1 files changed, 52 insertions, 0 deletions
diff --git a/fi-svntogit-to-aur/errors.go b/fi-svntogit-to-aur/errors.go
new file mode 100644
index 0000000..681ef4f
--- /dev/null
+++ b/fi-svntogit-to-aur/errors.go
@@ -0,0 +1,52 @@
+package main
+
+import (
+	"os/exec"
+	"strings"
+)
+
+type ProcessError struct {
+	*exec.ExitError
+	Cmd string
+}
+
+func (e *ProcessError) Error() string {
+	lines := strings.Split(string(e.ExitError.Stderr), "\n")
+	if lines[len(lines)-1] == "" {
+		lines = lines[:len(lines)-1]
+	}
+	ret := e.Cmd + ": " + e.ExitError.Error()
+	if len(lines) > 0 {
+		ret += ":\n > " + strings.Join(lines, "\n > ")
+	}
+	return ret
+}
+
+type ErrorCollector struct {
+	errs []error
+}
+
+func (ec ErrorCollector) Error() string {
+	lines := make([]string, len(ec.errs))
+	for i := range ec.errs {
+		lines[i] = ec.errs[i].Error()
+	}
+	return strings.Join(lines, "\n")
+}
+
+func (ec *ErrorCollector) Add(err error) {
+	if err != nil {
+		ec.errs = append(ec.errs, err)
+	}
+}
+
+func (ec ErrorCollector) Err() error {
+	switch len(ec.errs) {
+	case 0:
+		return nil
+	case 1:
+		return ec.errs[0]
+	default:
+		return ec
+	}
+}