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Add a script to verify the Platform Support page is up-to-date.
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,8 @@ | ||
| [package] | ||
| name = "tier-check" | ||
| version = "0.1.0" | ||
| authors = ["Eric Huss"] | ||
| edition = "2018" | ||
| license = "MIT OR Apache-2.0" | ||
|
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||
| [dependencies] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| //! This is a script for validating the platform support page in the rustc book. | ||
| //! | ||
| //! The script takes two arguments, the path to the Platform Support source | ||
| //! page, and the second argument is the path to `rustc`. | ||
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| use std::collections::HashSet; | ||
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| fn main() { | ||
| let mut args = std::env::args().skip(1); | ||
| let src = args.next().expect("expected source file as first argument"); | ||
| let filename = std::path::Path::new(&src).file_name().unwrap().to_str().unwrap(); | ||
| let rustc = args.next().expect("expected rustc as second argument"); | ||
| let output = std::process::Command::new(rustc) | ||
| .arg("--print=target-list") | ||
| .output() | ||
| .expect("rustc should run"); | ||
| if !output.status.success() { | ||
| eprintln!("rustc failed to run"); | ||
| std::process::exit(0); | ||
| } | ||
| let stdout = std::str::from_utf8(&output.stdout).expect("utf8"); | ||
| let target_list: HashSet<_> = stdout.lines().collect(); | ||
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| let doc_targets_md = std::fs::read_to_string(&src).expect("failed to read input source"); | ||
| let doc_targets: HashSet<_> = doc_targets_md | ||
| .lines() | ||
| .filter(|line| line.starts_with('`') && line.contains('|')) | ||
| // These platforms only exist on macos. | ||
| .filter(|line| !line.contains("[^apple]") || cfg!(target_os = "macos")) | ||
| .map(|line| line.split('`').skip(1).next().expect("expected target code span")) | ||
| .collect(); | ||
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| let missing: Vec<_> = target_list.difference(&doc_targets).collect(); | ||
| let extra: Vec<_> = doc_targets.difference(&target_list).collect(); | ||
| for target in &missing { | ||
| eprintln!( | ||
| "error: target `{}` is missing from {}\n\ | ||
| If this is a new target, please add it to {}.", | ||
| target, filename, src | ||
| ); | ||
| } | ||
| for target in &extra { | ||
| eprintln!( | ||
| "error: target `{}` is in {}, but does not appear in the rustc target list\n\ | ||
| If the target has been removed, please edit {} and remove the target.", | ||
| target, filename, src | ||
| ); | ||
| } | ||
| if !missing.is_empty() || !extra.is_empty() { | ||
| std::process::exit(1); | ||
| } | ||
| } |