diff options
Diffstat (limited to 'vendor/gix-index/src/decode/mod.rs')
| -rw-r--r-- | vendor/gix-index/src/decode/mod.rs | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/vendor/gix-index/src/decode/mod.rs b/vendor/gix-index/src/decode/mod.rs index f51a5d5e9..12c8c53e4 100644 --- a/vendor/gix-index/src/decode/mod.rs +++ b/vendor/gix-index/src/decode/mod.rs @@ -54,7 +54,7 @@ pub struct Options { impl State { /// Decode an index state from `data` and store `timestamp` in the resulting instance for pass-through, assuming `object_hash` - /// to be used through the file. + /// to be used through the file. Also return the stored hash over all bytes in `data` or `None` if none was written due to `index.skipHash`. pub fn from_bytes( data: &[u8], timestamp: FileTime, @@ -64,7 +64,8 @@ impl State { min_extension_block_in_bytes_for_threading, expected_checksum, }: Options, - ) -> Result<(Self, gix_hash::ObjectId), Error> { + ) -> Result<(Self, Option<gix_hash::ObjectId>), Error> { + let _span = gix_features::trace::detail!("gix_index::State::from_bytes()"); let (version, num_entries, post_header_data) = header::decode(data, object_hash)?; let start_of_extensions = extension::end_of_index_entry::decode(data, object_hash); @@ -213,10 +214,11 @@ impl State { } let checksum = gix_hash::ObjectId::from(data); - if let Some(expected_checksum) = expected_checksum { - if checksum != expected_checksum { + let checksum = (!checksum.is_null()).then_some(checksum); + if let Some((expected_checksum, actual_checksum)) = expected_checksum.zip(checksum) { + if actual_checksum != expected_checksum { return Err(Error::ChecksumMismatch { - actual_checksum: checksum, + actual_checksum, expected_checksum, }); } |