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#1 2025-11-10 11:27:25
- Lone_Wolf
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- From: Netherlands, Europe
- Registered: 2005-10-04
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CCACHE_NAMESPACE in PKGBUILD ?
Recently I noticed that afrer running a large bisect packages I had built before the bisect didn't benefit from ccache anymore .
I asked for help on ccache github , see https://github.com/ccache/ccache/discus … discussion .
I prefer the namespace method and see 2 methods to implement it :
- create a wrapper for makepkg that includes export CCACHE_NAMESPACE=$PWD
- add export CCACHE_NAMESPACE=$PWD in the body of the PKGBUILD
Most of the packages that would benefit from this are aur packages I maintain .
How do you feel about aur packages that have such an envvar in them ?
Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.
clean chroot building not flexible enough ?
Try clean chroot manager by graysky
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#2 2025-11-12 11:18:39
- Lone_Wolf
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Re: CCACHE_NAMESPACE in PKGBUILD ?
I've thought more about this and now feel a wrapper for makepkg is more flexible and has the advantage of keeping the aur PKGBUILDS independent of my settings.
A case statement should help to clarify what exactly happens.
Aliases/wrappers for manual cleaning will also help.
Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.
clean chroot building not flexible enough ?
Try clean chroot manager by graysky
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#3 2025-11-12 11:52:19
- Allan
- Pacman
- From: Brisbane, AU
- Registered: 2007-06-09
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Re: CCACHE_NAMESPACE in PKGBUILD ?
Your wrapper could probably just be:
alias makepkg='CCACHE_NAMESPACE=$pwd makepkg'or slightly more complex...
alias makepkg='makedir -p cache; CCACHE_NAMESPACE=$pwd/cache makepkg'I don't use ccache so not sure if making a directory is needed.
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#4 2025-11-13 08:35:16
- Lone_Wolf
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- From: Netherlands, Europe
- Registered: 2005-10-04
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Re: CCACHE_NAMESPACE in PKGBUILD ?
I don't use ccache so not sure if making a directory is needed
No, NAMESPACE stores everything in the same location , usually at $XDG_CONFIG_HOME/ccache/
alias makepkg='CCACHE_NAMESPACE=$pwd makepkg'The mechanism used in bash to determinbe whether to pass envvars evades me.
Will CCACHE_NAMESPACE be passed from makepkg to the PKGBUILD and to commands run from within the PKGBUILD ?
Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.
clean chroot building not flexible enough ?
Try clean chroot manager by graysky
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#5 2025-11-13 09:10:58
- Allan
- Pacman
- From: Brisbane, AU
- Registered: 2007-06-09
- Posts: 11,606
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Re: CCACHE_NAMESPACE in PKGBUILD ?
Will CCACHE_NAMESPACE be passed from makepkg to the PKGBUILD and to commands run from within the PKGBUILD ?
I think so... I have used such an approach for configure in PKGBUILDs to pick up CC=clang. Only one way to find out!
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#6 2025-11-13 12:59:05
- Lone_Wolf
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- From: Netherlands, Europe
- Registered: 2005-10-04
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Re: CCACHE_NAMESPACE in PKGBUILD ?
It appears CCACHE_NAMESPACE in an alias is working.
The --evict-namespace and --evict-older-than are also functional.
Sofar i have not found a way to get details about which namespaces are used or how big they are.
the -s , -sv and -svv options for ccache give lots of detail, but nothing about namespaces.
Will try with a freshly created cache dir next time I build stuff.
Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.
clean chroot building not flexible enough ?
Try clean chroot manager by graysky
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