scan-tree.c

   1 #include "cgit.h"
   2 #include "html.h"
   3
   4 #define MAX_PATH 4096
   5
   6 /* return 1 if path contains a objects/ directory and a HEAD file */
   7 static int is_git_dir(const char *path)
   8 {
   9         struct stat st;
  10         static char buf[MAX_PATH];
  11
  12         if (snprintf(buf, MAX_PATH, "%s/objects", path) >= MAX_PATH) {
  13                 fprintf(stderr, "Insanely long path: %s\n", path);
  14                 return 0;
  15         }
  16         if (stat(buf, &st)) {
  17                 if (errno != ENOENT)
  18                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
  19                                 path, strerror(errno), errno);
  20                 return 0;
  21         }
  22         if (!S_ISDIR(st.st_mode))
  23                 return 0;
  24
  25         sprintf(buf, "%s/HEAD", path);
  26         if (stat(buf, &st)) {
  27                 if (errno != ENOENT)
  28                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
  29                                 path, strerror(errno), errno);
  30                 return 0;
  31         }
  32         if (!S_ISREG(st.st_mode))
  33                 return 0;
  34
  35         return 1;
  36 }
  37
  38 static void add_repo(const char *base, const char *path)
  39 {
  40         struct cgit_repo *repo;
  41         struct stat st;
  42         struct passwd *pwd;
  43         char *p;
  44         size_t size;
  45
  46         if (stat(path, &st)) {
  47                 fprintf(stderr, "Error accessing %s: %s (%d)\n",
  48                         path, strerror(errno), errno);
  49                 return;
  50         }
  51         if ((pwd = getpwuid(st.st_uid)) == NULL) {
  52                 fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
  53                         path, strerror(errno), errno);
  54                 return;
  55         }
  56         if (base == path)
  57                 p = fmt("%s", path);
  58         else
  59                 p = fmt("%s", path + strlen(base) + 1);
  60
  61         if (!strcmp(p + strlen(p) - 5, "/.git"))
  62                 p[strlen(p) - 5] = '\0';
  63
  64         repo = cgit_add_repo(xstrdup(p));
  65         repo->name = repo->url;
  66         repo->path = xstrdup(path);
  67         p = (pwd && pwd->pw_gecos) ? strchr(pwd->pw_gecos, ',') : NULL;
  68         if (p)
  69                 *p = '\0';
  70         repo->owner = (pwd ? xstrdup(pwd->pw_gecos ? pwd->pw_gecos : pwd->pw_name) : "");
  71
  72         p = fmt("%s/description", path);
  73         if (!stat(p, &st))
  74                 readfile(p, &repo->desc, &size);
  75
  76         p = fmt("%s/README.html", path);
  77         if (!stat(p, &st))
  78                 repo->readme = "README.html";
  79 }
  80
  81 static void scan_path(const char *base, const char *path)
  82 {
  83         DIR *dir;
  84         struct dirent *ent;
  85         char *buf;
  86         struct stat st;
  87
  88         if (is_git_dir(path)) {
  89                 add_repo(base, path);
  90                 return;
  91         }
  92         if (is_git_dir(fmt("%s/.git", path))) {
  93                 add_repo(base, fmt("%s/.git", path));
  94                 return;
  95         }
  96         dir = opendir(path);
  97         if (!dir) {
  98                 fprintf(stderr, "Error opening directory %s: %s (%d)\n",
  99                         path, strerror(errno), errno);
 100                 return;
 101         }
 102         while((ent = readdir(dir)) != NULL) {
 103                 if (ent->d_name[0] == '.') {
 104                         if (ent->d_name[1] == '\0')
 105                                 continue;
 106                         if (ent->d_name[1] == '.' && ent->d_name[2] == '\0')
 107                                 continue;
 108                 }
 109                 buf = malloc(strlen(path) + strlen(ent->d_name) + 2);
 110                 if (!buf) {
 111                         fprintf(stderr, "Alloc error on %s: %s (%d)\n",
 112                                 path, strerror(errno), errno);
 113                         exit(1);
 114                 }
 115                 sprintf(buf, "%s/%s", path, ent->d_name);
 116                 if (stat(buf, &st)) {
 117                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
 118                                 buf, strerror(errno), errno);
 119                         free(buf);
 120                         continue;
 121                 }
 122                 if (S_ISDIR(st.st_mode))
 123                         scan_path(base, buf);
 124                 free(buf);
 125         }
 126         closedir(dir);
 127 }
 128
 129 void scan_tree(const char *path)
 130 {
 131         scan_path(path, path);
 132 }