48 lines
1.4 KiB
Rust
48 lines
1.4 KiB
Rust
#![cfg_attr(test, allow(dead_code))]
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use std::env;
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use std::fs::File;
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use std::io::prelude::*;
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use std::path::PathBuf;
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fn main() {
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let mut args = env::args();
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let program = args.next().expect("Unexpected empty args");
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let out_dir = PathBuf::from(
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env::var_os("GCCTEST_OUT_DIR").expect(&format!("{}: GCCTEST_OUT_DIR not found", program)),
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);
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// Find the first nonexistent candidate file to which the program's args can be written.
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for i in 0.. {
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let candidate = &out_dir.join(format!("out{}", i));
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// If the file exists, commands have already run. Try again.
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if candidate.exists() {
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continue;
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}
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// Create a file and record the args passed to the command.
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let mut f = File::create(candidate).expect(&format!(
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"{}: can't create candidate: {}",
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program,
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candidate.to_string_lossy()
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));
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for arg in args {
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writeln!(f, "{}", arg).expect(&format!(
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"{}: can't write to candidate: {}",
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program,
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candidate.to_string_lossy()
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));
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}
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break;
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}
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// Create a file used by some tests.
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let path = &out_dir.join("libfoo.a");
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File::create(path).expect(&format!(
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"{}: can't create libfoo.a: {}",
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program,
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path.to_string_lossy()
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));
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}
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