	return n.doTraverse(&newNode, head, tail, append(pathStack, len(value.Content)-1))
 }

-func (n *navigator) recurseArray(value *yaml.Node, index int64, head string, tail []string, pathStack []interface{}) error {
+func (n *navigator) recurseArray(value *yaml.Node, index int64, head interface{}, tail []interface{}, pathStack []interface{}) error {
 	for int64(len(value.Content)) <= index {
 		value.Content = append(value.Content, &yaml.Node{Kind: guessKind(head, tail, 0)})
 	}
--- a/pkg/yqlib/delete_navigation_strategy.go
+++ b/pkg/yqlib/delete_navigation_strategy.go
@@ -1,12 +1,10 @@
 package yqlib

 import (
-	"strconv"
-
 	yaml "gopkg.in/yaml.v3"
 )

-func DeleteNavigationStrategy(pathElementToDelete string) NavigationStrategy {
+func DeleteNavigationStrategy(pathElementToDelete interface{}) NavigationStrategy {
 	parser := NewPathParser()
 	return &NavigationStrategyImpl{
 		visitedNodes: []*NodeContext{},
@@ -17,6 +15,9 @@ func DeleteNavigationStrategy(pathElementToDelete string) NavigationStrategy {
 		autoCreateMap: func(nodeContext NodeContext) bool {
 			return false
 		},
+		shouldDeeplyTraverse: func(nodeContext NodeContext) bool {
+			return true
+		},
 		visit: func(nodeContext NodeContext) error {
 			node := nodeContext.Node
 			log.Debug("need to find and delete %v in here", pathElementToDelete)
@@ -31,12 +32,12 @@ func DeleteNavigationStrategy(pathElementToDelete string) NavigationStrategy {
 		},
 	}
 }
-func deleteFromMap(pathParser PathParser, contents []*yaml.Node, pathStack []interface{}, pathElementToDelete string) []*yaml.Node {
+func deleteFromMap(pathParser PathParser, contents []*yaml.Node, pathStack []interface{}, pathElementToDelete interface{}) []*yaml.Node {
 	newContents := make([]*yaml.Node, 0)
 	for index := 0; index < len(contents); index = index + 2 {
 		keyNode := contents[index]
 		valueNode := contents[index+1]
-		if !pathParser.MatchesNextPathElement(NewNodeContext(keyNode, pathElementToDelete, []string{}, pathStack), keyNode.Value) {
+		if !pathParser.MatchesNextPathElement(NewNodeContext(keyNode, pathElementToDelete, make([]interface{}, 0), pathStack), keyNode.Value) {
 			log.Debug("adding node %v", keyNode.Value)
 			newContents = append(newContents, keyNode, valueNode)
 		} else {
@@ -46,21 +47,23 @@ func deleteFromMap(pathParser PathParser, contents []*yaml.Node, pathStack []int
 	return newContents
 }

-func deleteFromArray(pathParser PathParser, content []*yaml.Node, pathStack []interface{}, pathElementToDelete string) []*yaml.Node {
+func deleteFromArray(pathParser PathParser, content []*yaml.Node, pathStack []interface{}, pathElementToDelete interface{}) []*yaml.Node {

-	var indexToDelete, err = strconv.ParseInt(pathElementToDelete, 10, 64) // nolint
-	if err == nil {
-		return deleteIndexInArray(content, indexToDelete)
-	}
-	log.Debug("%v is not a numeric index, finding matching patterns", pathElementToDelete)
-	var newArray = make([]*yaml.Node, 0)
+	switch pathElementToDelete := pathElementToDelete.(type) {
+	case int64:
+		return deleteIndexInArray(content, pathElementToDelete)
+	default:
+		log.Debug("%v is not a numeric index, finding matching patterns", pathElementToDelete)
+		var newArray = make([]*yaml.Node, 0)

-	for _, childValue := range content {
-		if !pathParser.MatchesNextPathElement(NewNodeContext(childValue, pathElementToDelete, []string{}, pathStack), childValue.Value) {
-			newArray = append(newArray, childValue)
+		for _, childValue := range content {
+			if !pathParser.MatchesNextPathElement(NewNodeContext(childValue, pathElementToDelete, make([]interface{}, 0), pathStack), childValue.Value) {
+				newArray = append(newArray, childValue)
+			}
 		}
+		return newArray
 	}
-	return newArray
+
 }

 func deleteIndexInArray(content []*yaml.Node, index int64) []*yaml.Node {
--- a/pkg/yqlib/lib.go
+++ b/pkg/yqlib/lib.go
@@ -19,6 +19,23 @@ type UpdateCommand struct {
 	Overwrite bool
 }

+func KindString(kind yaml.Kind) string {
+	switch kind {
+	case yaml.ScalarNode:
+		return "ScalarNode"
+	case yaml.SequenceNode:
+		return "SequenceNode"
+	case yaml.MappingNode:
+		return "MappingNode"
+	case yaml.DocumentNode:
+		return "DocumentNode"
+	case yaml.AliasNode:
+		return "AliasNode"
+	default:
+		return "unknown!"
+	}
+}
+
 func DebugNode(value *yaml.Node) {
 	if value == nil {
 		log.Debug("-- node is nil --")
@@ -30,7 +47,7 @@ func DebugNode(value *yaml.Node) {
 			log.Error("Error debugging node, %v", errorEncoding.Error())
 		}
 		encoder.Close()
-		log.Debug("Tag: %v", value.Tag)
+		log.Debug("Tag: %v, Kind: %v", value.Tag, KindString(value.Kind))
 		log.Debug("%v", buf.String())
 	}
 }
@@ -43,7 +60,7 @@ func mergePathStackToString(pathStack []interface{}, appendArrays bool) string {
 	var sb strings.Builder
 	for index, path := range pathStack {
 		switch path.(type) {
-		case int:
+		case int, int64:
 			if appendArrays {
 				sb.WriteString("[+]")
 			} else {
@@ -52,13 +69,22 @@ func mergePathStackToString(pathStack []interface{}, appendArrays bool) string {

 		default:
 			s := fmt.Sprintf("%v", path)
-			hasDot := strings.Contains(s, ".")
-			if hasDot {
-				sb.WriteString("[")
+			var _, errParsingInt = strconv.ParseInt(s, 10, 64) // nolint
+
+			hasSpecial := strings.Contains(s, ".") || strings.Contains(s, "[") || strings.Contains(s, "]") || strings.Contains(s, "\"")
+			hasDoubleQuotes := strings.Contains(s, "\"")
+			wrappingCharacterStart := "\""
+			wrappingCharacterEnd := "\""
+			if hasDoubleQuotes {
+				wrappingCharacterStart = "("
+				wrappingCharacterEnd = ")"
+			}
+			if hasSpecial || errParsingInt == nil {
+				sb.WriteString(wrappingCharacterStart)
 			}
 			sb.WriteString(s)
-			if hasDot {
-				sb.WriteString("]")
+			if hasSpecial || errParsingInt == nil {
+				sb.WriteString(wrappingCharacterEnd)
 			}
 		}

@@ -66,38 +92,47 @@ func mergePathStackToString(pathStack []interface{}, appendArrays bool) string {
 			sb.WriteString(".")
 		}
 	}
-	return sb.String()
+	var pathString = sb.String()
+	log.Debug("got a path string: %v", pathString)
+	return pathString
 }

-func guessKind(head string, tail []string, guess yaml.Kind) yaml.Kind {
-	log.Debug("tail %v", tail)
+func guessKind(head interface{}, tail []interface{}, guess yaml.Kind) yaml.Kind {
+	log.Debug("guessKind: tail %v", tail)
 	if len(tail) == 0 && guess == 0 {
 		log.Debug("end of path, must be a scalar")
 		return yaml.ScalarNode
 	} else if len(tail) == 0 {
 		return guess
 	}
-
-	var _, errorParsingInt = strconv.ParseInt(tail[0], 10, 64)
-	if tail[0] == "+" || errorParsingInt == nil {
+	var next = tail[0]
+	switch next.(type) {
+	case int64:
 		return yaml.SequenceNode
+	default:
+		var nextString = fmt.Sprintf("%v", next)
+		if nextString == "+" {
+			return yaml.SequenceNode
+		}
+		pathParser := NewPathParser()
+		if pathParser.IsPathExpression(nextString) && (guess == yaml.SequenceNode || guess == yaml.MappingNode) {
+			return guess
+		} else if guess == yaml.AliasNode {
+			log.Debug("guess was an alias, okey doke.")
+			return guess
+		} else if head == "**" {
+			log.Debug("deep wildcard, go with the guess")
+			return guess
+		}
+		log.Debug("forcing a mapping node")
+		log.Debug("yaml.SequenceNode %v", guess == yaml.SequenceNode)
+		log.Debug("yaml.ScalarNode %v", guess == yaml.ScalarNode)
+		return yaml.MappingNode
 	}
-	pathParser := NewPathParser()
-	if (pathParser.IsPathExpression(tail[0]) || head == "**") && (guess == yaml.SequenceNode || guess == yaml.MappingNode) {
-		return guess
-	}
-	if guess == yaml.AliasNode {
-		log.Debug("guess was an alias, okey doke.")
-		return guess
-	}
-	log.Debug("forcing a mapping node")
-	log.Debug("yaml.SequenceNode %v", guess == yaml.SequenceNode)
-	log.Debug("yaml.ScalarNode %v", guess == yaml.ScalarNode)
-	return yaml.MappingNode
 }

 type YqLib interface {
-	Get(rootNode *yaml.Node, path string) ([]*NodeContext, error)
+	Get(rootNode *yaml.Node, path string, deeplyTraverseArrays bool) ([]*NodeContext, error)
 	Update(rootNode *yaml.Node, updateCommand UpdateCommand, autoCreate bool) error
 	New(path string) yaml.Node

@@ -115,9 +150,9 @@ func NewYqLib() YqLib {
 	}
 }

-func (l *lib) Get(rootNode *yaml.Node, path string) ([]*NodeContext, error) {
+func (l *lib) Get(rootNode *yaml.Node, path string, deeplyTraverseArrays bool) ([]*NodeContext, error) {
 	var paths = l.parser.ParsePath(path)
-	navigationStrategy := ReadNavigationStrategy()
+	navigationStrategy := ReadNavigationStrategy(deeplyTraverseArrays)
 	navigator := NewDataNavigator(navigationStrategy)
 	error := navigator.Traverse(rootNode, paths)
 	return navigationStrategy.GetVisitedNodes(), error
--- a/pkg/yqlib/navigation_strategy.go
+++ b/pkg/yqlib/navigation_strategy.go
@@ -8,13 +8,13 @@ import (

 type NodeContext struct {
 	Node      *yaml.Node
-	Head      string
-	Tail      []string
+	Head      interface{}
+	Tail      []interface{}
 	PathStack []interface{}
 }

-func NewNodeContext(node *yaml.Node, head string, tail []string, pathStack []interface{}) NodeContext {
-	newTail := make([]string, len(tail))
+func NewNodeContext(node *yaml.Node, head interface{}, tail []interface{}, pathStack []interface{}) NodeContext {
+	newTail := make([]interface{}, len(tail))
 	copy(newTail, tail)

 	newPathStack := make([]interface{}, len(pathStack))
@@ -34,18 +34,20 @@ type NavigationStrategy interface {
 	// node key is the string value of the last element in the path stack
 	// we use it to match against the pathExpression in head.
 	ShouldTraverse(nodeContext NodeContext, nodeKey string) bool
+	ShouldDeeplyTraverse(nodeContext NodeContext) bool
 	GetVisitedNodes() []*NodeContext
 	DebugVisitedNodes()
 	GetPathParser() PathParser
 }

 type NavigationStrategyImpl struct {
-	followAlias        func(nodeContext NodeContext) bool
-	autoCreateMap      func(nodeContext NodeContext) bool
-	visit              func(nodeContext NodeContext) error
-	shouldVisitExtraFn func(nodeContext NodeContext) bool
-	visitedNodes       []*NodeContext
-	pathParser         PathParser
+	followAlias          func(nodeContext NodeContext) bool
+	autoCreateMap        func(nodeContext NodeContext) bool
+	visit                func(nodeContext NodeContext) error
+	shouldVisitExtraFn   func(nodeContext NodeContext) bool
+	shouldDeeplyTraverse func(nodeContext NodeContext) bool
+	visitedNodes         []*NodeContext
+	pathParser           PathParser
 }

 func (ns *NavigationStrategyImpl) GetPathParser() PathParser {
@@ -64,6 +66,10 @@ func (ns *NavigationStrategyImpl) AutoCreateMap(nodeContext NodeContext) bool {
 	return ns.autoCreateMap(nodeContext)
 }

+func (ns *NavigationStrategyImpl) ShouldDeeplyTraverse(nodeContext NodeContext) bool {
+	return ns.shouldDeeplyTraverse(nodeContext)
+}
+
 func (ns *NavigationStrategyImpl) ShouldTraverse(nodeContext NodeContext, nodeKey string) bool {
 	// we should traverse aliases (if enabled), but not visit them :/
 	if len(nodeContext.PathStack) == 0 {
@@ -84,7 +90,6 @@ func (ns *NavigationStrategyImpl) shouldVisit(nodeContext NodeContext) bool {
 		return true
 	}
 	log.Debug("tail len %v", len(nodeContext.Tail))
-	// SOMETHING HERE!

 	if ns.alreadyVisited(pathStack) || len(nodeContext.Tail) != 0 {
 		return false
--- a/pkg/yqlib/path_parser.go
+++ b/pkg/yqlib/path_parser.go
@@ -1,12 +1,13 @@
 package yqlib

 import (
+	"fmt"
 	"strconv"
 	"strings"
 )

 type PathParser interface {
-	ParsePath(path string) []string
+	ParsePath(path string) []interface{}
 	MatchesNextPathElement(nodeContext NodeContext, nodeKey string) bool
 	IsPathExpression(pathElement string) bool
 }
@@ -42,9 +43,11 @@ func (p *pathParser) MatchesNextPathElement(nodeContext NodeContext, nodeKey str
 	if head == "**" || head == "*" {
 		return true
 	}
-	if strings.Contains(head, "==") {
+	var headString = fmt.Sprintf("%v", head)
+
+	if strings.Contains(headString, "==") {
 		log.Debug("ooh deep recursion time")
-		result := strings.SplitN(head, "==", 2)
+		result := strings.SplitN(headString, "==", 2)
 		path := strings.TrimSpace(result[0])
 		value := strings.TrimSpace(result[1])
 		log.Debug("path %v", path)
@@ -70,17 +73,18 @@ func (p *pathParser) MatchesNextPathElement(nodeContext NodeContext, nodeKey str
 		}
 	}

-	return matchesString(head, nodeKey)
+	return matchesString(headString, nodeKey)
 }

-func (p *pathParser) ParsePath(path string) []string {
+func (p *pathParser) ParsePath(path string) []interface{} {
+	var paths = make([]interface{}, 0)
 	if path == "" {
-		return []string{}
+		return paths
 	}
-	return p.parsePathAccum([]string{}, path)
+	return p.parsePathAccum(paths, path)
 }

-func (p *pathParser) parsePathAccum(paths []string, remaining string) []string {
+func (p *pathParser) parsePathAccum(paths []interface{}, remaining string) []interface{} {
 	head, tail := p.nextYamlPath(remaining)
 	if tail == "" {
 		return append(paths, head)
@@ -88,11 +92,16 @@ func (p *pathParser) parsePathAccum(paths []string, remaining string) []string {
 	return p.parsePathAccum(append(paths, head), tail)
 }

-func (p *pathParser) nextYamlPath(path string) (pathElement string, remaining string) {
+func (p *pathParser) nextYamlPath(path string) (pathElement interface{}, remaining string) {
 	switch path[0] {
 	case '[':
 		// e.g [0].blah.cat -> we need to return "0" and "blah.cat"
-		return p.search(path[1:], []uint8{']'}, true)
+		var value, remainingBit = p.search(path[1:], []uint8{']'}, true)
+		var number, errParsingInt = strconv.ParseInt(value, 10, 64) // nolint
+		if errParsingInt == nil {
+			return number, remainingBit
+		}
+		return value, remainingBit
 	case '"':
 		// e.g "a.b".blah.cat -> we need to return "a.b" and "blah.cat"
 		return p.search(path[1:], []uint8{'"'}, true)
--- a/pkg/yqlib/path_parser_test.go
+++ b/pkg/yqlib/path_parser_test.go
@@ -10,20 +10,21 @@ var parser = NewPathParser()

 var parsePathsTests = []struct {
 	path          string
-	expectedPaths []string
+	expectedPaths []interface{}
 }{
-	{"a.b", []string{"a", "b"}},
-	{"a.b.**", []string{"a", "b", "**"}},
-	{"a.b.*", []string{"a", "b", "*"}},
-	{"a.b[0]", []string{"a", "b", "0"}},
-	{"a.b.d[+]", []string{"a", "b", "d", "+"}},
-	{"a", []string{"a"}},
-	{"a.b.c", []string{"a", "b", "c"}},
-	{"\"a.b\".c", []string{"a.b", "c"}},
-	{"a.\"b.c\".d", []string{"a", "b.c", "d"}},
-	{"[1].a.d", []string{"1", "a", "d"}},
-	{"a[0].c", []string{"a", "0", "c"}},
-	{"[0]", []string{"0"}},
+	{"a.b", append(make([]interface{}, 0), "a", "b")},
+	{"a.b.**", append(make([]interface{}, 0), "a", "b", "**")},
+	{"a.b.*", append(make([]interface{}, 0), "a", "b", "*")},
+	{"a.b[0]", append(make([]interface{}, 0), "a", "b", int64(0))},
+	{"a.b.0", append(make([]interface{}, 0), "a", "b", "0")},
+	{"a.b.d[+]", append(make([]interface{}, 0), "a", "b", "d", "+")},
+	{"a", append(make([]interface{}, 0), "a")},
+	{"a.b.c", append(make([]interface{}, 0), "a", "b", "c")},
+	{"\"a.b\".c", append(make([]interface{}, 0), "a.b", "c")},
+	{"a.\"b.c\".d", append(make([]interface{}, 0), "a", "b.c", "d")},
+	{"[1].a.d", append(make([]interface{}, 0), int64(1), "a", "d")},
+	{"a[0].c", append(make([]interface{}, 0), "a", int64(0), "c")},
+	{"[0]", append(make([]interface{}, 0), int64(0))},
 }

 func TestPathParserParsePath(t *testing.T) {
--- a/pkg/yqlib/read_navigation_strategy.go
+++ b/pkg/yqlib/read_navigation_strategy.go
@@ -1,6 +1,6 @@
 package yqlib

-func ReadNavigationStrategy() NavigationStrategy {
+func ReadNavigationStrategy(deeplyTraverseArrays bool) NavigationStrategy {
 	return &NavigationStrategyImpl{
 		visitedNodes: []*NodeContext{},
 		pathParser:   NewPathParser(),
@@ -13,5 +13,18 @@ func ReadNavigationStrategy() NavigationStrategy {
 		visit: func(nodeContext NodeContext) error {
 			return nil
 		},
+		shouldDeeplyTraverse: func(nodeContext NodeContext) bool {
+			var isInArray = false
+			if len(nodeContext.PathStack) > 0 {
+				var lastElement = nodeContext.PathStack[len(nodeContext.PathStack)-1]
+				switch lastElement.(type) {
+				case int:
+					isInArray = true
+				default:
+					isInArray = false
+				}
+			}
+			return deeplyTraverseArrays || !isInArray
+		},
 	}
 }
--- a/pkg/yqlib/update_navigation_strategy.go
+++ b/pkg/yqlib/update_navigation_strategy.go
@@ -10,6 +10,9 @@ func UpdateNavigationStrategy(updateCommand UpdateCommand, autoCreate bool) Navi
 		autoCreateMap: func(nodeContext NodeContext) bool {
 			return autoCreate
 		},
+		shouldDeeplyTraverse: func(nodeContext NodeContext) bool {
+			return true
+		},
 		visit: func(nodeContext NodeContext) error {
 			node := nodeContext.Node
 			changesToApply := updateCommand.Value
--- a/scripts/publish.sh
+++ b/scripts/publish.sh
@@ -32,5 +32,5 @@ upload() {
    done < <(find ./build -mindepth 1 -maxdepth 1 -print0)
 }

-# release
+release
 upload
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -1,5 +1,5 @@
 name: yq
-version: '3.1.0'
+version: '3.1.2'
 summary: A lightweight and portable command-line YAML processor
 description: |
  The aim of the project is to be the jq or sed of yaml files.
Author	SHA1	Message	Date
Mike Farah	2bd2a85a4c	Fixed trailing empty docs	2020-02-21 11:37:59 +11:00
Mike Farah	ceb76e5c17	Fixed trailing empty docs	2020-02-21 11:34:26 +11:00
Mike Farah	44322f0248	Fixed writing to null document	2020-02-21 11:02:10 +11:00
Mike Farah	0347516d82	Always print new line so wc works properly	2020-02-21 10:29:37 +11:00
Mike Farah	a46386e093	Fixed special characters in path for merging	2020-02-18 20:18:49 +11:00
Mike Farah	f5c3beb159	Added test for https://github.com/mikefarah/yq/issues/361	2020-02-18 20:02:09 +11:00
Mike Farah	9864afc4e7	Fixed empty merge problem	2020-02-18 09:15:46 +11:00
Roberto Mier Escandon	69fae2d9cb	Inc Deb version	2020-02-17 09:29:02 +11:00
Mike Farah	83c13ce392	Fixed empty merge problem - need to visit empty arrays and objects	2020-02-13 14:56:58 +11:00
Mike Farah	d83c46eec2	Uncomment line in publish script	2020-02-13 10:22:52 +11:00
Mike Farah	65802f9e0e	updated readme	2020-02-12 16:28:24 +11:00
Mike Farah	07309e1685	Inc snapcraft version	2020-02-12 16:27:25 +11:00
Mike Farah	24e906bae6	Fixed numeric map key issue	2020-02-12 15:40:21 +11:00
Mike Farah	f084f2bb23	Inc version for next release	2020-02-12 12:04:41 +11:00
Mike Farah	96a4161a92	Fixed explode anchors for array roots	2020-02-12 11:03:40 +11:00
Mike Farah	5cc01e43bc	Can supply value for write from file	2020-02-08 14:04:54 +11:00
Mike Farah	9de2573009	Fixed merge append arrays	2020-02-07 16:32:39 +11:00
Mike Farah	29521f2e3e	Simplified when to visit a node	2020-02-07 14:52:37 +11:00
Mike Farah	af5724ba29	Updated readme	2020-02-07 11:28:56 +11:00
Mike Farah	0a39d29c53	Updated readme	2020-02-07 11:26:29 +11:00