1 6f4d00ee 2013-09-23 0intro /*
 2 6f4d00ee 2013-09-23 0intro  * Clumsy hack to take snapshots and dumps.
 3 6f4d00ee 2013-09-23 0intro  */
 4 6f4d00ee 2013-09-23 0intro #include <u.h>
 5 6f4d00ee 2013-09-23 0intro #include <libc.h>
 6 6f4d00ee 2013-09-23 0intro 
 7 6f4d00ee 2013-09-23 0intro void
 8 6f4d00ee 2013-09-23 0intro usage(void)
 9 6f4d00ee 2013-09-23 0intro {
10 6f4d00ee 2013-09-23 0intro 	fprint(2, "usage: fossil/dump [-i snap-interval] [-n name] fscons /n/fossil\n");
11 6f4d00ee 2013-09-23 0intro 	exits("usage");
12 6f4d00ee 2013-09-23 0intro }
13 6f4d00ee 2013-09-23 0intro 
14 6f4d00ee 2013-09-23 0intro char*
15 6f4d00ee 2013-09-23 0intro snapnow(void)
16 6f4d00ee 2013-09-23 0intro {
17 6f4d00ee 2013-09-23 0intro 	Tm t;
18 6f4d00ee 2013-09-23 0intro 	static char buf[100];
19 6f4d00ee 2013-09-23 0intro 
20 6f4d00ee 2013-09-23 0intro 	t = *localtime(time(0)-5*60*60);	/* take dumps at 5:00 am */
21 6f4d00ee 2013-09-23 0intro 
22 6f4d00ee 2013-09-23 0intro 	sprint(buf, "archive/%d/%02d%02d", t.year+1900, t.mon+1, t.mday);
23 6f4d00ee 2013-09-23 0intro 	return buf;
24 6f4d00ee 2013-09-23 0intro }
25 6f4d00ee 2013-09-23 0intro 
26 6f4d00ee 2013-09-23 0intro void
27 6f4d00ee 2013-09-23 0intro main(int argc, char **argv)
28 6f4d00ee 2013-09-23 0intro {
29 6f4d00ee 2013-09-23 0intro 	int onlyarchive, cons, s;
30 6f4d00ee 2013-09-23 0intro 	ulong t, i;
31 6f4d00ee 2013-09-23 0intro 	char *name;
32 6f4d00ee 2013-09-23 0intro 
33 6f4d00ee 2013-09-23 0intro 	name = "main";
34 6f4d00ee 2013-09-23 0intro 	s = 0;
35 6f4d00ee 2013-09-23 0intro 	onlyarchive = 0;
36 6f4d00ee 2013-09-23 0intro 	i = 60*60;		/* one hour */
37 6f4d00ee 2013-09-23 0intro 	ARGBEGIN{
38 6f4d00ee 2013-09-23 0intro 	case 'i':
39 6f4d00ee 2013-09-23 0intro 		i = atoi(EARGF(usage()));
40 6f4d00ee 2013-09-23 0intro 		if(i == 0){
41 6f4d00ee 2013-09-23 0intro 			onlyarchive = 1;
42 6f4d00ee 2013-09-23 0intro 			i = 60*60;
43 6f4d00ee 2013-09-23 0intro 		}
44 6f4d00ee 2013-09-23 0intro 		break;
45 6f4d00ee 2013-09-23 0intro 	case 'n':
46 6f4d00ee 2013-09-23 0intro 		name = EARGF(usage());
47 6f4d00ee 2013-09-23 0intro 		break;
48 6f4d00ee 2013-09-23 0intro 	case 's':
49 6f4d00ee 2013-09-23 0intro 		s = atoi(EARGF(usage()));
50 6f4d00ee 2013-09-23 0intro 		break;
51 6f4d00ee 2013-09-23 0intro 	}ARGEND
52 6f4d00ee 2013-09-23 0intro 
53 6f4d00ee 2013-09-23 0intro 	if(argc != 2)
54 6f4d00ee 2013-09-23 0intro 		usage();
55 6f4d00ee 2013-09-23 0intro 
56 6f4d00ee 2013-09-23 0intro 	if((cons = open(argv[0], OWRITE)) < 0)
57 6f4d00ee 2013-09-23 0intro 		sysfatal("open %s: %r", argv[0]);
58 6f4d00ee 2013-09-23 0intro 
59 6f4d00ee 2013-09-23 0intro 	if(chdir(argv[1]) < 0)
60 6f4d00ee 2013-09-23 0intro 		sysfatal("chdir %s: %r", argv[1]);
61 6f4d00ee 2013-09-23 0intro 
62 6f4d00ee 2013-09-23 0intro 	rfork(RFNOTEG);
63 6f4d00ee 2013-09-23 0intro 	switch(fork()){
64 6f4d00ee 2013-09-23 0intro 	case -1:
65 6f4d00ee 2013-09-23 0intro 		sysfatal("fork: %r");
66 6f4d00ee 2013-09-23 0intro 	case 0:
67 6f4d00ee 2013-09-23 0intro 		break;
68 6f4d00ee 2013-09-23 0intro 	default:
69 6f4d00ee 2013-09-23 0intro 		exits(0);
70 6f4d00ee 2013-09-23 0intro 	}
71 6f4d00ee 2013-09-23 0intro 
72 6f4d00ee 2013-09-23 0intro 	/*
73 6f4d00ee 2013-09-23 0intro 	 * pause at boot time to let clock stabilize.
74 6f4d00ee 2013-09-23 0intro 	 */
75 6f4d00ee 2013-09-23 0intro 	if(s)
76 6f4d00ee 2013-09-23 0intro 		sleep(s*1000);
77 6f4d00ee 2013-09-23 0intro 
78 6f4d00ee 2013-09-23 0intro 	for(;;){
79 6f4d00ee 2013-09-23 0intro 		if(access(snapnow(), AEXIST) < 0)
80 6f4d00ee 2013-09-23 0intro 			fprint(cons, "\nfsys %s snap -a\n", name);
81 6f4d00ee 2013-09-23 0intro 		t = time(0);
82 6f4d00ee 2013-09-23 0intro 		sleep((i - t%i)*1000+200);
83 6f4d00ee 2013-09-23 0intro 		if(!onlyarchive)
84 6f4d00ee 2013-09-23 0intro 			fprint(cons, "\nfsys %s snap\n", name);
85 6f4d00ee 2013-09-23 0intro 	}
86 6f4d00ee 2013-09-23 0intro }