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-rw-r--r--third_party/git/compat/winansi.c681
1 files changed, 0 insertions, 681 deletions
diff --git a/third_party/git/compat/winansi.c b/third_party/git/compat/winansi.c
deleted file mode 100644
index c27b20a79d91..000000000000
--- a/third_party/git/compat/winansi.c
+++ /dev/null
@@ -1,681 +0,0 @@
-/*
- * Copyright 2008 Peter Harris <git@peter.is-a-geek.org>
- */
-
-#undef NOGDI
-#include "../git-compat-util.h"
-#include <wingdi.h>
-#include <winreg.h>
-#include "win32.h"
-#include "win32/lazyload.h"
-
-static int fd_is_interactive[3] = { 0, 0, 0 };
-#define FD_CONSOLE 0x1
-#define FD_SWAPPED 0x2
-#define FD_MSYS    0x4
-
-/*
- ANSI codes used by git: m, K
-
- This file is git-specific. Therefore, this file does not attempt
- to implement any codes that are not used by git.
-*/
-
-static HANDLE console;
-static WORD plain_attr;
-static WORD attr;
-static int negative;
-static int non_ascii_used = 0;
-static HANDLE hthread, hread, hwrite;
-static HANDLE hconsole1, hconsole2;
-
-#ifdef __MINGW32__
-#if !defined(__MINGW64_VERSION_MAJOR) || __MINGW64_VERSION_MAJOR < 5
-typedef struct _CONSOLE_FONT_INFOEX {
-	ULONG cbSize;
-	DWORD nFont;
-	COORD dwFontSize;
-	UINT FontFamily;
-	UINT FontWeight;
-	WCHAR FaceName[LF_FACESIZE];
-} CONSOLE_FONT_INFOEX, *PCONSOLE_FONT_INFOEX;
-#endif
-#endif
-
-static void warn_if_raster_font(void)
-{
-	DWORD fontFamily = 0;
-	DECLARE_PROC_ADDR(kernel32.dll, BOOL, GetCurrentConsoleFontEx,
-			HANDLE, BOOL, PCONSOLE_FONT_INFOEX);
-
-	/* don't bother if output was ascii only */
-	if (!non_ascii_used)
-		return;
-
-	/* GetCurrentConsoleFontEx is available since Vista */
-	if (INIT_PROC_ADDR(GetCurrentConsoleFontEx)) {
-		CONSOLE_FONT_INFOEX cfi;
-		cfi.cbSize = sizeof(cfi);
-		if (GetCurrentConsoleFontEx(console, 0, &cfi))
-			fontFamily = cfi.FontFamily;
-	} else {
-		/* pre-Vista: check default console font in registry */
-		HKEY hkey;
-		if (ERROR_SUCCESS == RegOpenKeyExA(HKEY_CURRENT_USER, "Console",
-				0, KEY_READ, &hkey)) {
-			DWORD size = sizeof(fontFamily);
-			RegQueryValueExA(hkey, "FontFamily", NULL, NULL,
-					(LPVOID) &fontFamily, &size);
-			RegCloseKey(hkey);
-		}
-	}
-
-	if (!(fontFamily & TMPF_TRUETYPE)) {
-		const wchar_t *msg = L"\nWarning: Your console font probably "
-			L"doesn\'t support Unicode. If you experience strange "
-			L"characters in the output, consider switching to a "
-			L"TrueType font such as Consolas!\n";
-		DWORD dummy;
-		WriteConsoleW(console, msg, wcslen(msg), &dummy, NULL);
-	}
-}
-
-static int is_console(int fd)
-{
-	CONSOLE_SCREEN_BUFFER_INFO sbi;
-	DWORD mode;
-	HANDLE hcon;
-
-	static int initialized = 0;
-
-	/* get OS handle of the file descriptor */
-	hcon = (HANDLE) _get_osfhandle(fd);
-	if (hcon == INVALID_HANDLE_VALUE)
-		return 0;
-
-	/* check if its a device (i.e. console, printer, serial port) */
-	if (GetFileType(hcon) != FILE_TYPE_CHAR)
-		return 0;
-
-	/* check if its a handle to a console output screen buffer */
-	if (!fd) {
-		if (!GetConsoleMode(hcon, &mode))
-			return 0;
-		/*
-		 * This code path is only reached if there is no console
-		 * attached to stdout/stderr, i.e. we will not need to output
-		 * any text to any console, therefore we might just as well
-		 * use black as foreground color.
-		 */
-		sbi.wAttributes = 0;
-	} else if (!GetConsoleScreenBufferInfo(hcon, &sbi))
-		return 0;
-
-	if (fd >= 0 && fd <= 2)
-		fd_is_interactive[fd] |= FD_CONSOLE;
-
-	/* initialize attributes */
-	if (!initialized) {
-		console = hcon;
-		attr = plain_attr = sbi.wAttributes;
-		negative = 0;
-		initialized = 1;
-	}
-
-	return 1;
-}
-
-#define BUFFER_SIZE 4096
-#define MAX_PARAMS 16
-
-static void write_console(unsigned char *str, size_t len)
-{
-	/* only called from console_thread, so a static buffer will do */
-	static wchar_t wbuf[2 * BUFFER_SIZE + 1];
-	DWORD dummy;
-
-	/* convert utf-8 to utf-16 */
-	int wlen = xutftowcsn(wbuf, (char*) str, ARRAY_SIZE(wbuf), len);
-	if (wlen < 0) {
-		wchar_t *err = L"[invalid]";
-		WriteConsoleW(console, err, wcslen(err), &dummy, NULL);
-		return;
-	}
-
-	/* write directly to console */
-	WriteConsoleW(console, wbuf, wlen, &dummy, NULL);
-
-	/* remember if non-ascii characters are printed */
-	if (wlen != len)
-		non_ascii_used = 1;
-}
-
-#define FOREGROUND_ALL (FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE)
-#define BACKGROUND_ALL (BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE)
-
-static void set_console_attr(void)
-{
-	WORD attributes = attr;
-	if (negative) {
-		attributes &= ~FOREGROUND_ALL;
-		attributes &= ~BACKGROUND_ALL;
-
-		/* This could probably use a bitmask
-		   instead of a series of ifs */
-		if (attr & FOREGROUND_RED)
-			attributes |= BACKGROUND_RED;
-		if (attr & FOREGROUND_GREEN)
-			attributes |= BACKGROUND_GREEN;
-		if (attr & FOREGROUND_BLUE)
-			attributes |= BACKGROUND_BLUE;
-
-		if (attr & BACKGROUND_RED)
-			attributes |= FOREGROUND_RED;
-		if (attr & BACKGROUND_GREEN)
-			attributes |= FOREGROUND_GREEN;
-		if (attr & BACKGROUND_BLUE)
-			attributes |= FOREGROUND_BLUE;
-	}
-	SetConsoleTextAttribute(console, attributes);
-}
-
-static void erase_in_line(void)
-{
-	CONSOLE_SCREEN_BUFFER_INFO sbi;
-	DWORD dummy; /* Needed for Windows 7 (or Vista) regression */
-
-	if (!console)
-		return;
-
-	GetConsoleScreenBufferInfo(console, &sbi);
-	FillConsoleOutputCharacterA(console, ' ',
-		sbi.dwSize.X - sbi.dwCursorPosition.X, sbi.dwCursorPosition,
-		&dummy);
-}
-
-static void set_attr(char func, const int *params, int paramlen)
-{
-	int i;
-	switch (func) {
-	case 'm':
-		for (i = 0; i < paramlen; i++) {
-			switch (params[i]) {
-			case 0: /* reset */
-				attr = plain_attr;
-				negative = 0;
-				break;
-			case 1: /* bold */
-				attr |= FOREGROUND_INTENSITY;
-				break;
-			case 2:  /* faint */
-			case 22: /* normal */
-				attr &= ~FOREGROUND_INTENSITY;
-				break;
-			case 3:  /* italic */
-				/* Unsupported */
-				break;
-			case 4:  /* underline */
-			case 21: /* double underline */
-				/* Wikipedia says this flag does nothing */
-				/* Furthermore, mingw doesn't define this flag
-				attr |= COMMON_LVB_UNDERSCORE; */
-				break;
-			case 24: /* no underline */
-				/* attr &= ~COMMON_LVB_UNDERSCORE; */
-				break;
-			case 5:  /* slow blink */
-			case 6:  /* fast blink */
-				/* We don't have blink, but we do have
-				   background intensity */
-				attr |= BACKGROUND_INTENSITY;
-				break;
-			case 25: /* no blink */
-				attr &= ~BACKGROUND_INTENSITY;
-				break;
-			case 7:  /* negative */
-				negative = 1;
-				break;
-			case 27: /* positive */
-				negative = 0;
-				break;
-			case 8:  /* conceal */
-			case 28: /* reveal */
-				/* Unsupported */
-				break;
-			case 30: /* Black */
-				attr &= ~FOREGROUND_ALL;
-				break;
-			case 31: /* Red */
-				attr &= ~FOREGROUND_ALL;
-				attr |= FOREGROUND_RED;
-				break;
-			case 32: /* Green */
-				attr &= ~FOREGROUND_ALL;
-				attr |= FOREGROUND_GREEN;
-				break;
-			case 33: /* Yellow */
-				attr &= ~FOREGROUND_ALL;
-				attr |= FOREGROUND_RED | FOREGROUND_GREEN;
-				break;
-			case 34: /* Blue */
-				attr &= ~FOREGROUND_ALL;
-				attr |= FOREGROUND_BLUE;
-				break;
-			case 35: /* Magenta */
-				attr &= ~FOREGROUND_ALL;
-				attr |= FOREGROUND_RED | FOREGROUND_BLUE;
-				break;
-			case 36: /* Cyan */
-				attr &= ~FOREGROUND_ALL;
-				attr |= FOREGROUND_GREEN | FOREGROUND_BLUE;
-				break;
-			case 37: /* White */
-				attr |= FOREGROUND_RED |
-					FOREGROUND_GREEN |
-					FOREGROUND_BLUE;
-				break;
-			case 38: /* Unknown */
-				break;
-			case 39: /* reset */
-				attr &= ~FOREGROUND_ALL;
-				attr |= (plain_attr & FOREGROUND_ALL);
-				break;
-			case 40: /* Black */
-				attr &= ~BACKGROUND_ALL;
-				break;
-			case 41: /* Red */
-				attr &= ~BACKGROUND_ALL;
-				attr |= BACKGROUND_RED;
-				break;
-			case 42: /* Green */
-				attr &= ~BACKGROUND_ALL;
-				attr |= BACKGROUND_GREEN;
-				break;
-			case 43: /* Yellow */
-				attr &= ~BACKGROUND_ALL;
-				attr |= BACKGROUND_RED | BACKGROUND_GREEN;
-				break;
-			case 44: /* Blue */
-				attr &= ~BACKGROUND_ALL;
-				attr |= BACKGROUND_BLUE;
-				break;
-			case 45: /* Magenta */
-				attr &= ~BACKGROUND_ALL;
-				attr |= BACKGROUND_RED | BACKGROUND_BLUE;
-				break;
-			case 46: /* Cyan */
-				attr &= ~BACKGROUND_ALL;
-				attr |= BACKGROUND_GREEN | BACKGROUND_BLUE;
-				break;
-			case 47: /* White */
-				attr |= BACKGROUND_RED |
-					BACKGROUND_GREEN |
-					BACKGROUND_BLUE;
-				break;
-			case 48: /* Unknown */
-				break;
-			case 49: /* reset */
-				attr &= ~BACKGROUND_ALL;
-				attr |= (plain_attr & BACKGROUND_ALL);
-				break;
-			default:
-				/* Unsupported code */
-				break;
-			}
-		}
-		set_console_attr();
-		break;
-	case 'K':
-		erase_in_line();
-		break;
-	default:
-		/* Unsupported code */
-		break;
-	}
-}
-
-enum {
-	TEXT = 0, ESCAPE = 033, BRACKET = '['
-};
-
-static DWORD WINAPI console_thread(LPVOID unused)
-{
-	unsigned char buffer[BUFFER_SIZE];
-	DWORD bytes;
-	int start, end = 0, c, parampos = 0, state = TEXT;
-	int params[MAX_PARAMS];
-
-	while (1) {
-		/* read next chunk of bytes from the pipe */
-		if (!ReadFile(hread, buffer + end, BUFFER_SIZE - end, &bytes,
-				NULL)) {
-			/* exit if pipe has been closed or disconnected */
-			if (GetLastError() == ERROR_PIPE_NOT_CONNECTED ||
-					GetLastError() == ERROR_BROKEN_PIPE)
-				break;
-			/* ignore other errors */
-			continue;
-		}
-
-		/* scan the bytes and handle ANSI control codes */
-		bytes += end;
-		start = end = 0;
-		while (end < bytes) {
-			c = buffer[end++];
-			switch (state) {
-			case TEXT:
-				if (c == ESCAPE) {
-					/* print text seen so far */
-					if (end - 1 > start)
-						write_console(buffer + start,
-							end - 1 - start);
-
-					/* then start parsing escape sequence */
-					start = end - 1;
-					memset(params, 0, sizeof(params));
-					parampos = 0;
-					state = ESCAPE;
-				}
-				break;
-
-			case ESCAPE:
-				/* continue if "\033[", otherwise bail out */
-				state = (c == BRACKET) ? BRACKET : TEXT;
-				break;
-
-			case BRACKET:
-				/* parse [0-9;]* into array of parameters */
-				if (c >= '0' && c <= '9') {
-					params[parampos] *= 10;
-					params[parampos] += c - '0';
-				} else if (c == ';') {
-					/*
-					 * next parameter, bail out if out of
-					 * bounds
-					 */
-					parampos++;
-					if (parampos >= MAX_PARAMS)
-						state = TEXT;
-				} else {
-					/*
-					 * end of escape sequence, change
-					 * console attributes
-					 */
-					set_attr(c, params, parampos + 1);
-					start = end;
-					state = TEXT;
-				}
-				break;
-			}
-		}
-
-		/* print remaining text unless parsing an escape sequence */
-		if (state == TEXT && end > start) {
-			/* check for incomplete UTF-8 sequences and fix end */
-			if (buffer[end - 1] >= 0x80) {
-				if (buffer[end -1] >= 0xc0)
-					end--;
-				else if (end - 1 > start &&
-						buffer[end - 2] >= 0xe0)
-					end -= 2;
-				else if (end - 2 > start &&
-						buffer[end - 3] >= 0xf0)
-					end -= 3;
-			}
-
-			/* print remaining complete UTF-8 sequences */
-			if (end > start)
-				write_console(buffer + start, end - start);
-
-			/* move remaining bytes to the front */
-			if (end < bytes)
-				memmove(buffer, buffer + end, bytes - end);
-			end = bytes - end;
-		} else {
-			/* all data has been consumed, mark buffer empty */
-			end = 0;
-		}
-	}
-
-	/* check if the console font supports unicode */
-	warn_if_raster_font();
-
-	CloseHandle(hread);
-	return 0;
-}
-
-static void winansi_exit(void)
-{
-	/* flush all streams */
-	_flushall();
-
-	/* signal console thread to exit */
-	FlushFileBuffers(hwrite);
-	DisconnectNamedPipe(hwrite);
-
-	/* wait for console thread to copy remaining data */
-	WaitForSingleObject(hthread, INFINITE);
-
-	/* cleanup handles... */
-	CloseHandle(hwrite);
-	CloseHandle(hthread);
-}
-
-static void die_lasterr(const char *fmt, ...)
-{
-	va_list params;
-	va_start(params, fmt);
-	errno = err_win_to_posix(GetLastError());
-	die_errno(fmt, params);
-	va_end(params);
-}
-
-#undef dup2
-int winansi_dup2(int oldfd, int newfd)
-{
-	int ret = dup2(oldfd, newfd);
-
-	if (!ret && newfd >= 0 && newfd <= 2)
-		fd_is_interactive[newfd] = oldfd < 0 || oldfd > 2 ?
-			0 : fd_is_interactive[oldfd];
-
-	return ret;
-}
-
-static HANDLE duplicate_handle(HANDLE hnd)
-{
-	HANDLE hresult, hproc = GetCurrentProcess();
-	if (!DuplicateHandle(hproc, hnd, hproc, &hresult, 0, TRUE,
-			DUPLICATE_SAME_ACCESS))
-		die_lasterr("DuplicateHandle(%li) failed",
-			(long) (intptr_t) hnd);
-	return hresult;
-}
-
-static HANDLE swap_osfhnd(int fd, HANDLE new_handle)
-{
-	/*
-	 * Create a copy of the original handle associated with fd
-	 * because the original will get closed when we dup2().
-	 */
-	HANDLE handle = (HANDLE)_get_osfhandle(fd);
-	HANDLE duplicate = duplicate_handle(handle);
-
-	/* Create a temp fd associated with the already open "new_handle". */
-	int new_fd = _open_osfhandle((intptr_t)new_handle, O_BINARY);
-
-	assert((fd == 1) || (fd == 2));
-
-	/*
-	 * Use stock dup2() to re-bind fd to the new handle.  Note that
-	 * this will implicitly close(1) and close both fd=1 and the
-	 * originally associated handle.  It will open a new fd=1 and
-	 * call DuplicateHandle() on the handle associated with new_fd.
-	 * It is because of this implicit close() that we created the
-	 * copy of the original.
-	 *
-	 * Note that we need to update the cached console handle to the
-	 * duplicated one because the dup2() call will implicitly close
-	 * the original one.
-	 *
-	 * Note that dup2() when given target := {0,1,2} will also
-	 * call SetStdHandle(), so we don't need to worry about that.
-	 */
-	if (console == handle)
-		console = duplicate;
-	dup2(new_fd, fd);
-
-	/* Close the temp fd.  This explicitly closes "new_handle"
-	 * (because it has been associated with it).
-	 */
-	close(new_fd);
-
-	if (fd == 2)
-		setvbuf(stderr, NULL, _IONBF, BUFSIZ);
-	fd_is_interactive[fd] |= FD_SWAPPED;
-
-	return duplicate;
-}
-
-#ifdef DETECT_MSYS_TTY
-
-#include <winternl.h>
-
-#if defined(_MSC_VER)
-
-typedef struct _OBJECT_NAME_INFORMATION
-{
-	UNICODE_STRING Name;
-	WCHAR NameBuffer[FLEX_ARRAY];
-} OBJECT_NAME_INFORMATION, *POBJECT_NAME_INFORMATION;
-
-#define ObjectNameInformation 1
-
-#else
-#include <ntstatus.h>
-#endif
-
-static void detect_msys_tty(int fd)
-{
-	ULONG result;
-	BYTE buffer[1024];
-	POBJECT_NAME_INFORMATION nameinfo = (POBJECT_NAME_INFORMATION) buffer;
-	PWSTR name;
-
-	/* check if fd is a pipe */
-	HANDLE h = (HANDLE) _get_osfhandle(fd);
-	if (GetFileType(h) != FILE_TYPE_PIPE)
-		return;
-
-	/* get pipe name */
-	if (!NT_SUCCESS(NtQueryObject(h, ObjectNameInformation,
-			buffer, sizeof(buffer) - 2, &result)))
-		return;
-	name = nameinfo->Name.Buffer;
-	name[nameinfo->Name.Length / sizeof(*name)] = 0;
-
-	/*
-	 * Check if this could be a MSYS2 pty pipe ('msys-XXXX-ptyN-XX')
-	 * or a cygwin pty pipe ('cygwin-XXXX-ptyN-XX')
-	 */
-	if ((!wcsstr(name, L"msys-") && !wcsstr(name, L"cygwin-")) ||
-			!wcsstr(name, L"-pty"))
-		return;
-
-	if (fd == 2)
-		setvbuf(stderr, NULL, _IONBF, BUFSIZ);
-	fd_is_interactive[fd] |= FD_MSYS;
-}
-
-#endif
-
-/*
- * Wrapper for isatty().  Most calls in the main git code
- * call isatty(1 or 2) to see if the instance is interactive
- * and should: be colored, show progress, paginate output.
- * We lie and give results for what the descriptor WAS at
- * startup (and ignore any pipe redirection we internally
- * do).
- */
-#undef isatty
-int winansi_isatty(int fd)
-{
-	if (fd >= 0 && fd <= 2)
-		return fd_is_interactive[fd] != 0;
-	return isatty(fd);
-}
-
-void winansi_init(void)
-{
-	int con1, con2;
-	wchar_t name[32];
-
-	/* check if either stdout or stderr is a console output screen buffer */
-	con1 = is_console(1);
-	con2 = is_console(2);
-
-	/* Also compute console bit for fd 0 even though we don't need the result here. */
-	is_console(0);
-
-	if (!con1 && !con2) {
-#ifdef DETECT_MSYS_TTY
-		/* check if stdin / stdout / stderr are MSYS2 pty pipes */
-		detect_msys_tty(0);
-		detect_msys_tty(1);
-		detect_msys_tty(2);
-#endif
-		return;
-	}
-
-	/* create a named pipe to communicate with the console thread */
-	if (swprintf(name, ARRAY_SIZE(name) - 1, L"\\\\.\\pipe\\winansi%lu",
-		     GetCurrentProcessId()) < 0)
-		die("Could not initialize winansi pipe name");
-	hwrite = CreateNamedPipeW(name, PIPE_ACCESS_OUTBOUND,
-		PIPE_TYPE_BYTE | PIPE_WAIT, 1, BUFFER_SIZE, 0, 0, NULL);
-	if (hwrite == INVALID_HANDLE_VALUE)
-		die_lasterr("CreateNamedPipe failed");
-
-	hread = CreateFileW(name, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
-	if (hread == INVALID_HANDLE_VALUE)
-		die_lasterr("CreateFile for named pipe failed");
-
-	/* start console spool thread on the pipe's read end */
-	hthread = CreateThread(NULL, 0, console_thread, NULL, 0, NULL);
-	if (hthread == INVALID_HANDLE_VALUE)
-		die_lasterr("CreateThread(console_thread) failed");
-
-	/* schedule cleanup routine */
-	if (atexit(winansi_exit))
-		die_errno("atexit(winansi_exit) failed");
-
-	/* redirect stdout / stderr to the pipe */
-	if (con1)
-		hconsole1 = swap_osfhnd(1, duplicate_handle(hwrite));
-	if (con2)
-		hconsole2 = swap_osfhnd(2, duplicate_handle(hwrite));
-}
-
-/*
- * Returns the real console handle if stdout / stderr is a pipe redirecting
- * to the console. Allows spawn / exec to pass the console to the next process.
- */
-HANDLE winansi_get_osfhandle(int fd)
-{
-	HANDLE ret;
-
-	if (fd == 1 && (fd_is_interactive[1] & FD_SWAPPED))
-		return hconsole1;
-	if (fd == 2 && (fd_is_interactive[2] & FD_SWAPPED))
-		return hconsole2;
-
-	ret = (HANDLE)_get_osfhandle(fd);
-
-	/*
-	 * There are obviously circumstances under which _get_osfhandle()
-	 * returns (HANDLE)-2. This is not documented anywhere, but that is so
-	 * clearly an invalid handle value that we can just work around this
-	 * and return the correct value for invalid handles.
-	 */
-	return ret == (HANDLE)-2 ? INVALID_HANDLE_VALUE : ret;
-}