Use TarFS.

Makefile

@@ -41,7 +41,7 @@ examples/$(1)/latex/config.tex: examples/$(1).ayapack plugins
 	mkdir -p $$(@D)
 	cd bins && $$(MAKE) run-latex FILE=$$(realpath $$<) TEXOUT=$$(abspath $$@)
 examples/$(1).ayapack:
-	frfs pack examples/$(1)/ examples/$(1).ayapack --magic-number-start AYAPACK --magic-number-end PACKEND
+	(cd -P examples/$(1) && tar -chf $$(abspath $$@) -- *)
 
 endef
 

book/src/SUMMARY.md

@@ -22,4 +22,5 @@
     - [Game plugin](./plugin/game_plugin.md)
 - [GUI](./gui/summary.md)
     - [Live2D](./gui/live2d.md)
+- [Packaging](./packaging.md)
 - [Support platforms](./platforms.md)

book/src/packaging.md

@@ -0,0 +1,17 @@
+# Packaging
+We support package format called `ayapack`.
+Internally it is a TAR format archive, without any compression.
+We load the package file with memory map to reduce allocations.
+
+## Packaging
+`tar` executable is pre-installed on almost all platforms. There may be BSD-Tar or GNU-Tar. For a directory `foo` that contains `config.yaml`, we can simply execute
+
+``` bash
+$ cd foo
+$ tar -cf foo.ayapack *
+```
+
+The parameter `c` means creating a package, and `f` means the following parameter is the package path.
+
+## Details
+The details of the parsing and loading are in the [`vfs-tar`](https://github.com/Berrysoft/vfs-tar).

book/translations/zh-Hans/SUMMARY.md

@@ -22,4 +22,5 @@
     - [Game 插件](./plugin/game_plugin.md)
 - [GUI](./gui/summary.md)
     - [Live2D](./gui/live2d.md)
+- [打包](./packaging.md)
 - [支持的平台](./platforms.md)

book/translations/zh-Hans/packaging.md

@@ -0,0 +1 @@
+# 打包

utils/ayaka-runtime/Cargo.toml

@@ -21,7 +21,7 @@ log = { workspace = true }
 trylog = { workspace = true }
 cfg-if = "1.0"
 vfs = { workspace = true }
-frfs = { git = "https://github.com/Tim-Paik/frfs.git", features = ["vfs"] }
+vfs-tar = "0.2"
 rand = "0.8"
 
 ayaka-plugin-nop = { path = "../ayaka-plugin-nop" }

utils/ayaka-runtime/src/context.rs

@@ -5,13 +5,13 @@ use crate::{
 use anyhow::{anyhow, bail, Result};
 use ayaka_bindings_types::*;
 use fallback::Fallback;
-use frfs::{MagicNumber, FRFS};
 use log::error;
 use std::{collections::HashMap, path::Path, sync::Arc};
 use stream_future::stream;
 use tryiterator::TryIteratorExt;
 use trylog::macros::*;
 use vfs::*;
+use vfs_tar::TarFS;
 
 /// The game running context.
 pub struct Context {
@@ -50,9 +50,6 @@ impl From<LoadStatus> for OpenStatus {
     }
 }
 
-const MAGIC_NUMBER_START: MagicNumber = *b"AYAPACK";
-const MAGIC_NUMBER_END: MagicNumber = *b"PACKEND";
-
 impl Context {
     /// Open a config file with frontend type.
     ///
@@ -77,20 +74,15 @@ impl Context {
                     path.file_name().unwrap_or_default().to_string_lossy(),
                 )
             } else if ext == "ayapack" {
-                (
-                    FRFS::new_with_header(path, MAGIC_NUMBER_START, MAGIC_NUMBER_END)?.into(),
-                    "config.yaml".into(),
-                )
+                (TarFS::new(path)?.into(), "config.yaml".into())
             } else {
                 bail!("Cannot determine filesystem.")
             }
         } else {
             let files = paths
                 .iter()
                 .rev()
-                .map(|path| {
-                    FRFS::new_with_header(path.as_ref(), MAGIC_NUMBER_START, MAGIC_NUMBER_END)
-                })
+                .map(|path| TarFS::new(path.as_ref()))
                 .try_filter_map(|fs| Ok(Some(VfsPath::from(fs))))
                 .try_collect::<Vec<_>>()?;
             (OverlayFS::new(&files).into(), "config.yaml".into())