upstream/mercurial-mirror Files · contrib/fuzz/README.rst

py3: manually import pycompat.open into files that need it...

py3: manually import pycompat.open into files that need it We want to eliminate the source transformer. Currently it inserts a `from mercurial.pycompat import ...` at the top of files to alias some builtins. This commit replaces the implicit import of `open` with an explicit import on files that need it and changes the source transformer to no longer import `open`. As part of this, we needed to store an explicit local for `open` in the Python 2 code path in `pycompat` so the import works. (Builtins that are automatically in scope cannot be imported.) Differential Revision: https://phab.mercurial-scm.org/D7005

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        Augie Fackler
    
fuzz: add a quick README to try and document how to test new fuzzers...

              r36698
            
      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

        Augie Fackler
    
fuzz: add some more docs about building/running fuzzers...

              r36716
            
        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

        Augie Fackler
    
fuzz: add a quick README to try and document how to test new fuzzers...

              r36698
            
      0: https://github.com/google/oss-fuzz/blob/master/docs/new_project_guide.md

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Augie Fackler fuzz: add a quick README to try and document how to test new fuzzers...	r36698	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
Augie Fackler fuzz: add some more docs about building/running fuzzers...	r36716	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
Augie Fackler fuzz: add a quick README to try and document how to test new fuzzers...	r36698
		0: https://github.com/google/oss-fuzz/blob/master/docs/new_project_guide.md