GitHub API -> Delete Runs from Workflows (Actions)

github-actions-delete.bash

#!/usr/bin/env bash

USERNAME="my_user"
REPOSITORY="the_repo"
TOKEN="ghp_github_token permissions: repo, workflow"

WORKFLOW_RUNS=$(
  curl \
    -H "Accept: application/vnd.github.v3+json" \
    --silent \
    -u "${USERNAME}":"${TOKEN}" \
    "https://api.github.com/repos/${USERNAME}/${REPOSITORY}/actions/runs" |
    jq '.total_count'
)
echo "Workflow ran: ${WORKFLOW_RUNS}"

if [[ ${WORKFLOW_RUNS} == "0" || ${WORKFLOW_RUNS} == "null" ]]; then
  exit 0
fi

WORKFLOW_IDS=$(
  curl \
    -H "Accept: application/vnd.github.v3+json" \
    --silent \
    -u "${USERNAME}":"${TOKEN}" \
    "https://api.github.com/repos/${USERNAME}/${REPOSITORY}/actions/runs?per_page=100" |
    jq '.workflow_runs[].id'
)
WORKFLOWS_FOUND=$(echo "${WORKFLOW_IDS[@]}" | wc -w)
echo "Number of workflow ID's found: ${WORKFLOWS_FOUND}"

if [[ ${WORKFLOWS_FOUND} == "0" ]]; then
  exit 0
fi
echo "Delete ID's:"
while IFS= read -r ID; do
  echo "  ${ID}"
  curl \
    -H "Accept: application/vnd.github.v3+json" \
    -X DELETE \
    --silent \
    -u "${USERNAME}":"${TOKEN}" \
    "https://api.github.com/repos/${USERNAME}/${REPOSITORY}/actions/runs/${ID}"
done <<<"${WORKFLOW_IDS[@]}"