refactor: migrate src/shell/shell.ts from Bun.file() to statSync (#14134)

packages/opencode/src/shell/shell.ts

@@ -1,5 +1,6 @@
 import { Flag } from "@/flag/flag"
 import { lazy } from "@/util/lazy"
+import { Filesystem } from "@/util/filesystem"
 import path from "path"
 import { spawn, type ChildProcess } from "child_process"
 
@@ -43,7 +44,7 @@ export namespace Shell {
         // git.exe is typically at: C:\Program Files\Git\cmd\git.exe
         // bash.exe is at: C:\Program Files\Git\bin\bash.exe
         const bash = path.join(git, "..", "..", "bin", "bash.exe")
-        if (Bun.file(bash).size) return bash
+        if (Filesystem.stat(bash)?.size) return bash
       }
       return process.env.COMSPEC || "cmd.exe"
     }

packages/opencode/src/tool/glob.ts

@@ -1,6 +1,5 @@
 import z from "zod"
 import path from "path"
-import { stat } from "fs/promises"
 import { Tool } from "./tool"
 import DESCRIPTION from "./glob.txt"
 import { Ripgrep } from "../file/ripgrep"
@@ -46,7 +45,8 @@ export const GlobTool = Tool.define("glob", {
         break
       }
       const full = path.resolve(search, file)
-      const stats = await stat(full)
+      const stats = await Bun.file(full)
+        .stat()
         .then((x) => x.mtime.getTime())
         .catch(() => 0)
       files.push({

packages/opencode/src/tool/grep.ts

@@ -1,5 +1,4 @@
 import z from "zod"
-import { stat } from "fs/promises"
 import { Tool } from "./tool"
 import { Ripgrep } from "../file/ripgrep"
 
@@ -84,7 +83,8 @@ export const GrepTool = Tool.define("grep", {
       const lineNum = parseInt(lineNumStr, 10)
       const lineText = lineTextParts.join("|")
 
-      const stats = await stat(filePath).catch(() => null)
+      const file = Bun.file(filePath)
+      const stats = await file.stat().catch(() => null)
       if (!stats) continue
 
       matches.push({

packages/opencode/src/tool/lsp.ts

@@ -6,7 +6,6 @@ import DESCRIPTION from "./lsp.txt"
 import { Instance } from "../project/instance"
 import { pathToFileURL } from "url"
 import { assertExternalDirectory } from "./external-directory"
-import { Filesystem } from "../util/filesystem"
 
 const operations = [
   "goToDefinition",
@@ -48,7 +47,7 @@ export const LspTool = Tool.define("lsp", {
     const relPath = path.relative(Instance.worktree, file)
     const title = `${args.operation} ${relPath}:${args.line}:${args.character}`
 
-    const exists = await Filesystem.exists(file)
+    const exists = await Bun.file(file).exists()
     if (!exists) {
       throw new Error(`File not found: ${file}`)
     }

packages/opencode/src/tool/truncation.ts

@@ -5,7 +5,6 @@ import { Identifier } from "../id/id"
 import { PermissionNext } from "../permission/next"
 import type { Agent } from "../agent/agent"
 import { Scheduler } from "../scheduler"
-import { Filesystem } from "../util/filesystem"
 
 export namespace Truncate {
   export const MAX_LINES = 2000
@@ -92,7 +91,7 @@ export namespace Truncate {
 
     const id = Identifier.ascending("tool")
     const filepath = path.join(DIR, id)
-    await Filesystem.write(filepath, text)
+    await Bun.write(Bun.file(filepath), text)
 
     const hint = hasTaskTool(agent)
       ? `The tool call succeeded but the output was truncated. Full output saved to: ${filepath}\nUse the Task tool to have explore agent process this file with Grep and Read (with offset/limit). Do NOT read the full file yourself - delegate to save context.`