|
| 1 | +// Copyright © 2018 Intel Corporation |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | + |
| 15 | +package cmd |
| 16 | + |
| 17 | +import ( |
| 18 | + "io/ioutil" |
| 19 | + "log" |
| 20 | + "os" |
| 21 | + "path/filepath" |
| 22 | + "strconv" |
| 23 | + "strings" |
| 24 | + |
| 25 | + "github.com/clearlinux/mixer-tools/builder" |
| 26 | + "github.com/pkg/errors" |
| 27 | + "github.com/spf13/cobra" |
| 28 | +) |
| 29 | + |
| 30 | +var resetCmd = &cobra.Command{ |
| 31 | + Use: "reset", |
| 32 | + Short: "Revert the mix to a good state", |
| 33 | + Long: `Revert the mix to a good state in case of a build |
| 34 | + failure or in case the user wants to roll back to a previous |
| 35 | + version`, |
| 36 | + Run: runReset, |
| 37 | +} |
| 38 | + |
| 39 | +type resetFlags struct { |
| 40 | + toVersion int32 |
| 41 | + clean bool |
| 42 | +} |
| 43 | + |
| 44 | +var resetCmdFlags resetFlags |
| 45 | + |
| 46 | +func init() { |
| 47 | + RootCmd.AddCommand(resetCmd) |
| 48 | + |
| 49 | + resetCmd.Flags().Int32Var(&resetCmdFlags.toVersion, "to", -1, "Reset to a specific mix version, default = PREVIOUS_MIX_VERSION") |
| 50 | + resetCmd.Flags().BoolVar(&resetCmdFlags.clean, "clean", false, "Deletes all files with versions bigger than the one provided") |
| 51 | +} |
| 52 | + |
| 53 | +func runReset(cmd *cobra.Command, args []string) { |
| 54 | + b, err := builder.NewFromConfig(configFile) |
| 55 | + if err != nil { |
| 56 | + fail(err) |
| 57 | + } |
| 58 | + |
| 59 | + // assuming mixer.state file has the correct info |
| 60 | + stateMixPreviousMixVersionUint32, err := parseUint32(b.State.Mix.PreviousMixVer) |
| 61 | + if err != nil { |
| 62 | + fail(err) |
| 63 | + } |
| 64 | + |
| 65 | + // if toVersion provided by the user, replace the default previous version |
| 66 | + if resetCmdFlags.toVersion >= 0 { |
| 67 | + b.State.Mix.PreviousMixVer = strconv.Itoa(int(resetCmdFlags.toVersion)) |
| 68 | + stateMixPreviousMixVersionUint32 = uint32(resetCmdFlags.toVersion) |
| 69 | + } |
| 70 | + |
| 71 | + // Make sure FORMAT in mixer.state has the same value as update/www/<previousMixVer>/format |
| 72 | + var format []byte |
| 73 | + filename := filepath.Join(b.Config.Builder.ServerStateDir, "www", b.State.Mix.PreviousMixVer, "format") |
| 74 | + if format, err = ioutil.ReadFile(filename); err != nil { |
| 75 | + fail(err) |
| 76 | + } else { |
| 77 | + if strings.TrimSpace(string(format)) != b.State.Mix.Format { |
| 78 | + b.State.Mix.Format = strings.TrimSpace(string(format)) |
| 79 | + } |
| 80 | + } |
| 81 | + |
| 82 | + // Change upstreamVersion file content to the previous version |
| 83 | + var lastStableMixUpstreamVersion []byte |
| 84 | + filename = filepath.Join(b.Config.Builder.ServerStateDir, "www", b.State.Mix.PreviousMixVer, "upstreamver") |
| 85 | + if lastStableMixUpstreamVersion, err = ioutil.ReadFile(filename); err != nil { |
| 86 | + fail(err) |
| 87 | + } else { |
| 88 | + if strings.TrimSpace(string(lastStableMixUpstreamVersion)) != b.UpstreamVer { |
| 89 | + // Set the upstream version to the previous format's latest version |
| 90 | + b.UpstreamVer = strings.TrimSpace(string(lastStableMixUpstreamVersion)) |
| 91 | + b.UpstreamVerUint32, err = parseUint32(b.UpstreamVer) |
| 92 | + if err != nil { |
| 93 | + fail(errors.Wrapf(err, "Couldn't parse upstream version")) |
| 94 | + } |
| 95 | + vFile := filepath.Join(b.Config.Builder.VersionPath, b.UpstreamVerFile) |
| 96 | + if err = ioutil.WriteFile(vFile, []byte(b.UpstreamVer), 0644); err != nil { |
| 97 | + fail(err) |
| 98 | + } |
| 99 | + } |
| 100 | + } |
| 101 | + |
| 102 | + // Change mixVersion to point to the last good build |
| 103 | + if err := ioutil.WriteFile(filepath.Join(b.Config.Builder.VersionPath, b.MixVerFile), []byte(b.State.Mix.PreviousMixVer), 0644); err != nil { |
| 104 | + fail(err) |
| 105 | + } |
| 106 | + b.MixVer = b.State.Mix.PreviousMixVer |
| 107 | + b.MixVerUint32, err = parseUint32(b.MixVer) |
| 108 | + if err != nil { |
| 109 | + fail(errors.Wrapf(err, "Couldn't parse mixer version")) |
| 110 | + } |
| 111 | + |
| 112 | + // Make sure update/image/LAST_VER points to the last good build |
| 113 | + if err = ioutil.WriteFile(filepath.Join(b.Config.Builder.ServerStateDir, "image", "LAST_VER"), []byte(b.State.Mix.PreviousMixVer), 0644); err != nil { |
| 114 | + failf("Couldn't update LAST_VER file: %s", err) |
| 115 | + } |
| 116 | + |
| 117 | + // update the state.mix file |
| 118 | + err = b.State.Save() |
| 119 | + if err != nil { |
| 120 | + failf("Couldn't update mixer.state file: %s", err) |
| 121 | + } |
| 122 | + |
| 123 | + // update www/version/latest_version file and check if sig file exists, if it does, regenerate the signature |
| 124 | + // update www/version/formatXX/latest file and update the content, if signature exits , regenerate the signature |
| 125 | + var skipSign bool |
| 126 | + latestVerSigFilePath := filepath.Join(b.Config.Builder.ServerStateDir, "www", "version", "latest_version.sig") |
| 127 | + if _, err = ioutil.ReadFile(latestVerSigFilePath); err != nil { |
| 128 | + skipSign = true |
| 129 | + } |
| 130 | + err = b.UpdateLatest(skipSign) |
| 131 | + if err != nil { |
| 132 | + fail(err) |
| 133 | + } |
| 134 | + |
| 135 | + // if clean flag set |
| 136 | + if resetCmdFlags.clean { |
| 137 | + // Remove any folder inside update/image for versions above prevMixVer |
| 138 | + files, err := ioutil.ReadDir(b.Config.Builder.ServerStateDir + "/image") |
| 139 | + if err != nil { |
| 140 | + log.Fatal(err) |
| 141 | + } |
| 142 | + |
| 143 | + for _, f := range files { |
| 144 | + dirNameInt, err := parseUint32(f.Name()) |
| 145 | + if err != nil { |
| 146 | + continue |
| 147 | + } |
| 148 | + if dirNameInt > stateMixPreviousMixVersionUint32 { |
| 149 | + err := os.RemoveAll(b.Config.Builder.ServerStateDir + "/image/" + f.Name()) |
| 150 | + if err != nil { |
| 151 | + continue |
| 152 | + } |
| 153 | + } |
| 154 | + } |
| 155 | + |
| 156 | + // Remove any folder inside update/www for versions above prevMixVer |
| 157 | + files, err = ioutil.ReadDir(b.Config.Builder.ServerStateDir + "/www") |
| 158 | + if err != nil { |
| 159 | + log.Fatal(err) |
| 160 | + } |
| 161 | + |
| 162 | + for _, f := range files { |
| 163 | + dirNameInt, err := parseUint32(f.Name()) |
| 164 | + if err != nil { |
| 165 | + continue |
| 166 | + } |
| 167 | + if dirNameInt > stateMixPreviousMixVersionUint32 { |
| 168 | + err := os.RemoveAll(b.Config.Builder.ServerStateDir + "/www/" + f.Name()) |
| 169 | + if err != nil { |
| 170 | + continue |
| 171 | + } |
| 172 | + } |
| 173 | + } |
| 174 | + |
| 175 | + // Remove any folder inside update/www/version/ for version above prevStableVersion |
| 176 | + files, err = ioutil.ReadDir(b.Config.Builder.ServerStateDir + "/www/version") |
| 177 | + if err != nil { |
| 178 | + log.Fatal(err) |
| 179 | + } |
| 180 | + // iterate over all the formats folder |
| 181 | + for _, f := range files { |
| 182 | + // read the latest file and extract the version |
| 183 | + var version []byte |
| 184 | + if version, err = ioutil.ReadFile(b.Config.Builder.ServerStateDir + "/www/version/" + f.Name() + "/latest"); err != nil { |
| 185 | + continue |
| 186 | + } |
| 187 | + versionInt, err := parseUint32(strings.TrimSpace(string(version))) |
| 188 | + if err != nil { |
| 189 | + continue |
| 190 | + } |
| 191 | + // if version > previousMixVersion |
| 192 | + if versionInt > stateMixPreviousMixVersionUint32 { |
| 193 | + err := os.RemoveAll(b.Config.Builder.ServerStateDir + "/www/version/" + f.Name()) |
| 194 | + if err != nil { |
| 195 | + continue |
| 196 | + } |
| 197 | + } |
| 198 | + } |
| 199 | + } |
| 200 | +} |
| 201 | + |
0 commit comments