1 /*
2 * Clumsy hack to take snapshots and dumps.
3 */
4 #include <u.h>
5 #include <libc.h>
6
7 void
usage(void)8 usage(void)
9 {
10 fprint(2, "usage: fossil/dump [-i snap-interval] [-n name] fscons /n/fossil\n");
11 exits("usage");
12 }
13
14 char*
snapnow(void)15 snapnow(void)
16 {
17 Tm t;
18 static char buf[100];
19
20 t = *localtime(time(0)-5*60*60); /* take dumps at 5:00 am */
21
22 sprint(buf, "archive/%d/%02d%02d", t.year+1900, t.mon+1, t.mday);
23 return buf;
24 }
25
26 void
main(int argc,char ** argv)27 main(int argc, char **argv)
28 {
29 int onlyarchive, cons, s;
30 ulong t, i;
31 char *name;
32
33 name = "main";
34 s = 0;
35 onlyarchive = 0;
36 i = 60*60; /* one hour */
37 ARGBEGIN{
38 case 'i':
39 i = atoi(EARGF(usage()));
40 if(i == 0){
41 onlyarchive = 1;
42 i = 60*60;
43 }
44 break;
45 case 'n':
46 name = EARGF(usage());
47 break;
48 case 's':
49 s = atoi(EARGF(usage()));
50 break;
51 }ARGEND
52
53 if(argc != 2)
54 usage();
55
56 if((cons = open(argv[0], OWRITE)) < 0)
57 sysfatal("open %s: %r", argv[0]);
58
59 if(chdir(argv[1]) < 0)
60 sysfatal("chdir %s: %r", argv[1]);
61
62 rfork(RFNOTEG);
63 switch(fork()){
64 case -1:
65 sysfatal("fork: %r");
66 case 0:
67 break;
68 default:
69 exits(0);
70 }
71
72 /*
73 * pause at boot time to let clock stabilize.
74 */
75 if(s)
76 sleep(s*1000);
77
78 for(;;){
79 if(access(snapnow(), AEXIST) < 0)
80 fprint(cons, "\nfsys %s snap -a\n", name);
81 t = time(0);
82 sleep((i - t%i)*1000+200);
83 if(!onlyarchive)
84 fprint(cons, "\nfsys %s snap\n", name);
85 }
86 }
87