1 files changed, 71 insertions, 0 deletions
diff --git a/pkg/types/types.go b/pkg/types/types.go
new file mode 100644
index 0000000..4610ad4
--- /dev/null
+++ b/pkg/types/types.go
@@ -0,0 +1,71 @@
+package types
+
+import "sync"
+
+// Vcs is an enum for version control systems supported by the standard Go
+// toolchain.
+//
+// See https://pkg.go.dev/cmd/go#hdr-Module_configuration_for_non_public_modules
+type Vcs string
+
+// Vcs enum.
+const (
+	VcsBazaar     Vcs = "bzr"
+	VcsFossil     Vcs = "fossil"
+	VcsGit        Vcs = "git"
+	VcsMercurial  Vcs = "hg"
+	VcsSubversion Vcs = "svn"
+)
+
+// Module represents a Go module to index.
+type Module struct {
+	Path string // module path (without domain)
+	Vcs  Vcs    // vcs system
+	Repo string // repository's home
+	Dir  string // url template
+	File string // url template
+}
+
+// Index is the global object representing the Starlark configuration.
+type Index struct {
+	Domain  string
+	Modules map[string]Module
+	// internal
+	lock sync.Mutex
+}
+
+// SetDomain sets the domain of the index.
+func (i *Index) SetDomain(d string) {
+	i.lock.Lock()
+	defer i.lock.Unlock()
+	i.Domain = d
+}
+
+// AddModule adds a module to the index.
+func (i *Index) AddModule(n string, m Module) {
+	i.lock.Lock()
+	defer i.lock.Unlock()
+	i.Modules[n] = m
+}
+
+// GetModule returns a module from the index.
+func (i *Index) GetModule(n string) Module {
+	i.lock.Lock()
+	defer i.lock.Unlock()
+	return i.Modules[n]
+}
+
+// RemoveModule removes a module from the index.
+func (i *Index) RemoveModule(n string) {
+	i.lock.Lock()
+	defer i.lock.Unlock()
+	delete(i.Modules, n)
+}
+
+// CheckModule checks if a module is in the index.
+func (i *Index) CheckModule(n string) bool {
+	i.lock.Lock()
+	defer i.lock.Unlock()
+	_, ok := i.Modules[n]
+	return ok
+}