Misc fixes for handling groups (#4195)

A bunch of places where we missed handling groups
<!-- PR description-->

---

#### Does this PR need a docs update or release note?

- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No

#### Type of change

<!--- Please check the type of change your PR introduces: --->
- [ ] 🌻 Feature
- [x] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Supportability/Tests
- [ ] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

<!-- Can reference multiple issues. Use one of the following "magic words" - "closes, fixes" to auto-close the Github issue. -->
* #<issue>

#### Test Plan

<!-- How will this be tested prior to merging.-->
- [ ] 💪 Manual
- [x] ⚡ Unit test
- [ ] 💚 E2E

src/internal/m365/graph/metadata/metadata.go

@@ -10,7 +10,7 @@ func IsMetadataFile(p path.Path) bool {
 	case path.OneDriveService:
 		return metadata.HasMetaSuffix(p.Item())
 
-	case path.SharePointService:
+	case path.SharePointService, path.GroupsService:
 		return p.Category() == path.LibrariesCategory && metadata.HasMetaSuffix(p.Item())
 
 	default:

src/internal/m365/graph/metadata/metadata_test.go

@@ -73,6 +73,11 @@ var (
 			category: path.PagesCategory,
 			expected: assert.Falsef,
 		},
+		{
+			service:  path.GroupsService,
+			category: path.LibrariesCategory,
+			expected: assert.Truef,
+		},
 	}
 )
 

src/pkg/backup/details/details.go

@@ -47,8 +47,8 @@ func (d *Details) add(
 	// Use the item name and the path for the ShortRef. This ensures that renames
 	// within a directory generate unique ShortRefs.
 	if info.infoType() == OneDriveItem || info.infoType() == SharePointLibrary {
-		if info.OneDrive == nil && info.SharePoint == nil {
-			return entry, clues.New("item is not SharePoint or OneDrive type")
+		if info.OneDrive == nil && info.SharePoint == nil && info.Groups == nil {
+			return entry, clues.New("item is not Groups, SharePoint or OneDrive type")
 		}
 
 		// clean metadata suffixes from item refs

src/pkg/backup/details/details_test.go

@@ -207,32 +207,51 @@ func exchangeEntry(t *testing.T, id string, size int, it ItemType) Entry {
 	}
 }
 
-func oneDriveishEntry(t *testing.T, id string, size int, it ItemType) Entry {
-	service := path.OneDriveService
-	category := path.FilesCategory
-	info := ItemInfo{
-		OneDrive: &OneDriveInfo{
-			ItemName:  "bar",
-			DriveID:   "drive-id",
-			DriveName: "drive-name",
-			Modified:  time.Now(),
-			ItemType:  it,
-			Size:      int64(size),
-		},
-	}
+func oneDriveishEntry(t *testing.T, id string, size int, it ItemType, service path.ServiceType) Entry {
+	var (
+		category path.CategoryType
+		info     ItemInfo
+	)
 
-	if it == SharePointLibrary {
-		service = path.SharePointService
+	switch it {
+	case OneDriveItem:
+		category = path.FilesCategory
+		info = ItemInfo{
+			OneDrive: &OneDriveInfo{
+				ItemName:  "bar",
+				DriveID:   "drive-id",
+				DriveName: "drive-name",
+				Modified:  time.Now(),
+				ItemType:  it,
+				Size:      int64(size),
+			},
+		}
+	case SharePointLibrary:
 		category = path.LibrariesCategory
 
-		info.OneDrive = nil
-		info.SharePoint = &SharePointInfo{
-			ItemName:  "bar",
-			DriveID:   "drive-id",
-			DriveName: "drive-name",
-			Modified:  time.Now(),
-			ItemType:  it,
-			Size:      int64(size),
+		switch service {
+		case path.SharePointService:
+			info = ItemInfo{
+				SharePoint: &SharePointInfo{
+					ItemName:  "bar",
+					DriveID:   "drive-id",
+					DriveName: "drive-name",
+					Modified:  time.Now(),
+					ItemType:  it,
+					Size:      int64(size),
+				},
+			}
+		case path.GroupsService:
+			info = ItemInfo{
+				Groups: &GroupsInfo{
+					ItemName:  "bar",
+					DriveID:   "drive-id",
+					DriveName: "drive-name",
+					Modified:  time.Now(),
+					ItemType:  it,
+					Size:      int64(size),
+				},
+			}
 		}
 	}
 
@@ -277,21 +296,25 @@ func (suite *DetailsUnitSuite) TestDetailsAdd_NoLocationFolders() {
 		},
 		{
 			name:  "OneDrive File",
-			entry: oneDriveishEntry(t, itemID, 42, OneDriveItem),
+			entry: oneDriveishEntry(t, itemID, 42, OneDriveItem, path.OneDriveService),
 		},
 		{
 			name:  "SharePoint File",
-			entry: oneDriveishEntry(t, itemID, 42, SharePointLibrary),
+			entry: oneDriveishEntry(t, itemID, 42, SharePointLibrary, path.SharePointService),
 		},
 		{
 			name: "Legacy SharePoint File",
 			entry: func() Entry {
-				res := oneDriveishEntry(t, itemID, 42, SharePointLibrary)
+				res := oneDriveishEntry(t, itemID, 42, SharePointLibrary, path.SharePointService)
 				res.SharePoint.ItemType = OneDriveItem
 
 				return res
 			}(),
 		},
+		{
+			name:  "Group SharePoint File",
+			entry: oneDriveishEntry(t, itemID, 42, SharePointLibrary, path.GroupsService),
+		},
 	}
 
 	for _, test := range table {
@@ -333,11 +356,11 @@ func (suite *DetailsUnitSuite) TestDetailsAdd_LocationFolders() {
 	t := suite.T()
 
 	exchangeMail1 := exchangeEntry(t, "foo1", 42, ExchangeMail)
-	oneDrive1 := oneDriveishEntry(t, "foo1", 42, OneDriveItem)
-	sharePoint1 := oneDriveishEntry(t, "foo1", 42, SharePointLibrary)
-	sharePointLegacy1 := oneDriveishEntry(t, "foo1", 42, SharePointLibrary)
+	oneDrive1 := oneDriveishEntry(t, "foo1", 42, OneDriveItem, path.OneDriveService)
+	sharePoint1 := oneDriveishEntry(t, "foo1", 42, SharePointLibrary, path.SharePointService)
+	sharePointLegacy1 := oneDriveishEntry(t, "foo1", 42, SharePointLibrary, path.SharePointService)
 	sharePointLegacy1.SharePoint.ItemType = OneDriveItem
-
+	group1 := oneDriveishEntry(t, "foo1", 42, SharePointLibrary, path.GroupsService)
 	// Sleep for a little so we get a larger difference in mod times between the
 	// earlier and later entries.
 	time.Sleep(100 * time.Millisecond)
@@ -611,6 +634,33 @@ func (suite *DetailsUnitSuite) TestDetailsAdd_LocationFolders() {
 					res = append(res, e)
 				}
 
+				return res
+			},
+		},
+		{
+			name: "One Group SharePoint Item",
+			entries: func() []Entry {
+				e := group1
+				ei := *group1.Groups
+				e.Groups = &ei
+
+				return []Entry{e}
+			},
+			expectedDirs: func() []Entry {
+				res := []Entry{}
+
+				for _, entry := range oneDriveishFolders {
+					e := entry
+					ei := *entry.Folder
+
+					e.Folder = &ei
+					e.Folder.DataType = SharePointLibrary
+					e.Folder.Size = group1.Groups.Size
+					e.Folder.Modified = group1.Groups.Modified
+
+					res = append(res, e)
+				}
+
 				return res
 			},
 		},

src/pkg/backup/details/groups.go

@@ -17,7 +17,6 @@ func NewGroupsLocationIDer(
 	driveID string,
 	escapedFolders ...string,
 ) (uniqueLoc, error) {
-	// TODO(meain): path fixes
 	if err := path.ValidateServiceAndCategory(path.GroupsService, category); err != nil {
 		return uniqueLoc{}, clues.Wrap(err, "making groups LocationIDer")
 	}
@@ -26,12 +25,12 @@ func NewGroupsLocationIDer(
 	prefixElems := 1
 
 	if driveID != "" { // non sp paths don't have driveID
-		pb.Append(driveID)
+		pb = pb.Append(driveID)
 
 		prefixElems = 2
 	}
 
-	pb.Append(escapedFolders...)
+	pb = pb.Append(escapedFolders...)
 
 	return uniqueLoc{pb, prefixElems}, nil
 }
@@ -125,7 +124,6 @@ func (i *GroupsInfo) uniqueLocation(baseLoc *path.Builder) (*uniqueLoc, error) {
 }
 
 func (i *GroupsInfo) updateFolder(f *FolderInfo) error {
-	// TODO(meain): path updates if any
 	if i.ItemType == SharePointLibrary {
 		return updateFolderWithinDrive(SharePointLibrary, i.DriveName, i.DriveID, f)
 	}