fix LZMA archive directory structure (#88)

src/Microsoft.DotNet.Archive/IndexedArchive.cs

@@ -18,7 +18,8 @@ namespace Microsoft.DotNet.Archive
         {
             public DestinationFileInfo(string destinationPath, string hash)
             {
-                DestinationPath = destinationPath;
+                // Normalize the path
+                DestinationPath = destinationPath.Replace(Path.DirectorySeparatorChar, '/');
                 Hash = hash;
             }
 
@@ -30,11 +31,13 @@ namespace Microsoft.DotNet.Archive
         {
             public ArchiveSource(string sourceArchive, string sourceFile, string archivePath, string hash, long size)
             {
-                SourceArchive = sourceArchive;
-                SourceFile = sourceFile;
-                ArchivePath = archivePath;
                 Hash = hash;
                 Size = size;
+
+                // Normalize the paths
+                SourceArchive = sourceArchive?.Replace(Path.DirectorySeparatorChar, '/');
+                SourceFile = sourceFile.Replace(Path.DirectorySeparatorChar, '/');
+                ArchivePath = archivePath.Replace(Path.DirectorySeparatorChar, '/');
             }
 
             public string SourceArchive { get; set; }

src/dotnet-archive/Program.cs

@@ -31,7 +31,8 @@ namespace Microsoft.DotNet.Tools.Archive
             var externals = app.Option("--external <external>...", "External files and directories to consider for extraction", CommandOptionType.MultipleValue);
             var sources = app.Argument("<sources>...", "Files & directory to include in the archive", multipleValues: true);
 
-            app.OnExecute(() => {
+            app.OnExecute(() =>
+            {
 
                 if (extract.HasValue() && sources.Values.Any())
                 {

src/dotnet-archive/dotnet-archive.csproj

@@ -6,7 +6,7 @@
     <TargetFramework>netcoreapp2.0</TargetFramework>
     <OutputType>Exe</OutputType>
     <EnableApiCheck>false</EnableApiCheck>
-    <RuntimeIdentifier>win7-x64</RuntimeIdentifier>
+    <RuntimeIdentifiers>win7-x64;linux-x64</RuntimeIdentifiers>
   </PropertyGroup>
 
   <ItemGroup>