fix: use version-aware zip extraction on Windows (#563)

src/hooks/comment-checker/downloader.ts

@@ -3,6 +3,7 @@ import { existsSync, mkdirSync, chmodSync, unlinkSync, appendFileSync } from "fs
 import { join } from "path"
 import { homedir, tmpdir } from "os"
 import { createRequire } from "module"
+import { extractZip } from "../../shared"
 
 const DEBUG = process.env.COMMENT_CHECKER_DEBUG === "1"
 const DEBUG_FILE = join(tmpdir(), "comment-checker-debug.log")
@@ -95,29 +96,7 @@ async function extractTarGz(archivePath: string, destDir: string): Promise<void>
   }
 }
 
-/**
- * Extract zip archive using system commands.
- */
-async function extractZip(archivePath: string, destDir: string): Promise<void> {
-  debugLog("Extracting zip:", archivePath, "to", destDir)
-  
-  const proc = process.platform === "win32"
-    ? spawn(["powershell", "-command", `Expand-Archive -Path '${archivePath}' -DestinationPath '${destDir}' -Force`], {
-        stdout: "pipe",
-        stderr: "pipe",
-      })
-    : spawn(["unzip", "-o", archivePath, "-d", destDir], {
-        stdout: "pipe",
-        stderr: "pipe",
-      })
-  
-  const exitCode = await proc.exited
-  
-  if (exitCode !== 0) {
-    const stderr = await new Response(proc.stderr).text()
-    throw new Error(`zip extraction failed (exit ${exitCode}): ${stderr}`)
-  }
-}
+
 
 /**
  * Download the comment-checker binary from GitHub Releases.

src/shared/index.ts

@@ -20,3 +20,4 @@ export * from "./opencode-config-dir"
 export * from "./opencode-version"
 export * from "./permission-compat"
 export * from "./external-plugin-detector"
+export * from "./zip-extractor"

src/shared/zip-extractor.ts

@@ -0,0 +1,83 @@
+import { spawn, spawnSync } from "bun"
+import { release } from "os"
+
+const WINDOWS_BUILD_WITH_TAR = 17134
+
+function getWindowsBuildNumber(): number | null {
+  if (process.platform !== "win32") return null
+  
+  const parts = release().split(".")
+  if (parts.length >= 3) {
+    const build = parseInt(parts[2], 10)
+    if (!isNaN(build)) return build
+  }
+  return null
+}
+
+function isPwshAvailable(): boolean {
+  if (process.platform !== "win32") return false
+  const result = spawnSync(["where", "pwsh"], { stdout: "pipe", stderr: "pipe" })
+  return result.exitCode === 0
+}
+
+function escapePowerShellPath(path: string): string {
+  return path.replace(/'/g, "''")
+}
+
+type WindowsZipExtractor = "tar" | "pwsh" | "powershell"
+
+function getWindowsZipExtractor(): WindowsZipExtractor {
+  const buildNumber = getWindowsBuildNumber()
+  
+  if (buildNumber !== null && buildNumber >= WINDOWS_BUILD_WITH_TAR) {
+    return "tar"
+  }
+  
+  if (isPwshAvailable()) {
+    return "pwsh"
+  }
+  
+  return "powershell"
+}
+
+export async function extractZip(archivePath: string, destDir: string): Promise<void> {
+  let proc
+  
+  if (process.platform === "win32") {
+    const extractor = getWindowsZipExtractor()
+    
+    switch (extractor) {
+      case "tar":
+        proc = spawn(["tar", "-xf", archivePath, "-C", destDir], {
+          stdout: "ignore",
+          stderr: "pipe",
+        })
+        break
+      case "pwsh":
+        proc = spawn(["pwsh", "-Command", `Expand-Archive -Path '${escapePowerShellPath(archivePath)}' -DestinationPath '${escapePowerShellPath(destDir)}' -Force`], {
+          stdout: "ignore",
+          stderr: "pipe",
+        })
+        break
+      case "powershell":
+      default:
+        proc = spawn(["powershell", "-Command", `Expand-Archive -Path '${escapePowerShellPath(archivePath)}' -DestinationPath '${escapePowerShellPath(destDir)}' -Force`], {
+          stdout: "ignore",
+          stderr: "pipe",
+        })
+        break
+    }
+  } else {
+    proc = spawn(["unzip", "-o", archivePath, "-d", destDir], {
+      stdout: "ignore",
+      stderr: "pipe",
+    })
+  }
+  
+  const exitCode = await proc.exited
+  
+  if (exitCode !== 0) {
+    const stderr = await new Response(proc.stderr).text()
+    throw new Error(`zip extraction failed (exit ${exitCode}): ${stderr}`)
+  }
+}

src/tools/ast-grep/downloader.ts

@@ -1,8 +1,8 @@
-import { spawn } from "bun"
 import { existsSync, mkdirSync, chmodSync, unlinkSync } from "fs"
 import { join } from "path"
 import { homedir } from "os"
 import { createRequire } from "module"
+import { extractZip } from "../../shared"
 
 const REPO = "ast-grep/ast-grep"
 
@@ -56,30 +56,7 @@ export function getCachedBinaryPath(): string | null {
   return existsSync(binaryPath) ? binaryPath : null
 }
 
-async function extractZip(archivePath: string, destDir: string): Promise<void> {
-  const proc =
-    process.platform === "win32"
-      ? spawn(
-          [
-            "powershell",
-            "-command",
-            `Expand-Archive -Path '${archivePath}' -DestinationPath '${destDir}' -Force`,
-          ],
-          { stdout: "pipe", stderr: "pipe" }
-        )
-      : spawn(["unzip", "-o", archivePath, "-d", destDir], { stdout: "pipe", stderr: "pipe" })
 
-  const exitCode = await proc.exited
-
-  if (exitCode !== 0) {
-    const stderr = await new Response(proc.stderr).text()
-    const toolHint =
-      process.platform === "win32"
-        ? "Ensure PowerShell is available on your system."
-        : "Please install 'unzip' (e.g., apt install unzip, brew install unzip)."
-    throw new Error(`zip extraction failed (exit ${exitCode}): ${stderr}\n\n${toolHint}`)
-  }
-}
 
 export async function downloadAstGrep(version: string = DEFAULT_VERSION): Promise<string | null> {
   const platformKey = `${process.platform}-${process.arch}`

src/tools/grep/downloader.ts

@@ -1,6 +1,7 @@
 import { existsSync, mkdirSync, chmodSync, unlinkSync, readdirSync } from "node:fs"
 import { join } from "node:path"
 import { spawn } from "bun"
+import { extractZip as extractZipBase } from "../../shared"
 
 export function findFileRecursive(dir: string, filename: string): string | null {
   try {
@@ -74,51 +75,17 @@ async function extractTarGz(archivePath: string, destDir: string): Promise<void>
   }
 }
 
-async function extractZipWindows(archivePath: string, destDir: string): Promise<void> {
-  const proc = spawn(
-    ["powershell", "-Command", `Expand-Archive -Path '${archivePath}' -DestinationPath '${destDir}' -Force`],
-    { stdout: "pipe", stderr: "pipe" }
-  )
-  const exitCode = await proc.exited
-  if (exitCode !== 0) {
-    throw new Error("Failed to extract zip with PowerShell")
-  }
-
-  const foundPath = findFileRecursive(destDir, "rg.exe")
-  if (foundPath) {
-    const destPath = join(destDir, "rg.exe")
-    if (foundPath !== destPath) {
-      const { renameSync } = await import("node:fs")
-      renameSync(foundPath, destPath)
-    }
-  }
-}
-
-async function extractZipUnix(archivePath: string, destDir: string): Promise<void> {
-  const proc = spawn(["unzip", "-o", archivePath, "-d", destDir], {
-    stdout: "pipe",
-    stderr: "pipe",
-  })
-  const exitCode = await proc.exited
-  if (exitCode !== 0) {
-    throw new Error("Failed to extract zip")
-  }
-
-  const foundPath = findFileRecursive(destDir, "rg")
-  if (foundPath) {
-    const destPath = join(destDir, "rg")
-    if (foundPath !== destPath) {
-      const { renameSync } = await import("node:fs")
-      renameSync(foundPath, destPath)
-    }
-  }
-}
-
 async function extractZip(archivePath: string, destDir: string): Promise<void> {
-  if (process.platform === "win32") {
-    await extractZipWindows(archivePath, destDir)
-  } else {
-    await extractZipUnix(archivePath, destDir)
+  await extractZipBase(archivePath, destDir)
+
+  const binaryName = process.platform === "win32" ? "rg.exe" : "rg"
+  const foundPath = findFileRecursive(destDir, binaryName)
+  if (foundPath) {
+    const destPath = join(destDir, binaryName)
+    if (foundPath !== destPath) {
+      const { renameSync } = await import("node:fs")
+      renameSync(foundPath, destPath)
+    }
   }
 }