amuramatsu/mkcmd.py

## mkcmd.py
#! /usr/bin/env python3

import os
import sys
import gzip
import base64

EXCLUDES = [ "cmd" ]

cmddir = os.path.realpath(os.path.dirname(__file__))
basedir = os.path.realpath(os.path.join(cmddir, ".."))
bindir = os.path.realpath(os.path.join(basedir, "usr", "bin"))

def make_exefile(name):
    name = os.path.basename(name)
    if name in EXCLUDES:
        return
    cmdfile = os.path.join(cmddir, "{:s}.cmd".format(name))
    exefile = os.path.join(cmddir, "{:s}.exe".format(name))
    if os.path.exists(cmdfile):
        os.remove(cmdfile)
    with open(exefile, "wb") as f:
        f.write(get_mingw_wrapper())

def find_shebang(dirname):
    results = []
    for f in os.listdir(dirname):
        filename = os.path.join(dirname, f)
        if f[0] == "." or os.path.isdir(filename):
            continue
        try:
            with open(filename, "rb") as f:
                firstline = f.readline()
            if firstline.startswith(b"#!"):
                results.append(filename)
        except:
            pass
    return results

_MINGW_WRAPPER_b64 = '''
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AD4AAA==
'''
_MINGW_WRAPPER = None
def get_mingw_wrapper():
    global _MINGW_WRAPPER
    if not _MINGW_WRAPPER:
        _MINGW_WRAPPER = gzip.decompress(base64.b64decode(_MINGW_WRAPPER_b64))
    return _MINGW_WRAPPER

CPP_PROGRAM = r'''
#include <string>
#include <vector>
#include <windows.h>
#include <tchar.h>

#pragma comment(lib, "shell32.lib")
#pragma optimize("gs", on)
#pragma optimize("y", off)
#pragma runtime_checks("scu", off)

void
ArgvQuote (const std::wstring& Argument,
	   std::wstring& CommandLine,
	   bool Force)
/*++

Routine Description:

    This routine appends the given argument to a command line such
    that CommandLineToArgvW will return the argument string unchanged.
    Arguments in a command line should be separated by spaces; this
    function does not add these spaces.

Arguments:

    Argument - Supplies the argument to encode.

    CommandLine - Supplies the command line to which we append the encoded
                  argument string.

    Force - Supplies an indication of whether we should quote
            the argument even if it does not contain any characters that would
            ordinarily require quoting.

Return Value:

    None.

Environment:

    Arbitrary.

--*/

{
    //
    // Unless we're told otherwise, don't quote unless we actually
    // need to do so --- hopefully avoid problems if programs won't
    // parse quotes properly
    //

    if (Force == false &&
        Argument.empty () == false &&
        Argument.find_first_of (L" \t\n\v\"") == Argument.npos) {
        CommandLine.append(Argument);
    }
    else {
        CommandLine.push_back(L'"');

        for (auto It = Argument.begin () ; ; ++It) {
            unsigned NumberBackslashes = 0;

            while (It != Argument.end () && *It == L'\\') {
                ++It;
                ++NumberBackslashes;
            }

            if (It == Argument.end ()) {
                //
                // Escape all backslashes, but let the terminating
                // double quotation mark we add below be interpreted
                // as a metacharacter.
                //

                CommandLine.append (NumberBackslashes * 2, L'\\');
                break;
            }
            else if (*It == L'"') {

                //
                // Escape all backslashes and the following
                // double quotation mark.
                //

                CommandLine.append(NumberBackslashes * 2 + 1, L'\\');
                CommandLine.push_back(*It);
            }
            else {

                //
                // Backslashes aren't special here.
                //

                CommandLine.append(NumberBackslashes, L'\\');
                CommandLine.push_back(*It);
            }
        }
        CommandLine.push_back(L'"');
    }
}

int
main()
{
    // 自力解析
    int argc;
    LPWSTR* argv = CommandLineToArgvW(GetCommandLineW(), &argc);

    const wchar_t* mingw_path = _wgetenv(L"MINGW_PATH");

    if (mingw_path == NULL) {
        wchar_t path[MAX_PATH*4];
        GetModuleFileNameW(NULL, path, sizeof(path)/sizeof(path[0]));
        std::wstring pathname = path;

	//if (pathname.substr(0, 4) != L"\\\\?\\") {
	//    pathname.insert(0, L"\\\\?\\");
	//}
	pathname += L"\\..\\..";
	DWORD len = GetFullPathNameW(pathname.c_str(),
				     0, NULL, NULL);
	wchar_t* buffer = new wchar_t[len];
	GetFullPathNameW(pathname.c_str(), len, buffer, NULL);
	mingw_path = buffer;
    }

    std::wstring programName(argv[0]);
    std::wstring basename;
    int pos = programName.rfind(L"\\");
    if (pos == programName.length())
	basename = programName;
    else
	basename = programName.substr(pos+1);
    if (basename.length() > 4) {
        std::wstring ext = basename.substr(basename.length()-4);
        if (ext == L".exe" || ext == L".com")
	    basename = basename.substr(0, basename.length()-4);
    }

    std::wstring commandLine;
    std::wstring processCommand(mingw_path);
    processCommand += L"\\usr\\bin\\env.exe";
    std::wstring scriptPath(mingw_path);
    scriptPath += L"\\usr\\bin\\" + basename;

    ArgvQuote(processCommand, commandLine, false);
    commandLine += L" ";
    ArgvQuote(scriptPath, commandLine, false);
    for (int i=1; i < argc; i++) {
	commandLine += L" ";
	ArgvQuote(argv[i], commandLine, false);
    }
    //wprintf(L"CMD: %ls\n", commandLine.c_str());

    STARTUPINFOW si = { sizeof(STARTUPINFOW) };
    PROCESS_INFORMATION pi = {};
    if (!CreateProcessW(processCommand.c_str(),
			const_cast<wchar_t*>(commandLine.c_str()),
			NULL,
			NULL,
			TRUE, // inherit handles
			0,
			NULL,
			NULL,
			&si, &pi)) {
	printf("ERROR CreateProcess\n");
	return -1;
    }

    HANDLE childProcess = pi.hProcess;
    if (!CloseHandle(pi.hThread)) {
	printf("Error CloseHandle\n");
	return -1;
    }

    DWORD r = WaitForSingleObject(childProcess, INFINITE);
    switch (r) {
    case WAIT_FAILED:
    case WAIT_ABANDONED:
	printf("Error WaitForSingleObject\n");
	return -1;
    case WAIT_OBJECT_0:
	break;
    }

    DWORD exitCode;
    if (!GetExitCodeProcess(childProcess, &exitCode)) {
	printf("Error GetExitCodeProcess\n");
	return -1;
    }
    return (int)exitCode;
}
'''

def build_cpp(cpp_prog, outfile=None):
    import subprocess, gzip, base64, tempfile, shutil, textwrap

    def onerror(func, path, exc_info):
        """
        Error handler for ``shutil.rmtree``.

        If the error is due to an access error (read only file)
        it attempts to add write permission and then retries.

        If the error is for another reason it re-raises the error.

        Usage : ``shutil.rmtree(path, onerror=onerror)``
        """
        import stat
        if not os.access(path, os.W_OK):
            # Is the error an access error ?
            os.chmod(path, stat.S_IWUSR)
            func(path)
        else:
            raise

    tmpdir = tempfile.mkdtemp()
    try:
        CL_OPTS =  "/nologo /Oi /Ox /Os /Oy /EHsc /GF /arch:IA32".split()
        LINK_OPTS = "/MD /link shell32.lib".split()

        tmpfile = os.path.join(tmpdir, "wrapper.cpp")
        objfile = os.path.join(tmpdir, "wrapper.obj")
        exefile = os.path.join(tmpdir, "wrapper.exe")

        with open(tmpfile, "wt", encoding="utf-8") as f:
            f.write(cpp_prog)

        subprocess.call(
            [ "cl" ] + CL_OPTS +
            [ "/Fe" + exefile, "/Fo" + objfile, "/utf-8", tmpfile ] +
            LINK_OPTS)

        with open(exefile, "rb") as f:
            exe = f.read()
    finally:
        shutil.rmtree(tmpdir, onerror=onerror)

    s = base64.b64encode(gzip.compress(exe)).decode("ascii")
    if outfile is None:
        print("_MINGW_WRAPPER_b64 = '''")
        print(textwrap.fill(s, width=76))
        print("'''")
    elif outfile.endswith(".exe"):
        with open(outfile, "wb") as f:
            f.write(exe)
    else:
        with open(outfile, "wt", encoding='ascii') as f:
            f.write("_MINGW_WRAPPER_b64 = '''\n")
            f.write(textwrap.fill(s, width=76))
            f.write("\n'''\n")

if __name__ == "__main__":
    if len(sys.argv) > 1 and sys.argv[1] == '--build':
        output = None
        if len(sys.argv) > 2:
            output = sys.argv[2]
        build_cpp(CPP_PROGRAM, output)
    else:
        if not os.path.isdir(bindir):
            raise Exception()

        if len(sys.argv) > 1:
            for arg in sys.argv[1:]:
                make_exefile(arg)
        else:
            for arg in find_shebang(bindir):
                make_exefile(arg)
	#! /usr/bin/env python3

	import os
	import sys
	import gzip
	import base64

	EXCLUDES = [ "cmd" ]

	cmddir = os.path.realpath(os.path.dirname(__file__))
	basedir = os.path.realpath(os.path.join(cmddir, ".."))
	bindir = os.path.realpath(os.path.join(basedir, "usr", "bin"))

	def make_exefile(name):
	name = os.path.basename(name)
	if name in EXCLUDES:
	return
	cmdfile = os.path.join(cmddir, "{:s}.cmd".format(name))
	exefile = os.path.join(cmddir, "{:s}.exe".format(name))
	if os.path.exists(cmdfile):
	os.remove(cmdfile)
	with open(exefile, "wb") as f:
	f.write(get_mingw_wrapper())

	def find_shebang(dirname):
	results = []
	for f in os.listdir(dirname):
	filename = os.path.join(dirname, f)
	if f[0] == "." or os.path.isdir(filename):
	continue
	try:
	with open(filename, "rb") as f:
	firstline = f.readline()
	if firstline.startswith(b"#!"):
	results.append(filename)
	except:
	pass
	return results

	_MINGW_WRAPPER_b64 = '''
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	'''
	_MINGW_WRAPPER = None
	def get_mingw_wrapper():
	global _MINGW_WRAPPER
	if not _MINGW_WRAPPER:
	_MINGW_WRAPPER = gzip.decompress(base64.b64decode(_MINGW_WRAPPER_b64))
	return _MINGW_WRAPPER

	CPP_PROGRAM = r'''
	#include <string>
	#include <vector>
	#include <windows.h>
	#include <tchar.h>

	#pragma comment(lib, "shell32.lib")
	#pragma optimize("gs", on)
	#pragma optimize("y", off)
	#pragma runtime_checks("scu", off)

	void
	ArgvQuote (const std::wstring& Argument,
	std::wstring& CommandLine,
	bool Force)
	/*++

	Routine Description:

	This routine appends the given argument to a command line such
	that CommandLineToArgvW will return the argument string unchanged.
	Arguments in a command line should be separated by spaces; this
	function does not add these spaces.

	Arguments:

	Argument - Supplies the argument to encode.

	CommandLine - Supplies the command line to which we append the encoded
	argument string.

	Force - Supplies an indication of whether we should quote
	the argument even if it does not contain any characters that would
	ordinarily require quoting.

	Return Value:

	None.

	Environment:

	Arbitrary.

	--*/

	{
	//
	// Unless we're told otherwise, don't quote unless we actually
	// need to do so --- hopefully avoid problems if programs won't
	// parse quotes properly
	//

	if (Force == false &&
	Argument.empty () == false &&
	Argument.find_first_of (L" \t\n\v\"") == Argument.npos) {
	CommandLine.append(Argument);
	}
	else {
	CommandLine.push_back(L'"');

	for (auto It = Argument.begin () ; ; ++It) {
	unsigned NumberBackslashes = 0;

	while (It != Argument.end () && *It == L'\\') {
	++It;
	++NumberBackslashes;
	}

	if (It == Argument.end ()) {
	//
	// Escape all backslashes, but let the terminating
	// double quotation mark we add below be interpreted
	// as a metacharacter.
	//

	CommandLine.append (NumberBackslashes * 2, L'\\');
	break;
	}
	else if (*It == L'"') {

	//
	// Escape all backslashes and the following
	// double quotation mark.
	//

	CommandLine.append(NumberBackslashes * 2 + 1, L'\\');
	CommandLine.push_back(*It);
	}
	else {

	//
	// Backslashes aren't special here.
	//

	CommandLine.append(NumberBackslashes, L'\\');
	CommandLine.push_back(*It);
	}
	}
	CommandLine.push_back(L'"');
	}
	}

	int
	main()
	{
	// 自力解析
	int argc;
	LPWSTR* argv = CommandLineToArgvW(GetCommandLineW(), &argc);

	const wchar_t* mingw_path = _wgetenv(L"MINGW_PATH");

	if (mingw_path == NULL) {
	wchar_t path[MAX_PATH*4];
	GetModuleFileNameW(NULL, path, sizeof(path)/sizeof(path[0]));
	std::wstring pathname = path;

	//if (pathname.substr(0, 4) != L"\\\\?\\") {
	// pathname.insert(0, L"\\\\?\\");
	//}
	pathname += L"\\..\\..";
	DWORD len = GetFullPathNameW(pathname.c_str(),
	0, NULL, NULL);
	wchar_t* buffer = new wchar_t[len];
	GetFullPathNameW(pathname.c_str(), len, buffer, NULL);
	mingw_path = buffer;
	}

	std::wstring programName(argv[0]);
	std::wstring basename;
	int pos = programName.rfind(L"\\");
	if (pos == programName.length())
	basename = programName;
	else
	basename = programName.substr(pos+1);
	if (basename.length() > 4) {
	std::wstring ext = basename.substr(basename.length()-4);
	if (ext == L".exe" \|\| ext == L".com")
	basename = basename.substr(0, basename.length()-4);
	}

	std::wstring commandLine;
	std::wstring processCommand(mingw_path);
	processCommand += L"\\usr\\bin\\env.exe";
	std::wstring scriptPath(mingw_path);
	scriptPath += L"\\usr\\bin\\" + basename;

	ArgvQuote(processCommand, commandLine, false);
	commandLine += L" ";
	ArgvQuote(scriptPath, commandLine, false);
	for (int i=1; i < argc; i++) {
	commandLine += L" ";
	ArgvQuote(argv[i], commandLine, false);
	}
	//wprintf(L"CMD: %ls\n", commandLine.c_str());

	STARTUPINFOW si = { sizeof(STARTUPINFOW) };
	PROCESS_INFORMATION pi = {};
	if (!CreateProcessW(processCommand.c_str(),
	const_cast<wchar_t*>(commandLine.c_str()),
	NULL,
	NULL,
	TRUE, // inherit handles
	0,
	NULL,
	NULL,
	&si, &pi)) {
	printf("ERROR CreateProcess\n");
	return -1;
	}

	HANDLE childProcess = pi.hProcess;
	if (!CloseHandle(pi.hThread)) {
	printf("Error CloseHandle\n");
	return -1;
	}

	DWORD r = WaitForSingleObject(childProcess, INFINITE);
	switch (r) {
	case WAIT_FAILED:
	case WAIT_ABANDONED:
	printf("Error WaitForSingleObject\n");
	return -1;
	case WAIT_OBJECT_0:
	break;
	}

	DWORD exitCode;
	if (!GetExitCodeProcess(childProcess, &exitCode)) {
	printf("Error GetExitCodeProcess\n");
	return -1;
	}
	return (int)exitCode;
	}
	'''

	def build_cpp(cpp_prog, outfile=None):
	import subprocess, gzip, base64, tempfile, shutil, textwrap

	def onerror(func, path, exc_info):
	"""
	Error handler for ``shutil.rmtree``.

	If the error is due to an access error (read only file)
	it attempts to add write permission and then retries.

	If the error is for another reason it re-raises the error.

	Usage : ``shutil.rmtree(path, onerror=onerror)``
	"""
	import stat
	if not os.access(path, os.W_OK):
	# Is the error an access error ?
	os.chmod(path, stat.S_IWUSR)
	func(path)
	else:
	raise

	tmpdir = tempfile.mkdtemp()
	try:
	CL_OPTS = "/nologo /Oi /Ox /Os /Oy /EHsc /GF /arch:IA32".split()
	LINK_OPTS = "/MD /link shell32.lib".split()

	tmpfile = os.path.join(tmpdir, "wrapper.cpp")
	objfile = os.path.join(tmpdir, "wrapper.obj")
	exefile = os.path.join(tmpdir, "wrapper.exe")

	with open(tmpfile, "wt", encoding="utf-8") as f:
	f.write(cpp_prog)

	subprocess.call(
	[ "cl" ] + CL_OPTS +
	[ "/Fe" + exefile, "/Fo" + objfile, "/utf-8", tmpfile ] +
	LINK_OPTS)

	with open(exefile, "rb") as f:
	exe = f.read()
	finally:
	shutil.rmtree(tmpdir, onerror=onerror)

	s = base64.b64encode(gzip.compress(exe)).decode("ascii")
	if outfile is None:
	print("_MINGW_WRAPPER_b64 = '''")
	print(textwrap.fill(s, width=76))
	print("'''")
	elif outfile.endswith(".exe"):
	with open(outfile, "wb") as f:
	f.write(exe)
	else:
	with open(outfile, "wt", encoding='ascii') as f:
	f.write("_MINGW_WRAPPER_b64 = '''\n")
	f.write(textwrap.fill(s, width=76))
	f.write("\n'''\n")

	if __name__ == "__main__":
	if len(sys.argv) > 1 and sys.argv[1] == '--build':
	output = None
	if len(sys.argv) > 2:
	output = sys.argv[2]
	build_cpp(CPP_PROGRAM, output)
	else:
	if not os.path.isdir(bindir):
	raise Exception()

	if len(sys.argv) > 1:
	for arg in sys.argv[1:]:
	make_exefile(arg)
	else:
	for arg in find_shebang(bindir):
	make_exefile(arg)