bakage executable.

[dougransom]

I submitted this before looking at old PRs and found #34. So probably you will reject that PR. I did have trouble figuring out how to run bakage and (#65) is what I came up with.

I don't understand how to make bakage.pl executable on my system. Currently linux, someday windows.

I would suggest bakage (at least the bakage command) be installed outside of a project rather than in the project as instructed, so we can bootstrap a project with just .bakage. .bakage can upload a newer version into the project.

[dougransom]

Also would life be simpler if backage installed backage.sh and backage.ps1 (powershell) to simply launch scryer rather than making backage.pl an executable? Are prolog files normally made executable? Does it work on other platforms scryer is intended to run on?

[bakaq]

You have really good points here, here's the gist:

1. Bakage currently doesn't support Windows, just Unixes. We want to change this soon as part of Do an actual Rust binary instead of mountains of POSIX shell #41. We definitely don't want to be maintaining multiple shell scripts for different platforms, because currently they aren't used just for bootstrapping, but also for a lot of core functionality. Rust solves this and it's also cross-platform.
2. bakage.pl currently needs to be in the project directory because it's both the package manager and the package loader (that's why you need to :- use_module(bakage).). We want to change this soon as part of Transpilation approach #32, maybe with an intermediate step of splitting the package manager and the package loader into different files.