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- #!/usr/bin/env bash
-
- # Display commands being run
- set -x
-
- # Only run apidiff checks on go1.12 (we only need it once).
- # TODO(deklerk) We should pass an environment variable from kokoro to decide
- # this logic instead.
- if [[ `go version` != *"go1.12"* ]]; then
- exit 0
- fi
-
- if git log -1 | grep BREAKING_CHANGE_ACCEPTABLE; then
- exit 0
- fi
-
- export GO111MODULE=on
-
- go install golang.org/x/exp/cmd/apidiff
-
- # We compare against master@HEAD. This is unfortunate in some cases: if you're
- # working on an out-of-date branch, and master gets some new feature (that has
- # nothing to do with your work on your branch), you'll get an error message.
- # Thankfully the fix is quite simple: rebase your branch.
- git clone https://github.com/googleapis/gax-go /tmp/gax
-
- for dir in "" "/v2"; do
- pkg="github.com/googleapis/gax-go$dir"
- echo "Testing $pkg"
-
- # cd to the exact directory that specifies the go module so that it doesn't
- # use the module cache. https://go-review.googlesource.com/c/exp/+/155058
- cd "/tmp/gax$dir"
- apidiff -w /tmp/pkg.master $pkg
- cd - > /dev/null
-
- # TODO(deklerk) there's probably a nicer way to do this that doesn't require
- # two invocations
- if ! apidiff -incompatible /tmp/pkg.master $pkg | (! read); then
- apidiff -incompatible /tmp/pkg.master $pkg
- exit 1
- fi
- done
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