fix linux path for flutter and add xz extractor

Author: hjrocha

config/runtimes-installer.go

@@ -128,10 +128,11 @@ func downloadAndExtractRuntime(runtimeInfo *plugins.RuntimeInfo) error {
 
 	if strings.HasSuffix(fileName, ".zip") {
 		err = utils.ExtractZip(file.Name(), runtimesDir)
+	} else if strings.HasSuffix(fileName, ".tar.xz") || strings.HasSuffix(fileName, ".txz") {
+		err = utils.ExtractTarXz(file, runtimesDir)
 	} else {
 		err = utils.ExtractTarGz(file, runtimesDir)
 	}
-
 	if err != nil {
 		return fmt.Errorf("failed to extract runtime: %w", err)
 	}

plugins/runtimes/flutter/plugin.yaml

@@ -2,14 +2,14 @@ name: flutter
 description: Dart Flutterruntime
 default_version: "3.7.2"
 download:
-  url_template: "https://storage.googleapis.com/flutter_infra_release/releases/stable/{{.OS}}/flutter_{{.OS}}_{{.Arch}}_{{.Version}}-stable.{{.Extension}}"
+  url_template: "https://storage.googleapis.com/flutter_infra_release/releases/stable/{{.OS}}/flutter_{{.OS}}_{{.Version}}-stable.{{.Extension}}"
   file_name_template: "flutter"
   extension:
-    default: "zip"
     linux: "tar.xz"
+    default: "zip"
   arch_mapping:
-    "386": "ia32"
-    "amd64": "x64"
+    "386": ""
+    "amd64": ""
     "arm": "arm"
     "arm64": "arm64"
   os_mapping:

plugins/shared.go

@@ -8,6 +8,7 @@ import (
 
 // ExtensionConfig defines the file extension based on OS
 type ExtensionConfig struct {
+	Linux  string `yaml:"linux"`
 	Windows string `yaml:"windows"`
 	Default string `yaml:"default"`
 }
@@ -80,6 +81,9 @@ func GetExtension(extension ExtensionConfig, goos string) string {
 	if goos == "windows" {
 		return extension.Windows
 	}
+	if goos == "linux" {
+		return extension.Linux
+	}
 	return extension.Default
 }
 

utils/extract.go

@@ -14,8 +14,16 @@ import (
 )
 
 func ExtractTarGz(archive *os.File, targetDir string) error {
+	return ExtractTar(archive, targetDir, archiver.Gz{})
+}
+
+func ExtractTarXz(archive *os.File, targetDir string) error {
+	return ExtractTar(archive, targetDir, archiver.Xz{})
+}
+
+func ExtractTar(archive *os.File, targetDir string, compression archiver.Compression) error {
 	format := archiver.CompressedArchive{
-		Compression: archiver.Gz{},
+		Compression: compression,
 		Archival:    archiver.Tar{},
 	}