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authorLuke Shumaker <lukeshu@parabola.nu>2017-02-15 14:40:06 -0500
committerLuke Shumaker <lukeshu@parabola.nu>2018-05-20 21:57:40 -0400
commit527621ed8b8ac2a4b0384baa475070d87415a253 (patch)
treeea61b8e2ba476d245a0d8b32d6a772134b139e1c
parent38cc02ec9a7e27c9c35380215d8535c857a704a7 (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=' "$working_dir/etc/makepkg.conf")"
diff --git a/makechrootpkg.in b/makechrootpkg.in
index 0b48d5b..98cd1b5 100644
--- a/makechrootpkg.in
+++ b/makechrootpkg.in
@@ -202,6 +202,19 @@ builduser ALL = NOPASSWD: /usr/bin/pacman
EOF
chmod 440 "$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
{