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ui-log.c: allow commit range as search expression
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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
13 int files, add_lines, rem_lines;
14
15 void count_lines(char *line, int size)
16 {
17         if (size <= 0)
18                 return;
19
20         if (line[0] == '+')
21                 add_lines++;
22
23         else if (line[0] == '-')
24                 rem_lines++;
25 }
26
27 void inspect_files(struct diff_filepair *pair)
28 {
29         unsigned long old_size = 0;
30         unsigned long new_size = 0;
31         int binary = 0;
32
33         files++;
34         if (ctx.repo->enable_log_linecount)
35                 cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size,
36                                 &new_size, &binary, count_lines);
37 }
38
39 void show_commit_decorations(struct commit *commit)
40 {
41         struct name_decoration *deco;
42         static char buf[1024];
43
44         buf[sizeof(buf) - 1] = 0;
45         deco = lookup_decoration(&name_decoration, &commit->object);
46         while (deco) {
47                 if (!prefixcmp(deco->name, "refs/heads/")) {
48                         strncpy(buf, deco->name + 11, sizeof(buf) - 1);
49                         cgit_log_link(buf, NULL, "branch-deco", buf, NULL, NULL,
50                                 0, NULL, NULL, ctx.qry.showmsg);
51                 }
52                 else if (!prefixcmp(deco->name, "tag: refs/tags/")) {
53                         strncpy(buf, deco->name + 15, sizeof(buf) - 1);
54                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
55                 }
56                 else if (!prefixcmp(deco->name, "refs/tags/")) {
57                         strncpy(buf, deco->name + 10, sizeof(buf) - 1);
58                         cgit_tag_link(buf, NULL, "tag-deco", ctx.qry.head, buf);
59                 }
60                 else if (!prefixcmp(deco->name, "refs/remotes/")) {
61                         strncpy(buf, deco->name + 13, sizeof(buf) - 1);
62                         cgit_log_link(buf, NULL, "remote-deco", NULL,
63                                 sha1_to_hex(commit->object.sha1), NULL,
64                                 0, NULL, NULL, ctx.qry.showmsg);
65                 }
66                 else {
67                         strncpy(buf, deco->name, sizeof(buf) - 1);
68                         cgit_commit_link(buf, NULL, "deco", ctx.qry.head,
69                                 sha1_to_hex(commit->object.sha1), 0);
70                 }
71                 deco = deco->next;
72         }
73 }
74
75 void print_commit(struct commit *commit)
76 {
77         struct commitinfo *info;
78         char *tmp;
79         int cols = 2;
80
81         info = cgit_parse_commit(commit);
82         htmlf("<tr%s><td>",
83                 ctx.qry.showmsg ? " class='logheader'" : "");
84         tmp = fmt("id=%s", sha1_to_hex(commit->object.sha1));
85         tmp = cgit_pageurl(ctx.repo->url, "commit", tmp);
86         html_link_open(tmp, NULL, NULL);
87         cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
88         html_link_close();
89         htmlf("</td><td%s>",
90                 ctx.qry.showmsg ? " class='logsubject'" : "");
91         cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head,
92                          sha1_to_hex(commit->object.sha1), 0);
93         show_commit_decorations(commit);
94         html("</td><td>");
95         html_txt(info->author);
96         if (ctx.repo->enable_log_filecount) {
97                 files = 0;
98                 add_lines = 0;
99                 rem_lines = 0;
100                 cgit_diff_commit(commit, inspect_files);
101                 html("</td><td>");
102                 htmlf("%d", files);
103                 if (ctx.repo->enable_log_linecount) {
104                         html("</td><td>");
105                         htmlf("-%d/+%d", rem_lines, add_lines);
106                 }
107         }
108         html("</td></tr>\n");
109         if (ctx.qry.showmsg) {
110                 if (ctx.repo->enable_log_filecount) {
111                         cols++;
112                         if (ctx.repo->enable_log_linecount)
113                                 cols++;
114                 }
115                 htmlf("<tr class='nohover'><td/><td colspan='%d' class='logmsg'>",
116                         cols);
117                 html_txt(info->msg);
118                 html("</td></tr>\n");
119         }
120         cgit_free_commitinfo(info);
121 }
122
123 static const char *disambiguate_ref(const char *ref)
124 {
125         unsigned char sha1[20];
126         const char *longref;
127
128         longref = fmt("refs/heads/%s", ref);
129         if (get_sha1(longref, sha1) == 0)
130                 return longref;
131
132         return ref;
133 }
134
135 void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern,
136                     char *path, int pager)
137 {
138         struct rev_info rev;
139         struct commit *commit;
140         const char *argv[] = {NULL, NULL, NULL, NULL, NULL};
141         int argc = 2;
142         int i, columns = 3;
143
144         if (!tip)
145                 tip = ctx.qry.head;
146
147         argv[1] = disambiguate_ref(tip);
148
149         if (grep && pattern) {
150                 if (!strcmp(grep, "grep") || !strcmp(grep, "author") ||
151                     !strcmp(grep, "committer"))
152                         argv[argc++] = fmt("--%s=%s", grep, pattern);
153                 if (!strcmp(grep, "range"))
154                         argv[1] = pattern;
155         }
156
157         if (path) {
158                 argv[argc++] = "--";
159                 argv[argc++] = path;
160         }
161         init_revisions(&rev, NULL);
162         rev.abbrev = DEFAULT_ABBREV;
163         rev.commit_format = CMIT_FMT_DEFAULT;
164         rev.verbose_header = 1;
165         rev.show_root_diff = 0;
166         setup_revisions(argc, argv, &rev, NULL);
167         load_ref_decorations(DECORATE_FULL_REFS);
168         rev.show_decorations = 1;
169         rev.grep_filter.regflags |= REG_ICASE;
170         compile_grep_patterns(&rev.grep_filter);
171         prepare_revision_walk(&rev);
172
173         if (pager)
174                 html("<table class='list nowrap'>");
175
176         html("<tr class='nohover'><th class='left'>Age</th>"
177               "<th class='left'>Commit message");
178         if (pager) {
179                 html(" (");
180                 cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
181                               NULL, ctx.qry.head, ctx.qry.sha1,
182                               ctx.qry.path, ctx.qry.ofs, ctx.qry.grep,
183                               ctx.qry.search, ctx.qry.showmsg ? 0 : 1);
184                 html(")");
185         }
186         html("</th><th class='left'>Author</th>");
187         if (ctx.repo->enable_log_filecount) {
188                 html("<th class='left'>Files</th>");
189                 columns++;
190                 if (ctx.repo->enable_log_linecount) {
191                         html("<th class='left'>Lines</th>");
192                         columns++;
193                 }
194         }
195         html("</tr>\n");
196
197         if (ofs<0)
198                 ofs = 0;
199
200         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
201                 free(commit->buffer);
202                 commit->buffer = NULL;
203                 free_commit_list(commit->parents);
204                 commit->parents = NULL;
205         }
206
207         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
208                 print_commit(commit);
209                 free(commit->buffer);
210                 commit->buffer = NULL;
211                 free_commit_list(commit->parents);
212                 commit->parents = NULL;
213         }
214         if (pager) {
215                 htmlf("</table><div class='pager'>",
216                      columns);
217                 if (ofs > 0) {
218                         cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
219                                       ctx.qry.sha1, ctx.qry.path,
220                                       ofs - cnt, ctx.qry.grep,
221                                       ctx.qry.search, ctx.qry.showmsg);
222                         html("&nbsp;");
223                 }
224                 if ((commit = get_revision(&rev)) != NULL) {
225                         cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
226                                       ctx.qry.sha1, ctx.qry.path,
227                                       ofs + cnt, ctx.qry.grep,
228                                       ctx.qry.search, ctx.qry.showmsg);
229                 }
230                 html("</div>");
231         } else if ((commit = get_revision(&rev)) != NULL) {
232                 html("<tr class='nohover'><td colspan='3'>");
233                 cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL, NULL, 0,
234                               NULL, NULL, ctx.qry.showmsg);
235                 html("</td></tr>\n");
236         }
237 }