gitweb.ps.run Git - ps-cgit/blob - ui-log.c

   1 /* ui-log.c: functions for log output
   2  *
   3  * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
   4  *
   5  * Licensed under GNU General Public License v2
   6  *   (see COPYING for full license text)
   7  */
   8
   9 #define USE_THE_REPOSITORY_VARIABLE
  10
  11 #include "cgit.h"
  12 #include "ui-log.h"
  13 #include "html.h"
  14 #include "ui-shared.h"
  15 #include "strvec.h"
  16
  17 static int files, add_lines, rem_lines, lines_counted;
  18
  19 /*
  20  * The list of available column colors in the commit graph.
  21  */
  22 static const char *column_colors_html[] = {
  23         "<span class='column1'>",
  24         "<span class='column2'>",
  25         "<span class='column3'>",
  26         "<span class='column4'>",
  27         "<span class='column5'>",
  28         "<span class='column6'>",
  29         "</span>",
  30 };
  31
  32 #define COLUMN_COLORS_HTML_MAX (ARRAY_SIZE(column_colors_html) - 1)
  33
  34 static void count_lines(char *line, int size)
  35 {
  36         if (size <= 0)
  37                 return;
  38
  39         if (line[0] == '+')
  40                 add_lines++;
  41
  42         else if (line[0] == '-')
  43                 rem_lines++;
  44 }
  45
  46 static void inspect_files(struct diff_filepair *pair)
  47 {
  48         unsigned long old_size = 0;
  49         unsigned long new_size = 0;
  50         int binary = 0;
  51
  52         files++;
  53         if (ctx.repo->enable_log_linecount)
  54                 cgit_diff_files(&pair->one->oid, &pair->two->oid, &old_size,
  55                                 &new_size, &binary, 0, ctx.qry.ignorews,
  56                                 count_lines);
  57 }
  58
  59 void show_commit_decorations(struct commit *commit)
  60 {
  61         const struct name_decoration *deco;
  62         static char buf[1024];
  63
  64         buf[sizeof(buf) - 1] = 0;
  65         deco = get_name_decoration(&commit->object);
  66         if (!deco)
  67                 return;
  68         html("<span class='decoration'>");
  69         while (deco) {
  70                 struct object_id oid_tag, peeled;
  71                 int is_annotated = 0;
  72
  73                 strlcpy(buf, prettify_refname(deco->name), sizeof(buf));
  74                 switch(deco->type) {
  75                 case DECORATION_NONE:
  76                         /* If the git-core doesn't recognize it,
  77                          * don't display anything. */
  78                         break;
  79                 case DECORATION_REF_LOCAL:
  80                         cgit_log_link(buf, NULL, "branch-deco", buf, NULL,
  81                                 ctx.qry.vpath, 0, NULL, NULL,
  82                                 ctx.qry.showmsg, 0);
  83                         break;
  84                 case DECORATION_REF_TAG:
  85                         if (!refs_read_ref(get_main_ref_store(the_repository), deco->name, &oid_tag) &&
  86                             !peel_iterated_oid(the_repository, &oid_tag, &peeled))
  87                                 is_annotated = !oideq(&oid_tag, &peeled);
  88                         cgit_tag_link(buf, NULL, is_annotated ? "tag-annotated-deco" : "tag-deco", buf);
  89                         break;
  90                 case DECORATION_REF_REMOTE:
  91                         if (!ctx.repo->enable_remote_branches)
  92                                 break;
  93                         cgit_log_link(buf, NULL, "remote-deco", NULL,
  94                                 oid_to_hex(&commit->object.oid),
  95                                 ctx.qry.vpath, 0, NULL, NULL,
  96                                 ctx.qry.showmsg, 0);
  97                         break;
  98                 default:
  99                         cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
 100                                         oid_to_hex(&commit->object.oid),
 101                                         ctx.qry.vpath);
 102                         break;
 103                 }
 104                 deco = deco->next;
 105         }
 106         html("</span>");
 107 }
 108
 109 static void handle_rename(struct diff_filepair *pair)
 110 {
 111         /*
 112          * After we have seen a rename, we generate links to the previous
 113          * name of the file so that commit & diff views get fed the path
 114          * that is correct for the commit they are showing, avoiding the
 115          * need to walk the entire history leading back to every commit we
 116          * show in order detect renames.
 117          */
 118         if (0 != strcmp(ctx.qry.vpath, pair->two->path)) {
 119                 free(ctx.qry.vpath);
 120                 ctx.qry.vpath = xstrdup(pair->two->path);
 121         }
 122         inspect_files(pair);
 123 }
 124
 125 static int show_commit(struct commit *commit, struct rev_info *revs)
 126 {
 127         struct commit_list *parents = commit->parents;
 128         struct commit *parent;
 129         int found = 0, saved_fmt;
 130         struct diff_flags saved_flags = revs->diffopt.flags;
 131
 132         /* Always show if we're not in "follow" mode with a single file. */
 133         if (!ctx.qry.follow)
 134                 return 1;
 135
 136         /*
 137          * In "follow" mode, we don't show merges.  This is consistent with
 138          * "git log --follow -- <file>".
 139          */
 140         if (parents && parents->next)
 141                 return 0;
 142
 143         /*
 144          * If this is the root commit, do what rev_info tells us.
 145          */
 146         if (!parents)
 147                 return revs->show_root_diff;
 148
 149         /* When we get here we have precisely one parent. */
 150         parent = parents->item;
 151         /* If we can't parse the commit, let print_commit() report an error. */
 152         if (repo_parse_commit(the_repository, parent))
 153                 return 1;
 154
 155         files = 0;
 156         add_lines = 0;
 157         rem_lines = 0;
 158
 159         revs->diffopt.flags.recursive = 1;
 160         diff_tree_oid(get_commit_tree_oid(parent),
 161                       get_commit_tree_oid(commit),
 162                       "", &revs->diffopt);
 163         diffcore_std(&revs->diffopt);
 164
 165         found = !diff_queue_is_empty(&revs->diffopt);
 166         saved_fmt = revs->diffopt.output_format;
 167         revs->diffopt.output_format = DIFF_FORMAT_CALLBACK;
 168         revs->diffopt.format_callback = cgit_diff_tree_cb;
 169         revs->diffopt.format_callback_data = handle_rename;
 170         diff_flush(&revs->diffopt);
 171         revs->diffopt.output_format = saved_fmt;
 172         revs->diffopt.flags = saved_flags;
 173
 174         lines_counted = 1;
 175         return found;
 176 }
 177
 178 static void print_commit(struct commit *commit, struct rev_info *revs)
 179 {
 180         struct commitinfo *info;
 181         int columns = revs->graph ? 4 : 3;
 182         struct strbuf graphbuf = STRBUF_INIT;
 183         struct strbuf msgbuf = STRBUF_INIT;
 184
 185         if (ctx.repo->enable_log_filecount)
 186                 columns++;
 187         if (ctx.repo->enable_log_linecount)
 188                 columns++;
 189
 190         if (revs->graph) {
 191                 /* Advance graph until current commit */
 192                 while (!graph_next_line(revs->graph, &graphbuf)) {
 193                         /* Print graph segment in otherwise empty table row */
 194                         html("<tr class='nohover'><td class='commitgraph'>");
 195                         html(graphbuf.buf);
 196                         htmlf("</td><td colspan='%d' /></tr>\n", columns);
 197                         strbuf_setlen(&graphbuf, 0);
 198                 }
 199                 /* Current commit's graph segment is now ready in graphbuf */
 200         }
 201
 202         info = cgit_parse_commit(commit);
 203         htmlf("<tr%s>", ctx.qry.showmsg ? " class='logheader'" : "");
 204
 205         if (revs->graph) {
 206                 /* Print graph segment for current commit */
 207                 html("<td class='commitgraph'>");
 208                 html(graphbuf.buf);
 209                 html("</td>");
 210                 strbuf_setlen(&graphbuf, 0);
 211         }
 212         else {
 213                 html("<td>");
 214                 cgit_print_age(info->committer_date, info->committer_tz, TM_WEEK * 2);
 215                 html("</td>");
 216         }
 217
 218         htmlf("<td%s>", ctx.qry.showmsg ? " class='logsubject'" : "");
 219         if (ctx.qry.showmsg) {
 220                 /* line-wrap long commit subjects instead of truncating them */
 221                 size_t subject_len = strlen(info->subject);
 222
 223                 if (subject_len > ctx.cfg.max_msg_len &&
 224                     ctx.cfg.max_msg_len >= 15) {
 225                         /* symbol for signaling line-wrap (in PAGE_ENCODING) */
 226                         const char wrap_symbol[] = { ' ', 0xE2, 0x86, 0xB5, 0 };
 227                         int i = ctx.cfg.max_msg_len - strlen(wrap_symbol);
 228
 229                         /* Rewind i to preceding space character */
 230                         while (i > 0 && !isspace(info->subject[i]))
 231                                 --i;
 232                         if (!i) /* Oops, zero spaces. Reset i */
 233                                 i = ctx.cfg.max_msg_len - strlen(wrap_symbol);
 234
 235                         /* add remainder starting at i to msgbuf */
 236                         strbuf_add(&msgbuf, info->subject + i, subject_len - i);
 237                         strbuf_trim(&msgbuf);
 238                         strbuf_add(&msgbuf, "\n\n", 2);
 239
 240                         /* Place wrap_symbol at position i in info->subject */
 241                         strlcpy(info->subject + i, wrap_symbol, subject_len - i + 1);
 242                 }
 243         }
 244         cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
 245                          oid_to_hex(&commit->object.oid), ctx.qry.vpath);
 246         show_commit_decorations(commit);
 247         html("</td><td>");
 248         cgit_open_filter(ctx.repo->email_filter, info->author_email, "log");
 249         html_txt(info->author);
 250         cgit_close_filter(ctx.repo->email_filter);
 251
 252         if (revs->graph) {
 253                 html("</td><td>");
 254                 cgit_print_age(info->committer_date, info->committer_tz, TM_WEEK * 2);
 255         }
 256
 257         if (!lines_counted && (ctx.repo->enable_log_filecount ||
 258                                ctx.repo->enable_log_linecount)) {
 259                 files = 0;
 260                 add_lines = 0;
 261                 rem_lines = 0;
 262                 cgit_diff_commit(commit, inspect_files, ctx.qry.vpath);
 263         }
 264
 265         if (ctx.repo->enable_log_filecount)
 266                 htmlf("</td><td>%d", files);
 267         if (ctx.repo->enable_log_linecount)
 268                 htmlf("</td><td><span class='deletions'>-%d</span>/"
 269                         "<span class='insertions'>+%d</span>", rem_lines, add_lines);
 270
 271         html("</td></tr>\n");
 272
 273         if ((revs->graph && !graph_is_commit_finished(revs->graph))
 274                         || ctx.qry.showmsg) { /* Print a second table row */
 275                 html("<tr class='nohover-highlight'>");
 276
 277                 if (ctx.qry.showmsg) {
 278                         /* Concatenate commit message + notes in msgbuf */
 279                         if (info->msg && *(info->msg)) {
 280                                 strbuf_addstr(&msgbuf, info->msg);
 281                                 strbuf_addch(&msgbuf, '\n');
 282                         }
 283                         format_display_notes(&commit->object.oid,
 284                                              &msgbuf, PAGE_ENCODING, 0);
 285                         strbuf_addch(&msgbuf, '\n');
 286                         strbuf_ltrim(&msgbuf);
 287                 }
 288
 289                 if (revs->graph) {
 290                         int lines = 0;
 291
 292                         /* Calculate graph padding */
 293                         if (ctx.qry.showmsg) {
 294                                 /* Count #lines in commit message + notes */
 295                                 const char *p = msgbuf.buf;
 296                                 lines = 1;
 297                                 while ((p = strchr(p, '\n'))) {
 298                                         p++;
 299                                         lines++;
 300                                 }
 301                         }
 302
 303                         /* Print graph padding */
 304                         html("<td class='commitgraph'>");
 305                         while (lines > 0 || !graph_is_commit_finished(revs->graph)) {
 306                                 if (graphbuf.len)
 307                                         html("\n");
 308                                 strbuf_setlen(&graphbuf, 0);
 309                                 graph_next_line(revs->graph, &graphbuf);
 310                                 html(graphbuf.buf);
 311                                 lines--;
 312                         }
 313                         html("</td>\n");
 314                 }
 315                 else
 316                         html("<td/>"); /* Empty 'Age' column */
 317
 318                 /* Print msgbuf into remainder of table row */
 319                 htmlf("<td colspan='%d'%s>\n", columns - (revs->graph ? 1 : 0),
 320                         ctx.qry.showmsg ? " class='logmsg'" : "");
 321                 html_txt(msgbuf.buf);
 322                 html("</td></tr>\n");
 323         }
 324
 325         strbuf_release(&msgbuf);
 326         strbuf_release(&graphbuf);
 327         cgit_free_commitinfo(info);
 328 }
 329
 330 static const char *disambiguate_ref(const char *ref, int *must_free_result)
 331 {
 332         struct object_id oid;
 333         struct strbuf longref = STRBUF_INIT;
 334
 335         strbuf_addf(&longref, "refs/heads/%s", ref);
 336         if (repo_get_oid(the_repository, longref.buf, &oid) == 0) {
 337                 *must_free_result = 1;
 338                 return strbuf_detach(&longref, NULL);
 339         }
 340
 341         *must_free_result = 0;
 342         strbuf_release(&longref);
 343         return ref;
 344 }
 345
 346 static char *next_token(char **src)
 347 {
 348         char *result;
 349
 350         if (!src || !*src)
 351                 return NULL;
 352         while (isspace(**src))
 353                 (*src)++;
 354         if (!**src)
 355                 return NULL;
 356         result = *src;
 357         while (**src) {
 358                 if (isspace(**src)) {
 359                         **src = '\0';
 360                         (*src)++;
 361                         break;
 362                 }
 363                 (*src)++;
 364         }
 365         return result;
 366 }
 367
 368 void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern,
 369                     const char *path, int pager, int commit_graph, int commit_sort)
 370 {
 371         struct rev_info rev;
 372         struct commit *commit;
 373         struct strvec rev_argv = STRVEC_INIT;
 374         int i, columns = commit_graph ? 4 : 3;
 375         int must_free_tip = 0;
 376
 377         /* rev_argv.argv[0] will be ignored by setup_revisions */
 378         strvec_push(&rev_argv, "log_rev_setup");
 379
 380         if (!tip)
 381                 tip = ctx.qry.head;
 382         tip = disambiguate_ref(tip, &must_free_tip);
 383         strvec_push(&rev_argv, tip);
 384
 385         if (grep && pattern && *pattern) {
 386                 pattern = xstrdup(pattern);
 387                 if (!strcmp(grep, "grep") || !strcmp(grep, "author") ||
 388                     !strcmp(grep, "committer")) {
 389                         strvec_pushf(&rev_argv, "--%s=%s", grep, pattern);
 390                 } else if (!strcmp(grep, "range")) {
 391                         char *arg;
 392                         /* Split the pattern at whitespace and add each token
 393                          * as a revision expression. Do not accept other
 394                          * rev-list options. Also, replace the previously
 395                          * pushed tip (it's no longer relevant).
 396                          */
 397                         strvec_pop(&rev_argv);
 398                         while ((arg = next_token(&pattern))) {
 399                                 if (*arg == '-') {
 400                                         fprintf(stderr, "Bad range expr: %s\n",
 401                                                 arg);
 402                                         break;
 403                                 }
 404                                 strvec_push(&rev_argv, arg);
 405                         }
 406                 }
 407         }
 408
 409         if (!path || !ctx.cfg.enable_follow_links) {
 410                 /*
 411                  * If we don't have a path, "follow" is a no-op so make sure
 412                  * the variable is set to false to avoid needing to check
 413                  * both this and whether we have a path everywhere.
 414                  */
 415                 ctx.qry.follow = 0;
 416         }
 417
 418         if (commit_graph && !ctx.qry.follow) {
 419                 strvec_push(&rev_argv, "--graph");
 420                 strvec_push(&rev_argv, "--color");
 421                 graph_set_column_colors(column_colors_html,
 422                                         COLUMN_COLORS_HTML_MAX);
 423         }
 424
 425         if (commit_sort == 1)
 426                 strvec_push(&rev_argv, "--date-order");
 427         else if (commit_sort == 2)
 428                 strvec_push(&rev_argv, "--topo-order");
 429
 430         if (path && ctx.qry.follow)
 431                 strvec_push(&rev_argv, "--follow");
 432         strvec_push(&rev_argv, "--");
 433         if (path)
 434                 strvec_push(&rev_argv, path);
 435
 436         repo_init_revisions(the_repository, &rev, NULL);
 437         rev.abbrev = DEFAULT_ABBREV;
 438         rev.commit_format = CMIT_FMT_DEFAULT;
 439         rev.verbose_header = 1;
 440         rev.show_root_diff = 0;
 441         rev.ignore_missing = 1;
 442         rev.simplify_history = 1;
 443         setup_revisions(rev_argv.nr, rev_argv.v, &rev, NULL);
 444         load_ref_decorations(NULL, DECORATE_FULL_REFS);
 445         rev.show_decorations = 1;
 446         rev.grep_filter.ignore_case = 1;
 447
 448         rev.diffopt.detect_rename = 1;
 449         rev.diffopt.rename_limit = ctx.cfg.renamelimit;
 450         if (ctx.qry.ignorews)
 451                 DIFF_XDL_SET(&rev.diffopt, IGNORE_WHITESPACE);
 452
 453         compile_grep_patterns(&rev.grep_filter);
 454         prepare_revision_walk(&rev);
 455
 456         if (pager) {
 457                 cgit_print_layout_start();
 458                 html("<table class='list nowrap'>");
 459         }
 460
 461         html("<tr class='nohover'>");
 462         if (commit_graph)
 463                 html("<th></th>");
 464         else
 465                 html("<th class='left'>Age</th>");
 466         html("<th class='left'>Commit message");
 467         if (pager) {
 468                 html(" (");
 469                 cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
 470                               NULL, ctx.qry.head, ctx.qry.oid,
 471                               ctx.qry.vpath, ctx.qry.ofs, ctx.qry.grep,
 472                               ctx.qry.search, ctx.qry.showmsg ? 0 : 1,
 473                               ctx.qry.follow);
 474                 html(")");
 475         }
 476         html("</th><th class='left'>Author</th>");
 477         if (rev.graph)
 478                 html("<th class='left'>Age</th>");
 479         if (ctx.repo->enable_log_filecount) {
 480                 html("<th class='left'>Files</th>");
 481                 columns++;
 482         }
 483         if (ctx.repo->enable_log_linecount) {
 484                 html("<th class='left'>Lines</th>");
 485                 columns++;
 486         }
 487         html("</tr>\n");
 488
 489         if (ofs<0)
 490                 ofs = 0;
 491
 492         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; /* nop */) {
 493                 if (show_commit(commit, &rev))
 494                         i++;
 495                 release_commit_memory(the_repository->parsed_objects, commit);
 496                 commit->parents = NULL;
 497         }
 498
 499         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; /* nop */) {
 500                 /*
 501                  * In "follow" mode, we must count the files and lines the
 502                  * first time we invoke diff on a given commit, and we need
 503                  * to do that to see if the commit touches the path we care
 504                  * about, so we do it in show_commit.  Hence we must clear
 505                  * lines_counted here.
 506                  *
 507                  * This has the side effect of avoiding running diff twice
 508                  * when we are both following renames and showing file
 509                  * and/or line counts.
 510                  */
 511                 lines_counted = 0;
 512                 if (show_commit(commit, &rev)) {
 513                         i++;
 514                         print_commit(commit, &rev);
 515                 }
 516                 release_commit_memory(the_repository->parsed_objects, commit);
 517                 commit->parents = NULL;
 518         }
 519         if (pager) {
 520                 html("</table><ul class='pager'>");
 521                 if (ofs > 0) {
 522                         html("<li>");
 523                         cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
 524                                       ctx.qry.oid, ctx.qry.vpath,
 525                                       ofs - cnt, ctx.qry.grep,
 526                                       ctx.qry.search, ctx.qry.showmsg,
 527                                       ctx.qry.follow);
 528                         html("</li>");
 529                 }
 530                 if ((commit = get_revision(&rev)) != NULL) {
 531                         html("<li>");
 532                         cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
 533                                       ctx.qry.oid, ctx.qry.vpath,
 534                                       ofs + cnt, ctx.qry.grep,
 535                                       ctx.qry.search, ctx.qry.showmsg,
 536                                       ctx.qry.follow);
 537                         html("</li>");
 538                 }
 539                 html("</ul>");
 540                 cgit_print_layout_end();
 541         } else if ((commit = get_revision(&rev)) != NULL) {
 542                 htmlf("<tr class='nohover'><td colspan='%d'>", columns);
 543                 cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL,
 544                               ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg,
 545                               ctx.qry.follow);
 546                 html("</td></tr>\n");
 547         }
 548
 549         /* If we allocated tip then it is safe to cast away const. */
 550         if (must_free_tip)
 551                 free((char*) tip);
 552 }