(v1 uint64, v2 int64, ret chan<- interface{})
| 888 | } |
| 889 | |
| 890 | func (m *Migrate) squashDown(v1 uint64, v2 int64, ret chan<- interface{}) { |
| 891 | defer close(ret) |
| 892 | // get the last version from the source driver |
| 893 | var err error |
| 894 | var from uint64 |
| 895 | if v2 == -1 { |
| 896 | from, err = m.sourceDrv.GetLocalVersion() |
| 897 | if err != nil { |
| 898 | ret <- err |
| 899 | return |
| 900 | } |
| 901 | } else { |
| 902 | from = uint64(v2) |
| 903 | } |
| 904 | |
| 905 | for { |
| 906 | if m.stop() { |
| 907 | return |
| 908 | } |
| 909 | |
| 910 | if from < v1 { |
| 911 | return |
| 912 | } |
| 913 | |
| 914 | prev, err := m.sourceDrv.Prev(from) |
| 915 | if errors.Is(err, fs.ErrNotExist) { |
| 916 | migr, err := m.newMigration(from, -1) |
| 917 | if err != nil { |
| 918 | ret <- err |
| 919 | return |
| 920 | } |
| 921 | ret <- migr |
| 922 | go func(migr *Migration, m *Migrate) { |
| 923 | if err := migr.Buffer(); err != nil { |
| 924 | m.Logger.Error(err) |
| 925 | } |
| 926 | }(migr, m) |
| 927 | return |
| 928 | } else if err != nil { |
| 929 | ret <- err |
| 930 | return |
| 931 | } |
| 932 | |
| 933 | err = m.versionDownExists(from) |
| 934 | if err == nil { |
| 935 | migr, err := m.newMigration(from, int64(prev)) |
| 936 | if err != nil { |
| 937 | ret <- err |
| 938 | return |
| 939 | } |
| 940 | |
| 941 | ret <- migr |
| 942 | go func(migr *Migration, m *Migrate) { |
| 943 | if err := migr.Buffer(); err != nil { |
| 944 | m.Logger.Error(err) |
| 945 | } |
| 946 | }(migr, m) |
| 947 | } else { |
no test coverage detected