module NoirOutputFiles

Overview

Process-wide registry of -o file handles, one per output path.

A standalone type, deliberately, rather than a @@ on OutputBuilder: Crystal gives every subclass its own copy of an inherited class variable. The @@prepared_output_files set this replaces therefore tracked "already truncated?" separately per builder class, so the second builder to write a given run's -o file re-opened it in "w" and erased what the first had put there. In diff mode that silently ate the ✚ Added (n) section header: OutputBuilderDiff writes the header, then the OutputBuilderCommon it delegates to truncates the file out from under it. One registry, keyed by path only, gives every builder in the run the same handle — truncate once on open, append from then on.

Defined in:

models/output_builder.cr

Class Method Summary

• .handle(path : String) : File

  Opened lazily so a builder constructed with an -o path but never written to (the format never emits, or the run has no results) doesn't leave an empty file behind.

• .reset : Nil

  Specs write to a tempname, read it back, then delete it; without this a later example reusing a path would keep writing to the stale handle.

Class Method Detail