var.con commit Use git config file for committer name and email info (e1b1039)
   1/*
   2 * GIT - The information manager from hell
   3 *
   4 * Copyright (C) Eric Biederman, 2005
   5 */
   6#include "cache.h"
   7#include <stdio.h>
   8#include <errno.h>
   9#include <string.h>
  10
  11static const char var_usage[] = "git-var [-l | <variable>]";
  12
  13struct git_var {
  14        const char *name;
  15        char *(*read)(void);
  16};
  17static struct git_var git_vars[] = {
  18        { "GIT_COMMITTER_IDENT", git_committer_info },
  19        { "GIT_AUTHOR_IDENT",   git_author_info },
  20        { "", NULL },
  21};
  22
  23static void list_vars(void)
  24{
  25        struct git_var *ptr;
  26        for(ptr = git_vars; ptr->read; ptr++) {
  27                printf("%s=%s\n", ptr->name, ptr->read());
  28        }
  29}
  30
  31static const char *read_var(const char *var)
  32{
  33        struct git_var *ptr;
  34        const char *val;
  35        val = NULL;
  36        for(ptr = git_vars; ptr->read; ptr++) {
  37                if (strcmp(var, ptr->name) == 0) {
  38                        val = ptr->read();
  39                        break;
  40                }
  41        }
  42        return val;
  43}
  44
  45static int show_config(const char *var, const char *value)
  46{
  47        if (value)
  48                printf("%s=%s\n", var, value);
  49        else
  50                printf("%s\n", var);
  51        return git_default_config(var, value);
  52}
  53
  54int main(int argc, char **argv)
  55{
  56        const char *val;
  57        if (argc != 2) {
  58                usage(var_usage);
  59        }
  60        setup_ident();
  61        val = NULL;
  62
  63        if (strcmp(argv[1], "-l") == 0) {
  64                git_config(show_config);
  65                list_vars();
  66                return 0;
  67        }
  68        git_config(git_default_config);
  69        val = read_var(argv[1]);
  70        if (!val)
  71                usage(var_usage);
  72        
  73        printf("%s\n", val);
  74        
  75        return 0;
  76}