gh-downloads

#!/usr/bin/env bash
set -euo pipefail

if (( $# < 2 )); then
  echo "usage: gh-downloads <org> <repo> [<tag>]" >&2
  exit 1
fi

owner=${1:-} repo=${2:-} tag=${3:-}

# get results for a single release tag
if [[ -n "${tag}" ]]; then
  query='
  query($name: String!, $owner: String!, $tag: String!) {
    repository(owner: $owner, name: $name) {
      release(tagName: $tag) {
        name
        releaseAssets(first: 30) {
          edges {
            node {
              name
              downloadCount
            }
          }
        }
      }
    }
  }
  '

  jq_filter='.data.repository.release.releaseAssets.edges | map(.node)'

# get results for last 5 releases
else
  query='
  query($name: String!, $owner: String!) {
    repository(owner: $owner, name: $name) {
      nameWithOwner
      releases(last: 5) {
        edges { node {
            name
            releaseAssets(first: 30) {
              edges {
                node {
                  name
                  downloadCount
                }
              }
            }
          }
        }
      }
    }
  }'

  jq_filter='.data.repository.releases.edges | .[].node | {
      (.name): [
        .releaseAssets.edges | .[].node
      ]
    }
  '
fi

gh api graphql \
  --field "owner=${owner}" \
  --field "name=${repo}" \
  --field "tag=${tag}" \
  --raw-field "query=${query}" \
  --jq "${jq_filter}"

Example output

$ gh-downloads helm helm | jq
{
  "Helm 3.5.1": [
    {
      "downloadCount": 73,
      "name": "helm-v3.5.1-darwin-amd64.tar.gz.asc"
    },
    {
      "downloadCount": 18,
      "name": "helm-v3.5.1-darwin-amd64.tar.gz.sha256.asc"
    },
    {
      "downloadCount": 22,
      "name": "helm-v3.5.1-darwin-amd64.tar.gz.sha256sum.asc"
    },
    {
      "downloadCount": 52,
      "name": "helm-v3.5.1-linux-386.tar.gz.asc"
    },
    {
      "downloadCount": 20,
      "name": "helm-v3.5.1-linux-386.tar.gz.sha256.asc"
    },
    ...
  ]
  ...
}