[__update_alternatives] rewrite and support --install
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b6922508b9
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8 changed files with 107 additions and 16 deletions
cdist/conf/type/__update_alternatives
4
cdist/conf/type/__update_alternatives/explorer/alternatives
Executable file
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cdist/conf/type/__update_alternatives/explorer/alternatives
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#!/bin/sh -e
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update-alternatives --display "$__object_id" 2>/dev/null \
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| awk -F ' - ' '/priority [0-9]+$/ { print $1 }'
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cdist/conf/type/__update_alternatives/explorer/link
Executable file
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cdist/conf/type/__update_alternatives/explorer/link
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#!/bin/sh -e
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# fedora's (update-)alternatives --display output doesn't have
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# "link <name> is <path>" line, but debian does. so, let's find
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# out how they store this information.
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#
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# debian and friends:
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# https://salsa.debian.org/dpkg-team/dpkg/-/blob/master/utils/update-alternatives.c
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# see calls to altdb_print_line function
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#
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# fedora and friends:
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# https://github.com/fedora-sysv/chkconfig/blob/master/alternatives.c
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# see calls to parseLine function
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#
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# conclusion: it is safe to assume that (master) link is on second line
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for altdir in \
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/var/lib/dpkg/alternatives \
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/var/lib/alternatives
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do
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if [ ! -f "$altdir/$__object_id" ]
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then
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continue
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fi
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link="$( awk 'NR==2' "$altdir/$__object_id" )"
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if [ -n "$link" ]
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then
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break
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fi
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done
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if [ -z "$link" ]
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then
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echo "unable to get link for $__object_id" >&2
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exit 1
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fi
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echo "$link"
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cdist/conf/type/__update_alternatives/explorer/path_is
Executable file
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cdist/conf/type/__update_alternatives/explorer/path_is
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@ -0,0 +1,12 @@
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#!/bin/sh -e
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path_is="$( update-alternatives --display "$__object_id" 2>/dev/null \
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| awk '/link currently points to/ {print $5}' )"
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if [ -z "$path_is" ]
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then
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echo "unable to get current path for $__object_id" >&2
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exit 1
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fi
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echo "$path_is"
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cdist/conf/type/__update_alternatives/explorer/path_should_state
Executable file
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cdist/conf/type/__update_alternatives/explorer/path_should_state
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@ -0,0 +1,8 @@
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#!/bin/sh -e
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if [ -f "$( cat "$__object/parameter/path" )" ]
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then
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echo 'present'
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else
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echo 'absent'
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fi
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@ -1,8 +0,0 @@
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#!/bin/sh -e
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path="$(cat "$__object/parameter/path")"
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name="$__object_id"
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link="$(readlink "/etc/alternatives/$name")"
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if [ "$path" = "$link" ]
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then echo present
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else echo absent
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fi
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@ -1,6 +1,7 @@
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#!/bin/sh -e
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#
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# 2013 Nico Schottelius (nico-cdist at schottelius.org)
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# 2020 Ander Punnar (ander@kvlt.ee)
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#
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# This file is part of cdist.
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#
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@ -16,12 +17,38 @@
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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if [ "$(cat "$__object/explorer/state")" = 'present' ]
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then exit 0
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path_is="$( cat "$__object/explorer/path_is" )"
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path_should="$( cat "$__object/parameter/path" )"
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if [ "$path_is" = "$path_should" ]
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then
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exit 0
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fi
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if [ "$( cat "$__object/explorer/path_should_state" )" = 'absent' ] && [ -z "$__cdist_dry_run" ]
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then
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echo "$path_should does not exist in target" >&2
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exit 1
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fi
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path="$(cat "$__object/parameter/path")"
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name="$__object_id"
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echo "update-alternatives --quiet --set '$name' '$path'"
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alternatives="$( cat "$__object/explorer/alternatives" )"
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if ! echo "$alternatives" | grep -Fxq "$path_should"
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then
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if [ ! -f "$__object/parameter/install" ]
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then
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echo "$path_should is not in $name alternatives." >&2
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echo 'Please install missing packages or use --install to add path to alternatives.' >&2
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exit 1
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fi
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link="$( cat "$__object/explorer/link" )"
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echo "update-alternatives --install '$link' '$name' '$path_should' 1000"
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fi
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echo "update-alternatives --set '$name' '$path_should'"
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@ -19,6 +19,12 @@ path
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Use this path for the given alternative
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BOOLEAN PARAMETERS
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------------------
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install
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Add (``update-alternatives --install``) missing path to alternatives.
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EXAMPLES
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--------
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@ -36,11 +42,12 @@ SEE ALSO
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AUTHORS
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-------
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Nico Schottelius <nico-cdist--@--schottelius.org>
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Ander Punnar <ander@kvlt.ee>
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COPYING
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-------
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Copyright \(C) 2013 Nico Schottelius. You can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of the
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Copyright \(C) 2013 Nico Schottelius and 2020 Ander Punnar. You can
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redistribute it and/or modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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1
cdist/conf/type/__update_alternatives/parameter/boolean
Normal file
1
cdist/conf/type/__update_alternatives/parameter/boolean
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install
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