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rummage provides a simple and opinionated way to collect a reasonably
comprehensive set of compile time and runtime environment information, and emit
it in structured tracing events.
```rust fn main() { tracingsubscriber::fmt() .json() .withmax_level(tracing::Level::DEBUG) .init();
// Collect the default info set, plus the three named environment variables
let info = rummage::info!().with_envvars(["RUST_LOG", "HOME", "PWD"]);
// Emit the gathered info as a set of structured log messages
info.log_debug();
} ```
Which emits something like the following (formatted with
jq for readability):
json
{
"timestamp": "2023-03-15T23:14:00.634339Z",
"level": "DEBUG",
"fields": {
"message": "Crate information:",
"git_commit_hash": "3acb2d157c80c720a306e1ea11c5d026167cfeda",
"git_repo_dirty": true,
"crate_name": "rummage_demo",
"crate_version": "0.1.0",
"bin_name": "rummage-demo"
},
"target": "rummage"
}
{
"timestamp": "2023-03-15T23:14:00.634413Z",
"level": "DEBUG",
"fields": {
"message": "Cargo target information:",
"profile": "debug",
"host": "x86_64-unknown-linux-gnu",
"target": "x86_64-unknown-linux-gnu",
"family": "unix",
"os": "linux",
"arch": "x86_64",
"pointer_width": "64",
"endian": "little",
"features": "fxsr,sse,sse2"
},
"target": "rummage"
}
{
"timestamp": "2023-03-15T23:14:00.634437Z",
"level": "DEBUG",
"fields": {
"message": "Rustc information:",
"rustc_semver": "1.68.0",
"commit_hash": "2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74",
"commit_date": "2023-03-06",
"llvm_version": "15.0"
},
"target": "rummage"
}
{
"timestamp": "2023-03-15T23:14:00.634451Z",
"level": "DEBUG",
"fields": {
"message": "System information:",
"hostname": "DESKTOP-0E64KFA",
"os": "Linux 5.10.102.1-microsoft-standard-WSL2",
"linux_distro": "Ubuntu 22.04.1 LTS",
"cpu_vendor": "AuthenticAMD",
"cpu_brand_string": "AMD Ryzen 9 3950X 16-Core Processor"
},
"target": "rummage"
}
{
"timestamp": "2023-03-15T23:14:00.634469Z",
"level": "DEBUG",
"fields": {
"message": "Command line args:",
"args": "[\"target/debug/rummage-demo\", \"--foo=10\", \"--bar\", \"apple\"]"
},
"target": "rummage"
}
{
"timestamp": "2023-03-15T23:14:00.634484Z",
"level": "DEBUG",
"fields": {
"message": "Environment variables:",
"args": "{\"RUST_LOG\": Some(\"debug\"), \"HOME\": Some(\"/home/joe\"), \"PWD\": Some(\"/home/joe/dev/rummage-demo\")}"
},
"target": "rummage"
}