ui-log.c

   1 /* ui-log.c: functions for log output
   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 #include "html.h"
  11 #include "ui-shared.h"
  12 #include "vector.h"
  13
  14 int files, add_lines, rem_lines;
  15
  16 /*
  17  * The list of available column colors in the commit graph.
  18  */
  19 static const char *column_colors_html[] = {
  20         "<span class='column1'>",
  21         "<span class='column2'>",
  22         "<span class='column3'>",
  23         "<span class='column4'>",
  24         "<span class='column5'>",
  25         "<span class='column6'>",
  26         "</span>",
  27 };
  28
  29 #define COLUMN_COLORS_HTML_MAX (ARRAY_SIZE(column_colors_html) - 1)
  30
  31 void count_lines(char *line, int size)
  32 {
  33         if (size <= 0)
  34                 return;
  35
  36         if (line[0] == '+')
  37                 add_lines++;
  38
  39         else if (line[0] == '-')
  40                 rem_lines++;
  41 }
  42
  43 void inspect_files(struct diff_filepair *pair)
  44 {
  45         unsigned long old_size = 0;
  46         unsigned long new_size = 0;
  47         int binary = 0;
  48
  49         files++;
  50         if (ctx.repo->enable_log_linecount)
  51                 cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
  52                                 &new_size, &binary, 0, ctx.qry.ignorews,
  53                                 count_lines);
  54 }
  55
  56 void show_commit_decorations(struct commit *commit)
  57 {
  58         struct name_decoration *deco;
  59         static char buf[1024];
  60
  61         buf[sizeof(buf) - 1] = 0;
  62         deco = lookup_decoration(&name_decoration, &commit->object);
  63         while (deco) {
  64                 if (!prefixcmp(deco->name, "refs/heads/")) {
  65                         strncpy(buf, deco->name + 11, sizeof(buf) - 1);
  66                         cgit_log_link(buf, NULL, "branch-deco", buf, NULL,
  67                                       ctx.qry.vpath, 0, NULL, NULL,
  68                                       ctx.qry.showmsg);
  69                 }
  70                 else if (!prefixcmp(deco->name, "tag: refs/tags/")) {
  71                         strncpy(buf, deco->name + 15, sizeof(buf) - 1);
  72                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
  73                 }
  74                 else if (!prefixcmp(deco->name, "refs/tags/")) {
  75                         strncpy(buf, deco->name + 10, sizeof(buf) - 1);
  76                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
  77                 }
  78                 else if (!prefixcmp(deco->name, "refs/remotes/")) {
  79                         strncpy(buf, deco->name + 13, sizeof(buf) - 1);
  80                         cgit_log_link(buf, NULL, "remote-deco", NULL,
  81                                       sha1_to_hex(commit->object.sha1),
  82                                       ctx.qry.vpath, 0, NULL, NULL,
  83                                       ctx.qry.showmsg);
  84                 }
  85                 else {
  86                         strncpy(buf, deco->name, sizeof(buf) - 1);
  87                         cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
  88                                          sha1_to_hex(commit->object.sha1),
  89                                          ctx.qry.vpath, 0);
  90                 }
  91                 deco = deco->next;
  92         }
  93 }
  94
  95 void print_commit(struct commit *commit, struct rev_info *revs)
  96 {
  97         struct commitinfo *info;
  98         char *tmp;
  99         int cols = revs->graph ? 3 : 2;
 100         struct strbuf graphbuf = STRBUF_INIT;
 101         struct strbuf msgbuf = STRBUF_INIT;
 102
 103         if (ctx.repo->enable_log_filecount)
 104                 cols++;
 105         if (ctx.repo->enable_log_linecount)
 106                 cols++;
 107
 108         if (revs->graph) {
 109                 /* Advance graph until current commit */
 110                 while (!graph_next_line(revs->graph, &graphbuf)) {
 111                         /* Print graph segment in otherwise empty table row */
 112                         html("<tr class='nohover'><td class='commitgraph'>");
 113                         html(graphbuf.buf);
 114                         htmlf("</td><td colspan='%d' /></tr>\n", cols);
 115                         strbuf_setlen(&graphbuf, 0);
 116                 }
 117                 /* Current commit's graph segment is now ready in graphbuf */
 118         }
 119
 120         info = cgit_parse_commit(commit);
 121         htmlf("<tr%s>", ctx.qry.showmsg ? " class='logheader'" : "");
 122
 123         if (revs->graph) {
 124                 /* Print graph segment for current commit */
 125                 html("<td class='commitgraph'>");
 126                 html(graphbuf.buf);
 127                 html("</td>");
 128                 strbuf_setlen(&graphbuf, 0);
 129         }
 130         else {
 131                 html("<td>");
 132                 tmp = fmt("id=%s", sha1_to_hex(commit->object.sha1));
 133                 tmp = cgit_fileurl(ctx.repo->url, "commit", ctx.qry.vpath, tmp);
 134                 html_link_open(tmp, NULL, NULL);
 135                 cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
 136                 html_link_close();
 137                 html("</td>");
 138         }
 139
 140         htmlf("<td%s>", ctx.qry.showmsg ? " class='logsubject'" : "");
 141         if (ctx.qry.showmsg) {
 142                 /* line-wrap long commit subjects instead of truncating them */
 143                 size_t subject_len = strlen(info->subject);
 144
 145                 if (subject_len > ctx.cfg.max_msg_len &&
 146                     ctx.cfg.max_msg_len >= 15) {
 147                         /* symbol for signaling line-wrap (in PAGE_ENCODING) */
 148                         const char wrap_symbol[] = { ' ', 0xE2, 0x86, 0xB5, 0 };
 149                         int i = ctx.cfg.max_msg_len - strlen(wrap_symbol);
 150
 151                         /* Rewind i to preceding space character */
 152                         while (i > 0 && !isspace(info->subject[i]))
 153                                 --i;
 154                         if (!i) /* Oops, zero spaces. Reset i */
 155                                 i = ctx.cfg.max_msg_len - strlen(wrap_symbol);
 156
 157                         /* add remainder starting at i to msgbuf */
 158                         strbuf_add(&msgbuf, info->subject + i, subject_len - i);
 159                         strbuf_trim(&msgbuf);
 160                         strbuf_add(&msgbuf, "\n\n", 2);
 161
 162                         /* Place wrap_symbol at position i in info->subject */
 163                         strcpy(info->subject + i, wrap_symbol);
 164                 }
 165         }
 166         cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
 167                          sha1_to_hex(commit->object.sha1), ctx.qry.vpath, 0);
 168         show_commit_decorations(commit);
 169         html("</td><td>");
 170         html_txt(info->author);
 171
 172         if (revs->graph) {
 173                 html("</td><td>");
 174                 tmp = fmt("id=%s", sha1_to_hex(commit->object.sha1));
 175                 tmp = cgit_fileurl(ctx.repo->url, "commit", ctx.qry.vpath, tmp);
 176                 html_link_open(tmp, NULL, NULL);
 177                 cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
 178                 html_link_close();
 179         }
 180
 181         if (ctx.repo->enable_log_filecount || ctx.repo->enable_log_linecount) {
 182                 files = 0;
 183                 add_lines = 0;
 184                 rem_lines = 0;
 185                 cgit_diff_commit(commit, inspect_files, ctx.qry.vpath);
 186         }
 187
 188         if (ctx.repo->enable_log_filecount)
 189                 htmlf("</td><td>%d", files);
 190         if (ctx.repo->enable_log_linecount)
 191                 htmlf("</td><td>-%d/+%d", rem_lines, add_lines);
 192
 193         html("</td></tr>\n");
 194
 195         if (revs->graph || ctx.qry.showmsg) { /* Print a second table row */
 196                 html("<tr class='nohover'>");
 197
 198                 if (ctx.qry.showmsg) {
 199                         /* Concatenate commit message + notes in msgbuf */
 200                         if (info->msg && *(info->msg)) {
 201                                 strbuf_addstr(&msgbuf, info->msg);
 202                                 strbuf_addch(&msgbuf, '\n');
 203                         }
 204                         format_note(NULL, commit->object.sha1, &msgbuf,
 205                                     PAGE_ENCODING,
 206                                     NOTES_SHOW_HEADER | NOTES_INDENT);
 207                         strbuf_addch(&msgbuf, '\n');
 208                         strbuf_ltrim(&msgbuf);
 209                 }
 210
 211                 if (revs->graph) {
 212                         int lines = 0;
 213
 214                         /* Calculate graph padding */
 215                         if (ctx.qry.showmsg) {
 216                                 /* Count #lines in commit message + notes */
 217                                 const char *p = msgbuf.buf;
 218                                 lines = 1;
 219                                 while ((p = strchr(p, '\n'))) {
 220                                         p++;
 221                                         lines++;
 222                                 }
 223                         }
 224
 225                         /* Print graph padding */
 226                         html("<td class='commitgraph'>");
 227                         while (lines > 0 || !graph_is_commit_finished(revs->graph)) {
 228                                 if (graphbuf.len)
 229                                         html("\n");
 230                                 strbuf_setlen(&graphbuf, 0);
 231                                 graph_next_line(revs->graph, &graphbuf);
 232                                 html(graphbuf.buf);
 233                                 lines--;
 234                         }
 235                         html("</td>\n");
 236                 }
 237                 else
 238                         html("<td/>"); /* Empty 'Age' column */
 239
 240                 /* Print msgbuf into remainder of table row */
 241                 htmlf("<td colspan='%d'%s>\n", cols,
 242                         ctx.qry.showmsg ? " class='logmsg'" : "");
 243                 html_txt(msgbuf.buf);
 244                 html("</td></tr>\n");
 245         }
 246
 247         strbuf_release(&msgbuf);
 248         strbuf_release(&graphbuf);
 249         cgit_free_commitinfo(info);
 250 }
 251
 252 static const char *disambiguate_ref(const char *ref)
 253 {
 254         unsigned char sha1[20];
 255         const char *longref;
 256
 257         longref = fmt("refs/heads/%s", ref);
 258         if (get_sha1(longref, sha1) == 0)
 259                 return longref;
 260
 261         return ref;
 262 }
 263
 264 static char *next_token(char **src)
 265 {
 266         char *result;
 267
 268         if (!src || !*src)
 269                 return NULL;
 270         while (isspace(**src))
 271                 (*src)++;
 272         if (!**src)
 273                 return NULL;
 274         result = *src;
 275         while (**src) {
 276                 if (isspace(**src)) {
 277                         **src = '\0';
 278                         (*src)++;
 279                         break;
 280                 }
 281                 (*src)++;
 282         }
 283         return result;
 284 }
 285
 286 void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern,
 287                     char *path, int pager, int commit_graph)
 288 {
 289         struct rev_info rev;
 290         struct commit *commit;
 291         struct vector vec = VECTOR_INIT(char *);
 292         int i, columns = 3;
 293         char *arg;
 294
 295         /* First argv is NULL */
 296         vector_push(&vec, NULL, 0);
 297
 298         if (!tip)
 299                 tip = ctx.qry.head;
 300         tip = disambiguate_ref(tip);
 301         vector_push(&vec, &tip, 0);
 302
 303         if (grep && pattern && *pattern) {
 304                 pattern = xstrdup(pattern);
 305                 if (!strcmp(grep, "grep") || !strcmp(grep, "author") ||
 306                     !strcmp(grep, "committer")) {
 307                         arg = fmt("--%s=%s", grep, pattern);
 308                         vector_push(&vec, &arg, 0);
 309                 }
 310                 if (!strcmp(grep, "range")) {
 311                         /* Split the pattern at whitespace and add each token
 312                          * as a revision expression. Do not accept other
 313                          * rev-list options. Also, replace the previously
 314                          * pushed tip (it's no longer relevant).
 315                          */
 316                         vec.count--;
 317                         while ((arg = next_token(&pattern))) {
 318                                 if (*arg == '-') {
 319                                         fprintf(stderr, "Bad range expr: %s\n",
 320                                                 arg);
 321                                         break;
 322                                 }
 323                                 vector_push(&vec, &arg, 0);
 324                         }
 325                 }
 326         }
 327         if (commit_graph) {
 328                 static const char *graph_arg = "--graph";
 329                 static const char *color_arg = "--color";
 330                 vector_push(&vec, &graph_arg, 0);
 331                 vector_push(&vec, &color_arg, 0);
 332                 graph_set_column_colors(column_colors_html,
 333                                         COLUMN_COLORS_HTML_MAX);
 334         }
 335
 336         if (path) {
 337                 arg = "--";
 338                 vector_push(&vec, &arg, 0);
 339                 vector_push(&vec, &path, 0);
 340         }
 341
 342         /* Make sure the vector is NULL-terminated */
 343         vector_push(&vec, NULL, 0);
 344         vec.count--;
 345
 346         init_revisions(&rev, NULL);
 347         rev.abbrev = DEFAULT_ABBREV;
 348         rev.commit_format = CMIT_FMT_DEFAULT;
 349         rev.verbose_header = 1;
 350         rev.show_root_diff = 0;
 351         setup_revisions(vec.count, vec.data, &rev, NULL);
 352         load_ref_decorations(DECORATE_FULL_REFS);
 353         rev.show_decorations = 1;
 354         rev.grep_filter.regflags |= REG_ICASE;
 355         compile_grep_patterns(&rev.grep_filter);
 356         prepare_revision_walk(&rev);
 357
 358         if (pager)
 359                 html("<table class='list nowrap'>");
 360
 361         html("<tr class='nohover'>");
 362         if (commit_graph)
 363                 html("<th></th>");
 364         else
 365                 html("<th class='left'>Age</th>");
 366         html("<th class='left'>Commit message");
 367         if (pager) {
 368                 html(" (");
 369                 cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
 370                               NULL, ctx.qry.head, ctx.qry.sha1,
 371                               ctx.qry.vpath, ctx.qry.ofs, ctx.qry.grep,
 372                               ctx.qry.search, ctx.qry.showmsg ? 0 : 1);
 373                 html(")");
 374         }
 375         html("</th><th class='left'>Author</th>");
 376         if (commit_graph)
 377                 html("<th class='left'>Age</th>");
 378         if (ctx.repo->enable_log_filecount) {
 379                 html("<th class='left'>Files</th>");
 380                 columns++;
 381         }
 382         if (ctx.repo->enable_log_linecount) {
 383                 html("<th class='left'>Lines</th>");
 384                 columns++;
 385         }
 386         html("</tr>\n");
 387
 388         if (ofs<0)
 389                 ofs = 0;
 390
 391         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
 392                 free(commit->buffer);
 393                 commit->buffer = NULL;
 394                 free_commit_list(commit->parents);
 395                 commit->parents = NULL;
 396         }
 397
 398         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
 399                 print_commit(commit, &rev);
 400                 free(commit->buffer);
 401                 commit->buffer = NULL;
 402                 free_commit_list(commit->parents);
 403                 commit->parents = NULL;
 404         }
 405         if (pager) {
 406                 html("</table><div class='pager'>");
 407                 if (ofs > 0) {
 408                         cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
 409                                       ctx.qry.sha1, ctx.qry.vpath,
 410                                       ofs - cnt, ctx.qry.grep,
 411                                       ctx.qry.search, ctx.qry.showmsg);
 412                         html("&nbsp;");
 413                 }
 414                 if ((commit = get_revision(&rev)) != NULL) {
 415                         cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
 416                                       ctx.qry.sha1, ctx.qry.vpath,
 417                                       ofs + cnt, ctx.qry.grep,
 418                                       ctx.qry.search, ctx.qry.showmsg);
 419                 }
 420                 html("</div>");
 421         } else if ((commit = get_revision(&rev)) != NULL) {
 422                 html("<tr class='nohover'><td colspan='3'>");
 423                 cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL,
 424                               ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg);
 425                 html("</td></tr>\n");
 426         }
 427 }