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 get_ref_age(struct refinfo *ref)
 46{
 47	if (!ref->object)
 48		return 0;
 49	switch (ref->object->type) {
 50	case OBJ_TAG:
 51		return ref->tag ? ref->tag->tagger_date : 0;
 52	case OBJ_COMMIT:
 53		return ref->commit ? ref->commit->committer_date : 0;
 54	}
 55	return 0;
 56}
 57
 58static int cmp_tag_age(const void *a, const void *b)
 59{
 60	struct refinfo *r1 = *(struct refinfo **)a;
 61	struct refinfo *r2 = *(struct refinfo **)b;
 62
 63	return cmp_age(get_ref_age(r1), get_ref_age(r2));
 64}
 65
 66static int print_branch(struct refinfo *ref)
 67{
 68	struct commitinfo *info = ref->commit;
 69	char *name = (char *)ref->refname;
 70
 71	if (!info)
 72		return 1;
 73	html("<tr><td>");
 74	cgit_log_link(name, NULL, NULL, name, NULL, NULL, 0, NULL, NULL,
 75		      ctx.qry.showmsg);
 76	html("</td><td>");
 77
 78	if (ref->object->type == OBJ_COMMIT) {
 79		cgit_commit_link(info->subject, NULL, NULL, name, NULL, NULL, 0);
 80		html("</td><td>");
 81		html_txt(info->author);
 82		html("</td><td colspan='2'>");
 83		cgit_print_age(info->commit->date, -1, NULL);
 84	} else {
 85		html("</td><td></td><td>");
 86		cgit_object_link(ref->object);
 87	}
 88	html("</td></tr>\n");
 89	return 0;
 90}
 91
 92static void print_tag_header()
 93{
 94	html("<tr class='nohover'><th class='left'>Tag</th>"
 95	     "<th class='left'>Download</th>"
 96	     "<th class='left'>Author</th>"
 97	     "<th class='left' colspan='2'>Age</th></tr>\n");
 98	header = 1;
 99}
100
101static void print_tag_downloads(const struct cgit_repo *repo, const char *ref)
102{
103	const struct cgit_snapshot_format* f;
104    	char *filename;
105	const char *basename;
106
107	if (!ref || strlen(ref) < 2)
108		return;
109
110	basename = cgit_repobasename(repo->url);
111	if (prefixcmp(ref, basename) != 0) {
112		if ((ref[0] == 'v' || ref[0] == 'V') && isdigit(ref[1]))
113			ref++;
114		if (isdigit(ref[0]))
115			ref = xstrdup(fmt("%s-%s", basename, ref));
116	}
117
118	for (f = cgit_snapshot_formats; f->suffix; f++) {
119		if (!(repo->snapshots & f->bit))
120			continue;
121		filename = fmt("%s%s", ref, f->suffix);
122		cgit_snapshot_link(filename, NULL, NULL, NULL, NULL, filename);
123		html("&nbsp;&nbsp;");
124	}
125}
126static int print_tag(struct refinfo *ref)
127{
128	struct tag *tag;
129	struct taginfo *info;
130	char *name = (char *)ref->refname;
131
132	if (ref->object->type == OBJ_TAG) {
133		tag = (struct tag *)ref->object;
134		info = ref->tag;
135		if (!tag || !info)
136			return 1;
137		html("<tr><td>");
138		cgit_tag_link(name, NULL, NULL, ctx.qry.head, name);
139		html("</td><td>");
140		if (ctx.repo->snapshots && (tag->tagged->type == OBJ_COMMIT))
141			print_tag_downloads(ctx.repo, name);
142		else
143			cgit_object_link(tag->tagged);
144		html("</td><td>");
145		if (info->tagger)
146			html(info->tagger);
147		html("</td><td colspan='2'>");
148		if (info->tagger_date > 0)
149			cgit_print_age(info->tagger_date, -1, NULL);
150		html("</td></tr>\n");
151	} else {
152		if (!header)
153			print_tag_header();
154		html("<tr><td>");
155		cgit_tag_link(name, NULL, NULL, ctx.qry.head, name);
156		html("</td><td>");
157		if (ctx.repo->snapshots && (ref->object->type == OBJ_COMMIT))
158			print_tag_downloads(ctx.repo, name);
159		else
160			cgit_object_link(ref->object);
161		html("</td><td>");
162		if (ref->object->type == OBJ_COMMIT)
163			html(ref->commit->author);
164		html("</td><td colspan='2'>");
165		if (ref->object->type == OBJ_COMMIT)
166			cgit_print_age(ref->commit->commit->date, -1, NULL);
167		html("</td></tr>\n");
168	}
169	return 0;
170}
171
172static void print_refs_link(char *path)
173{
174	html("<tr class='nohover'><td colspan='4'>");
175	cgit_refs_link("[...]", NULL, NULL, ctx.qry.head, NULL, path);
176	html("</td></tr>");
177}
178
179void cgit_print_branches(int maxcount)
180{
181	struct reflist list;
182	int i;
183
184	html("<tr class='nohover'><th class='left'>Branch</th>"
185	     "<th class='left'>Commit message</th>"
186	     "<th class='left'>Author</th>"
187	     "<th class='left' colspan='2'>Age</th></tr>\n");
188
189	list.refs = NULL;
190	list.alloc = list.count = 0;
191	for_each_branch_ref(cgit_refs_cb, &list);
192	if (ctx.repo->enable_remote_branches)
193		for_each_remote_ref(cgit_refs_cb, &list);
194
195	if (maxcount == 0 || maxcount > list.count)
196		maxcount = list.count;
197
198	if (maxcount < list.count) {
199		qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
200		qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
201	}
202
203	for (i = 0; i < maxcount; i++)
204		print_branch(list.refs[i]);
205
206	if (maxcount < list.count)
207		print_refs_link("heads");
208}
209
210void cgit_print_tags(int maxcount)
211{
212	struct reflist list;
213	int i;
214
215	header = 0;
216	list.refs = NULL;
217	list.alloc = list.count = 0;
218	for_each_tag_ref(cgit_refs_cb, &list);
219	if (list.count == 0)
220		return;
221	qsort(list.refs, list.count, sizeof(*list.refs), cmp_tag_age);
222	if (!maxcount)
223		maxcount = list.count;
224	else if (maxcount > list.count)
225		maxcount = list.count;
226	print_tag_header();
227	for (i = 0; i < maxcount; i++)
228		print_tag(list.refs[i]);
229
230	if (maxcount < list.count)
231		print_refs_link("tags");
232}
233
234void cgit_print_refs()
235{
236
237	html("<table class='list nowrap'>");
238
239	if (ctx.qry.path && !strncmp(ctx.qry.path, "heads", 5))
240		cgit_print_branches(0);
241	else if (ctx.qry.path && !strncmp(ctx.qry.path, "tags", 4))
242		cgit_print_tags(0);
243	else {
244		cgit_print_branches(0);
245		html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
246		cgit_print_tags(0);
247	}
248	html("</table>");
249}