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                         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 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
 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", cols);
 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) {
 177                 files = 0;
 178                 add_lines = 0;
 179                 rem_lines = 0;
 180                 cgit_diff_commit(commit, inspect_files, ctx.qry.vpath);
 181                 html("</td><td>");
 182                 htmlf("%d", files);
 183                 if (ctx.repo->enable_log_linecount) {
 184                         html("</td><td>");
 185                         htmlf("-%d/+%d", rem_lines, add_lines);
 186                 }
 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_note(NULL, commit->object.sha1, &msgbuf,
 200                                     PAGE_ENCODING,
 201                                     NOTES_SHOW_HEADER | NOTES_INDENT);
 202                         strbuf_addch(&msgbuf, '\n');
 203                         strbuf_ltrim(&msgbuf);
 204                 }
 205
 206                 if (revs->graph) {
 207                         int lines = 0;
 208
 209                         /* Calculate graph padding */
 210                         if (ctx.qry.showmsg) {
 211                                 /* Count #lines in commit message + notes */
 212                                 const char *p = msgbuf.buf;
 213                                 lines = 1;
 214                                 while ((p = strchr(p, '\n'))) {
 215                                         p++;
 216                                         lines++;
 217                                 }
 218                         }
 219
 220                         /* Print graph padding */
 221                         html("<td class='commitgraph'>");
 222                         while (lines > 0 || !graph_is_commit_finished(revs->graph)) {
 223                                 if (graphbuf.len)
 224                                         html("\n");
 225                                 strbuf_setlen(&graphbuf, 0);
 226                                 graph_next_line(revs->graph, &graphbuf);
 227                                 html(graphbuf.buf);
 228                                 lines--;
 229                         }
 230                         html("</td>\n");
 231                 }
 232                 else
 233                         html("<td/>"); /* Empty 'Age' column */
 234
 235                 /* Print msgbuf into remainder of table row */
 236                 htmlf("<td colspan='%d'%s>\n", cols,
 237                         ctx.qry.showmsg ? " class='logmsg'" : "");
 238                 html_txt(msgbuf.buf);
 239                 html("</td></tr>\n");
 240         }
 241
 242         strbuf_release(&msgbuf);
 243         strbuf_release(&graphbuf);
 244         cgit_free_commitinfo(info);
 245 }
 246
 247 static const char *disambiguate_ref(const char *ref)
 248 {
 249         unsigned char sha1[20];
 250         const char *longref;
 251
 252         longref = fmt("refs/heads/%s", ref);
 253         if (get_sha1(longref, sha1) == 0)
 254                 return longref;
 255
 256         return ref;
 257 }
 258
 259 static char *next_token(char **src)
 260 {
 261         char *result;
 262
 263         if (!src || !*src)
 264                 return NULL;
 265         while (isspace(**src))
 266                 (*src)++;
 267         if (!**src)
 268                 return NULL;
 269         result = *src;
 270         while (**src) {
 271                 if (isspace(**src)) {
 272                         **src = '\0';
 273                         (*src)++;
 274                         break;
 275                 }
 276                 (*src)++;
 277         }
 278         return result;
 279 }
 280
 281 void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern,
 282                     char *path, int pager, int commit_graph)
 283 {
 284         struct rev_info rev;
 285         struct commit *commit;
 286         struct vector vec = VECTOR_INIT(char *);
 287         int i, columns = 3;
 288         char *arg;
 289
 290         /* First argv is NULL */
 291         vector_push(&vec, NULL, 0);
 292
 293         if (!tip)
 294                 tip = ctx.qry.head;
 295         tip = disambiguate_ref(tip);
 296         vector_push(&vec, &tip, 0);
 297
 298         if (grep && pattern && *pattern) {
 299                 pattern = xstrdup(pattern);
 300                 if (!strcmp(grep, "grep") || !strcmp(grep, "author") ||
 301                     !strcmp(grep, "committer")) {
 302                         arg = fmt("--%s=%s", grep, pattern);
 303                         vector_push(&vec, &arg, 0);
 304                 }
 305                 if (!strcmp(grep, "range")) {
 306                         /* Split the pattern at whitespace and add each token
 307                          * as a revision expression. Do not accept other
 308                          * rev-list options. Also, replace the previously
 309                          * pushed tip (it's no longer relevant).
 310                          */
 311                         vec.count--;
 312                         while ((arg = next_token(&pattern))) {
 313                                 if (*arg == '-') {
 314                                         fprintf(stderr, "Bad range expr: %s\n",
 315                                                 arg);
 316                                         break;
 317                                 }
 318                                 vector_push(&vec, &arg, 0);
 319                         }
 320                 }
 321         }
 322         if (commit_graph) {
 323                 static const char *graph_arg = "--graph";
 324                 static const char *color_arg = "--color";
 325                 vector_push(&vec, &graph_arg, 0);
 326                 vector_push(&vec, &color_arg, 0);
 327                 graph_set_column_colors(column_colors_html,
 328                                         COLUMN_COLORS_HTML_MAX);
 329         }
 330
 331         if (path) {
 332                 arg = "--";
 333                 vector_push(&vec, &arg, 0);
 334                 vector_push(&vec, &path, 0);
 335         }
 336
 337         /* Make sure the vector is NULL-terminated */
 338         vector_push(&vec, NULL, 0);
 339         vec.count--;
 340
 341         init_revisions(&rev, NULL);
 342         rev.abbrev = DEFAULT_ABBREV;
 343         rev.commit_format = CMIT_FMT_DEFAULT;
 344         rev.verbose_header = 1;
 345         rev.show_root_diff = 0;
 346         setup_revisions(vec.count, vec.data, &rev, NULL);
 347         load_ref_decorations(DECORATE_FULL_REFS);
 348         rev.show_decorations = 1;
 349         rev.grep_filter.regflags |= REG_ICASE;
 350         compile_grep_patterns(&rev.grep_filter);
 351         prepare_revision_walk(&rev);
 352
 353         if (pager)
 354                 html("<table class='list nowrap'>");
 355
 356         html("<tr class='nohover'>");
 357         if (commit_graph)
 358                 html("<th></th>");
 359         else
 360                 html("<th class='left'>Age</th>");
 361         html("<th class='left'>Commit message");
 362         if (pager) {
 363                 html(" (");
 364                 cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
 365                               NULL, ctx.qry.head, ctx.qry.sha1,
 366                               ctx.qry.vpath, ctx.qry.ofs, ctx.qry.grep,
 367                               ctx.qry.search, ctx.qry.showmsg ? 0 : 1);
 368                 html(")");
 369         }
 370         html("</th><th class='left'>Author</th>");
 371         if (commit_graph)
 372                 html("<th class='left'>Age</th>");
 373         if (ctx.repo->enable_log_filecount) {
 374                 html("<th class='left'>Files</th>");
 375                 columns++;
 376                 if (ctx.repo->enable_log_linecount) {
 377                         html("<th class='left'>Lines</th>");
 378                         columns++;
 379                 }
 380         }
 381         html("</tr>\n");
 382
 383         if (ofs<0)
 384                 ofs = 0;
 385
 386         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
 387                 free(commit->buffer);
 388                 commit->buffer = NULL;
 389                 free_commit_list(commit->parents);
 390                 commit->parents = NULL;
 391         }
 392
 393         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
 394                 print_commit(commit, &rev);
 395                 free(commit->buffer);
 396                 commit->buffer = NULL;
 397                 free_commit_list(commit->parents);
 398                 commit->parents = NULL;
 399         }
 400         if (pager) {
 401                 html("</table><div class='pager'>");
 402                 if (ofs > 0) {
 403                         cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
 404                                       ctx.qry.sha1, ctx.qry.vpath,
 405                                       ofs - cnt, ctx.qry.grep,
 406                                       ctx.qry.search, ctx.qry.showmsg);
 407                         html("&nbsp;");
 408                 }
 409                 if ((commit = get_revision(&rev)) != NULL) {
 410                         cgit_log_link("[next]", 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                 }
 415                 html("</div>");
 416         } else if ((commit = get_revision(&rev)) != NULL) {
 417                 html("<tr class='nohover'><td colspan='3'>");
 418                 cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL,
 419                               ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg);
 420                 html("</td></tr>\n");
 421         }
 422 }