refactor(opencode): simplify tui theme file reads

packages/opencode/src/cli/cmd/tui/context/theme.tsx

@@ -1,5 +1,6 @@
 import { CliRenderEvents, SyntaxStyle, RGBA, type TerminalColors } from "@opentui/core"
 import path from "path"
+import { existsSync } from "fs"
 import { createEffect, createMemo, onCleanup, onMount } from "solid-js"
 import { createSimpleContext } from "./helper"
 import { Glob } from "@opencode-ai/shared/util/glob"
@@ -40,7 +41,6 @@ import { useKV } from "./kv"
 import { useRenderer } from "@opentui/solid"
 import { createStore, produce } from "solid-js/store"
 import { Global } from "@/global"
-import { Filesystem } from "@/util/filesystem"
 import { useTuiConfig } from "./tui-config"
 import { isRecord } from "@/util/record"
 import type { TuiThemeCurrent } from "@opencode-ai/plugin/tui"
@@ -477,15 +477,19 @@ export const { use: useTheme, provider: ThemeProvider } = createSimpleContext({
 })
 
 async function getCustomThemes() {
-  const directories = [
-    Global.Path.config,
-    ...(await Array.fromAsync(
-      Filesystem.up({
-        targets: [".opencode"],
-        start: process.cwd(),
-      }),
-    )),
-  ]
+  const ups = (start: string) => {
+    const out: string[] = []
+    let dir = start
+    while (true) {
+      const next = path.join(dir, ".opencode")
+      if (existsSync(next)) out.push(next)
+      const parent = path.dirname(dir)
+      if (parent === dir) return out
+      dir = parent
+    }
+  }
+
+  const directories = [Global.Path.config, ...ups(process.cwd())]
 
   const result: Record<string, ThemeJson> = {}
   for (const dir of directories) {
@@ -496,7 +500,7 @@ async function getCustomThemes() {
       symlink: true,
     })) {
       const name = path.basename(item, ".json")
-      result[name] = await Filesystem.readJson(item)
+      result[name] = (await Bun.file(item).json()) as ThemeJson
     }
   }
   return result

packages/opencode/src/config/paths.ts

@@ -2,30 +2,74 @@ import path from "path"
 import os from "os"
 import z from "zod"
 import { type ParseError as JsoncParseError, parse as parseJsonc, printParseErrorCode } from "jsonc-parser"
+import { Effect } from "effect"
+import { AppFileSystem } from "@opencode-ai/shared/filesystem"
 import { NamedError } from "@opencode-ai/shared/util/error"
-import { Filesystem } from "@/util/filesystem"
 import { Flag } from "@/flag/flag"
 import { Global } from "@/global"
+import { AppRuntime } from "@/effect/app-runtime"
+
+async function withFs<A>(fn: (fs: AppFileSystem.Interface) => Effect.Effect<A, AppFileSystem.Error>) {
+  return AppRuntime.runPromise(
+    Effect.gen(function* () {
+      const fs = yield* AppFileSystem.Service
+      return yield* fn(fs)
+    }),
+  )
+}
+
+function missing(err: unknown) {
+  if (typeof err !== "object" || err === null) return false
+  if ("code" in err && err.code === "ENOENT") return true
+  return (
+    "reason" in err &&
+    typeof err.reason === "object" &&
+    err.reason !== null &&
+    "_tag" in err.reason &&
+    err.reason._tag === "NotFound"
+  )
+}
 
 export namespace ConfigPaths {
   export async function projectFiles(name: string, directory: string, worktree: string) {
-    return Filesystem.findUp([`${name}.json`, `${name}.jsonc`], directory, worktree, { rootFirst: true })
+    return withFs(
+      Effect.fn("ConfigPaths.projectFiles")(function* (fs) {
+        const dirs = [directory]
+        let dir = directory
+        while (true) {
+          if (worktree === dir) break
+          const parent = path.dirname(dir)
+          if (parent === dir) break
+          dirs.push(parent)
+          dir = parent
+        }
+
+        const out: string[] = []
+        for (const dir of dirs.toReversed()) {
+          for (const target of [`${name}.json`, `${name}.jsonc`]) {
+            const file = path.join(dir, target)
+            if (yield* fs.existsSafe(file)) out.push(file)
+          }
+        }
+        return out
+      }),
+    )
   }
 
   export async function directories(directory: string, worktree: string) {
     return [
       Global.Path.config,
       ...(!Flag.OPENCODE_DISABLE_PROJECT_CONFIG
-        ? await Array.fromAsync(
-            Filesystem.up({
+        ? await withFs((fs) =>
+            fs.up({
               targets: [".opencode"],
               start: directory,
               stop: worktree,
             }),
           )
         : []),
-      ...(await Array.fromAsync(
-        Filesystem.up({
+      ...(await withFs((fs) =>
+        fs.up({
           targets: [".opencode"],
           start: Global.Path.home,
           stop: Global.Path.home,
@@ -58,8 +102,8 @@ export namespace ConfigPaths {
 
   /** Read a config file, returning undefined for missing files and throwing JsonError for other failures. */
   export async function readFile(filepath: string) {
-    return Filesystem.readText(filepath).catch((err: NodeJS.ErrnoException) => {
-      if (err.code === "ENOENT") return
+    return withFs((fs) => fs.readFileString(filepath)).catch((err: unknown) => {
+      if (missing(err)) return
       throw new JsonError({ path: filepath }, { cause: err })
     })
   }
@@ -108,11 +152,11 @@ export namespace ConfigPaths {
 
       const resolvedPath = path.isAbsolute(filePath) ? filePath : path.resolve(configDir, filePath)
       const fileContent = (
-        await Filesystem.readText(resolvedPath).catch((error: NodeJS.ErrnoException) => {
+        await withFs((fs) => fs.readFileString(resolvedPath)).catch((error: unknown) => {
           if (missing === "empty") return ""
 
           const errMsg = `bad file reference: "${token}"`
-          if (error.code === "ENOENT") {
+          if (missing(error)) {
             throw new InvalidError(
               {
                 path: configSource,

packages/opencode/src/format/formatter.ts

@@ -1,10 +1,33 @@
+import { Effect } from "effect"
+import { AppFileSystem } from "@opencode-ai/shared/filesystem"
 import { Npm } from "../npm"
 import { Instance } from "../project/instance"
-import { Filesystem } from "../util/filesystem"
 import { Process } from "../util/process"
 import { which } from "../util/which"
+import { AppRuntime } from "@/effect/app-runtime"
 import { Flag } from "@/flag/flag"
 
+async function withFs<A>(fn: (fs: AppFileSystem.Interface) => Effect.Effect<A, AppFileSystem.Error>) {
+  return AppRuntime.runPromise(
+    Effect.gen(function* () {
+      const fs = yield* AppFileSystem.Service
+      return yield* fn(fs)
+    }),
+  )
+}
+
+async function find(target: string) {
+  return withFs((fs) => fs.findUp(target, Instance.directory, Instance.worktree))
+}
+
+async function readJson<T>(file: string) {
+  return withFs((fs) => fs.readJson(file).pipe(Effect.map((json) => json as T)))
+}
+
+async function readText(file: string) {
+  return withFs((fs) => fs.readFileString(file))
+}
+
 export interface Info {
   name: string
   environment?: Record<string, string>
@@ -66,9 +89,9 @@ export const prettier: Info = {
     ".gql",
   ],
   async enabled() {
-    const items = await Filesystem.findUp("package.json", Instance.directory, Instance.worktree)
+    const items = await find("package.json")
     for (const item of items) {
-      const json = await Filesystem.readJson<{
+      const json = await readJson<{
         dependencies?: Record<string, string>
         devDependencies?: Record<string, string>
       }>(item)
@@ -89,9 +112,9 @@ export const oxfmt: Info = {
   extensions: [".js", ".jsx", ".mjs", ".cjs", ".ts", ".tsx", ".mts", ".cts"],
   async enabled() {
     if (!Flag.OPENCODE_EXPERIMENTAL_OXFMT) return false
-    const items = await Filesystem.findUp("package.json", Instance.directory, Instance.worktree)
+    const items = await find("package.json")
     for (const item of items) {
-      const json = await Filesystem.readJson<{
+      const json = await readJson<{
         dependencies?: Record<string, string>
         devDependencies?: Record<string, string>
       }>(item)
@@ -140,7 +163,7 @@ export const biome: Info = {
   async enabled() {
     const configs = ["biome.json", "biome.jsonc"]
     for (const config of configs) {
-      const found = await Filesystem.findUp(config, Instance.directory, Instance.worktree)
+      const found = await find(config)
       if (found.length > 0) {
         const bin = await Npm.which("@biomejs/biome")
         if (bin) return [bin, "format", "--write", "$FILE"]
@@ -164,7 +187,7 @@ export const clang: Info = {
   name: "clang-format",
   extensions: [".c", ".cc", ".cpp", ".cxx", ".c++", ".h", ".hh", ".hpp", ".hxx", ".h++", ".ino", ".C", ".H"],
   async enabled() {
-    const items = await Filesystem.findUp(".clang-format", Instance.directory, Instance.worktree)
+    const items = await find(".clang-format")
     if (items.length > 0) {
       const match = which("clang-format")
       if (match) return [match, "-i", "$FILE"]
@@ -190,10 +213,10 @@ export const ruff: Info = {
     if (!which("ruff")) return false
     const configs = ["pyproject.toml", "ruff.toml", ".ruff.toml"]
     for (const config of configs) {
-      const found = await Filesystem.findUp(config, Instance.directory, Instance.worktree)
+      const found = await find(config)
       if (found.length > 0) {
         if (config === "pyproject.toml") {
-          const content = await Filesystem.readText(found[0])
+          const content = await readText(found[0])
           if (content.includes("[tool.ruff]")) return ["ruff", "format", "$FILE"]
         } else {
           return ["ruff", "format", "$FILE"]
@@ -202,9 +225,9 @@ export const ruff: Info = {
     }
     const deps = ["requirements.txt", "pyproject.toml", "Pipfile"]
     for (const dep of deps) {
-      const found = await Filesystem.findUp(dep, Instance.directory, Instance.worktree)
+      const found = await find(dep)
       if (found.length > 0) {
-        const content = await Filesystem.readText(found[0])
+        const content = await readText(found[0])
         if (content.includes("ruff")) return ["ruff", "format", "$FILE"]
       }
     }
@@ -288,7 +311,7 @@ export const ocamlformat: Info = {
   extensions: [".ml", ".mli"],
   async enabled() {
     if (!which("ocamlformat")) return false
-    const items = await Filesystem.findUp(".ocamlformat", Instance.directory, Instance.worktree)
+    const items = await find(".ocamlformat")
     if (items.length > 0) return ["ocamlformat", "-i", "$FILE"]
     return false
   },
@@ -358,9 +381,9 @@ export const pint: Info = {
   name: "pint",
   extensions: [".php"],
   async enabled() {
-    const items = await Filesystem.findUp("composer.json", Instance.directory, Instance.worktree)
+    const items = await find("composer.json")
     for (const item of items) {
-      const json = await Filesystem.readJson<{
+      const json = await readJson<{
         require?: Record<string, string>
         "require-dev"?: Record<string, string>
       }>(item)