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