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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| use std::ffi::OsStr; | ||
| use walkdir::WalkDir; | ||
|
|
||
| use std::fs::File; | ||
| use std::io::prelude::*; | ||
|
|
||
| // The maximum length allowed for stderr files. | ||
| // | ||
| // We limit this because small files are easier to deal with than bigger files. | ||
| const LIMIT: usize = 320; | ||
|
|
||
| pub fn check() { | ||
| let stderr_files = stderr_files(); | ||
| let exceeding_files = exceeding_stderr_files(stderr_files).collect::<Vec<String>>(); | ||
|
|
||
| if !exceeding_files.is_empty() { | ||
| eprintln!("Error: stderr files exceeding limit of {} lines:", LIMIT); | ||
| for path in exceeding_files { | ||
| println!("{}", path); | ||
| } | ||
| std::process::exit(1); | ||
| } | ||
| } | ||
|
|
||
| fn exceeding_stderr_files(files: impl Iterator<Item = walkdir::DirEntry>) -> impl Iterator<Item = String> { | ||
| files | ||
| .filter_map(|file| { | ||
| let path = file.path().to_str().expect("Could not convert path to str").to_string(); | ||
| let linecount = count_linenumbers(&path); | ||
| if linecount > LIMIT { | ||
| Some(path) | ||
| } else { | ||
| None | ||
| } | ||
| }) | ||
| } | ||
|
|
||
| fn stderr_files() -> impl Iterator<Item = walkdir::DirEntry> { | ||
| // We use `WalkDir` instead of `fs::read_dir` here in order to recurse into subdirectories. | ||
| WalkDir::new("../tests/ui") | ||
| .into_iter() | ||
| .filter_map(std::result::Result::ok) | ||
| .filter(|f| f.path().extension() == Some(OsStr::new("stderr"))) | ||
| } | ||
|
|
||
| fn count_linenumbers(filepath: &str) -> usize { | ||
| if let Ok(mut file) = File::open(filepath) { | ||
| let mut content = String::new(); | ||
| file.read_to_string(&mut content).expect("Failed to read file?"); | ||
| content.lines().count() | ||
| } else { | ||
| 0 | ||
| } | ||
| } |
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