Mercurial > hg
view contrib/fuzz/manifest.cc @ 44015:7ca8aa8840c0 stable
subrepo: fix a crash when archiving an svn or git subrepo
Only hgsubrepos have a repository attribute. This is pretty hacky, but probably
the best we can do on stable. Pushing the lfstatus check down into the wrapper
for hgsubrepo (and dropping the check for lfstatus at the top of
`hgsubrepoarchive()`) resulted in various test failures because:
1) hgsubrepoarchive isn't returning the number of files archived at the
bottom, resulting in an error about += NoneType
2) These copypasta archive wrappers don't use progress bars
3) Largefiles are *not* currently archived when using extdiff (68822b7cdd01),
but pushing this context manager down into the subrepo resulted in it
apparently doing so (as evidenced by progress bars being dropped)
The other uses of `lfstatus()` are not in the substate processing loop, so they
shouldn't be an issue.
I initially put testcases in this test for largefiles-{on,off}, and it flagged
a bunch of exit code differences for `cat` and `diff`, so I backed that off.
Differential Revision: https://phab.mercurial-scm.org/D7714
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Tue, 24 Dec 2019 01:38:02 -0500 |
parents | d60bd5c71cbb |
children | 8766728dbce6 |
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#include <Python.h> #include <assert.h> #include <stdlib.h> #include <unistd.h> #include "pyutil.h" #include <string> extern "C" { static PyCodeObject *code; extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) { contrib::initpy(*argv[0]); code = (PyCodeObject *)Py_CompileString(R"py( from parsers import lazymanifest try: lm = lazymanifest(mdata) # iterate the whole thing, which causes the code to fully parse # every line in the manifest for e, _, _ in lm.iterentries(): # also exercise __getitem__ et al lm[e] e in lm (e + 'nope') in lm lm[b'xyzzy'] = (b'\0' * 20, 'x') # do an insert, text should change assert lm.text() != mdata, "insert should change text and didn't: %r %r" % (lm.text(), mdata) cloned = lm.filtercopy(lambda x: x != 'xyzzy') assert cloned.text() == mdata, 'cloned text should equal mdata' cloned.diff(lm) del lm[b'xyzzy'] cloned.diff(lm) # should be back to the same assert lm.text() == mdata, "delete should have restored text but didn't: %r %r" % (lm.text(), mdata) except Exception as e: pass # uncomment this print if you're editing this Python code # to debug failures. # print e )py", "fuzzer", Py_file_input); return 0; } int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { // Don't allow fuzzer inputs larger than 100k, since we'll just bog // down and not accomplish much. if (Size > 100000) { return 0; } PyObject *mtext = PyBytes_FromStringAndSize((const char *)Data, (Py_ssize_t)Size); PyObject *locals = PyDict_New(); PyDict_SetItemString(locals, "mdata", mtext); PyObject *res = PyEval_EvalCode(code, contrib::pyglobals(), locals); if (!res) { PyErr_Print(); } Py_XDECREF(res); Py_DECREF(locals); Py_DECREF(mtext); return 0; // Non-zero return values are reserved for future use. } }