146 lines
4.2 KiB
Rust
146 lines
4.2 KiB
Rust
extern crate glob;
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use std::io;
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use std::path::Path;
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use globset;
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use globset::{Glob, GlobSet, GlobSetBuilder};
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use gitignore;
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pub struct NotificationFilter {
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filters: GlobSet,
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filter_count: usize,
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ignores: GlobSet,
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ignore_files: gitignore::Gitignore,
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}
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#[derive(Debug)]
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pub enum Error {
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Glob(globset::Error),
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Io(io::Error),
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}
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impl NotificationFilter {
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pub fn new(filters: Vec<String>,
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ignores: Vec<String>,
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ignore_files: gitignore::Gitignore)
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-> Result<NotificationFilter, Error> {
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let mut filter_set_builder = GlobSetBuilder::new();
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for f in &filters {
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filter_set_builder.add(try!(Glob::new(f)));
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debug!("Adding filter: \"{}\"", f);
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}
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let mut ignore_set_builder = GlobSetBuilder::new();
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for i in &ignores {
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let mut ignore_path = Path::new(i).to_path_buf();
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if ignore_path.is_relative() && !i.starts_with("*") {
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ignore_path = Path::new("**").join(&ignore_path);
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}
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let pattern = ignore_path.to_str().unwrap();
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ignore_set_builder.add(try!(Glob::new(pattern)));
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debug!("Adding ignore: \"{}\"", pattern);
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}
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let filter_set = try!(filter_set_builder.build());
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let ignore_set = try!(ignore_set_builder.build());
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Ok(NotificationFilter {
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filters: filter_set,
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filter_count: filters.len(),
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ignores: ignore_set,
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ignore_files: ignore_files,
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})
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}
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pub fn is_excluded(&self, path: &Path) -> bool {
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if self.ignores.is_match(path) {
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debug!("Ignoring {:?}: matched ignore filter", path);
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return true;
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}
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if self.filters.is_match(path) {
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return false;
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}
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if self.ignore_files.is_excluded(path) {
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debug!("Ignoring {:?}: matched gitignore file", path);
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return true;
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}
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if self.filter_count > 0 {
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debug!("Ignoring {:?}: did not match any given filters", path);
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}
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self.filter_count > 0
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}
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}
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impl From<io::Error> for Error {
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fn from(err: io::Error) -> Error {
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Error::Io(err)
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}
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}
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impl From<globset::Error> for Error {
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fn from(err: globset::Error) -> Error {
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Error::Glob(err)
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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 gitignore;
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use super::NotificationFilter;
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use std::path::Path;
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#[test]
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fn test_allows_everything_by_default() {
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let filter = NotificationFilter::new(vec![], vec![], gitignore::load(&vec![])).unwrap();
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assert!(!filter.is_excluded(&Path::new("foo")));
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}
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#[test]
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fn test_filename() {
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let filter = NotificationFilter::new(vec![], vec![String::from("test.json")], gitignore::load(&vec![])).unwrap();
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assert!(filter.is_excluded(&Path::new("/path/to/test.json")));
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assert!(filter.is_excluded(&Path::new("test.json")));
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}
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#[test]
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fn test_multiple_filters() {
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let filters = vec![String::from("*.rs"), String::from("*.toml")];
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let filter = NotificationFilter::new(filters, vec![], gitignore::load(&vec![])).unwrap();
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assert!(!filter.is_excluded(&Path::new("hello.rs")));
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assert!(!filter.is_excluded(&Path::new("Cargo.toml")));
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assert!(filter.is_excluded(&Path::new("README.md")));
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}
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#[test]
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fn test_multiple_ignores() {
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let ignores = vec![String::from("*.rs"), String::from("*.toml")];
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let filter = NotificationFilter::new(vec![], ignores, gitignore::load(&vec![])).unwrap();
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assert!(filter.is_excluded(&Path::new("hello.rs")));
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assert!(filter.is_excluded(&Path::new("Cargo.toml")));
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assert!(!filter.is_excluded(&Path::new("README.md")));
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}
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#[test]
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fn test_ignores_take_precedence() {
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let ignores = vec![String::from("*.rs"), String::from("*.toml")];
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let filter = NotificationFilter::new(ignores.clone(), ignores, gitignore::load(&vec![]))
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.unwrap();
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assert!(filter.is_excluded(&Path::new("hello.rs")));
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assert!(filter.is_excluded(&Path::new("Cargo.toml")));
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assert!(filter.is_excluded(&Path::new("README.md")));
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}
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}
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