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makepkg: implement locking for pacman commands

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When pacman is run as root to do -S, -U, or -R, it would immediately
abort if pacman is not ready for use. Instead, poll the lockfile and
wait until it becomes available.

Implements FS#28840

Original-patch-by: Georges Dubus <georges.dubus@compiletoi.net>
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
This commit is contained in:
Eli Schwartz 2019-02-20 21:35:19 -05:00 • committed by Allan McRae
parent 477a66cd0e
commit 4b83bcfcee
1 changed files with 9 additions and 0 deletions
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9
scripts/makepkg.sh.in
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@ -228,6 +228,15 @@ run_pacman() {
else
cmd=(su root -c "$(printf '%q ' "${cmd[@]}")")
fi
local lockfile="$(pacman-conf DBPath)/db.lck"
while [[ -f $lockfile ]]; do
local timer=0
msg "$(gettext "Pacman is currently in use, please wait...")"
while [[ -f $lockfile ]] && (( timer < 10 )); do
(( ++timer ))
sleep 3
done
done
fi
"${cmd[@]}"
}