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authorLuke Shumaker <lukeshu@parabola.nu>2017-02-15 14:40:06 -0500
committerLuke Shumaker <lukeshu@parabola.nu>2018-01-03 14:58:21 -0500
commitb8e75f82904bb622c22bc124b71dfe48b9e2719e (patch)
tree1512310addfb3e725940b728cfae42a2bee475a6
parentc98fbbf39fd7e652895fcc1deb485fedb1e2f3bf (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 028191b..c448056 100644
--- a/arch-nspawn.in
+++ b/arch-nspawn.in
@@ -105,6 +105,7 @@ elif [[ $(cat "$working_dir/.arch-chroot") != "$CHROOT_VERSION" ]]; then
fi
build_mount_args
+cache_dirs+=('/repo/')
copy_hostconf
eval "$(grep -a '^CARCH=' "$working_dir/etc/makepkg.conf")"
diff --git a/makechrootpkg.in b/makechrootpkg.in
index 301f067..210ae6e 100644
--- a/makechrootpkg.in
+++ b/makechrootpkg.in
@@ -201,6 +201,19 @@ builduser ALL = NOPASSWD: /usr/bin/pacman
EOF
chmod 440 "$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
{