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