redub 1.2.16

Redub - Dub Based Build System

Making it faster

Have you ever wondered why dub was slow? I tried solving it, but its codebase was fairly unreadable. After building this project, I've implemented features that dub don't use

• Lazy build project configuration evaluation
• Parallelization on build sorted by dependency
• Fully parallelized build when only link is waiting for dependencies

Philosophy

• Separate build system from package manager.
• Have total backward compatibility on dub for initial versions.
• On initial versions, develop using phobos only
• Make it less stateful.
• Achieve at least 90% of what dub does.
• Isolate each process. This will make easier for adding and future contributors

Achieving it

Legend

• api -> Can be freely be imported from any module
• module -> Needs to be isolated as much as possible from each module. If one needs to communicate with other, a bridge/api may be created after the initial idea

How it works

Here are described the modules which do most of the work if someone wants to contribute.

• buildapi: Defines the contents of build configurations, tree of projects and commons for them
• parsers.json: Parse dub.json into a build configuration
• parsers.automatic: Parse using an automatic parser identification
• cli.dub + app: Parse CLI to get the build root and an initial build configuration
• parsers.environment: Merge environment variables into build configuration
• tree_generators.dub: Output build dependency tree while merging their configurations
• command_generator.automatic: Convert build configuration into compilation flags
• buildapi + building.compile: Transform build tree into dependency order tree
• building.compile: Spawn build processes for the dependencies until it links

Contributor Attracting

• Isolate module as much as possible to attract contributors working on self contained modules which only gets input and returns an output

Starting small

• No need to handle edge cases in the beginning. They may become even separate modules.

A week project

• This project had a small start. I gave one week for doing it, but since it was very succesful on its achievements, I decided to extend a little the deadline for achieving support. Right now, it has been tested with

Working examples

Those projects were fairly tested while building this one

• dub
• glui
• dplug
• arsd-official
• Hipreme Engine

Package manager

• Will be implemented as a hook in the build system. I'm accepting PRs, but I'm not implementing myself.