Mercurial > public > mercurial-scm > hg-stable
comparison rust/hg-core/src/revlog/index.rs @ 48575:e91aa800ae5b
rhg: desambiguate status without decompressing filelog if possible
When status is unsure based on `stat()` and the dirstate if a file is clean
or modified, we need to compare it against the filelog.
This comparison can skip looking at contents if the lengths differ.
This changeset optimize this further to deduce what we can about the length
if the filelog without decompressing it or resolving deltas.
Differential Revision: https://phab.mercurial-scm.org/D11965
| author | Simon Sapin <simon.sapin@octobus.net> |
|---|---|
| date | Fri, 07 Jan 2022 14:40:21 +0100 |
| parents | 0a4ac916673e |
| children | d200ecb76c72 |
comparison
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| 48574:5026a0d37526 | 48575:e91aa800ae5b |
|---|---|
| 256 } else { | 256 } else { |
| 257 let mut bytes = [0; 8]; | 257 let mut bytes = [0; 8]; |
| 258 bytes[2..8].copy_from_slice(&self.bytes[0..=5]); | 258 bytes[2..8].copy_from_slice(&self.bytes[0..=5]); |
| 259 BigEndian::read_u64(&bytes[..]) as usize | 259 BigEndian::read_u64(&bytes[..]) as usize |
| 260 } | 260 } |
| 261 } | |
| 262 | |
| 263 pub fn flags(&self) -> u16 { | |
| 264 BigEndian::read_u16(&self.bytes[6..=7]) | |
| 261 } | 265 } |
| 262 | 266 |
| 263 /// Return the compressed length of the data. | 267 /// Return the compressed length of the data. |
| 264 pub fn compressed_len(&self) -> u32 { | 268 pub fn compressed_len(&self) -> u32 { |
| 265 BigEndian::read_u32(&self.bytes[8..=11]) | 269 BigEndian::read_u32(&self.bytes[8..=11]) |