marine/tools/repl/src/logger.rs
2021-06-16 09:37:45 +03:00

57 lines
2.0 KiB
Rust

/*
* Copyright 2020 Fluence Labs Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
use marine_rs_sdk_main::WASM_LOG_ENV_NAME;
use std::io::Write;
use std::env::var;
const IT_MODULE_PATH: &str = "wasmer_interface_types_fl";
const RUST_LOG_ENV_NAME: &str = "RUST_LOG";
pub(super) fn init_logger() {
use log::LevelFilter::Info;
match (var(RUST_LOG_ENV_NAME), var(WASM_LOG_ENV_NAME)) {
(Ok(_), _) => {}
(Err(_), Ok(wasm_log_env)) if !wasm_log_env.starts_with("off") => {
std::env::set_var(RUST_LOG_ENV_NAME, "trace")
}
_ => return,
};
env_logger::builder()
.format(|buf, record| {
match record.module_path() {
Some(module_path) if module_path.starts_with(IT_MODULE_PATH) => {
writeln!(buf, "[host] {}", record.args())
}
// due to the log_utf8_string implementation,
// a log message from a Wasm module always has module path
None => writeln!(buf, "[host] {}", record.args()),
Some(module_path) => writeln!(buf, "[{}] {}", module_path, record.args()),
}
})
// set a default level Info for Wasmer components
.filter(Some("cranelift_codegen"), Info)
.filter(Some("wasmer_wasi"), Info)
//.filter(Some(WIT_MODULE_PATH), Info)
// the same for rustyline and marine
.filter(Some("rustyline"), Info)
.filter(Some("marine"), Info)
.init();
}