Merge pull request #264 from VinceMacBuche/bug_3293/missing_bundle_st…

…dlib

Fixes #3293: Add missing bundle in rudder_stdlib

techniques/system/common/1.0/rudder_stdlib.st

@@ -113,6 +113,41 @@ body file_select rudder_common_minutes_old(minutes)
   file_result => "mtime";
 }
 
+# enforce content of section
+bundle edit_line rudder_ensure_section_content(section_start, section_end, content)
+{
+  vars:
+      "csection"              string => canonify("$(section_start)");
+      "escaped_section_start" string => escape(${section_start});
+      "escaped_section_end"   string => escape(${section_end});
+
+  classes:
+      # Detect if section is already there
+      "has_$(csection)" expression => regline("${escaped_section_start}", "$(edit.filename)");
+
+  delete_lines:
+      ".*"
+        select_region => rudder_section_selector("${escaped_section_start}", "${escaped_section_end}"),
+        ifvarclass => "has_$(csection)";
+
+  insert_lines:
+      # Insert new, empty section if it doesn't exist already.
+      "${section_start}
+${section_end}"
+        insert_type => "preserve_block",
+        ifvarclass => "!has_$(csection)";
+
+      # Insert missing lines into the section
+      "$(content)"
+        select_region => rudder_section_selector("${escaped_section_start}", "${escaped_section_end}");
+}
+
+body select_region rudder_section_selector(section_start, section_end)
+{
+  select_start => "${section_start}";
+  select_end   => "${section_end}";
+}
+
 ################################################
 # Reporting bundles
 ################################################