git/var.c
Steffen Prohaska 2fb3f6db96 Add calls to git_extract_argv0_path() in programs that call git_config_*
Programs that use git_config need to find the global configuration.
When runtime prefix computation is enabled, this requires that
git_extract_argv0_path() is called early in the program's main().

This commit adds the necessary calls.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-26 00:26:05 -08:00

79 lines
1.4 KiB
C

/*
* GIT - The information manager from hell
*
* Copyright (C) Eric Biederman, 2005
*/
#include "cache.h"
#include "exec_cmd.h"
static const char var_usage[] = "git var [-l | <variable>]";
struct git_var {
const char *name;
const char *(*read)(int);
};
static struct git_var git_vars[] = {
{ "GIT_COMMITTER_IDENT", git_committer_info },
{ "GIT_AUTHOR_IDENT", git_author_info },
{ "", NULL },
};
static void list_vars(void)
{
struct git_var *ptr;
for(ptr = git_vars; ptr->read; ptr++) {
printf("%s=%s\n", ptr->name, ptr->read(IDENT_WARN_ON_NO_NAME));
}
}
static const char *read_var(const char *var)
{
struct git_var *ptr;
const char *val;
val = NULL;
for(ptr = git_vars; ptr->read; ptr++) {
if (strcmp(var, ptr->name) == 0) {
val = ptr->read(IDENT_ERROR_ON_NO_NAME);
break;
}
}
return val;
}
static int show_config(const char *var, const char *value, void *cb)
{
if (value)
printf("%s=%s\n", var, value);
else
printf("%s\n", var);
return git_default_config(var, value, cb);
}
int main(int argc, char **argv)
{
const char *val;
int nongit;
if (argc != 2) {
usage(var_usage);
}
git_extract_argv0_path(argv[0]);
setup_git_directory_gently(&nongit);
val = NULL;
if (strcmp(argv[1], "-l") == 0) {
git_config(show_config, NULL);
list_vars();
return 0;
}
git_config(git_default_config, NULL);
val = read_var(argv[1]);
if (!val)
usage(var_usage);
printf("%s\n", val);
return 0;
}