017194e6a890abab8d54457b649cc90d33c4820c
[ccan] / tools / ccanlint / compulsory_tests / check_includes_build.c
1 #include <tools/ccanlint/ccanlint.h>
2 #include <tools/tools.h>
3 #include <ccan/talloc/talloc.h>
4 #include <ccan/grab_file/grab_file.h>
5 #include <ccan/str/str.h>
6 #include <sys/types.h>
7 #include <sys/stat.h>
8 #include <fcntl.h>
9 #include <unistd.h>
10 #include <limits.h>
11 #include <errno.h>
12 #include <stdlib.h>
13 #include <stdio.h>
14 #include <err.h>
15 #include <string.h>
16 #include <ctype.h>
17
18 static const char *can_build(struct manifest *m)
19 {
20         if (safe_mode)
21                 return "Safe mode enabled";
22         return NULL;
23 }
24
25 static struct ccan_file *main_header(struct manifest *m)
26 {
27         struct ccan_file *f;
28
29         list_for_each(&m->h_files, f, list) {
30                 if (strstarts(f->name, m->basename)
31                     && strlen(f->name) == strlen(m->basename) + 2)
32                         return f;
33         }
34         /* Should not happen: we depend on has_main_header */
35         abort();
36 }
37
38 static void check_includes_build(struct manifest *m,
39                                  bool keep,
40                                  unsigned int *timeleft, struct score *score)
41 {
42         char *contents;
43         char *tmpsrc, *tmpobj, *cmdout;
44         int fd;
45         struct ccan_file *mainh = main_header(m);
46
47         tmpsrc = maybe_temp_file(m, "-included.c", keep, mainh->fullname);
48         tmpobj = maybe_temp_file(m, ".o", keep, tmpsrc);
49
50         fd = open(tmpsrc, O_WRONLY | O_CREAT | O_EXCL, 0600);
51         if (fd < 0)
52                 err(1, "Creating temporary file %s", tmpsrc);
53
54         contents = talloc_asprintf(tmpsrc, "#include <ccan/%s/%s.h>\n",
55                                    m->basename, m->basename);
56         if (write(fd, contents, strlen(contents)) != strlen(contents))
57                 err(1, "writing to temporary file %s", tmpsrc);
58         close(fd);
59
60         if (compile_object(score, tmpsrc, ccan_dir, "", tmpobj, &cmdout)) {
61                 score->pass = true;
62                 score->score = score->total;
63         } else {
64                 score->error = talloc_asprintf(score,
65                                        "#include of the main header file:\n%s",
66                                        cmdout);
67         }
68 }
69
70 struct ccanlint includes_build = {
71         .key = "main_header_compiles",
72         .name = "Modules main header compiles",
73         .check = check_includes_build,
74         .can_run = can_build,
75 };
76
77 REGISTER_TEST(includes_build, &depends_exist, &has_main_header, NULL);