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authorLuke Shumaker <lukeshu@parabola.nu>2017-02-15 14:40:06 -0500
committerLuke Shumaker <lukeshu@parabola.nu>2018-08-02 17:04:24 -0400
commitd555cda6348301fd3cfa180d6a4771216b3e0822 (patch)
tree4044563bdcaddb4f6c60b2b61b4b4313acf29ce2
parent5f9b72f8cdc1a99446cca6f606cfa7f2d2b59f90 (diff)
makechrootpkg, arch-nspawn: Force-enable local '/repo/' repository
The change in arch-nspawn is subtle: This was the source of "infamous" "it fails every other time" bug that took me over a year to solve. <https://labs.parabola.nu/issues/435> By having a repository of local packages (rather than simply running `pacman -U`), we are inviting pacman to cache them in `/var/cache/pacman/pkg`. Besides being needless disk writes, this actually causes a real issue. If the package gets rebuilt, pacman will balk, as the file no longer matches the cached signature. So, how do we prevent pacman from caching these local packages? Simple: include the directory they are already in in the pacman.conf:CacheDir list. This will prevent pacman from copying the files to one of the other cache directories.
-rw-r--r--arch-nspawn.in1
-rw-r--r--makechrootpkg.in13
2 files changed, 14 insertions, 0 deletions
diff --git a/arch-nspawn.in b/arch-nspawn.in
index 7f432a6..96b3e38 100644
--- a/arch-nspawn.in
+++ b/arch-nspawn.in
@@ -106,6 +106,7 @@ elif [[ $(cat "$working_dir/.arch-chroot") != "$CHROOT_VERSION" ]]; then
fi
build_mount_args
+cache_dirs+=('/repo/')
copy_hostconf
eval "$(grep -a '^CARCH=' "$working_dir/etc/makepkg.conf")"
diff --git a/makechrootpkg.in b/makechrootpkg.in
index d81be84..802ab65 100644
--- a/makechrootpkg.in
+++ b/makechrootpkg.in
@@ -196,6 +196,19 @@ builduser ALL = NOPASSWD: /usr/bin/pacman
EOF
chmod 440 "$copydir/etc/sudoers.d/builduser-pacman"
+ if ! grep -q '^\[repo\]' "$copydir/etc/pacman.conf"; then
+ local line
+ line=$(grep -n '^\[' "$copydir/etc/pacman.conf" |grep -Fv ':[options]'|sed 's/:.*//;1q')
+ local ins='[repo]
+SigLevel = Optional TrustAll
+Server = file:///repo
+'
+ sed -i "${line}i${ins//$'\n'/\\n}" "$copydir/etc/pacman.conf"
+ fi
+ # Avoid having to use `pacman -Sy` to update [repo], as
+ # networking might be disabled inside of the chroot.
+ cp "$copydir/repo/repo.db" "$copydir/var/lib/pacman/sync/repo.db"
+
# This is a little gross, but this way the script is recreated every time in the
# working copy
{