[pacman-dev] [PATCH 2/2] Append '-$arch' to 'installed' array in .BUILDINFO

[Eli Schwartz]

On 03/17/2018 05:24 PM, Robin Broda wrote:
> This patch incurs a **severe** performance degradation when generating
> the .BUILDINFO file, likely due to frequent usage of `pacman -Qi`
> and `grep -E`. I haven't found a faster way to gather this information.

I'm not sure we can, without adding a dependency on e.g. expac. Which
would admittedly be a lot cleaner and we could also remove the existing
sed command.

The downside is depending on a pretty specific tool. The plus side is
ensuring that everyone has a pretty cool tool installed by default...

pacman itself does not really give output meant for parsing.

...

The alternative, reproduction-wise, is of course to brute force by
trying to access both "x86_64" and "any" (it would suffice to check the
return code of curl -IfLls -o /dev/null $url). I don't think this is a
terrible option, unless Allan is willing to accept expac-based patches...

-- 
Eli Schwartz
Bug Wrangler and Trusted User

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