// PrepareRenderData constructs new renderdata based on pipeline config + latest BOSH deployments data
func PrepareRenderData(config *config.PipelinesConfig, db data.DeploymentsPerBOSH, filterByTag string) *RenderData {
tiers := make([]*Tier, len(config.Tiers))
filterTags := filterTagsForReleaseNames(db.ReleaseNames())
renderdata := &RenderData{
Config: config,
FilterTags: filterTags,
Tiers: tiers,
}
for tierIndex, configTier := range config.Tiers {
slots := make([]*Slot, len(configTier.Slots))
tiers[tierIndex] = &Tier{
Name: configTier.Name,
Slots: slots,
}
for slotIndex, configSlot := range configTier.Slots {
deployments := renderdata.DiscoverDeploymentsForSlot(db, configTier, configSlot, filterByTag)
slots[slotIndex] = &Slot{
Deployments: deployments,
}
}
}
return renderdata
}
