// ValidateToolsMetadata attempts to load tools metadata for the specified cloud attributes and returns
// any tools versions found, or an error if the metadata could not be loaded.
func ValidateToolsMetadata(params *ToolsMetadataLookupParams) ([]string, *simplestreams.ResolveInfo, error) {
if len(params.Architectures) == 0 {
return nil, nil, fmt.Errorf("required parameter arches not specified")
}
if len(params.Sources) == 0 {
return nil, nil, fmt.Errorf("required parameter sources not specified")
}
if params.Version == "" && params.Major == 0 {
params.Version = version.Current.Number.String()
}
var toolsConstraint *ToolsConstraint
if params.Version == "" {
toolsConstraint = NewGeneralToolsConstraint(params.Major, params.Minor, false, simplestreams.LookupParams{
CloudSpec: simplestreams.CloudSpec{
Region: params.Region,
Endpoint: params.Endpoint,
},
Series: []string{params.Series},
Arches: params.Architectures,
})
} else {
versNum, err := version.Parse(params.Version)
if err != nil {
return nil, nil, err
}
toolsConstraint = NewVersionedToolsConstraint(versNum, simplestreams.LookupParams{
CloudSpec: simplestreams.CloudSpec{
Region: params.Region,
Endpoint: params.Endpoint,
},
Series: []string{params.Series},
Arches: params.Architectures,
})
}
matchingTools, resolveInfo, err := Fetch(params.Sources, simplestreams.DefaultIndexPath, toolsConstraint, false)
if err != nil {
return nil, resolveInfo, err
}
if len(matchingTools) == 0 {
return nil, resolveInfo, fmt.Errorf("no matching tools found for constraint %+v", toolsConstraint)
}
versions := make([]string, len(matchingTools))
for i, tm := range matchingTools {
vers := version.Binary{
Number: version.MustParse(tm.Version),
Series: tm.Release,
Arch: tm.Arch,
}
versions[i] = vers.String()
}
return versions, resolveInfo, nil
}
func uploadFakeToolsVersion(stor storage.Storage, vers version.Binary) (*coretools.Tools, error) {
logger.Infof("uploading FAKE tools %s", vers)
tgz, checksum := coretesting.TarGz(
coretesting.NewTarFile("jujud", 0777, "jujud contents "+vers.String()))
size := int64(len(tgz))
name := envtools.StorageName(vers)
if err := stor.Put(name, bytes.NewReader(tgz), size); err != nil {
return nil, err
}
url, err := stor.URL(name)
if err != nil {
return nil, err
}
return &coretools.Tools{URL: url, Version: vers, Size: size, SHA256: checksum}, nil
}
// SharedToolsDir returns the directory that is used to
// store binaries for the given version of the juju tools
// within the dataDir directory.
func SharedToolsDir(dataDir string, vers version.Binary) string {
return path.Join(dataDir, "tools", vers.String())
}
// StorageName returns the name that is used to store and retrieve the
// given version of the juju tools.
func StorageName(vers version.Binary) string {
return toolPrefix + vers.String() + toolSuffix
}