cb6f1a5a4e
cargo unifies features per target, so a target-specific line that restores eureka-state's default features left a Linux graph clean while a Windows build compiled the huginn CLI's parser. The test asks cargo tree for --target all, for the control and for mind-body. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
30 lines
1.7 KiB
Rust
30 lines
1.7 KiB
Rust
//! The huginn CLI's argument parser is not in mind-body's build. `eureka-state`
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//! carries it behind its default `cli` feature; mind-body takes the client
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//! core only, so its organs and the `mind-control` binary compile none of it.
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//!
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//! The graph is read for every target (`--target all`), not the host's: cargo
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//! unifies features per target, so a `[target.'cfg(windows)'.dependencies]` line
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//! that restores the default features would put the parser into a Windows build
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//! and leave a Linux graph clean.
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use std::process::Command;
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/// The crates `package` pulls in through normal and build edges, on any target,
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/// one name per line.
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fn dependencies_of(package: &str) -> Vec<String> {
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let output = Command::new(env!("CARGO"))
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.current_dir(env!("CARGO_MANIFEST_DIR"))
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.args(["tree", "--locked", "-p", package, "-e", "normal,build", "--target", "all", "--prefix", "none"])
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.output()
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.expect("cargo tree runs");
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assert!(output.status.success(), "cargo tree -p {package} failed: {}", String::from_utf8_lossy(&output.stderr));
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String::from_utf8(output.stdout).unwrap().lines().filter_map(|line| line.split_whitespace().next()).map(str::to_string).collect()
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}
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#[test]
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fn clap_is_not_in_mind_bodys_graph_on_any_target_though_the_cli_crate_has_it() {
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// The control: with its default features the client crate does carry clap, so
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// an empty answer for mind-body is the dependency's doing and not a blind probe.
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assert!(dependencies_of("eureka-state").iter().any(|name| name == "clap"), "eureka-state's default build has clap");
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assert!(!dependencies_of("mind-body").iter().any(|name| name == "clap"), "mind-body compiles the huginn CLI's parser on some target");
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}
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