ECC/.opencode/tools/format-code.ts

67 lines
2.2 KiB
TypeScript

/**
* ECC Custom Tool: Format Code
*
* Language-aware code formatter that auto-detects the project's formatter.
* Supports: Biome/Prettier (JS/TS), Black (Python), gofmt (Go), rustfmt (Rust)
*/
import { tool } from "@opencode-ai/plugin"
import { z } from "zod"
export default tool({
name: "format-code",
description: "Format a file using the project's configured formatter. Auto-detects Biome, Prettier, Black, gofmt, or rustfmt.",
parameters: z.object({
filePath: z.string().describe("Path to the file to format"),
formatter: z.string().optional().describe("Override formatter: biome, prettier, black, gofmt, rustfmt (default: auto-detect)"),
}),
execute: async ({ filePath, formatter }, { $ }) => {
const ext = filePath.split(".").pop()?.toLowerCase() || ""
// Auto-detect formatter based on file extension and config files
let detected = formatter
if (!detected) {
if (["ts", "tsx", "js", "jsx", "json", "css", "scss"].includes(ext)) {
// Check for Biome first, then Prettier
try {
await $`test -f biome.json || test -f biome.jsonc`
detected = "biome"
} catch {
detected = "prettier"
}
} else if (["py", "pyi"].includes(ext)) {
detected = "black"
} else if (ext === "go") {
detected = "gofmt"
} else if (ext === "rs") {
detected = "rustfmt"
}
}
if (!detected) {
return { formatted: false, message: `No formatter detected for .${ext} files` }
}
const commands: Record<string, string> = {
biome: `npx @biomejs/biome format --write ${filePath}`,
prettier: `npx prettier --write ${filePath}`,
black: `black ${filePath}`,
gofmt: `gofmt -w ${filePath}`,
rustfmt: `rustfmt ${filePath}`,
}
const cmd = commands[detected]
if (!cmd) {
return { formatted: false, message: `Unknown formatter: ${detected}` }
}
try {
const result = await $`${cmd}`.text()
return { formatted: true, formatter: detected, output: result }
} catch (error: unknown) {
const err = error as { stderr?: string }
return { formatted: false, formatter: detected, error: err.stderr || "Format failed" }
}
},
})