in process commit changing computers

go.mod

@@ -0,0 +1,5 @@
+module github.com/RageCage64/pretty-diff-reporter
+
+go 1.18
+
+require github.com/google/go-cmp v0.5.9 // indirect

go.sum

@@ -0,0 +1,2 @@
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=

reporter.go

@@ -0,0 +1,54 @@
+package prettyreporter
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+type Reporter struct {
+	path      cmp.Path
+	old       []string
+	new       []string
+	diffCount int
+}
+
+func (r *Reporter) PushStep(ps cmp.PathStep) {
+	r.path = append(r.path, ps)
+}
+
+func (r *Reporter) Report(rs cmp.Result) {
+	vOld, vNew := r.path.Last().Values()
+	if !rs.Equal() {
+		r.diffCount++
+		if vOld.IsValid() {
+			r.old = append(r.old, fmt.Sprintf("%+v", vOld))
+		}
+		if vNew.IsValid() {
+			r.new = append(r.new, fmt.Sprintf("%+v", vNew))
+		}
+	} else {
+		r.old = append(r.old, "")
+		r.new = append(r.new, fmt.Sprintf("%+v", vOld))
+	}
+}
+
+func (r *Reporter) PopStep() {
+	r.path = r.path[:len(r.path)-1]
+}
+
+func (r *Reporter) String() string {
+
+	return strings.Join(r.lines, "\n")
+}
+
+func maxLen(strs []string) int {
+	max := 0
+	for _, s := range strs {
+		if len(s) > max {
+			max = len(s)
+		}
+	}
+	return max
+}