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annotate rust/hg-core/src/operations/debugdata.rs @ 51188:13f58ce70299

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rust-revlog: teach the revlog opening code to read the repo options This will become necessary as we start writing revlog data from Rust.
author Rapha?l Gom?s <rgomes@octobus.net>
date Mon, 18 Sep 2023 17:11:11 +0200
parents 1928b770e3e7
children 69b804c8e09e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // debugdata.rs
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2 //
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3 // Copyright 2020 Antoine Cezar <antoine.cezar@octobus.net>
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4 //
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5 // This software may be used and distributed according to the terms of the
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6 // GNU General Public License version 2 or any later version.
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7
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8 use crate::repo::Repo;
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750409505286 rust-clippy: merge "revlog" module definition and struct implementation
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9 use crate::revlog::{Revlog, RevlogError};
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10
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11 /// Kind of data to debug
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12 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
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13 pub enum DebugDataKind {
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14 Changelog,
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15 Manifest,
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16 }
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17
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18 /// Dump the contents data of a revision.
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19 pub fn debug_data(
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20 repo: &Repo,
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21 revset: &str,
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22 kind: DebugDataKind,
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23 ) -> Result<Vec<u8>, RevlogError> {
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24 let index_file = match kind {
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25 DebugDataKind::Changelog => "00changelog.i",
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26 DebugDataKind::Manifest => "00manifest.i",
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27 };
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28 let revlog = Revlog::open(
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29 &repo.store_vfs(),
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30 index_file,
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31 None,
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32 repo.default_revlog_options(kind == DebugDataKind::Changelog)?,
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33 )?;
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34 let rev =
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35 crate::revset::resolve_rev_number_or_hex_prefix(revset, &revlog)?;
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36 let data = revlog.get_rev_data_for_checked_rev(rev)?;
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37 Ok(data.into_owned())
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38 }