feat: true custom mime fetcher support - using user rules even duri…

…ng open or in watcher (#1976)

yazi-config/Cargo.toml

@@ -22,6 +22,7 @@ ratatui   = { workspace = true }
 regex     = { workspace = true }
 serde     = { workspace = true }
 toml      = { version = "0.8.19", features = [ "preserve_order" ] }
+tracing   = { workspace = true }
 validator = { version = "0.19.0", features = [ "derive" ] }
 
 [target.'cfg(target_os = "macos")'.dependencies]

yazi-config/preset/keymap.toml

@@ -79,8 +79,8 @@ keymap = [
 	{ on = ";",         run = "shell --interactive",         desc = "Run a shell command" },
 	{ on = ":",         run = "shell --block --interactive", desc = "Run a shell command (block until finishes)" },
 	{ on = ".",         run = "hidden toggle",               desc = "Toggle the visibility of hidden files" },
-	{ on = "s",         run = "search fd",                   desc = "Search files by name via fd" },
-	{ on = "S",         run = "search rg",                   desc = "Search files by content via ripgrep" },
+	{ on = "s",         run = "search --via=fd",             desc = "Search files by name via fd" },
+	{ on = "S",         run = "search --via=rg",             desc = "Search files by content via ripgrep" },
 	{ on = "<C-s>",     run = "escape --search",             desc = "Cancel the ongoing search" },
 	{ on = "z",         run = "plugin zoxide",               desc = "Jump to a directory via zoxide" },
 	{ on = "Z",         run = "plugin fzf",                  desc = "Jump to a file/directory via fzf" },

yazi-config/src/plugin/plugin.rs

@@ -2,6 +2,8 @@ use std::{collections::HashSet, path::Path, str::FromStr};
 
 use anyhow::Context;
 use serde::{Deserialize, Deserializer};
+use tracing::warn;
+use yazi_shared::fs::File;
 
 use super::{Fetcher, Preloader, Previewer, Spotter};
 use crate::{Preset, plugin::MAX_PREWORKERS};
@@ -30,6 +32,27 @@ impl Plugin {
 		})
 	}
 
+	pub fn mime_fetchers(&self, files: Vec<File>) -> impl Iterator<Item = (&Fetcher, Vec<File>)> {
+		let mut tasks: [Vec<_>; MAX_PREWORKERS as usize] = Default::default();
+		for f in files {
+			let factors = |s: &str| match s {
+				"dummy" => f.cha.is_dummy(),
+				_ => false,
+			};
+
+			let found = self.fetchers.iter().find(|&g| g.id == "mime" && g.matches(&f.url, "", factors));
+			if let Some(g) = found {
+				tasks[g.idx as usize].push(f);
+			} else {
+				warn!("No mime fetcher for {f:?}");
+			}
+		}
+
+		tasks.into_iter().enumerate().filter_map(|(i, tasks)| {
+			if tasks.is_empty() { None } else { Some((&self.fetchers[i], tasks)) }
+		})
+	}
+
 	#[inline]
 	pub fn fetchers_mask(&self) -> u32 {
 		self.fetchers.iter().fold(0, |n, f| if f.mime.is_some() { n } else { n | 1 << f.idx as u32 })

yazi-core/src/manager/commands/open.rs

@@ -2,12 +2,12 @@ use std::{borrow::Cow, ffi::OsString};
 
 use tracing::error;
 use yazi_boot::ARGS;
-use yazi_config::{OPEN, popup::PickCfg};
+use yazi_config::{OPEN, PLUGIN, popup::PickCfg};
 use yazi_fs::Folder;
 use yazi_macro::emit;
 use yazi_plugin::isolate;
 use yazi_proxy::{ManagerProxy, TasksProxy, options::OpenDoOpt};
-use yazi_shared::{MIME_DIR, event::{Cmd, CmdCow, EventQuit}, fs::{File, Url}};
+use yazi_shared::{MIME_DIR, event::{CmdCow, EventQuit}, fs::{File, Url}};
 
 use crate::{manager::Manager, tasks::Tasks};
 
@@ -65,8 +65,10 @@ impl Manager {
 			}
 
 			done.extend(files.iter().map(|f| (f.url_owned(), String::new())));
-			if let Err(e) = isolate::fetch(Cmd::new("mime").into(), files).await {
-				error!("Fetch `mime` failed in opening: {e}");
+			for (fetcher, files) in PLUGIN.mime_fetchers(files) {
+				if let Err(e) = isolate::fetch(CmdCow::from(&fetcher.run), files).await {
+					error!("Fetch mime failed on opening: {e}");
+				}
 			}
 
 			ManagerProxy::open_do(OpenDoOpt { hovered, targets: done, interactive: opt.interactive });

yazi-core/src/manager/watcher.rs

@@ -6,10 +6,11 @@ use parking_lot::RwLock;
 use tokio::{fs, pin, sync::{mpsc::{self, UnboundedReceiver}, watch}};
 use tokio_stream::{StreamExt, wrappers::UnboundedReceiverStream};
 use tracing::error;
+use yazi_config::PLUGIN;
 use yazi_fs::{Files, Folder};
 use yazi_plugin::isolate;
 use yazi_proxy::WATCHER;
-use yazi_shared::{RoCell, event::Cmd, fs::{Cha, File, FilesOp, Url, realname_unchecked}};
+use yazi_shared::{RoCell, event::CmdCow, fs::{Cha, File, FilesOp, Url, realname_unchecked}};
 
 use super::Linked;
 
@@ -151,8 +152,10 @@ impl Watcher {
 			}
 
 			FilesOp::mutate(ops);
-			if let Err(e) = isolate::fetch(Cmd::new("mime").into(), reload).await {
-				error!("Fetch `mime` failed in watcher: {e}");
+			for (fetcher, files) in PLUGIN.mime_fetchers(reload) {
+				if let Err(e) = isolate::fetch(CmdCow::from(&fetcher.run), files).await {
+					error!("Fetch mime failed in watcher: {e}");
+				}
 			}
 		}
 	}

yazi-core/src/tasks/preload.rs

@@ -17,13 +17,13 @@ impl Tasks {
 				_ => false,
 			};
 
-			for p in PLUGIN.fetchers(&f.url, mime, factors) {
+			for g in PLUGIN.fetchers(&f.url, mime, factors) {
 				match loaded.get_mut(&f.url) {
-					Some(n) if *n & (1 << p.idx) != 0 => continue,
-					Some(n) => *n |= 1 << p.idx,
-					None => _ = loaded.insert(f.url_owned(), 1 << p.idx),
+					Some(n) if *n & (1 << g.idx) != 0 => continue,
+					Some(n) => *n |= 1 << g.idx,
+					None => _ = loaded.insert(f.url_owned(), 1 << g.idx),
 				}
-				tasks[p.idx as usize].push(f.clone());
+				tasks[g.idx as usize].push(f.clone());
 			}
 		}