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Add simple pager to log page
[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
11 static int get_one_line(char *txt)
12 {
13         char *t;
14
15         for(t=txt; *t != '\n' && t != '\0'; t++)
16                 ;
17         *t = '\0';
18         return t-txt-1;
19 }
20
21 static void cgit_print_commit_shortlog(struct commit *commit)
22 {
23         char *h, *t, *p; 
24         char *tree = NULL, *author = NULL, *subject = NULL;
25         int len;
26         time_t sec;
27         struct tm *time;
28         char buf[32];
29
30         h = t = commit->buffer;
31         
32         if (strncmp(h, "tree ", 5))
33                 die("Bad commit format: %s", 
34                     sha1_to_hex(commit->object.sha1));
35         
36         len = get_one_line(h);
37         tree = h+5;
38         h += len + 2;
39
40         while (!strncmp(h, "parent ", 7))
41                 h += get_one_line(h) + 2;
42         
43         if (!strncmp(h, "author ", 7)) {
44                 author = h+7;
45                 h += get_one_line(h) + 2;
46                 t = author;
47                 while(t!=h && *t!='<') 
48                         t++;
49                 *t='\0';
50                 p = t;
51                 while(--t!=author && *t==' ')
52                         *t='\0';
53                 while(++p!=h && *p!='>')
54                         ;
55                 while(++p!=h && !isdigit(*p))
56                         ;
57
58                 t = p;
59                 while(++p && isdigit(*p))
60                         ;
61                 *p = '\0';
62                 sec = atoi(t);
63                 time = gmtime(&sec);
64         }
65
66         while((len = get_one_line(h)) > 0)
67                 h += len+2;
68
69         h++;
70         len = get_one_line(h);
71
72         subject = h;
73
74         html("<tr><td>");
75         strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", time);
76         html_txt(buf);
77         html("</td><td>");
78         char *qry = fmt("id=%s", sha1_to_hex(commit->object.sha1));
79         char *url = cgit_pageurl(cgit_query_repo, "view", qry);
80         html_link_open(url, NULL, NULL);
81         html_txt(subject);
82         html_link_close();
83         html("</td><td>");
84         html_txt(author);
85         html("</td><td><a href='");
86         html_attr(cgit_pageurl(cgit_query_repo, "tree", 
87                                fmt("id=%s", 
88                                    sha1_to_hex(commit->tree->object.sha1))));
89         html("'>tree</a>");
90         html("</td></tr>\n");
91 }
92
93 void cgit_print_log(const char *tip, int ofs, int cnt)
94 {
95         struct rev_info rev;
96         struct commit *commit;
97         const char *argv[2] = {NULL, tip};
98         int i;
99         
100         init_revisions(&rev, NULL);
101         rev.abbrev = DEFAULT_ABBREV;
102         rev.commit_format = CMIT_FMT_DEFAULT;
103         rev.verbose_header = 1;
104         rev.show_root_diff = 0;
105         setup_revisions(2, argv, &rev, NULL);
106         prepare_revision_walk(&rev);
107
108         html("<h2>Log</h2>");
109         html("<table class='list'>");
110         html("<tr><th>Date</th><th>Message</th><th>Author</th><th>Link</th></tr>\n");
111
112         if (ofs<0)
113                 ofs = 0;
114
115         for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
116                 free(commit->buffer);
117                 commit->buffer = NULL;
118                 free_commit_list(commit->parents);
119                 commit->parents = NULL;
120         }
121
122         for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
123                 cgit_print_commit_shortlog(commit);
124                 free(commit->buffer);
125                 commit->buffer = NULL;
126                 free_commit_list(commit->parents);
127                 commit->parents = NULL;
128         }
129         html("</table>\n");
130
131         html("<div class='pager'>");
132         if (ofs > 0) {
133                 html("&nbsp;<a href='");
134                 html(cgit_pageurl(cgit_query_repo, cgit_query_page,
135                                   fmt("h=%s&ofs=%d", tip, ofs-cnt)));
136                 html("'>[prev]</a>&nbsp;");
137         }
138
139         if ((commit = get_revision(&rev)) != NULL) {
140                 html("&nbsp;<a href='");
141                 html(cgit_pageurl(cgit_query_repo, "log",
142                                   fmt("h=%s&ofs=%d", tip, ofs+cnt)));
143                 html("'>[next]</a>&nbsp;");
144         }
145         html("</div>");
146 }
147