Manually Release Maven Project.

Release.ps1

param(
    [Switch]
    $GetVersion,
    $ReleaseVersion,
    $NextVersion,
    $Setting
)

function Start-Maven()
{
    Write-Host "Run: mvn $args" -ForegroundColor Green
    if ($Setting)
    {
        mvn -s "$Setting" $args
    }
    else
    {
        mvn $args
    }
    if (-not($?))
    {
        throw "Maven failed"
    }
}

function Start-Git()
{
    Write-Host "Run: git $args" -ForegroundColor Green
    git $args
}

function Resolve-CurrentVersion()
{
    $NS = @{
        mvn = "http://maven.apache.org/POM/4.0.0"
    }
    Select-Xml -Path .\pom.xml -XPath /mvn:project/mvn:version -Namespace $NS `
      | Select-Object -ExpandProperty Node `
      | Select-Object -ExpandProperty InnerText
}

function Resolve-ReleaseVersion()
{
    $V = Resolve-CurrentVersion
    $V.Replace("-SNAPSHOT", "")
}

function Resolve-NextVersion()
{
    $V = Resolve-ReleaseVersion
    $V = $V.Split(".")
    $V[2] = [int]$V[2] + 1
    $V = $V -join "."
    $V + "-SNAPSHOT"
}

if ($GetVersion)
{
    Resolve-CurrentVersion
    exit
}
if (-not($ReleaseVersion))
{
    $ReleaseVersion = Resolve-ReleaseVersion
}
if (-not($NextVersion))
{
    $NextVersion = Resolve-NextVersion
}
Write-Output "Release version: $ReleaseVersion"
Write-Output "Next version: $NextVersion"
if ($Setting)
{
    Write-Output "Setting: $Setting"
}
Start-Maven -B versions:set "-DnewVersion=$ReleaseVersion"
Start-Git commit -a -m "Release $ReleaseVersion"
Start-Git tag "$ReleaseVersion"
Start-Maven clean package -P production
Start-Maven -B versions:set "-DnewVersion=$NextVersion"
Start-Git commit -a -m "Update next version"