.travis.yml: Grow the build matrix, pin golang.org/x/tools version

Not pinning the golang.org/x/tools version causes non-module builds to use the latest version, which is broken on older versions of Go.
kisielk · Jun 28, 2019 · ff068b1 · ff068b1
1 parent 3bf72b1
commit ff068b1
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -5,7 +5,22 @@ matrix:
   include:
     - go: "1.9"
     - go: "1.10"
+    - go: "1.11"
+      env: {GO111MODULE: "off"}
+    - go: "1.12"
+      env: {GO111MODULE: "off"}
     - go: "tip"
+      env: {GO111MODULE: "off"}
+
+install: |
+  if test -z "$(go env GOMOD)"; then
+    go get -d -t ./... &&
+    ver=$(sed -n '/^require/s/.*[ -]//p' go.mod) &&
+    (
+      cd "$(go env GOPATH)/src/golang.org/x/tools" &&
+      git checkout "$ver"
+    )
+  fi
 
 script:
   - go test -race ./...