mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-06-23 15:30:45 -04:00
cc9a40868e
This means path based imports of them will continue to work even after freeze into single dir
53 lines
2.3 KiB
C
53 lines
2.3 KiB
C
#include "util.h"
|
|
#include "../run-python.h"
|
|
|
|
static char exe_path_char[PATH_MAX];
|
|
|
|
static void
|
|
get_paths() {
|
|
char linkname[256]; /* /proc/<pid>/exe */
|
|
wchar_t *p;
|
|
pid_t pid;
|
|
int ret;
|
|
|
|
pid = getpid();
|
|
|
|
if (snprintf(linkname, sizeof(linkname), "/proc/%i/exe", pid) < 0) {
|
|
/* This should only happen on large word systems. I'm not sure
|
|
what the proper response is here.
|
|
Since it really is an assert-like condition, aborting the
|
|
program seems to be in order. */
|
|
fatal("PID too large");
|
|
}
|
|
|
|
ret = readlink(linkname, exe_path_char, sizeof(exe_path_char));
|
|
if (ret == -1) fatal("Failed to read exe path from: %s", exe_path_char);
|
|
if ((size_t)ret >= sizeof(exe_path_char)) fatal("exe path buffer too small.");
|
|
exe_path_char[ret] = 0;
|
|
decode_char_buf(exe_path_char, interpreter_data.exe_path);
|
|
|
|
p = wcsrchr(interpreter_data.exe_path, '/');
|
|
if (p == NULL) fatal("No path separators in executable path: %s", exe_path_char);
|
|
wcsncat(interpreter_data.python_home_path, interpreter_data.exe_path, p - interpreter_data.exe_path);
|
|
p = wcsrchr(interpreter_data.python_home_path, '/');
|
|
if (p == NULL) fatal("Only one path separator in executable path: %s", exe_path_char);
|
|
*p = 0;
|
|
size_t home_len = p - interpreter_data.python_home_path;
|
|
if (home_len == 0) fatal("base directory empty");
|
|
wcsncat(interpreter_data.executables_path, interpreter_data.python_home_path, home_len);
|
|
|
|
swprintf(interpreter_data.python_lib_path, arraysz(interpreter_data.python_lib_path), L"%ls/lib/python%d.%d", interpreter_data.python_home_path, PY_VERSION_MAJOR, PY_VERSION_MINOR);
|
|
swprintf(interpreter_data.resources_path, arraysz(interpreter_data.resources_path), L"%ls/resources", interpreter_data.python_home_path);
|
|
swprintf(interpreter_data.extensions_path, arraysz(interpreter_data.extensions_path), L"%ls/lib/calibre-extensions", interpreter_data.python_home_path);
|
|
}
|
|
|
|
void
|
|
execute_python_entrypoint(int argc, char * const *argv, const wchar_t *basename, const wchar_t *module, const wchar_t *function, const bool gui_app) {
|
|
interpreter_data.argc = argc;
|
|
interpreter_data.argv = argv;
|
|
interpreter_data.basename = basename; interpreter_data.module = module; interpreter_data.function = function;
|
|
pre_initialize_interpreter(gui_app);
|
|
get_paths();
|
|
run_interpreter();
|
|
}
|