new type: __download

This commit is contained in:
ander 2020-06-14 11:07:18 +03:00
parent 48d66b0143
commit 201050a9e5
7 changed files with 127 additions and 0 deletions

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#!/bin/sh -e
dst="/$__object_id"
# shellcheck disable=SC2059
cmd="$( printf "$( cat "$__object/parameter/cmd-sum" )" "$dst" )"
sum="$( cat "$__object/parameter/sum" )"
if [ -f "$dst" ]
then
if [ "$( eval "$cmd" )" = "$sum" ]
then
echo 'present'
else
echo 'mismatch'
fi
else
echo 'absent'
fi

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#!/bin/sh -e
state_is="$( cat "$__object/explorer/state" )"
if [ "$state_is" = 'present' ]
then
exit 0
fi
url="$( cat "$__object/parameter/url" )"
cmd="$( cat "$__object/parameter/cmd-get" )"
tmp="$( mktemp )"
dst="/$__object_id"
printf "$cmd > %s\n" \
"$url" \
"$tmp"
if echo "$__target_host" | grep -Eq '^[0-9a-fA-F:]+$'
then
target_host="[$__target_host]"
else
target_host="$__target_host"
fi
printf '%s %s %s:%s\n' \
"$__remote_copy" \
"$tmp" \
"$target_host" \
"$dst"
echo "rm -f '$tmp'"

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cdist-type__download(7)
=======================
NAME
----
cdist-type__download - Download file to local storage and copy it to target host
DESCRIPTION
-----------
You must use persistent storage in target host for destination file
(``$__object_id``) because it will be used for checksum calculation
in order to decide if file must be downloaded.
REQUIRED PARAMETERS
-------------------
url
URL from which to download the file.
sum
Checksum of downloaded file.
OPTIONAL PARAMETERS
-------------------
cmd-get
Command used for downloading.
Default is ``wget -O- '%s'``.
Command must output to ``stdout``.
cmd-sum
Command used for checksum calculation.
Default is ``md5sum '%s' | awk '{print $1}'``.
Command output and ``--sum`` parameter must match.
EXAMPLES
--------
.. code-block:: sh
__directory /opt/cpma
require='__directory/opt/cpma' \
__download /opt/cpma/cnq3.zip \
--url https://cdn.playmorepromode.com/files/cnq3/cnq3-1.51.zip \
--sum 46da3021ca9eace277115ec9106c5b46
require='__download/opt/cpma/cnq3.zip' \
__unpack /opt/cpma/cnq3.zip \
--move-existing-destination \
--destination /opt/cpma/server
AUTHORS
-------
Ander Punnar <ander-at-kvlt-dot-ee>
COPYING
-------
Copyright \(C) 2020 Ander Punnar. 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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wget -O- '%s'

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md5sum '%s' | awk '{print $1}'

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cmd-get
cmd-sum

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url
sum