1/* ui-snapshot.c: generate snapshot of a commit
 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
11static const struct snapshot_archive_t {
12    	const char *suffix;
13	const char *mimetype;
14	write_archive_fn_t write_func;
15}	snapshot_archives[] = {
16	{ ".zip", "application/x-zip", write_zip_archive },
17	{ ".tar.gz", "application/x-gzip", write_tar_archive }
18};
19
20void cgit_print_snapshot(struct cacheitem *item, const char *hex, 
21			 const char *prefix, const char *filename)
22{
23	int fnl = strlen(filename);
24	int f;
25    	for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
26		const struct snapshot_archive_t* sat = &snapshot_archives[f];
27		int sl = strlen(sat->suffix);
28		if(fnl<sl || strcmp(&filename[fnl-sl],sat->suffix))
29			continue;
30
31		struct archiver_args args;
32		struct commit *commit;
33		unsigned char sha1[20];
34
35		if(get_sha1(hex, sha1)) {
36			cgit_print_error(fmt("Bad object id: %s", hex));
37			return;
38		}
39		commit = lookup_commit_reference(sha1);
40
41		if(!commit) {
42			cgit_print_error(fmt("Not a commit reference: %s", hex));
43			return;;
44		}
45
46		memset(&args,0,sizeof(args));
47		args.base = fmt("%s/", prefix);
48		args.tree = commit->tree;
49
50		cgit_print_snapshot_start(sat->mimetype, filename, item);
51		(*sat->write_func)(&args);
52		return;
53	}
54	cgit_print_error(fmt("Unsupported snapshot format: %s", filename));
55}
56
57void cgit_print_snapshot_links(const char *repo,const char *hex)
58{
59    	char *filename;
60	int f;
61    	for(f=0;f<(sizeof(snapshot_archives)/sizeof(*snapshot_archives));++f) {
62		const struct snapshot_archive_t* sat = &snapshot_archives[f];
63		filename = fmt("%s-%s%s",repo,hex,sat->suffix);
64		htmlf("<a href='%s'>%s</a><br/>",
65			cgit_pageurl(repo,"snapshot",
66			    fmt("id=%s&amp;name=%s",hex,filename)), filename);
67	}
68}