refactoring: extract stdin and boltdb readers

Signed-off-by: Dave Henderson <dhenderson@gmail.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/data/datasource_stdin.go b/data/datasource_stdin.go
new file mode 100644
index 00000000..f23905d2
--- /dev/null
+++ b/data/datasource_stdin.go
@@ -0,0 +1,19 @@
+package data
+
+import (
+	"io/ioutil"
+	"os"
+
+	"github.com/pkg/errors"
+)
+
+func readStdin(source *Source, args ...string) ([]byte, error) {
+	if stdin == nil {
+		stdin = os.Stdin
+	}
+	b, err := ioutil.ReadAll(stdin)
+	if err != nil {
+		return nil, errors.Wrapf(err, "Can't read %s", stdin)
+	}
+	return b, nil
+}