mkosi.build

   1 #!/bin/sh
   2 set -e
   3
   4 # This is a build script for OS image generation using mkosi (https://github.com/systemd/mkosi).
   5 # Simply invoke "mkosi" in the project directory to build an OS image.
   6
   7 # Reset the permissions of the tree. Since Meson keeps the permissions
   8 # all the way to the installed files, reset them to one of 0644 or 0755
   9 # so the files keep those permissions, otherwise details of what umask
  10 # was set at the time the git tree was cloned will leak all the way
  11 # through. Also set umask explicitly during the build.
  12 if ! mountpoint -q "$SRCDIR"; then
  13         chmod -R u+w,go-w,a+rX .
  14         umask 022
  15 fi
  16
  17 # If mkosi.builddir/ exists mkosi will set $BUILDDIR to it, let's then use it
  18 # as out-of-tree build dir. Otherwise, let's make up our own builddir.
  19 [ -z "$BUILDDIR" ] && BUILDDIR=build
  20
  21 # Meson uses Python 3 and requires a locale with an UTF-8 character map.
  22 # Not running under UTF-8 makes the `ninja test` step break with a CodecError.
  23 # So let's ensure we're running under UTF-8.
  24 #
  25 # If our current locale already is UTF-8, then we don't need to do anything:
  26 if [ "$(locale charmap 2> /dev/null)" != "UTF-8" ] ; then
  27         # Try using C.UTF-8 locale, if available. This locale is not shipped
  28         # by upstream glibc, so it's not available in all distros.
  29         # (In particular, it's not available in Arch Linux.)
  30         if locale -a | grep -q -E "C.UTF-8|C.utf8"; then
  31                 export LC_CTYPE=C.UTF-8
  32         # Finally, try something like en_US.UTF-8, which should be
  33         # available in Arch Linux, but is not present in Debian's
  34         # minimal image in our mkosi config.
  35         elif locale -a | grep -q en_US.utf8; then
  36                 export LC_CTYPE=en_US.UTF-8
  37         else
  38                 # If nothing works, fail early.
  39                 echo "*** Could not find a valid locale that supports UTF-8. ***" >&2
  40                 exit 1
  41         fi
  42 fi
  43
  44 if [ ! -f "$BUILDDIR"/build.ninja ] ; then
  45         sysvinit_path=`realpath /etc/init.d`
  46
  47         init_path=`realpath /sbin/init 2>/dev/null`
  48         if [ -z "$init_path" ] ; then
  49             rootprefix=""
  50         else
  51             rootprefix=${init_path%/lib/systemd/systemd}
  52             rootprefix=/${rootprefix#/}
  53         fi
  54
  55         nobody_user=`id -u -n 65534 2> /dev/null`
  56         if [ "$nobody_user" != "" ] ; then
  57                 # Validate that we can translate forth and back
  58                 if [ "`id -u $nobody_user`" != 65534 ] ; then
  59                         nobody_user=""
  60                 fi
  61         fi
  62         if [ "$nobody_user" = "" ] ; then
  63                 if id -u nobody 2> /dev/null ; then
  64                         # The "nobody" user is defined already for something else, pick the Fedora name
  65                         nobody_user=nfsnobody
  66                 else
  67                         # The "nobody" user name is free, use it
  68                         nobody_user=nobody
  69                 fi
  70         fi
  71
  72         nobody_group=`id -g -n 65534 2> /dev/null`
  73         if [ "$nobody_group" != "" ] ; then
  74                 # Validate that we can translate forth and back
  75                 if [ "`id -g $nobody_group`" != 65534 ] ; then
  76                         nobody_group=""
  77                 fi
  78         fi
  79         if [ "$nobody_group" = "" ] ; then
  80                 if id -u nobody 2> /dev/null ; then
  81                         # The "nobody" group is defined already for something else, pick the Fedora name
  82                         nobody_group=nfsnobody
  83                 else
  84                         # The "nobody" group name is free, use it
  85                         nobody_group=nobody
  86                 fi
  87         fi
  88
  89         meson "$BUILDDIR" \
  90                 -D "sysvinit-path=$sysvinit_path" \
  91                 -D "rootprefix=$rootprefix" \
  92                 -D man=false \
  93                 -D "nobody-user=$nobody_user" \
  94                 -D "nobody-group=$nobody_group" \
  95                 -D translations=false \
  96                 -D version-tag="${VERSION_TAG}"
  97 fi
  98
  99 cd "$BUILDDIR"
 100 ninja
 101 if [ "$WITH_TESTS" = 1 ] ; then
 102         for id in 1 2 3; do
 103                 getent group $id > /dev/null || groupadd -g $id testgroup$id
 104         done
 105
 106         ninja test
 107 fi
 108 cd "$SRCDIR"
 109
 110 # Ubuntu Focal is stuck with meson 0.53.0.
 111 if [ "$(meson -v | cut -d . -f 2)" -gt 53 ] ; then
 112         meson install -C "$BUILDDIR" --quiet --no-rebuild --only-changed
 113 else
 114         meson install -C "$BUILDDIR" --no-rebuild --only-changed
 115 fi
 116
 117 mkdir -p "$DESTDIR"/etc
 118
 119 cat > "$DESTDIR"/etc/issue <<EOF
 120 \S (built from systemd tree)
 121 Kernel \r on an \m (\l)
 122
 123 EOF
 124
 125 # Manually update the boot loader from the one we just built
 126 mkdir -p "$DESTDIR"/boot/efi/EFI/systemd "$DESTDIR"/boot/efi/EFI/BOOT
 127 cp "$DESTDIR"/usr/lib/systemd/boot/efi/systemd-bootx64.efi "$DESTDIR"/boot/efi/EFI/systemd/systemd-bootx64.efi
 128 cp "$DESTDIR"/usr/lib/systemd/boot/efi/systemd-bootx64.efi "$DESTDIR"/boot/efi/EFI/BOOT/bootx64.efi
 129
 130 mkdir -p "$DESTDIR"/efi/EFI/systemd "$DESTDIR"/efi/EFI/BOOT
 131 cp "$DESTDIR"/usr/lib/systemd/boot/efi/systemd-bootx64.efi "$DESTDIR"/efi/EFI/systemd/systemd-bootx64.efi
 132 cp "$DESTDIR"/usr/lib/systemd/boot/efi/systemd-bootx64.efi "$DESTDIR"/efi/EFI/BOOT/bootx64.efi