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