tests: write commit message using file I/O
Python 2.7 will print() \x94\x5c\x0a whereas Python 3 will
print() \xc2\x94\x5c\x0a. Why, I'm not sure. It probably has to
do with print() being Unicode aware on Python 3 and Python
attempting some kind of encoding before emitting the output.
This difference results in a different bytes making it to the
commit message and the JSON output varying. We work around
this by writing bytes to a commit message file.
Differential Revision: https://phab.mercurial-scm.org/D5741
#include "pyutil.h"
#include <string>
namespace contrib
{
static char cpypath[8192] = "\0";
static PyObject *mainmod;
static PyObject *globals;
/* TODO: use Python 3 for this fuzzing? */
PyMODINIT_FUNC initparsers(void);
void initpy(const char *cselfpath)
{
const std::string subdir = "/sanpy/lib/python2.7";
/* HACK ALERT: we need a full Python installation built without
pymalloc and with ASAN, so we dump one in
$OUT/sanpy/lib/python2.7. This helps us wire that up. */
std::string selfpath(cselfpath);
std::string pypath;
auto pos = selfpath.rfind("/");
if (pos == std::string::npos) {
char wd[8192];
getcwd(wd, 8192);
pypath = std::string(wd) + subdir;
} else {
pypath = selfpath.substr(0, pos) + subdir;
}
strncpy(cpypath, pypath.c_str(), pypath.size());
setenv("PYTHONPATH", cpypath, 1);
setenv("PYTHONNOUSERSITE", "1", 1);
/* prevent Python from looking up users in the fuzz environment */
setenv("PYTHONUSERBASE", cpypath, 1);
Py_SetPythonHome(cpypath);
Py_InitializeEx(0);
mainmod = PyImport_AddModule("__main__");
globals = PyModule_GetDict(mainmod);
initparsers();
}
PyObject *pyglobals()
{
return globals;
}
} // namespace contrib