Refactor package print into out to fix failing predeclared linter

pkg/out/dump.go

@@ -0,0 +1,32 @@
+package out
+
+import (
+	"strings"
+)
+
+// DumpPrinter prints a list of repos in a dump file format.
+type DumpPrinter struct{}
+
+// NewDumpPrinter creates a DumpPrinter.
+func NewDumpPrinter() *DumpPrinter {
+	return &DumpPrinter{}
+}
+
+// Print generates a list of repos URLs. Each line contains a URL and, if applicable, a currently checked out branch name.
+// It's a way to dump all repositories managed by git-get and is supposed to be consumed by `git get --dump`.
+func (p *DumpPrinter) Print(repos []Printable) string {
+	var str strings.Builder
+
+	for _, r := range repos {
+		str.WriteString(r.Remote())
+
+		// TODO: if head is detached maybe we should get the revision it points to in case it's a tag
+		if current := r.Current(); current != "" && current != head {
+			str.WriteString(" " + current)
+		}
+
+		str.WriteString("\n")
+	}
+
+	return str.String()
+}