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 static 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 static 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                         if (!ctx.repo->enable_remote_branches)
  80                                 goto next;
  81                         strncpy(buf, deco->name + 13, sizeof(buf) - 1);
  82                         cgit_log_link(buf, NULL, "remote-deco", NULL,
  83                                       sha1_to_hex(commit->object.sha1),
  84                                       ctx.qry.vpath, 0, NULL, NULL,
  85                                       ctx.qry.showmsg);
  86                 }
  87                 else {
  88                         strncpy(buf, deco->name, sizeof(buf) - 1);
  89                         cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
  90                                          sha1_to_hex(commit->object.sha1),
  91                                          ctx.qry.vpath, 0);
  92                 }
  93 next:
  94                 deco = deco->next;
  95         }
  96 }
  97
  98 static void print_commit(struct commit *commit, struct rev_info *revs)
  99 {
 100         struct commitinfo *info;
 101         int cols = revs->graph ? 3 : 2;
 102         struct strbuf graphbuf = STRBUF_INIT;
 103         struct strbuf msgbuf = STRBUF_INIT;
 104
 105         if (ctx.repo->enable_log_filecount)
 106                 cols++;
 107         if (ctx.repo->enable_log_linecount)
 108                 cols++;
 109
 110         if (revs->graph) {
 111                 /* Advance graph until current commit */
 112                 while (!graph_next_line(revs->graph, &graphbuf)) {
 113                         /* Print graph segment in otherwise empty table row */
 114                         html("<tr class='nohover'><td class='commitgraph'>");
 115                         html(graphbuf.buf);
 116                         htmlf("</td><td colspan='%d' /></tr>\n", cols);
 117                         strbuf_setlen(&graphbuf, 0);
 118                 }
 119                 /* Current commit's graph segment is now ready in graphbuf */
 120         }
 121
 122         info = cgit_parse_commit(commit);
 123         htmlf("<tr%s>", ctx.qry.showmsg ? " class='logheader'" : "");
 124
 125         if (revs->graph) {
 126                 /* Print graph segment for current commit */
 127                 html("<td class='commitgraph'>");
 128                 html(graphbuf.buf);
 129                 html("</td>");
 130                 strbuf_setlen(&graphbuf, 0);
 131         }
 132         else {
 133                 html("<td>");
 134                 cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
 135                 html("</td>");
 136         }
 137
 138         htmlf("<td%s>", ctx.qry.showmsg ? " class='logsubject'" : "");
 139         if (ctx.qry.showmsg) {
 140                 /* line-wrap long commit subjects instead of truncating them */
 141                 size_t subject_len = strlen(info->subject);
 142
 143                 if (subject_len > ctx.cfg.max_msg_len &&
 144                     ctx.cfg.max_msg_len >= 15) {
 145                         /* symbol for signaling line-wrap (in PAGE_ENCODING) */
 146                         const char wrap_symbol[] = { ' ', 0xE2, 0x86, 0xB5, 0 };
 147                         int i = ctx.cfg.max_msg_len - strlen(wrap_symbol);
 148
 149                         /* Rewind i to preceding space character */
 150                         while (i > 0 && !isspace(info->subject[i]))
 151                                 --i;
 152                         if (!i) /* Oops, zero spaces. Reset i */
 153                                 i = ctx.cfg.max_msg_len - strlen(wrap_symbol);
 154
 155                         /* add remainder starting at i to msgbuf */
 156                         strbuf_add(&msgbuf, info->subject + i, subject_len - i);
 157                         strbuf_trim(&msgbuf);
 158                         strbuf_add(&msgbuf, "\n\n", 2);
 159
 160                         /* Place wrap_symbol at position i in info->subject */
 161                         strcpy(info->subject + i, wrap_symbol);
 162                 }
 163         }
 164         cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
 165                          sha1_to_hex(commit->object.sha1), ctx.qry.vpath, 0);
 166         show_commit_decorations(commit);
 167         html("</td><td>");
 168         html_txt(info->author);
 169
 170         if (revs->graph) {
 171                 html("</td><td>");
 172                 cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
 173         }
 174
 175         if (ctx.repo->enable_log_filecount || ctx.repo->enable_log_linecount) {
 176                 files = 0;
 177                 add_lines = 0;
 178                 rem_lines = 0;
 179                 cgit_diff_commit(commit, inspect_files, ctx.qry.vpath);
 180         }
 181
 182         if (ctx.repo->enable_log_filecount)
 183                 htmlf("</td><td>%d", files);
 184         if (ctx.repo->enable_log_linecount)
 185                 htmlf("</td><td>-%d/+%d", rem_lines, add_lines);
 186
 187         html("</td></tr>\n");
 188
 189         if (revs->graph || ctx.qry.showmsg) { /* Print a second table row */
 190                 html("<tr class='nohover'>");
 191
 192                 if (ctx.qry.showmsg) {
 193                         /* Concatenate commit message + notes in msgbuf */
 194                         if (info->msg && *(info->msg)) {
 195                                 strbuf_addstr(&msgbuf, info->msg);
 196                                 strbuf_addch(&msgbuf, '\n');
 197                         }
 198                         format_note(NULL, commit->object.sha1, &msgbuf,
 199                                     PAGE_ENCODING,
 200                                     NOTES_SHOW_HEADER | NOTES_INDENT);
 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", cols,
 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 = 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         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
 401                 print_commit(commit, &rev);
 402                 free(commit->buffer);
 403                 commit->buffer = NULL;
 404                 free_commit_list(commit->parents);
 405                 commit->parents = NULL;
 406         }
 407         if (pager) {
 408                 html("</table><div class='pager'>");
 409                 if (ofs > 0) {
 410                         cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
 411                                       ctx.qry.sha1, ctx.qry.vpath,
 412                                       ofs - cnt, ctx.qry.grep,
 413                                       ctx.qry.search, ctx.qry.showmsg);
 414                         html("&nbsp;");
 415                 }
 416                 if ((commit = get_revision(&rev)) != NULL) {
 417                         cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
 418                                       ctx.qry.sha1, ctx.qry.vpath,
 419                                       ofs + cnt, ctx.qry.grep,
 420                                       ctx.qry.search, ctx.qry.showmsg);
 421                 }
 422                 html("</div>");
 423         } else if ((commit = get_revision(&rev)) != NULL) {
 424                 html("<tr class='nohover'><td colspan='3'>");
 425                 cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL,
 426                               ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg);
 427                 html("</td></tr>\n");
 428         }
 429 }