new type: __download

cdist/conf/type/__download/explorer/state

@@ -0,0 +1,20 @@
+#!/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

cdist/conf/type/__download/gencode-local

@@ -0,0 +1,35 @@
+#!/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'"

cdist/conf/type/__download/man.rst

@@ -0,0 +1,66 @@
+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.

cdist/conf/type/__download/parameter/default/cmd-get

@@ -0,0 +1 @@
+wget -O- '%s'

cdist/conf/type/__download/parameter/default/cmd-sum

@@ -0,0 +1 @@
+md5sum '%s' | awk '{print $1}'

cdist/conf/type/__download/parameter/optional

@@ -0,0 +1,2 @@
+cmd-get
+cmd-sum

cdist/conf/type/__download/parameter/required

@@ -0,0 +1,2 @@
+url
+sum