trace2 / tr2_cmd_name.con commit help: move git-diff and git-reset to different groups (1235875)
   1#include "cache.h"
   2#include "trace2/tr2_cmd_name.h"
   3
   4#define TR2_ENVVAR_PARENT_NAME "GIT_TR2_PARENT_NAME"
   5
   6static struct strbuf tr2cmdname_hierarchy = STRBUF_INIT;
   7
   8void tr2_cmd_name_append_hierarchy(const char *name)
   9{
  10        const char *parent_name = getenv(TR2_ENVVAR_PARENT_NAME);
  11
  12        strbuf_reset(&tr2cmdname_hierarchy);
  13        if (parent_name && *parent_name) {
  14                strbuf_addstr(&tr2cmdname_hierarchy, parent_name);
  15                strbuf_addch(&tr2cmdname_hierarchy, '/');
  16        }
  17        strbuf_addstr(&tr2cmdname_hierarchy, name);
  18
  19        setenv(TR2_ENVVAR_PARENT_NAME, tr2cmdname_hierarchy.buf, 1);
  20}
  21
  22const char *tr2_cmd_name_get_hierarchy(void)
  23{
  24        return tr2cmdname_hierarchy.buf;
  25}
  26
  27void tr2_cmd_name_release(void)
  28{
  29        strbuf_release(&tr2cmdname_hierarchy);
  30}