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 "ui-log.h"
  11 #include "html.h"
  12 #include "ui-shared.h"
  13 #include "vector.h"
  14
  15 int files, add_lines, rem_lines;
  16
  17 /*
  18  * The list of available column colors in the commit graph.
  19  */
  20 static const char *column_colors_html[] = {
  21         "<span class='column1'>",
  22         "<span class='column2'>",
  23         "<span class='column3'>",
  24         "<span class='column4'>",
  25         "<span class='column5'>",
  26         "<span class='column6'>",
  27         "</span>",
  28 };
  29
  30 #define COLUMN_COLORS_HTML_MAX (ARRAY_SIZE(column_colors_html) - 1)
  31
  32 static void count_lines(char *line, int size)
  33 {
  34         if (size <= 0)
  35                 return;
  36
  37         if (line[0] == '+')
  38                 add_lines++;
  39
  40         else if (line[0] == '-')
  41                 rem_lines++;
  42 }
  43
  44 static void inspect_files(struct diff_filepair *pair)
  45 {
  46         unsigned long old_size = 0;
  47         unsigned long new_size = 0;
  48         int binary = 0;
  49
  50         files++;
  51         if (ctx.repo->enable_log_linecount)
  52                 cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
  53                                 &new_size, &binary, 0, ctx.qry.ignorews,
  54                                 count_lines);
  55 }
  56
  57 void show_commit_decorations(struct commit *commit)
  58 {
  59         struct name_decoration *deco;
  60         static char buf[1024];
  61
  62         buf[sizeof(buf) - 1] = 0;
  63         deco = lookup_decoration(&name_decoration, &commit->object);
  64         while (deco) {
  65                 if (!prefixcmp(deco->name, "refs/heads/")) {
  66                         strncpy(buf, deco->name + 11, sizeof(buf) - 1);
  67                         cgit_log_link(buf, NULL, "branch-deco", buf, NULL,
  68                                       ctx.qry.vpath, 0, NULL, NULL,
  69                                       ctx.qry.showmsg);
  70                 }
  71                 else if (!prefixcmp(deco->name, "tag: refs/tags/")) {
  72                         strncpy(buf, deco->name + 15, sizeof(buf) - 1);
  73                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
  74                 }
  75                 else if (!prefixcmp(deco->name, "refs/tags/")) {
  76                         strncpy(buf, deco->name + 10, sizeof(buf) - 1);
  77                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
  78                 }
  79                 else if (!prefixcmp(deco->name, "refs/remotes/")) {
  80                         if (!ctx.repo->enable_remote_branches)
  81                                 goto next;
  82                         strncpy(buf, deco->name + 13, sizeof(buf) - 1);
  83                         cgit_log_link(buf, NULL, "remote-deco", NULL,
  84                                       sha1_to_hex(commit->object.sha1),
  85                                       ctx.qry.vpath, 0, NULL, NULL,
  86                                       ctx.qry.showmsg);
  87                 }
  88                 else {
  89                         strncpy(buf, deco->name, sizeof(buf) - 1);
  90                         cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
  91                                          sha1_to_hex(commit->object.sha1),
  92                                          ctx.qry.vpath, 0);
  93                 }
  94 next:
  95                 deco = deco->next;
  96         }
  97 }
  98
  99 static void print_commit(struct commit *commit, struct rev_info *revs)
 100 {
 101         struct commitinfo *info;
 102         int columns = revs->graph ? 4 : 3;
 103         struct strbuf graphbuf = STRBUF_INIT;
 104         struct strbuf msgbuf = STRBUF_INIT;
 105
 106         if (ctx.repo->enable_log_filecount)
 107                 columns++;
 108         if (ctx.repo->enable_log_linecount)
 109                 columns++;
 110
 111         if (revs->graph) {
 112                 /* Advance graph until current commit */
 113                 while (!graph_next_line(revs->graph, &graphbuf)) {
 114                         /* Print graph segment in otherwise empty table row */
 115                         html("<tr class='nohover'><td class='commitgraph'>");
 116                         html(graphbuf.buf);
 117                         htmlf("</td><td colspan='%d' /></tr>\n", columns);
 118                         strbuf_setlen(&graphbuf, 0);
 119                 }
 120                 /* Current commit's graph segment is now ready in graphbuf */
 121         }
 122
 123         info = cgit_parse_commit(commit);
 124         htmlf("<tr%s>", ctx.qry.showmsg ? " class='logheader'" : "");
 125
 126         if (revs->graph) {
 127                 /* Print graph segment for current commit */
 128                 html("<td class='commitgraph'>");
 129                 html(graphbuf.buf);
 130                 html("</td>");
 131                 strbuf_setlen(&graphbuf, 0);
 132         }
 133         else {
 134                 html("<td>");
 135                 cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
 136                 html("</td>");
 137         }
 138
 139         htmlf("<td%s>", ctx.qry.showmsg ? " class='logsubject'" : "");
 140         if (ctx.qry.showmsg) {
 141                 /* line-wrap long commit subjects instead of truncating them */
 142                 size_t subject_len = strlen(info->subject);
 143
 144                 if (subject_len > ctx.cfg.max_msg_len &&
 145                     ctx.cfg.max_msg_len >= 15) {
 146                         /* symbol for signaling line-wrap (in PAGE_ENCODING) */
 147                         const char wrap_symbol[] = { ' ', 0xE2, 0x86, 0xB5, 0 };
 148                         int i = ctx.cfg.max_msg_len - strlen(wrap_symbol);
 149
 150                         /* Rewind i to preceding space character */
 151                         while (i > 0 && !isspace(info->subject[i]))
 152                                 --i;
 153                         if (!i) /* Oops, zero spaces. Reset i */
 154                                 i = ctx.cfg.max_msg_len - strlen(wrap_symbol);
 155
 156                         /* add remainder starting at i to msgbuf */
 157                         strbuf_add(&msgbuf, info->subject + i, subject_len - i);
 158                         strbuf_trim(&msgbuf);
 159                         strbuf_add(&msgbuf, "\n\n", 2);
 160
 161                         /* Place wrap_symbol at position i in info->subject */
 162                         strcpy(info->subject + i, wrap_symbol);
 163                 }
 164         }
 165         cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
 166                          sha1_to_hex(commit->object.sha1), ctx.qry.vpath, 0);
 167         show_commit_decorations(commit);
 168         html("</td><td>");
 169         html_txt(info->author);
 170
 171         if (revs->graph) {
 172                 html("</td><td>");
 173                 cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
 174         }
 175
 176         if (ctx.repo->enable_log_filecount || ctx.repo->enable_log_linecount) {
 177                 files = 0;
 178                 add_lines = 0;
 179                 rem_lines = 0;
 180                 cgit_diff_commit(commit, inspect_files, ctx.qry.vpath);
 181         }
 182
 183         if (ctx.repo->enable_log_filecount)
 184                 htmlf("</td><td>%d", files);
 185         if (ctx.repo->enable_log_linecount)
 186                 htmlf("</td><td>-%d/+%d", rem_lines, add_lines);
 187
 188         html("</td></tr>\n");
 189
 190         if (revs->graph || ctx.qry.showmsg) { /* Print a second table row */
 191                 html("<tr class='nohover'>");
 192
 193                 if (ctx.qry.showmsg) {
 194                         /* Concatenate commit message + notes in msgbuf */
 195                         if (info->msg && *(info->msg)) {
 196                                 strbuf_addstr(&msgbuf, info->msg);
 197                                 strbuf_addch(&msgbuf, '\n');
 198                         }
 199                         format_display_notes(commit->object.sha1,
 200                                              &msgbuf, PAGE_ENCODING, 0);
 201                         strbuf_addch(&msgbuf, '\n');
 202                         strbuf_ltrim(&msgbuf);
 203                 }
 204
 205                 if (revs->graph) {
 206                         int lines = 0;
 207
 208                         /* Calculate graph padding */
 209                         if (ctx.qry.showmsg) {
 210                                 /* Count #lines in commit message + notes */
 211                                 const char *p = msgbuf.buf;
 212                                 lines = 1;
 213                                 while ((p = strchr(p, '\n'))) {
 214                                         p++;
 215                                         lines++;
 216                                 }
 217                         }
 218
 219                         /* Print graph padding */
 220                         html("<td class='commitgraph'>");
 221                         while (lines > 0 || !graph_is_commit_finished(revs->graph)) {
 222                                 if (graphbuf.len)
 223                                         html("\n");
 224                                 strbuf_setlen(&graphbuf, 0);
 225                                 graph_next_line(revs->graph, &graphbuf);
 226                                 html(graphbuf.buf);
 227                                 lines--;
 228                         }
 229                         html("</td>\n");
 230                 }
 231                 else
 232                         html("<td/>"); /* Empty 'Age' column */
 233
 234                 /* Print msgbuf into remainder of table row */
 235                 htmlf("<td colspan='%d'%s>\n", columns - (revs->graph ? 1 : 0),
 236                         ctx.qry.showmsg ? " class='logmsg'" : "");
 237                 html_txt(msgbuf.buf);
 238                 html("</td></tr>\n");
 239         }
 240
 241         strbuf_release(&msgbuf);
 242         strbuf_release(&graphbuf);
 243         cgit_free_commitinfo(info);
 244 }
 245
 246 static const char *disambiguate_ref(const char *ref)
 247 {
 248         unsigned char sha1[20];
 249         const char *longref;
 250
 251         longref = fmt("refs/heads/%s", ref);
 252         if (get_sha1(longref, sha1) == 0)
 253                 return longref;
 254
 255         return ref;
 256 }
 257
 258 static char *next_token(char **src)
 259 {
 260         char *result;
 261
 262         if (!src || !*src)
 263                 return NULL;
 264         while (isspace(**src))
 265                 (*src)++;
 266         if (!**src)
 267                 return NULL;
 268         result = *src;
 269         while (**src) {
 270                 if (isspace(**src)) {
 271                         **src = '\0';
 272                         (*src)++;
 273                         break;
 274                 }
 275                 (*src)++;
 276         }
 277         return result;
 278 }
 279
 280 void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern,
 281                     char *path, int pager, int commit_graph, int commit_sort)
 282 {
 283         struct rev_info rev;
 284         struct commit *commit;
 285         struct vector vec = VECTOR_INIT(char *);
 286         int i, columns = commit_graph ? 4 : 3;
 287         char *arg;
 288
 289         /* First argv is NULL */
 290         vector_push(&vec, NULL, 0);
 291
 292         if (!tip)
 293                 tip = ctx.qry.head;
 294         tip = disambiguate_ref(tip);
 295         vector_push(&vec, &tip, 0);
 296
 297         if (grep && pattern && *pattern) {
 298                 pattern = xstrdup(pattern);
 299                 if (!strcmp(grep, "grep") || !strcmp(grep, "author") ||
 300                     !strcmp(grep, "committer")) {
 301                         arg = fmt("--%s=%s", grep, pattern);
 302                         vector_push(&vec, &arg, 0);
 303                 }
 304                 if (!strcmp(grep, "range")) {
 305                         /* Split the pattern at whitespace and add each token
 306                          * as a revision expression. Do not accept other
 307                          * rev-list options. Also, replace the previously
 308                          * pushed tip (it's no longer relevant).
 309                          */
 310                         vec.count--;
 311                         while ((arg = next_token(&pattern))) {
 312                                 if (*arg == '-') {
 313                                         fprintf(stderr, "Bad range expr: %s\n",
 314                                                 arg);
 315                                         break;
 316                                 }
 317                                 vector_push(&vec, &arg, 0);
 318                         }
 319                 }
 320         }
 321         if (commit_graph) {
 322                 static const char *graph_arg = "--graph";
 323                 static const char *color_arg = "--color";
 324                 vector_push(&vec, &graph_arg, 0);
 325                 vector_push(&vec, &color_arg, 0);
 326                 graph_set_column_colors(column_colors_html,
 327                                         COLUMN_COLORS_HTML_MAX);
 328         }
 329
 330         if (commit_sort == 1) {
 331                 static const char *date_order_arg = "--date-order";
 332                 vector_push(&vec, &date_order_arg, 0);
 333         } else if (commit_sort == 2) {
 334                 static const char *topo_order_arg = "--topo-order";
 335                 vector_push(&vec, &topo_order_arg, 0);
 336         }
 337
 338         if (path) {
 339                 arg = "--";
 340                 vector_push(&vec, &arg, 0);
 341                 vector_push(&vec, &path, 0);
 342         }
 343
 344         /* Make sure the vector is NULL-terminated */
 345         vector_push(&vec, NULL, 0);
 346         vec.count--;
 347
 348         init_revisions(&rev, NULL);
 349         rev.abbrev = DEFAULT_ABBREV;
 350         rev.commit_format = CMIT_FMT_DEFAULT;
 351         rev.verbose_header = 1;
 352         rev.show_root_diff = 0;
 353         setup_revisions(vec.count, vec.data, &rev, NULL);
 354         load_ref_decorations(DECORATE_FULL_REFS);
 355         rev.show_decorations = 1;
 356         rev.grep_filter.regflags |= REG_ICASE;
 357         compile_grep_patterns(&rev.grep_filter);
 358         prepare_revision_walk(&rev);
 359
 360         if (pager)
 361                 html("<table class='list nowrap'>");
 362
 363         html("<tr class='nohover'>");
 364         if (commit_graph)
 365                 html("<th></th>");
 366         else
 367                 html("<th class='left'>Age</th>");
 368         html("<th class='left'>Commit message");
 369         if (pager) {
 370                 html(" (");
 371                 cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
 372                               NULL, ctx.qry.head, ctx.qry.sha1,
 373                               ctx.qry.vpath, ctx.qry.ofs, ctx.qry.grep,
 374                               ctx.qry.search, ctx.qry.showmsg ? 0 : 1);
 375                 html(")");
 376         }
 377         html("</th><th class='left'>Author</th>");
 378         if (commit_graph)
 379                 html("<th class='left'>Age</th>");
 380         if (ctx.repo->enable_log_filecount) {
 381                 html("<th class='left'>Files</th>");
 382                 columns++;
 383         }
 384         if (ctx.repo->enable_log_linecount) {
 385                 html("<th class='left'>Lines</th>");
 386                 columns++;
 387         }
 388         html("</tr>\n");
 389
 390         if (ofs<0)
 391                 ofs = 0;
 392
 393         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
 394                 free(commit->buffer);
 395                 commit->buffer = NULL;
 396                 free_commit_list(commit->parents);
 397                 commit->parents = NULL;
 398         }
 399
 400         init_display_notes(NULL);
 401         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
 402                 print_commit(commit, &rev);
 403                 free(commit->buffer);
 404                 commit->buffer = NULL;
 405                 free_commit_list(commit->parents);
 406                 commit->parents = NULL;
 407         }
 408         if (pager) {
 409                 html("</table><ul class='pager'>");
 410                 if (ofs > 0) {
 411                         html("<li>");
 412                         cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
 413                                       ctx.qry.sha1, ctx.qry.vpath,
 414                                       ofs - cnt, ctx.qry.grep,
 415                                       ctx.qry.search, ctx.qry.showmsg);
 416                         html("</li>");
 417                 }
 418                 if ((commit = get_revision(&rev)) != NULL) {
 419                         html("<li>");
 420                         cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
 421                                       ctx.qry.sha1, ctx.qry.vpath,
 422                                       ofs + cnt, ctx.qry.grep,
 423                                       ctx.qry.search, ctx.qry.showmsg);
 424                         html("</li>");
 425                 }
 426                 html("</ul>");
 427         } else if ((commit = get_revision(&rev)) != NULL) {
 428                 htmlf("<tr class='nohover'><td colspan='%d'>", columns);
 429                 cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL,
 430                               ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg);
 431                 html("</td></tr>\n");
 432         }
 433 }