From 59e9105c03e5d396d666ce17ddadb6bec948551b Mon Sep 17 00:00:00 2001
From: Jheison Martinez Bolivar <78370841+JheisonMB@users.noreply.github.com>
Date: Mon, 11 May 2026 20:20:54 -0500
Subject: [PATCH] fix: correct WSL2 OS detection by removing PWD-based Windows
 override (#8869)

Signed-off-by: Jheison Martinez Bolivar <jheison.mb@gmail.com>
---
 download_cli.sh | 35 ++++-------------------------------
 1 file changed, 4 insertions(+), 31 deletions(-)

diff --git a/download_cli.sh b/download_cli.sh
index c34afe8ad2..2d7c0d41f3 100755
--- a/download_cli.sh
+++ b/download_cli.sh
@@ -60,14 +60,8 @@ OUT_FILE="goose"
 if [[ "${WINDIR:-}" ]] || [[ "${windir:-}" ]] || [[ "$OSTYPE" == "msys" ]] || [[ "$OSTYPE" == "cygwin" ]]; then
     # Native Windows environments - use Windows user profile path
     DEFAULT_BIN_DIR="$USERPROFILE/goose"
-elif [[ -f "/proc/version" ]] && grep -q "Microsoft\|WSL" /proc/version 2>/dev/null; then
-    # WSL - use Linux-style path but make sure it exists
-    DEFAULT_BIN_DIR="$HOME/.local/bin"
-elif [[ "$PWD" =~ ^/mnt/[a-zA-Z]/ ]]; then
-    # WSL mount point detection
-    DEFAULT_BIN_DIR="$HOME/.local/bin"
 else
-    # Default for Linux/macOS
+    # Linux, macOS, and WSL all use the same bin directory
     DEFAULT_BIN_DIR="$HOME/.local/bin"
 fi
 
@@ -103,32 +97,11 @@ else
   if [[ "${WINDIR:-}" ]] || [[ "${windir:-}" ]] || [[ "$OSTYPE" == "msys" ]] || [[ "$OSTYPE" == "cygwin" ]]; then
     OS="windows"
   elif [[ -f "/proc/version" ]] && grep -q "Microsoft\|WSL" /proc/version 2>/dev/null; then
-    # WSL detected. Prefer Linux unless there are clear signs we should install the Windows build:
-    # - running on a Windows-mounted path like /mnt/c/...   OR
-    # - Windows executables are available AND we're on a Windows mount
-    if [[ "$PWD" =~ ^/mnt/[a-zA-Z]/ ]]; then
-      OS="windows"
-    else
-      # If powershell/cmd exist, only treat as Windows when in a Windows mount
-      if command -v powershell.exe >/dev/null 2>&1 || command -v cmd.exe >/dev/null 2>&1; then
-        if [[ "$PWD" =~ ^/mnt/[a-zA-Z]/ ]] || [[ -d "/c" || -d "/d" || -d "/e" ]]; then
-          OS="windows"
-        else
-          OS="linux"
-        fi
-      else
-        # No strong Windows interop present — install Linux build inside WSL by default
-        OS="linux"
-      fi
-    fi
-  elif [[ "$PWD" =~ ^/mnt/[a-zA-Z]/ ]]; then
-    # WSL mount point detection (like /mnt/c/) outside of /proc/version check
-    OS="windows"
+    # WSL is a Linux environment regardless of the current working directory.
+    # The PWD (e.g. /mnt/c/) does not change the kernel — always install Linux.
+    OS="linux"
   elif [[ "$OSTYPE" == "darwin"* ]]; then
     OS="darwin"
-  elif command -v powershell.exe >/dev/null 2>&1 || command -v cmd.exe >/dev/null 2>&1; then
-    # Presence of Windows executables (likely a Windows environment)
-    OS="windows"
   elif [[ "$PWD" =~ ^/[a-zA-Z]/ ]] && [[ -d "/c" || -d "/d" || -d "/e" ]]; then
     # Check for Windows-style mount points (like in Git Bash)
     OS="windows"