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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use std::path::Path;
use std::path::PathBuf;
use deno_core::anyhow::Context;
use deno_core::error::AnyError;
pub fn expand_globs(paths: Vec<PathBuf>) -> Result<Vec<PathBuf>, AnyError> {
let mut new_paths = vec![];
for path in paths {
let path_str = path.to_string_lossy();
if is_glob_pattern(&path_str) {
let globbed_paths = glob(&path_str)?;
for globbed_path_result in globbed_paths {
new_paths.push(globbed_path_result?);
}
} else {
new_paths.push(path);
}
}
Ok(new_paths)
}
pub fn glob(pattern: &str) -> Result<glob::Paths, AnyError> {
glob::glob_with(&escape_brackets(pattern), match_options())
.with_context(|| format!("Failed to expand glob: \"{}\"", pattern))
}
pub struct GlobPattern(glob::Pattern);
impl GlobPattern {
pub fn new_if_pattern(pattern: &str) -> Result<Option<Self>, AnyError> {
if !is_glob_pattern(pattern) {
return Ok(None);
}
Self::new(pattern).map(Some)
}
pub fn new(pattern: &str) -> Result<Self, AnyError> {
let pattern = glob::Pattern::new(pattern)
.with_context(|| format!("Failed to expand glob: \"{}\"", pattern))?;
Ok(Self(pattern))
}
pub fn matches_path(&self, path: &Path) -> bool {
self.0.matches_path(path)
}
}
pub struct GlobSet(Vec<GlobPattern>);
impl GlobSet {
pub fn new(matchers: Vec<GlobPattern>) -> Self {
Self(matchers)
}
pub fn matches_path(&self, path: &Path) -> bool {
for pattern in &self.0 {
if pattern.matches_path(path) {
return true;
}
}
false
}
}
pub fn is_glob_pattern(path: &str) -> bool {
path.chars().any(|c| matches!(c, '*' | '?'))
}
fn escape_brackets(pattern: &str) -> String {
// Escape brackets - we currently don't support them, because with introduction
// of glob expansion paths like "pages/[id].ts" would suddenly start giving
// wrong results. We might want to revisit that in the future.
pattern.replace('[', "[[]").replace(']', "[]]")
}
fn match_options() -> glob::MatchOptions {
// Matches what `deno_task_shell` does
glob::MatchOptions {
// false because it should work the same way on case insensitive file systems
case_sensitive: false,
// true because it copies what sh does
require_literal_separator: true,
// true because it copies with sh does—these files are considered "hidden"
require_literal_leading_dot: true,
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
pub fn glob_set_matches_path() {
let glob_set = GlobSet::new(vec![
GlobPattern::new("foo/bar").unwrap(),
GlobPattern::new("foo/baz").unwrap(),
]);
assert!(glob_set.matches_path(Path::new("foo/bar")));
assert!(glob_set.matches_path(Path::new("foo/baz")));
assert!(!glob_set.matches_path(Path::new("foo/qux")));
}
}
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