I have replaced the old install and dependancy algorithms with a new
design that attemps to be more pacaur like. Mostly in minimizing user
input. Ask every thing first then do everything with no need for more
user input.
It is not yet fully complete but is finished enough so that it works,
should not fail in most cases and provides a base for more contributors
to help address the existing problems.
The new install chain is as follows:
Source info about the provided targets
Fetch a list of all dependancies needed to install targets
I put alot of effort into fetching the dependancy tree
while making the least amount of aur requests as
possible. I'm actually very happy with how it turned out
and yay wil now resolve dependancies noticably faster
than pacaur when there are many aur dependancies.
Install repo targets by passing to pacman
Print dependancy tree and ask to confirm
Ask to clean build if directory already exists
Download all pkgbuilds
Ask to edit all pkgbuilds
Ask to continue with the install
Download the sources for each packagebuild
Build and install every package
using -s to get repo deps and -i to install
Ask to remove make dependancies
There are still a lot of things that need to be done for a fully working
system. Here are the problems I found with this system, either new or
existing:
Formating
I am not so good at formatting myself, I thought best to
leave it until last so I could get feedback on how it
should look and help implementing it.
Dependancy tree
The dependancy tree is usually correct although I have
noticed times where it doesnt detect all the
dependancies that it should. I have only noticed this
when there are circular dependancies so i think this
might be the cause. It's not a big deal currently
because makepkg -i installed repo deps for us which
handles the repo deps for us and will get the correct
ones. So yay might not list all the dependancies. but
they will get installed so I consider this a visual bug.
I have yet to see any circular dependancies in the AUR
so I can not say what will happend but I#m guessing that
it will break.
Versioned packages/dependencies
Targets and dependancies with version constriants such
as 'linux>=4.1' will not be checked on the aur side of
things but will be checked on the repo side.
Ignorepkg/Ignoregroup
Currently I do not handle this in any way but it
shouldn't be too hard to implement.
Conflict checking
This is not currently implemented either
Split Paclages
Split packages are not Handles properly. If we only
specify one package so install from a split package
makepkg -i ends up installing them all anyway. If we
specify more than one (n) package it will actually build the
package base n times and reinstall every split package
n times.
Makepkg
To get things working I decided to keep using the
makepkg -i method. I plan to eventually replace this
with a pacman -U based method. This should allow passing
args such as --dbpath and --config to aur packages
aswell as help solve some problems such as the split
packages.
Clean build
I plan to improve the clean build choice to be a little
more smart and instead of check if the directory exists,
check if the package is already build and if so skip the
build all together.
This bug was caused by me not thinking when passing flags to aurInstall.
Currently a bunch of functions take an array of flags but we don't really
use them any more after the argument parsing update. These should be
refactored out eventually but I'm holding off until I'm more sure about
how these functions should look.
This allows us to use command line options such as '--root' and '-b' when
performing operations that use out alom handle.
Sadly this does not apply to passToMakepkg which will ignore options
such as '--root' and because we pass '-i' to makepkg it installs for us
using the default options.
Currently I have not planned a solution for this but one which I thought
of but not looked into is. Always call makepkg without arguments (except
from '--noconfirm' and others which might still be needed) and manage
the dependancies and post install outselves.
Another option might be to use makepkg's $PACMAN enviroment variable and
redirect the pacman calls to yay. Although I am unsure about both
stratergys they are just my current thoughts.
Also while editing the flow of cmd.go, I managed to refactor away all
os.Exit calls apart from the very last so it should be more clear as to
where the program exits.
