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[ps-cgit] / ui-refs.c
1 /* ui-refs.c: browse symbolic refs
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 static int header;
14
15 static int cmp_age(int age1, int age2)
16 {
17         if (age1 != 0 && age2 != 0)
18                 return age2 - age1;
19
20         if (age1 == 0 && age2 == 0)
21                 return 0;
22
23         if (age1 == 0)
24                 return +1;
25
26         return -1;
27 }
28
29 static int cmp_ref_name(const void *a, const void *b)
30 {
31         struct refinfo *r1 = *(struct refinfo **)a;
32         struct refinfo *r2 = *(struct refinfo **)b;
33
34         return strcmp(r1->refname, r2->refname);
35 }
36
37 static int cmp_branch_age(const void *a, const void *b)
38 {
39         struct refinfo *r1 = *(struct refinfo **)a;
40         struct refinfo *r2 = *(struct refinfo **)b;
41
42         return cmp_age(r1->commit->committer_date, r2->commit->committer_date);
43 }
44
45 static int cmp_tag_age(const void *a, const void *b)
46 {
47         struct refinfo *r1 = *(struct refinfo **)a;
48         struct refinfo *r2 = *(struct refinfo **)b;
49
50         return cmp_age(r1->tag->tagger_date, r2->tag->tagger_date);
51 }
52
53 static int print_branch(struct refinfo *ref)
54 {
55         struct commitinfo *info = ref->commit;
56         char *name = (char *)ref->refname;
57
58         if (!info)
59                 return 1;
60         html("<tr><td>");
61         cgit_log_link(name, NULL, NULL, name, NULL, NULL, 0, NULL, NULL);
62         html("</td><td>");
63
64         if (ref->object->type == OBJ_COMMIT) {
65                 cgit_commit_link(info->subject, NULL, NULL, name, NULL);
66                 html("</td><td>");
67                 html_txt(info->author);
68                 html("</td><td colspan='2'>");
69                 cgit_print_age(info->commit->date, -1, NULL);
70         } else {
71                 html("</td><td></td><td>");
72                 cgit_object_link(ref->object);
73         }
74         html("</td></tr>\n");
75         return 0;
76 }
77
78 static void print_tag_header()
79 {
80         html("<tr class='nohover'><th class='left'>Tag</th>"
81              "<th class='left'>Reference</th>"
82              "<th class='left'>Author</th>"
83              "<th class='left' colspan='2'>Age</th></tr>\n");
84         header = 1;
85 }
86
87 static int print_tag(struct refinfo *ref)
88 {
89         struct tag *tag;
90         struct taginfo *info;
91         char *url, *name = (char *)ref->refname;
92
93         if (ref->object->type == OBJ_TAG) {
94                 tag = (struct tag *)ref->object;
95                 info = ref->tag;
96                 if (!tag || !info)
97                         return 1;
98                 html("<tr><td>");
99                 url = cgit_pageurl(ctx.qry.repo, "tag",
100                                    fmt("id=%s", name));
101                 html_link_open(url, NULL, NULL);
102                 html_txt(name);
103                 html_link_close();
104                 html("</td><td>");
105                 cgit_object_link(tag->tagged);
106                 html("</td><td>");
107                 if (info->tagger)
108                         html(info->tagger);
109                 html("</td><td colspan='2'>");
110                 if (info->tagger_date > 0)
111                         cgit_print_age(info->tagger_date, -1, NULL);
112                 html("</td></tr>\n");
113         } else {
114                 if (!header)
115                         print_tag_header();
116                 html("<tr><td>");
117                 html_txt(name);
118                 html("</td><td>");
119                 cgit_object_link(ref->object);
120                 html("</td></tr>\n");
121         }
122         return 0;
123 }
124
125 static void print_refs_link(char *path)
126 {
127         html("<tr class='nohover'><td colspan='4'>");
128         cgit_refs_link("[...]", NULL, NULL, ctx.qry.head, NULL, path);
129         html("</td></tr>");
130 }
131
132 void cgit_print_branches(int maxcount)
133 {
134         struct reflist list;
135         int i;
136
137         html("<tr class='nohover'><th class='left'>Branch</th>"
138              "<th class='left'>Commit message</th>"
139              "<th class='left'>Author</th>"
140              "<th class='left' colspan='2'>Age</th></tr>\n");
141
142         list.refs = NULL;
143         list.alloc = list.count = 0;
144         for_each_branch_ref(cgit_refs_cb, &list);
145
146         if (maxcount == 0 || maxcount > list.count)
147                 maxcount = list.count;
148
149         if (maxcount < list.count) {
150                 qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
151                 qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
152         }
153
154         for(i=0; i<maxcount; i++)
155                 print_branch(list.refs[i]);
156
157         if (maxcount < list.count)
158                 print_refs_link("heads");
159 }
160
161 void cgit_print_tags(int maxcount)
162 {
163         struct reflist list;
164         int i;
165
166         header = 0;
167         list.refs = NULL;
168         list.alloc = list.count = 0;
169         for_each_tag_ref(cgit_refs_cb, &list);
170         if (list.count == 0)
171                 return;
172         qsort(list.refs, list.count, sizeof(*list.refs), cmp_tag_age);
173         if (!maxcount)
174                 maxcount = list.count;
175         else if (maxcount > list.count)
176                 maxcount = list.count;
177         print_tag_header();
178         for(i=0; i<maxcount; i++)
179                 print_tag(list.refs[i]);
180
181         if (maxcount < list.count)
182                 print_refs_link("tags");
183 }
184
185 void cgit_print_refs()
186 {
187
188         html("<table class='list nowrap'>");
189
190         if (ctx.qry.path && !strncmp(ctx.qry.path, "heads", 5))
191                 cgit_print_branches(0);
192         else if (ctx.qry.path && !strncmp(ctx.qry.path, "tags", 4))
193                 cgit_print_tags(0);
194         else {
195                 cgit_print_branches(0);
196                 html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
197                 cgit_print_tags(0);
198         }
199         html("</table>");
200 }