func assertSourceContents(c *gc.C, source simplestreams.DataSource, filename string, content []byte) {
rc, _, err := source.Fetch(filename)
c.Assert(err, gc.IsNil)
defer rc.Close()
retrieved, err := ioutil.ReadAll(rc)
c.Assert(err, gc.IsNil)
c.Assert(retrieved, gc.DeepEquals, content)
}
// appendMatchingTools updates matchingTools with tools metadata records from tools which belong to the
// specified series. If a tools record already exists in matchingTools, it is not overwritten.
func appendMatchingTools(source simplestreams.DataSource, matchingTools []interface{},
tools map[string]interface{}, cons simplestreams.LookupConstraint) []interface{} {
toolsMap := make(map[version.Binary]*ToolsMetadata, len(matchingTools))
for _, val := range matchingTools {
tm := val.(*ToolsMetadata)
toolsMap[tm.binary()] = tm
}
for _, val := range tools {
tm := val.(*ToolsMetadata)
if !set.NewStrings(cons.Params().Series...).Contains(tm.Release) {
continue
}
if toolsConstraint, ok := cons.(*ToolsConstraint); ok {
tmNumber := version.MustParse(tm.Version)
if toolsConstraint.Version == version.Zero {
if toolsConstraint.Released && tmNumber.IsDev() {
continue
}
if toolsConstraint.MajorVersion >= 0 && toolsConstraint.MajorVersion != tmNumber.Major {
continue
}
if toolsConstraint.MinorVersion >= 0 && toolsConstraint.MinorVersion != tmNumber.Minor {
continue
}
} else {
if toolsConstraint.Version != tmNumber {
continue
}
}
}
if _, ok := toolsMap[tm.binary()]; !ok {
tm.FullPath, _ = source.URL(tm.Path)
matchingTools = append(matchingTools, tm)
}
}
return matchingTools
}