Automatically pull a git branch and merge it in another branch. Useful to sync a Git Flow feature branch with develop

update-branch.ps1

# param(
#     [Parameter(Mandatory = $false)] [switch]$help = $help,
#     [Parameter(Mandatory = $true)] [string]$source = "develop",
#     [Parameter(Mandatory = $true)] [string]$target,
#     [Parameter(Mandatory = $false)] [switch]$flow = $false
# )

param(
    [switch]$help = $help,
    [string]$source = "develop",
    [string]$target,
    [switch]$flow = $false
)

function GetFullTarget () {
    if ($flow) {
        return "feature/$target"
    }
    else {
        return $target
    }
}

function PrintHelp () {
	Write-Output "Usage:`n`t update-branch -source develop -target my-feature-branch -flow
	`n`t-source: source branch to pull
	`n`t-target: target brench to merge into
	`n`t-flow use git flow target naming (-target hello will be converted in feature/hello)
	"
}

if ($help) {
    PrintHelp
    return
}

$fullTarget = GetFullTarget

git checkout $source
git pull
git checkout $fullTarget
git merge $source