debug: Allow type-specification of JSON output for cortex-debug (#2393)

* debug: Allow type-specification of JSON output for cortex-debug

* Improved JSON properties generation

commands/debug/debug_info.go

@@ -18,7 +18,8 @@ package debug
 import (
 	"context"
 	"encoding/json"
-	"regexp"
+	"slices"
+	"strconv"
 	"strings"
 
 	"github.com/arduino/arduino-cli/arduino"
@@ -210,33 +211,89 @@ func getDebugProperties(req *rpc.GetDebugConfigRequest, pme *packagemanager.Expl
 //	my.indexed.array.2=third
 //
 // into the corresponding JSON arrays.
+// If a value should be converted into a JSON type different from string, the value
+// may be prefiex with "[boolean]", "[number]", or "[object]":
+//
+//	my.stringValue=a string
+//	my.booleanValue=[boolean]true
+//	my.numericValue=[number]20
 func convertToJsonMap(in *properties.Map) string {
-	// XXX: Maybe this method could be a good candidate for propertis.Map?
-
-	// Find the values that should be kept as is, and the indexed arrays
-	// that should be later converted into arrays.
-	arraysKeys := map[string]bool{}
-	stringKeys := []string{}
-	trailingNumberMatcher := regexp.MustCompile(`^(.*)\.[0-9]+$`)
-	for _, k := range in.Keys() {
-		match := trailingNumberMatcher.FindAllStringSubmatch(k, -1)
-		if len(match) > 0 && len(match[0]) > 1 {
-			arraysKeys[match[0][1]] = true
-		} else {
-			stringKeys = append(stringKeys, k)
+	data, _ := json.MarshalIndent(convertToRawInterface(in), "", "  ")
+	return string(data)
+}
+
+func allNumerics(in []string) bool {
+	for _, i := range in {
+		for _, c := range i {
+			if c < '0' || c > '9' {
+				return false
+			}
 		}
 	}
+	return true
+}
 
-	// Compose a map that can be later marshaled into JSON keeping
-	// the arrays where they are expected to be.
-	res := map[string]any{}
-	for _, k := range stringKeys {
-		res[k] = in.Get(k)
+func convertToRawInterface(in *properties.Map) any {
+	subtrees := in.FirstLevelOf()
+	keys := in.FirstLevelKeys()
+
+	if allNumerics(keys) {
+		// Compose an array
+		res := []any{}
+		slices.SortFunc(keys, func(x, y string) int {
+			nx, _ := strconv.Atoi(x)
+			ny, _ := strconv.Atoi(y)
+			return nx - ny
+		})
+		for _, k := range keys {
+			switch {
+			case subtrees[k] != nil:
+				res = append(res, convertToRawInterface(subtrees[k]))
+			default:
+				res = append(res, convertToRawValue(in.Get(k)))
+			}
+		}
+		return res
 	}
-	for k := range arraysKeys {
-		res[k] = in.ExtractSubIndexLists(k)
+
+	// Compose an object
+	res := map[string]any{}
+	for _, k := range keys {
+		switch {
+		case subtrees[k] != nil:
+			res[k] = convertToRawInterface(subtrees[k])
+		default:
+			res[k] = convertToRawValue(in.Get(k))
+		}
 	}
+	return res
+}
 
-	data, _ := json.MarshalIndent(res, "", "  ")
-	return string(data)
+func convertToRawValue(v string) any {
+	switch {
+	case strings.HasPrefix(v, "[boolean]"):
+		v = strings.TrimSpace(strings.TrimPrefix(v, "[boolean]"))
+		if strings.EqualFold(v, "true") {
+			return true
+		} else if strings.EqualFold(v, "false") {
+			return false
+		}
+	case strings.HasPrefix(v, "[number]"):
+		v = strings.TrimPrefix(v, "[number]")
+		if i, err := strconv.Atoi(v); err == nil {
+			return i
+		} else if f, err := strconv.ParseFloat(v, 64); err == nil {
+			return f
+		}
+	case strings.HasPrefix(v, "[object]"):
+		v = strings.TrimPrefix(v, "[object]")
+		var o interface{}
+		if err := json.Unmarshal([]byte(v), &o); err == nil {
+			return o
+		}
+	case strings.HasPrefix(v, "[string]"):
+		v = strings.TrimPrefix(v, "[string]")
+	}
+	// default or conversion error, return string as is
+	return v
 }

commands/debug/debug_test.go

@@ -24,6 +24,7 @@ import (
 	"github.com/arduino/arduino-cli/arduino/cores/packagemanager"
 	rpc "github.com/arduino/arduino-cli/rpc/cc/arduino/cli/commands/v1"
 	"github.com/arduino/go-paths-helper"
+	"github.com/arduino/go-properties-orderedmap"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -106,3 +107,99 @@ func TestGetCommandLine(t *testing.T) {
 	commandToTest2 := strings.Join(command2, " ")
 	assert.Equal(t, filepath.FromSlash(goldCommand2), filepath.FromSlash(commandToTest2))
 }
+
+func TestConvertToJSONMap(t *testing.T) {
+	testIn := properties.NewFromHashmap(map[string]string{
+		"k":                   "v",
+		"string":              "[string]aaa",
+		"bool":                "[boolean]true",
+		"number":              "[number]10",
+		"number2":             "[number]10.2",
+		"object":              `[object]{ "key":"value", "bool":true }`,
+		"array.0":             "first",
+		"array.1":             "second",
+		"array.2":             "[boolean]true",
+		"array.3":             "[number]10",
+		"array.4":             `[object]{ "key":"value", "bool":true }`,
+		"array.5.k":           "v",
+		"array.5.bool":        "[boolean]true",
+		"array.5.number":      "[number]10",
+		"array.5.number2":     "[number]10.2",
+		"array.5.object":      `[object]{ "key":"value", "bool":true }`,
+		"array.6.sub.k":       "v",
+		"array.6.sub.bool":    "[boolean]true",
+		"array.6.sub.number":  "[number]10",
+		"array.6.sub.number2": "[number]10.2",
+		"array.6.sub.object":  `[object]{ "key":"value", "bool":true }`,
+		"array.7.0":           "v",
+		"array.7.1":           "[boolean]true",
+		"array.7.2":           "[number]10",
+		"array.7.3":           "[number]10.2",
+		"array.7.4":           `[object]{ "key":"value", "bool":true }`,
+		"array.8.array.0":     "v",
+		"array.8.array.1":     "[boolean]true",
+		"array.8.array.2":     "[number]10",
+		"array.8.array.3":     "[number]10.2",
+		"array.8.array.4":     `[object]{ "key":"value", "bool":true }`,
+		"sub.k":               "v",
+		"sub.bool":            "[boolean]true",
+		"sub.number":          "[number]10",
+		"sub.number2":         "[number]10.2",
+		"sub.object":          `[object]{ "key":"value", "bool":true }`,
+	})
+	jsonString := convertToJsonMap(testIn)
+	require.JSONEq(t, `{
+		"k": "v",
+		"string": "aaa",
+		"bool": true,
+		"number": 10,
+		"number2": 10.2,
+		"object": { "key":"value", "bool":true },
+		"array": [
+			"first",
+			"second",
+			true,
+			10,
+			{ "key":"value", "bool":true },
+			{
+				"k": "v",
+				"bool": true,
+				"number": 10,
+				"number2": 10.2,
+				"object": { "key":"value", "bool":true }
+			},
+			{
+				"sub": {
+					"k": "v",
+					"bool": true,
+					"number": 10,
+					"number2": 10.2,
+					"object": { "key":"value", "bool":true }
+				}
+			},
+			[
+				"v",
+				true,
+				10,
+				10.2,
+				{ "key":"value", "bool":true }
+			],
+			{
+				"array": [
+					"v",
+					true,
+					10,
+					10.2,
+					{ "key":"value", "bool":true }
+				]
+			}
+		],
+		"sub": {
+			"k": "v",
+			"bool": true,
+			"number": 10,
+			"number2": 10.2,
+			"object": { "key":"value", "bool":true }
+		}
+	}`, jsonString)
+}

docs/platform-specification.md

@@ -1403,6 +1403,37 @@ will result in the following JSON to be merged in the Arduino IDE generated `lau
 }
 ```
 
+All the values are converted by default to a string in the resulting JSON. If another type is needed the value can be
+prefixed with the tags `[boolean]`, `[number]`, `[string]` or `[object]` to force a specific type in the JSON. Moreover
+the hierarchy of the properties may be used to build JSON objects. For example:
+
+```
+debug.cortex-debug.custom.aBoolean=[boolean]true
+debug.cortex-debug.custom.aNumber=[number]10
+debug.cortex-debug.custom.anotherNumber=[number]10.20
+debug.cortex-debug.custom.anObject=[object]{"key":"value", "boolean":true}
+debug.cortex-debug.custom.anotherObject.key=value
+debug.cortex-debug.custom.anotherObject.boolean=[boolean]true
+```
+
+will result in the following JSON:
+
+```json
+{
+  "aBoolean": true,
+  "aNumber": 10,
+  "anotherNumber": 10.2,
+  "anObject": {
+    "boolean": true,
+    "key": "value"
+  },
+  "anotherObject": {
+    "boolean": true,
+    "key": "value"
+  }
+}
+```
+
 ### Optimization level for debugging
 
 The compiler optimization level that is appropriate for normal usage will often not provide a good experience while

internal/integrationtest/debug/debug_test.go

@@ -133,6 +133,19 @@ func testAllDebugInformation(t *testing.T, env *integrationtest.Environment, cli
 			},
 			"svd_file": "svd-file",
 			"cortex-debug_custom_configuration": {
+				"aBoolean": true,
+				"aStringBoolean": "true",
+				"aStringNumber": "10",
+				"aNumber": 10,
+				"anotherNumber": 10.2,
+				"anObject": {
+					"boolean": true,
+					"key": "value"
+				},
+				"anotherObject": {
+					"boolean": true,
+					"key": "value"
+				},
 				"anotherStringParamer": "hellooo",
 				"overrideRestartCommands": [
 					"monitor reset halt",
@@ -176,6 +189,19 @@ func testAllDebugInformation(t *testing.T, env *integrationtest.Environment, cli
 			},
 			"svd_file": "svd-file",
 			"cortex-debug_custom_configuration": {
+				"aBoolean": true,
+				"aStringBoolean": "true",
+				"aStringNumber": "10",
+				"aNumber": 10,
+				"anotherNumber": 10.2,
+				"anObject": {
+					"boolean": true,
+					"key": "value"
+				},
+				"anotherObject": {
+					"boolean": true,
+					"key": "value"
+				},
 				"anotherStringParamer": "hellooo",
 				"overrideRestartCommands": [
 					"monitor reset halt",

internal/integrationtest/debug/testdata/hardware/my/samd/boards.txt

@@ -44,6 +44,14 @@ my.debug.cortex-debug.custom.overrideRestartCommands.1=monitor gdb_sync
 my.debug.cortex-debug.custom.overrideRestartCommands.2=thb setup
 my.debug.cortex-debug.custom.overrideRestartCommands.3=c
 my.debug.cortex-debug.custom.anotherStringParamer=hellooo
+my.debug.cortex-debug.custom.aBoolean=[boolean]true
+my.debug.cortex-debug.custom.aStringBoolean=true
+my.debug.cortex-debug.custom.aNumber=[number]10
+my.debug.cortex-debug.custom.anotherNumber=[number]10.20
+my.debug.cortex-debug.custom.aStringNumber=10
+my.debug.cortex-debug.custom.anObject=[object]{"key":"value", "boolean":true}
+my.debug.cortex-debug.custom.anotherObject.key=value
+my.debug.cortex-debug.custom.anotherObject.boolean=[boolean]true
 my.debug.svd_file=svd-file
 
 my2.name=My Cool Board