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