From c2c3ce7b0bb2ede980b47b0882e2e37c67696b08 Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 11:31:36 -0600
Subject: [PATCH 01/12] ci(fix): mock .exe files for Windows?

---
 .../hoisted/node_modules/turbo-windows-64/bin/turbo.exe         | 2 ++
 .../hoisted/node_modules/turbo-windows-arm64/bin/turbo.exe      | 2 ++
 .../node_modules/turbo-windows-64/bin/turbo.exe                 | 2 ++
 .../node_modules/turbo-windows-arm64/bin/turbo.exe              | 2 ++
 .../turbo/node_modules/turbo-windows-64/bin/turbo.exe           | 2 ++
 .../turbo/node_modules/turbo-windows-arm64/bin/turbo.exe        | 2 ++
 .../find_turbo/self/node_modules/turbo-windows-64/bin/turbo.exe | 2 ++
 .../self/node_modules/turbo-windows-arm64/bin/turbo.exe         | 2 ++
 .../node_modules/turbo-windows-64/bin/turbo.exe                 | 2 ++
 .../node_modules/turbo-windows-arm64/bin/turbo.exe              | 2 ++
 .../node_modules/turbo-windows-64/bin/turbo.exe                 | 2 ++
 .../node_modules/turbo-windows-arm64/bin/turbo.exe              | 2 ++
 .../node_modules/turbo-windows-64/bin/turbo.exe                 | 2 ++
 .../node_modules/turbo-windows-arm64/bin/turbo.exe              | 2 ++
 14 files changed, 28 insertions(+)
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-arm64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-64@1.0.0/node_modules/turbo-windows-64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-arm64@1.0.0/node_modules/turbo-windows-arm64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-arm64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-arm64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
 create mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe

diff --git a/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-arm64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-arm64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-64@1.0.0/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-64@1.0.0/node_modules/turbo-windows-64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-64@1.0.0/node_modules/turbo-windows-64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-arm64@1.0.0/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-arm64@1.0.0/node_modules/turbo-windows-arm64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-arm64@1.0.0/node_modules/turbo-windows-arm64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-arm64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-arm64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-arm64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-arm64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
new file mode 100644
index 0000000000000..4a4a371790b2f
--- /dev/null
+++ b/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
@@ -0,0 +1,2 @@
+@echo off
+echo %*

From d35a2ee2d995ab5cf01e51d351bbc08ab339705b Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 12:02:44 -0600
Subject: [PATCH 02/12] WIP 8cd96

---
 .../src/shim/local_turbo_state.rs             | 20 ++++++++++--
 .../integration/tests/find-turbo/linked.t     | 32 ++++++++++++++++---
 2 files changed, 46 insertions(+), 6 deletions(-)

diff --git a/crates/turborepo-lib/src/shim/local_turbo_state.rs b/crates/turborepo-lib/src/shim/local_turbo_state.rs
index 760986fb212bf..66023e7f3a8d6 100644
--- a/crates/turborepo-lib/src/shim/local_turbo_state.rs
+++ b/crates/turborepo-lib/src/shim/local_turbo_state.rs
@@ -117,6 +117,11 @@ impl LocalTurboState {
         let platform_package_name = TurboState::platform_package_name();
         let binary_name = TurboState::binary_name();
 
+        debug!(
+            "Searching for local turbo. Platform: {}, Binary: {}",
+            platform_package_name, binary_name
+        );
+
         let platform_package_json_path_components = [platform_package_name, "package.json"];
         let platform_package_executable_path_components =
             [platform_package_name, "bin", binary_name];
@@ -131,13 +136,20 @@ impl LocalTurboState {
 
         // Detecting the package manager is more expensive than just doing an exhaustive
         // search.
-        for root in search_functions
+        for (idx, root) in search_functions
             .iter()
             .filter_map(|search_function| search_function(root_path))
+            .enumerate()
         {
+            debug!("Trying search path #{}: {}", idx + 1, root);
             // Needs borrow because of the loop.
             #[allow(clippy::needless_borrow)]
             let bin_path = root.join_components(&platform_package_executable_path_components);
+            debug!("Looking for binary at: {}", bin_path);
+
+            let exists = bin_path.exists();
+            debug!("Binary exists: {}", exists);
+
             match fs_canonicalize(&bin_path) {
                 Ok(bin_path) => {
                     let resolved_package_json_path =
@@ -153,10 +165,14 @@ impl LocalTurboState {
                         version: local_version,
                     });
                 }
-                Err(_) => debug!("No local turbo binary found at: {}", bin_path),
+                Err(e) => debug!(
+                    "No local turbo binary found at: {} (error: {})",
+                    bin_path, e
+                ),
             }
         }
 
+        debug!("No local turbo found after searching all paths");
         None
     }
 
diff --git a/turborepo-tests/integration/tests/find-turbo/linked.t b/turborepo-tests/integration/tests/find-turbo/linked.t
index 29c6173ef9439..315c86a2ec415 100644
--- a/turborepo-tests/integration/tests/find-turbo/linked.t
+++ b/turborepo-tests/integration/tests/find-turbo/linked.t
@@ -4,14 +4,38 @@ Setup
 
 Make sure we use local, but do not pass --skip-infer to old binary
   $ ${TESTDIR}/set_version.sh $(pwd) "1.0.0"
-  $ ${TURBO} build --filter foo -vv > out.log 2>&1
-  $ grep --quiet -F "Local turbo version: 1.0.0" out.log
+  $ echo "Running turbo with verbose output..."
+  Running turbo with verbose output...
+  $ ${TURBO} build --filter foo -vv 2>&1 | tee out.log
+  * (glob)
+  $ echo "=== Full output from out.log ==="
+  === Full output from out.log ===
+  $ cat out.log
+  * (glob)
+  $ echo "=== Checking for version string ==="
+  === Checking for version string ===
+  $ grep -F "Local turbo version: 1.0.0" out.log || echo "VERSION STRING NOT FOUND"
+  * (glob)
+  $ echo "=== Last line of output ==="
+  === Last line of output ===
   $ cat out.log | tail -n1
   build --filter foo -vv --
 
 Make sure we use local, and DO pass --skip-infer to newer binary
   $ ${TESTDIR}/set_version.sh $(pwd) "1.8.0"
-  $ ${TURBO} build --filter foo -vv > out.log 2>&1
-  $ grep --quiet -F "Local turbo version: 1.8.0" out.log
+  $ echo "Running turbo with newer version..."
+  Running turbo with newer version...
+  $ ${TURBO} build --filter foo -vv 2>&1 | tee out.log
+  * (glob)
+  $ echo "=== Full output from out.log ==="
+  === Full output from out.log ===
+  $ cat out.log
+  * (glob)
+  $ echo "=== Checking for version string ==="
+  === Checking for version string ===
+  $ grep -F "Local turbo version: 1.8.0" out.log || echo "VERSION STRING NOT FOUND"
+  * (glob)
+  $ echo "=== Last line of output ==="
+  === Last line of output ===
   $ cat out.log | tail -n1
   --skip-infer build --filter foo -vv --single-package --

From 907a38b585c1dac5e5bb925324f806d2035f6950 Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 12:49:17 -0600
Subject: [PATCH 03/12] WIP acc1b

---
 .../integration/tests/find-turbo/linked.t     |  9 +++++
 .../integration/tests/find-turbo/setup.sh     | 34 +++++++++++++++++--
 2 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/turborepo-tests/integration/tests/find-turbo/linked.t b/turborepo-tests/integration/tests/find-turbo/linked.t
index 315c86a2ec415..be0e40d988a76 100644
--- a/turborepo-tests/integration/tests/find-turbo/linked.t
+++ b/turborepo-tests/integration/tests/find-turbo/linked.t
@@ -1,6 +1,15 @@
 Setup
   $ . ${TESTDIR}/../../../helpers/setup.sh
   $ . ${TESTDIR}/setup.sh $(pwd) "linked"
+  * (glob)
+  $ echo "=== Verifying fixture state after setup ==="
+  === Verifying fixture state after setup ===
+  $ ls -la node_modules/turbo 2>&1 || echo "node_modules/turbo does not exist"
+  * (glob)
+  $ ls -la node_modules/.pnpm 2>&1 | head -5
+  * (glob)
+  $ echo "=== End verification ==="
+  === End verification ===
 
 Make sure we use local, but do not pass --skip-infer to old binary
   $ ${TESTDIR}/set_version.sh $(pwd) "1.0.0"
diff --git a/turborepo-tests/integration/tests/find-turbo/setup.sh b/turborepo-tests/integration/tests/find-turbo/setup.sh
index 387b9c37e14d4..c0fed04b2052d 100644
--- a/turborepo-tests/integration/tests/find-turbo/setup.sh
+++ b/turborepo-tests/integration/tests/find-turbo/setup.sh
@@ -5,6 +5,10 @@ SCRIPT_DIR=$(dirname ${BASH_SOURCE[0]})
 TARGET_DIR=$1
 FIXTURE_DIR=$2
 
+echo "=== Setup starting for fixture: $FIXTURE_DIR ==="
+echo "OSTYPE: $OSTYPE"
+echo "TARGET_DIR: $TARGET_DIR"
+
 cp -a ${SCRIPT_DIR}/../../fixtures/find_turbo/$FIXTURE_DIR/. ${TARGET_DIR}/
 
 # We need to symlink: turbo -> .pnpm/turbo@1.0.0/node_modules/turbo
@@ -12,18 +16,44 @@ cp -a ${SCRIPT_DIR}/../../fixtures/find_turbo/$FIXTURE_DIR/. ${TARGET_DIR}/
 # and `.pnpm/turbo@1.0.0/node_modules/turbo` is the path to symlink to
 # Note: using a nested if so it's easy to find the Windows checks in scripts around the codebase.
 if [[ "$OSTYPE" == "msys" ]]; then
+   echo "Running on Windows (msys)"
    if [[ $FIXTURE_DIR == "linked" ]]; then
+    echo "Setting up linked fixture for Windows..."
+
+    # Check what exists before we start
+    echo "Before setup:"
+    ls -la node_modules/turbo 2>&1 || echo "node_modules/turbo does not exist"
+    ls -la node_modules/.pnpm/turbo@1.0.0/node_modules/turbo 2>&1 || echo "pnpm turbo directory does not exist"
+
     # Delete the existing turbo directory or file, whatever exists there
+    echo "Removing existing node_modules/turbo..."
     rm -rf node_modules/turbo
 
     # Let's enter the node_modules directory
-    # echo "entering node_modules directory"
+    echo "Entering node_modules directory..."
     pushd node_modules > /dev/null || exit 1
 
     # Use pnpx to run symlnk-dir because installing globally doesn't work with pnpm.
-    pnpx symlink-dir .pnpm/turbo@1.0.0/node_modules/turbo turbo > /dev/null 2>&1
+    echo "Attempting to create symlink with: pnpx symlink-dir .pnpm/turbo@1.0.0/node_modules/turbo turbo"
+    if pnpx symlink-dir .pnpm/turbo@1.0.0/node_modules/turbo turbo; then
+      echo "✓ Symlink created successfully"
+    else
+      EXIT_CODE=$?
+      echo "✗ Symlink creation FAILED with exit code: $EXIT_CODE"
+    fi
 
     # Get outta there
     popd > /dev/null || exit 1
+
+    # Verify what we ended up with
+    echo "After setup:"
+    ls -la node_modules/turbo 2>&1 || echo "node_modules/turbo still does not exist"
+    if [ -L node_modules/turbo ]; then
+      echo "node_modules/turbo is a symlink pointing to: $(readlink node_modules/turbo)"
+    fi
+
+    echo "=== Setup complete ==="
   fi
+else
+  echo "Not running on Windows, skipping Windows-specific setup"
 fi

From 41069defae12333c6b3ea7bad2618d6e320ecde6 Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 13:14:21 -0600
Subject: [PATCH 04/12] WIP 65025

---
 .../integration/tests/find-turbo/setup.sh       | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/turborepo-tests/integration/tests/find-turbo/setup.sh b/turborepo-tests/integration/tests/find-turbo/setup.sh
index c0fed04b2052d..1ab5ae09a9bfe 100644
--- a/turborepo-tests/integration/tests/find-turbo/setup.sh
+++ b/turborepo-tests/integration/tests/find-turbo/setup.sh
@@ -11,6 +11,16 @@ echo "TARGET_DIR: $TARGET_DIR"
 
 cp -a ${SCRIPT_DIR}/../../fixtures/find_turbo/$FIXTURE_DIR/. ${TARGET_DIR}/
 
+# Verify what got copied
+echo "Checking .pnpm contents after cp:"
+ls -la ${TARGET_DIR}/node_modules/.pnpm/ 2>&1 || echo ".pnpm directory does not exist"
+if [ -d "${TARGET_DIR}/node_modules/.pnpm/turbo@1.0.0" ]; then
+  echo "turbo@1.0.0 directory exists"
+  ls -la ${TARGET_DIR}/node_modules/.pnpm/turbo@1.0.0/node_modules/ 2>&1 || echo "node_modules subdirectory missing"
+else
+  echo "ERROR: turbo@1.0.0 directory was NOT copied!"
+fi
+
 # We need to symlink: turbo -> .pnpm/turbo@1.0.0/node_modules/turbo
 # where `turbo` is the symlink
 # and `.pnpm/turbo@1.0.0/node_modules/turbo` is the path to symlink to
@@ -49,7 +59,12 @@ if [[ "$OSTYPE" == "msys" ]]; then
     echo "After setup:"
     ls -la node_modules/turbo 2>&1 || echo "node_modules/turbo still does not exist"
     if [ -L node_modules/turbo ]; then
-      echo "node_modules/turbo is a symlink pointing to: $(readlink node_modules/turbo)"
+      LINK_TARGET=$(readlink node_modules/turbo)
+      echo "node_modules/turbo is a symlink pointing to: $LINK_TARGET"
+      echo "Checking if symlink target exists:"
+      ls -la "node_modules/$LINK_TARGET" 2>&1 || echo "ERROR: Symlink target does NOT exist!"
+      echo "Checking if we can find turbo-windows-64 from the symlink target:"
+      ls -la "node_modules/$LINK_TARGET/../turbo-windows-64" 2>&1 || echo "ERROR: turbo-windows-64 not found relative to symlink target"
     fi
 
     echo "=== Setup complete ==="

From 77ef4bbaad2679a65c2eb93ea88b3d9f31cf0d0c Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 13:51:28 -0600
Subject: [PATCH 05/12] WIP d3d02

---
 .../src/shim/local_turbo_state.rs             | 53 +++++++++++++++++--
 1 file changed, 50 insertions(+), 3 deletions(-)

diff --git a/crates/turborepo-lib/src/shim/local_turbo_state.rs b/crates/turborepo-lib/src/shim/local_turbo_state.rs
index 66023e7f3a8d6..552445937aba5 100644
--- a/crates/turborepo-lib/src/shim/local_turbo_state.rs
+++ b/crates/turborepo-lib/src/shim/local_turbo_state.rs
@@ -59,10 +59,57 @@ impl LocalTurboState {
         // leading to the wrong place. We could separate the Windows
         // implementation, but this workaround works for other platforms as
         // well.
-        let canonical_path =
-            fs_canonicalize(root_path.as_path().join("node_modules").join("turbo")).ok()?;
+        let turbo_path = root_path.as_path().join("node_modules").join("turbo");
+        debug!(
+            "generate_linked_path: Attempting to canonicalize: {}",
+            turbo_path.display()
+        );
 
-        AbsoluteSystemPathBuf::try_from(canonical_path.parent()?).ok()
+        match fs_canonicalize(&turbo_path) {
+            Ok(canonical_path) => {
+                debug!(
+                    "generate_linked_path: Canonicalized to: {}",
+                    canonical_path.display()
+                );
+                match canonical_path.parent() {
+                    Some(parent) => {
+                        debug!(
+                            "generate_linked_path: Parent directory: {}",
+                            parent.display()
+                        );
+                        match AbsoluteSystemPathBuf::try_from(parent) {
+                            Ok(path) => {
+                                debug!(
+                                    "generate_linked_path: Successfully created \
+                                     AbsoluteSystemPathBuf"
+                                );
+                                Some(path)
+                            }
+                            Err(e) => {
+                                debug!(
+                                    "generate_linked_path: Failed to create \
+                                     AbsoluteSystemPathBuf: {:?}",
+                                    e
+                                );
+                                None
+                            }
+                        }
+                    }
+                    None => {
+                        debug!("generate_linked_path: Canonicalized path has no parent");
+                        None
+                    }
+                }
+            }
+            Err(e) => {
+                debug!(
+                    "generate_linked_path: Failed to canonicalize {}: {}",
+                    turbo_path.display(),
+                    e
+                );
+                None
+            }
+        }
     }
 
     // The unplugged directory doesn't have a fixed path.

From 0dc95ae065538f1f75bc5498a9f7d0f704a5c659 Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 14:18:11 -0600
Subject: [PATCH 06/12] WIP 7fa9a

---
 crates/turborepo-lib/src/shim/local_turbo_state.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crates/turborepo-lib/src/shim/local_turbo_state.rs b/crates/turborepo-lib/src/shim/local_turbo_state.rs
index 552445937aba5..dd0ae6b7e4700 100644
--- a/crates/turborepo-lib/src/shim/local_turbo_state.rs
+++ b/crates/turborepo-lib/src/shim/local_turbo_state.rs
@@ -62,7 +62,7 @@ impl LocalTurboState {
         let turbo_path = root_path.as_path().join("node_modules").join("turbo");
         debug!(
             "generate_linked_path: Attempting to canonicalize: {}",
-            turbo_path.display()
+            turbo_path.as_str()
         );
 
         match fs_canonicalize(&turbo_path) {
@@ -104,7 +104,7 @@ impl LocalTurboState {
             Err(e) => {
                 debug!(
                     "generate_linked_path: Failed to canonicalize {}: {}",
-                    turbo_path.display(),
+                    turbo_path.as_str(),
                     e
                 );
                 None

From 2406bfef68b88ad6c6ae873b201fc04b5be94fb1 Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 20:12:11 -0600
Subject: [PATCH 07/12] first try at a real fix

---
 .../src/shim/local_turbo_state.rs             | 72 +++++++++++++++++--
 1 file changed, 68 insertions(+), 4 deletions(-)

diff --git a/crates/turborepo-lib/src/shim/local_turbo_state.rs b/crates/turborepo-lib/src/shim/local_turbo_state.rs
index dd0ae6b7e4700..2921e269377a6 100644
--- a/crates/turborepo-lib/src/shim/local_turbo_state.rs
+++ b/crates/turborepo-lib/src/shim/local_turbo_state.rs
@@ -62,7 +62,7 @@ impl LocalTurboState {
         let turbo_path = root_path.as_path().join("node_modules").join("turbo");
         debug!(
             "generate_linked_path: Attempting to canonicalize: {}",
-            turbo_path.as_str()
+            turbo_path
         );
 
         match fs_canonicalize(&turbo_path) {
@@ -104,10 +104,74 @@ impl LocalTurboState {
             Err(e) => {
                 debug!(
                     "generate_linked_path: Failed to canonicalize {}: {}",
-                    turbo_path.as_str(),
-                    e
+                    turbo_path, e
                 );
-                None
+
+                // On Windows, canonicalize can fail with permission errors even when
+                // the symlink is valid. Try using read_link instead.
+                #[cfg(target_os = "windows")]
+                {
+                    debug!("generate_linked_path: Attempting Windows fallback with read_link");
+                    match fs::read_link(&turbo_path) {
+                        Ok(link_target) => {
+                            debug!(
+                                "generate_linked_path: read_link succeeded, target: {}",
+                                link_target.display()
+                            );
+
+                            // The link target is relative to the symlink location
+                            // e.g., ".pnpm/turbo@1.0.0/node_modules/turbo"
+                            // We need to resolve it relative to node_modules directory
+                            let node_modules = root_path.as_path().join("node_modules");
+                            let resolved = node_modules.join(&link_target);
+
+                            debug!(
+                                "generate_linked_path: Resolved path: {}",
+                                resolved.display()
+                            );
+
+                            // Get the parent directory (should be .pnpm/turbo@1.0.0/node_modules)
+                            match resolved.parent() {
+                                Some(parent) => {
+                                    debug!(
+                                        "generate_linked_path: Parent directory: {}",
+                                        parent.display()
+                                    );
+                                    match AbsoluteSystemPathBuf::try_from(parent) {
+                                        Ok(path) => {
+                                            debug!(
+                                                "generate_linked_path: Successfully created \
+                                                 AbsoluteSystemPathBuf from read_link fallback"
+                                            );
+                                            Some(path)
+                                        }
+                                        Err(e) => {
+                                            debug!(
+                                                "generate_linked_path: Failed to create \
+                                                 AbsoluteSystemPathBuf: {:?}",
+                                                e
+                                            );
+                                            None
+                                        }
+                                    }
+                                }
+                                None => {
+                                    debug!("generate_linked_path: Resolved path has no parent");
+                                    None
+                                }
+                            }
+                        }
+                        Err(e) => {
+                            debug!("generate_linked_path: read_link also failed: {}", e);
+                            None
+                        }
+                    }
+                }
+
+                #[cfg(not(target_os = "windows"))]
+                {
+                    None
+                }
             }
         }
     }

From 054ce70e1524f8c896f3f92b9dccd6883bd91f78 Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 20:39:15 -0600
Subject: [PATCH 08/12] WIP 9e710

---
 crates/turborepo-lib/src/shim/local_turbo_state.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/crates/turborepo-lib/src/shim/local_turbo_state.rs b/crates/turborepo-lib/src/shim/local_turbo_state.rs
index 2921e269377a6..edd962c1aad09 100644
--- a/crates/turborepo-lib/src/shim/local_turbo_state.rs
+++ b/crates/turborepo-lib/src/shim/local_turbo_state.rs
@@ -112,7 +112,7 @@ impl LocalTurboState {
                 #[cfg(target_os = "windows")]
                 {
                     debug!("generate_linked_path: Attempting Windows fallback with read_link");
-                    match fs::read_link(&turbo_path) {
+                    match fs::read_link(turbo_path.as_std_path()) {
                         Ok(link_target) => {
                             debug!(
                                 "generate_linked_path: read_link succeeded, target: {}",
@@ -122,7 +122,8 @@ impl LocalTurboState {
                             // The link target is relative to the symlink location
                             // e.g., ".pnpm/turbo@1.0.0/node_modules/turbo"
                             // We need to resolve it relative to node_modules directory
-                            let node_modules = root_path.as_path().join("node_modules");
+                            let node_modules =
+                                PathBuf::from(root_path.as_path().as_str()).join("node_modules");
                             let resolved = node_modules.join(&link_target);
 
                             debug!(

From 03f923d619e45777837ec4c3e23aeef504641c97 Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 21:50:40 -0600
Subject: [PATCH 09/12] WIP 19557

---
 .../integration/tests/find-turbo/setup.sh     | 50 +------------------
 1 file changed, 2 insertions(+), 48 deletions(-)

diff --git a/turborepo-tests/integration/tests/find-turbo/setup.sh b/turborepo-tests/integration/tests/find-turbo/setup.sh
index 1ab5ae09a9bfe..04106c65ce244 100644
--- a/turborepo-tests/integration/tests/find-turbo/setup.sh
+++ b/turborepo-tests/integration/tests/find-turbo/setup.sh
@@ -5,70 +5,24 @@ SCRIPT_DIR=$(dirname ${BASH_SOURCE[0]})
 TARGET_DIR=$1
 FIXTURE_DIR=$2
 
-echo "=== Setup starting for fixture: $FIXTURE_DIR ==="
-echo "OSTYPE: $OSTYPE"
-echo "TARGET_DIR: $TARGET_DIR"
-
 cp -a ${SCRIPT_DIR}/../../fixtures/find_turbo/$FIXTURE_DIR/. ${TARGET_DIR}/
 
-# Verify what got copied
-echo "Checking .pnpm contents after cp:"
-ls -la ${TARGET_DIR}/node_modules/.pnpm/ 2>&1 || echo ".pnpm directory does not exist"
-if [ -d "${TARGET_DIR}/node_modules/.pnpm/turbo@1.0.0" ]; then
-  echo "turbo@1.0.0 directory exists"
-  ls -la ${TARGET_DIR}/node_modules/.pnpm/turbo@1.0.0/node_modules/ 2>&1 || echo "node_modules subdirectory missing"
-else
-  echo "ERROR: turbo@1.0.0 directory was NOT copied!"
-fi
-
 # We need to symlink: turbo -> .pnpm/turbo@1.0.0/node_modules/turbo
 # where `turbo` is the symlink
 # and `.pnpm/turbo@1.0.0/node_modules/turbo` is the path to symlink to
 # Note: using a nested if so it's easy to find the Windows checks in scripts around the codebase.
 if [[ "$OSTYPE" == "msys" ]]; then
-   echo "Running on Windows (msys)"
    if [[ $FIXTURE_DIR == "linked" ]]; then
-    echo "Setting up linked fixture for Windows..."
-
-    # Check what exists before we start
-    echo "Before setup:"
-    ls -la node_modules/turbo 2>&1 || echo "node_modules/turbo does not exist"
-    ls -la node_modules/.pnpm/turbo@1.0.0/node_modules/turbo 2>&1 || echo "pnpm turbo directory does not exist"
-
     # Delete the existing turbo directory or file, whatever exists there
-    echo "Removing existing node_modules/turbo..."
     rm -rf node_modules/turbo
 
     # Let's enter the node_modules directory
-    echo "Entering node_modules directory..."
     pushd node_modules > /dev/null || exit 1
 
-    # Use pnpx to run symlnk-dir because installing globally doesn't work with pnpm.
-    echo "Attempting to create symlink with: pnpx symlink-dir .pnpm/turbo@1.0.0/node_modules/turbo turbo"
-    if pnpx symlink-dir .pnpm/turbo@1.0.0/node_modules/turbo turbo; then
-      echo "✓ Symlink created successfully"
-    else
-      EXIT_CODE=$?
-      echo "✗ Symlink creation FAILED with exit code: $EXIT_CODE"
-    fi
+    # Use pnpx to run symlink-dir because installing globally doesn't work with pnpm.
+    pnpx symlink-dir .pnpm/turbo@1.0.0/node_modules/turbo turbo > /dev/null 2>&1
 
     # Get outta there
     popd > /dev/null || exit 1
-
-    # Verify what we ended up with
-    echo "After setup:"
-    ls -la node_modules/turbo 2>&1 || echo "node_modules/turbo still does not exist"
-    if [ -L node_modules/turbo ]; then
-      LINK_TARGET=$(readlink node_modules/turbo)
-      echo "node_modules/turbo is a symlink pointing to: $LINK_TARGET"
-      echo "Checking if symlink target exists:"
-      ls -la "node_modules/$LINK_TARGET" 2>&1 || echo "ERROR: Symlink target does NOT exist!"
-      echo "Checking if we can find turbo-windows-64 from the symlink target:"
-      ls -la "node_modules/$LINK_TARGET/../turbo-windows-64" 2>&1 || echo "ERROR: turbo-windows-64 not found relative to symlink target"
-    fi
-
-    echo "=== Setup complete ==="
   fi
-else
-  echo "Not running on Windows, skipping Windows-specific setup"
 fi

From 7149bfacc3b6b59253ea70c10ba1a6edfffd7827 Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 22:18:47 -0600
Subject: [PATCH 10/12] WIP 19715

---
 .../turbo-windows-64/bin/turbo.exe            |  2 -
 .../turbo-windows-arm64/bin/turbo.exe         |  2 -
 .../turbo-windows-64/bin/turbo.exe            |  2 -
 .../turbo-windows-arm64/bin/turbo.exe         |  2 -
 .../turbo-windows-64/bin/turbo.exe            |  2 -
 .../turbo-windows-arm64/bin/turbo.exe         |  2 -
 .../turbo-windows-64/bin/turbo.exe            |  2 -
 .../turbo-windows-arm64/bin/turbo.exe         |  2 -
 .../turbo-windows-64/bin/turbo.exe            |  2 -
 .../turbo-windows-arm64/bin/turbo.exe         |  2 -
 .../turbo-windows-64/bin/turbo.exe            |  2 -
 .../turbo-windows-arm64/bin/turbo.exe         |  2 -
 .../turbo-windows-64/bin/turbo.exe            |  2 -
 .../turbo-windows-arm64/bin/turbo.exe         |  2 -
 .../integration/tests/find-turbo/linked.t     | 41 ++-----------------
 .../integration/tests/find-turbo/setup.sh     |  3 +-
 16 files changed, 6 insertions(+), 66 deletions(-)
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-arm64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-64@1.0.0/node_modules/turbo-windows-64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-arm64@1.0.0/node_modules/turbo-windows-arm64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-arm64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-arm64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
 delete mode 100644 turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe

diff --git a/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-arm64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/hoisted/node_modules/turbo-windows-arm64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-64@1.0.0/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-64@1.0.0/node_modules/turbo-windows-64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-64@1.0.0/node_modules/turbo-windows-64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-arm64@1.0.0/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-arm64@1.0.0/node_modules/turbo-windows-arm64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/linked/node_modules/.pnpm/turbo-windows-arm64@1.0.0/node_modules/turbo-windows-arm64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-arm64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/nested/node_modules/turbo/node_modules/turbo-windows-arm64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-arm64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/self/node_modules/turbo-windows-arm64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/unplugged/.yarn/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/unplugged_env_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-64-npm-1.0.0-520925a700/node_modules/turbo-windows-64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe b/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
deleted file mode 100644
index 4a4a371790b2f..0000000000000
--- a/turborepo-tests/integration/fixtures/find_turbo/unplugged_moved/.moved/unplugged/turbo-windows-arm64-npm-1.0.0-520925a700/node_modules/turbo-windows-arm64/bin/turbo.exe
+++ /dev/null
@@ -1,2 +0,0 @@
-@echo off
-echo %*
diff --git a/turborepo-tests/integration/tests/find-turbo/linked.t b/turborepo-tests/integration/tests/find-turbo/linked.t
index be0e40d988a76..29c6173ef9439 100644
--- a/turborepo-tests/integration/tests/find-turbo/linked.t
+++ b/turborepo-tests/integration/tests/find-turbo/linked.t
@@ -1,50 +1,17 @@
 Setup
   $ . ${TESTDIR}/../../../helpers/setup.sh
   $ . ${TESTDIR}/setup.sh $(pwd) "linked"
-  * (glob)
-  $ echo "=== Verifying fixture state after setup ==="
-  === Verifying fixture state after setup ===
-  $ ls -la node_modules/turbo 2>&1 || echo "node_modules/turbo does not exist"
-  * (glob)
-  $ ls -la node_modules/.pnpm 2>&1 | head -5
-  * (glob)
-  $ echo "=== End verification ==="
-  === End verification ===
 
 Make sure we use local, but do not pass --skip-infer to old binary
   $ ${TESTDIR}/set_version.sh $(pwd) "1.0.0"
-  $ echo "Running turbo with verbose output..."
-  Running turbo with verbose output...
-  $ ${TURBO} build --filter foo -vv 2>&1 | tee out.log
-  * (glob)
-  $ echo "=== Full output from out.log ==="
-  === Full output from out.log ===
-  $ cat out.log
-  * (glob)
-  $ echo "=== Checking for version string ==="
-  === Checking for version string ===
-  $ grep -F "Local turbo version: 1.0.0" out.log || echo "VERSION STRING NOT FOUND"
-  * (glob)
-  $ echo "=== Last line of output ==="
-  === Last line of output ===
+  $ ${TURBO} build --filter foo -vv > out.log 2>&1
+  $ grep --quiet -F "Local turbo version: 1.0.0" out.log
   $ cat out.log | tail -n1
   build --filter foo -vv --
 
 Make sure we use local, and DO pass --skip-infer to newer binary
   $ ${TESTDIR}/set_version.sh $(pwd) "1.8.0"
-  $ echo "Running turbo with newer version..."
-  Running turbo with newer version...
-  $ ${TURBO} build --filter foo -vv 2>&1 | tee out.log
-  * (glob)
-  $ echo "=== Full output from out.log ==="
-  === Full output from out.log ===
-  $ cat out.log
-  * (glob)
-  $ echo "=== Checking for version string ==="
-  === Checking for version string ===
-  $ grep -F "Local turbo version: 1.8.0" out.log || echo "VERSION STRING NOT FOUND"
-  * (glob)
-  $ echo "=== Last line of output ==="
-  === Last line of output ===
+  $ ${TURBO} build --filter foo -vv > out.log 2>&1
+  $ grep --quiet -F "Local turbo version: 1.8.0" out.log
   $ cat out.log | tail -n1
   --skip-infer build --filter foo -vv --single-package --
diff --git a/turborepo-tests/integration/tests/find-turbo/setup.sh b/turborepo-tests/integration/tests/find-turbo/setup.sh
index 04106c65ce244..387b9c37e14d4 100644
--- a/turborepo-tests/integration/tests/find-turbo/setup.sh
+++ b/turborepo-tests/integration/tests/find-turbo/setup.sh
@@ -17,9 +17,10 @@ if [[ "$OSTYPE" == "msys" ]]; then
     rm -rf node_modules/turbo
 
     # Let's enter the node_modules directory
+    # echo "entering node_modules directory"
     pushd node_modules > /dev/null || exit 1
 
-    # Use pnpx to run symlink-dir because installing globally doesn't work with pnpm.
+    # Use pnpx to run symlnk-dir because installing globally doesn't work with pnpm.
     pnpx symlink-dir .pnpm/turbo@1.0.0/node_modules/turbo turbo > /dev/null 2>&1
 
     # Get outta there

From 280a803fe6aa8f52e3584f91eb797a3a851d4e71 Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 22:43:37 -0600
Subject: [PATCH 11/12] WIP 0a200

---
 .../src/shim/local_turbo_state.rs             | 120 ++----------------
 1 file changed, 11 insertions(+), 109 deletions(-)

diff --git a/crates/turborepo-lib/src/shim/local_turbo_state.rs b/crates/turborepo-lib/src/shim/local_turbo_state.rs
index edd962c1aad09..1045603aa6015 100644
--- a/crates/turborepo-lib/src/shim/local_turbo_state.rs
+++ b/crates/turborepo-lib/src/shim/local_turbo_state.rs
@@ -60,65 +60,19 @@ impl LocalTurboState {
         // implementation, but this workaround works for other platforms as
         // well.
         let turbo_path = root_path.as_path().join("node_modules").join("turbo");
-        debug!(
-            "generate_linked_path: Attempting to canonicalize: {}",
-            turbo_path
-        );
 
         match fs_canonicalize(&turbo_path) {
-            Ok(canonical_path) => {
-                debug!(
-                    "generate_linked_path: Canonicalized to: {}",
-                    canonical_path.display()
-                );
-                match canonical_path.parent() {
-                    Some(parent) => {
-                        debug!(
-                            "generate_linked_path: Parent directory: {}",
-                            parent.display()
-                        );
-                        match AbsoluteSystemPathBuf::try_from(parent) {
-                            Ok(path) => {
-                                debug!(
-                                    "generate_linked_path: Successfully created \
-                                     AbsoluteSystemPathBuf"
-                                );
-                                Some(path)
-                            }
-                            Err(e) => {
-                                debug!(
-                                    "generate_linked_path: Failed to create \
-                                     AbsoluteSystemPathBuf: {:?}",
-                                    e
-                                );
-                                None
-                            }
-                        }
-                    }
-                    None => {
-                        debug!("generate_linked_path: Canonicalized path has no parent");
-                        None
-                    }
-                }
-            }
-            Err(e) => {
-                debug!(
-                    "generate_linked_path: Failed to canonicalize {}: {}",
-                    turbo_path, e
-                );
-
+            Ok(canonical_path) => match canonical_path.parent() {
+                Some(parent) => AbsoluteSystemPathBuf::try_from(parent).ok(),
+                None => None,
+            },
+            Err(_) => {
                 // On Windows, canonicalize can fail with permission errors even when
                 // the symlink is valid. Try using read_link instead.
                 #[cfg(target_os = "windows")]
                 {
-                    debug!("generate_linked_path: Attempting Windows fallback with read_link");
                     match fs::read_link(turbo_path.as_std_path()) {
                         Ok(link_target) => {
-                            debug!(
-                                "generate_linked_path: read_link succeeded, target: {}",
-                                link_target.display()
-                            );
-
                             // The link target is relative to the symlink location
                             // e.g., ".pnpm/turbo@1.0.0/node_modules/turbo"
                             // We need to resolve it relative to node_modules directory
@@ -126,46 +80,12 @@ impl LocalTurboState {
                                 PathBuf::from(root_path.as_path().as_str()).join("node_modules");
                             let resolved = node_modules.join(&link_target);
 
-                            debug!(
-                                "generate_linked_path: Resolved path: {}",
-                                resolved.display()
-                            );
-
                             // Get the parent directory (should be .pnpm/turbo@1.0.0/node_modules)
-                            match resolved.parent() {
-                                Some(parent) => {
-                                    debug!(
-                                        "generate_linked_path: Parent directory: {}",
-                                        parent.display()
-                                    );
-                                    match AbsoluteSystemPathBuf::try_from(parent) {
-                                        Ok(path) => {
-                                            debug!(
-                                                "generate_linked_path: Successfully created \
-                                                 AbsoluteSystemPathBuf from read_link fallback"
-                                            );
-                                            Some(path)
-                                        }
-                                        Err(e) => {
-                                            debug!(
-                                                "generate_linked_path: Failed to create \
-                                                 AbsoluteSystemPathBuf: {:?}",
-                                                e
-                                            );
-                                            None
-                                        }
-                                    }
-                                }
-                                None => {
-                                    debug!("generate_linked_path: Resolved path has no parent");
-                                    None
-                                }
-                            }
-                        }
-                        Err(e) => {
-                            debug!("generate_linked_path: read_link also failed: {}", e);
-                            None
+                            resolved
+                                .parent()
+                                .and_then(|parent| AbsoluteSystemPathBuf::try_from(parent).ok())
                         }
+                        Err(_) => None,
                     }
                 }
 
@@ -229,11 +149,6 @@ impl LocalTurboState {
         let platform_package_name = TurboState::platform_package_name();
         let binary_name = TurboState::binary_name();
 
-        debug!(
-            "Searching for local turbo. Platform: {}, Binary: {}",
-            platform_package_name, binary_name
-        );
-
         let platform_package_json_path_components = [platform_package_name, "package.json"];
         let platform_package_executable_path_components =
             [platform_package_name, "bin", binary_name];
@@ -248,20 +163,13 @@ impl LocalTurboState {
 
         // Detecting the package manager is more expensive than just doing an exhaustive
         // search.
-        for (idx, root) in search_functions
+        for root in search_functions
             .iter()
             .filter_map(|search_function| search_function(root_path))
-            .enumerate()
         {
-            debug!("Trying search path #{}: {}", idx + 1, root);
             // Needs borrow because of the loop.
             #[allow(clippy::needless_borrow)]
             let bin_path = root.join_components(&platform_package_executable_path_components);
-            debug!("Looking for binary at: {}", bin_path);
-
-            let exists = bin_path.exists();
-            debug!("Binary exists: {}", exists);
-
             match fs_canonicalize(&bin_path) {
                 Ok(bin_path) => {
                     let resolved_package_json_path =
@@ -270,21 +178,15 @@ impl LocalTurboState {
                         PackageJson::load(&resolved_package_json_path).ok()?;
                     let local_version = platform_package_json.version?;
 
-                    debug!("Local turbo path: {}", bin_path.display());
-                    debug!("Local turbo version: {}", &local_version);
                     return Some(Self {
                         bin_path,
                         version: local_version,
                     });
                 }
-                Err(e) => debug!(
-                    "No local turbo binary found at: {} (error: {})",
-                    bin_path, e
-                ),
+                Err(_) => debug!("No local turbo binary found at: {}", bin_path),
             }
         }
 
-        debug!("No local turbo found after searching all paths");
         None
     }
 

From 1f5cafce60f7efe00fcf3882e73cd7e5ad68124b Mon Sep 17 00:00:00 2001
From: Anthony Shew <anthonyshew@gmail.com>
Date: Fri, 17 Oct 2025 22:45:45 -0600
Subject: [PATCH 12/12] WIP 935c0

---
 crates/turborepo-lib/src/shim/local_turbo_state.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/crates/turborepo-lib/src/shim/local_turbo_state.rs b/crates/turborepo-lib/src/shim/local_turbo_state.rs
index 1045603aa6015..7313c0550db9e 100644
--- a/crates/turborepo-lib/src/shim/local_turbo_state.rs
+++ b/crates/turborepo-lib/src/shim/local_turbo_state.rs
@@ -178,6 +178,8 @@ impl LocalTurboState {
                         PackageJson::load(&resolved_package_json_path).ok()?;
                     let local_version = platform_package_json.version?;
 
+                    debug!("Local turbo path: {}", bin_path.display());
+                    debug!("Local turbo version: {}", &local_version);
                     return Some(Self {
                         bin_path,
                         version: local_version,