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copies: fix crash on in changeset-centric tracing from commit to itself...
copies: fix crash on in changeset-centric tracing from commit to itself When we trace copies from a changeset to itself, the "work" queue ends up empty and we hit the "assert False" after it. It was only the last of the three added tests that failed before this patch. That is because the other two cases have fast paths, so _committedforwardcopies() is never reached. Differential Revision: https://phab.mercurial-scm.org/D6675
Martin von Zweigbergk -
r42868:8c5a3680 stable
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How to add fuzzers (partially cribbed from oss-fuzz[0]):

  1. git clone https://github.com/google/oss-fuzz
  2. cd oss-fuzz
  3. python infra/helper.py build_image mercurial
  4. docker run --cap-add=SYS_PTRACE -it -v $HG_REPO_PATH:/hg-new
    gcr.io/oss-fuzz/mercurial bash
  5. cd /src
  6. rm -r mercurial
  7. ln -s /hg-new mercurial
  8. cd mercurial
  9. compile
  10. ls $OUT

Step 9 is literally running the command "compile", which is part of the docker container. Once you have that working, you can build the fuzzers like this (in the oss-fuzz repo):

python infra/helper.py build_fuzzers --sanitizer address mercurial $HG_REPO_PATH

(you can also say "memory", "undefined" or "coverage" for sanitizer). Then run the built fuzzers like this:

python infra/helper.py run_fuzzer mercurial -- $FUZZER

0: https://github.com/google/oss-fuzz/blob/master/docs/new_project_guide.md