Rust: Bulk model generator

.gitignore

@@ -62,6 +62,7 @@ node_modules/
 
 # Temporary folders for working with generated models
 .model-temp
+/mad-generation-build
 
 # bazel-built in-tree extractor packs
 /*/extractor-pack

Cargo.toml

@@ -10,6 +10,7 @@ members = [
     "rust/ast-generator",
     "rust/autobuild",
 ]
+exclude = ["mad-generation-build"]
 
 [patch.crates-io]
 # patch for build script bug preventing bazel build

misc/scripts/models-as-data/rust_bulk_generate_mad.py

@@ -0,0 +1,335 @@
+"""
+Experimental script for bulk generation of MaD models based on a list of projects.
+
+Currently the script only targets Rust.
+"""
+
+import os.path
+import subprocess
+import sys
+from typing import NotRequired, TypedDict, List
+from concurrent.futures import ThreadPoolExecutor, as_completed
+import time
+
+import generate_mad as mad
+
+gitroot = (
+    subprocess.check_output(["git", "rev-parse", "--show-toplevel"])
+    .decode("utf-8")
+    .strip()
+)
+build_dir = os.path.join(gitroot, "mad-generation-build")
+
+
+def path_to_mad_directory(language: str, name: str) -> str:
+    return os.path.join(gitroot, f"{language}/ql/lib/ext/generated/{name}")
+
+
+# A project to generate models for
+class Project(TypedDict):
+    """
+    Type definition for Rust projects to model.
+
+    Attributes:
+        name: The name of the project
+        git_repo: URL to the git repository
+        git_tag: Optional Git tag to check out
+    """
+
+    name: str
+    git_repo: str
+    git_tag: NotRequired[str]
+
+
+# List of Rust projects to generate models for.
+projects: List[Project] = [
+    {
+        "name": "libc",
+        "git_repo": "https://github.com/rust-lang/libc",
+        "git_tag": "0.2.172",
+    },
+    {
+        "name": "log",
+        "git_repo": "https://github.com/rust-lang/log",
+        "git_tag": "0.4.27",
+    },
+    {
+        "name": "memchr",
+        "git_repo": "https://github.com/BurntSushi/memchr",
+        "git_tag": "2.7.4",
+    },
+    {
+        "name": "once_cell",
+        "git_repo": "https://github.com/matklad/once_cell",
+        "git_tag": "v1.21.3",
+    },
+    {
+        "name": "rand",
+        "git_repo": "https://github.com/rust-random/rand",
+        "git_tag": "0.9.1",
+    },
+    {
+        "name": "smallvec",
+        "git_repo": "https://github.com/servo/rust-smallvec",
+        "git_tag": "v1.15.0",
+    },
+    {
+        "name": "serde",
+        "git_repo": "https://github.com/serde-rs/serde",
+        "git_tag": "v1.0.219",
+    },
+    {
+        "name": "tokio",
+        "git_repo": "https://github.com/tokio-rs/tokio",
+        "git_tag": "tokio-1.45.0",
+    },
+    {
+        "name": "reqwest",
+        "git_repo": "https://github.com/seanmonstar/reqwest",
+        "git_tag": "v0.12.15",
+    },
+    {
+        "name": "rocket",
+        "git_repo": "https://github.com/SergioBenitez/Rocket",
+        "git_tag": "v0.5.1",
+    },
+    {
+        "name": "actix-web",
+        "git_repo": "https://github.com/actix/actix-web",
+        "git_tag": "web-v4.11.0",
+    },
+    {
+        "name": "hyper",
+        "git_repo": "https://github.com/hyperium/hyper",
+        "git_tag": "v1.6.0",
+    },
+    {
+        "name": "clap",
+        "git_repo": "https://github.com/clap-rs/clap",
+        "git_tag": "v4.5.38",
+    },
+]
+
+
+def clone_project(project: Project) -> str:
+    """
+    Shallow clone a project into the build directory.
+
+    Args:
+        project: A dictionary containing project information with 'name', 'git_repo', and optional 'git_tag' keys.
+
+    Returns:
+        The path to the cloned project directory.
+    """
+    name = project["name"]
+    repo_url = project["git_repo"]
+    git_tag = project.get("git_tag")
+
+    # Determine target directory
+    target_dir = os.path.join(build_dir, name)
+
+    # Clone only if directory doesn't already exist
+    if not os.path.exists(target_dir):
+        if git_tag:
+            print(f"Cloning {name} from {repo_url} at tag {git_tag}")
+        else:
+            print(f"Cloning {name} from {repo_url}")
+
+        subprocess.check_call(
+            [
+                "git",
+                "clone",
+                "--quiet",
+                "--depth",
+                "1",  # Shallow clone
+                *(
+                    ["--branch", git_tag] if git_tag else []
+                ),  # Add branch if tag is provided
+                repo_url,
+                target_dir,
+            ]
+        )
+        print(f"Completed cloning {name}")
+    else:
+        print(f"Skipping cloning {name} as it already exists at {target_dir}")
+
+    return target_dir
+
+
+def clone_projects(projects: List[Project]) -> List[tuple[Project, str]]:
+    """
+    Clone all projects in parallel.
+
+    Args:
+        projects: List of projects to clone
+
+    Returns:
+        List of (project, project_dir) pairs in the same order as the input projects
+    """
+    start_time = time.time()
+    max_workers = min(8, len(projects))  # Use at most 8 threads
+    project_dirs_map = {}  # Map to store results by project name
+
+    with ThreadPoolExecutor(max_workers=max_workers) as executor:
+        # Start cloning tasks and keep track of them
+        future_to_project = {
+            executor.submit(clone_project, project): project for project in projects
+        }
+
+        # Process results as they complete
+        for future in as_completed(future_to_project):
+            project = future_to_project[future]
+            try:
+                project_dir = future.result()
+                project_dirs_map[project["name"]] = (project, project_dir)
+            except Exception as e:
+                print(f"ERROR: Failed to clone {project['name']}: {e}")
+
+    if len(project_dirs_map) != len(projects):
+        failed_projects = [
+            project["name"]
+            for project in projects
+            if project["name"] not in project_dirs_map
+        ]
+        print(
+            f"ERROR: Only {len(project_dirs_map)} out of {len(projects)} projects were cloned successfully. Failed projects: {', '.join(failed_projects)}"
+        )
+        sys.exit(1)
+
+    project_dirs = [project_dirs_map[project["name"]] for project in projects]
+
+    clone_time = time.time() - start_time
+    print(f"Cloning completed in {clone_time:.2f} seconds")
+    return project_dirs
+
+
+def build_database(project: Project, project_dir: str) -> str | None:
+    """
+    Build a CodeQL database for a project.
+
+    Args:
+        project: A dictionary containing project information with 'name' and 'git_repo' keys.
+        project_dir: The directory containing the project source code.
+
+    Returns:
+        The path to the created database directory.
+    """
+    name = project["name"]
+
+    # Create database directory path
+    database_dir = os.path.join(build_dir, f"{name}-db")
+
+    # Only build the database if it doesn't already exist
+    if not os.path.exists(database_dir):
+        print(f"Building CodeQL database for {name}...")
+        try:
+            subprocess.check_call(
+                [
+                    "codeql",
+                    "database",
+                    "create",
+                    "--language=rust",
+                    "--source-root=" + project_dir,
+                    "--overwrite",
+                    "-O",
+                    "cargo_features='*'",
+                    "--",
+                    database_dir,
+                ]
+            )
+            print(f"Successfully created database at {database_dir}")
+        except subprocess.CalledProcessError as e:
+            print(f"Failed to create database for {name}: {e}")
+            return None
+    else:
+        print(
+            f"Skipping database creation for {name} as it already exists at {database_dir}"
+        )
+
+    return database_dir
+
+
+def generate_models(project: Project, database_dir: str) -> None:
+    """
+    Generate models for a project.
+
+    Args:
+        project: A dictionary containing project information with 'name' and 'git_repo' keys.
+        project_dir: The directory containing the project source code.
+    """
+    name = project["name"]
+
+    generator = mad.Generator("rust")
+    generator.generateSinks = True
+    generator.generateSources = True
+    generator.generateSummaries = True
+    generator.setenvironment(database=database_dir, folder=name)
+    generator.run()
+
+
+def main() -> None:
+    """
+    Process all projects in three distinct phases:
+    1. Clone projects (in parallel)
+    2. Build databases for projects
+    3. Generate models for successful database builds
+    """
+
+    # Create build directory if it doesn't exist
+    if not os.path.exists(build_dir):
+        os.makedirs(build_dir)
+
+    # Check if any of the MaD directories contain working directory changes in git
+    for project in projects:
+        mad_dir = path_to_mad_directory("rust", project["name"])
+        if os.path.exists(mad_dir):
+            git_status_output = subprocess.check_output(
+                ["git", "status", "-s", mad_dir], text=True
+            ).strip()
+            if git_status_output:
+                print(
+                    f"""ERROR: Working directory changes detected in {mad_dir}.
+
+Before generating new models, the existing models are deleted.
+
+To avoid loss of data, please commit your changes."""
+                )
+                sys.exit(1)
+
+    # Phase 1: Clone projects in parallel
+    print("=== Phase 1: Cloning projects ===")
+    project_dirs = clone_projects(projects)
+
+    # Phase 2: Build databases for all projects
+    print("\n=== Phase 2: Building databases ===")
+    database_results = [
+        (project, build_database(project, project_dir))
+        for project, project_dir in project_dirs
+    ]
+
+    # Phase 3: Generate models for all projects
+    print("\n=== Phase 3: Generating models ===")
+
+    failed_builds = [
+        project["name"] for project, db_dir in database_results if db_dir is None
+    ]
+    if failed_builds:
+        print(
+            f"ERROR: {len(failed_builds)} database builds failed: {', '.join(failed_builds)}"
+        )
+        sys.exit(1)
+
+    # Delete the MaD directory for each project
+    for project, database_dir in database_results:
+        mad_dir = path_to_mad_directory("rust", project["name"])
+        if os.path.exists(mad_dir):
+            print(f"Deleting existing MaD directory at {mad_dir}")
+            subprocess.check_call(["rm", "-rf", mad_dir])
+
+    for project, database_dir in database_results:
+        if database_dir is not None:
+            generate_models(project, database_dir)
+
+
+if __name__ == "__main__":
+    main()