systems-assistant[bot]
c2312be1a2
git-subtree-dir: projects/rdc git-subtree-mainline:a68afa42a1git-subtree-split:5ae7eeb355
117 lines
3.6 KiB
Bash
Executable File
117 lines
3.6 KiB
Bash
Executable File
#!/bin/bash
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do_update_alternatives(){
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# skip update if program doesn't exist
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command -v update-alternatives >/dev/null || return 0
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local binaries altscore now
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now=$(date -u +%s) # Number of seconds since 1 Jan 1970
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# The reason for this approach rather than using the build number
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# is to allow for jobs from different builds. In one build job the
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# job number might be at 1200, whilst in a release job the number
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# may be only 1. This approach assums that if you install a build
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# with a different semantic version then the highest is the
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# desired one, but if you install two with the same semver then
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# the newest is the desired version.
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# Build up a score. It needs to fit in 32 bits
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altscore=$((@VERSION_MAJOR@ - 3))
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altscore=$((altscore * 14 + @VERSION_MINOR@)) # Allow up to 14 minor
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altscore=$((altscore * 14 + @VERSION_PATCH@)) # Allow up to 14 patch
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# So far if the version is less than 9 we have a number (altscore)
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# that is less than 1175. 2**31/1175 is about 1.8 million. So
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# multiply altscore by 1,000,000 and add in a factor of how many
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# minutes have passed from an arbitary point in time (1,600,000,000
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# seconds after 1 Jan 1970 or Sep 13 12:26:40 2020) on the
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# basis that no one is going to be installing a new version more
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# often than every minute. This does get things wrong if a million
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# minutes pass and you are downgrading, but the chances of someone
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# waiting almost 2 years between installing a version and the
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# previous patch level is small.
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altscore=$((altscore*1000000+(now-1600000000)/60))
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binaries=(
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rdcd
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rdci
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)
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for i in "${binaries[@]}"
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do
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# No obvious recover strategy if things fail
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# No manual or other slave pages to install
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if [ -e @CPACK_PACKAGING_INSTALL_PREFIX@/@CMAKE_INSTALL_BINDIR@/"$i" ]
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then
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update-alternatives --install /usr/bin/"$i" "$i" \
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@CPACK_PACKAGING_INSTALL_PREFIX@/@CMAKE_INSTALL_BINDIR@/"$i" "$altscore"
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else
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echo "@CPACK_PACKAGING_INSTALL_PREFIX@/@CMAKE_INSTALL_BINDIR@/$i not found, but that is OK" >&2
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fi
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done
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true
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}
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# This will return 0 if an id is created and non-zero if
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# it already exists
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# https://www.debian.org/doc/debian-policy/ch-opersys.html#users-and-groups
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do_create_rdc_user() {
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# create rdc group
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if ! getent group rdc > /dev/null 2>&1 ; then
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addgroup --system rdc
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fi
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# create rdc user
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if ! getent passwd rdc > /dev/null 2>&1 ; then
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adduser \
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--system \
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--quiet \
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--home /nonexistent \
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--no-create-home \
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--disabled-password \
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--ingroup rdc \
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rdc
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fi
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# only add render if it exists
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if getent group render > /dev/null 2>&1 ; then
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usermod -a -G render rdc
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fi
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# add video always
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usermod -a -G video rdc
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# Make sure this doesn't return non-zero if an id already exists
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return 0
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}
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create_rdc_service() {
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#Symlink RDC Service
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if [ -d /run/systemd/system ]; then
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ln -s -f -r @CPACK_PACKAGING_INSTALL_PREFIX@/@CMAKE_INSTALL_LIBEXECDIR@/rdc/rdc.service /lib/systemd/system/rdc.service
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fi
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}
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reload_systemd() {
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if [ -d /run/systemd/system ]; then
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systemctl daemon-reload
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fi
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return 0
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}
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case "$1" in
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configure)
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do_update_alternatives
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do_create_rdc_user
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create_rdc_service
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reload_systemd
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exit 0
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;;
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abort-upgrade|abort-remove|abort-deconfigure)
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echo "$1"
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;;
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*)
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exit 0
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;;
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esac
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