view tests/test-diff-issue2761.t @ 46627:47557ea79fc7

copies-rust: move CPU-heavy Rust processing into a child thread

… that runs in parallel with the parent thread fetching data.
This can be disabled through a new config. CLI example:

    hg --config=devel.copy-tracing.multi-thread=no

For now both threads use the GIL, later commits will reduce this.

Differential Revision: https://phab.mercurial-scm.org/D9684

Test issue2761

  $ hg init

  $ touch to-be-deleted
  $ hg add
  adding to-be-deleted
  $ hg ci -m first
  $ echo a > to-be-deleted
  $ hg ci -m second
  $ rm to-be-deleted
  $ hg diff -r 0

Same issue, different code path

  $ hg up -C
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ touch does-not-exist-in-1
  $ hg add
  adding does-not-exist-in-1
  $ hg ci -m third
  $ rm does-not-exist-in-1
  $ hg diff -r 1