Remove local git branches

remove-local-branches.ps1

# For http://stackoverflow.com/q/31026942/458723
# Removes local branches that not exist on any remote


function IsNot-CurrentLocalBranch($branch)
{
    return $branch -notmatch "^\*"
}


function IsNot-MasterOrDevelop($branch)
{
    return $branch -notmatch "master|develop"
}


function Get-LocalBranches
{
    git branch `
        | where {IsNot-CurrentLocalBranch $_ -and IsNot-MasterOrDevelop} `
        | foreach {$_.Trim()} `
        | where {$_} `
        | foreach {write $_}
}


function IsNot-CurrentRemoteBranch($branch)
{
    $branch -match "->"
}


function Remove-RemoteName($branch)
{
    $pattern = "^.+?/(.+)$"
    if ($branch -match $pattern) {
        write $branch -replace $pattern, '$2'
    }
}


function Get-RemoteBranches
{
    git branch --remote `
        | where {IsNot-CurrentRemoteBranch $_ -and IsNot-MasterOrDevelop} `
        | Remove-RemoteName `
        | where {$_} `
        | foreach {$_.Trim()} `
        | foreach {write $_}
}


function Remove-LocalBranch($branch)
{
    Write-Host "Removing branch $branch"
    git branch -D $branch
}


function Run-Main
{
    $remoteBranches = Get-RemoteBranches

    Get-LocalBranches `
        | where {$_ -notin $remoteBranches} `
        | foreach {Remove-LocalBranch $_}
}


Run-Main