From c6451bed5b06bb8f612b20fb0993a2fe4e0f0582 Mon Sep 17 00:00:00 2001
From: Julien Cristau <jcristau@mozilla.com>
Date: Wed, 11 Mar 2026 16:04:14 +0100
Subject: [PATCH] run-task: use uv pip install --prefix instead of --target

This way scripts end up in ~/.local/bin/ instead of
~/local/lib/python3.XX/site-packages/bin.
---
 src/taskgraph/run-task/run-task | 8 ++++----
 test/test_scripts_run_task.py   | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/taskgraph/run-task/run-task b/src/taskgraph/run-task/run-task
index 856c24a4f..deca3a691 100755
--- a/src/taskgraph/run-task/run-task
+++ b/src/taskgraph/run-task/run-task
@@ -1044,8 +1044,8 @@ def install_pip_requirements(repositories):
 
     # TODO: Stop using system Python (#381)
     if shutil.which("uv"):
-        user_site_dir = subprocess.run(
-            [sys.executable, "-msite", "--user-site"], capture_output=True, text=True
+        user_base_dir = subprocess.run(
+            [sys.executable, "-msite", "--user-base"], capture_output=True, text=True
         ).stdout.strip()
         cmd = [
             "uv",
@@ -1053,8 +1053,8 @@ def install_pip_requirements(repositories):
             "install",
             "--python",
             sys.executable,
-            "--target",
-            user_site_dir,
+            "--prefix",
+            user_base_dir,
         ]
     else:
         cmd = [sys.executable, "-mpip", "install", "--user", "--break-system-packages"]
diff --git a/test/test_scripts_run_task.py b/test/test_scripts_run_task.py
index 83fd4e7b7..b2393721c 100644
--- a/test/test_scripts_run_task.py
+++ b/test/test_scripts_run_task.py
@@ -143,8 +143,8 @@ def test_install_pip_requirements_with_uv(
             "install",
             "--python",
             sys.executable,
-            "--target",
-            site.getusersitepackages(),
+            "--prefix",
+            site.getuserbase(),
             "--require-hashes",
             "-r",
             str(req),