simplify the contracts

1 files changed, 23 insertions, 0 deletions

diff --git a/run/edit.go b/run/edit.go
new file mode 100644
index 0000000..ad7645c
--- /dev/null
+++ b/run/edit.go
@@ -0,0 +1,23 @@
+package run
+
+import (
+	"errors"
+	"os"
+	"os/exec"
+	"pik/model"
+)
+
+var NoEditorError = errors.New("$EDITOR not set")
+
+func Edit(t model.Target, src *model.Source) error {
+	editor := os.Getenv("EDITOR")
+	if editor == "" {
+		return NoEditorError
+	}
+	cmd := exec.Command(editor, t.File(src))
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	cmd.Dir = src.Path
+	return cmd.Run()
+}