add ydb deps

1 files changed, 46 insertions, 0 deletions

diff --git a/library/python/runtime/main/main.c b/library/python/runtime/main/main.c
new file mode 100644
index 0000000000..69dd80e558
--- /dev/null
+++ b/library/python/runtime/main/main.c
@@ -0,0 +1,46 @@
+#include <Python.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+void Py_InitArgcArgv(int argc, char** argv);
+
+static const char* env_entry_point = "Y_PYTHON_ENTRY_POINT";
+
+#ifdef _MSC_VER
+extern char** environ;
+
+void unsetenv(const char* name) {
+    const int n = strlen(name);
+    char** dst = environ;
+    for (char** src = environ; *src; src++)
+        if (strncmp(*src, name, n) || (*src)[n] != '=')
+            *dst++ = *src;
+    *dst = NULL;
+}
+#endif
+
+static int pymain(int argc, char** argv) {
+    const char* entry_point = getenv(env_entry_point);
+    if (entry_point && !strcmp(entry_point, ":main")) {
+        unsetenv(env_entry_point);
+        return Py_Main(argc, argv);
+    }
+    Py_InitArgcArgv(argc, argv);
+    Py_SetProgramName(argv[0]);
+    Py_Initialize();
+    PySys_SetArgv(argc, argv);
+    int rc = PyRun_SimpleString(
+        "from library.python.runtime import entry_points\n"
+        "entry_points.run_constructors()\n"
+        "import __res\n"
+        "__res.importer.run_main()\n");
+    Py_Finalize();
+    return rc == 0 ? 0 : 1;
+}
+
+int (*mainptr)(int argc, char** argv) = pymain;
+
+int main(int argc, char** argv) {
+    return mainptr(argc, argv);
+}