Cake.SimpleGitVer

Cake.SimpleGitVer

A Cake addin to derive build versions from git describe and a simple, numeric tag convention.

This addin is intentionally lightweight: it shells out to the Git CLI (cross-platform) and parses the single-line output.

Tag convention

Create tags like:

AIX1000-v3.1.1.1097

Where the tag is:

<TagPrefix><Major>.<Minor>.<Patch>.<Build>

Then git describe will yield (examples):

• On the tag: AIX1000-v3.1.1.1097
• 12 commits ahead: AIX1000-v3.1.1.1097-12-gbb7f5a99c1
• Dirty working tree: AIX1000-v3.1.1.1097-12-gbb7f5a99c1-dirty

The addin returns a rich result including BaseBuild, CommitsAhead, Sha, and IsDirty. Optionally, it can auto-increment the build component:

• FinalBuild = BaseBuild + CommitsAhead (when AutoIncrementBuildNumber = true)

Usage

Include an Add-In directive

#addin "nuget:?package=Cake.SimpleGitVer&loaddependencies=true"

Example

Task("Print-Version")
    .Does(context =>
{
    var settings = new SimpleGitVerSettings
    {
        // Example: "AIX1000-v"
        TagPrefix = "AIX1000-v",

        // Optional: path to the git executable
        GitExe = "git",

        // If true: FinalBuild = BaseBuild + CommitsAhead
        AutoIncrementBuildNumber = true
    };

    var r = GetSimpleGitVer(settings);

    Information("RawDescribe: {0}", r.RawDescribe);
    Information("BaseVersion: {0}", r.BaseVersion);
    Information("Version: {0}", r.Version);
    Information("CommitsAhead: {0}", r.CommitsAhead);
    Information("Sha: {0}", r.Sha);
    Information("IsDirty: {0}", r.IsDirty);
});

API

Alias

SimpleGitResult GetSimpleGitVer(this ICakeContext context, SimpleGitVerSettings settings)

Result

public sealed record SimpleGitResult(
    int Major,
    int Minor,
    int Patch,
    int BaseBuild,
    int FinalBuild,
    int CommitsAhead,
    string Sha,
    bool IsDirty,
    string RawDescribe,
    string TagPrefix)
{
    public Version BaseVersion => new(Major, Minor, Patch, BaseBuild);
    public Version Version => new(Major, Minor, Patch, FinalBuild);
}

Settings

public sealed class SimpleGitVerSettings
{
    public string TagPrefix { get; set; } = "";
    public string GitExe { get; set; } = "git";
    public bool AutoIncrementBuildNumber { get; set; } = true;
}

Notes

• The addin executes: git describe --tags --long --dirty --match "<TagPrefix>*"
• The output is expected to be a single line. If Git produces no output or an unexpected format, the addin throws a CakeException.
• If your build agent does not fetch tags, git describe will fail. Ensure your CI checkout fetches tags.

License

MIT