foo.fish

# Unsubscribe from all repositories of a given organization,
# except from thoses where you're a contributor

set org myorg
set username johndoe
for repo in (gh api /orgs/$org/repos --paginate | jq -r '.[] | select(.archived == false).name')
  if gh api /repos/$org/$repo/contributors | jq >/dev/null -e --arg username "$username" 'map(.login) | index($username)'
    gh api -XPUT /repos/$org/$repo/subscription -F "subscribed=true" -F "ignored=false" | jq -c
  else
    gh api -XDELETE /repos/$org/$repo/subscription
  end
end