|
| 1 | +// +build release |
| 2 | + |
| 3 | +package main |
| 4 | + |
| 5 | +import ( |
| 6 | + "fmt" |
| 7 | + "log" |
| 8 | + "os" |
| 9 | + "strconv" |
| 10 | + "strings" |
| 11 | + |
| 12 | + "github.com/blang/semver" |
| 13 | + "github.com/dave/jennifer/jen" |
| 14 | + |
| 15 | + "github.com/weaveworks/pctl/pkg/version" |
| 16 | +) |
| 17 | + |
| 18 | +const versionFilename = "pkg/version/release.go" |
| 19 | +const defaultPreReleaseID = "dev" |
| 20 | +const defaultReleaseCandidate = "rc.0" |
| 21 | + |
| 22 | +func main() { |
| 23 | + if len(os.Args) < 2 { |
| 24 | + log.Fatal("missing argument") |
| 25 | + } |
| 26 | + |
| 27 | + command := os.Args[1] |
| 28 | + |
| 29 | + var newVersion, newPreRelease string |
| 30 | + switch command { |
| 31 | + case "release": |
| 32 | + newVersion, newPreRelease = prepareRelease() |
| 33 | + case "release-candidate": |
| 34 | + newVersion, newPreRelease = prepareReleaseCandidate() |
| 35 | + case "development": |
| 36 | + newVersion, newPreRelease = nextDevelopmentIteration() |
| 37 | + case "full-version": |
| 38 | + fmt.Println(version.GetVersion()) |
| 39 | + return |
| 40 | + case "print-version": |
| 41 | + // Print simplified version X.Y.Z |
| 42 | + fmt.Println(version.Version) |
| 43 | + return |
| 44 | + case "print-major-minor-version": |
| 45 | + fmt.Println(printMajorMinor()) |
| 46 | + return |
| 47 | + default: |
| 48 | + log.Fatalf("unknown option %q. Expected 'release', 'release-candidate', 'development', 'print-version' or 'print-major-minor-version'", command) |
| 49 | + } |
| 50 | + |
| 51 | + if err := writeVersionToFile(newVersion, newPreRelease, versionFilename); err != nil { |
| 52 | + log.Fatalf("unable to write file: %s", err.Error()) |
| 53 | + } |
| 54 | + |
| 55 | + version.Version = newVersion |
| 56 | + version.PreReleaseID = newPreRelease |
| 57 | + fmt.Println(version.GetVersion()) |
| 58 | +} |
| 59 | + |
| 60 | +func prepareRelease() (string, string) { |
| 61 | + return version.Version, "" |
| 62 | +} |
| 63 | + |
| 64 | +func prepareReleaseCandidate() (string, string) { |
| 65 | + if strings.HasPrefix(version.PreReleaseID, "rc.") { |
| 66 | + // Next RC |
| 67 | + rcNumber, err := strconv.Atoi(strings.TrimPrefix(version.PreReleaseID, "rc.")) |
| 68 | + if err != nil { |
| 69 | + log.Fatalf("cannot parse rc version from pre-release id %s", version.PreReleaseID) |
| 70 | + } |
| 71 | + newRC := rcNumber + 1 |
| 72 | + return version.Version, fmt.Sprintf("rc.%d", newRC) |
| 73 | + } |
| 74 | + return version.Version, defaultReleaseCandidate |
| 75 | +} |
| 76 | + |
| 77 | +func printMajorMinor() string { |
| 78 | + ver := semver.MustParse(version.Version) |
| 79 | + return fmt.Sprintf("%v.%v", ver.Major, ver.Minor) |
| 80 | +} |
| 81 | + |
| 82 | +func nextDevelopmentIteration() (string, string) { |
| 83 | + ver := semver.MustParse(version.Version) |
| 84 | + ver.Minor++ |
| 85 | + return ver.String(), defaultPreReleaseID |
| 86 | +} |
| 87 | + |
| 88 | +func writeVersionToFile(version, preReleaseID, fileName string) error { |
| 89 | + f := jen.NewFilePath("pkg/version") |
| 90 | + |
| 91 | + f.Comment("This file was generated by release_generate.go; DO NOT EDIT.") |
| 92 | + f.Line() |
| 93 | + |
| 94 | + f.Comment("Version is the version number in semver format X.Y.Z") |
| 95 | + f.Var().Id("Version").Op("=").Lit(version) |
| 96 | + |
| 97 | + f.Comment("PreReleaseID can be empty for releases, \"rc.X\" for release candidates and \"dev\" for snapshots") |
| 98 | + f.Var().Id("PreReleaseID").Op("=").Lit(preReleaseID) |
| 99 | + |
| 100 | + f.Comment("gitCommit is the short commit hash. It will be set by the linker.") |
| 101 | + f.Var().Id("gitCommit").Op("=").Lit("") |
| 102 | + |
| 103 | + f.Comment("buildDate is the time of the build with format yyyy-mm-ddThh:mm:ssZ. It will be set by the linker.") |
| 104 | + f.Var().Id("buildDate").Op("=").Lit("") |
| 105 | + |
| 106 | + if err := f.Save(fileName); err != nil { |
| 107 | + return err |
| 108 | + } |
| 109 | + return nil |
| 110 | +} |
0 commit comments