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Commit | Line | Data |
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c09df8a7 PH |
1 | /* |
2 | * Copyright 2008 Peter Harris <git@peter.is-a-geek.org> | |
3 | */ | |
4 | ||
1edeb9ab | 5 | #undef NOGDI |
c09df8a7 | 6 | #include "../git-compat-util.h" |
1edeb9ab KB |
7 | #include <wingdi.h> |
8 | #include <winreg.h> | |
a9b8a09c | 9 | #include "win32.h" |
c09df8a7 | 10 | |
a9b8a09c JH |
11 | static int fd_is_interactive[3] = { 0, 0, 0 }; |
12 | #define FD_CONSOLE 0x1 | |
13 | #define FD_SWAPPED 0x2 | |
14 | #define FD_MSYS 0x4 | |
cbb3f3c9 | 15 | |
c09df8a7 PH |
16 | /* |
17 | ANSI codes used by git: m, K | |
18 | ||
19 | This file is git-specific. Therefore, this file does not attempt | |
20 | to implement any codes that are not used by git. | |
c09df8a7 PH |
21 | */ |
22 | ||
23 | static HANDLE console; | |
24 | static WORD plain_attr; | |
25 | static WORD attr; | |
26 | static int negative; | |
eac14f89 KB |
27 | static int non_ascii_used = 0; |
28 | static HANDLE hthread, hread, hwrite; | |
eac14f89 | 29 | static HANDLE hconsole1, hconsole2; |
c09df8a7 | 30 | |
1edeb9ab | 31 | #ifdef __MINGW32__ |
466931d9 | 32 | #if !defined(__MINGW64_VERSION_MAJOR) || __MINGW64_VERSION_MAJOR < 5 |
1edeb9ab KB |
33 | typedef struct _CONSOLE_FONT_INFOEX { |
34 | ULONG cbSize; | |
35 | DWORD nFont; | |
36 | COORD dwFontSize; | |
37 | UINT FontFamily; | |
38 | UINT FontWeight; | |
39 | WCHAR FaceName[LF_FACESIZE]; | |
40 | } CONSOLE_FONT_INFOEX, *PCONSOLE_FONT_INFOEX; | |
41 | #endif | |
466931d9 | 42 | #endif |
1edeb9ab KB |
43 | |
44 | typedef BOOL (WINAPI *PGETCURRENTCONSOLEFONTEX)(HANDLE, BOOL, | |
45 | PCONSOLE_FONT_INFOEX); | |
46 | ||
eac14f89 | 47 | static void warn_if_raster_font(void) |
1edeb9ab | 48 | { |
1edeb9ab KB |
49 | DWORD fontFamily = 0; |
50 | PGETCURRENTCONSOLEFONTEX pGetCurrentConsoleFontEx; | |
51 | ||
eac14f89 KB |
52 | /* don't bother if output was ascii only */ |
53 | if (!non_ascii_used) | |
1edeb9ab | 54 | return; |
1edeb9ab KB |
55 | |
56 | /* GetCurrentConsoleFontEx is available since Vista */ | |
57 | pGetCurrentConsoleFontEx = (PGETCURRENTCONSOLEFONTEX) GetProcAddress( | |
eac14f89 KB |
58 | GetModuleHandle("kernel32.dll"), |
59 | "GetCurrentConsoleFontEx"); | |
1edeb9ab KB |
60 | if (pGetCurrentConsoleFontEx) { |
61 | CONSOLE_FONT_INFOEX cfi; | |
62 | cfi.cbSize = sizeof(cfi); | |
63 | if (pGetCurrentConsoleFontEx(console, 0, &cfi)) | |
64 | fontFamily = cfi.FontFamily; | |
65 | } else { | |
66 | /* pre-Vista: check default console font in registry */ | |
67 | HKEY hkey; | |
eac14f89 KB |
68 | if (ERROR_SUCCESS == RegOpenKeyExA(HKEY_CURRENT_USER, "Console", |
69 | 0, KEY_READ, &hkey)) { | |
1edeb9ab KB |
70 | DWORD size = sizeof(fontFamily); |
71 | RegQueryValueExA(hkey, "FontFamily", NULL, NULL, | |
72 | (LPVOID) &fontFamily, &size); | |
73 | RegCloseKey(hkey); | |
74 | } | |
75 | } | |
76 | ||
eac14f89 KB |
77 | if (!(fontFamily & TMPF_TRUETYPE)) { |
78 | const wchar_t *msg = L"\nWarning: Your console font probably " | |
79 | L"doesn\'t support Unicode. If you experience strange " | |
80 | L"characters in the output, consider switching to a " | |
81 | L"TrueType font such as Consolas!\n"; | |
82 | DWORD dummy; | |
83 | WriteConsoleW(console, msg, wcslen(msg), &dummy, NULL); | |
84 | } | |
1edeb9ab KB |
85 | } |
86 | ||
eac14f89 | 87 | static int is_console(int fd) |
c09df8a7 PH |
88 | { |
89 | CONSOLE_SCREEN_BUFFER_INFO sbi; | |
fee807c5 | 90 | DWORD mode; |
143e6152 | 91 | HANDLE hcon; |
c09df8a7 PH |
92 | |
93 | static int initialized = 0; | |
c09df8a7 | 94 | |
eac14f89 KB |
95 | /* get OS handle of the file descriptor */ |
96 | hcon = (HANDLE) _get_osfhandle(fd); | |
143e6152 KB |
97 | if (hcon == INVALID_HANDLE_VALUE) |
98 | return 0; | |
99 | ||
eac14f89 KB |
100 | /* check if its a device (i.e. console, printer, serial port) */ |
101 | if (GetFileType(hcon) != FILE_TYPE_CHAR) | |
102 | return 0; | |
103 | ||
143e6152 | 104 | /* check if its a handle to a console output screen buffer */ |
fee807c5 JS |
105 | if (!fd) { |
106 | if (!GetConsoleMode(hcon, &mode)) | |
107 | return 0; | |
3057da5a JS |
108 | /* |
109 | * This code path is only reached if there is no console | |
110 | * attached to stdout/stderr, i.e. we will not need to output | |
111 | * any text to any console, therefore we might just as well | |
112 | * use black as foreground color. | |
113 | */ | |
114 | sbi.wAttributes = 0; | |
fee807c5 | 115 | } else if (!GetConsoleScreenBufferInfo(hcon, &sbi)) |
143e6152 KB |
116 | return 0; |
117 | ||
a9b8a09c JH |
118 | if (fd >= 0 && fd <= 2) |
119 | fd_is_interactive[fd] |= FD_CONSOLE; | |
120 | ||
eac14f89 | 121 | /* initialize attributes */ |
143e6152 | 122 | if (!initialized) { |
fcd428f4 | 123 | console = hcon; |
143e6152 KB |
124 | attr = plain_attr = sbi.wAttributes; |
125 | negative = 0; | |
126 | initialized = 1; | |
127 | } | |
c09df8a7 | 128 | |
143e6152 | 129 | return 1; |
c09df8a7 PH |
130 | } |
131 | ||
eac14f89 KB |
132 | #define BUFFER_SIZE 4096 |
133 | #define MAX_PARAMS 16 | |
134 | ||
135 | static void write_console(unsigned char *str, size_t len) | |
617ce965 | 136 | { |
eac14f89 KB |
137 | /* only called from console_thread, so a static buffer will do */ |
138 | static wchar_t wbuf[2 * BUFFER_SIZE + 1]; | |
139 | DWORD dummy; | |
617ce965 | 140 | |
eac14f89 KB |
141 | /* convert utf-8 to utf-16 */ |
142 | int wlen = xutftowcsn(wbuf, (char*) str, ARRAY_SIZE(wbuf), len); | |
b6b066ad JS |
143 | if (wlen < 0) { |
144 | wchar_t *err = L"[invalid]"; | |
145 | WriteConsoleW(console, err, wcslen(err), &dummy, NULL); | |
146 | return; | |
147 | } | |
617ce965 | 148 | |
eac14f89 KB |
149 | /* write directly to console */ |
150 | WriteConsoleW(console, wbuf, wlen, &dummy, NULL); | |
1edeb9ab | 151 | |
eac14f89 KB |
152 | /* remember if non-ascii characters are printed */ |
153 | if (wlen != len) | |
154 | non_ascii_used = 1; | |
617ce965 | 155 | } |
c09df8a7 PH |
156 | |
157 | #define FOREGROUND_ALL (FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE) | |
158 | #define BACKGROUND_ALL (BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE) | |
159 | ||
160 | static void set_console_attr(void) | |
161 | { | |
162 | WORD attributes = attr; | |
163 | if (negative) { | |
164 | attributes &= ~FOREGROUND_ALL; | |
165 | attributes &= ~BACKGROUND_ALL; | |
166 | ||
167 | /* This could probably use a bitmask | |
168 | instead of a series of ifs */ | |
169 | if (attr & FOREGROUND_RED) | |
170 | attributes |= BACKGROUND_RED; | |
171 | if (attr & FOREGROUND_GREEN) | |
172 | attributes |= BACKGROUND_GREEN; | |
173 | if (attr & FOREGROUND_BLUE) | |
174 | attributes |= BACKGROUND_BLUE; | |
175 | ||
176 | if (attr & BACKGROUND_RED) | |
177 | attributes |= FOREGROUND_RED; | |
178 | if (attr & BACKGROUND_GREEN) | |
179 | attributes |= FOREGROUND_GREEN; | |
180 | if (attr & BACKGROUND_BLUE) | |
181 | attributes |= FOREGROUND_BLUE; | |
182 | } | |
183 | SetConsoleTextAttribute(console, attributes); | |
184 | } | |
185 | ||
1897713f JS |
186 | static void erase_in_line(void) |
187 | { | |
188 | CONSOLE_SCREEN_BUFFER_INFO sbi; | |
492f7091 | 189 | DWORD dummy; /* Needed for Windows 7 (or Vista) regression */ |
1897713f JS |
190 | |
191 | if (!console) | |
192 | return; | |
193 | ||
194 | GetConsoleScreenBufferInfo(console, &sbi); | |
195 | FillConsoleOutputCharacterA(console, ' ', | |
196 | sbi.dwSize.X - sbi.dwCursorPosition.X, sbi.dwCursorPosition, | |
492f7091 | 197 | &dummy); |
1897713f JS |
198 | } |
199 | ||
eac14f89 | 200 | static void set_attr(char func, const int *params, int paramlen) |
c09df8a7 | 201 | { |
eac14f89 KB |
202 | int i; |
203 | switch (func) { | |
c09df8a7 | 204 | case 'm': |
eac14f89 KB |
205 | for (i = 0; i < paramlen; i++) { |
206 | switch (params[i]) { | |
c09df8a7 PH |
207 | case 0: /* reset */ |
208 | attr = plain_attr; | |
209 | negative = 0; | |
210 | break; | |
211 | case 1: /* bold */ | |
212 | attr |= FOREGROUND_INTENSITY; | |
213 | break; | |
214 | case 2: /* faint */ | |
215 | case 22: /* normal */ | |
216 | attr &= ~FOREGROUND_INTENSITY; | |
217 | break; | |
218 | case 3: /* italic */ | |
219 | /* Unsupported */ | |
220 | break; | |
221 | case 4: /* underline */ | |
222 | case 21: /* double underline */ | |
223 | /* Wikipedia says this flag does nothing */ | |
224 | /* Furthermore, mingw doesn't define this flag | |
225 | attr |= COMMON_LVB_UNDERSCORE; */ | |
226 | break; | |
227 | case 24: /* no underline */ | |
228 | /* attr &= ~COMMON_LVB_UNDERSCORE; */ | |
229 | break; | |
230 | case 5: /* slow blink */ | |
231 | case 6: /* fast blink */ | |
232 | /* We don't have blink, but we do have | |
233 | background intensity */ | |
234 | attr |= BACKGROUND_INTENSITY; | |
235 | break; | |
236 | case 25: /* no blink */ | |
237 | attr &= ~BACKGROUND_INTENSITY; | |
238 | break; | |
239 | case 7: /* negative */ | |
240 | negative = 1; | |
241 | break; | |
242 | case 27: /* positive */ | |
243 | negative = 0; | |
244 | break; | |
245 | case 8: /* conceal */ | |
246 | case 28: /* reveal */ | |
247 | /* Unsupported */ | |
248 | break; | |
249 | case 30: /* Black */ | |
250 | attr &= ~FOREGROUND_ALL; | |
251 | break; | |
252 | case 31: /* Red */ | |
253 | attr &= ~FOREGROUND_ALL; | |
254 | attr |= FOREGROUND_RED; | |
255 | break; | |
256 | case 32: /* Green */ | |
257 | attr &= ~FOREGROUND_ALL; | |
258 | attr |= FOREGROUND_GREEN; | |
259 | break; | |
260 | case 33: /* Yellow */ | |
261 | attr &= ~FOREGROUND_ALL; | |
262 | attr |= FOREGROUND_RED | FOREGROUND_GREEN; | |
263 | break; | |
264 | case 34: /* Blue */ | |
265 | attr &= ~FOREGROUND_ALL; | |
266 | attr |= FOREGROUND_BLUE; | |
267 | break; | |
268 | case 35: /* Magenta */ | |
269 | attr &= ~FOREGROUND_ALL; | |
270 | attr |= FOREGROUND_RED | FOREGROUND_BLUE; | |
271 | break; | |
272 | case 36: /* Cyan */ | |
273 | attr &= ~FOREGROUND_ALL; | |
274 | attr |= FOREGROUND_GREEN | FOREGROUND_BLUE; | |
275 | break; | |
276 | case 37: /* White */ | |
277 | attr |= FOREGROUND_RED | | |
278 | FOREGROUND_GREEN | | |
279 | FOREGROUND_BLUE; | |
280 | break; | |
281 | case 38: /* Unknown */ | |
282 | break; | |
283 | case 39: /* reset */ | |
284 | attr &= ~FOREGROUND_ALL; | |
285 | attr |= (plain_attr & FOREGROUND_ALL); | |
286 | break; | |
287 | case 40: /* Black */ | |
288 | attr &= ~BACKGROUND_ALL; | |
289 | break; | |
290 | case 41: /* Red */ | |
291 | attr &= ~BACKGROUND_ALL; | |
292 | attr |= BACKGROUND_RED; | |
293 | break; | |
294 | case 42: /* Green */ | |
295 | attr &= ~BACKGROUND_ALL; | |
296 | attr |= BACKGROUND_GREEN; | |
297 | break; | |
298 | case 43: /* Yellow */ | |
299 | attr &= ~BACKGROUND_ALL; | |
300 | attr |= BACKGROUND_RED | BACKGROUND_GREEN; | |
301 | break; | |
302 | case 44: /* Blue */ | |
303 | attr &= ~BACKGROUND_ALL; | |
304 | attr |= BACKGROUND_BLUE; | |
305 | break; | |
306 | case 45: /* Magenta */ | |
307 | attr &= ~BACKGROUND_ALL; | |
308 | attr |= BACKGROUND_RED | BACKGROUND_BLUE; | |
309 | break; | |
310 | case 46: /* Cyan */ | |
311 | attr &= ~BACKGROUND_ALL; | |
312 | attr |= BACKGROUND_GREEN | BACKGROUND_BLUE; | |
313 | break; | |
314 | case 47: /* White */ | |
315 | attr |= BACKGROUND_RED | | |
316 | BACKGROUND_GREEN | | |
317 | BACKGROUND_BLUE; | |
318 | break; | |
319 | case 48: /* Unknown */ | |
320 | break; | |
321 | case 49: /* reset */ | |
322 | attr &= ~BACKGROUND_ALL; | |
323 | attr |= (plain_attr & BACKGROUND_ALL); | |
324 | break; | |
325 | default: | |
326 | /* Unsupported code */ | |
327 | break; | |
328 | } | |
eac14f89 | 329 | } |
c09df8a7 PH |
330 | set_console_attr(); |
331 | break; | |
332 | case 'K': | |
1897713f | 333 | erase_in_line(); |
c09df8a7 PH |
334 | break; |
335 | default: | |
336 | /* Unsupported code */ | |
337 | break; | |
338 | } | |
c09df8a7 PH |
339 | } |
340 | ||
eac14f89 KB |
341 | enum { |
342 | TEXT = 0, ESCAPE = 033, BRACKET = '[' | |
343 | }; | |
c09df8a7 | 344 | |
eac14f89 KB |
345 | static DWORD WINAPI console_thread(LPVOID unused) |
346 | { | |
347 | unsigned char buffer[BUFFER_SIZE]; | |
348 | DWORD bytes; | |
349 | int start, end = 0, c, parampos = 0, state = TEXT; | |
350 | int params[MAX_PARAMS]; | |
351 | ||
352 | while (1) { | |
353 | /* read next chunk of bytes from the pipe */ | |
354 | if (!ReadFile(hread, buffer + end, BUFFER_SIZE - end, &bytes, | |
355 | NULL)) { | |
356 | /* exit if pipe has been closed or disconnected */ | |
357 | if (GetLastError() == ERROR_PIPE_NOT_CONNECTED || | |
358 | GetLastError() == ERROR_BROKEN_PIPE) | |
359 | break; | |
360 | /* ignore other errors */ | |
361 | continue; | |
362 | } | |
617ce965 | 363 | |
eac14f89 KB |
364 | /* scan the bytes and handle ANSI control codes */ |
365 | bytes += end; | |
366 | start = end = 0; | |
367 | while (end < bytes) { | |
368 | c = buffer[end++]; | |
369 | switch (state) { | |
370 | case TEXT: | |
371 | if (c == ESCAPE) { | |
372 | /* print text seen so far */ | |
373 | if (end - 1 > start) | |
374 | write_console(buffer + start, | |
375 | end - 1 - start); | |
376 | ||
377 | /* then start parsing escape sequence */ | |
378 | start = end - 1; | |
379 | memset(params, 0, sizeof(params)); | |
380 | parampos = 0; | |
381 | state = ESCAPE; | |
382 | } | |
383 | break; | |
384 | ||
385 | case ESCAPE: | |
386 | /* continue if "\033[", otherwise bail out */ | |
387 | state = (c == BRACKET) ? BRACKET : TEXT; | |
388 | break; | |
389 | ||
390 | case BRACKET: | |
391 | /* parse [0-9;]* into array of parameters */ | |
392 | if (c >= '0' && c <= '9') { | |
393 | params[parampos] *= 10; | |
394 | params[parampos] += c - '0'; | |
395 | } else if (c == ';') { | |
396 | /* | |
397 | * next parameter, bail out if out of | |
398 | * bounds | |
399 | */ | |
400 | parampos++; | |
401 | if (parampos >= MAX_PARAMS) | |
402 | state = TEXT; | |
403 | } else { | |
404 | /* | |
405 | * end of escape sequence, change | |
406 | * console attributes | |
407 | */ | |
408 | set_attr(c, params, parampos + 1); | |
409 | start = end; | |
410 | state = TEXT; | |
411 | } | |
412 | break; | |
413 | } | |
414 | } | |
c09df8a7 | 415 | |
eac14f89 KB |
416 | /* print remaining text unless parsing an escape sequence */ |
417 | if (state == TEXT && end > start) { | |
418 | /* check for incomplete UTF-8 sequences and fix end */ | |
419 | if (buffer[end - 1] >= 0x80) { | |
420 | if (buffer[end -1] >= 0xc0) | |
421 | end--; | |
422 | else if (end - 1 > start && | |
423 | buffer[end - 2] >= 0xe0) | |
424 | end -= 2; | |
425 | else if (end - 2 > start && | |
426 | buffer[end - 3] >= 0xf0) | |
427 | end -= 3; | |
c09df8a7 PH |
428 | } |
429 | ||
eac14f89 KB |
430 | /* print remaining complete UTF-8 sequences */ |
431 | if (end > start) | |
432 | write_console(buffer + start, end - start); | |
c09df8a7 | 433 | |
eac14f89 KB |
434 | /* move remaining bytes to the front */ |
435 | if (end < bytes) | |
436 | memmove(buffer, buffer + end, bytes - end); | |
437 | end = bytes - end; | |
c09df8a7 | 438 | } else { |
eac14f89 KB |
439 | /* all data has been consumed, mark buffer empty */ |
440 | end = 0; | |
c09df8a7 PH |
441 | } |
442 | } | |
c09df8a7 | 443 | |
eac14f89 KB |
444 | /* check if the console font supports unicode */ |
445 | warn_if_raster_font(); | |
c09df8a7 | 446 | |
eac14f89 KB |
447 | CloseHandle(hread); |
448 | return 0; | |
c09df8a7 PH |
449 | } |
450 | ||
eac14f89 | 451 | static void winansi_exit(void) |
c09df8a7 | 452 | { |
eac14f89 KB |
453 | /* flush all streams */ |
454 | _flushall(); | |
455 | ||
456 | /* signal console thread to exit */ | |
457 | FlushFileBuffers(hwrite); | |
458 | DisconnectNamedPipe(hwrite); | |
459 | ||
460 | /* wait for console thread to copy remaining data */ | |
461 | WaitForSingleObject(hthread, INFINITE); | |
462 | ||
463 | /* cleanup handles... */ | |
eac14f89 KB |
464 | CloseHandle(hwrite); |
465 | CloseHandle(hthread); | |
466 | } | |
c09df8a7 | 467 | |
eac14f89 KB |
468 | static void die_lasterr(const char *fmt, ...) |
469 | { | |
470 | va_list params; | |
471 | va_start(params, fmt); | |
472 | errno = err_win_to_posix(GetLastError()); | |
473 | die_errno(fmt, params); | |
474 | va_end(params); | |
475 | } | |
c09df8a7 | 476 | |
eac14f89 KB |
477 | static HANDLE duplicate_handle(HANDLE hnd) |
478 | { | |
479 | HANDLE hresult, hproc = GetCurrentProcess(); | |
480 | if (!DuplicateHandle(hproc, hnd, hproc, &hresult, 0, TRUE, | |
481 | DUPLICATE_SAME_ACCESS)) | |
7c00bc39 JS |
482 | die_lasterr("DuplicateHandle(%li) failed", |
483 | (long) (intptr_t) hnd); | |
eac14f89 KB |
484 | return hresult; |
485 | } | |
c09df8a7 | 486 | |
fcd428f4 KB |
487 | static HANDLE swap_osfhnd(int fd, HANDLE new_handle) |
488 | { | |
a9b8a09c JH |
489 | /* |
490 | * Create a copy of the original handle associated with fd | |
491 | * because the original will get closed when we dup2(). | |
492 | */ | |
493 | HANDLE handle = (HANDLE)_get_osfhandle(fd); | |
494 | HANDLE duplicate = duplicate_handle(handle); | |
c09df8a7 | 495 | |
a9b8a09c JH |
496 | /* Create a temp fd associated with the already open "new_handle". */ |
497 | int new_fd = _open_osfhandle((intptr_t)new_handle, O_BINARY); | |
c09df8a7 | 498 | |
a9b8a09c | 499 | assert((fd == 1) || (fd == 2)); |
fcd428f4 | 500 | |
a9b8a09c JH |
501 | /* |
502 | * Use stock dup2() to re-bind fd to the new handle. Note that | |
503 | * this will implicitly close(1) and close both fd=1 and the | |
504 | * originally associated handle. It will open a new fd=1 and | |
505 | * call DuplicateHandle() on the handle associated with new_fd. | |
506 | * It is because of this implicit close() that we created the | |
507 | * copy of the original. | |
508 | * | |
1d3f065e JS |
509 | * Note that we need to update the cached console handle to the |
510 | * duplicated one because the dup2() call will implicitly close | |
511 | * the original one. | |
a9b8a09c JH |
512 | * |
513 | * Note that dup2() when given target := {0,1,2} will also | |
514 | * call SetStdHandle(), so we don't need to worry about that. | |
515 | */ | |
a9b8a09c JH |
516 | if (console == handle) |
517 | console = duplicate; | |
1d3f065e | 518 | dup2(new_fd, fd); |
fcd428f4 | 519 | |
a9b8a09c JH |
520 | /* Close the temp fd. This explicitly closes "new_handle" |
521 | * (because it has been associated with it). | |
522 | */ | |
523 | close(new_fd); | |
fcd428f4 | 524 | |
a4d92d57 JS |
525 | if (fd == 2) |
526 | setvbuf(stderr, NULL, _IONBF, BUFSIZ); | |
a9b8a09c | 527 | fd_is_interactive[fd] |= FD_SWAPPED; |
fcd428f4 | 528 | |
a9b8a09c | 529 | return duplicate; |
c09df8a7 PH |
530 | } |
531 | ||
f7f90e0f KB |
532 | #ifdef DETECT_MSYS_TTY |
533 | ||
534 | #include <winternl.h> | |
535 | #include <ntstatus.h> | |
536 | ||
537 | static void detect_msys_tty(int fd) | |
538 | { | |
539 | ULONG result; | |
540 | BYTE buffer[1024]; | |
541 | POBJECT_NAME_INFORMATION nameinfo = (POBJECT_NAME_INFORMATION) buffer; | |
542 | PWSTR name; | |
543 | ||
544 | /* check if fd is a pipe */ | |
545 | HANDLE h = (HANDLE) _get_osfhandle(fd); | |
546 | if (GetFileType(h) != FILE_TYPE_PIPE) | |
547 | return; | |
548 | ||
549 | /* get pipe name */ | |
550 | if (!NT_SUCCESS(NtQueryObject(h, ObjectNameInformation, | |
551 | buffer, sizeof(buffer) - 2, &result))) | |
552 | return; | |
553 | name = nameinfo->Name.Buffer; | |
c46458e8 | 554 | name[nameinfo->Name.Length / sizeof(*name)] = 0; |
f7f90e0f | 555 | |
86924838 AD |
556 | /* |
557 | * Check if this could be a MSYS2 pty pipe ('msys-XXXX-ptyN-XX') | |
558 | * or a cygwin pty pipe ('cygwin-XXXX-ptyN-XX') | |
559 | */ | |
560 | if ((!wcsstr(name, L"msys-") && !wcsstr(name, L"cygwin-")) || | |
561 | !wcsstr(name, L"-pty")) | |
f7f90e0f KB |
562 | return; |
563 | ||
a4d92d57 JS |
564 | if (fd == 2) |
565 | setvbuf(stderr, NULL, _IONBF, BUFSIZ); | |
a9b8a09c | 566 | fd_is_interactive[fd] |= FD_MSYS; |
f7f90e0f KB |
567 | } |
568 | ||
569 | #endif | |
570 | ||
a9b8a09c JH |
571 | /* |
572 | * Wrapper for isatty(). Most calls in the main git code | |
573 | * call isatty(1 or 2) to see if the instance is interactive | |
574 | * and should: be colored, show progress, paginate output. | |
575 | * We lie and give results for what the descriptor WAS at | |
576 | * startup (and ignore any pipe redirection we internally | |
577 | * do). | |
578 | */ | |
579 | #undef isatty | |
cbb3f3c9 JS |
580 | int winansi_isatty(int fd) |
581 | { | |
a9b8a09c JH |
582 | if (fd >= 0 && fd <= 2) |
583 | return fd_is_interactive[fd] != 0; | |
584 | return isatty(fd); | |
cbb3f3c9 JS |
585 | } |
586 | ||
eac14f89 | 587 | void winansi_init(void) |
c09df8a7 | 588 | { |
fcd428f4 | 589 | int con1, con2; |
eac14f89 | 590 | char name[32]; |
c09df8a7 | 591 | |
eac14f89 KB |
592 | /* check if either stdout or stderr is a console output screen buffer */ |
593 | con1 = is_console(1); | |
594 | con2 = is_console(2); | |
a9b8a09c JH |
595 | |
596 | /* Also compute console bit for fd 0 even though we don't need the result here. */ | |
597 | is_console(0); | |
598 | ||
f7f90e0f KB |
599 | if (!con1 && !con2) { |
600 | #ifdef DETECT_MSYS_TTY | |
601 | /* check if stdin / stdout / stderr are MSYS2 pty pipes */ | |
602 | detect_msys_tty(0); | |
603 | detect_msys_tty(1); | |
604 | detect_msys_tty(2); | |
605 | #endif | |
eac14f89 | 606 | return; |
f7f90e0f | 607 | } |
c09df8a7 | 608 | |
eac14f89 | 609 | /* create a named pipe to communicate with the console thread */ |
5096d490 | 610 | xsnprintf(name, sizeof(name), "\\\\.\\pipe\\winansi%lu", GetCurrentProcessId()); |
eac14f89 KB |
611 | hwrite = CreateNamedPipe(name, PIPE_ACCESS_OUTBOUND, |
612 | PIPE_TYPE_BYTE | PIPE_WAIT, 1, BUFFER_SIZE, 0, 0, NULL); | |
613 | if (hwrite == INVALID_HANDLE_VALUE) | |
614 | die_lasterr("CreateNamedPipe failed"); | |
615 | ||
616 | hread = CreateFile(name, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL); | |
617 | if (hread == INVALID_HANDLE_VALUE) | |
618 | die_lasterr("CreateFile for named pipe failed"); | |
619 | ||
620 | /* start console spool thread on the pipe's read end */ | |
621 | hthread = CreateThread(NULL, 0, console_thread, NULL, 0, NULL); | |
622 | if (hthread == INVALID_HANDLE_VALUE) | |
623 | die_lasterr("CreateThread(console_thread) failed"); | |
624 | ||
625 | /* schedule cleanup routine */ | |
626 | if (atexit(winansi_exit)) | |
627 | die_errno("atexit(winansi_exit) failed"); | |
628 | ||
eac14f89 KB |
629 | /* redirect stdout / stderr to the pipe */ |
630 | if (con1) | |
51822653 | 631 | hconsole1 = swap_osfhnd(1, duplicate_handle(hwrite)); |
eac14f89 | 632 | if (con2) |
51822653 | 633 | hconsole2 = swap_osfhnd(2, duplicate_handle(hwrite)); |
eac14f89 | 634 | } |
c09df8a7 | 635 | |
eac14f89 KB |
636 | /* |
637 | * Returns the real console handle if stdout / stderr is a pipe redirecting | |
638 | * to the console. Allows spawn / exec to pass the console to the next process. | |
639 | */ | |
640 | HANDLE winansi_get_osfhandle(int fd) | |
641 | { | |
a9b8a09c JH |
642 | if (fd == 1 && (fd_is_interactive[1] & FD_SWAPPED)) |
643 | return hconsole1; | |
644 | if (fd == 2 && (fd_is_interactive[2] & FD_SWAPPED)) | |
645 | return hconsole2; | |
646 | ||
647 | return (HANDLE)_get_osfhandle(fd); | |
c09df8a7 | 648 | } |