opencode-sql-lsp-server 0.1.7

SQL Language Server for OpenCode with Trino/StarRocks dialect support

opencode-sql-lsp-server

SQL LSP server (stdio) intended for OpenCode, with dialect-aware parsing/formatting.

Install

From PyPI (recommended)

pipx install opencode-sql-lsp-server

From source

Recommended: pipx (or a venv)

pipx install -e .

If you don't have pipx, use a virtualenv or uv tool install.

Or pip:

python3 -m pip install -e .

OpenCode config

opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "lsp": {
    "opencode-sql": {
      "command": ["opencode-sql-lsp", "--stdio"],
      "extensions": [".sql"]
    }
  }
}

VS Code wrapper extension

This repository now also carries a minimal VS Code wrapper extension under:

extensions/vscode-opencode-sql-lsp-wrapper/

The wrapper is a thin frontend only. It launches the existing Python server with:

opencode-sql-lsp --stdio

Build and package the wrapper locally with:

cd extensions/vscode-opencode-sql-lsp-wrapper
npm install
npm run verify

If opencode-sql-lsp is not on PATH, configure opencodeSql.serverPath in VS Code settings.

Dialect config

Create .opencode/sql-lsp.json in your project:

{
  "defaultDialect": "starrocks",
  "excludedRules": ["LT05", "ST06"],
  "overrides": {
    "trino/**/*.sql": "trino"
  }
}

Dialect keys are sqlfluff dialect labels, e.g.:

• trino
• starrocks

Notes

• Diagnostics and formatting are powered by sqlfluff.
• Dialect keys (sqlfluff): trino, starrocks.
• By default, style-only sqlfluff rules LT05 (long lines) and ST06 (select target ordering) are excluded to avoid noisy diagnostics for practical StarRocks queries. Override with .opencode/sql-lsp.json if you want a different policy.
• The server also provides lightweight SQL keyword completion, hover help, code actions, and document/workspace symbols for agent-driven editing.
• When defaultDialect resolves to starrocks, completion and hover include StarRocks-oriented phrases such as CREATE MATERIALIZED VIEW, CREATE ROUTINE LOAD, CREATE CATALOG, INSERT OVERWRITE, PARTITION BY, DISTRIBUTED BY, UNNEST, and JSON_EACH.
• Document/workspace symbols recognize named StarRocks entities like materialized views, routine load jobs, catalogs, and common DDL statements, which makes multi-file agent navigation less blind than line-only statement symbols.
• Formatting and code-action failures degrade safely to empty results and are reported through the server error channel.

Optional performance controls

You can tune large-file lint skipping per workspace:

{
  "defaultDialect": "starrocks",
  "maxLintLines": 5000,
  "maxLintBytes": 200000
}

When a document exceeds either limit, linting is skipped and the server publishes a warning diagnostic instead.

StarRocks-focused coverage

The server is still intentionally lightweight, but it now covers more of the StarRocks workflow surface that matters for agent-driven editing:

• lint/format delegation through sqlfluff with StarRocks as the degraded default dialect
• false-positive mitigation for LATERAL UNNEST(...) AS alias(col) and LATERAL JSON_EACH(...) AS alias(k, v) patterns
• StarRocks-aware completion/hover entries for materialized views, routine load, catalogs, partitioning/distribution clauses, and table functions
• named document/workspace symbols for CREATE MATERIALIZED VIEW, CREATE ROUTINE LOAD, CREATE CATALOG, CREATE/ALTER/DROP TABLE, and related statements

This is not a full StarRocks parser or semantic engine. It is a practical LSP layer tuned to be useful for SQL authoring agents without pretending to cover the entire StarRocks product surface.

Verify dialects

sqlfluff dialects

Contributor workflow

Install the editable package with dev dependencies:

python3 -m pip install -e ".[dev]"

Run the local verification gates before opening a PR:

bash scripts/verify_fast.sh
bash scripts/verify_full.sh

Verification ladder

• Fast — default loop for small code changes:
  • bash scripts/verify_fast.sh
• Targeted — when only one area changed:
  • Config/cache work: python3 -m pytest tests/test_config.py tests/test_workspace_config.py -q
  • Server behavior work: python3 -m pytest tests/test_server_behaviors.py tests/test_lsp_helpers.py -q
  • Diagnostics scheduling work: python3 -m pytest tests/test_server_behaviors.py tests/test_diagnostics_scheduler.py -q
  • sqlfluff adapter work: python3 -m pytest tests/test_sqlfluff_adapter.py -q
  • Docs/workflow consistency: python3 -m pytest tests/test_docs_consistency.py -q
  • Smoke-only: python3 -m pytest -m smoke -q
• Full — before handoff/PR:
  • bash scripts/verify_full.sh
• VS Code wrapper — when changing extensions/vscode-opencode-sql-lsp-wrapper/**:
  • bash scripts/verify_vscode_wrapper.sh

Marker-driven verification lanes

• @pytest.mark.config
  • Owns: tests/test_config.py, tests/test_workspace_config.py
  • Use when changing config.py or workspace_config.py
• @pytest.mark.server
  • Owns: tests/test_server_behaviors.py, tests/test_diagnostics_scheduler.py
  • Use when changing server.py or diagnostics scheduling behavior
• @pytest.mark.lsp_helpers
  • Owns: tests/test_lsp_helpers.py
  • Use when changing lsp_utils.py or symbol_provider.py
• @pytest.mark.sqlfluff
  • Owns: tests/test_sqlfluff_adapter.py
  • Use when changing sqlfluff_adapter.py
• @pytest.mark.docs
  • Owns: tests/test_docs_consistency.py
  • Use when changing README.md, src/opencode_sql_lsp_server/AGENTS.md, verification scripts, or .github/workflows/ci.yml
• @pytest.mark.smoke
  • Owns: tests/test_smoke_stdio.py
  • Use before handoff when transport or end-to-end behavior may be affected

Multi-agent handoff guide

• Handler changes in src/opencode_sql_lsp_server/server.py
  • Also inspect: src/opencode_sql_lsp_server/lsp_utils.py, src/opencode_sql_lsp_server/symbol_provider.py, src/opencode_sql_lsp_server/diagnostics_scheduler.py
  • Do not change: CLI transport contract in cli.py
  • Verify: python3 -m pytest tests/test_server_behaviors.py tests/test_lsp_helpers.py tests/test_diagnostics_scheduler.py -q
• Dialect/config changes in src/opencode_sql_lsp_server/config.py or src/opencode_sql_lsp_server/workspace_config.py
  • Also inspect: workspace-root precedence and cached config fallback behavior
  • Do not change: default degraded fallback to starrocks
  • Verify: python3 -m pytest tests/test_config.py tests/test_workspace_config.py -q
• sqlfluff integration changes in src/opencode_sql_lsp_server/sqlfluff_adapter.py
  • Do not import sqlfluff directly into server.py
  • Verify: python3 -m pytest tests/test_sqlfluff_adapter.py tests/test_server_behaviors.py -q
• Diagnostics scheduling changes in src/opencode_sql_lsp_server/diagnostics_scheduler.py
  • Also inspect: cancellation/version behavior in src/opencode_sql_lsp_server/server.py
  • Do not change: debounce semantics for didOpen/didChange/didSave
  • Verify: python3 -m pytest tests/test_server_behaviors.py tests/test_diagnostics_scheduler.py -q
• Release/build workflow changes in scripts/ or .github/workflows/
  • Verify: python3 -m pytest tests/test_docs_consistency.py -q && bash scripts/build_dist.sh
• VS Code wrapper changes in extensions/vscode-opencode-sql-lsp-wrapper/
  • Do not change: pyproject.toml packaging boundaries or the opencode-sql-lsp --stdio server contract
  • Verify: bash scripts/verify_vscode_wrapper.sh && bash scripts/verify_fast.sh

Docs-only changes now take a lighter CI path: .github/workflows/ci.yml always runs quick-validate, but the full matrix job only runs when code-affecting files change. Docs-only changes still run python -m pytest tests/test_docs_consistency.py -q in CI.

The GitHub Actions workflow in .github/workflows/ci.yml runs the same checks on Python 3.10, 3.11, and 3.12.

Release workflow

Build and validate the distribution:

bash scripts/build_dist.sh

Upload to PyPI with a token supplied via environment variable:

export TWINE_USERNAME=__token__
export TWINE_PASSWORD=pypi-***
bash scripts/publish_pypi.sh

If TWINE_PASSWORD is unset and the script is run in an interactive terminal, it will prompt for the token. In CI or other non-interactive environments, the token must be provided via environment variables.