Merge pull request #20939 from cypress-io/issue-19299-dbus-warnings

fix: silence dbus errors
cypress-io · Apr 7, 2022 · b031803 · b031803 · cypress-bot · Apr 7, 2022
2 parents 6a4823b + eb65946
commit b031803
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Showing 2 changed files with 18 additions and 1 deletion.
diff --git a/cli/lib/exec/spawn.js b/cli/lib/exec/spawn.js
@@ -16,7 +16,21 @@ const isXlibOrLibudevRe = /^(?:Xlib|libudev)/
 const isHighSierraWarningRe = /\*\*\* WARNING/
 const isRenderWorkerRe = /\.RenderWorker-/
 
-const GARBAGE_WARNINGS = [isXlibOrLibudevRe, isHighSierraWarningRe, isRenderWorkerRe]
+// Chromium (which Electron uses) always makes several attempts to connect to the system dbus.
+// This works fine in most desktop environments, but in a docker container, there is no dbus service
+// and Chromium emits several error lines, similar to these:
+
+// [1957:0406/160550.146820:ERROR:bus.cc(392)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
+// [1957:0406/160550.147994:ERROR:bus.cc(392)] Failed to connect to the bus: Address does not contain a colon
+
+// These warnings are absolutely harmless. Failure to connect to dbus means that electron won't be able to access the user's
+// credential wallet (none exists in a docker container) and won't show up in the system tray (again, none exists).
+// Failure to connect is expected and normal here, but users frequently misidentify these errors as the cause of their problems.
+
+// https://github.com/cypress-io/cypress/issues/19299
+const isDbusWarning = /Failed to connect to the bus:/
+
+const GARBAGE_WARNINGS = [isXlibOrLibudevRe, isHighSierraWarningRe, isRenderWorkerRe, isDbusWarning]
 
 const isGarbageLineWarning = (str) => {
   return _.some(GARBAGE_WARNINGS, (re) => {

diff --git a/cli/test/lib/exec/spawn_spec.js b/cli/test/lib/exec/spawn_spec.js
@@ -65,6 +65,9 @@ describe('lib/exec/spawn', function () {
         [46454:0702/140217.292555:ERROR:gles2_cmd_decoder.cc(4439)] [.RenderWorker-0x7f8bc5815a00.GpuRasterization]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawElements: framebuffer incomplete
         [46454:0702/140217.292584:ERROR:gles2_cmd_decoder.cc(4439)] [.RenderWorker-0x7f8bc5815a00.GpuRasterization]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glClear: framebuffer incomplete
         [46454:0702/140217.292612:ERROR:gles2_cmd_decoder.cc(4439)] [.RenderWorker-0x7f8bc5815a00.GpuRasterization]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawElements: framebuffer incomplete'
+
+        [1957:0406/160550.146820:ERROR:bus.cc(392)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
+        [1957:0406/160550.147994:ERROR:bus.cc(392)] Failed to connect to the bus: Address does not contain a colon
       `
 
       const lines = _