Files

56 lines
2.5 KiB
Rust

//! `cargo xtask assets`: every non-code asset must be attributed in `ATTRIBUTION.md`.
//!
//! Scans all git-tracked (and untracked, not ignored) files with an asset extension, plus
//! everything under `assets/`, `docs/images/` and `examples/`, and fails if a path is not listed
//! as `` `path` `` in ATTRIBUTION.md. See the asset policy in AGENTS.md.
use std::path::Path;
use std::process::Command;
const ASSET_EXT: &[&str] = &[
"png", "jpg", "jpeg", "gif", "webp", "bmp", "tif", "tiff", "ico", "icns", "svg", "pdf", "ai", "eps", "psd", "icc", "icm", "ttf", "otf", "woff",
"woff2", "ase", "indd", "idml", "aco", "abr", "docx", "odt", "rtf", "mp4", "wav", "mp3",
];
const ASSET_DIRS: &[&str] = &["assets/", "docs/images/", "examples/"];
pub fn is_asset(path: &str) -> bool {
let ext = Path::new(path).extension().and_then(|e| e.to_str()).map(str::to_ascii_lowercase).unwrap_or_default();
ASSET_DIRS.iter().any(|d| path.starts_with(d)) || ASSET_EXT.contains(&ext.as_str())
}
/// Paths that need an ATTRIBUTION.md entry but lack one.
pub fn missing(files: &[String], assets_md: &str) -> Vec<String> {
files.iter().filter(|f| is_asset(f) && !assets_md.contains(&format!("`{f}`"))).cloned().collect()
}
pub fn run(root: &Path) -> Result<(), String> {
let out = Command::new("git")
.current_dir(root)
.args(["ls-files", "--cached", "--others", "--exclude-standard"])
.output()
.map_err(|e| format!("git ls-files: {e}"))?;
let files: Vec<String> = String::from_utf8_lossy(&out.stdout).lines().filter(|l| root.join(l).exists()).map(str::to_owned).collect();
let md = std::fs::read_to_string(root.join("ATTRIBUTION.md")).map_err(|e| format!("ATTRIBUTION.md: {e}"))?;
let miss = missing(&files, &md);
if miss.is_empty() {
println!("assets: all {} asset files attributed in ATTRIBUTION.md", files.iter().filter(|f| is_asset(f)).count());
Ok(())
} else {
Err(format!("{} asset file(s) lack an ATTRIBUTION.md entry (author, source, licence):\n {}", miss.len(), miss.join("\n ")))
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn detects_unattributed_assets() {
let files = vec!["assets/icons/a.svg".to_string(), "crates/x/src/lib.rs".into(), "docs/images/b.png".into(), "tests/fixture.png".into()];
let md = "| `assets/icons/a.svg` | me | here | MIT |";
assert_eq!(missing(&files, md), vec!["docs/images/b.png".to_string(), "tests/fixture.png".into()]);
assert!(!is_asset("crates/x/src/lib.rs"));
assert!(is_asset("assets/fonts/OFL.txt"));
}
}