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feat: make cas files readonly

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daimond113 2024-08-29 23:28:09 +02:00
parent 00db2a51c2
commit 2a136f11db
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GPG key ID: 3A8ECE51328B513C
1 changed files with 13 additions and 2 deletions
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15
src/source/fs.rs
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@ -38,7 +38,13 @@ pub(crate) fn store_in_cas<P: AsRef<Path>>(
let cas_path = folder.join(rest); let cas_path = folder.join(rest);
if !cas_path.exists() { if !cas_path.exists() {
std::fs::write(&cas_path, contents)?; let mut file = std::fs::File::create(&cas_path)?;
file.write_all(contents)?;
// prevent the CAS from being corrupted due to accidental modifications
let mut permissions = file.metadata()?.permissions();
permissions.set_readonly(true);
file.set_permissions(permissions)?;
} }
Ok((hash, cas_path)) Ok((hash, cas_path))
@ -73,7 +79,12 @@ pub(crate) fn store_reader_in_cas<P: AsRef<Path>>(
let cas_path = folder.join(rest); let cas_path = folder.join(rest);
match file_writer.into_inner()?.persist_noclobber(cas_path) { match file_writer.into_inner()?.persist_noclobber(cas_path) {
Ok(_) => {} Ok(f) => {
// prevent the CAS from being corrupted due to accidental modifications
let mut permissions = f.metadata()?.permissions();
permissions.set_readonly(true);
f.set_permissions(permissions)?;
}
Err(e) if e.error.kind() == std::io::ErrorKind::AlreadyExists => {} Err(e) if e.error.kind() == std::io::ErrorKind::AlreadyExists => {}
Err(e) => return Err(e.error), Err(e) => return Err(e.error),
}; };