Expand property references in version property of platform.txt (arduino#1830)

* Added test for issue arduino#1823

* Do not assume that version in platforms.txt is correct semver

* When parsing version in platform.txt perform a variable replace

* Update internal/integrationtest/core/testdata/issue_1823/DxCore-dev/megaavr/README.md

* Update internal/integrationtest/core/core_list_test.go

Co-authored-by: per1234 <[email protected]>

Author: cmaglie

Diff for: arduino/cores/packagemanager/loader.go

@@ -23,6 +23,7 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/arduino/arduino-cli/arduino"
 	"github.com/arduino/arduino-cli/arduino/cores"
 	"github.com/arduino/arduino-cli/arduino/discovery"
 	"github.com/arduino/arduino-cli/configuration"
@@ -196,7 +197,11 @@ func (pm *PackageManager) loadPlatform(targetPackage *cores.Package, architectur
 			return fmt.Errorf("%s: %w", tr("loading platform.txt"), err)
 		}
 
-		version := semver.MustParse(platformProperties.Get("version"))
+		versionString := platformProperties.ExpandPropsInString(platformProperties.Get("version"))
+		version, err := semver.Parse(versionString)
+		if err != nil {
+			return &arduino.InvalidVersionError{Cause: fmt.Errorf("%s: %s", platformTxtPath, err)}
+		}
 
 		// Check if package_bundled_index.json exists.
 		// This is used indirectly by the Java IDE since it's necessary for the arduino-builder

Diff for: internal/integrationtest/core/core_list_test.go

@@ -0,0 +1,47 @@
+// This file is part of arduino-cli.
+//
+// Copyright 2022 ARDUINO SA (http://www.arduino.cc/)
+//
+// This software is released under the GNU General Public License version 3,
+// which covers the main part of arduino-cli.
+// The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to
+// modify or otherwise use the software for commercial activities involving the
+// Arduino software without disclosing the source code of your own applications.
+// To purchase a commercial license, send an email to [email protected].
+
+package core_test
+
+import (
+	"testing"
+
+	"github.com/arduino/arduino-cli/internal/integrationtest"
+	"github.com/arduino/go-paths-helper"
+	"github.com/stretchr/testify/require"
+	"go.bug.st/testsuite"
+	"go.bug.st/testsuite/requirejson"
+)
+
+func TestCorrectHandlingOfPlatformVersionProperty(t *testing.T) {
+	// See: https://github.com/arduino/arduino-cli/issues/1823
+
+	env := testsuite.NewEnvironment(t)
+	defer env.CleanUp()
+
+	cli := integrationtest.NewArduinoCliWithinEnvironment(env, &integrationtest.ArduinoCLIConfig{
+		ArduinoCLIPath:         paths.New("..", "..", "..", "arduino-cli"),
+		UseSharedStagingFolder: true,
+	})
+
+	// Copy test platform
+	testPlatform := paths.New("testdata", "issue_1823", "DxCore-dev")
+	require.NoError(t, testPlatform.CopyDirTo(cli.SketchbookDir().Join("hardware", "DxCore-dev")))
+
+	// Trigger problematic call
+	out, _, err := cli.Run("core", "list", "--format", "json")
+	require.NoError(t, err)
+	requirejson.Contains(t, out, `[{"id":"DxCore-dev:megaavr","installed":"1.4.10","name":"DxCore"}]`)
+}

Diff for: internal/integrationtest/core/testdata/issue_1823/DxCore-dev/megaavr/README.md

@@ -0,0 +1,3 @@
+This is an extract of https://github.com/SpenceKonde/DxCore at the revision 1.4.10.
+
+https://github.com/SpenceKonde/DxCore/commit/b0bb30f8cb703991d3fe97a3241091a221eab09b