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internal/process/process.go

@@ -19,6 +19,7 @@ type Invocation struct {
 	Dir      string
 	Env      map[string]string
 	UnsetEnv []string
+	Stdin    io.Reader
 	Stdout   io.Writer
 	Stderr   io.Writer
 }
@@ -32,6 +33,7 @@ func Run(ctx context.Context, invocation Invocation) error {
 
 	command := exec.CommandContext(ctx, invocation.Args[0], invocation.Args[1:]...)
 	command.Dir = invocation.Dir
+	command.Stdin = invocation.Stdin
 	if len(invocation.Env) != 0 || len(invocation.UnsetEnv) != 0 {
 		command.Env = environmentEntries(invocation.Env, invocation.UnsetEnv)
 	}