Handle erase operation in auth git-credential command (#6805)

pkg/cmd/auth/gitcredential/helper.go

@@ -54,7 +54,12 @@ func NewCmdCredential(f *cmdutil.Factory, runF func(*CredentialOptions) error) *
 func helperRun(opts *CredentialOptions) error {
 	if opts.Operation == "store" {
 		// We pretend to implement the "store" operation, but do nothing since we already have a cached token.
-		return cmdutil.SilentError
+		return nil
+	}
+
+	if opts.Operation == "erase" {
+		// We pretend to implement the "erase" operation, but do nothing since we don't want git to cause user to be logged out.
+		return nil
 	}
 
 	if opts.Operation != "get" {

pkg/cmd/auth/gitcredential/helper_test.go

@@ -218,6 +218,25 @@ func Test_helperRun(t *testing.T) {
 			`),
 			wantStderr: "",
 		},
+		{
+			name: "noop store operation",
+			opts: CredentialOptions{
+				Operation: "store",
+			},
+		},
+		{
+			name: "noop erase operation",
+			opts: CredentialOptions{
+				Operation: "erase",
+			},
+		},
+		{
+			name: "unknown operation",
+			opts: CredentialOptions{
+				Operation: "unknown",
+			},
+			wantErr: true,
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {