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Support compressing during cpio backup

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This commit is contained in:
LoveSy
2023-12-08 23:30:55 +08:00
committed by topjohnwu
parent d73c2daf6d
commit 8b7fae278b
9 changed files with 145 additions and 11 deletions
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native/src/boot/ramdisk.rs
+14 -6
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@@ -13,7 +13,7 @@ pub trait MagiskCpio {
fn patch(&mut self);
fn test(&self) -> i32;
fn restore(&mut self) -> LoggedResult<()>;
fn backup(&mut self, origin: &Utf8CStr) -> LoggedResult<()>;
fn backup(&mut self, origin: &Utf8CStr, skip_compress: bool) -> LoggedResult<()>;
}
const MAGISK_PATCHED: i32 = 1 << 0;
@@ -89,13 +89,17 @@ impl MagiskCpio for Cpio {
let mut rm_list = String::new();
self.entries
.extract_if(|name, _| name.starts_with(".backup/"))
.for_each(|(name, entry)| {
.for_each(|(name, mut entry)| {
if name == ".backup/.rmlist" {
if let Ok(data) = from_utf8(&entry.data) {
rm_list.push_str(data);
}
} else if name != ".backup/.magisk" {
let new_name = &name[8..];
let new_name = if name.ends_with(".xz") && entry.decompress().is_ok() {
&name[8..name.len() - 3]
} else {
&name[8..]
};
eprintln!("Restore [{}] -> [{}]", name, new_name);
backups.insert(new_name.to_string(), entry);
}
@@ -115,7 +119,7 @@ impl MagiskCpio for Cpio {
Ok(())
}
fn backup(&mut self, origin: &Utf8CStr) -> LoggedResult<()> {
fn backup(&mut self, origin: &Utf8CStr, skip_compress: bool) -> LoggedResult<()> {
let mut backups = HashMap::<String, Box<CpioEntry>>::new();
let mut rm_list = String::new();
backups.insert(
@@ -170,8 +174,12 @@ impl MagiskCpio for Cpio {
}
};
match action {
Action::Backup(name, entry) => {
let backup = format!(".backup/{}", name);
Action::Backup(name, mut entry) => {
let backup = if !skip_compress && entry.compress().is_ok() {
format!(".backup/{}.xz", name)
} else {
format!(".backup/{}", name)
};
eprintln!("Backup [{}] -> [{}]", name, backup);
backups.insert(backup, entry);
}