class DiskSpace extend ActionView::Helpers::NumberHelper DISK_SPACE_STATS_CACHE_KEY = 'disk_space_stats'.freeze DISK_SPACE_STATS_UPDATED_CACHE_KEY = 'disk_space_stats_updated'.freeze def self.uploads_used_bytes # used(uploads_path) # temporary (on our internal setup its just too slow to iterate) Upload.sum(:filesize).to_i end def self.uploads_free_bytes free(uploads_path) end def self.backups_used_bytes used(backups_path) end def self.backups_free_bytes free(backups_path) end def self.backups_path Backup.base_directory end def self.uploads_path "#{Rails.root}/public/uploads/#{RailsMultisite::ConnectionManagement.current_db}" end def self.stats { uploads_used: number_to_human_size(uploads_used_bytes), uploads_free: number_to_human_size(uploads_free_bytes), backups_used: number_to_human_size(backups_used_bytes), backups_free: number_to_human_size(backups_free_bytes) } end def self.reset_cached_stats Discourse.cache.delete(DISK_SPACE_STATS_UPDATED_CACHE_KEY) Discourse.cache.delete(DISK_SPACE_STATS_CACHE_KEY) end def self.cached_stats stats = Discourse.cache.read(DISK_SPACE_STATS_CACHE_KEY) updated_at = Discourse.cache.read(DISK_SPACE_STATS_UPDATED_CACHE_KEY) unless updated_at && (Time.now.to_i - updated_at.to_i) < 30.minutes Jobs.enqueue(:update_disk_space) end if stats JSON.parse(stats) end end protected def self.free(path) `df -Pk #{path} | awk 'NR==2 {print $4;}'`.to_i * 1024 end def self.used(path) `du -s #{path}`.to_i * 1024 end end