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debugdiscovery: add flags to run discovery on subsets of the local repo...
debugdiscovery: add flags to run discovery on subsets of the local repo Generating new repository using strip of local clone is very expensive for large repositories. And such large repository are the most likely to requires debugging around discovery. So we add a simple way to run discovery using provided sets of heads. Differential Revision: https://phab.mercurial-scm.org/D9945

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testing.rs
72 lines | 1.7 KiB | application/rls-services+xml | RustLexer
// testing.rs
//
// Copyright 2018 Georges Racinet <georges.racinet@octobus.net>
//
// This software may be used and distributed according to the terms of the
// GNU General Public License version 2 or any later version.
use crate::{Graph, GraphError, Revision, NULL_REVISION};
/// A stub `Graph`, same as the one from `test-ancestor.py`
///
/// o 13
/// |
/// | o 12
/// | |
/// | | o 11
/// | | |\
/// | | | | o 10
/// | | | | |
/// | o---+ | 9
/// | | | | |
/// o | | | | 8
/// / / / /
/// | | o | 7
/// | | | |
/// o---+ | 6
/// / / /
/// | | o 5
/// | |/
/// | o 4
/// | |
/// o | 3
/// | |
/// | o 2
/// |/
/// o 1
/// |
/// o 0
#[derive(Clone, Debug)]
pub struct SampleGraph;
impl Graph for SampleGraph {
fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError> {
match rev {
0 => Ok([NULL_REVISION, NULL_REVISION]),
1 => Ok([0, NULL_REVISION]),
2 => Ok([1, NULL_REVISION]),
3 => Ok([1, NULL_REVISION]),
4 => Ok([2, NULL_REVISION]),
5 => Ok([4, NULL_REVISION]),
6 => Ok([4, NULL_REVISION]),
7 => Ok([4, NULL_REVISION]),
8 => Ok([NULL_REVISION, NULL_REVISION]),
9 => Ok([6, 7]),
10 => Ok([5, NULL_REVISION]),
11 => Ok([3, 7]),
12 => Ok([9, NULL_REVISION]),
13 => Ok([8, NULL_REVISION]),
r => Err(GraphError::ParentOutOfRange(r)),
}
}
}
// A Graph represented by a vector whose indices are revisions
// and values are parents of the revisions
pub type VecGraph = Vec<[Revision; 2]>;
impl Graph for VecGraph {
fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError> {
Ok(self[rev as usize])
}
}