This script will help with updating multiple Azure DevOps repositories at once, useful when there are too many repos to point and click

batch_azure_devops_update_repositories.ps1

# This script will help with updating multiple Azure DevOps repositories at once, useful when there are too many repos to point and click
# For example on line 23, the command updates all repos that match PATTERN to only allow squash merge types.

$org="organization"
$project="Project"
$PAT="XXPATXX"

# First login:
az devops configure --defaults organization=https://dev.azure.com/$org project=$project

# Get a PAT and replace PAT here:
Write-Output $PAT | az devops login --organization "https://dev.azure.com/$org"

# Get all repos
$listOfRepos = az repos list | ConvertFrom-Json

# Replace "PATTERN" with your repo pattern, for example: wealth
$reposIds = $listOfRepos | Where-Object{$_.name -like "PATTERN*"} | %{$_.id}

# Update policy
foreach $(repoId from $reposIds){
  az repos policy merge-strategy create --repository-id $repoId --blocking true --branch master --enabled --allow-no-fast-forward false --allow-rebase false --allow-rebase-merge false --allow-squash true
}