upgrade ynh_send_readme_to_admin helper

scripts/_common.sh

@@ -1,34 +1,50 @@
 #!/bin/bash
 
-send_readme_to_admin() {
-	app_message=$1
+# Send an email to inform the administrator
+#
+# usage: ynh_send_readme_to_admin app_message [recipients]
+# | arg: app_message - The message to send to the administrator.
+# | arg: recipients - The recipients of this email. Use spaces to separate multiples recipients. - default: root
+#	example: "root admin@domain"
+#	If you give the name of a YunoHost user, ynh_send_readme_to_admin will find its email adress for you
+#	example: "root admin@domain user1 user2"
+ynh_send_readme_to_admin() {
+	local app_message="${1:-...No specific information...}"
+	local recipients="${2:-root}"
 
-	if [[ -z $app_message ]]; then
-		ynh_die "Package shoud send basic info to the administrator"
+	# Retrieve the email of users
+	find_mails () {
+		local list_mails="$1"
+		local mail
+		local recipients=" "
+		# Read each mail in argument
+		for mail in $list_mails
+		do
+			# Keep root or a real email address as it is
+			if [ "$mail" = "root" ] || echo "$mail" | grep --quiet "@"
+			then
+				recipients="$recipients $mail"
+			else
+				# But replace an user name without a domain after by its email
+				if mail=$(ynh_user_get_info "$mail" "mail" 2> /dev/null)
+				then
+					recipients="$recipients $mail"
 				fi
+			fi
+		done
+		echo "$recipients"
+	}
+	recipients=$(find_mails "$recipients")
 
-	# list domains, select second line and extract the domain
-	# ynh_domain=$(yunohost domain list | sed -e '1d' -e '2q' | cut -d' ' -f4)
-	# ynh_admin="admin@$ynh_domain"
+	local mail_subject="☁️🆈🅽🅷☁️: \`$app\` was just installed!"
 
-	# list host, kernel, packages and system information
-	ynh_info=$(yunohost tools diagnosis | grep -B 100 "services:" | sed 's/services://')
-
-	mail_subject="☁️🆈🅽🅷☁️: \`$app\` was just installed!"
-	mail_message="
-This is an automated message from your beloved YunoHost server.
-
------
-Specific information for this application ($app)
------
+	local mail_message="This is an automated message from your beloved YunoHost server.
+Specific information for the application $app.
 $app_message
-
------
+---
 Automatic diagnosis data from YunoHost
------
-$ynh_info
-	"
+$(yunohost tools diagnosis | grep -B 100 "services:" | sed '/services:/d')"
 
-	# Email server admin - for ACTION
-	echo "$mail_message" | mail -s "$mail_subject" root -u root
+	# Send the email to the recipients
+	echo "$mail_message" | mail -a "Content-Type: text/plain; charset=UTF-8" -s "$mail_subject" "$recipients"
 }