func (p RedisBrokerPlugin) Backup(endpoint plugin.ShieldEndpoint) error {
// Use ExecWithOptions here, to allow tar to exit 1 as warning about
// files changing/shrinking/disappearing is ok in this specific case
// redis-check-aof is used in restore to fix corruption on the last
// command in the AOF, and the file is written to every second. At
// worst, the restored data appears to have been backed up one second
// prior to when it actually was
opts := plugin.ExecOptions{
Cmd: "tar -c --warning no-file-changed --warning no-file-shrank --warning no-file-removed -C /var/vcap/store .",
Stdout: os.Stdout,
ExpectRC: []int{0, 1},
}
err := plugin.ExecWithOptions(opts)
if err != nil {
return err
}
return nil
}
var _ = Describe("Plugin Commands", func() {
drain := func(file *os.File, output chan string) {
data, err := ioutil.ReadAll(file)
if err != nil {
panic(fmt.Sprintf("Error reading from pipe, test is invalid: %s", err.Error()))
}
output <- string(data)
}
It("Executes commands successfully", func() {
opts := plugin.ExecOptions{
Cmd: "test/bin/exec_tester 0",
}
err := plugin.ExecWithOptions(opts)
Expect(err).ShouldNot(HaveOccurred())
})
It("Returns errors when the command fails", func() {
opts := plugin.ExecOptions{
Cmd: "test/bin/exec_tester 1",
}
err := plugin.ExecWithOptions(opts)
Expect(err).Should(HaveOccurred())
})
It("Doesn't return errors when the command returns an expected exit code", func() {
opts := plugin.ExecOptions{
Cmd: "test/bin/exec_tester 1",
ExpectRC: []int{0, 1},
}
err := plugin.ExecWithOptions(opts)