use walkdir::{WalkDir, DirEntry}; fn is_hidden(entry: &DirEntry) -> bool { entry.file_name() .to_str() .map(|s| s.starts_with(".")) .unwrap_or(false) } fn main() { // Tell cargo to only run this script if the schema files or this script have changed println!("cargo:rerun-if-changed=schema"); let mut compile_command = ::capnpc::CompilerCommand::new(); // Set parent module of all generated schema files. // i.e. a file "user.capnp" will result in module "schema::user" compile_command.default_parent_module(vec!["schema".into()]); for entry in WalkDir::new("schema") .max_depth(2) .into_iter() .filter_entry(|e| !is_hidden(e)) .filter_map(Result::ok) // Filter all entries that access failed on .filter(|e| !e.file_type().is_dir()) // Filter directories // Filter non-schema files .filter(|e| e.file_name() .to_str() .map(|s| s.ends_with(".capnp")) .unwrap_or(false) ) { println!("Collecting schema file {}", entry.path().display()); compile_command.file(entry.path()); } println!("Compiling schemas..."); compile_command.run().expect("Failed to generate API code"); }