add cargo example / util to parse a given pyreport into sqlite

examples/parse_pyreport.rs

@@ -0,0 +1,27 @@
+use std::{env, fs::File, path::PathBuf};
+
+use codecov_rs::parsers::pyreport_shim::parse_pyreport;
+
+fn usage_error() -> ! {
+    println!("Usage:");
+    println!("  cargo run --example parse_pyreport -- [REPORT_JSON_PATH] [CHUNKS_PATH] [OUT_PATH]");
+
+    std::process::exit(1);
+}
+
+pub fn main() -> Result<(), std::io::Error> {
+    let args: Vec<String> = env::args().collect();
+
+    if args.len() != 4 {
+        usage_error();
+    }
+
+
+    let report_json_file = File::open(&args[1])?;
+    let chunks_file = File::open(&args[2])?;
+    let out_path = PathBuf::from(&args[3]);
+
+    parse_pyreport(&report_json_file, &chunks_file, out_path)?;
+
+    Ok(())
+}