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nzbget: Fix script for copying default config file template (#51235)

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* nzbget: Fix configFile / dataDir checking in service script

* nzbget: improve the description for the `configFile` option

* nzbget: Add detail to the `configFile` option description

* nzbget: Improve wording of `configFile` option

* nzbget: Refactor dataDir management into systemd config

* nzbget: Remove debug
This commit is contained in:
Alex Whitt 2019-02-13 11:38:33 -05:00 committed by Florian Klink
parent b37667a645
commit 58d6951971
1 changed files with 19 additions and 21 deletions
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40
nixos/modules/services/misc/nzbget.nix
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@ -4,6 +4,7 @@ with lib;
let
cfg = config.services.nzbget;
dataDir = builtins.dirOf cfg.configFile;
in {
options = {
services.nzbget = {
@ -41,6 +42,12 @@ in {
default = "nzbget";
description = "Group under which NZBGet runs";
};
configFile = mkOption {
type = types.str;
default = "/var/lib/nzbget/nzbget.conf";
description = "Path for NZBGet's config file. (If this doesn't exist, the default config template is copied here.)";
};
};
};
@ -54,36 +61,25 @@ in {
p7zip
];
preStart = ''
datadir=${cfg.dataDir}
configfile=${cfg.dataDir}/nzbget.conf
cfgtemplate=${cfg.package}/share/nzbget/nzbget.conf
test -d $datadir || {
echo "Creating nzbget data directory in $datadir"
mkdir -p $datadir
}
test -f $configfile || {
echo "nzbget.conf not found. Copying default config $cfgtemplate to $configfile"
cp $cfgtemplate $configfile
echo "Setting $configfile permissions to 0700 (needs to be written and contains plaintext credentials)"
chmod 0700 $configfile
if [ ! -f ${cfg.configFile} ]; then
echo "${cfg.configFile} not found. Copying default config $cfgtemplate to ${cfg.configFile}"
install -m 0700 $cfgtemplate ${cfg.configFile}
echo "Setting temporary \$MAINDIR variable in default config required in order to allow nzbget to complete initial start"
echo "Remember to change this to a proper value once NZBGet startup has been completed"
sed -i -e 's/MainDir=.*/MainDir=\/tmp/g' $configfile
}
echo "Ensuring proper ownership of $datadir (${cfg.user}:${cfg.group})."
chown -R ${cfg.user}:${cfg.group} $datadir
sed -i -e 's/MainDir=.*/MainDir=\/tmp/g' ${cfg.configFile}
fi
'';
script = ''
configfile=${cfg.dataDir}/nzbget.conf
args="--daemon --configfile $configfile"
# The script in preStart (above) copies nzbget's config template to datadir on first run, containing paths that point to the nzbget derivation installed at the time.
# These paths break when nzbget is upgraded & the original derivation is garbage collected. If such broken paths are found in the config file, override them to point to
args="--daemon --configfile ${cfg.configFile}"
# The script in preStart (above) copies nzbget's config template to datadir on first run, containing paths that point to the nzbget derivation installed at the time.
# These paths break when nzbget is upgraded & the original derivation is garbage collected. If such broken paths are found in the config file, override them to point to
# the currently installed nzbget derivation.
cfgfallback () {
local hit=`grep -Po "(?<=^$1=).*+" "$configfile" | sed 's/[ \t]*$//'` # Strip trailing whitespace
local hit=`grep -Po "(?<=^$1=).*+" "${cfg.configFile}" | sed 's/[ \t]*$//'` # Strip trailing whitespace
( test $hit && test -e $hit ) || {
echo "In $configfile, valid $1 not found; falling back to $1=$2"
echo "In ${cfg.configFile}, valid $1 not found; falling back to $1=$2"
args+=" -o $1=$2"
}
}
@ -93,6 +89,8 @@ in {
'';
serviceConfig = {
StateDirectory = dataDir;
StateDirectoryMode = "0700";
Type = "forking";
User = cfg.user;
Group = cfg.group;