1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
#include "test-tool.h"
#include "cache.h"
#include "oidmap.h"
#include "strbuf.h"
/* key is an oid and value is a name (could be a refname for example) */
struct test_entry {
struct oidmap_entry entry;
char name[FLEX_ARRAY];
};
#define DELIM " \t\r\n"
/*
* Read stdin line by line and print result of commands to stdout:
*
* hash oidkey -> sha1hash(oidkey)
* put oidkey namevalue -> NULL / old namevalue
* get oidkey -> NULL / namevalue
* remove oidkey -> NULL / old namevalue
* iterate -> oidkey1 namevalue1\noidkey2 namevalue2\n...
*
*/
int cmd__oidmap(int argc, const char **argv)
{
struct strbuf line = STRBUF_INIT;
struct oidmap map = OIDMAP_INIT;
setup_git_directory();
/* init oidmap */
oidmap_init(&map, 0);
/* process commands from stdin */
while (strbuf_getline(&line, stdin) != EOF) {
char *cmd, *p1 = NULL, *p2 = NULL;
struct test_entry *entry;
struct object_id oid;
/* break line into command and up to two parameters */
cmd = strtok(line.buf, DELIM);
/* ignore empty lines */
if (!cmd || *cmd == '#')
continue;
p1 = strtok(NULL, DELIM);
if (p1)
p2 = strtok(NULL, DELIM);
if (!strcmp("put", cmd) && p1 && p2) {
if (repo_get_oid(the_repository, p1, &oid)) {
printf("Unknown oid: %s\n", p1);
continue;
}
/* create entry with oid_key = p1, name_value = p2 */
FLEX_ALLOC_STR(entry, name, p2);
oidcpy(&entry->entry.oid, &oid);
/* add / replace entry */
entry = oidmap_put(&map, entry);
/* print and free replaced entry, if any */
puts(entry ? entry->name : "NULL");
free(entry);
} else if (!strcmp("get", cmd) && p1) {
if (repo_get_oid(the_repository, p1, &oid)) {
printf("Unknown oid: %s\n", p1);
continue;
}
/* lookup entry in oidmap */
entry = oidmap_get(&map, &oid);
/* print result */
puts(entry ? entry->name : "NULL");
} else if (!strcmp("remove", cmd) && p1) {
if (repo_get_oid(the_repository, p1, &oid)) {
printf("Unknown oid: %s\n", p1);
continue;
}
/* remove entry from oidmap */
entry = oidmap_remove(&map, &oid);
/* print result and free entry*/
puts(entry ? entry->name : "NULL");
free(entry);
} else if (!strcmp("iterate", cmd)) {
struct oidmap_iter iter;
oidmap_iter_init(&map, &iter);
while ((entry = oidmap_iter_next(&iter)))
printf("%s %s\n", oid_to_hex(&entry->entry.oid), entry->name);
} else {
printf("Unknown command %s\n", cmd);
}
}
strbuf_release(&line);
oidmap_free(&map, 1);
return 0;
}
|
