My objective is to write a script that promotes a "stage" application in our Heroku pipeline to production, but only if there are any changes to promote.
I can promote without issues by using:
// POST /pipeline-promotions
{
"pipeline": {
"id": "<pipeline-id>"
},
"source": {
"app": {
"id": "<stage-app-id>"
}
},
"targets": [
{
"app": {
"id": "<production-id>"
}
}
]
}
My issues is that if I execute this, without any changes are present, the release actions are still started on the production application.
In other words, how can I determine if any changes are available for promotion - just like heroku does in their GUI?
