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-rw-r--r--trace2/tr2_cmd_name.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/trace2/tr2_cmd_name.c b/trace2/tr2_cmd_name.c
new file mode 100644
index 0000000..b7b5a86
--- /dev/null
+++ b/trace2/tr2_cmd_name.c
@@ -0,0 +1,31 @@
+#include "git-compat-util.h"
+#include "strbuf.h"
+#include "trace2/tr2_cmd_name.h"
+
+#define TR2_ENVVAR_PARENT_NAME "GIT_TRACE2_PARENT_NAME"
+
+static struct strbuf tr2cmdname_hierarchy = STRBUF_INIT;
+
+void tr2_cmd_name_append_hierarchy(const char *name)
+{
+ const char *parent_name = getenv(TR2_ENVVAR_PARENT_NAME);
+
+ strbuf_reset(&tr2cmdname_hierarchy);
+ if (parent_name && *parent_name) {
+ strbuf_addstr(&tr2cmdname_hierarchy, parent_name);
+ strbuf_addch(&tr2cmdname_hierarchy, '/');
+ }
+ strbuf_addstr(&tr2cmdname_hierarchy, name);
+
+ setenv(TR2_ENVVAR_PARENT_NAME, tr2cmdname_hierarchy.buf, 1);
+}
+
+const char *tr2_cmd_name_get_hierarchy(void)
+{
+ return tr2cmdname_hierarchy.buf;
+}
+
+void tr2_cmd_name_release(void)
+{
+ strbuf_release(&tr2cmdname_hierarchy);
+}