Unable to use SemVer2 version format

[softarch74]

I am trying build an installer using a semver2 compatible version, like so:

4.4.0-preview.60831.51

This is failing to build, with the following error:

"4.4.0-preview.60831.51' is not a valid version string"

Is Squirrel not SemVer2 compliant?

[anaisbetts]

Probably not

[quasarea]

I looks like regex there

private static readonly Regex _semanticVersionRegex = new Regex(@"^(?<Version>\d+(\s*\.\s*\d+){0,3})(?<Release>-[a-z][0-9a-z-]*)?$", _flags);

is just not accepting the dot even if https://semver.org/ allows it

it is in vendor\nuget\src\Core\SemanticVersion.cs which comes from
https://github.com/anaisbetts/NuGet/blob/50f8d9e438fe948d7109501bd10f6024d0585b70/src/Core/SemanticVersion.cs and is old version of what is now in https://github.com/NuGet/NuGet.Client/blob/dev/src/NuGet.Clients/NuGet.VisualStudio/LegacyTypes/SemanticVersion.cs

The nuget project fork is described "A fork of http://nuget.codeplex.com/ with changes I and others will curate and contribute back to the main project." but I don't think it ever contributed back

There are some differences between those version like normalisation was introduced, so perhaps nuget can deal with it now, also for nuget it is legacy

[gojanpaolo]

See PR #865 which adds support for NuGet.SemanticVersion

[iameli-streams]

Hm. My app uses X.Y.Z-SHA versioning, which was working just fine with versions like 0.1.3-fa71bac9. But then I woke up today to a failing build because 0.1.3-41ee5c4c is invalid. Looking at that regex... why does the first character after the - need to be a letter? Why (?<Release>-[a-z][0-9a-z-]*)? and not (?<Release>-[0-9a-z-]*)?