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Reduce features used on remote filesystems

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This attempts to detect remote filesystems on Linux using the
/proc/self/mountinfo file and checking the filesystem against a
hardcoded list of remote filesystems. Remote filesystems will not
thumbnail, read file data to determine mime types, or calculate
directory sizes.
This commit is contained in:
Jeremy Soller 2025-04-29 14:42:23 -06:00
parent 8ced8b0551
commit dd98622cfa
6 changed files with 372 additions and 243 deletions
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26
src/mime_icon.rs
View file

@ -3,7 +3,7 @@
use cosmic::widget::icon;
use mime_guess::Mime;
use once_cell::sync::Lazy;
use std::{collections::HashMap, path::Path, sync::Mutex};
use std::{collections::HashMap, fs, path::Path, sync::Mutex};
pub const FALLBACK_MIME_ICON: &str = "text-x-generic";
@ -50,14 +50,26 @@ impl MimeIconCache {
}
static MIME_ICON_CACHE: Lazy<Mutex<MimeIconCache>> = Lazy::new(|| Mutex::new(MimeIconCache::new()));
pub fn mime_for_path<P: AsRef<Path>>(path: P) -> Mime {
pub fn mime_for_path<P: AsRef<Path>>(
path: P,
metadata_opt: Option<&fs::Metadata>,
remote: bool,
) -> Mime {
let path = path.as_ref();
let mime_icon_cache = MIME_ICON_CACHE.lock().unwrap();
// Try the shared mime info cache first
let guess = mime_icon_cache
.shared_mime_info
.guess_mime_type()
.path(&path)
.guess();
let mut gb = mime_icon_cache.shared_mime_info.guess_mime_type();
if remote {
if let Some(file_name) = path.file_name().and_then(|x| x.to_str()) {
gb.file_name(file_name);
}
} else {
gb.path(&path);
}
if let Some(metadata) = metadata_opt {
gb.metadata(metadata.clone());
}
let guess = gb.guess();
if guess.uncertain() {
// If uncertain, try mime_guess. This could happen on platforms without shared-mime-info
mime_guess::from_path(&path).first_or_octet_stream()