8075c98745
Adds missing test coverage for rustdoc's `--test-builder` option. The existing test only covered the error case (non-executable builder). This PR adds: - A custom test builder that logs arguments and forwards to rustc - A test verifying that `--test-builder` successfully invokes the custom builder with rustc-style arguments - Improved comments explaining both the error and success test scenarios The test validates that custom builders can properly intercept and handle doctest compilation. Signed-off-by: Osama Abdelkader <osama.abdelkader@gmail.com>
23 lines
779 B
Rust
23 lines
779 B
Rust
use std::ffi::OsString;
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use std::path::PathBuf;
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use std::process::{self, Command};
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use std::{env, fs};
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fn main() {
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let args: Vec<OsString> = env::args_os().collect();
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let log_path = env::var_os("BUILDER_LOG").map(PathBuf::from).expect("BUILDER_LOG must be set");
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let real_rustc = env::var_os("REAL_RUSTC").expect("REAL_RUSTC must be set");
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let log_contents =
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args.iter().skip(1).map(|arg| arg.to_string_lossy()).collect::<Vec<_>>().join("\n");
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fs::write(&log_path, log_contents).expect("failed to write builder log");
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let status = Command::new(real_rustc)
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.args(args.iter().skip(1))
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.status()
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.expect("failed to invoke real rustc");
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if !status.success() {
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process::exit(status.code().unwrap_or(1));
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}
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}
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