Merge pull request #266 from jeremycw/backtrace

Add backtrace_path_filter config option
instana · Apr 12, 2022 · c9309eb · c9309eb
2 parents 8a9c0e9 + b0443e8
commit c9309eb
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diff --git a/lib/instana/tracing/span.rb b/lib/instana/tracing/span.rb
@@ -82,6 +82,9 @@ def initialize(name, parent_ctx: nil, start_time: ::Instana::Util.now_in_ms)
     # @param limit [Integer] Limit the backtrace to the top <limit> frames
     #
     def add_stack(limit: 30, stack: Kernel.caller)
+      cleaner = ::Instana.config[:backtrace_cleaner]
+      stack = cleaner.call(stack) if cleaner
+
       @data[:stack] = stack
                       .map do |call|
         file, line, *method = call.split(':')

diff --git a/test/tracing/span_test.rb b/test/tracing/span_test.rb
@@ -63,6 +63,18 @@ def test_span_collect_backtraces
     Instana.config[:collect_backtraces] = false
   end
 
+  def test_span_backtrace_cleaner
+    Instana.config[:collect_backtraces] = true
+    Instana.config[:backtrace_cleaner] =
+      ->(trace) { trace.filter { |line| line.include?("lib/instana") } }
+    span = Instana::Span.new(:excon)
+
+    assert_equal 1, span[:stack].size
+  ensure
+    Instana.config[:backtrace_cleaner] = nil
+    Instana.config[:collect_backtraces] = false
+  end
+
   def test_span_stack_over_limit
     def inner(depth = 50, &blk) # rubocop:disable Lint/NestedMethodDefinition
       return blk.call if depth.zero?