Delve: build tags are not documented or maybe are not supported

[karlmutch]

Please answer the following before submitting your issue:

Note: Please include any substantial examples (debug session output,
stacktraces, etc) as linked gists.

1. What version of Delve are you using (dlv version)?
   1.0.0-rc1

2. What version of Go are you using? (go version)?
   1.8.3

3. What operating system and processor architecture are you using?
   Ubuntu 14.04

4. What did you do?
   used the -tags option for conditional compilation both before and after the -- inside dlv test, dlv debug

Examples I tried included

9992 dlv test -test.v -tags "NO_CUDA" -loglevel=debug
9993 dlv test -test.v --build-flags "-tags NO_CUDA" -loglevel=debug
9994 dlv debug -test.v --build-flags "-tags NO_CUDA" -loglevel=debug
9995 dlv debug -test.v -tags "NO_CUDA" -loglevel=debug
9996 dlv debug -test.v --build-flags "NO_CUDA" -loglevel=debug

However the NO_CUDA never seemed to take effect at the build step

1. What did you expect to see?
   The code conditionally compiled to include code or exclude code specified by the go build -tag option

2. What did you see instead?
   tag is being ignored

[karlmutch]

Answer 👍

dlv test --build-flags "-tags "NO_CUDA""

[jpap]

Multiple tags didn't work for me using @karlmutch's approach. What worked for me was to mix single and double quotes as follows:

dlv test --build-flags="-tags 'TAG1 TAG2 TAG3'"