reworked systemd_unit task in action

1 files changed, 12 insertions, 7 deletions

diff --git a/actions b/actions
index 22af37c..487cf22 100755
--- a/actions
+++ b/actions
@@ -59,7 +59,7 @@ check_manifest () {
     perl -nE 'chomp; say if $_ && !-e' MANIFEST
 }
 
-help_text="$help_text  list_deps\t[module=JWebmail]\tlists all non core dependencies of a module (default=JWebmail)\n"
+help_text="$help_text  list_deps\t[module=JWebmail]\tlists all non core dependencies of a module\n"
 list_deps () {
     module=${1:-JWebmail}
     core="$(corelist -v v5.34.1 | awk '{ print $1 }')"
@@ -95,12 +95,17 @@ rust_extract () {
     cd ..
 }
 
-help_text="$help_text  systemd_unit\t[[name user working_dir]]\tcreates a systemd unit file\n"
+help_text="$help_text  systemd_unit\t[path=/etc/systemd/system/\$JWM_NAME.service] env(JWM_{NAME,USER,HOME,LOG_LEVEL})\tcreates a systemd unit file\n"
 systemd_unit () {
-    export JWM_NAME=${1-jwebmail}
-    export JWM_USER=${2-$USER}
-    export JWM_HOME=${3-$(pwd)}
-    perl -pe 's/\$(\w+)/$ENV{$1}/ga' jwebmail.service.tmpl
+    : "${JWM_NAME=jwebmail}" "${JWM_USER=$USER}" "${JWM_HOME=$(pwd)}" "${JWM_LOG_LEVEL=info}"
+    export JWM_NAME JWM_USER JWM_HOME JWM_LOG_LEVEL
+
+    cmd='perl -pe s/\$(\w+)/$ENV{$1}/ga jwebmail.service.tmpl'
+    path=${1-/etc/systemd/system/$JWM_NAME.service}
+    if [ "$path" = '-' ]
+    then $cmd
+    else $cmd >|"$path"
+    fi
 }
 
 help_text="$help_text  compile_python\t[]\tprepare python bytecode files\n"
@@ -111,7 +116,7 @@ compile_python () {
 help () {
     echo "The following actions are available:"
     echo
-    printf "$help_text" | expand -t 22,50
+    printf "$help_text" | expand -t 22,43
     echo
 }