f648f17ec3
Use the faster and newer MiMalloc memory allocator for all endpoints in the workspace. Change-Id: Ic60237284ed168e46ec6e8f28e2710bae4385c6f Reviewed-on: https://cl.tvl.fyi/c/depot/+/12149 Tested-by: BuildkiteCI Reviewed-by: aspen <root@gws.fyi>
47 lines
1.5 KiB
Rust
47 lines
1.5 KiB
Rust
use std::{collections::BTreeMap, io::Read};
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use nix_compat::derivation::Derivation;
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use serde_json::json;
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use mimalloc::MiMalloc;
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#[global_allocator]
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static GLOBAL: MiMalloc = MiMalloc;
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/// construct a serde_json::Value from a Derivation.
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/// Some environment values can be non-valid UTF-8 strings.
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/// `serde_json` prints them out really unreadable.
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/// This is a tool to print A-Terms in a more readable fashion, so we brutally
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/// use the [std::string::ToString] implementation of [bstr::BString] to get
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/// a UTF-8 string (replacing invalid characters with the Unicode replacement
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/// codepoint).
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fn build_serde_json_value(drv: Derivation) -> serde_json::Value {
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json!({
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"args": drv.arguments,
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"builder": drv.builder,
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"env": drv.environment.into_iter().map(|(k,v)| (k, v.to_string())).collect::<BTreeMap<String, String>>(),
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"inputDrvs": drv.input_derivations,
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"inputSrcs": drv.input_sources,
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"outputs": drv.outputs,
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"system": drv.system,
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})
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}
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fn main() {
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// read A-Term from stdin
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let mut buf = Vec::new();
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std::io::stdin()
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.read_to_end(&mut buf)
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.expect("failed to read from stdin");
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match Derivation::from_aterm_bytes(&buf) {
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Ok(drv) => {
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println!(
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"{}",
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serde_json::to_string_pretty(&build_serde_json_value(drv))
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.expect("unable to serialize")
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);
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}
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Err(e) => eprintln!("unable to parse derivation: {:#?}", e),
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}
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}
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