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
|
#define USE_THE_REPOSITORY_VARIABLE
#include "git-compat-util.h"
#include "common-init.h"
#include "exec-cmd.h"
#include "gettext.h"
#include "attr.h"
#include "repository.h"
#include "setup.h"
#include "strbuf.h"
#include "trace2.h"
/*
* Many parts of Git have subprograms communicate via pipe, expect the
* upstream of a pipe to die with SIGPIPE when the downstream of a
* pipe does not need to read all that is written. Some third-party
* programs that ignore or block SIGPIPE for their own reason forget
* to restore SIGPIPE handling to the default before spawning Git and
* break this carefully orchestrated machinery.
*
* Restore the way SIGPIPE is handled to default, which is what we
* expect.
*/
static void restore_sigpipe_to_default(void)
{
sigset_t unblock;
sigemptyset(&unblock);
sigaddset(&unblock, SIGPIPE);
sigprocmask(SIG_UNBLOCK, &unblock, NULL);
signal(SIGPIPE, SIG_DFL);
}
void init_git(const char **argv)
{
struct strbuf tmp = STRBUF_INIT;
trace2_initialize_clock();
/*
* Always open file descriptors 0/1/2 to avoid clobbering files
* in die(). It also avoids messing up when the pipes are dup'ed
* onto stdin/stdout/stderr in the child processes we spawn.
*/
sanitize_stdfds();
restore_sigpipe_to_default();
git_resolve_executable_dir(argv[0]);
setlocale(LC_CTYPE, "");
git_setup_gettext();
initialize_repository(the_repository);
attr_start();
trace2_initialize();
trace2_cmd_start(argv);
trace2_collect_process_info(TRACE2_PROCESS_INFO_STARTUP);
if (!strbuf_getcwd(&tmp))
tmp_original_cwd = strbuf_detach(&tmp, NULL);
}
|
