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Automatically download Java when Java is not found

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This commit is contained in:
Glavo
2022-02-07 23:10:02 +08:00
committed by Yuhui Huang
parent a1f8ff7463
commit 1b9b0226f2
3 changed files with 31 additions and 23 deletions
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32
HMCLauncher/HMCL/os.cpp
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@@ -125,34 +125,38 @@ void MyPathAddBackslash(std::wstring &filePath) {
}
}
LSTATUS MyGetTempPath(std::wstring &out) {
out = std::wstring();
LSTATUS MyGetTempFile(const std::wstring &prefixString, const std::wstring &ext, std::wstring &out) {
out.resize(MAX_PATH);
DWORD res = GetTempPath(MAX_PATH, &out[0]);
if (res == 0) {
return GetLastError();
}
out.resize(res);
return ERROR_SUCCESS;
}
LSTATUS MyGetTempFileName(const std::wstring &pathName, const std::wstring &prefixString, std::wstring &out) {
out = std::wstring();
out.resize(MAX_PATH);
GUID guid;
CoCreateGuid(&guid);
if (GetTempFileName(pathName.c_str(), prefixString.c_str(), 0, &out[0]) == 0) {
out.resize(0);
return GetLastError();
WCHAR buffer[MAX_PATH];
int n = StringFromGUID2(guid, buffer, MAX_PATH);
if (n == 0) {
return CO_E_PATHTOOLONG;
}
out.resize(wcslen(&out[0]));
MyPathAddBackslash(out);
out += prefixString;
out += buffer;
out += L'.';
out += ext;
return ERROR_SUCCESS;
}
void MyAppendPathToCommandLine(std::wstring &commandLine, const std::wstring &path) {
commandLine += L'"';
for (WCHAR ch : path) {
if (ch == L'\\') {
for (size_t i = 0; i < path.size(); i++) {
WCHAR ch = path[i];
if (ch == L'\\' && (i + 1 == path.size() || path[i + 1] == L'"')) {
commandLine += L"\\\\";
} else if (ch == L'"') {
commandLine += L"\\\"";