In theory, couldn’t you then compile a Rails app into a one-liner? (Seems the max line length varies, but is at least hundreds of thousands of characters in most OSes)
You could, but it would be stupid to do so if it wasn't a trivial app, since nobody wants to support something like that, even if it's lifetime is measured in minutes or hours. It's a one-liner, just a pointless one.
That said, if rails has a super simple default startup that could serve a file, then it might be useful to start that as a one liner in select circumstances.
Re:Ruby One-Liners
by vinceguidry on Saturday September 14, 2019 @07:58AM
(#20970245)
Rails has generators for that. Invaluable for greenfielding projects in an iterative manner. Blow everything away and recreate with a single command.
nobody wants to support weird looking one-liners either
Sure, but then you could refactor most programs into "one line" (similar to what another commenter pointed out). I was expecting more of a functional piping or chaining style as opposed to distinct statements and defining local variables.
For example, just yesterday it was to parse a log, grep for specific lines, pull out a time and a number per line, display name, number, and some number of characters afterwards as a quick abnd dirty graph of the magnitude to make it obvious if there were major outliers and to try to see trends over time. Still a one-liner.