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