A script to automate branches closure in mercurial

closebranch.ps1

param (
    [Parameter(Mandatory=$true)][String[]]$branches
 )

# Default catchall branch for closed branches
$closureOldBranchName = "CLOSURE_OLD_BRANCH"

$closedBranches = @()

# Runs a loop on the branches passed as param
foreach($branch in $branches) {
    # Setups comments
    $closeCommitMsg = "Close " + $branch + " branch"

    $escapedBranchName = '"{0}"' -f $branch

    # Checkout into closable branch
    hg up -c $escapedBranchName

    # Check if checkout on the branch was successful
    if($?)
    {
        # Perform the close commit on the branch
        hg commit --close-branch -m $closeCommitMsg

        if($?) {
            $closedBranches += $escapedBranchName
        }
    }
}

# Checkout into the catchall branch for closed ones
hg up -c $closureOldBranchName
            
# Check if checkout on catchall branch has been successful
if($?) {
    foreach($closedBranch in $closedBranches) {
        # Setups comments
        $mergeClosedCommitMsg = "Merge with " + $closedBranch

        # Merge the closed branch into this one
        hg merge --tool internal:local $closedBranch

        # Commit the changes
        hg commit -m $mergeClosedCommitMsg
    }
}

In order to enable script execution the command below should be run once inside Powershell:

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned