1 files changed, 38 insertions, 0 deletions
diff --git a/internal/exec/exec.go b/internal/exec/exec.go
new file mode 100644
index 0000000..87e861b
--- /dev/null
+++ b/internal/exec/exec.go
@@ -0,0 +1,38 @@
+package exec
+
+import (
+	"bytes"
+	"os/exec"
+)
+
+// Run executes a shell command with the given arguments and returns stdout, stderr, exit code, and any error encountered.
+func Run(name string, args ...string) (stdout, stderr string, exitCode int, err error) {
+	cmd := exec.Command(name, args...)
+
+	var stdoutBuf, stderrBuf bytes.Buffer
+	cmd.Stdout = &stdoutBuf
+	cmd.Stderr = &stderrBuf
+
+	err = cmd.Run()
+
+	stdout = stdoutBuf.String()
+	stderr = stderrBuf.String()
+
+	if err != nil {
+		if exitError, ok := err.(*exec.ExitError); ok {
+			exitCode = exitError.ExitCode()
+			// In this case, the error is just the non-zero exit code,
+			// which we've already captured. We return nil for err to indicate
+			// that the command actually ran and exited (even if non-zero).
+			err = nil
+		} else {
+			// This is a "real" error, e.g., binary not found
+			exitCode = -1
+			return stdout, stderr, exitCode, err
+		}
+	} else {
+		exitCode = 0
+	}
+
+	return stdout, stderr, exitCode, nil
+}