`no buildable Go source files`

[miparnisari]

I'm trying to analyze an open source repo: https://github.com/authzed/spicedb

[15:59:58] ~/Documents/GitHub/spicedb (main) $ /Users/miparnisari/go/bin/godepgraph github.com/authzed/spicedb
2025/04/09 16:00:00 failed to import github.com/authzed/spicedb (imported at level 1 by ):
no buildable Go source files in /Users/miparnisari/Documents/GitHub/spicedb

[16:00:00] ~/Documents/GitHub/spicedb (main) $ /Users/miparnisari/go/bin/godepgraph .
2025/04/09 16:01:08 failed to import . (imported at level 1 by ):
no buildable Go source files in /Users/miparnisari/Documents/GitHub/spicedb
[16:01:08] ~/Documents/GitHub/spicedb (main) $

What am I missing? Thank you!

[marcofeltmann]

That is an interesting question.

It happened to me when I checked some package that had not a single .go file in the main package's directory. So I had to navigate to a sub-package and build the whole import graph for each sub package.

This specific repository has a mage.go file in its root package, but it's not built:

$ go build .
package github.com/authzed/spicedb: build constraints exclude all Go files in ~/go/pkg/mod/github.com/authzed/spicedb@v1.45.4

$ head -n3 mage.go 
//go:build ignore

package main

If you run it against a subpackage that actually contains .go files not ignored during build, you'll get some result.

$ godepgraph github.com/authzed/spicedb/pkg/cursor | head
digraph godep {
splines=ortho
nodesep=0.4
ranksep=0.8
node [shape="box",style="rounded,filled"]
edge [arrowsize="0.5"]
"buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go/buf/validate" [label="buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go/buf/validate" color="paleturquoise" URL="https://godoc.org/buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go/buf/validate" target="_blank"];
"buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go/buf/validate" -> "google.golang.org/protobuf/reflect/protoreflect";
"buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go/buf/validate" -> "google.golang.org/protobuf/runtime/protoimpl";
"buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go/buf/validate" -> "google.golang.org/protobuf/types/descriptorpb";

Hope that helps. :)