Replace expressions nuget package with stripped down library (Azure#182)

* Pull in expressions library as-is

* Strip out unused bits

* Remove private nuget feed references

* Address PR feedback

.github/workflows/build.yml

@@ -43,11 +43,6 @@ jobs:
         with:
           dotnet-version: 3.1.301
 
-      - name: Update NuGet config
-        # workaround for bug in setup-dotnet action (the config samples for authenticated feeds don't work)
-        # encryption does not work on Linux or MacOS
-        run: dotnet nuget update source Official --username bicep --password ${{ secrets.MSAZURE_NUGET_AUTH }} --valid-authentication-types=basic --configfile ./NuGet.config --store-password-in-clear-text
-
       - name: Build
         run: dotnet build --configuration ${{ matrix.configuration }}
 
@@ -119,11 +114,6 @@ jobs:
         with:
           dotnet-version: 3.1.301
 
-      - name: Update NuGet config
-        # workaround for bug in setup-dotnet action (the config samples for authenticated feeds don't work)
-        # encryption does not work on Linux or MacOS
-        run: dotnet nuget update source Official --username bicep --password ${{ secrets.MSAZURE_NUGET_AUTH }} --valid-authentication-types=basic --configfile ./NuGet.config --store-password-in-clear-text
-
       - name: Setup Node.js
         uses: actions/[email protected]
         with:

Bicep.sln

@@ -29,6 +29,10 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Bicep.Core.Samples", "src\B
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Bicep.Cli.UnitTests", "src\Bicep.Cli.UnitTests\Bicep.Cli.UnitTests.csproj", "{29A1AE2B-D47D-41DD-9824-279475D9B6C2}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{9EA83F16-962D-4596-A6E0-DCFF2D8E1FA3}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Arm.Expression", "src\Arm.Expression\Arm.Expression.csproj", "{3229C864-9524-4FDB-BE76-3714ABE7F4E2}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -71,6 +75,10 @@ Global
 		{29A1AE2B-D47D-41DD-9824-279475D9B6C2}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{29A1AE2B-D47D-41DD-9824-279475D9B6C2}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{29A1AE2B-D47D-41DD-9824-279475D9B6C2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3229C864-9524-4FDB-BE76-3714ABE7F4E2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3229C864-9524-4FDB-BE76-3714ABE7F4E2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3229C864-9524-4FDB-BE76-3714ABE7F4E2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3229C864-9524-4FDB-BE76-3714ABE7F4E2}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -85,6 +93,7 @@ Global
 		{F7B0F06D-56CE-4F4A-8EF9-ED6EC3D77EE7} = {76F6CBAF-FE81-4B56-B0DB-DE6FD7174771}
 		{A2E4B91C-3B7F-4CB1-B482-BE40F7709EB5} = {FE323E78-E865-46E2-859A-E4F6FB312C0F}
 		{29A1AE2B-D47D-41DD-9824-279475D9B6C2} = {B02251C3-B01E-40EB-B145-2B03F25FE653}
+		{3229C864-9524-4FDB-BE76-3714ABE7F4E2} = {9EA83F16-962D-4596-A6E0-DCFF2D8E1FA3}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {21F77282-91E7-4304-B1EF-FADFA4F39E37}

NuGet.config

@@ -3,6 +3,5 @@
   <packageSources>
     <clear />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
-    <add key="Official" value="https://pkgs.dev.azure.com/msazure/_packaging/Official/nuget/v3/index.json" />
   </packageSources>
 </configuration>

src/Arm.Expression/Arm.Expression.csproj

@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework> 
+    <Nullable>disable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+  </ItemGroup>
+
+</Project>

src/Arm.Expression/Configuration/ExpressionSerializerSettings.cs

@@ -0,0 +1,25 @@
+// ----------------------------------------------------------------------------
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// ----------------------------------------------------------------------------
+
+namespace Arm.Expression.Configuration
+{
+    /// <summary>
+    /// Expression serializer settings.
+    /// </summary>
+    public class ExpressionSerializerSettings
+    {
+        /// <summary>
+        /// Gets or sets a value indicating whether the expression serializer will include the outer [ and ]
+        /// characters when serializing a LanguageExpression. This setting is ignored if the serializer decides to serialize
+        /// the expression into a single string literal.
+        /// </summary>
+        public bool IncludeOuterSquareBrackets { get; set; } = true;
+
+        /// <summary>
+        /// Gets or sets a value indicating whether the expression serializer will serialize a single string literal
+        /// expression as a string
+        /// </summary>
+        public ExpressionSerializerSingleStringHandling SingleStringHandling { get; set; } = ExpressionSerializerSingleStringHandling.SerializeAsJTokenExpression;
+    }
+}

src/Arm.Expression/Configuration/ExpressionSerializerSingleStringHandling.cs

@@ -0,0 +1,31 @@
+// ----------------------------------------------------------------------------
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// ----------------------------------------------------------------------------
+
+namespace Arm.Expression.Configuration
+{
+    /// <summary>
+    /// Configures how expression serializer handles single string literal expressions.
+    /// </summary>
+    public enum ExpressionSerializerSingleStringHandling
+    {
+        /// <summary>
+        /// Not specified.
+        /// </summary>
+        NotSpecified = 0,
+
+        /// <summary>
+        /// Serializes the single string literal as a string literal expression of the form
+        /// ['string contents']. This is the default behavior. The behavior does not apply for
+        /// Language expressions that are not a single JTokenExpression with a string value.
+        /// </summary>
+        SerializeAsJTokenExpression = 1,
+
+        /// <summary>
+        /// Serializes the single string literal as a string value. If the string begins with a
+        /// [ character, it will be escaped with [[. The behavior does not apply for
+        /// Language expressions that are not a single JTokenExpression with a string value.
+        /// </summary>
+        SerializeAsString = 2,
+    }
+}