From 1e360a5346d3b83dc07a17930a0115710f60d641 Mon Sep 17 00:00:00 2001
From: Thomas Bolon <tbolon@mb3m.fr>
Date: Tue, 9 Apr 2019 17:18:00 +0200
Subject: [PATCH] prototype

---
 .../NuGet.Build.Tasks.Pack.targets                  |  5 +++--
 .../NuGet.Build.Tasks.Pack/PackTaskLogic.cs         | 13 ++++++++++---
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/NuGet.Core/NuGet.Build.Tasks.Pack/NuGet.Build.Tasks.Pack.targets b/src/NuGet.Core/NuGet.Build.Tasks.Pack/NuGet.Build.Tasks.Pack.targets
index f83333e58ef..f7f6d0fae11 100644
--- a/src/NuGet.Core/NuGet.Build.Tasks.Pack/NuGet.Build.Tasks.Pack.targets
+++ b/src/NuGet.Core/NuGet.Build.Tasks.Pack/NuGet.Build.Tasks.Pack.targets
@@ -318,8 +318,9 @@ Copyright (c) .NET Foundation. All rights reserved.
           Returns="@(_ProjectPathWithVersion)">
     <ItemGroup>
       <_ProjectPathWithVersion Include="$(MSBuildProjectFullPath)">
-        <ProjectVersion Condition="'$(PackageVersion)' != ''">$(PackageVersion)</ProjectVersion>
-        <ProjectVersion Condition="'$(PackageVersion)' == ''">1.0.0</ProjectVersion>
+        <ProjectVersion Condition="'$(ProjectVersion)' == ''">$(PackageDependencyVersion)</ProjectVersion>
+        <ProjectVersion Condition="'$(ProjectVersion)' == ''">$(PackageVersion)</ProjectVersion>
+        <ProjectVersion Condition="'$(ProjectVersion)' == ''">1.0.0</ProjectVersion>
       </_ProjectPathWithVersion>
     </ItemGroup>
   </Target>
diff --git a/src/NuGet.Core/NuGet.Build.Tasks.Pack/PackTaskLogic.cs b/src/NuGet.Core/NuGet.Build.Tasks.Pack/PackTaskLogic.cs
index 3857ede28b3..232bb18c340 100644
--- a/src/NuGet.Core/NuGet.Build.Tasks.Pack/PackTaskLogic.cs
+++ b/src/NuGet.Core/NuGet.Build.Tasks.Pack/PackTaskLogic.cs
@@ -803,13 +803,20 @@ private static void InitializeProjectDependencies(
                         continue;
                     }
 
-                    var versionToUse = targetLibrary.Version;
+                    var rangeToUse = new VersionRange(targetLibrary.Version);
 
                     // Use the project reference version obtained at build time if it exists, otherwise fallback to the one in assets file. 
                     if (projectRefToVersionMap.TryGetValue(projectReference.ProjectPath, out var projectRefVersion))
                     {
-                        versionToUse = NuGetVersion.Parse(projectRefVersion);
+                        // First we try to use the projectRefVersion as a Version Range, to allow the referenced project to define the entire range
+                        if (!VersionRange.TryParse(projectRefVersion, out rangeToUse))
+                        {
+                            // Else, we fallback to parsing the range as a simplier version the creating a default range "[x,)"
+                            var versionToUse = NuGetVersion.Parse(projectRefVersion);
+                            rangeToUse = new VersionRange(versionToUse);
+                        }
                     }
+
                     // TODO: Implement <TreatAsPackageReference>false</TreatAsPackageReference>
                     //   https://github.com/NuGet/Home/issues/3891
                     //
@@ -818,7 +825,7 @@ private static void InitializeProjectDependencies(
                     {
                         LibraryRange = new LibraryRange(
                             targetLibrary.Name,
-                            new VersionRange(versionToUse),
+                            rangeToUse,
                             LibraryDependencyTarget.All),
                         IncludeType = projectReference.IncludeAssets & ~projectReference.ExcludeAssets,
                         SuppressParent = projectReference.PrivateAssets