feat: ros backend tests

.env.ci

@@ -0,0 +1 @@
+BUILD_BACKENDS_PR_NUMBER="395"

.github/workflows/CI.yml

@@ -40,14 +40,8 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Setup binary permissions
-        run: chmod a+x artifacts/pixi*
-
       - name: Run integration tests
         run: pixi run --locked test-slow
-        env:
-          PIXI_BIN_DIR: ${{ github.workspace }}/artifacts
-          BUILD_BACKENDS_BIN_DIR: ${{ github.workspace }}/artifacts
 
   test-windows-x86_64:
     timeout-minutes: 10
@@ -78,9 +72,6 @@ jobs:
       - name: Run integration tests
         run: pixi run --locked test-slow
         working-directory: ${{ env.PIXI_WORKSPACE }}
-        env:
-          PIXI_BIN_DIR: ${{ env.PIXI_WORKSPACE }}/artifacts
-          BUILD_BACKENDS_BIN_DIR: ${{ env.PIXI_WORKSPACE }}/artifacts
 
   test-macos-aarch64:
     timeout-minutes: 10
@@ -100,11 +91,5 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Setup binary permissions
-        run: chmod a+x artifacts/pixi*
-
       - name: Run integration tests
         run: pixi run --locked test-slow
-        env:
-          PIXI_BIN_DIR: ${{ github.workspace }}/artifacts
-          BUILD_BACKENDS_BIN_DIR: ${{ github.workspace }}/artifacts

README.md

@@ -25,10 +25,9 @@ If you prefer to use local checkouts, create a `.env` file with the paths to you
 
 ```shell
 PIXI_REPO="/path/to/pixi-repository"
-BUILD_BACKENDS_REPO="/path/to/pixi-build-backends-repository"
-
 PIXI_BIN_DIR="${PIXI_REPO}/target/pixi/release"
-BUILD_BACKENDS_BIN_DIR="${BUILD_BACKENDS_REPO}/target/pixi/release"
+
+BUILD_BACKENDS_REPO="/path/to/pixi-build-backends-repository"
 ```
 
 Then build the binaries with:

mypy.ini

@@ -1,4 +1,4 @@
 [mypy]
 strict = True
-exclude = tests/data/pypi-indexes
+exclude = tests/data/pypi-indexes|.*setup\.py
 files = tests,scripts

scripts/build-repos.py

@@ -10,6 +10,7 @@
 """
 
 import os
+import shutil
 import subprocess
 import sys
 from pathlib import Path
@@ -35,14 +36,28 @@ class PixiBuildError(Exception):
     pass
 
 
+class PixiChannelError(Exception):
+    """Raised when creating the testsuite channel fails."""
+
+    pass
+
+
 def run_command(
-    cmd: list[str], cwd: Path | None = None, capture_output: bool = True
+    cmd: list[str],
+    cwd: Path | None = None,
+    capture_output: bool = True,
+    env: dict[str, str] | None = None,
 ) -> tuple[int, str, str]:
     """Run a command and return exit code, stdout, and stderr."""
-    result = subprocess.run(cmd, cwd=cwd, capture_output=capture_output, text=True)
+    result = subprocess.run(cmd, cwd=cwd, capture_output=capture_output, text=True, env=env)
     return result.returncode, result.stdout, result.stderr
 
 
+def executable_name(base: str) -> str:
+    """Return the platform specific executable name."""
+    return f"{base}.exe" if sys.platform.startswith("win") else base
+
+
 def is_git_worktree(path: Path) -> bool:
     """Check if the given path is inside a git work tree (repo or worktree)."""
     if not path.exists() or not path.is_dir():
@@ -89,6 +104,34 @@ def build_executables(repo_path: Path) -> None:
         raise PixiBuildError(error_msg)
 
 
+def create_channel(repo_path: Path, project_root: Path) -> None:
+    """Create the local testsuite channel and move it into this repository."""
+    channel_source = repo_path / "artifacts-channel"
+
+    if channel_source.exists():
+        print("🧹 Removing existing channel directory before rebuilding")
+        shutil.rmtree(channel_source)
+
+    print("📦 Creating channel")
+    returncode, stdout, stderr = run_command(["pixi", "run", "create-channel"], cwd=repo_path)
+
+    if returncode != 0:
+        error_msg = "Failed to create testsuite channel"
+        if stderr:
+            error_msg += f": {stderr}"
+        if stdout:
+            error_msg += f" (Output: {stdout})"
+        raise PixiChannelError(error_msg)
+
+    if not channel_source.exists():
+        raise PixiChannelError(
+            f"Expected channel directory '{channel_source}' was not created. "
+            "Verify that 'pixi run create-channel' completed successfully."
+        )
+
+    print("✅ Testsuite channel ready at source repo")
+
+
 def process_repository(repo_path: Path, repo_name: str) -> None:
     """Process a single repository: verify, pull if on main, and build."""
     print(f"\n{'=' * 60}")
@@ -112,14 +155,12 @@ def process_repository(repo_path: Path, repo_name: str) -> None:
     else:
         print("⚠️  Could not determine current branch")
 
-    # Run pixi build
-    build_executables(repo_path)
-
 
 def main() -> None:
     """Main function to process repositories."""
     # Load environment variables from .env file
-    env_file = Path(__file__).parent.parent / ".env"
+    project_root = Path(__file__).parent.parent
+    env_file = project_root / ".env"
     if env_file.exists():
         load_dotenv(env_file, override=True)
         print(f"✅ Loaded environment variables from {env_file}")
@@ -150,12 +191,14 @@ def main() -> None:
 
     try:
         process_repository(pixi_repo_path, "PIXI_REPO")
+        build_executables(pixi_repo_path)
     except Exception as e:
         print(f"❌ Error processing PIXI_REPO: {e}")
         success = False
 
     try:
         process_repository(build_backends_repo_path, "BUILD_BACKENDS_REPO")
+        create_channel(build_backends_repo_path, project_root)
     except Exception as e:
         print(f"❌ Error processing BUILD_BACKENDS_REPO: {e}")
         success = False

scripts/download-artifacts.py

@@ -139,48 +139,27 @@ def download_and_extract_artifact(
             console.print(f"[green]Successfully downloaded pixi binary to: {final_path}")
 
         elif repo == "prefix-dev/pixi-build-backends":
-            # Extract all pixi-build-* executables
-            backend_executables = []
-            is_windows = sys.platform.startswith("win")
-
+            # Find the pixi binary
+            some_repodata_file = None
             for file_name in file_list:
-                base_name = Path(file_name).name
-                if base_name.startswith("pixi-build-"):
-                    # On Windows, expect .exe extension; on others, no extension
-                    if is_windows and base_name.endswith(".exe"):
-                        backend_executables.append(file_name)
-                    elif not is_windows and not base_name.endswith(".exe") and "." not in base_name:
-                        backend_executables.append(file_name)
-
-            if not backend_executables:
-                console.print("[red]Could not find any pixi-build-* executables in archive")
-                raise FileNotFoundError(
-                    f"Could not find any pixi-build-* executables in archive. Archive contents: {file_list}"
-                )
-
-            console.print(f"[blue]Found {len(backend_executables)} backend executable(s)")
-
-            # Extract all executables
-            for executable in backend_executables:
-                final_path = output_dir / Path(executable).name
-                if final_path.exists():
-                    if final_path.is_dir():
-                        shutil.rmtree(final_path)
-                    else:
-                        final_path.unlink()
-
-                zip_ref.extract(executable, output_dir)
-                extracted_path = output_dir / executable
+                if file_name.endswith("repodata.json"):
+                    some_repodata_file = True
+                    break
 
-                if extracted_path != final_path:
-                    extracted_path.rename(final_path)
+            if not some_repodata_file:
+                console.print("[red]Could not locate a channel directory inside the artifact.")
+                raise FileNotFoundError("Could not locate a channel directory inside the artifact.")
 
-                # Make executable on Unix systems
-                if not sys.platform.startswith("win"):
-                    final_path.chmod(0o755)
+            console.print("[blue]Detected backend channel artifact")
+            final_channel_path = output_dir / "pixi-build-backends"
+            if final_channel_path.exists():
+                console.print(f"[yellow]Removing existing channel at {final_channel_path}")
+                shutil.rmtree(final_channel_path)
 
-                console.print(f"[green]Extracted executable: {final_path}")
+            final_channel_path.parent.mkdir(parents=True, exist_ok=True)
+            zip_ref.extractall(final_channel_path)
 
+            console.print(f"[green]Channel is ready at: {final_channel_path}")
         else:
             raise ValueError(f"Unsupported repository: {repo}")