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|
use crate::fs as deno_fs;
use std::ffi::OsStr;
use std::fs;
use std::path::Path;
use std::path::PathBuf;
use url::Url;
#[derive(Clone)]
pub struct DiskCache {
pub location: PathBuf,
}
impl DiskCache {
pub fn new(location: &Path) -> Self {
// TODO: ensure that 'location' is a directory
Self {
location: location.to_owned(),
}
}
// TODO(bartlomieju) this method is not working properly for Windows paths,
// Example: file:///C:/deno/js/unit_test_runner.ts
// would produce: C:deno\\js\\unit_test_runner.ts
// it should produce: file\deno\js\unit_test_runner.ts
pub fn get_cache_filename(self: &Self, url: &Url) -> PathBuf {
let mut out = PathBuf::new();
let scheme = url.scheme();
out.push(scheme);
match scheme {
"http" | "https" => {
let host = url.host_str().unwrap();
let host_port = match url.port() {
// Windows doesn't support ":" in filenames, so we represent port using a
// special string.
Some(port) => format!("{}_PORT{}", host, port),
None => host.to_string(),
};
out.push(host_port);
}
_ => {}
};
for path_seg in url.path_segments().unwrap() {
out.push(path_seg);
}
out
}
pub fn get_cache_filename_with_extension(
self: &Self,
url: &Url,
extension: &str,
) -> PathBuf {
let base = self.get_cache_filename(url);
match base.extension() {
None => base.with_extension(extension),
Some(ext) => {
let original_extension = OsStr::to_str(ext).unwrap();
let final_extension = format!("{}.{}", original_extension, extension);
base.with_extension(final_extension)
}
}
}
pub fn get(self: &Self, filename: &Path) -> std::io::Result<Vec<u8>> {
let path = self.location.join(filename);
fs::read(&path)
}
pub fn set(self: &Self, filename: &Path, data: &[u8]) -> std::io::Result<()> {
let path = self.location.join(filename);
match path.parent() {
Some(ref parent) => fs::create_dir_all(parent),
None => Ok(()),
}?;
deno_fs::write_file(&path, data, 0o666)
}
pub fn remove(self: &Self, filename: &Path) -> std::io::Result<()> {
let path = self.location.join(filename);
fs::remove_file(path)
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_get_cache_filename() {
let cache = DiskCache::new(&PathBuf::from("foo"));
let test_cases = [
(
"http://deno.land/std/http/file_server.ts",
"http/deno.land/std/http/file_server.ts",
),
(
"http://localhost:8000/std/http/file_server.ts",
"http/localhost_PORT8000/std/http/file_server.ts",
),
(
"https://deno.land/std/http/file_server.ts",
"https/deno.land/std/http/file_server.ts",
),
(
"file:///std/http/file_server.ts",
"file/std/http/file_server.ts",
),
];
for test_case in &test_cases {
assert_eq!(
cache.get_cache_filename(&Url::parse(test_case.0).unwrap()),
PathBuf::from(test_case.1)
)
}
}
#[test]
fn test_get_cache_filename_with_extension() {
let cache = DiskCache::new(&PathBuf::from("foo"));
let test_cases = [
(
"http://deno.land/std/http/file_server.ts",
"js",
"http/deno.land/std/http/file_server.ts.js",
),
(
"file:///std/http/file_server",
"js",
"file/std/http/file_server.js",
),
(
"http://deno.land/std/http/file_server.ts",
"js.map",
"http/deno.land/std/http/file_server.ts.js.map",
),
];
for test_case in &test_cases {
assert_eq!(
cache.get_cache_filename_with_extension(
&Url::parse(test_case.0).unwrap(),
test_case.1
),
PathBuf::from(test_case.2)
)
}
}
}
|
