gitweb.ps.run Git - ps-cgit/blob - scan-tree.c

   1 /* scan-tree.c
   2  *
   3  * Copyright (C) 2008-2009 Lars Hjemli
   4  * Copyright (C) 2010 Jason A. Donenfeld <Jason@zx2c4.com>
   5  *
   6  * Licensed under GNU General Public License v2
   7  *   (see COPYING for full license text)
   8  */
   9
  10 #include "cgit.h"
  11 #include "configfile.h"
  12 #include "html.h"
  13
  14 #define MAX_PATH 4096
  15
  16 /* return 1 if path contains a objects/ directory and a HEAD file */
  17 static int is_git_dir(const char *path)
  18 {
  19         struct stat st;
  20         static char buf[MAX_PATH];
  21
  22         if (snprintf(buf, MAX_PATH, "%s/objects", path) >= MAX_PATH) {
  23                 fprintf(stderr, "Insanely long path: %s\n", path);
  24                 return 0;
  25         }
  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_ISDIR(st.st_mode))
  33                 return 0;
  34
  35         sprintf(buf, "%s/HEAD", path);
  36         if (stat(buf, &st)) {
  37                 if (errno != ENOENT)
  38                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
  39                                 path, strerror(errno), errno);
  40                 return 0;
  41         }
  42         if (!S_ISREG(st.st_mode))
  43                 return 0;
  44
  45         return 1;
  46 }
  47
  48 struct cgit_repo *repo;
  49 repo_config_fn config_fn;
  50 char *owner;
  51 char *desc;
  52
  53 static void repo_config(const char *name, const char *value)
  54 {
  55         config_fn(repo, name, value);
  56 }
  57
  58 static int gitweb_config(const char *key, const char *value, void *cb)
  59 {
  60         if (ctx.cfg.enable_gitweb_owner && !strcmp(key, "gitweb.owner"))
  61                 owner = xstrdup(value);
  62         else if (ctx.cfg.enable_gitweb_desc && !strcmp(key, "gitweb.description"))
  63                 desc = xstrdup(value);
  64         return 0;
  65 }
  66
  67
  68
  69 static char *xstrrchr(char *s, char *from, int c)
  70 {
  71         while (from >= s && *from != c)
  72                 from--;
  73         return from < s ? NULL : from;
  74 }
  75
  76 static void add_repo(const char *base, const char *path, repo_config_fn fn)
  77 {
  78         struct stat st;
  79         struct passwd *pwd;
  80         char *rel, *p, *slash;
  81         int n;
  82         size_t size;
  83
  84         if (stat(path, &st)) {
  85                 fprintf(stderr, "Error accessing %s: %s (%d)\n",
  86                         path, strerror(errno), errno);
  87                 return;
  88         }
  89
  90         if (ctx.cfg.strict_export && stat(fmt("%s/%s", path, ctx.cfg.strict_export), &st))
  91                 return;
  92
  93         if (!stat(fmt("%s/noweb", path), &st))
  94                 return;
  95
  96         owner = NULL;
  97         desc = NULL;
  98         git_config_from_file(gitweb_config, fmt("%s/config", path), NULL);
  99
 100         if (base == path)
 101                 rel = xstrdup(fmt("%s", path));
 102         else
 103                 rel = xstrdup(fmt("%s", path + strlen(base) + 1));
 104
 105         if (!strcmp(rel + strlen(rel) - 5, "/.git"))
 106                 rel[strlen(rel) - 5] = '\0';
 107
 108         repo = cgit_add_repo(rel);
 109         if (ctx.cfg.remove_suffix)
 110                 if ((p = strrchr(repo->url, '.')) && !strcmp(p, ".git"))
 111                         *p = '\0';
 112         repo->name = repo->url;
 113         repo->path = xstrdup(path);
 114         while (!owner) {
 115                 if ((pwd = getpwuid(st.st_uid)) == NULL) {
 116                         fprintf(stderr, "Error reading owner-info for %s: %s (%d)\n",
 117                                 path, strerror(errno), errno);
 118                         break;
 119                 }
 120                 if (pwd->pw_gecos)
 121                         if ((p = strchr(pwd->pw_gecos, ',')))
 122                                 *p = '\0';
 123                 owner = xstrdup(pwd->pw_gecos ? pwd->pw_gecos : pwd->pw_name);
 124         }
 125         repo->owner = owner;
 126
 127         if (desc)
 128                 repo->desc = desc;
 129         else {
 130                 p = fmt("%s/description", path);
 131                 if (!stat(p, &st))
 132                         readfile(p, &repo->desc, &size);
 133         }
 134
 135         if (!repo->readme) {
 136                 p = fmt("%s/README.html", path);
 137                 if (!stat(p, &st))
 138                         repo->readme = "README.html";
 139         }
 140         if (ctx.cfg.section_from_path) {
 141                 n  = ctx.cfg.section_from_path;
 142                 if (n > 0) {
 143                         slash = rel;
 144                         while (slash && n && (slash = strchr(slash, '/')))
 145                                 n--;
 146                 } else {
 147                         slash = rel + strlen(rel);
 148                         while (slash && n && (slash = xstrrchr(rel, slash, '/')))
 149                                 n++;
 150                 }
 151                 if (slash && !n) {
 152                         *slash = '\0';
 153                         repo->section = xstrdup(rel);
 154                         *slash = '/';
 155                         if (!prefixcmp(repo->name, repo->section)) {
 156                                 repo->name += strlen(repo->section);
 157                                 if (*repo->name == '/')
 158                                         repo->name++;
 159                         }
 160                 }
 161         }
 162
 163         p = fmt("%s/cgitrc", path);
 164         if (!stat(p, &st)) {
 165                 config_fn = fn;
 166                 parse_configfile(xstrdup(p), &repo_config);
 167         }
 168
 169         free(rel);
 170 }
 171
 172 static void scan_path(const char *base, const char *path, repo_config_fn fn)
 173 {
 174         DIR *dir = opendir(path);
 175         struct dirent *ent;
 176         char *buf;
 177         struct stat st;
 178
 179         if (!dir) {
 180                 fprintf(stderr, "Error opening directory %s: %s (%d)\n",
 181                         path, strerror(errno), errno);
 182                 return;
 183         }
 184         if (is_git_dir(path)) {
 185                 add_repo(base, path, fn);
 186                 goto end;
 187         }
 188         if (is_git_dir(fmt("%s/.git", path))) {
 189                 add_repo(base, fmt("%s/.git", path), fn);
 190                 goto end;
 191         }
 192         while((ent = readdir(dir)) != NULL) {
 193                 if (ent->d_name[0] == '.') {
 194                         if (ent->d_name[1] == '\0')
 195                                 continue;
 196                         if (ent->d_name[1] == '.' && ent->d_name[2] == '\0')
 197                                 continue;
 198                         if (!ctx.cfg.scan_hidden_path)
 199                                 continue;
 200                 }
 201                 buf = malloc(strlen(path) + strlen(ent->d_name) + 2);
 202                 if (!buf) {
 203                         fprintf(stderr, "Alloc error on %s: %s (%d)\n",
 204                                 path, strerror(errno), errno);
 205                         exit(1);
 206                 }
 207                 sprintf(buf, "%s/%s", path, ent->d_name);
 208                 if (stat(buf, &st)) {
 209                         fprintf(stderr, "Error checking path %s: %s (%d)\n",
 210                                 buf, strerror(errno), errno);
 211                         free(buf);
 212                         continue;
 213                 }
 214                 if (S_ISDIR(st.st_mode))
 215                         scan_path(base, buf, fn);
 216                 free(buf);
 217         }
 218 end:
 219         closedir(dir);
 220 }
 221
 222 #define lastc(s) s[strlen(s) - 1]
 223
 224 void scan_projects(const char *path, const char *projectsfile, repo_config_fn fn)
 225 {
 226         char line[MAX_PATH * 2], *z;
 227         FILE *projects;
 228         int err;
 229
 230         projects = fopen(projectsfile, "r");
 231         if (!projects) {
 232                 fprintf(stderr, "Error opening projectsfile %s: %s (%d)\n",
 233                         projectsfile, strerror(errno), errno);
 234                 return;
 235         }
 236         while (fgets(line, sizeof(line), projects) != NULL) {
 237                 for (z = &lastc(line);
 238                      strlen(line) && strchr("\n\r", *z);
 239                      z = &lastc(line))
 240                         *z = '\0';
 241                 if (strlen(line))
 242                         scan_path(path, fmt("%s/%s", path, line), fn);
 243         }
 244         if ((err = ferror(projects))) {
 245                 fprintf(stderr, "Error reading from projectsfile %s: %s (%d)\n",
 246                         projectsfile, strerror(err), err);
 247         }
 248         fclose(projects);
 249 }
 250
 251 void scan_tree(const char *path, repo_config_fn fn)
 252 {
 253         scan_path(path, path, fn);
 254 }