5.22

1 files changed, 104 insertions, 0 deletions

diff --git a/zen/shell_execute.h b/zen/shell_execute.h
new file mode 100644
index 00000000..14a6a40e
--- /dev/null
+++ b/zen/shell_execute.h
@@ -0,0 +1,104 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved        *
+// **************************************************************************
+
+#ifndef EXECUTE_HEADER_23482134578134134
+#define EXECUTE_HEADER_23482134578134134
+
+#include "file_error.h"
+
+#ifdef ZEN_WIN
+#include "scope_guard.h"
+#include "win.h" //includes "windows.h"
+
+#elif defined ZEN_LINUX || defined ZEN_MAC
+#include "thread.h"
+#include <stdlib.h> //::system()
+#endif
+
+
+namespace zen
+{
+//launch commandline and report errors via popup dialog
+//windows: COM needs to be initialized before calling this function!
+enum ExecutionType
+{
+    EXEC_TYPE_SYNC,
+    EXEC_TYPE_ASYNC
+};
+
+namespace
+{
+void shellExecute2(const Zstring& command, ExecutionType type) //throw FileError
+{
+#ifdef ZEN_WIN
+    //parse commandline
+    Zstring commandTmp = command;
+    trim(commandTmp, true, false); //CommandLineToArgvW() does not like leading spaces
+
+    std::vector<Zstring> argv;
+    int argc = 0;
+    if (LPWSTR* tmp = ::CommandLineToArgvW(commandTmp.c_str(), &argc))
+    {
+        ZEN_ON_SCOPE_EXIT(::LocalFree(tmp));
+        std::copy(tmp, tmp + argc, std::back_inserter(argv));
+    }
+
+    Zstring filename;
+    Zstring arguments;
+    if (!argv.empty())
+    {
+        filename = argv[0];
+        for (auto iter = argv.begin() + 1; iter != argv.end(); ++iter)
+            arguments += (iter != argv.begin() ? L" " : L"") +
+                         (iter->empty() || std::any_of(iter->begin(), iter->end(), &isWhiteSpace<wchar_t>) ? L"\"" + *iter + L"\"" : *iter);
+    }
+
+    SHELLEXECUTEINFO execInfo = {};
+    execInfo.cbSize = sizeof(execInfo);
+
+    //SEE_MASK_NOASYNC is equal to SEE_MASK_FLAG_DDEWAIT, but former is defined not before Win SDK 6.0
+    execInfo.fMask        = type == EXEC_TYPE_SYNC ? (SEE_MASK_NOCLOSEPROCESS | SEE_MASK_FLAG_DDEWAIT) : 0; //don't use SEE_MASK_ASYNCOK -> returns successful despite errors!
+    execInfo.fMask       |= SEE_MASK_UNICODE | SEE_MASK_FLAG_NO_UI; //::ShellExecuteEx() shows a non-blocking pop-up dialog on errors -> we want a blocking one
+    execInfo.lpVerb       = nullptr;
+    execInfo.lpFile       = filename.c_str();
+    execInfo.lpParameters = arguments.c_str();
+    execInfo.nShow        = SW_SHOWNORMAL;
+
+    if (!::ShellExecuteEx(&execInfo)) //__inout  LPSHELLEXECUTEINFO lpExecInfo
+        throw FileError(_("Incorrect command line:") + L"\nFile: " + filename + L"\nArg: " + arguments,
+                        formatSystemError(L"ShellExecuteEx", getLastError()));
+
+    if (execInfo.hProcess)
+    {
+        ZEN_ON_SCOPE_EXIT(::CloseHandle(execInfo.hProcess));
+
+        if (type == EXEC_TYPE_SYNC)
+            ::WaitForSingleObject(execInfo.hProcess, INFINITE);
+    }
+
+#elif defined ZEN_LINUX || defined ZEN_MAC
+    /*
+    we cannot use wxExecute due to various issues:
+    - screws up encoding on OS X for non-ASCII characters
+    - does not provide any reasonable error information
+    - uses a zero-sized dummy window as a hack to keep focus which leaves a useless empty icon in ALT-TAB list in Windows
+    */
+
+    if (type == EXEC_TYPE_SYNC)
+    {
+        //Posix::system - execute a shell command
+        int rv = ::system(command.c_str()); //do NOT use std::system as its documentation says nothing about "WEXITSTATUS(rv)", ect...
+        if (rv == -1 || WEXITSTATUS(rv) == 127) //http://linux.die.net/man/3/system    "In case /bin/sh could not be executed, the exit status will be that of a command that does exit(127)"
+            throw FileError(_("Incorrect command line:") + L"\n" + command);
+    }
+    else
+        async([=] { int rv = ::system(command.c_str()); (void)rv; });
+#endif
+}
+}
+}
+
+#endif //EXECUTE_HEADER_23482134578134134