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annotate rust/hg-core/src/operations/debugdata.rs @ 48605:a809f1465a76

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filemerge: set default labels a little earlier By setting the default labels a little earlier, we can rely on them always being set, as far as I can tell. It may actually even be fine to rely on that even if we don't set them earlier, but it makes more sense to me to do it. Differential Revision: https://phab.mercurial-scm.org/D12015
author Martin von Zweigbergk <martinvonz@google.com>
date Thu, 20 Jan 2022 13:43:43 -0800
parents f2f57724d4eb
children bfc117647c71
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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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9 use crate::revlog::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)]
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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(repo, index_file, None)?;
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29 let rev =
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30 crate::revset::resolve_rev_number_or_hex_prefix(revset, &revlog)?;
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31 let data = revlog.get_rev_data(rev)?;
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32 Ok(data.into_owned())
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33 }