Merge branch 'nd/config-split'
[git/git.git] / t / helper / test-pkt-line.c
1 #include "cache.h"
2 #include "pkt-line.h"
3
4 static void pack_line(const char *line)
5 {
6 if (!strcmp(line, "0000") || !strcmp(line, "0000\n"))
7 packet_flush(1);
8 else if (!strcmp(line, "0001") || !strcmp(line, "0001\n"))
9 packet_delim(1);
10 else
11 packet_write_fmt(1, "%s", line);
12 }
13
14 static void pack(int argc, const char **argv)
15 {
16 if (argc) { /* read from argv */
17 int i;
18 for (i = 0; i < argc; i++)
19 pack_line(argv[i]);
20 } else { /* read from stdin */
21 char line[LARGE_PACKET_MAX];
22 while (fgets(line, sizeof(line), stdin)) {
23 pack_line(line);
24 }
25 }
26 }
27
28 static void unpack(void)
29 {
30 struct packet_reader reader;
31 packet_reader_init(&reader, 0, NULL, 0,
32 PACKET_READ_GENTLE_ON_EOF |
33 PACKET_READ_CHOMP_NEWLINE);
34
35 while (packet_reader_read(&reader) != PACKET_READ_EOF) {
36 switch (reader.status) {
37 case PACKET_READ_EOF:
38 break;
39 case PACKET_READ_NORMAL:
40 printf("%s\n", reader.line);
41 break;
42 case PACKET_READ_FLUSH:
43 printf("0000\n");
44 break;
45 case PACKET_READ_DELIM:
46 printf("0001\n");
47 break;
48 }
49 }
50 }
51
52 static void unpack_sideband(void)
53 {
54 struct packet_reader reader;
55 packet_reader_init(&reader, 0, NULL, 0,
56 PACKET_READ_GENTLE_ON_EOF |
57 PACKET_READ_CHOMP_NEWLINE);
58
59 while (packet_reader_read(&reader) != PACKET_READ_EOF) {
60 int band;
61 int fd;
62
63 switch (reader.status) {
64 case PACKET_READ_EOF:
65 break;
66 case PACKET_READ_NORMAL:
67 band = reader.line[0] & 0xff;
68 if (band < 1 || band > 2)
69 die("unexpected side band %d", band);
70 fd = band;
71
72 write_or_die(fd, reader.line + 1, reader.pktlen - 1);
73 break;
74 case PACKET_READ_FLUSH:
75 return;
76 case PACKET_READ_DELIM:
77 break;
78 }
79 }
80 }
81
82 int cmd_main(int argc, const char **argv)
83 {
84 if (argc < 2)
85 die("too few arguments");
86
87 if (!strcmp(argv[1], "pack"))
88 pack(argc - 2, argv + 2);
89 else if (!strcmp(argv[1], "unpack"))
90 unpack();
91 else if (!strcmp(argv[1], "unpack-sideband"))
92 unpack_sideband();
93 else
94 die("invalid argument '%s'", argv[1]);
95
96 return 0;
97 }