497a22c19950ff371480d627732489e4e827a566
[ccan] / tools / ccanlint / compulsory_tests / check_depends_built.c
1 #include <tools/ccanlint/ccanlint.h>
2 #include <tools/tools.h>
3 #include <ccan/talloc/talloc.h>
4 #include <ccan/str/str.h>
5 #include <sys/types.h>
6 #include <sys/stat.h>
7 #include <fcntl.h>
8 #include <unistd.h>
9 #include <limits.h>
10 #include <errno.h>
11 #include <stdlib.h>
12 #include <stdio.h>
13 #include <err.h>
14 #include <string.h>
15 #include <ctype.h>
16
17 static const char *can_build(struct manifest *m)
18 {
19         if (safe_mode)
20                 return "Safe mode enabled";
21         return NULL;
22 }
23
24 /* FIXME: recursive ccanlint if they ask for it. */
25 static bool expect_obj_file(const char *dir)
26 {
27         struct manifest *dep_man;
28         bool has_c_files;
29
30         dep_man = get_manifest(dir, dir);
31
32         /* If it has C files, we expect an object file built from them. */
33         has_c_files = !list_empty(&dep_man->c_files);
34         talloc_free(dep_man);
35         return has_c_files;
36 }
37
38 static void *check_depends_built(struct manifest *m, unsigned int *timeleft)
39 {
40         struct ccan_file *i;
41         struct stat st;
42         char *report = NULL;
43
44         list_for_each(&m->dep_dirs, i, list) {
45                 if (!expect_obj_file(i->fullname))
46                         continue;
47
48                 i->compiled = talloc_asprintf(i, "%s.o", i->fullname);
49                 if (stat(i->compiled, &st) != 0) {
50                         report = talloc_asprintf_append(report,
51                                                         "object file %s\n",
52                                                         i->compiled);
53                         i->compiled = NULL;
54                 }                       
55         }
56
57         /* We may need libtap for testing, unless we're "tap" */
58         if (!streq(m->basename, "tap")
59             && (!list_empty(&m->run_tests) || !list_empty(&m->api_tests))) {
60                 char *tapobj = talloc_asprintf(m, "%s/ccan/tap.o", ccan_dir);
61                 if (stat(tapobj, &st) != 0) {
62                         report = talloc_asprintf_append(report,
63                                                         "object file %s"
64                                                         " (for tests)\n",
65                                                         tapobj);
66                 }
67         }
68
69         return talloc_steal(m, report);
70 }
71
72 static const char *describe_depends_built(struct manifest *m,
73                                           void *check_result)
74 {
75         return talloc_asprintf(check_result, 
76                                "The following dependencies are not built:\n"
77                                "%s", (char *)check_result);
78 }
79
80 struct ccanlint depends_built = {
81         .key = "depends-built",
82         .name = "Module's CCAN dependencies are already built",
83         .total_score = 1,
84         .check = check_depends_built,
85         .describe = describe_depends_built,
86         .can_run = can_build,
87 };
88
89 REGISTER_TEST(depends_built, &depends_exist, NULL);