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