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annotate rust/hg-core/src/operations/debugdata.rs @ 53003:155e1e8dc055

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rust-nodemap: don't compute the error string unless needed This is... really dumb and costs a ton of performance in a hot loop. It was 75% of a profile for a tip to null p1 node traversal in pure Rust. I'm at fault, done in 652149ed64f08ee73e8fd2f76aa480ea8820fe08. I thought clippy had a lint for this, but apparently not?
author Rapha?l Gom?s <rgomes@octobus.net>
date Fri, 21 Feb 2025 13:56:11 -0500
parents a3fa37bdb7ec
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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b56df13a0450 hg-core: define a `DebugData` `Operation`
Antoine Cezar <antoine.cezar@octobus.net>
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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::errors::HgError;
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9 use crate::exit_codes;
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10 use crate::repo::Repo;
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11 use crate::revlog::options::default_revlog_options;
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12 use crate::revlog::{Revlog, RevlogError, RevlogType};
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13
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14 /// Dump the contents data of a revision.
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15 pub fn debug_data(
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16 repo: &Repo,
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17 revset: &str,
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18 kind: RevlogType,
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19 ) -> Result<Vec<u8>, RevlogError> {
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20 let index_file = match kind {
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21 RevlogType::Changelog => "00changelog.i",
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22 RevlogType::Manifestlog => "00manifest.i",
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23 _ => {
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24 return Err(RevlogError::Other(HgError::abort(
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25 format!("invalid revlog type {}", kind),
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26 exit_codes::ABORT,
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27 None,
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28 )))
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29 }
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30 };
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31 let revlog = Revlog::open(
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32 &repo.store_vfs(),
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33 index_file,
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34 None,
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35 default_revlog_options(
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36 repo.config(),
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37 repo.requirements(),
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38 RevlogType::Changelog,
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39 )?,
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40 )?;
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41 let rev =
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42 crate::revset::resolve_rev_number_or_hex_prefix(revset, &revlog)?;
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43 let data = revlog.get_data(rev)?;
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44 Ok(data.into_owned())
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45 }