Labels issues (#7515)

Initial work on host labels from the dedicated branch. Includes work for issues #7096, #7400, #7411, #7369, #7410, #7458, #7459, #7412 and #7408 by @vlvkobal, @thiagoftsm, @cakrit and @amoss.

2 files changed, 26 insertions, 0 deletions

diff --git a/libnetdata/simple_pattern/simple_pattern.c b/libnetdata/simple_pattern/simple_pattern.c
index ab4b9de3c5..44fa42a629 100644
--- a/libnetdata/simple_pattern/simple_pattern.c
+++ b/libnetdata/simple_pattern/simple_pattern.c
@@ -331,3 +331,26 @@ extern int simple_pattern_is_potential_name(SIMPLE_PATTERN *p)
     }
     return (alpha || wildcards) && !colon;
 }
+
+char *simple_pattern_trim_around_equal(char *src) {
+    char *store = mallocz(strlen(src) +1);
+    if(!store)
+        return NULL;
+
+    char *dst = store;
+    while (*src) {
+        if (*src == '=') {
+            if (*(dst -1) == ' ')
+                dst--;
+
+            *dst++ = *src++;
+            if (*src == ' ')
+                src++;
+        }
+
+        *dst++ = *src++;
+    }
+    *dst = 0x00;
+
+    return store;
+}
diff --git a/libnetdata/simple_pattern/simple_pattern.h b/libnetdata/simple_pattern/simple_pattern.h
index cb5e7699dd..ec6b535879 100644
--- a/libnetdata/simple_pattern/simple_pattern.h
+++ b/libnetdata/simple_pattern/simple_pattern.h
@@ -33,4 +33,7 @@ extern void simple_pattern_free(SIMPLE_PATTERN *list);
 extern void simple_pattern_dump(uint64_t debug_type, SIMPLE_PATTERN *p) ;
 extern int simple_pattern_is_potential_name(SIMPLE_PATTERN *p) ;
 
+//Auxiliary function to create a pattern
+char *simple_pattern_trim_around_equal(char *src);
+
 #endif //NETDATA_SIMPLE_PATTERN_H