lance-duckdb-update-lance-dependency

name	lance-duckdb-update-lance-dependency
description	Update lance-duckdb to a specific Lance release or tag. Use when bumping Lance Rust dependencies in the lance-duckdb repository, including Cargo.toml, Cargo.lock, validation, branch creation, commit, push, and PR creation when requested.

lance-duckdb Update Lance Dependency

Scope

Use this skill in the lance-format/lance-duckdb repository when updating Lance Rust dependencies to a specific Lance version or tag.

Inputs can be a version (7.2.0-beta.1), a tag (v7.2.0-beta.1), a tag ref (refs/tags/v7.2.0-beta.1), or latest.

Workflow

1. Confirm the worktree status with git status --short.

2. Resolve the target Lance version:

   • If the input is latest, empty, or omitted, run:

     python3 ci/check_lance_release.py
     

     Parse the JSON output. If needs_update is not true, stop without creating a PR. Otherwise use latest_tag.

   • If the input is explicit, use it directly.

3. Compute update metadata without changing files:

   python3 ci/update_lance_dependency.py "$TAG_OR_VERSION" --metadata-only
   

   Before making changes, check for an existing open PR with the emitted pr_title:

   gh pr list --search "\"$PR_TITLE\" in:title" --state open --limit 1 --json number,url,title
   

   If a matching open PR exists, stop and report it instead of creating a duplicate.

4. Run the deterministic update entrypoint:

   python3 ci/update_lance_dependency.py "$TAG_OR_VERSION"
   

   This updates the direct Lance Rust crate versions in Cargo.toml, removes repository-local Lance [patch.crates-io] entries if present, refreshes Cargo.lock with precise Cargo updates, and prints JSON metadata containing branch_name, commit_message, and pr_title.

5. Run validation:

   cargo fmt --all
   cargo check --manifest-path Cargo.toml
   cargo clippy --manifest-path Cargo.toml --all-targets
   

   If Cargo reports incompatible Arrow/DataFusion requirements, inspect the target Lance release requirements and update the pinned Arrow/DataFusion versions in Cargo.toml, then rerun python3 ci/update_lance_dependency.py "$TAG_OR_VERSION" and the validation commands. Fix real diagnostics and rerun validation until it succeeds.

6. Inspect git status --short and git diff to ensure only the Lance dependency update and required compatibility fixes are present.

7. If the task only asks to prepare local changes, stop here and report the changed files and validation result.

8. If the task asks to publish the update, create a branch using the printed branch_name, stage all relevant files, and commit using the printed commit_message. Do not amend or rewrite existing commits.

9. Push to origin. Before creating the PR, check that the current token has push permission:

   gh api repos/lance-format/lance-duckdb --jq .permissions.push
   

   If the remote branch already exists for the same generated branch name, delete the remote ref with gh api -X DELETE repos/lance-format/lance-duckdb/git/refs/heads/$BRANCH_NAME, then push. Do not force-push.

10. Create a PR targeting main with the printed pr_title. If there is no PR template, keep the body to two or three concise sentences: state the Lance dependency bump, note any required compatibility fixes, and link the triggering Lance tag or release.

11. Read back the remote PR title after creation. If it is not a Conventional Commit title, fix it immediately.

GitHub Actions

This workflow is intentionally manual. When this skill is used from GitHub Actions, TAG, GH_TOKEN, and GITHUB_TOKEN may already be set. Resolve latest first when TAG is empty. Once an explicit tag or version is known, use:

python3 ci/update_lance_dependency.py "$TAG" --github-output "$GITHUB_OUTPUT"

Then use the emitted branch_name, commit_message, and pr_title values for branch, commit, and PR creation.