How to get repository name using multiple checkout - azure-devops

Question

Is there any variable (environment, system, resources) in the pipeline that hold the value for foo_repo and bar_repo ? I am looking for the path (just/code/foo, and just/code/bar) as I don't want to duplicate it in the config.
$(Build.Repository.Name) will return the repo name for self but what about the other repositories ?
resources:
repositories:
- repository: foo_repo
type: git
name: just/code/foo
- repository: bar_repo
type: git
name: just/code/bar
stages:
- checkout: foo_repo
- checkout: bar_repo
- checkout: self

Answer 1

When you check out multiple repositories, some details about the self repository are available as variables. When you use multi-repo triggers, some of those variables have information about the triggering repository instead. Details about all of the repositories consumed by the job are available as a template context object called resources.repositories.
For example, to get the ref of a non-self repository, you could write a pipeline like this:
resources:
repositories:
- repository: other
type: git
name: MyProject/OtherTools
variables:
tools.ref: $[ resources.repositories['other'].ref ]
steps:
- checkout: self
- checkout: other
- bash: |
echo "Tools version: $TOOLS_REF"
https://learn.microsoft.com/en-us/azure/devops/pipelines/repos/multi-repo-checkout?view=azure-devops#repository-details
The repositories context contains:
resources['repositories']['self'] =
{
"alias": "self",
"id": "<repo guid>",
"type": "Git",
"version": "<commit hash>",
"name": "<repo name>",
"project": "<project guid>",
"defaultBranch": "<default ref of repo, like 'refs/heads/main'>",
"ref": "<current pipeline ref, like 'refs/heads/topic'>",
"versionInfo": {
"author": "<author of tip commit>",
"message": "<commit message of tip commit>"
},
"checkoutOptions": {}
}