write_in_full: really write in full or return error on disk full.

diff --git a/var.c b/var.c
index 488ec5147a227444490e3d73ce03e1acd786f998..39977b949a1be61f1cf35512bd729862de842108 100644 (file)
--- a/var.c
+++ b/var.c
@@ -4,15 +4,12 @@
  * Copyright (C) Eric Biederman, 2005
  */
 #include "cache.h"
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
 
-static char *var_usage = "git-var [-l | <variable>]";
+static const char var_usage[] = "git-var [-l | <variable>]";
 
 struct git_var {
        const char *name;
-       char *(*read)(void);
+       const char *(*read)(int);
 };
 static struct git_var git_vars[] = {
        { "GIT_COMMITTER_IDENT", git_committer_info },
@@ -24,7 +21,7 @@ static void list_vars(void)
 {
        struct git_var *ptr;
        for(ptr = git_vars; ptr->read; ptr++) {
-               printf("%s=%s\n", ptr->name, ptr->read());
+               printf("%s=%s\n", ptr->name, ptr->read(0));
        }
 }
 
@@ -35,26 +32,39 @@ static const char *read_var(const char *var)
        val = NULL;
        for(ptr = git_vars; ptr->read; ptr++) {
                if (strcmp(var, ptr->name) == 0) {
-                       val = ptr->read();
+                       val = ptr->read(1);
                        break;
                }
        }
        return val;
 }
 
+static int show_config(const char *var, const char *value)
+{
+       if (value)
+               printf("%s=%s\n", var, value);
+       else
+               printf("%s\n", var);
+       return git_default_config(var, value);
+}
+
 int main(int argc, char **argv)
 {
        const char *val;
        if (argc != 2) {
                usage(var_usage);
        }
+
+       setup_git_directory();
        setup_ident();
        val = NULL;
 
        if (strcmp(argv[1], "-l") == 0) {
+               git_config(show_config);
                list_vars();
                return 0;
        }
+       git_config(git_default_config);
        val = read_var(argv[1]);
        if (!val)
                usage(var_usage);