scan-tree.c

   1 #include "cgit.h"
   2 #include "configfile.h"
   3 #include "html.h"
   4
   5 #define MAX_PATH 4096
   6
   7 /* return 1 if path contains a objects/ directory and a HEAD file */
   8 static int is_git_dir(const char *path)
   9 {
  10         struct stat st;
  11         static char buf[MAX_PATH];
  12
  13         if (snprintf(buf, MAX_PATH, "%s/objects", path) >= MAX_PATH) {
  14                 fprintf(stderr, "Insanely long path: %s\n", path);
  15                 return 0;
  16         }
  17         if (stat(buf, &st)) {
  18                 if (errno != ENOENT)
  19                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
  20                                 path, strerror(errno), errno);
  21                 return 0;
  22         }
  23         if (!S_ISDIR(st.st_mode))
  24                 return 0;
  25
  26         sprintf(buf, "%s/HEAD", path);
  27         if (stat(buf, &st)) {
  28                 if (errno != ENOENT)
  29                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
  30                                 path, strerror(errno), errno);
  31                 return 0;
  32         }
  33         if (!S_ISREG(st.st_mode))
  34                 return 0;
  35
  36         return 1;
  37 }
  38
  39 struct cgit_repo *repo;
  40 repo_config_fn config_fn;
  41
  42 static void repo_config(const char *name, const char *value)
  43 {
  44         config_fn(repo, name, value);
  45 }
  46
  47 static void add_repo(const char *base, const char *path, repo_config_fn fn)
  48 {
  49         struct stat st;
  50         struct passwd *pwd;
  51         char *p;
  52         size_t size;
  53
  54         if (stat(path, &st)) {
  55                 fprintf(stderr, "Error accessing %s: %s (%d)\n",
  56                         path, strerror(errno), errno);
  57                 return;
  58         }
  59         if ((pwd = getpwuid(st.st_uid)) == NULL) {
  60                 fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
  61                         path, strerror(errno), errno);
  62                 return;
  63         }
  64         if (base == path)
  65                 p = fmt("%s", path);
  66         else
  67                 p = fmt("%s", path + strlen(base) + 1);
  68
  69         if (!strcmp(p + strlen(p) - 5, "/.git"))
  70                 p[strlen(p) - 5] = '\0';
  71
  72         repo = cgit_add_repo(xstrdup(p));
  73         repo->name = repo->url;
  74         repo->path = xstrdup(path);
  75         p = (pwd && pwd->pw_gecos) ? strchr(pwd->pw_gecos, ',') : NULL;
  76         if (p)
  77                 *p = '\0';
  78         repo->owner = (pwd ? xstrdup(pwd->pw_gecos ? pwd->pw_gecos : pwd->pw_name) : "");
  79
  80         p = fmt("%s/description", path);
  81         if (!stat(p, &st))
  82                 readfile(p, &repo->desc, &size);
  83
  84         p = fmt("%s/README.html", path);
  85         if (!stat(p, &st))
  86                 repo->readme = "README.html";
  87
  88         p = fmt("%s/cgitrc", path);
  89         if (!stat(p, &st)) {
  90                 config_fn = fn;
  91                 parse_configfile(xstrdup(p), &repo_config);
  92         }
  93 }
  94
  95 static void scan_path(const char *base, const char *path, repo_config_fn fn)
  96 {
  97         DIR *dir;
  98         struct dirent *ent;
  99         char *buf;
 100         struct stat st;
 101
 102         if (is_git_dir(path)) {
 103                 add_repo(base, path, fn);
 104                 return;
 105         }
 106         if (is_git_dir(fmt("%s/.git", path))) {
 107                 add_repo(base, fmt("%s/.git", path), fn);
 108                 return;
 109         }
 110         dir = opendir(path);
 111         if (!dir) {
 112                 fprintf(stderr, "Error opening directory %s: %s (%d)\n",
 113                         path, strerror(errno), errno);
 114                 return;
 115         }
 116         while((ent = readdir(dir)) != NULL) {
 117                 if (ent->d_name[0] == '.') {
 118                         if (ent->d_name[1] == '\0')
 119                                 continue;
 120                         if (ent->d_name[1] == '.' && ent->d_name[2] == '\0')
 121                                 continue;
 122                 }
 123                 buf = malloc(strlen(path) + strlen(ent->d_name) + 2);
 124                 if (!buf) {
 125                         fprintf(stderr, "Alloc error on %s: %s (%d)\n",
 126                                 path, strerror(errno), errno);
 127                         exit(1);
 128                 }
 129                 sprintf(buf, "%s/%s", path, ent->d_name);
 130                 if (stat(buf, &st)) {
 131                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
 132                                 buf, strerror(errno), errno);
 133                         free(buf);
 134                         continue;
 135                 }
 136                 if (S_ISDIR(st.st_mode))
 137                         scan_path(base, buf, fn);
 138                 free(buf);
 139         }
 140         closedir(dir);
 141 }
 142
 143 void scan_tree(const char *path, repo_config_fn fn)
 144 {
 145         scan_path(path, path, fn);
 146 }