Longbow can make use of a .pbi index file, which provides information as to the amount of data in a PacBio BAM file and enables random access over its contents. This facilitates accurate progress reporting and helps in certain commands to permit specific reads to be fetched and processed without processing the entire file (e.g. longbow inspect, useful for inspecting model annotations). The .pbi file is optional; if not present at the path guessed or not explicitly supplied on the command-line, Longbow will simply process records linearly, and will not report the expected time to completion. For example:
longbow converter
These lights aren't perfect, of course. They're much more expensive than a supermarket flashlight. And, realistically, most regular flashlight users don't often, or ever, buy new bulbs, so they don't care much how long they last. And super-bright LED lights don't have great battery life, either; they use DC-to-DC converters to keep the lamp brightness pretty even as the battery goes flat, but that means you only get maybe one and a half hours at close to full brightness, then typically many more hours of better-than-nothing light. 2ff7e9595c