| /* |
| Copyright 2016 The Kubernetes Authors. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package types |
| |
| import ( |
| "fmt" |
| "regexp" |
| "sort" |
| "strings" |
| |
| "k8s.io/gengo/namer" |
| ) |
| |
| // ToGroupVersion turns "group/version" string into a GroupVersion struct. It reports error |
| // if it cannot parse the string. |
| func ToGroupVersion(gv string) (GroupVersion, error) { |
| // this can be the internal version for the legacy kube types |
| // TODO once we've cleared the last uses as strings, this special case should be removed. |
| if (len(gv) == 0) || (gv == "/") { |
| return GroupVersion{}, nil |
| } |
| |
| switch strings.Count(gv, "/") { |
| case 0: |
| return GroupVersion{Group(gv), ""}, nil |
| case 1: |
| i := strings.Index(gv, "/") |
| return GroupVersion{Group(gv[:i]), Version(gv[i+1:])}, nil |
| default: |
| return GroupVersion{}, fmt.Errorf("unexpected GroupVersion string: %v", gv) |
| } |
| } |
| |
| type sortableSliceOfVersions []string |
| |
| func (a sortableSliceOfVersions) Len() int { return len(a) } |
| func (a sortableSliceOfVersions) Swap(i, j int) { a[i], a[j] = a[j], a[i] } |
| func (a sortableSliceOfVersions) Less(i, j int) bool { |
| vi, vj := strings.TrimLeft(a[i], "v"), strings.TrimLeft(a[j], "v") |
| major := regexp.MustCompile("^[0-9]+") |
| viMajor, vjMajor := major.FindString(vi), major.FindString(vj) |
| viRemaining, vjRemaining := strings.TrimLeft(vi, viMajor), strings.TrimLeft(vj, vjMajor) |
| switch { |
| case len(viRemaining) == 0 && len(vjRemaining) == 0: |
| return viMajor < vjMajor |
| case len(viRemaining) == 0 && len(vjRemaining) != 0: |
| // stable version is greater than unstable version |
| return false |
| case len(viRemaining) != 0 && len(vjRemaining) == 0: |
| // stable version is greater than unstable version |
| return true |
| } |
| // neither are stable versions |
| if viMajor != vjMajor { |
| return viMajor < vjMajor |
| } |
| // assuming at most we have one alpha or one beta version, so if vi contains "alpha", it's the lesser one. |
| return strings.Contains(viRemaining, "alpha") |
| } |
| |
| // Determine the default version among versions. If a user calls a group client |
| // without specifying the version (e.g., c.Core(), instead of c.CoreV1()), the |
| // default version will be returned. |
| func defaultVersion(versions []PackageVersion) Version { |
| var versionStrings []string |
| for _, version := range versions { |
| versionStrings = append(versionStrings, version.Version.String()) |
| } |
| sort.Sort(sortableSliceOfVersions(versionStrings)) |
| return Version(versionStrings[len(versionStrings)-1]) |
| } |
| |
| // ToGroupVersionInfo is a helper function used by generators for groups. |
| func ToGroupVersionInfo(groups []GroupVersions, groupGoNames map[GroupVersion]string) []GroupVersionInfo { |
| var groupVersionPackages []GroupVersionInfo |
| for _, group := range groups { |
| defaultVersion := defaultVersion(group.Versions) |
| for _, version := range group.Versions { |
| groupGoName := groupGoNames[GroupVersion{Group: group.Group, Version: version.Version}] |
| groupVersionPackages = append(groupVersionPackages, GroupVersionInfo{ |
| Group: Group(namer.IC(group.Group.NonEmpty())), |
| Version: Version(namer.IC(version.Version.String())), |
| PackageAlias: strings.ToLower(groupGoName + version.Version.NonEmpty()), |
| IsDefaultVersion: version.Version == defaultVersion && version.Version != "", |
| GroupGoName: groupGoName, |
| LowerCaseGroupGoName: namer.IL(groupGoName), |
| }) |
| } |
| } |
| return groupVersionPackages |
| } |
| |
| func ToGroupInstallPackages(groups []GroupVersions, groupGoNames map[GroupVersion]string) []GroupInstallPackage { |
| var groupInstallPackages []GroupInstallPackage |
| for _, group := range groups { |
| defaultVersion := defaultVersion(group.Versions) |
| groupGoName := groupGoNames[GroupVersion{Group: group.Group, Version: defaultVersion}] |
| groupInstallPackages = append(groupInstallPackages, GroupInstallPackage{ |
| Group: Group(namer.IC(group.Group.NonEmpty())), |
| InstallPackageAlias: strings.ToLower(groupGoName), |
| }) |
| } |
| return groupInstallPackages |
| } |
| |
| // NormalizeGroupVersion calls normalizes the GroupVersion. |
| //func NormalizeGroupVersion(gv GroupVersion) GroupVersion { |
| // return GroupVersion{Group: gv.Group.NonEmpty(), Version: gv.Version, NonEmptyVersion: normalization.Version(gv.Version)} |
| //} |