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-rw-r--r--var.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/var.c b/var.c
new file mode 100644
index 0000000..488ec51
--- /dev/null
+++ b/var.c
@@ -0,0 +1,65 @@
+/*
+ * GIT - The information manager from hell
+ *
+ * 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>]";
+
+struct git_var {
+ const char *name;
+ char *(*read)(void);
+};
+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());
+ }
+}
+
+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();
+ break;
+ }
+ }
+ return val;
+}
+
+int main(int argc, char **argv)
+{
+ const char *val;
+ if (argc != 2) {
+ usage(var_usage);
+ }
+ setup_ident();
+ val = NULL;
+
+ if (strcmp(argv[1], "-l") == 0) {
+ list_vars();
+ return 0;
+ }
+ val = read_var(argv[1]);
+ if (!val)
+ usage(var_usage);
+
+ printf("%s\n", val);
+
+ return 0;
+}