Before beginning these grand timesink chronicles, allow me to review my historical use of Gentoo that helps explain this project’s existence. Note that this narrative pertains only to my experience and opinions.
I first installed Gentoo around 2005, near the probable peak of outward interest in the project. At this point no EAPIs existed, portage was the only choice, and the project felt exciting probably due to the level of interest at the time. From an outsider’s perspective, portage was doing an adequate job since core counts were low for consumer machines. Therefore, parallelization wasn’t overly important and improving the package tree was generally a higher priority.
In retrospect, the project should have capitalized more off the interest wave to explore other ideas before, in effect, chaining itself to bash for life. While I understand the advantages for selecting bash as a base, the drawbacks are quite large from a developer’s perspective as bash is highly focused on two things, running scripts and interactive shell usage. Its underlying structure leaves a lot to be desired when trying to force it outside those bounds.
Fast forward about 5 years to 2010 when EAPI 3 came out and two new package managers (pkgcore and paludis) joined portage, evolving as part of the specification process and proving its existence in aiding new development. Having tried both, I was impressed by the speed of pkgcore in relation to my experience with portage, both being mainly written in python. The main reasons for this runtime difference come from pkgcore’s more streamlined restriction framework, overall cleaner design, and ebuild daemon functionality that avoided re-execing bash as much as possible. Sadly enough, as more features made it into new EAPIs, pkgcore slowly fell behind mostly due to getting bus-factored into near stasis.
As could be discovered when trying out the alternative package managers, portage was starting to lag behind in a number of areas that it still suffers from including overall design and maintainability. While a number of features and performance improvements did find their way from pkgcore to portage around this time, in my opinion, Gentoo as a project should have thrown more support behind moving to or subsuming pkgcore because it would quickly become a nontrivial task in later years.
2015 was about the time I started getting involved in pkgcore-related development. For my part, most of my work on pkgcore and its related tools was due to curiosity, interest, and a hesitancy to let the project entirely die. Over the next few years I would drag pkgcore along, keeping it barely alive, culminating in rewriting pkgcheck (the pkgcore-based ebuild linter) nearly from scratch in an effort to parallelize it as much as its python-based nature allowed.
During this time, it became apparent to me that Gentoo as a development community often felt directionless and highly change averse. Democratizing leadership while keeping the foundation separate lead to weak, overarching vision and therefore a rudderless appearance for the project. Personally I think the council should actively define priorities for the project and even use funding where appropriate to aid in that effort rather than its mainly reactionary and ratification style meetings.
By 2020, it had become clear to me that pkgcore and its related tools were evolutionary dead ends. I felt enough work had been done to prove their worth and underlying design was better than portage in a number of ways, but that wasn’t able to grow interest to a level where moving on from portage was feasible. In order to have had a better future, more focus should have been placed on merging pkgcore’s design with portage during the 2010 era when it was potentially feasible to do, by 2020 it was all but impossible.
With that in mind, I passed on maintenance to those with a vested interest in the project mainly due to Gentoo beginning to seriously use pkgcheck for CI against the main tree after the parallelization work was merged. I imagine the project will continue on life-support style maintenance as long as its alternative focuses on being an interactive commit tool, performing shockingly terrible at linting runs on any significant scale.
Regarding my decision to drop pkgcore, in essence I never agreed with much of the design and didn’t want to rewrite it as I had been forced to for pkgcheck. For example, continuing in portage’s footsteps using an interpreted language like python for the core package manager felt like a poor long-term choice. At the time the pkgcore fork occurred, it probably made sense due to language availability and communal knowledge, but that’s not the case anymore.
Developing in an “easier”, more established language like python has the usual upsides such as portability, fast prototyping, shallower learning curve, larger developer pool, etc; however, it also comes with the regular downsides many of which directly conflict with goals I’ve imagined such as language bindings support, embeddable bash, and a design supporting embarrassingly parallel workloads without having to resort to multiprocess pools and other types of GIL avoidance hacks.
In any case, if I was going to start afresh why not waste the most time possible reaching towards dreams I used to blunt the endless dreary work spent untangling python spaghetti code. In the probable situation where the dreams fail, they will still have enhanced the opportunity to dive deeper into a language, explore its FFI support, and use it to develop bindings for other languages among other learning prospects. In the end, anything I create will likely be drastically different than any previous project I have found targeting Gentoo.
Having kicked around the idea of rewriting portions of pkgcore in rust since early 2017, the possibility coalesced into reality as the ecosystem grew enough where third party libraries existed to support much of the intended design. For those readers thinking some variation of “What not C?”, “Real programmers use C++”, or perhaps “To do this right you should use Zig/Nim/…” see a brief discussion of the language decision in the FAQ.
Pkgcraft’s goals leave many difficult challenges ahead, e.g. merging bash’s C support with rust. Future posts will detail that work and other challenges that pkgcraft’s approach inevitably leads to. Whether it will surpass pkgcore’s efforts or fade away as an ephemeral dream remains to be seen, but hopefully these chronicles entertain, inform, or inspire others to support this timesink and strive towards their own.