[arch-projects] [DEVTOOLS][PATCH 4/6] makechrootpkg: Use random copy directory with btrfs
Jan Steffens
jan.steffens at gmail.com
Sat Mar 2 01:15:34 EST 2013
On Sat, Mar 2, 2013 at 5:21 AM, Sébastien Luttringer <seblu at seblu.net> wrote:
> btrfs COW allow almost gratuitous create/destroy chroot copy.
>
> To allow automatic parallel builds the default copy value is $RANDOM when the
> underlying filesytem is btrfs.
>
> Signed-off-by: Sébastien Luttringer <seblu at seblu.net>
> ---
> makechrootpkg.in | 11 ++++++++---
> 1 file changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/makechrootpkg.in b/makechrootpkg.in
> index c8b5f87..7a780df 100644
> --- a/makechrootpkg.in
> +++ b/makechrootpkg.in
> @@ -55,7 +55,7 @@ usage() {
> echo '-I <pkg> Install a package into the working copy of the chroot'
> echo '-l <copy> The directory to use as the working copy of the chroot'
> echo ' Useful for maintaining multiple copies.'
> - echo " Default: $default_copy"
> + echo " Default: $default_copy or random for btrfs"
> echo '-n Run namcap on the package'
> exit 1
> }
> @@ -80,12 +80,17 @@ chrootdir=$(readlink -e "$passeddir")
> # Detect chrootdir filesystem type
> chroottype=$(stat -f -c %T "$chrootdir")
>
> +# Define copy directory
> if [[ ${copy:0:1} = / ]]; then
> copydir=$copy
> -else
> - [[ -z $copy ]] && copy=$default_copy
> +elif [[ -n $copy ]]; then
> copydir="$chrootdir/$copy"
> +elif [[ "$chroottype" == btrfs ]]; then
> + copydir="$chrootdir/$RANDOM"
> +else
> + copydir="$chrootdir/$default_copy"
> fi
> +copy=${copydir##*/}
>
> # Pass all arguments after -- right to makepkg
> makepkg_args="$makepkg_args ${*:$OPTIND}"
> --
> Sébastien "Seblu" Luttringer
>
NACK. See comment to patch 6/6.
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