forked from mirrors/gecko-dev
61 lines
1.8 KiB
Rust
61 lines
1.8 KiB
Rust
/// Generating build depfiles from parsed bindings.
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use std::{collections::BTreeSet, path::PathBuf};
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#[derive(Clone, Debug)]
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pub(crate) struct DepfileSpec {
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pub output_module: String,
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pub depfile_path: PathBuf,
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}
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impl DepfileSpec {
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pub fn write(&self, deps: &BTreeSet<Box<str>>) -> std::io::Result<()> {
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std::fs::write(&self.depfile_path, self.to_string(deps))
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}
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fn to_string(&self, deps: &BTreeSet<Box<str>>) -> String {
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// Transforms a string by escaping spaces and backslashes.
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let escape = |s: &str| s.replace('\\', "\\\\").replace(' ', "\\ ");
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let mut buf = format!("{}:", escape(&self.output_module));
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for file in deps {
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buf = format!("{} {}", buf, escape(file));
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}
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buf
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn escaping_depfile() {
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let spec = DepfileSpec {
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output_module: "Mod Name".to_owned(),
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depfile_path: PathBuf::new(),
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};
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let deps: BTreeSet<_> = vec![
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r"/absolute/path".into(),
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r"C:\win\absolute\path".into(),
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r"../relative/path".into(),
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r"..\win\relative\path".into(),
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r"../path/with spaces/in/it".into(),
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r"..\win\path\with spaces\in\it".into(),
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r"path\with/mixed\separators".into(),
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]
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.into_iter()
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.collect();
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assert_eq!(
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spec.to_string(&deps),
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"Mod\\ Name: \
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../path/with\\ spaces/in/it \
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../relative/path \
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..\\\\win\\\\path\\\\with\\ spaces\\\\in\\\\it \
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..\\\\win\\\\relative\\\\path \
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/absolute/path \
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C:\\\\win\\\\absolute\\\\path \
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path\\\\with/mixed\\\\separators"
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);
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}
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}
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