Merge branch 'apt-pin-type' into 'master'

New type: __apt_pin - manage apt pinning

See merge request ungleich-public/cdist!1005
This commit is contained in:
poljakowski 2021-07-18 17:44:04 +02:00
commit 8b160841ad
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cdist-type__apt_pin(7)
======================
NAME
----
cdist-type__apt_pin - Manage apt pinning rules
DESCRIPTION
-----------
Adds/removes/edits rules to pin some packages to a specific distribution. Useful if using multiple debian repositories at the same time. (Useful, if one wants to use a few specific packages from backports or perhaps Debain testing... or even sid.)
REQUIRED PARAMETERS
-------------------
distribution
Specifies what distribution the package should be pinned to. Accepts both codenames (buster/bullseye/sid) and suite names (stable/testing/...).
OPTIONAL PARAMETERS
-------------------
package
Package name, glob or regular expression to match (multiple) packages. If not specified `__object_id` is used.
priority
The priority value to assign to matching packages. Deafults to 500. (To match the default target distro's priority)
state
Will be passed to underlying `__file` type; see there for valid values and defaults.
BOOLEAN PARAMETERS
------------------
None.
EXAMPLES
--------
.. code-block:: sh
# Add the bullseye repo to buster, but do not install any packages by default,
# only if explicitely asked for (-1 means "never" for apt)
__apt_pin bullseye-default \
--package "*" \
--distribution bullseye \
--priority -1
require="__apt_pin/bullseye-default" __apt_source bullseye \
--uri http://deb.debian.org/debian/ \
--distribution bullseye \
--component main
__apt_pin foo --package "foo foo-*" --distribution bullseye
__foo # Assuming, this installs the `foo` package internally
__package foo-plugin-extras # Assuming we also need some extra stuff
SEE ALSO
--------
:strong:`apt_preferences`\ (5)
:strong:`cdist-type__apt_source`\ (7)
:strong:`cdist-type__apt_backports`\ (7)
:strong:`cdist-type__file`\ (7)
AUTHORS
-------
Daniel Fancsali <fancsali@gmail.com>
COPYING
-------
Copyright \(C) 2021 Daniel Fancsali. You can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

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#!/bin/sh -e
#
# 2021 Daniel Fancsali (fancsali@gmail.com)
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
name="$__object_id"
os=$(cat "$__global/explorer/os")
state="$(cat "$__object/parameter/state")"
if [ -f "$__object/parameter/package" ]; then
package="$(cat "$__object/parameter/package")"
else
package=$name
fi
distribution="$(cat "$__object/parameter/distribution")"
priority="$(cat "$__object/parameter/priority")"
case "$os" in
debian|ubuntu|devuan)
;;
*)
printf "This type is specific to Debian and it's derivatives" >&2
exit 1
;;
esac
case $distribution in
stable|testing|unstable|experimental)
pin="release a=$distribution"
;;
*)
pin="release n=$distribution"
;;
esac
__file "/etc/apt/preferences.d/$name" \
--owner root --group root --mode 0644 \
--state "$state" \
--source - << EOF
Package: $package
Pin: $pin
Pin-Priority: $priority
EOF

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present

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state
package

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distribution
priority