Merge branch 'nd/test-tool'
[git/git.git] / t / helper / test-pkt-line.c
1 #include "cache.h"
2 #include "test-tool.h"
3 #include "pkt-line.h"
4
5 static void pack_line(const char *line)
6 {
7 if (!strcmp(line, "0000") || !strcmp(line, "0000\n"))
8 packet_flush(1);
9 else if (!strcmp(line, "0001") || !strcmp(line, "0001\n"))
10 packet_delim(1);
11 else
12 packet_write_fmt(1, "%s", line);
13 }
14
15 static void pack(int argc, const char **argv)
16 {
17 if (argc) { /* read from argv */
18 int i;
19 for (i = 0; i < argc; i++)
20 pack_line(argv[i]);
21 } else { /* read from stdin */
22 char line[LARGE_PACKET_MAX];
23 while (fgets(line, sizeof(line), stdin)) {
24 pack_line(line);
25 }
26 }
27 }
28
29 static void unpack(void)
30 {
31 struct packet_reader reader;
32 packet_reader_init(&reader, 0, NULL, 0,
33 PACKET_READ_GENTLE_ON_EOF |
34 PACKET_READ_CHOMP_NEWLINE);
35
36 while (packet_reader_read(&reader) != PACKET_READ_EOF) {
37 switch (reader.status) {
38 case PACKET_READ_EOF:
39 break;
40 case PACKET_READ_NORMAL:
41 printf("%s\n", reader.line);
42 break;
43 case PACKET_READ_FLUSH:
44 printf("0000\n");
45 break;
46 case PACKET_READ_DELIM:
47 printf("0001\n");
48 break;
49 }
50 }
51 }
52
53 static void unpack_sideband(void)
54 {
55 struct packet_reader reader;
56 packet_reader_init(&reader, 0, NULL, 0,
57 PACKET_READ_GENTLE_ON_EOF |
58 PACKET_READ_CHOMP_NEWLINE);
59
60 while (packet_reader_read(&reader) != PACKET_READ_EOF) {
61 int band;
62 int fd;
63
64 switch (reader.status) {
65 case PACKET_READ_EOF:
66 break;
67 case PACKET_READ_NORMAL:
68 band = reader.line[0] & 0xff;
69 if (band < 1 || band > 2)
70 die("unexpected side band %d", band);
71 fd = band;
72
73 write_or_die(fd, reader.line + 1, reader.pktlen - 1);
74 break;
75 case PACKET_READ_FLUSH:
76 return;
77 case PACKET_READ_DELIM:
78 break;
79 }
80 }
81 }
82
83 int cmd__pkt_line(int argc, const char **argv)
84 {
85 if (argc < 2)
86 die("too few arguments");
87
88 if (!strcmp(argv[1], "pack"))
89 pack(argc - 2, argv + 2);
90 else if (!strcmp(argv[1], "unpack"))
91 unpack();
92 else if (!strcmp(argv[1], "unpack-sideband"))
93 unpack_sideband();
94 else
95 die("invalid argument '%s'", argv[1]);
96
97 return 0;
98 }