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Diffstat (limited to 'zen/shell_execute.h')
| -rw-r--r-- | zen/shell_execute.h | 104 |
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 |