Display project version in ASP.NET MVC Core application (RC2)

Question

How do I display application version from the project.json? I am using gulp-bump to autoincrement version, but I can't show the recent version. Here is what I'm trying:

@(Microsoft.Extensions.PlatformAbstractions.PlatformServices.Default.Application.ApplicationVersion)

This does not work, it displays "1.0.0" instead of real value from project.json

I also tried this but it looks like it is no longer works in RC2:

@inject Microsoft.Extensions.PlatformAbstractions.IApplicationEnvironment appEnv
My version number is @(appEnv.ApplicationVersion)

Answer 1

As per this announcement, IApplicationEnvironment no longer exists.

You can still access the ApplicationVersion statically using:

Microsoft.Extensions.PlatformAbstractions.PlatformServices.Default.Application.ApplicationVersion

---

It works for me. My project.json looks like this:

{
    "version": "1.0.0.2",
    // all the rest
}

And in my index view, I have the following line at the top:

@Microsoft.Extensions.PlatformAbstractions.PlatformServices.Default.Application.ApplicationVersion

And I correctly get 1.0.0.2 in the output. And when I change that value and restart (build) the application, the new version is shown there.

Answer 2

Since Platform Abstractions were obly shipped with ASP.NET Core 1 and has been removed from ASP.NET Core 2 and up, if you're using version 2 or above, you must replace this row:

Microsoft.Extensions.PlatformAbstractions.PlatformServices.Default.Application.ApplicationVersion

with this one:

System.Reflection.Assembly.GetEntryAssembly().GetName().Version

as specified in "Replacing API usage" section of the previous linked page.

Answer 3

I used a different approach, as stated in this answer which gave me a SemVer version (1.0.0) which is actually in my project.json and not 1.0.0.0, which is returned by accepted answer. So the code would be:

var runtimeVersion = typeof(Startup)
            .GetTypeInfo()
            .Assembly
            .GetCustomAttribute<AssemblyInformationalVersionAttribute>()
            .InformationalVersion;

It returns correct suffixed versions as well, i.e. something like "2.0.1-dev01"

Answer 4

This worked for me for .NET Core 2.0.5.

Code:

var assemblyVersion = System.Reflection.Assembly.GetEntryAssembly().GetCustomAttribute<System.Reflection..AssemblyInformationalVersionAttribute>().InformationalVersion;
Console.WriteLine(assemblyVersion);

myproject.csproj

<PropertyGroup>
    <VersionPrefix>1.0.0.1</VersionPrefix>
    <VersionSuffix>alpha</VersionSuffix>
</PropertyGroup>

outputs

1.0.0.1-alpha

Answer 5

If you end up here and you are trying to manage project versions through the solution version.

Adding a Directory.Build.props file to the solution directory containing:

<Project>
  <PropertyGroup>
    <VersionPrefix>1.2.3</VersionPrefix>
  </PropertyGroup>
</Project>

Will set the Version property of all included projects that 'Get version from parent solution'.

Not ideal, but it allows you to manage the version in a single place for a version locked multi-project solution.