| #!/usr/bin/env bash |
| set -euo pipefail |
|
|
| BRANCH="${BRANCH:-main}" |
|
|
| retry_cmd() { |
| local attempts="$1" |
| shift |
|
|
| local n=1 |
| until "$@"; do |
| if (( n >= attempts )); then |
| echo "Command failed after ${attempts} attempts: $*" |
| return 1 |
| fi |
| local wait_time=$((2 ** n)) |
| echo "Attempt ${n}/${attempts} failed for: $*" |
| echo "Retrying in ${wait_time}s..." |
| sleep "${wait_time}" |
| n=$((n + 1)) |
| done |
| } |
|
|
| echo "==> Fetching remotes..." |
| retry_cmd 5 git fetch --prune origin |
| retry_cmd 5 git fetch --prune hf |
|
|
| HAS_ORIGIN_BRANCH=0 |
| if git show-ref --verify --quiet "refs/remotes/origin/${BRANCH}"; then |
| HAS_ORIGIN_BRANCH=1 |
| fi |
|
|
| HAS_HF_BRANCH=0 |
| if git show-ref --verify --quiet "refs/remotes/hf/${BRANCH}"; then |
| HAS_HF_BRANCH=1 |
| fi |
|
|
| if (( HAS_ORIGIN_BRANCH == 0 && HAS_HF_BRANCH == 0 )); then |
| echo "Neither origin/${BRANCH} nor hf/${BRANCH} exists. Cannot bootstrap." |
| exit 1 |
| fi |
|
|
| if (( HAS_ORIGIN_BRANCH == 0 && HAS_HF_BRANCH == 1 )); then |
| echo "origin/${BRANCH} missing. Bootstrapping GitHub from hf/${BRANCH}..." |
| retry_cmd 5 git push origin "refs/remotes/hf/${BRANCH}:refs/heads/${BRANCH}" |
| retry_cmd 5 git fetch --prune origin |
| fi |
|
|
| if (( HAS_HF_BRANCH == 0 && HAS_ORIGIN_BRANCH == 1 )); then |
| echo "hf/${BRANCH} missing. Bootstrapping Hugging Face from origin/${BRANCH}..." |
| retry_cmd 5 git push hf "refs/remotes/origin/${BRANCH}:refs/heads/${BRANCH}" |
| retry_cmd 5 git fetch --prune hf |
| fi |
|
|
| echo "==> Preparing working branch..." |
| git checkout -B "${BRANCH}" "origin/${BRANCH}" |
|
|
| ORIGIN_SHA="$(git rev-parse "origin/${BRANCH}")" |
| HF_SHA="$(git rev-parse "hf/${BRANCH}")" |
|
|
| echo "origin/${BRANCH}: ${ORIGIN_SHA}" |
| echo "hf/${BRANCH}: ${HF_SHA}" |
|
|
| if [[ "${ORIGIN_SHA}" != "${HF_SHA}" ]]; then |
| echo "==> Divergence detected. Attempting merge..." |
| set +e |
| git merge --no-ff --no-edit "hf/${BRANCH}" |
| MERGE_RC=$? |
| set -e |
| if (( MERGE_RC != 0 )); then |
| git merge --abort || true |
| echo "Merge conflict detected between origin/${BRANCH} and hf/${BRANCH}." |
| echo "Resolve manually and rerun workflow." |
| exit 2 |
| fi |
| else |
| echo "==> Branches already aligned. Nothing to merge." |
| fi |
|
|
| LOCAL_SHA="$(git rev-parse HEAD)" |
| echo "local HEAD: ${LOCAL_SHA}" |
|
|
| if [[ "${LOCAL_SHA}" != "${ORIGIN_SHA}" ]]; then |
| echo "==> Pushing updates to GitHub..." |
| retry_cmd 5 git push origin "${BRANCH}:${BRANCH}" |
| else |
| echo "==> GitHub already up to date." |
| fi |
|
|
| |
| retry_cmd 5 git fetch --prune hf "${BRANCH}" |
| HF_SHA_NOW="$(git rev-parse "hf/${BRANCH}")" |
|
|
| if [[ "${LOCAL_SHA}" != "${HF_SHA_NOW}" ]]; then |
| echo "==> Pushing updates to Hugging Face..." |
| retry_cmd 5 git push hf "${BRANCH}:${BRANCH}" |
| else |
| echo "==> Hugging Face already up to date." |
| fi |
|
|
| echo "==> Mirror sync completed successfully." |
|
|
