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		      ctx.qry.showmsg);
 63	html("</td><td>");
 64
 65	if (ref->object->type == OBJ_COMMIT) {
 66		cgit_commit_link(info->subject, NULL, NULL, name, NULL);
 67		html("</td><td>");
 68		html_txt(info->author);
 69		html("</td><td colspan='2'>");
 70		cgit_print_age(info->commit->date, -1, NULL);
 71	} else {
 72		html("</td><td></td><td>");
 73		cgit_object_link(ref->object);
 74	}
 75	html("</td></tr>\n");
 76	return 0;
 77}
 78
 79static void print_tag_header()
 80{
 81	html("<tr class='nohover'><th class='left'>Tag</th>"
 82	     "<th class='left'>Reference</th>"
 83	     "<th class='left'>Author</th>"
 84	     "<th class='left' colspan='2'>Age</th></tr>\n");
 85	header = 1;
 86}
 87
 88static int print_tag(struct refinfo *ref)
 89{
 90	struct tag *tag;
 91	struct taginfo *info;
 92	char *name = (char *)ref->refname;
 93
 94	if (ref->object->type == OBJ_TAG) {
 95		tag = (struct tag *)ref->object;
 96		info = ref->tag;
 97		if (!tag || !info)
 98			return 1;
 99		html("<tr><td>");
100		cgit_tag_link(name, NULL, NULL, ctx.qry.head, name);
101		html("</td><td>");
102		cgit_object_link(tag->tagged);
103		html("</td><td>");
104		if (info->tagger)
105			html(info->tagger);
106		html("</td><td colspan='2'>");
107		if (info->tagger_date > 0)
108			cgit_print_age(info->tagger_date, -1, NULL);
109		html("</td></tr>\n");
110	} else {
111		if (!header)
112			print_tag_header();
113		html("<tr><td>");
114		html_txt(name);
115		html("</td><td>");
116		cgit_object_link(ref->object);
117		html("</td></tr>\n");
118	}
119	return 0;
120}
121
122static void print_refs_link(char *path)
123{
124	html("<tr class='nohover'><td colspan='4'>");
125	cgit_refs_link("[...]", NULL, NULL, ctx.qry.head, NULL, path);
126	html("</td></tr>");
127}
128
129void cgit_print_branches(int maxcount)
130{
131	struct reflist list;
132	int i;
133
134	html("<tr class='nohover'><th class='left'>Branch</th>"
135	     "<th class='left'>Commit message</th>"
136	     "<th class='left'>Author</th>"
137	     "<th class='left' colspan='2'>Age</th></tr>\n");
138
139	list.refs = NULL;
140	list.alloc = list.count = 0;
141	for_each_branch_ref(cgit_refs_cb, &list);
142
143	if (maxcount == 0 || maxcount > list.count)
144		maxcount = list.count;
145
146	if (maxcount < list.count) {
147		qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
148		qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
149	}
150
151	for(i=0; i<maxcount; i++)
152		print_branch(list.refs[i]);
153
154	if (maxcount < list.count)
155		print_refs_link("heads");
156}
157
158void cgit_print_tags(int maxcount)
159{
160	struct reflist list;
161	int i;
162
163	header = 0;
164	list.refs = NULL;
165	list.alloc = list.count = 0;
166	for_each_tag_ref(cgit_refs_cb, &list);
167	if (list.count == 0)
168		return;
169	qsort(list.refs, list.count, sizeof(*list.refs), cmp_tag_age);
170	if (!maxcount)
171		maxcount = list.count;
172	else if (maxcount > list.count)
173		maxcount = list.count;
174	print_tag_header();
175	for(i=0; i<maxcount; i++)
176		print_tag(list.refs[i]);
177
178	if (maxcount < list.count)
179		print_refs_link("tags");
180}
181
182void cgit_print_refs()
183{
184
185	html("<table class='list nowrap'>");
186
187	if (ctx.qry.path && !strncmp(ctx.qry.path, "heads", 5))
188		cgit_print_branches(0);
189	else if (ctx.qry.path && !strncmp(ctx.qry.path, "tags", 4))
190		cgit_print_tags(0);
191	else {
192		cgit_print_branches(0);
193		html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
194		cgit_print_tags(0);
195	}
196	html("</table>");
197}