]> gitweb.ps.run Git - ps-cgit/blob - ui-log.c
ui-log: Implement support for commit graphs
[ps-cgit] / 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 void count_lines(char *line, int size)
17 {
18         if (size <= 0)
19                 return;
20
21         if (line[0] == '+')
22                 add_lines++;
23
24         else if (line[0] == '-')
25                 rem_lines++;
26 }
27
28 void inspect_files(struct diff_filepair *pair)
29 {
30         unsigned long old_size = 0;
31         unsigned long new_size = 0;
32         int binary = 0;
33
34         files++;
35         if (ctx.repo->enable_log_linecount)
36                 cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
37                                 &new_size, &binary, 0, ctx.qry.ignorews,
38                                 count_lines);
39 }
40
41 void show_commit_decorations(struct commit *commit)
42 {
43         struct name_decoration *deco;
44         static char buf[1024];
45
46         buf[sizeof(buf) - 1] = 0;
47         deco = lookup_decoration(&name_decoration, &commit->object);
48         while (deco) {
49                 if (!prefixcmp(deco->name, "refs/heads/")) {
50                         strncpy(buf, deco->name + 11, sizeof(buf) - 1);
51                         cgit_log_link(buf, NULL, "branch-deco", buf, NULL,
52                                       ctx.qry.vpath, 0, NULL, NULL,
53                                       ctx.qry.showmsg);
54                 }
55                 else if (!prefixcmp(deco->name, "tag: refs/tags/")) {
56                         strncpy(buf, deco->name + 15, sizeof(buf) - 1);
57                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
58                 }
59                 else if (!prefixcmp(deco->name, "refs/tags/")) {
60                         strncpy(buf, deco->name + 10, sizeof(buf) - 1);
61                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
62                 }
63                 else if (!prefixcmp(deco->name, "refs/remotes/")) {
64                         strncpy(buf, deco->name + 13, sizeof(buf) - 1);
65                         cgit_log_link(buf, NULL, "remote-deco", NULL,
66                                       sha1_to_hex(commit->object.sha1),
67                                       ctx.qry.vpath, 0, NULL, NULL,
68                                       ctx.qry.showmsg);
69                 }
70                 else {
71                         strncpy(buf, deco->name, sizeof(buf) - 1);
72                         cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
73                                          sha1_to_hex(commit->object.sha1),
74                                          ctx.qry.vpath, 0);
75                 }
76                 deco = deco->next;
77         }
78 }
79
80 void print_commit(struct commit *commit, struct rev_info *revs)
81 {
82         struct commitinfo *info;
83         char *tmp;
84         int cols = 2;
85         struct strbuf graphbuf = STRBUF_INIT;
86
87         if (ctx.repo->enable_log_filecount) {
88                 cols++;
89                 if (ctx.repo->enable_log_linecount)
90                         cols++;
91         }
92
93         if (revs->graph) {
94                 /* Advance graph until current commit */
95                 while (!graph_next_line(revs->graph, &graphbuf)) {
96                         /* Print graph segment in otherwise empty table row */
97                         html("<tr class='nohover'><td/><td class='commitgraph'>");
98                         html(graphbuf.buf);
99                         htmlf("</td><td colspan='%d' /></tr>\n", cols);
100                         strbuf_setlen(&graphbuf, 0);
101                 }
102                 /* Current commit's graph segment is now ready in graphbuf */
103         }
104
105         info = cgit_parse_commit(commit);
106         htmlf("<tr%s><td>",
107                 ctx.qry.showmsg ? " class='logheader'" : "");
108         tmp = fmt("id=%s", sha1_to_hex(commit->object.sha1));
109         tmp = cgit_fileurl(ctx.repo->url, "commit", ctx.qry.vpath, tmp);
110         html_link_open(tmp, NULL, NULL);
111         cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
112         html_link_close();
113         html("</td>");
114
115         if (revs->graph) {
116                 /* Print graph segment for current commit */
117                 html("<td class='commitgraph'>");
118                 html(graphbuf.buf);
119                 html("</td>");
120                 strbuf_setlen(&graphbuf, 0);
121         }
122
123         htmlf("<td%s>", ctx.qry.showmsg ? " class='logsubject'" : "");
124         cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
125                          sha1_to_hex(commit->object.sha1), ctx.qry.vpath, 0);
126         show_commit_decorations(commit);
127         html("</td><td>");
128         html_txt(info->author);
129         if (ctx.repo->enable_log_filecount) {
130                 files = 0;
131                 add_lines = 0;
132                 rem_lines = 0;
133                 cgit_diff_commit(commit, inspect_files, ctx.qry.vpath);
134                 html("</td><td>");
135                 htmlf("%d", files);
136                 if (ctx.repo->enable_log_linecount) {
137                         html("</td><td>");
138                         htmlf("-%d/+%d", rem_lines, add_lines);
139                 }
140         }
141         html("</td></tr>\n");
142
143         if (revs->graph || ctx.qry.showmsg) { /* Print a second table row */
144                 struct strbuf msgbuf = STRBUF_INIT;
145                 html("<tr class='nohover'><td/>"); /* Empty 'Age' column */
146
147                 if (ctx.qry.showmsg) {
148                         /* Concatenate commit message + notes in msgbuf */
149                         if (info->msg && *(info->msg)) {
150                                 strbuf_addstr(&msgbuf, info->msg);
151                                 strbuf_addch(&msgbuf, '\n');
152                         }
153                         format_note(NULL, commit->object.sha1, &msgbuf,
154                                     PAGE_ENCODING,
155                                     NOTES_SHOW_HEADER | NOTES_INDENT);
156                         strbuf_addch(&msgbuf, '\n');
157                         strbuf_ltrim(&msgbuf);
158                 }
159
160                 if (revs->graph) {
161                         int lines = 0;
162
163                         /* Calculate graph padding */
164                         if (ctx.qry.showmsg) {
165                                 /* Count #lines in commit message + notes */
166                                 const char *p = msgbuf.buf;
167                                 lines = 1;
168                                 while ((p = strchr(p, '\n'))) {
169                                         p++;
170                                         lines++;
171                                 }
172                         }
173
174                         /* Print graph padding */
175                         html("<td class='commitgraph'>");
176                         while (lines > 0 || !graph_is_commit_finished(revs->graph)) {
177                                 if (graphbuf.len)
178                                         html("\n");
179                                 strbuf_setlen(&graphbuf, 0);
180                                 graph_next_line(revs->graph, &graphbuf);
181                                 html(graphbuf.buf);
182                                 lines--;
183                         }
184                         html("</td>\n");
185                 }
186
187                 /* Print msgbuf into remainder of table row */
188                 htmlf("<td colspan='%d'%s>\n", cols,
189                         ctx.qry.showmsg ? " class='logmsg'" : "");
190                 html_txt(msgbuf.buf);
191                 html("</td></tr>\n");
192                 strbuf_release(&msgbuf);
193         }
194
195         strbuf_release(&graphbuf);
196         cgit_free_commitinfo(info);
197 }
198
199 static const char *disambiguate_ref(const char *ref)
200 {
201         unsigned char sha1[20];
202         const char *longref;
203
204         longref = fmt("refs/heads/%s", ref);
205         if (get_sha1(longref, sha1) == 0)
206                 return longref;
207
208         return ref;
209 }
210
211 static char *next_token(char **src)
212 {
213         char *result;
214
215         if (!src || !*src)
216                 return NULL;
217         while (isspace(**src))
218                 (*src)++;
219         if (!**src)
220                 return NULL;
221         result = *src;
222         while (**src) {
223                 if (isspace(**src)) {
224                         **src = '\0';
225                         (*src)++;
226                         break;
227                 }
228                 (*src)++;
229         }
230         return result;
231 }
232
233 void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern,
234                     char *path, int pager)
235 {
236         struct rev_info rev;
237         struct commit *commit;
238         struct vector vec = VECTOR_INIT(char *);
239         int i, columns = 3;
240         char *arg;
241
242         /* First argv is NULL */
243         vector_push(&vec, NULL, 0);
244
245         if (!tip)
246                 tip = ctx.qry.head;
247         tip = disambiguate_ref(tip);
248         vector_push(&vec, &tip, 0);
249
250         if (grep && pattern && *pattern) {
251                 pattern = xstrdup(pattern);
252                 if (!strcmp(grep, "grep") || !strcmp(grep, "author") ||
253                     !strcmp(grep, "committer")) {
254                         arg = fmt("--%s=%s", grep, pattern);
255                         vector_push(&vec, &arg, 0);
256                 }
257                 if (!strcmp(grep, "range")) {
258                         /* Split the pattern at whitespace and add each token
259                          * as a revision expression. Do not accept other
260                          * rev-list options. Also, replace the previously
261                          * pushed tip (it's no longer relevant).
262                          */
263                         vec.count--;
264                         while ((arg = next_token(&pattern))) {
265                                 if (*arg == '-') {
266                                         fprintf(stderr, "Bad range expr: %s\n",
267                                                 arg);
268                                         break;
269                                 }
270                                 vector_push(&vec, &arg, 0);
271                         }
272                 }
273         }
274         if (ctx.repo->enable_commit_graph) {
275                 static const char *graph_arg = "--graph";
276                 vector_push(&vec, &graph_arg, 0);
277         }
278
279         if (path) {
280                 arg = "--";
281                 vector_push(&vec, &arg, 0);
282                 vector_push(&vec, &path, 0);
283         }
284
285         /* Make sure the vector is NULL-terminated */
286         vector_push(&vec, NULL, 0);
287         vec.count--;
288
289         init_revisions(&rev, NULL);
290         rev.abbrev = DEFAULT_ABBREV;
291         rev.commit_format = CMIT_FMT_DEFAULT;
292         rev.verbose_header = 1;
293         rev.show_root_diff = 0;
294         setup_revisions(vec.count, vec.data, &rev, NULL);
295         load_ref_decorations(DECORATE_FULL_REFS);
296         rev.show_decorations = 1;
297         rev.grep_filter.regflags |= REG_ICASE;
298         compile_grep_patterns(&rev.grep_filter);
299         prepare_revision_walk(&rev);
300
301         if (pager)
302                 html("<table class='list nowrap'>");
303
304         html("<tr class='nohover'><th class='left'>Age</th>");
305         if (ctx.repo->enable_commit_graph)
306                 html("<th></th>");
307         html("<th class='left'>Commit message");
308         if (pager) {
309                 html(" (");
310                 cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
311                               NULL, ctx.qry.head, ctx.qry.sha1,
312                               ctx.qry.vpath, ctx.qry.ofs, ctx.qry.grep,
313                               ctx.qry.search, ctx.qry.showmsg ? 0 : 1);
314                 html(")");
315         }
316         html("</th><th class='left'>Author</th>");
317         if (ctx.repo->enable_log_filecount) {
318                 html("<th class='left'>Files</th>");
319                 columns++;
320                 if (ctx.repo->enable_log_linecount) {
321                         html("<th class='left'>Lines</th>");
322                         columns++;
323                 }
324         }
325         html("</tr>\n");
326
327         if (ofs<0)
328                 ofs = 0;
329
330         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
331                 free(commit->buffer);
332                 commit->buffer = NULL;
333                 free_commit_list(commit->parents);
334                 commit->parents = NULL;
335         }
336
337         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
338                 print_commit(commit, &rev);
339                 free(commit->buffer);
340                 commit->buffer = NULL;
341                 free_commit_list(commit->parents);
342                 commit->parents = NULL;
343         }
344         if (pager) {
345                 html("</table><div class='pager'>");
346                 if (ofs > 0) {
347                         cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
348                                       ctx.qry.sha1, ctx.qry.vpath,
349                                       ofs - cnt, ctx.qry.grep,
350                                       ctx.qry.search, ctx.qry.showmsg);
351                         html("&nbsp;");
352                 }
353                 if ((commit = get_revision(&rev)) != NULL) {
354                         cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
355                                       ctx.qry.sha1, ctx.qry.vpath,
356                                       ofs + cnt, ctx.qry.grep,
357                                       ctx.qry.search, ctx.qry.showmsg);
358                 }
359                 html("</div>");
360         } else if ((commit = get_revision(&rev)) != NULL) {
361                 html("<tr class='nohover'><td colspan='3'>");
362                 cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL,
363                               ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg);
364                 html("</td></tr>\n");
365         }
366 }