1 /*
2 * Copyright © 2021 Behdad Esfahbod
3 *
4 * This is part of HarfBuzz, a text shaping library.
5 *
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
11 *
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16 * DAMAGE.
17 *
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23 */
24
25 #ifndef BATCH_HH
26 #define BATCH_HH
27
28 #include "options.hh"
29
30 typedef int (*main_func_t) (int argc, char **argv);
31
32 template <typename main_t, bool report_status=false>
33 int
batch_main(int argc,char ** argv)34 batch_main (int argc, char **argv)
35 {
36 if (argc == 2 && !strcmp (argv[1], "--batch"))
37 {
38 int ret = 0;
39 char buf[4092];
40 while (fgets (buf, sizeof (buf), stdin))
41 {
42 size_t l = strlen (buf);
43 if (l && buf[l - 1] == '\n') buf[l - 1] = '\0';
44
45 char *args[64];
46 argc = 0;
47 args[argc++] = argv[0];
48 char *p = buf, *e;
49 args[argc++] = p;
50 while ((e = strchr (p, ';')) && argc < (int) ARRAY_LENGTH (args))
51 {
52 *e++ = '\0';
53 while (*e == ';')
54 e++;
55 args[argc++] = p = e;
56 }
57
58 int result = main_t () (argc, args);
59
60 if (report_status)
61 fprintf (stdout, result == 0 ? "success\n" : "failure\n");
62 fflush (stdout);
63
64 ret = MAX (ret, result);
65 }
66 return ret;
67 }
68
69 int ret = main_t () (argc, argv);
70 if (report_status && ret != 0)
71 fprintf (stdout, "error: Operation failed. Probably a bug. File github issue.\n");
72 return ret;
73 }
74
75 #endif
76