func getInstalledVersions(pattern string) []dockerversion.Version {
searchPath := filepath.Join(getVersionsDir(), pattern)
versions, _ := filepath.Glob(searchPath)
var results []dockerversion.Version
for _, versionDir := range versions {
version := dockerversion.Parse(filepath.Base(versionDir))
if version.IsExperimental() {
experimentalDockerPath := filepath.Join(versionDir, getBinaryName())
experimentalVersion, err := getDockerVersion(experimentalDockerPath, true)
if err != nil {
writeDebug("Unable to get version of installed experimental version at %s.\n%s", versionDir, err)
continue
}
version.SemVer = experimentalVersion.SemVer
}
results = append(results, version)
}
if glob.Glob(pattern, dockerversion.SystemAlias) {
systemVersion, err := getSystemDockerVersion()
if err == nil {
results = append(results, systemVersion)
}
}
dockerversion.Sort(results)
return results
}
func getAvailableVersions(pattern string) []dockerversion.Version {
gh := buildGithubClient()
options := &github.ListOptions{PerPage: 100}
var allReleases []github.RepositoryRelease
for {
releases, response, err := gh.Repositories.ListReleases("docker", "docker", options)
if err != nil {
warnWhenRateLimitExceeded(err, response)
die("Unable to retrieve list of Docker releases from GitHub", err, retCodeRuntimeError)
}
allReleases = append(allReleases, releases...)
if response.StatusCode != 200 {
die("Unable to retrieve list of Docker releases from GitHub (Status %s).", nil, retCodeRuntimeError, response.StatusCode)
}
if response.NextPage == 0 {
break
}
options.Page = response.NextPage
}
versionRegex := regexp.MustCompile(`^v([1-9]+\.\d+\.\d+)$`)
patternRegex, err := regexp.Compile(pattern)
if err != nil {
die("Invalid pattern.", err, retCodeInvalidOperation)
}
var results []dockerversion.Version
for _, release := range allReleases {
version := *release.Name
match := versionRegex.FindStringSubmatch(version)
if len(match) > 1 && patternRegex.MatchString(version) {
results = append(results, dockerversion.Parse(match[1]))
}
}
dockerversion.Sort(results)
return results
}