src/run/bend.bend relies on unsafe/foreign

raw source on the hub · import 0x886223f5c47e4983fe57d887c034bc7f/src/run/bend.bend as Bend

run/bend: which bend is on the PATH, asked the way that bend will answer.

bend has had the question two ways round. Up to 2.0.16 it is bend --version and bend version is "no such file: version"; from 2.0.18 on it is bend version and the flag is "unknown option --version". Either way the spelling it does not know exits non-zero, which looks exactly like a bend that is not installed — so a caller that asks only one way cannot tell a missing bend from an old one, and ez has two callers that need the banner: doctor's report and the toolchain part of a cache key. Asking both ways, current spelling first, is the whole of this module.

2 imports

import Base
import 0xabe575924687afad4cee1a2c1194d639/main.bend as R

Definitions

def version.older source · line 15 · raw

@ok:Bool -> @out:String -> IO(String)

the older spelling, tried only when the current one was not understood

def version source · line 25 · raw

IO(String)

bend asked which bend it is, as a run's answer: the status line, then the banner. A bend that is not on the PATH fails both spellings, so the status an absent bend answers with is still the one the caller sees.