Rust: support paths and paths-ignore from the code scanning configuration file

This is done by simply adding the autobuilder from the shared
tree-sitter extractor library.

rust/autobuild/BUILD.bazel

@@ -0,0 +1,19 @@
+load("//misc/bazel:rust.bzl", "codeql_rust_binary")
+load("//misc/bazel/3rdparty/tree_sitter_extractors_deps:defs.bzl", "aliases", "all_crate_deps")
+
+exports_files(["Cargo.toml"])
+
+codeql_rust_binary(
+    name = "autobuild",
+    srcs = glob(["src/**/*.rs"]),
+    aliases = aliases(),
+    proc_macro_deps = all_crate_deps(
+        proc_macro = True,
+    ),
+    visibility = ["//rust:__subpackages__"],
+    deps = all_crate_deps(
+        normal = True,
+    ) + [
+        "//shared/tree-sitter-extractor",
+    ],
+)

rust/autobuild/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "codeql-autobuilder-rust"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+codeql-extractor = { path = "../../shared/tree-sitter-extractor" }

rust/autobuild/src/main.rs

@@ -0,0 +1,13 @@
+use std::path::PathBuf;
+use codeql_extractor::autobuilder;
+
+fn main() -> std::io::Result<()> {
+    let database = std::env::var("CODEQL_EXTRACTOR_RUST_WIP_DATABASE")
+        .expect("CODEQL_EXTRACTOR_RUST_WIP_DATABASE not set");
+
+    autobuilder::Autobuilder::new("rust", PathBuf::from(database))
+        .include_extensions(&[".rs"])
+        .exclude_globs(&["**/.git", "**/tests/**"])
+        .size_limit("5m")
+        .run()
+}