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
 13static int header;
 14
 15static 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
 29static 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
 37static 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
 45static 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
 53static 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
 78static 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
 87static 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
125static 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
132void 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
161void 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
185void 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}