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 *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		cgit_tag_link(name, NULL, NULL, ctx.qry.head, name);
100		html("</td><td>");
101		cgit_object_link(tag->tagged);
102		html("</td><td>");
103		if (info->tagger)
104			html(info->tagger);
105		html("</td><td colspan='2'>");
106		if (info->tagger_date > 0)
107			cgit_print_age(info->tagger_date, -1, NULL);
108		html("</td></tr>\n");
109	} else {
110		if (!header)
111			print_tag_header();
112		html("<tr><td>");
113		html_txt(name);
114		html("</td><td>");
115		cgit_object_link(ref->object);
116		html("</td></tr>\n");
117	}
118	return 0;
119}
120
121static void print_refs_link(char *path)
122{
123	html("<tr class='nohover'><td colspan='4'>");
124	cgit_refs_link("[...]", NULL, NULL, ctx.qry.head, NULL, path);
125	html("</td></tr>");
126}
127
128void cgit_print_branches(int maxcount)
129{
130	struct reflist list;
131	int i;
132
133	html("<tr class='nohover'><th class='left'>Branch</th>"
134	     "<th class='left'>Commit message</th>"
135	     "<th class='left'>Author</th>"
136	     "<th class='left' colspan='2'>Age</th></tr>\n");
137
138	list.refs = NULL;
139	list.alloc = list.count = 0;
140	for_each_branch_ref(cgit_refs_cb, &list);
141
142	if (maxcount == 0 || maxcount > list.count)
143		maxcount = list.count;
144
145	if (maxcount < list.count) {
146		qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
147		qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
148	}
149
150	for(i=0; i<maxcount; i++)
151		print_branch(list.refs[i]);
152
153	if (maxcount < list.count)
154		print_refs_link("heads");
155}
156
157void cgit_print_tags(int maxcount)
158{
159	struct reflist list;
160	int i;
161
162	header = 0;
163	list.refs = NULL;
164	list.alloc = list.count = 0;
165	for_each_tag_ref(cgit_refs_cb, &list);
166	if (list.count == 0)
167		return;
168	qsort(list.refs, list.count, sizeof(*list.refs), cmp_tag_age);
169	if (!maxcount)
170		maxcount = list.count;
171	else if (maxcount > list.count)
172		maxcount = list.count;
173	print_tag_header();
174	for(i=0; i<maxcount; i++)
175		print_tag(list.refs[i]);
176
177	if (maxcount < list.count)
178		print_refs_link("tags");
179}
180
181void cgit_print_refs()
182{
183
184	html("<table class='list nowrap'>");
185
186	if (ctx.qry.path && !strncmp(ctx.qry.path, "heads", 5))
187		cgit_print_branches(0);
188	else if (ctx.qry.path && !strncmp(ctx.qry.path, "tags", 4))
189		cgit_print_tags(0);
190	else {
191		cgit_print_branches(0);
192		html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
193		cgit_print_tags(0);
194	}
195	html("</table>");
196}