script: switch to go install for tools (#210)

script/bootstrap

@@ -8,19 +8,14 @@ golangci_lint_version='v1.23.6'
 golangci_install_script="https://raw.githubusercontent.com/golangci/golangci-lint/${golangci_lint_version}/install.sh"
 curl -sfL "${golangci_install_script}" | sh -s -- -b "$GOPATH/bin" "${golangci_lint_version}"
 
-# Install tools.
-tools=(
-    # embedmd required for documentation generation
-    github.com/campoy/embedmd
+# embedmd required for documentation generation
+go install github.com/campoy/[email protected]
 
-    # covertool for merging coverage reports
-    github.com/dlespiau/covertool
+# covertool for merging coverage reports
+go install github.com/dlespiau/covertool@v0.0.0-20180314162135-b0c4c6d0583a
 
-    # asmfmt for enforcing assembly style
-    github.com/klauspost/asmfmt/cmd/asmfmt
+# asmfmt for enforcing assembly style
+go install github.com/klauspost/asmfmt/cmd/asmfmt@v1.3.1
 
-    # gofumports for stricter formatting
-    mvdan.cc/gofumpt/gofumports
-)
-
-go install -modfile=script/tools.mod "${tools[@]}"
+# gofumports for stricter formatting
+go install mvdan.cc/gofumpt/[email protected]