gomod

type BuildInfo struct {
	GoVersion string            // Version of Go that produced this binary.
	Path      string            // The main package path
	Main      *Module           // The module containing the main package
	Deps      []Module          // Module dependencies
	Settings  map[string]string // Other information about the build.
}

type Module struct {
	Path     string  // module path
	Version  string  // module version
	Replace  *Module // replaced by this module
	Main     bool    // is this the main module?
	Indirect bool    // is this module only an indirect dependency of main module?
	Dir      string  // directory holding files for this module, if any

	Dependencies []*Module `json:"-"` // modules this module depends on
	Local        bool      `json:"-"` // is this a local module?
	Packages     []Package `json:"-"` // packages in this module
	Sum          string    `json:"-"` // checksum for path, version (as in go.sum)
	TestOnly     bool      `json:"-"` // is this module only required for tests?
	Vendored     bool      `json:"-"` // is this a vendored module?
}

type ModuleDownload struct {
	Path    string // module path
	Version string // module version
	Error   string // error loading module
	Dir     string // absolute path to cached source root directory
	Sum     string // checksum for path, version (as in go.sum)
}

type Package struct {
	Dir        string  // directory containing package sources
	ImportPath string  // import path of package in dir
	Name       string  // package name
	Standard   bool    // is this package part of the standard Go library?
	Module     *Module // info about package's containing module, if any (can be nil)

	GoFiles      []string // .go source files (excluding CgoFiles, TestGoFiles, XTestGoFiles)
	CgoFiles     []string // .go source files that import "C"
	CFiles       []string // .c source files
	CXXFiles     []string // .cc, .cxx and .cpp source files
	MFiles       []string // .m source files
	HFiles       []string // .h, .hh, .hpp and .hxx source files
	FFiles       []string // .f, .F, .for and .f90 Fortran source files
	SFiles       []string // .s source files
	SwigFiles    []string // .swig files
	SwigCXXFiles []string // .swigcxx files
	SysoFiles    []string // .syso object files to add to archive
	EmbedFiles   []string // files matched by EmbedPatterns

	Error *PackageError // error loading package
}

type PackageError struct {
	Err string
}