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feat: add yaml language server support#1345
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Pull Request Overview
This PR adds YAML language server support to opencode, enabling syntax highlighting, error detection, and schema validation for .yml and .yaml files. The implementation uses yaml-language-server via Bun's package runner for automatic installation.
- Adds a new YAML language server configuration to the LSP server definitions
- Configures support for both
.ymland.yamlfile extensions - Uses Bun's package runner to automatically install and run yaml-language-server
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Consider adding error handling for the case where yaml-language-server is not available, similar to how the TypeScript language server checks for tsserver existence before spawning the process.
Suggested change
| const proc = spawn(BunProc.which(), ["x", "yaml-language-server", "--stdio"], { | |
| const bin = Bun.which("yaml-language-server", { | |
| PATH: process.env["PATH"] + ":" + Global.Path.bin, | |
| }) | |
| if (!bin) { | |
| log.error("yaml-language-server is not available. Please install it and try again.") | |
| return | |
| } | |
| const proc = spawn(bin, ["--stdio"], { |
Address code review feedback by: - Check if yaml-language-server binary exists before spawning - Add informative error message when binary is not found - Follow same pattern as other language servers in codebase - Use direct binary path instead of 'bun x' for better reliability 🤖 Generated with [opencode](https://opencode.ai) Co-Authored-By: opencode <noreply@opencode.ai>
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May 12, 2026
* fix(i18n): restore missing page translations * fix(i18n): correct settings locale labels * fix(dev): avoid reusing another checkout's Vite server --------- Co-authored-by: src-opn <src-opn@users.noreply.github.com>
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Summary
.ymland.yamlfilesTesting
service=lsp.client serverID=yaml starting clientandinitializedFixes