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 "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		html_txt(info->author);
 81		html("</td><td colspan='2'>");
 82		cgit_print_age(info->commit->date, -1, NULL);
 83	} else {
 84		html("</td><td></td><td>");
 85		cgit_object_link(ref->object);
 86	}
 87	html("</td></tr>\n");
 88	return 0;
 89}
 90
 91static void print_tag_header()
 92{
 93	html("<tr class='nohover'><th class='left'>Tag</th>"
 94	     "<th class='left'>Download</th>"
 95	     "<th class='left'>Author</th>"
 96	     "<th class='left' colspan='2'>Age</th></tr>\n");
 97}
 98
 99static void print_tag_downloads(const struct cgit_repo *repo, const char *ref)
100{
101	const struct cgit_snapshot_format* f;
102	struct strbuf filename = STRBUF_INIT;
103	const char *basename;
104	int free_ref = 0;
105
106	if (!ref || strlen(ref) < 2)
107		return;
108
109	basename = cgit_repobasename(repo->url);
110	if (prefixcmp(ref, basename) != 0) {
111		if ((ref[0] == 'v' || ref[0] == 'V') && isdigit(ref[1]))
112			ref++;
113		if (isdigit(ref[0])) {
114			ref = fmtalloc("%s-%s", basename, ref);
115			free_ref = 1;
116		}
117	}
118
119	for (f = cgit_snapshot_formats; f->suffix; f++) {
120		if (!(repo->snapshots & f->bit))
121			continue;
122		strbuf_reset(&filename);
123		strbuf_addf(&filename, "%s%s", ref, f->suffix);
124		cgit_snapshot_link(filename.buf, NULL, NULL, NULL, NULL, filename.buf);
125		html("&nbsp;&nbsp;");
126	}
127
128	if (free_ref)
129		free((char *)ref);
130	strbuf_release(&filename);
131}
132
133static int print_tag(struct refinfo *ref)
134{
135	struct tag *tag = NULL;
136	struct taginfo *info = NULL;
137	char *name = (char *)ref->refname;
138	struct object *obj = ref->object;
139
140	if (obj->type == OBJ_TAG) {
141		tag = (struct tag *)obj;
142		obj = tag->tagged;
143		info = ref->tag;
144		if (!tag || !info)
145			return 1;
146	}
147
148	html("<tr><td>");
149	cgit_tag_link(name, NULL, NULL, ctx.qry.head, name);
150	html("</td><td>");
151	if (ctx.repo->snapshots && (obj->type == OBJ_COMMIT))
152		print_tag_downloads(ctx.repo, name);
153	else
154		cgit_object_link(obj);
155	html("</td><td>");
156	if (info) {
157		if (info->tagger)
158			html(info->tagger);
159	} else if (ref->object->type == OBJ_COMMIT) {
160		html(ref->commit->author);
161	}
162	html("</td><td colspan='2'>");
163	if (info) {
164		if (info->tagger_date > 0)
165			cgit_print_age(info->tagger_date, -1, NULL);
166	} else if (ref->object->type == OBJ_COMMIT) {
167		cgit_print_age(ref->commit->commit->date, -1, NULL);
168	}
169	html("</td></tr>\n");
170
171	return 0;
172}
173
174static void print_refs_link(char *path)
175{
176	html("<tr class='nohover'><td colspan='5'>");
177	cgit_refs_link("[...]", NULL, NULL, ctx.qry.head, NULL, path);
178	html("</td></tr>");
179}
180
181void cgit_print_branches(int maxcount)
182{
183	struct reflist list;
184	int i;
185
186	html("<tr class='nohover'><th class='left'>Branch</th>"
187	     "<th class='left'>Commit message</th>"
188	     "<th class='left'>Author</th>"
189	     "<th class='left' colspan='2'>Age</th></tr>\n");
190
191	list.refs = NULL;
192	list.alloc = list.count = 0;
193	for_each_branch_ref(cgit_refs_cb, &list);
194	if (ctx.repo->enable_remote_branches)
195		for_each_remote_ref(cgit_refs_cb, &list);
196
197	if (maxcount == 0 || maxcount > list.count)
198		maxcount = list.count;
199
200	qsort(list.refs, list.count, sizeof(*list.refs), cmp_branch_age);
201	if (ctx.repo->branch_sort == 0)
202		qsort(list.refs, maxcount, sizeof(*list.refs), cmp_ref_name);
203
204	for (i = 0; i < maxcount; i++)
205		print_branch(list.refs[i]);
206
207	if (maxcount < list.count)
208		print_refs_link("heads");
209
210	cgit_free_reflist_inner(&list);
211}
212
213void cgit_print_tags(int maxcount)
214{
215	struct reflist list;
216	int i;
217
218	list.refs = NULL;
219	list.alloc = list.count = 0;
220	for_each_tag_ref(cgit_refs_cb, &list);
221	if (list.count == 0)
222		return;
223	qsort(list.refs, list.count, sizeof(*list.refs), cmp_tag_age);
224	if (!maxcount)
225		maxcount = list.count;
226	else if (maxcount > list.count)
227		maxcount = list.count;
228	print_tag_header();
229	for (i = 0; i < maxcount; i++)
230		print_tag(list.refs[i]);
231
232	if (maxcount < list.count)
233		print_refs_link("tags");
234
235	cgit_free_reflist_inner(&list);
236}
237
238void cgit_print_refs()
239{
240
241	html("<table class='list nowrap'>");
242
243	if (ctx.qry.path && !strncmp(ctx.qry.path, "heads", 5))
244		cgit_print_branches(0);
245	else if (ctx.qry.path && !strncmp(ctx.qry.path, "tags", 4))
246		cgit_print_tags(0);
247	else {
248		cgit_print_branches(0);
249		html("<tr class='nohover'><td colspan='5'>&nbsp;</td></tr>");
250		cgit_print_tags(0);
251	}
252	html("</table>");
253}