yazi/yazi-config/src/plugin/fetcher.rs
2026-07-05 18:06:25 +08:00

116 lines
2.8 KiB
Rust

use std::{borrow::Cow, ops::Deref, sync::Arc};
use hashbrown::HashSet;
use mlua::{ExternalError, FromLua, IntoLua, Lua, Table, Value};
use serde::Deserialize;
use yazi_binding::Iter;
use yazi_fs::file::{File, FileRef};
use yazi_shared::{event::Cmd, id::Id};
use crate::{Mixable, Pattern, Priority, Selectable, Selector, YAZI, plugin::{FetcherArc, Fetchers, fetcher_id}};
#[derive(Debug, Deserialize)]
pub struct Fetcher {
#[serde(skip, default = "fetcher_id")]
pub id: Id,
#[serde(skip)]
pub idx: u8,
#[serde(flatten)]
pub selector: Selector,
pub run: Cmd,
#[serde(default)]
pub prio: Priority,
pub group: String,
}
impl Deref for Fetcher {
type Target = Cmd;
fn deref(&self) -> &Self::Target { &self.run }
}
impl Selectable for Fetcher {
fn url_pat(&self) -> Option<&Pattern> { self.selector.url_pat() }
fn mime_pat(&self) -> Option<&Pattern> { self.selector.mime_pat() }
}
impl Mixable for Fetcher {}
// --- Matcher
#[derive(Default)]
pub struct FetcherMatcher<'a> {
pub fetchers: Arc<Vec<FetcherArc>>,
pub id: Id,
pub file: Option<Cow<'a, File>>,
pub mime: Option<Cow<'a, str>>,
pub all: bool,
pub offset: usize,
pub seen: HashSet<String>,
}
impl From<&Fetchers> for FetcherMatcher<'_> {
fn from(fetchers: &Fetchers) -> Self {
Self { fetchers: fetchers.load_full(), all: true, ..Default::default() }
}
}
impl FetcherMatcher<'_> {
pub fn matches(&self, fetcher: &Fetcher) -> bool {
if self.all {
true
} else if self.id != Id::ZERO {
fetcher.id == self.id
} else {
fetcher.match_with(self.file.as_deref(), self.mime.as_deref())
}
}
}
impl Iterator for FetcherMatcher<'_> {
type Item = FetcherArc;
fn next(&mut self) -> Option<Self::Item> {
while let Some(fetcher) = self.fetchers.get(self.offset) {
self.offset += 1;
if !self.matches(fetcher) {
continue;
}
if self.all || self.seen.insert(fetcher.group.clone()) {
return Some(fetcher.clone());
}
}
None
}
}
impl TryFrom<Table> for FetcherMatcher<'static> {
type Error = mlua::Error;
fn try_from(value: Table) -> Result<Self, Self::Error> {
let id: Id = value.raw_get("id").unwrap_or_default();
let file: Option<FileRef> = value.raw_get("file")?;
let mime: Option<String> = value.raw_get("mime")?;
Ok(Self {
fetchers: YAZI.plugin.fetchers.load_full(),
id,
file: file.map(TryInto::try_into).transpose()?,
mime: mime.map(Into::into),
..Default::default()
})
}
}
impl FromLua for FetcherMatcher<'static> {
fn from_lua(value: Value, _: &Lua) -> mlua::Result<Self> {
match value {
Value::Table(t) => t.try_into(),
_ => Err("expected a table of FetcherMatcher".into_lua_err()),
}
}
}
impl IntoLua for FetcherMatcher<'static> {
fn into_lua(self, lua: &Lua) -> mlua::Result<Value> { Iter::new(self, None).into_lua(lua) }
}