gitweb.ps.run Git - ps-cgit/blob - shared.c

   1 /* shared.c: global vars + some callback functions
   2  *
   3  * Copyright (C) 2006 Lars Hjemli
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #include "cgit.h"
  10
  11 struct repolist cgit_repolist;
  12 struct repoinfo *cgit_repo;
  13 int cgit_cmd;
  14
  15 const char *cgit_version = CGIT_VERSION;
  16
  17 char *cgit_root_title   = "Git repository browser";
  18 char *cgit_css          = "/cgit.css";
  19 char *cgit_logo         = "/git-logo.png";
  20 char *cgit_index_header = NULL;
  21 char *cgit_logo_link    = "http://www.kernel.org/pub/software/scm/git/docs/";
  22 char *cgit_module_link  = "./?repo=%s&page=commit&id=%s";
  23 char *cgit_agefile      = "info/web/last-modified";
  24 char *cgit_virtual_root = NULL;
  25 char *cgit_script_name  = CGIT_SCRIPT_NAME;
  26 char *cgit_cache_root   = "/var/cache/cgit";
  27 char *cgit_repo_group   = NULL;
  28
  29 int cgit_nocache               =  0;
  30 int cgit_snapshots             =  0;
  31 int cgit_enable_log_filecount  =  0;
  32 int cgit_enable_log_linecount  =  0;
  33 int cgit_max_lock_attempts     =  5;
  34 int cgit_cache_root_ttl        =  5;
  35 int cgit_cache_repo_ttl        =  5;
  36 int cgit_cache_dynamic_ttl     =  5;
  37 int cgit_cache_static_ttl      = -1;
  38 int cgit_cache_max_create_time =  5;
  39 int cgit_summary_log           =  0;
  40
  41 int cgit_max_msg_len = 60;
  42 int cgit_max_repodesc_len = 60;
  43 int cgit_max_commit_count = 50;
  44
  45 int cgit_query_has_symref = 0;
  46 int cgit_query_has_sha1   = 0;
  47
  48 char *cgit_querystring  = NULL;
  49 char *cgit_query_repo   = NULL;
  50 char *cgit_query_page   = NULL;
  51 char *cgit_query_head   = NULL;
  52 char *cgit_query_search = NULL;
  53 char *cgit_query_sha1   = NULL;
  54 char *cgit_query_sha2   = NULL;
  55 char *cgit_query_path   = NULL;
  56 char *cgit_query_name   = NULL;
  57 int   cgit_query_ofs    = 0;
  58
  59 int htmlfd = 0;
  60
  61
  62 int cgit_get_cmd_index(const char *cmd)
  63 {
  64         static char *cmds[] = {"log", "commit", "diff", "tree", "blob",
  65                                "snapshot", NULL};
  66         int i;
  67
  68         for(i = 0; cmds[i]; i++)
  69                 if (!strcmp(cmd, cmds[i]))
  70                         return i + 1;
  71         return 0;
  72 }
  73
  74 int chk_zero(int result, char *msg)
  75 {
  76         if (result != 0)
  77                 die("%s: %s", msg, strerror(errno));
  78         return result;
  79 }
  80
  81 int chk_positive(int result, char *msg)
  82 {
  83         if (result <= 0)
  84                 die("%s: %s", msg, strerror(errno));
  85         return result;
  86 }
  87
  88 struct repoinfo *add_repo(const char *url)
  89 {
  90         struct repoinfo *ret;
  91
  92         if (++cgit_repolist.count > cgit_repolist.length) {
  93                 if (cgit_repolist.length == 0)
  94                         cgit_repolist.length = 8;
  95                 else
  96                         cgit_repolist.length *= 2;
  97                 cgit_repolist.repos = xrealloc(cgit_repolist.repos,
  98                                                cgit_repolist.length *
  99                                                sizeof(struct repoinfo));
 100         }
 101
 102         ret = &cgit_repolist.repos[cgit_repolist.count-1];
 103         ret->url = xstrdup(url);
 104         ret->name = ret->url;
 105         ret->path = NULL;
 106         ret->desc = NULL;
 107         ret->owner = NULL;
 108         ret->group = cgit_repo_group;
 109         ret->defbranch = "master";
 110         ret->snapshots = cgit_snapshots;
 111         ret->enable_log_filecount = cgit_enable_log_filecount;
 112         ret->enable_log_linecount = cgit_enable_log_linecount;
 113         ret->module_link = cgit_module_link;
 114         ret->readme = NULL;
 115         return ret;
 116 }
 117
 118 struct repoinfo *cgit_get_repoinfo(const char *url)
 119 {
 120         int i;
 121         struct repoinfo *repo;
 122
 123         for (i=0; i<cgit_repolist.count; i++) {
 124                 repo = &cgit_repolist.repos[i];
 125                 if (!strcmp(repo->url, url))
 126                         return repo;
 127         }
 128         return NULL;
 129 }
 130
 131 void cgit_global_config_cb(const char *name, const char *value)
 132 {
 133         if (!strcmp(name, "root-title"))
 134                 cgit_root_title = xstrdup(value);
 135         else if (!strcmp(name, "css"))
 136                 cgit_css = xstrdup(value);
 137         else if (!strcmp(name, "logo"))
 138                 cgit_logo = xstrdup(value);
 139         else if (!strcmp(name, "index-header"))
 140                 cgit_index_header = xstrdup(value);
 141         else if (!strcmp(name, "logo-link"))
 142                 cgit_logo_link = xstrdup(value);
 143         else if (!strcmp(name, "module-link"))
 144                 cgit_module_link = xstrdup(value);
 145         else if (!strcmp(name, "virtual-root"))
 146                 cgit_virtual_root = xstrdup(value);
 147         else if (!strcmp(name, "nocache"))
 148                 cgit_nocache = atoi(value);
 149         else if (!strcmp(name, "snapshots"))
 150                 cgit_snapshots = atoi(value);
 151         else if (!strcmp(name, "enable-log-filecount"))
 152                 cgit_enable_log_filecount = atoi(value);
 153         else if (!strcmp(name, "enable-log-linecount"))
 154                 cgit_enable_log_linecount = atoi(value);
 155         else if (!strcmp(name, "cache-root"))
 156                 cgit_cache_root = xstrdup(value);
 157         else if (!strcmp(name, "cache-root-ttl"))
 158                 cgit_cache_root_ttl = atoi(value);
 159         else if (!strcmp(name, "cache-repo-ttl"))
 160                 cgit_cache_repo_ttl = atoi(value);
 161         else if (!strcmp(name, "cache-static-ttl"))
 162                 cgit_cache_static_ttl = atoi(value);
 163         else if (!strcmp(name, "cache-dynamic-ttl"))
 164                 cgit_cache_dynamic_ttl = atoi(value);
 165         else if (!strcmp(name, "max-message-length"))
 166                 cgit_max_msg_len = atoi(value);
 167         else if (!strcmp(name, "max-repodesc-length"))
 168                 cgit_max_repodesc_len = atoi(value);
 169         else if (!strcmp(name, "max-commit-count"))
 170                 cgit_max_commit_count = atoi(value);
 171         else if (!strcmp(name, "summary-log"))
 172                 cgit_summary_log = atoi(value);
 173         else if (!strcmp(name, "agefile"))
 174                 cgit_agefile = xstrdup(value);
 175         else if (!strcmp(name, "repo.group"))
 176                 cgit_repo_group = xstrdup(value);
 177         else if (!strcmp(name, "repo.url"))
 178                 cgit_repo = add_repo(value);
 179         else if (!strcmp(name, "repo.name"))
 180                 cgit_repo->name = xstrdup(value);
 181         else if (cgit_repo && !strcmp(name, "repo.path"))
 182                 cgit_repo->path = xstrdup(value);
 183         else if (cgit_repo && !strcmp(name, "repo.desc"))
 184                 cgit_repo->desc = xstrdup(value);
 185         else if (cgit_repo && !strcmp(name, "repo.owner"))
 186                 cgit_repo->owner = xstrdup(value);
 187         else if (cgit_repo && !strcmp(name, "repo.defbranch"))
 188                 cgit_repo->defbranch = xstrdup(value);
 189         else if (cgit_repo && !strcmp(name, "repo.snapshots"))
 190                 cgit_repo->snapshots = cgit_snapshots * atoi(value);
 191         else if (cgit_repo && !strcmp(name, "repo.enable-log-filecount"))
 192                 cgit_repo->enable_log_filecount = cgit_enable_log_filecount * atoi(value);
 193         else if (cgit_repo && !strcmp(name, "repo.enable-log-linecount"))
 194                 cgit_repo->enable_log_linecount = cgit_enable_log_linecount * atoi(value);
 195         else if (cgit_repo && !strcmp(name, "repo.module-link"))
 196                 cgit_repo->module_link= xstrdup(value);
 197         else if (cgit_repo && !strcmp(name, "repo.readme") && value != NULL) {
 198                 if (*value == '/')
 199                         cgit_repo->readme = xstrdup(value);
 200                 else
 201                         cgit_repo->readme = xstrdup(fmt("%s/%s", cgit_repo->path, value));
 202         } else if (!strcmp(name, "include"))
 203                 cgit_read_config(value, cgit_global_config_cb);
 204 }
 205
 206 void cgit_querystring_cb(const char *name, const char *value)
 207 {
 208         if (!strcmp(name,"r")) {
 209                 cgit_query_repo = xstrdup(value);
 210                 cgit_repo = cgit_get_repoinfo(value);
 211         } else if (!strcmp(name, "p")) {
 212                 cgit_query_page = xstrdup(value);
 213                 cgit_cmd = cgit_get_cmd_index(value);
 214         } else if (!strcmp(name, "url")) {
 215                 cgit_parse_url(value);
 216         } else if (!strcmp(name, "q")) {
 217                 cgit_query_search = xstrdup(value);
 218         } else if (!strcmp(name, "h")) {
 219                 cgit_query_head = xstrdup(value);
 220                 cgit_query_has_symref = 1;
 221         } else if (!strcmp(name, "id")) {
 222                 cgit_query_sha1 = xstrdup(value);
 223                 cgit_query_has_sha1 = 1;
 224         } else if (!strcmp(name, "id2")) {
 225                 cgit_query_sha2 = xstrdup(value);
 226                 cgit_query_has_sha1 = 1;
 227         } else if (!strcmp(name, "ofs")) {
 228                 cgit_query_ofs = atoi(value);
 229         } else if (!strcmp(name, "path")) {
 230                 cgit_query_path = xstrdup(value);
 231         } else if (!strcmp(name, "name")) {
 232                 cgit_query_name = xstrdup(value);
 233         }
 234 }
 235
 236 void *cgit_free_commitinfo(struct commitinfo *info)
 237 {
 238         free(info->author);
 239         free(info->author_email);
 240         free(info->committer);
 241         free(info->committer_email);
 242         free(info->subject);
 243         free(info);
 244         return NULL;
 245 }
 246
 247 int hextoint(char c)
 248 {
 249         if (c >= 'a' && c <= 'f')
 250                 return 10 + c - 'a';
 251         else if (c >= 'A' && c <= 'F')
 252                 return 10 + c - 'A';
 253         else if (c >= '0' && c <= '9')
 254                 return c - '0';
 255         else
 256                 return -1;
 257 }
 258
 259 void cgit_diff_tree_cb(struct diff_queue_struct *q,
 260                        struct diff_options *options, void *data)
 261 {
 262         int i;
 263
 264         for (i = 0; i < q->nr; i++) {
 265                 if (q->queue[i]->status == 'U')
 266                         continue;
 267                 ((filepair_fn)data)(q->queue[i]);
 268         }
 269 }
 270
 271 static int load_mmfile(mmfile_t *file, const unsigned char *sha1)
 272 {
 273         enum object_type type;
 274
 275         if (is_null_sha1(sha1)) {
 276                 file->ptr = (char *)"";
 277                 file->size = 0;
 278         } else {
 279                 file->ptr = read_sha1_file(sha1, &type, &file->size);
 280         }
 281         return 1;
 282 }
 283
 284 /*
 285  * Receive diff-buffers from xdiff and concatenate them as
 286  * needed across multiple callbacks.
 287  *
 288  * This is basically a copy of xdiff-interface.c/xdiff_outf(),
 289  * ripped from git and modified to use globals instead of
 290  * a special callback-struct.
 291  */
 292 char *diffbuf = NULL;
 293 int buflen = 0;
 294
 295 int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
 296 {
 297         int i;
 298
 299         for (i = 0; i < nbuf; i++) {
 300                 if (mb[i].ptr[mb[i].size-1] != '\n') {
 301                         /* Incomplete line */
 302                         diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
 303                         memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
 304                         buflen += mb[i].size;
 305                         continue;
 306                 }
 307
 308                 /* we have a complete line */
 309                 if (!diffbuf) {
 310                         ((linediff_fn)priv)(mb[i].ptr, mb[i].size);
 311                         continue;
 312                 }
 313                 diffbuf = xrealloc(diffbuf, buflen + mb[i].size);
 314                 memcpy(diffbuf + buflen, mb[i].ptr, mb[i].size);
 315                 ((linediff_fn)priv)(diffbuf, buflen + mb[i].size);
 316                 free(diffbuf);
 317                 diffbuf = NULL;
 318                 buflen = 0;
 319         }
 320         if (diffbuf) {
 321                 ((linediff_fn)priv)(diffbuf, buflen);
 322                 free(diffbuf);
 323                 diffbuf = NULL;
 324                 buflen = 0;
 325         }
 326         return 0;
 327 }
 328
 329 int cgit_diff_files(const unsigned char *old_sha1,
 330                      const unsigned char *new_sha1,
 331                      linediff_fn fn)
 332 {
 333         mmfile_t file1, file2;
 334         xpparam_t diff_params;
 335         xdemitconf_t emit_params;
 336         xdemitcb_t emit_cb;
 337
 338         if (!load_mmfile(&file1, old_sha1) || !load_mmfile(&file2, new_sha1))
 339                 return 1;
 340
 341         diff_params.flags = XDF_NEED_MINIMAL;
 342         emit_params.ctxlen = 3;
 343         emit_params.flags = XDL_EMIT_FUNCNAMES;
 344         emit_cb.outf = filediff_cb;
 345         emit_cb.priv = fn;
 346         xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
 347         return 0;
 348 }
 349
 350 void cgit_diff_tree(const unsigned char *old_sha1,
 351                     const unsigned char *new_sha1,
 352                     filepair_fn fn)
 353 {
 354         struct diff_options opt;
 355         int ret;
 356
 357         diff_setup(&opt);
 358         opt.output_format = DIFF_FORMAT_CALLBACK;
 359         opt.detect_rename = 1;
 360         opt.recursive = 1;
 361         opt.format_callback = cgit_diff_tree_cb;
 362         opt.format_callback_data = fn;
 363         diff_setup_done(&opt);
 364
 365         if (old_sha1 && !is_null_sha1(old_sha1))
 366                 ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt);
 367         else
 368                 ret = diff_root_tree_sha1(new_sha1, "", &opt);
 369         diffcore_std(&opt);
 370         diff_flush(&opt);
 371 }
 372
 373 void cgit_diff_commit(struct commit *commit, filepair_fn fn)
 374 {
 375         unsigned char *old_sha1 = NULL;
 376
 377         if (commit->parents)
 378                 old_sha1 = commit->parents->item->object.sha1;
 379         cgit_diff_tree(old_sha1, commit->object.sha1, fn);
 380 }