99c635d8df
Implement the core logic for comparing two archives (diff) and performing incremental updates (sync). - Introduces a new `borg diff` command to show differences between two collection archives. - Adds new `pkg/diff` and `pkg/sync` packages with corresponding business logic and unit tests. - The `diff` command supports reading compressed archives and prints a formatted summary of added, removed, and modified files. - The `sync` package includes `append`, `mirror`, and `update` strategies. Next steps involve integrating the sync logic into the `collect` commands. Co-authored-by: Snider <631881+Snider@users.noreply.github.com>
75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
package diff
|
|
|
|
import (
|
|
"reflect"
|
|
"sort"
|
|
"testing"
|
|
|
|
"github.com/Snider/Borg/pkg/datanode"
|
|
)
|
|
|
|
func TestCompare_Good(t *testing.T) {
|
|
a := datanode.New()
|
|
a.AddData("file1.txt", []byte("hello"))
|
|
a.AddData("file2.txt", []byte("world"))
|
|
|
|
b := datanode.New()
|
|
b.AddData("file1.txt", []byte("hello"))
|
|
b.AddData("file2.txt", []byte("world"))
|
|
|
|
diff, err := Compare(a, b)
|
|
if err != nil {
|
|
t.Fatalf("Compare() error = %v", err)
|
|
}
|
|
if len(diff.Added) != 0 || len(diff.Removed) != 0 || len(diff.Modified) != 0 {
|
|
t.Errorf("Expected no differences, but got %+v", diff)
|
|
}
|
|
}
|
|
|
|
func TestCompare_Bad(t *testing.T) {
|
|
a := datanode.New()
|
|
a.AddData("file1.txt", []byte("hello"))
|
|
a.AddData("file2.txt", []byte("world"))
|
|
a.AddData("file3.txt", []byte("old"))
|
|
|
|
b := datanode.New()
|
|
b.AddData("file1.txt", []byte("hello"))
|
|
b.AddData("file3.txt", []byte("new"))
|
|
b.AddData("file4.txt", []byte("added"))
|
|
|
|
diff, err := Compare(a, b)
|
|
if err != nil {
|
|
t.Fatalf("Compare() error = %v", err)
|
|
}
|
|
|
|
sort.Strings(diff.Added)
|
|
sort.Strings(diff.Removed)
|
|
sort.Strings(diff.Modified)
|
|
|
|
expectedAdded := []string{"file4.txt"}
|
|
expectedRemoved := []string{"file2.txt"}
|
|
expectedModified := []string{"file3.txt"}
|
|
|
|
if !reflect.DeepEqual(diff.Added, expectedAdded) {
|
|
t.Errorf("Expected Added %v, got %v", expectedAdded, diff.Added)
|
|
}
|
|
if !reflect.DeepEqual(diff.Removed, expectedRemoved) {
|
|
t.Errorf("Expected Removed %v, got %v", expectedRemoved, diff.Removed)
|
|
}
|
|
if !reflect.DeepEqual(diff.Modified, expectedModified) {
|
|
t.Errorf("Expected Modified %v, got %v", expectedModified, diff.Modified)
|
|
}
|
|
}
|
|
|
|
func TestCompare_Ugly(t *testing.T) {
|
|
a := datanode.New()
|
|
b := datanode.New()
|
|
|
|
diff, err := Compare(a, b)
|
|
if err != nil {
|
|
t.Fatalf("Compare() error = %v", err)
|
|
}
|
|
if len(diff.Added) != 0 || len(diff.Removed) != 0 || len(diff.Modified) != 0 {
|
|
t.Errorf("Expected no differences for empty datanodes, but got %+v", diff)
|
|
}
|
|
}
|