1 files changed, 68 insertions, 0 deletions
diff --git a/include/git2/trace.h b/include/git2/trace.h
new file mode 100644
index 000000000..7409b032d
--- /dev/null
+++ b/include/git2/trace.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+#ifndef INCLUDE_git_trace_h__
+#define INCLUDE_git_trace_h__
+
+#include "common.h"
+#include "types.h"
+
+/**
+ * @file git2/trace.h
+ * @brief Git tracing configuration routines
+ * @defgroup git_trace Git tracing configuration routines
+ * @ingroup Git
+ * @{
+ */
+GIT_BEGIN_DECL
+
+/**
+ * Available tracing levels.  When tracing is set to a particular level,
+ * callers will be provided tracing at the given level and all lower levels.
+ */
+typedef enum {
+	/** No tracing will be performed. */
+	GIT_TRACE_NONE = 0,
+
+	/** Severe errors that may impact the program's execution */
+	GIT_TRACE_FATAL = 1,
+
+	/** Errors that do not impact the program's execution */
+	GIT_TRACE_ERROR = 2,
+	
+	/** Warnings that suggest abnormal data */
+	GIT_TRACE_WARN = 3,
+
+	/** Informational messages about program execution */
+	GIT_TRACE_INFO = 4,
+
+	/** Detailed data that allows for debugging */
+	GIT_TRACE_DEBUG = 5,
+
+	/** Exceptionally detailed debugging data */
+	GIT_TRACE_TRACE = 6
+} git_trace_level_t;
+
+/**
+ * An instance for a tracing function
+ */
+typedef void (*git_trace_callback)(git_trace_level_t level, const char *msg);
+
+/**
+ * Sets the system tracing configuration to the specified level with the
+ * specified callback.  When system events occur at a level equal to, or
+ * lower than, the given level they will be reported to the given callback.
+ *
+ * @param level Level to set tracing to
+ * @param cb Function to call with trace data
+ * @return 0 or an error code
+ */
+GIT_EXTERN(int) git_trace_set(git_trace_level_t level, git_trace_callback cb);
+
+/** @} */
+GIT_END_DECL
+#endif
+