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