git.ozlabs.org Git - ccan/blob - file_analysis.c

   1 #include "ccanlint.h"
   2 #include "get_file_lines.h"
   3 #include <talloc/talloc.h>
   4 #include <string/string.h>
   5 #include <noerr/noerr.h>
   6 #include <unistd.h>
   7 #include <sys/types.h>
   8 #include <sys/stat.h>
   9 #include <fcntl.h>
  10 #include <err.h>
  11 #include <errno.h>
  12 #include <dirent.h>
  13
  14 char **get_ccan_file_lines(struct ccan_file *f)
  15 {
  16         if (!f->lines)
  17                 f->lines = get_file_lines(f, f->name, &f->num_lines);
  18         return f->lines;
  19 }
  20
  21 static void add_files(struct manifest *m, const char *dir)
  22 {
  23         DIR *d;
  24         struct dirent *ent;
  25
  26         if (dir[0])
  27                 d = opendir(dir);
  28         else
  29                 d = opendir(".");
  30         if (!d)
  31                 err(1, "Opening directory %s", dir[0] ? dir : ".");
  32
  33         while ((ent = readdir(d)) != NULL) {
  34                 struct stat st;
  35                 struct ccan_file *f;
  36                 struct list_head *dest;
  37                 bool is_c_src;
  38
  39                 if (ent->d_name[0] == '.')
  40                         continue;
  41
  42                 f = talloc(m, struct ccan_file);
  43                 f->lines = NULL;
  44                 f->name = talloc_asprintf(f, "%s%s", dir, ent->d_name);
  45                 if (lstat(f->name, &st) != 0)
  46                         err(1, "lstat %s", f->name);
  47
  48                 if (S_ISDIR(st.st_mode)) {
  49                         f->name = talloc_append_string(f->name, "/");
  50                         add_files(m, f->name);
  51                         continue;
  52                 }
  53                 if (!S_ISREG(st.st_mode)) {
  54                         talloc_free(f);
  55                         continue;
  56                 }
  57
  58                 if (streq(f->name, "_info.c")) {
  59                         m->info_file = f;
  60                         continue;
  61                 }
  62
  63                 is_c_src = strends(f->name, ".c");
  64                 if (!is_c_src && !strends(f->name, ".h"))
  65                         dest = &m->other_files;
  66                 else if (!strchr(f->name, '/')) {
  67                         if (is_c_src)
  68                                 dest = &m->c_files;
  69                         else
  70                                 dest = &m->h_files;
  71                 } else if (strstarts(f->name, "test/")) {
  72                         if (is_c_src) {
  73                                 if (strstarts(f->name, "test/run"))
  74                                         dest = &m->run_tests;
  75                                 else if (strstarts(f->name, "test/compile_ok"))
  76                                         dest = &m->compile_ok_tests;
  77                                 else if (strstarts(f->name, "test/compile_fail"))
  78                                         dest = &m->compile_fail_tests;
  79                                 else
  80                                         dest = &m->other_test_files;
  81                         } else
  82                                 dest = &m->other_test_files;
  83                 } else
  84                         dest = &m->other_files;
  85
  86                 list_add(dest, &f->list);
  87         }
  88         closedir(d);
  89 }
  90
  91 char *report_on_lines(struct list_head *files,
  92                       char *(*report)(const char *),
  93                       char *sofar)
  94 {
  95         struct ccan_file *f;
  96
  97         list_for_each(files, f, list) {
  98                 unsigned int i;
  99                 char **lines = get_ccan_file_lines(f);
 100
 101                 for (i = 0; i < f->num_lines; i++) {
 102                         char *r = report(lines[i]);
 103                         if (!r)
 104                                 continue;
 105
 106                         sofar = talloc_asprintf_append(sofar,
 107                                                        "%s:%u:%s\n",
 108                                                        f->name, i+1, r);
 109                         talloc_free(r);
 110                 }
 111         }
 112         return sofar;
 113 }
 114
 115 struct manifest *get_manifest(void)
 116 {
 117         struct manifest *m = talloc(NULL, struct manifest);
 118         unsigned int len;
 119
 120         m->info_file = NULL;
 121         list_head_init(&m->c_files);
 122         list_head_init(&m->h_files);
 123         list_head_init(&m->run_tests);
 124         list_head_init(&m->compile_ok_tests);
 125         list_head_init(&m->compile_fail_tests);
 126         list_head_init(&m->other_test_files);
 127         list_head_init(&m->other_files);
 128
 129         /* *This* is why people hate C. */
 130         len = 32;
 131         m->basename = talloc_array(m, char, len);
 132         while (!getcwd(m->basename, len)) {
 133                 if (errno != ERANGE)
 134                         err(1, "Getting current directory");
 135                 m->basename = talloc_realloc(m, m->basename, char, len *= 2);
 136         }
 137
 138         len = strlen(m->basename);
 139         while (len && m->basename[len-1] == '/')
 140                 m->basename[--len] = '\0';
 141
 142         m->basename = strrchr(m->basename, '/');
 143         if (!m->basename)
 144                 errx(1, "I don't expect to be run from the root directory");
 145         m->basename++;
 146
 147         add_files(m, "");
 148         return m;
 149 }