#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);

}