1/* ui-refs.c: browse symbolic refs
  2 *
  3 * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
  4 *
  5 * Licensed under GNU General Public License v2
  6 *   (see COPYING for full license text)
  7 */
  8
  9#include "cgit.h"
 10#include "ui-refs.h"
 11#include "html.h"
 12#include "ui-shared.h"
 13
 14static inline int cmp_age(int age1, int age2)
 15{
 16	/* age1 and age2 are assumed to be non-negative */
 17	return age2 - age1;
 18}
 19
 20static int cmp_ref_name(const void *a, const void *b)
 21{
 22	struct refinfo *r1 = *(struct refinfo **)a;
 23	struct refinfo *r2 = *(struct refinfo **)b;
 24
 25	return strcmp(r1->refname, r2->refname);
 26}
 27
 28static int cmp_branch_age(const void *a, const void *b)
 29{
 30	struct refinfo *r1 = *(struct refinfo **)a;
 31	struct refinfo *r2 = *(struct refinfo **)b;
 32
 33	return cmp_age(r1->commit->committer_date, r2->commit->committer_date);
 34}
 35
 36static int get_ref_age(struct refinfo *ref)
 37{
 38	if (!ref->object)
 39		return 0;
 40	switch (ref->object->type) {
 41	case OBJ_TAG:
 42		return ref->tag ? ref->tag->tagger_date : 0;
 43	case OBJ_COMMIT:
 44		return ref->commit ? ref->commit->committer_date : 0;
 45	}
 46	return 0;
 47}
 48
 49static int cmp_tag_age(const void *a, const void *b)
 50{
 51	struct refinfo *r1 = *(struct refinfo **)a;
 52	struct refinfo *r2 = *(struct refinfo **)b;
 53
 54	return cmp_age(get_ref_age(r1), get_ref_age(r2));
 55}
 56
 57static int print_branch(struct refinfo *ref)
 58{
 59	struct commitinfo *info = ref->commit;
 60	char *name = (char *)ref->refname;
 61
 62	if (!info)
 63		return 1;
 64	html("<tr><td>");
 65	cgit_log_link(name, NULL, NULL, name, NULL, NULL, 0, NULL, NULL,
 66		      ctx.qry.showmsg, 0);
 67	html("</td><td>");
 68
 69	if (ref->object->type == OBJ_COMMIT) {
 70		cgit_commit_link(info->subject, NULL, NULL, name, NULL, NULL);
 71		html("</td><td>");
 72		cgit_open_filter(ctx.repo->email_filter, info->author_email, "refs");
 73		html_txt(info->author);
 74		cgit_close_filter(ctx.repo->email_filter);
 75		html("</td><td colspan='2'>");
 76		cgit_print_age(info->committer_date, info->committer_tz, -1);
 77	} else {
 78		html("</td><td></td><td>");
 79		cgit_object_link(ref->object);
 80	}
 81	html("</td></tr>\n");
 82	return 0;
 83}
 84
 85static void print_tag_header(void)
 86{
 87	html("<tr class='nohover'><th class='left'>Tag</th>"
 88	     "<th class='left'>Download</th>"
 89	     "<th class='left'>Author</th>"
 90	     "<th class='left' colspan='2'>Age</th></tr>\n");
 91}
 92
 93static int print_tag(struct refinfo *ref)
 94{
 95	struct tag *tag = NULL;
 96	struct taginfo *info = NULL;
 97	char *name = (char *)ref->refname;
 98	struct object *obj = ref->object;
 99
100	if (obj->type == OBJ_TAG) {
101		tag = (struct tag *)obj;
102		obj = tag->tagged;
103		info = ref->tag;
104		if (!info)
105			return 1;
106	}
107
108	html("<tr><td>");
109	cgit_tag_link(name, NULL, NULL, name);
110	html("</td><td>");
111	if (ctx.repo->snapshots && (obj->type == OBJ_COMMIT))
112		cgit_print_snapshot_links(ctx.repo, name, "&nbsp;&nbsp;");
113	else
114		cgit_object_link(obj);
115	html("</td><td>");
116	if (info) {
117		if (info->tagger) {
118			cgit_open_filter(ctx.repo->email_filter, info->tagger_email, "refs");
119			html_txt(info->tagger);
120			cgit_close_filter(ctx.repo->email_filter);
121		}
122	} else if (ref->object->type == OBJ_COMMIT) {
123		cgit_open_filter(ctx.repo->email_filter, ref->commit->author_email, "refs");
124		html_txt(ref->commit->author);
125		cgit_close_filter(ctx.repo->email_filter);
126	}
127	html("</td><td colspan='2'>");
128	if (info) {
129		if (info->tagger_date > 0)
130			cgit_print_age(info->tagger_date, info->tagger_tz, -1);
131	} else if (ref->object->type == OBJ_COMMIT) {
132		cgit_print_age(ref->commit->commit->date, 0, -1);
133	}
134	html("</td></tr>\n");
135
136	return 0;
137}
138
139static void print_refs_link(char *path)
140{
141	html("<tr class='nohover'><td colspan='5'>");
142	cgit_refs_link("[...]", NULL, NULL, ctx.qry.head, NULL, path);
143	html("</td></tr>");
144}
145
146void cgit_print_branches(int maxcount)
147{
148	struct reflist list;
149	int i;
150
151	html("<tr class='nohover'><th class='left'>Branch</th>"
152	     "<th class='left'>Commit message</th>"
153	     "<th class='left'>Author</th>"
154	     "<th class='left' colspan='2'>Age</th></tr>\n");
155
156	list.refs = NULL;
157	list.alloc = list.count = 0;
158	for_each_branch_ref(cgit_refs_cb, &list);
159	if (ctx.repo->enable_remote_branches)
160		for_each_remote_ref(cgit_refs_cb, &list);
161
162	if (maxcount == 0 || maxcount > list.count)
163		maxcount = list.count;
164
165	qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
166	if (ctx.repo->branch_sort == 0)
167		qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
168
169	for (i = 0; i < maxcount; i++)
170		print_branch(list.refs[i]);
171
172	if (maxcount < list.count)
173		print_refs_link("heads");
174
175	cgit_free_reflist_inner(&list);
176}
177
178void cgit_print_tags(int maxcount)
179{
180	struct reflist list;
181	int i;
182
183	list.refs = NULL;
184	list.alloc = list.count = 0;
185	for_each_tag_ref(cgit_refs_cb, &list);
186	if (list.count == 0)
187		return;
188	qsort(list.refs, list.count, sizeof(*list.refs), cmp_tag_age);
189	if (!maxcount)
190		maxcount = list.count;
191	else if (maxcount > list.count)
192		maxcount = list.count;
193	print_tag_header();
194	for (i = 0; i < maxcount; i++)
195		print_tag(list.refs[i]);
196
197	if (maxcount < list.count)
198		print_refs_link("tags");
199
200	cgit_free_reflist_inner(&list);
201}
202
203void cgit_print_refs(void)
204{
205	cgit_print_layout_start();
206	html("<table class='list nowrap'>");
207
208	if (ctx.qry.path && starts_with(ctx.qry.path, "heads"))
209		cgit_print_branches(0);
210	else if (ctx.qry.path && starts_with(ctx.qry.path, "tags"))
211		cgit_print_tags(0);
212	else {
213		cgit_print_branches(0);
214		html("<tr class='nohover'><td colspan='5'>&nbsp;</td></tr>");
215		cgit_print_tags(0);
216	}
217	html("</table>");
218	cgit_print_layout_end();
219}