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feat(format): add formatters for Lua, Swift, Scala, Typst, and C# #29257

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d4885ae
feat(format): add formatters for Lua, Swift, Scala, Typst, and C#
amirlankalm May 25, 2026
e052df6
docs(format): add stylua, swiftformat, scalafmt, typst, csharpier to …
amirlankalm May 25, 2026
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51 changes: 51 additions & 0 deletions packages/opencode/src/format/formatter.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -402,3 +402,54 @@ export const dfmt: Info = {
return [match, "-i", "$FILE"]
},
}

export const stylua: Info = {
name: "stylua",
extensions: [".lua"],
async enabled() {
const match = which("stylua")
if (!match) return false
return [match, "$FILE"]
},
}

export const swiftformat: Info = {
name: "swiftformat",
extensions: [".swift"],
async enabled() {
const match = which("swiftformat")
if (!match) return false
return [match, "$FILE"]
},
}

export const scalafmt: Info = {
name: "scalafmt",
extensions: [".scala"],
async enabled(context) {
if (!which("scalafmt")) return false
const items = await Filesystem.findUp(".scalafmt.conf", context.directory, context.worktree)
if (items.length > 0) return ["scalafmt", "$FILE"]
return false
},
}

export const typstfmt: Info = {
name: "typst",
extensions: [".typ", ".typc"],
async enabled() {
const match = which("typst")
if (!match) return false
return [match, "fmt", "$FILE"]
},
}

export const csharpier: Info = {
name: "csharpier",
extensions: [".cs"],
async enabled() {
const match = which("dotnet-csharpier")
if (!match) return false
return [match, "$FILE"]
},
}
5 changes: 5 additions & 0 deletions packages/web/src/content/docs/formatters.mdx
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Expand Up @@ -18,6 +18,7 @@ OpenCode comes with several built-in formatters for popular languages and framew
| cargofmt | .rs | `cargo fmt` command available |
| clang-format | .c, .cpp, .h, .hpp, .ino, and [more](https://clang.llvm.org/docs/ClangFormat.html) | `.clang-format` config file |
| cljfmt | .clj, .cljs, .cljc, .edn | `cljfmt` command available |
| csharpier | .cs | `dotnet-csharpier` command available |
| dart | .dart | `dart` command available |
| dfmt | .d | `dfmt` command available |
| gleam | .gleam | `gleam` command available |
Expand All @@ -34,9 +35,13 @@ OpenCode comes with several built-in formatters for popular languages and framew
| rubocop | .rb, .rake, .gemspec, .ru | `rubocop` command available |
| ruff | .py, .pyi | `ruff` command available with config |
| rustfmt | .rs | `rustfmt` command available |
| scalafmt | .scala | `scalafmt` command available and `.scalafmt.conf` config file |
| shfmt | .sh, .bash | `shfmt` command available |
| standardrb | .rb, .rake, .gemspec, .ru | `standardrb` command available |
| stylua | .lua | `stylua` command available |
| swiftformat | .swift | `swiftformat` command available |
| terraform | .tf, .tfvars | `terraform` command available |
| typst | .typ, .typc | `typst` command available |
| uv | .py, .pyi | `uv` command available |
| zig | .zig, .zon | `zig` command available |

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