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cpython/PC/python_uwp.cpp at 3.7 · python/cpython · GitHub
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/*
Main program when embedded in a UWP application on Windows
*/
#
include
"
Python.h
"
#
include
<
string.h
>
#
define
WIN32_LEAN_AND_MEAN
#
include
<
Windows.h
>
#
include
<
shellapi.h
>
#
include
<
shlobj.h
>
#
include
<
string
>
#
include
<
winrt\Windows.ApplicationModel.h
>
#
include
<
winrt\Windows.Storage.h
>
#
ifdef
PYTHONW
#
ifdef
_DEBUG
const
wchar_t
*
PROGNAME
=
L"
pythonw_d.exe
"
;
#
else
const
wchar_t
*
PROGNAME
=
L"
pythonw.exe
"
;
#
endif
#
else
#
ifdef
_DEBUG
const
wchar_t
*
PROGNAME
=
L"
python_d.exe
"
;
#
else
const
wchar_t
*
PROGNAME
=
L"
python.exe
"
;
#
endif
#
endif
static
std::wstring
get_user_base
()
{
try
{
const
auto
appData =
winrt::Windows::Storage::ApplicationData::Current
();
if
(appData) {
const
auto
localCache = appData.
LocalCacheFolder
();
if
(localCache) {
auto
path = localCache.
Path
();
if
(!path.
empty
()) {
return
std::wstring
(path) +
L"
\\
local-packages
"
;
}
}
}
}
catch
(...) {
}
return
std::wstring
();
}
static
std::wstring
get_package_family
()
{
try
{
const
auto
package =
winrt::Windows::ApplicationModel::Package::Current
();
if
(package) {
const
auto
id = package.
Id
();
if
(id) {
return
std::wstring
(id.
FamilyName
());
}
}
}
catch
(...) {
}
return
std::wstring
();
}
static
std::wstring
get_package_home
()
{
try
{
const
auto
package =
winrt::Windows::ApplicationModel::Package::Current
();
if
(package) {
const
auto
path = package.
InstalledLocation
();
if
(path) {
return
std::wstring
(path.
Path
());
}
}
}
catch
(...) {
}
return
std::wstring
();
}
static
int
set_process_name
()
{
const
auto
home =
get_package_home
();
const
auto
family =
get_package_family
();
std::wstring executable;
/*
If inside a package, use user's symlink name for executable
*/
if
(!family.
empty
()) {
PWSTR
localAppData;
if
(
SUCCEEDED
(
SHGetKnownFolderPath
(FOLDERID_LocalAppData,
0
,
NULL
, &localAppData))) {
executable =
std::wstring
(localAppData)
+
L"
\\
Microsoft
\\
WindowsApps
\\
"
+ family
+
L"
\\
"
+
PROGNAME
;
CoTaskMemFree
(localAppData);
}
}
/*
Only use module filename if we don't have a home
*/
if
(home.
empty
() && executable.
empty
()) {
executable.
resize
(
MAX_PATH
);
while
(
true
) {
DWORD
len =
GetModuleFileNameW
(
NULL
, executable.
data
(), (
DWORD
)executable.
size
());
if
(len ==
0
) {
executable.
clear
();
break
;
}
else
if
(len == executable.
size
() &&
GetLastError
() ==
ERROR_INSUFFICIENT_BUFFER
) {
executable.
resize
(len *
2
);
}
else
{
executable.
resize
(len);
break
;
}
}
}
if
(!home.
empty
()) {
Py_SetPythonHome
(home.
c_str
());
}
const
wchar_t
*launcherPath =
_wgetenv
(
L"
__PYVENV_LAUNCHER__
"
);
if
(launcherPath) {
if
(!executable.
empty
()) {
_wputenv_s
(
L"
__PYVENV_BASE_EXECUTABLE__
"
, executable.
c_str
());
}
_Py_SetProgramFullPath
(launcherPath);
/*
bpo-35873: Clear the environment variable to avoid it being
* inherited by child processes.
*/
_wputenv_s
(
L"
__PYVENV_LAUNCHER__
"
,
L"
"
);
}
else
if
(!executable.
empty
()) {
_Py_SetProgramFullPath
(executable.
c_str
());
}
return
1
;
}
int
wmain
(
int
argc,
wchar_t
**argv)
{
if
(!
set_process_name
()) {
return
121
;
}
const
wchar_t
*p =
_wgetenv
(
L"
PYTHONUSERBASE
"
);
if
(!p || !*p) {
_wputenv_s
(
L"
PYTHONUSERBASE
"
,
get_user_base
().
c_str
());
}
p =
wcsrchr
(argv[
0
], L
'
\\
'
);
if
(!p) {
p = argv[
0
];
}
if
(p) {
if
(*p == L
'
\\
'
) {
p++;
}
const
wchar_t
*moduleName =
NULL
;
if
(
wcsnicmp
(p,
L"
pip
"
,
3
) ==
0
) {
moduleName =
L"
pip
"
;
/*
No longer required when pip 19.1 is added
*/
_wputenv_s
(
L"
PIP_USER
"
,
L"
true
"
);
}
else
if
(
wcsnicmp
(p,
L"
idle
"
,
4
) ==
0
) {
moduleName =
L"
idlelib
"
;
}
if
(moduleName) {
/*
Not even pretending we're going to free this memory.
* The OS will clean it all up when our process exits
*/
wchar_t
**new_argv = (
wchar_t
**)
PyMem_RawMalloc
((argc +
2
) *
sizeof
(
wchar_t
*));
new_argv[
0
] = argv[
0
];
new_argv[
1
] =
_PyMem_RawWcsdup
(
L"
-m
"
);
new_argv[
2
] =
_PyMem_RawWcsdup
(moduleName);
for
(
int
i =
1
; i < argc; ++i) {
new_argv[i +
2
] = argv[i];
}
argv = new_argv;
argc +=
2
;
}
}
return
Py_Main
(argc, (
wchar_t
**)argv);
}
#
ifdef
PYTHONW
int
WINAPI
wWinMain
(
HINSTANCE
hInstance,
/*
handle to current instance
*/
HINSTANCE
hPrevInstance,
/*
handle to previous instance
*/
LPWSTR
lpCmdLine,
/*
pointer to command line
*/
int
nCmdShow
/*
show state of window
*/
)
{
return
wmain
(__argc, __wargv);
}
#
endif
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