| // Copyright 2016 Google Inc. All Rights Reserved. |
| // |
| // 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. |
| |
| //go:generate ./update_version.sh |
| |
| // Package version contains version information for Google Cloud Client |
| // Libraries for Go, as reported in request headers. |
| package version |
| |
| import ( |
| "runtime" |
| "strings" |
| "unicode" |
| ) |
| |
| // Repo is the current version of the client libraries in this |
| // repo. It should be a date in YYYYMMDD format. |
| const Repo = "20170928" |
| |
| // Go returns the Go runtime version. The returned string |
| // has no whitespace. |
| func Go() string { |
| return goVersion |
| } |
| |
| var goVersion = goVer(runtime.Version()) |
| |
| const develPrefix = "devel +" |
| |
| func goVer(s string) string { |
| if strings.HasPrefix(s, develPrefix) { |
| s = s[len(develPrefix):] |
| if p := strings.IndexFunc(s, unicode.IsSpace); p >= 0 { |
| s = s[:p] |
| } |
| return s |
| } |
| |
| if strings.HasPrefix(s, "go1") { |
| s = s[2:] |
| var prerelease string |
| if p := strings.IndexFunc(s, notSemverRune); p >= 0 { |
| s, prerelease = s[:p], s[p:] |
| } |
| if strings.HasSuffix(s, ".") { |
| s += "0" |
| } else if strings.Count(s, ".") < 2 { |
| s += ".0" |
| } |
| if prerelease != "" { |
| s += "-" + prerelease |
| } |
| return s |
| } |
| return "" |
| } |
| |
| func notSemverRune(r rune) bool { |
| return strings.IndexRune("0123456789.", r) < 0 |
| } |