commit: use strbuf_add() to add a length-limited string
[git/raj.git] / trace2 / tr2_cmd_name.c
blobdd313204f517183ccde962e84b6d4be611adb280
1 #include "cache.h"
2 #include "trace2/tr2_cmd_name.h"
4 #define TR2_ENVVAR_PARENT_NAME "GIT_TRACE2_PARENT_NAME"
6 static struct strbuf tr2cmdname_hierarchy = STRBUF_INIT;
8 void tr2_cmd_name_append_hierarchy(const char *name)
10 const char *parent_name = getenv(TR2_ENVVAR_PARENT_NAME);
12 strbuf_reset(&tr2cmdname_hierarchy);
13 if (parent_name && *parent_name) {
14 strbuf_addstr(&tr2cmdname_hierarchy, parent_name);
15 strbuf_addch(&tr2cmdname_hierarchy, '/');
17 strbuf_addstr(&tr2cmdname_hierarchy, name);
19 setenv(TR2_ENVVAR_PARENT_NAME, tr2cmdname_hierarchy.buf, 1);
22 const char *tr2_cmd_name_get_hierarchy(void)
24 return tr2cmdname_hierarchy.buf;
27 void tr2_cmd_name_release(void)
29 strbuf_release(&tr2cmdname_hierarchy);