rpm-ostree/tests/vmcheck/test-layering-scripts.sh
Colin Walters 0d4d6be94f Implement file triggers (%transfiletriggerin) for layered pkgs
File triggers are a post-RHEL7 thing; more information at
http://rpm.org/user_doc/file_triggers.html

There are two notable users I've been testing this with;
`glib2` and `vagrant`.  The `vagrant` one is more immediately urgent,
since it makes `vagrant-libvirt` work, which I currently rely on
for my workstation dev.

I've tested things successfully with `vagrant`, and I did verify that we run the
`glib2` ones when doing `rpm-ostree ex container`.

Long term, more transaction file triggers are likely to live in
"base" packages like `glib2`.  We don't implement those yet, but
extending this to do that shouldn't be too hard.

There was *significant* what I'd call reverse engineering of the
implementation in librpm.  The file triggers code there is spread out
and abstracted in a few different places in the code.  I found
trying to understand what header values were involved to be quite
tricky.

There are some corner cases like multiple patterns that I *think*
this does correctly, but could use more validation.  The main
question I had was - is it required that the patterns for e.g.
`%transfiletriggerin` and `%transfiletriggerun` be identical?

Closes: https://github.com/projectatomic/rpm-ostree/issues/648

Closes: #869
Approved by: jlebon
2017-07-27 20:58:09 +00:00

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#!/bin/bash
#
# Copyright (C) 2016 Jonathan Lebon <jlebon@redhat.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
set -e
. ${commondir}/libtest.sh
. ${commondir}/libvm.sh
set -x
# SUMMARY: check that RPM scripts are properly handled during package layering
# do a bunch of tests together so that we only have to reboot once
vm_build_rpm scriptpkg1 \
pre "groupadd -r scriptpkg1" \
pretrans "# http://lists.rpm.org/pipermail/rpm-ecosystem/2016-August/000391.html
echo i should've been ignored && exit 1" \
post_args "-p /usr/bin/python" \
post 'open("/usr/lib/rpmostreetestinterp", "w")' \
posttrans "# Firewalld; https://github.com/projectatomic/rpm-ostree/issues/638
. /etc/os-release || :
# See https://github.com/projectatomic/rpm-ostree/pull/647
for path in /tmp /var/tmp; do
if test -f \${path}/file-in-host-tmp-not-for-scripts; then
echo found file from host /tmp
exit 1
fi
done"
# check that host /tmp doesn't get mounted
vm_cmd touch /tmp/file-in-host-tmp-not-for-scripts
vm_rpmostree pkg-add scriptpkg1
echo "ok pkg-add scriptpkg1"
vm_reboot
vm_assert_layered_pkg scriptpkg1 present
echo "ok pkg scriptpkg1 added"
vm_cmd "test ! -f /usr/scriptpkg1.posttrans"
echo "ok no embarrassing crud leftover"
# let's check that the group was successfully added
vm_cmd getent group scriptpkg1
echo "ok group scriptpkg1 active"
vm_has_files "/usr/lib/rpmostreetestinterp"
echo "ok interp"
vm_build_rpm scriptpkg2 \
post_args "-e" \
post 'echo %%{_prefix} > /usr/lib/prefixtest.txt'
vm_build_rpm scriptpkg3 \
post 'echo %%{_prefix} > /usr/lib/noprefixtest.txt'
vm_rpmostree pkg-add scriptpkg{2,3}
vm_rpmostree ex livefs
vm_cmd cat /usr/lib/noprefixtest.txt > noprefixtest.txt
assert_file_has_content noprefixtest.txt '%{_prefix}'
vm_cmd cat /usr/lib/prefixtest.txt > prefixtest.txt
assert_file_has_content prefixtest.txt "/usr"
echo "ok script expansion"
vm_rpmostree rollback
vm_reboot
vm_rpmostree cleanup -p
# File triggers are Fedora+
if ! vm_cmd grep -q 'ID=.*centos' /etc/os-release; then
# We use /usr/share/licenses since it's small predictable content
license_combos="zlib-rpm systemd-tar-rpm sed-tzdata"
license_un_combos="zlib systemd-rpm"
vm_build_rpm scriptpkg4 \
transfiletriggerin "/usr/share/licenses/zlib /usr/share/licenses/rpm" 'sort >/usr/share/transfiletriggerin-license-zlib-rpm.txt' \
transfiletriggerun "/usr/share/licenses/zlib" 'sort >/usr/share/transfiletriggerun-license-zlib.txt'
vm_build_rpm scriptpkg5 \
transfiletriggerin "/usr/share/licenses/systemd /usr/share/licenses/rpm /usr/share/licenses/tar" 'sort >/usr/share/transfiletriggerin-license-systemd-tar-rpm.txt' \
transfiletriggerun "/usr/share/licenses/systemd /usr/share/licenses/rpm" 'sort >/usr/share/transfiletriggerun-license-systemd-rpm.txt' \
transfiletriggerin2 "/usr/share/licenses/sed /usr/share/licenses/tzdata" 'sort >/usr/share/transfiletriggerin-license-sed-tzdata.txt'
vm_rpmostree pkg-add scriptpkg{4,5}
vm_rpmostree ex livefs
for combo in ${license_combos}; do
vm_cmd cat /usr/share/transfiletriggerin-license-${combo}.txt > transfiletriggerin-license-${combo}.txt
rm -f transfiletriggerin-fs-${combo}.txt.tmp
(for path in $(echo ${combo} | sed -e 's,-, ,g'); do
vm_cmd find /usr/share/licenses/${path} -type f
done) | sort > transfiletriggerin-fs-license-${combo}.txt
diff -u transfiletriggerin-license-${combo}.txt transfiletriggerin-fs-license-${combo}.txt
done
for combo in ${license_un_combos}; do
vm_cmd test '!' -f /usr/share/licenses/transfiletriggerun-license-${combo}.txt
done
# We really need a reset command to go back to the base layer
vm_rpmostree uninstall scriptpkg{4,5}
echo "ok transfiletriggerin"
fi
# And now, things that should fail
vm_build_rpm rofiles-violation \
post "echo should fail >> /usr/share/licenses/glibc/COPYING"
if vm_rpmostree install rofiles-violation; then
assert_not_reached "installed test-post-rofiles-violation!"
fi
vm_cmd 'useradd testuser || true'
vm_cmd touch /home/testuser/somedata /tmp/sometmpfile /var/tmp/sometmpfile
vm_build_rpm rmrf post "rm --no-preserve-root -rf / &>/dev/null || true"
if vm_rpmostree install rmrf 2>err.txt; then
assert_not_reached "rm -rf / worked? Uh oh."
fi
vm_cmd test -f /home/testuser/somedata -a -f /etc/fstab -a -f /tmp/sometmpfile -a -f /var/tmp/sometmpfile
# This is the error today, we may improve it later
assert_file_has_content err.txt 'error: sanitycheck: Executing bwrap(/usr/bin/true)'