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 int cmp_age(int age1, int age2)
 15{
 16	if (age1 != 0 && age2 != 0)
 17		return age2 - age1;
 18
 19	if (age1 == 0 && age2 == 0)
 20		return 0;
 21
 22	if (age1 == 0)
 23		return +1;
 24
 25	return -1;
 26}
 27
 28static int cmp_ref_name(const void *a, const void *b)
 29{
 30	struct refinfo *r1 = *(struct refinfo **)a;
 31	struct refinfo *r2 = *(struct refinfo **)b;
 32
 33	return strcmp(r1->refname, r2->refname);
 34}
 35
 36static int cmp_branch_age(const void *a, const void *b)
 37{
 38	struct refinfo *r1 = *(struct refinfo **)a;
 39	struct refinfo *r2 = *(struct refinfo **)b;
 40
 41	return cmp_age(r1->commit->committer_date, r2->commit->committer_date);
 42}
 43
 44static int get_ref_age(struct refinfo *ref)
 45{
 46	if (!ref->object)
 47		return 0;
 48	switch (ref->object->type) {
 49	case OBJ_TAG:
 50		return ref->tag ? ref->tag->tagger_date : 0;
 51	case OBJ_COMMIT:
 52		return ref->commit ? ref->commit->committer_date : 0;
 53	}
 54	return 0;
 55}
 56
 57static int cmp_tag_age(const void *a, const void *b)
 58{
 59	struct refinfo *r1 = *(struct refinfo **)a;
 60	struct refinfo *r2 = *(struct refinfo **)b;
 61
 62	return cmp_age(get_ref_age(r1), get_ref_age(r2));
 63}
 64
 65static int print_branch(struct refinfo *ref)
 66{
 67	struct commitinfo *info = ref->commit;
 68	char *name = (char *)ref->refname;
 69
 70	if (!info)
 71		return 1;
 72	html("<tr><td>");
 73	cgit_log_link(name, NULL, NULL, name, NULL, NULL, 0, NULL, NULL,
 74		      ctx.qry.showmsg);
 75	html("</td><td>");
 76
 77	if (ref->object->type == OBJ_COMMIT) {
 78		cgit_commit_link(info->subject, NULL, NULL, name, NULL, NULL, 0);
 79		html("</td><td>");
 80		cgit_open_filter(ctx.repo->email_filter, info->author_email, "refs");
 81		html_txt(info->author);
 82		cgit_close_filter(ctx.repo->email_filter);
 83		html("</td><td colspan='2'>");
 84		cgit_print_age(info->commit->date, -1, NULL);
 85	} else {
 86		html("</td><td></td><td>");
 87		cgit_object_link(ref->object);
 88	}
 89	html("</td></tr>\n");
 90	return 0;
 91}
 92
 93static void print_tag_header()
 94{
 95	html("<tr class='nohover'><th class='left'>Tag</th>"
 96	     "<th class='left'>Download</th>"
 97	     "<th class='left'>Author</th>"
 98	     "<th class='left' colspan='2'>Age</th></tr>\n");
 99}
100
101static void print_tag_downloads(const struct cgit_repo *repo, const char *ref)
102{
103	const struct cgit_snapshot_format* f;
104	struct strbuf filename = STRBUF_INIT;
105	const char *basename;
106	int free_ref = 0;
107
108	if (!ref || strlen(ref) < 2)
109		return;
110
111	basename = cgit_repobasename(repo->url);
112	if (prefixcmp(ref, basename) != 0) {
113		if ((ref[0] == 'v' || ref[0] == 'V') && isdigit(ref[1]))
114			ref++;
115		if (isdigit(ref[0])) {
116			ref = fmtalloc("%s-%s", basename, ref);
117			free_ref = 1;
118		}
119	}
120
121	for (f = cgit_snapshot_formats; f->suffix; f++) {
122		if (!(repo->snapshots & f->bit))
123			continue;
124		strbuf_reset(&filename);
125		strbuf_addf(&filename, "%s%s", ref, f->suffix);
126		cgit_snapshot_link(filename.buf, NULL, NULL, NULL, NULL, filename.buf);
127		html("&nbsp;&nbsp;");
128	}
129
130	if (free_ref)
131		free((char *)ref);
132	strbuf_release(&filename);
133}
134
135static int print_tag(struct refinfo *ref)
136{
137	struct tag *tag = NULL;
138	struct taginfo *info = NULL;
139	char *name = (char *)ref->refname;
140	struct object *obj = ref->object;
141
142	if (obj->type == OBJ_TAG) {
143		tag = (struct tag *)obj;
144		obj = tag->tagged;
145		info = ref->tag;
146		if (!tag || !info)
147			return 1;
148	}
149
150	html("<tr><td>");
151	cgit_tag_link(name, NULL, NULL, ctx.qry.head, name);
152	html("</td><td>");
153	if (ctx.repo->snapshots && (obj->type == OBJ_COMMIT))
154		print_tag_downloads(ctx.repo, name);
155	else
156		cgit_object_link(obj);
157	html("</td><td>");
158	if (info) {
159		if (info->tagger) {
160			cgit_open_filter(ctx.repo->email_filter, info->tagger_email, "refs");
161			html_txt(info->tagger);
162			cgit_close_filter(ctx.repo->email_filter);
163		}
164	} else if (ref->object->type == OBJ_COMMIT) {
165		cgit_open_filter(ctx.repo->email_filter, ref->commit->author_email, "refs");
166		html_txt(ref->commit->author);
167		cgit_close_filter(ctx.repo->email_filter);
168	}
169	html("</td><td colspan='2'>");
170	if (info) {
171		if (info->tagger_date > 0)
172			cgit_print_age(info->tagger_date, -1, NULL);
173	} else if (ref->object->type == OBJ_COMMIT) {
174		cgit_print_age(ref->commit->commit->date, -1, NULL);
175	}
176	html("</td></tr>\n");
177
178	return 0;
179}
180
181static void print_refs_link(char *path)
182{
183	html("<tr class='nohover'><td colspan='5'>");
184	cgit_refs_link("[...]", NULL, NULL, ctx.qry.head, NULL, path);
185	html("</td></tr>");
186}
187
188void cgit_print_branches(int maxcount)
189{
190	struct reflist list;
191	int i;
192
193	html("<tr class='nohover'><th class='left'>Branch</th>"
194	     "<th class='left'>Commit message</th>"
195	     "<th class='left'>Author</th>"
196	     "<th class='left' colspan='2'>Age</th></tr>\n");
197
198	list.refs = NULL;
199	list.alloc = list.count = 0;
200	for_each_branch_ref(cgit_refs_cb, &list);
201	if (ctx.repo->enable_remote_branches)
202		for_each_remote_ref(cgit_refs_cb, &list);
203
204	if (maxcount == 0 || maxcount > list.count)
205		maxcount = list.count;
206
207	qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
208	if (ctx.repo->branch_sort == 0)
209		qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
210
211	for (i = 0; i < maxcount; i++)
212		print_branch(list.refs[i]);
213
214	if (maxcount < list.count)
215		print_refs_link("heads");
216
217	cgit_free_reflist_inner(&list);
218}
219
220void cgit_print_tags(int maxcount)
221{
222	struct reflist list;
223	int i;
224
225	list.refs = NULL;
226	list.alloc = list.count = 0;
227	for_each_tag_ref(cgit_refs_cb, &list);
228	if (list.count == 0)
229		return;
230	qsort(list.refs, list.count, sizeof(*list.refs), cmp_tag_age);
231	if (!maxcount)
232		maxcount = list.count;
233	else if (maxcount > list.count)
234		maxcount = list.count;
235	print_tag_header();
236	for (i = 0; i < maxcount; i++)
237		print_tag(list.refs[i]);
238
239	if (maxcount < list.count)
240		print_refs_link("tags");
241
242	cgit_free_reflist_inner(&list);
243}
244
245void cgit_print_refs()
246{
247
248	html("<table class='list nowrap'>");
249
250	if (ctx.qry.path && !prefixcmp(ctx.qry.path, "heads"))
251		cgit_print_branches(0);
252	else if (ctx.qry.path && !prefixcmp(ctx.qry.path, "tags"))
253		cgit_print_tags(0);
254	else {
255		cgit_print_branches(0);
256		html("<tr class='nohover'><td colspan='5'>&nbsp;</td></tr>");
257		cgit_print_tags(0);
258	}
259	html("</table>");
260}