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systemd/mkosi.build
Daan De Meyer e2ebc406ac mkosi: Only reset file permissions when $SRCDIR is not a mountpoint
If $SRCDIR is mounted into the build image (via mkosi overrides),
let's not reset the permissions fo the source tree so as to not
modify the original files on the host.
2021-01-14 20:08:20 +01:00

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#!/bin/sh
set -e
# This is a build script for OS image generation using mkosi (https://github.com/systemd/mkosi).
# Simply invoke "mkosi" in the project directory to build an OS image.
# Reset the permissions of the tree. Since Meson keeps the permissions
# all the way to the installed files, reset them to one of 0644 or 0755
# so the files keep those permissions, otherwise details of what umask
# was set at the time the git tree was cloned will leak all the way
# through. Also set umask explicitly during the build.
if ! mountpoint -q "$SRCDIR"; then
chmod -R u+w,go-w,a+rX .
umask 022
fi
# If mkosi.builddir/ exists mkosi will set $BUILDDIR to it, let's then use it
# as out-of-tree build dir. Otherwise, let's make up our own builddir.
[ -z "$BUILDDIR" ] && BUILDDIR=build
# Meson uses Python 3 and requires a locale with an UTF-8 character map.
# Not running under UTF-8 makes the `ninja test` step break with a CodecError.
# So let's ensure we're running under UTF-8.
#
# If our current locale already is UTF-8, then we don't need to do anything:
if [ "$(locale charmap 2> /dev/null)" != "UTF-8" ] ; then
# Try using C.UTF-8 locale, if available. This locale is not shipped
# by upstream glibc, so it's not available in all distros.
# (In particular, it's not available in Arch Linux.)
if locale -a | grep -q -E "C.UTF-8|C.utf8"; then
export LC_CTYPE=C.UTF-8
# Finally, try something like en_US.UTF-8, which should be
# available in Arch Linux, but is not present in Debian's
# minimal image in our mkosi config.
elif locale -a | grep -q en_US.utf8; then
export LC_CTYPE=en_US.UTF-8
else
# If nothing works, fail early.
echo "*** Could not find a valid locale that supports UTF-8. ***" >&2
exit 1
fi
fi
if [ ! -f "$BUILDDIR"/build.ninja ] ; then
sysvinit_path=`realpath /etc/init.d`
init_path=`realpath /sbin/init 2>/dev/null`
if [ -z "$init_path" ] ; then
rootprefix=""
else
rootprefix=${init_path%/lib/systemd/systemd}
rootprefix=/${rootprefix#/}
fi
nobody_user=`id -u -n 65534 2> /dev/null`
if [ "$nobody_user" != "" ] ; then
# Validate that we can translate forth and back
if [ "`id -u $nobody_user`" != 65534 ] ; then
nobody_user=""
fi
fi
if [ "$nobody_user" = "" ] ; then
if id -u nobody 2> /dev/null ; then
# The "nobody" user is defined already for something else, pick the Fedora name
nobody_user=nfsnobody
else
# The "nobody" user name is free, use it
nobody_user=nobody
fi
fi
nobody_group=`id -g -n 65534 2> /dev/null`
if [ "$nobody_group" != "" ] ; then
# Validate that we can translate forth and back
if [ "`id -g $nobody_group`" != 65534 ] ; then
nobody_group=""
fi
fi
if [ "$nobody_group" = "" ] ; then
if id -u nobody 2> /dev/null ; then
# The "nobody" group is defined already for something else, pick the Fedora name
nobody_group=nfsnobody
else
# The "nobody" group name is free, use it
nobody_group=nobody
fi
fi
meson "$BUILDDIR" \
-D "sysvinit-path=$sysvinit_path" \
-D "rootprefix=$rootprefix" \
-D man=false \
-D "nobody-user=$nobody_user" \
-D "nobody-group=$nobody_group" \
-D translations=false
fi
cd "$BUILDDIR"
ninja
if [ "$WITH_TESTS" = 1 ] ; then
for id in 1 2 3; do
getent group $id > /dev/null || groupadd -g $id testgroup$id
done
ninja test
fi
cd "$SRCDIR"
# Ubuntu Focal is stuck with meson 0.53.0.
if [ "$(meson -v | cut -d . -f 2)" -gt 53 ] ; then
meson install -C "$BUILDDIR" --quiet --no-rebuild --only-changed
else
meson install -C "$BUILDDIR" --no-rebuild --only-changed
fi
mkdir -p "$DESTDIR"/etc
cat > "$DESTDIR"/etc/issue <<EOF
\S (built from systemd tree)
Kernel \r on an \m (\l)
EOF
# Manually update the boot loader from the one we just built
mkdir -p "$DESTDIR"/boot/efi/EFI/systemd "$DESTDIR"/boot/efi/EFI/BOOT
cp "$DESTDIR"/usr/lib/systemd/boot/efi/systemd-bootx64.efi "$DESTDIR"/boot/efi/EFI/systemd/systemd-bootx64.efi
cp "$DESTDIR"/usr/lib/systemd/boot/efi/systemd-bootx64.efi "$DESTDIR"/boot/efi/EFI/BOOT/bootx64.efi
mkdir -p "$DESTDIR"/efi/EFI/systemd "$DESTDIR"/efi/EFI/BOOT
cp "$DESTDIR"/usr/lib/systemd/boot/efi/systemd-bootx64.efi "$DESTDIR"/efi/EFI/systemd/systemd-bootx64.efi
cp "$DESTDIR"/usr/lib/systemd/boot/efi/systemd-bootx64.efi "$DESTDIR"/efi/EFI/BOOT/bootx64.efi