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265 lines
8.7 KiB
265 lines
8.7 KiB
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#=================================================
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# COMMON VARIABLES
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#=================================================
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dependencies="php5-gd php5-json php5-intl php5-mcrypt php5-curl php5-apcu php5-imagick acl tar smbclient"
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#=================================================
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# COMMON HELPERS
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#=================================================
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# Execute a command with occ
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exec_occ() {
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(cd "$final_path" && exec_as "$app" \
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php occ --no-interaction --no-ansi "$@")
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}
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# Create the external storage for the home folders and enable sharing
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create_home_external_storage() {
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local mount_id=`exec_occ files_external:create --output=json \
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'Home' 'local' 'null::null' -c 'datadir=/home/$user' || true`
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! [[ $mount_id =~ ^[0-9]+$ ]] \
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&& echo "Unable to create external storage" >&2 \
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|| exec_occ files_external:option "$mount_id" enable_sharing true
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}
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# Rename a MySQL database and user
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# Usage: rename_mysql_db DBNAME DBUSER DBPASS NEW_DBNAME_AND_USER
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rename_mysql_db() {
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local db_name=$1 db_user=$2 db_pwd=$3 new_db_name=$4
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local sqlpath="/tmp/${db_name}-$(date '+%s').sql"
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# Dump the old database
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mysqldump -u "$db_user" -p"$db_pwd" --no-create-db "$db_name" > "$sqlpath"
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# Create the new database and user
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ynh_mysql_create_db "$new_db_name" "$new_db_name" "$db_pwd"
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ynh_mysql_connect_as "$new_db_name" "$db_pwd" "$new_db_name" < "$sqlpath"
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# Remove the old database
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ynh_mysql_remove_db $db_name $db_name
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ynh_secure_remove "$sqlpath"
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}
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#=================================================
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# COMMON HELPERS -- SHOULD BE ADDED TO YUNOHOST
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#=================================================
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# Execute a command as another user
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# usage: exec_as USER COMMAND [ARG ...]
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exec_as() {
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local USER=$1
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shift 1
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if [[ $USER = $(whoami) ]]; then
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eval "$@"
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else
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sudo -u "$USER" "$@"
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fi
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}
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# Check if an URL is already handled
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# usage: is_url_handled URL
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is_url_handled() {
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local output=($(curl -k -s -o /dev/null \
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-w 'x%{redirect_url} %{http_code}' "$1"))
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# It's handled if it does not redirect to the SSO nor return 404
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[[ ! ${output[0]} =~ \/yunohost\/sso\/ && ${output[1]} != 404 ]]
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}
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# ynh_handle_app_migration "ID FROM WHICH TO MIGRATE" "MIGRATION FILE"
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#
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# WARNING You have to replace manually any reference to a moved file in the settings.yml
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# Also for the config of the app or anything else that not handled by this helper.
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#
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ynh_handle_app_migration () {
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#=================================================
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# LOAD SETTINGS
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#=================================================
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old_app=$YNH_APP_INSTANCE_NAME
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local old_app_id=$YNH_APP_ID
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local old_app_number=$YNH_APP_INSTANCE_NUMBER
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# Get the id from which to migrate
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local migration_id="$1"
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# And the file with the paths to move
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local migration_list="$2"
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# Get the new app id in the manifest
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local new_app_id=$(grep \"id\": ../manifest.json | cut -d\" -f4)
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if [ $old_app_number -eq 1 ]; then
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local new_app=$new_app_id
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else
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local new_app=${new_app_id}__${old_app_number}
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fi
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#=================================================
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# CHECK IF IT HAS TO MIGRATE
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#=================================================
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migration_process=0
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if [ "$old_app_id" == "$new_app_id" ]
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then
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# If the 2 id are the same
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# No migration to do.
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echo 0
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return 0
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else
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if [ "$old_app_id" != "$migration_id" ]
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then
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# If the new app is not the authorized id, fail.
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ynh_die "Incompatible application for migration from $old_app_id to $new_app_id"
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fi
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echo "Migrate from $old_app_id to $new_app_id" >&2
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#=================================================
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# CHECK IF THE MIGRATION CAN BE DONE
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#=================================================
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# TODO Handle multi instance apps...
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# Check that there not already an app installed for this id.
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(yunohost app list --installed -f "$new_app" | grep -q id) \
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&& ynh_die "$new_app is already installed"
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#=================================================
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# CHECK THE LIST OF FILES TO MOVE
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#=================================================
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local temp_migration_list="$(tempfile)"
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# Build the list by removing blank lines and comment lines
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sed '/^#.*\|^$/d' "../conf/$migration_list" > "$temp_migration_list"
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# Check if there no files in the destination
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local file_to_move=""
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while read file_to_move
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do
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# Replace all occurence of $app by $new_app in each file to move.
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local move_to_destination="${file_to_move//\$app/$new_app}"
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test -e "$move_to_destination" && ynh_die "A file named $move_to_destination already exist."
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done < "$temp_migration_list"
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#=================================================
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# COPY THE YUNOHOST SETTINGS FOR THIS APP
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#=================================================
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local settings_dir="/etc/yunohost/apps"
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cp -a "$settings_dir/$old_app" "$settings_dir/$new_app"
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# Replace the old id by the new one
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ynh_replace_string "\(^id: .*\)$old_app" "\1$new_app" "$settings_dir/$new_app/settings.yml"
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# INFO: There a special behavior with yunohost app setting
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# if the id given in argument does not match with the id
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# stored in the config file. The config file will be purged.
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# That's why we use sed instead of app setting here.
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# https://github.com/YunoHost/yunohost/blob/c6b5284be8da39cf2da4e1036a730eb5e0515096/src/yunohost/app.py#L1316-L1321
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#=================================================
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# MOVE FILES TO THE NEW DESTINATION
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#=================================================
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while read file_to_move
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do
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# Replace all occurence of $app by $new_app in each file to move.
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move_to_destination="$(eval echo "${file_to_move//\$app/$new_app}")"
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local real_file_to_move="$(eval echo "${file_to_move//\$app/$old_app}")"
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echo "Move the file $real_file_to_move to $move_to_destination" >&2
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mv "$real_file_to_move" "$move_to_destination"
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done < "$temp_migration_list"
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#=================================================
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# UPDATE KNOWN FILES IN THE SETTINGS
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#=================================================
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# Replace nginx checksum
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ynh_replace_string "\(^checksum__etc_nginx.*\)_$old_app" "\1_$new_app/" "$settings_dir/$new_app/settings.yml"
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# Replace php5-fpm checksums
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ynh_replace_string "\(^checksum__etc_php5.*[-_]\)$old_app" "\1$new_app/" "$settings_dir/$new_app/settings.yml"
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# Replace final_path
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ynh_replace_string "\(^final_path: .*\)$old_app" "\1$new_app" "$settings_dir/$new_app/settings.yml"
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#=================================================
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# MOVE THE DATABASE
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#=================================================
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db_pwd=$(ynh_app_setting_get $old_app mysqlpwd)
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db_name=$(ynh_app_setting_get $old_app db_name)
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# Check if a database exist before trying to move it
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local mysql_root_password=$(cat $MYSQL_ROOT_PWD_FILE)
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if [ -n "$db_name" ] && mysqlshow -u root -p$mysql_root_password | grep -q "^| $db_name"
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then
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new_db_name=$(ynh_sanitize_dbid $new_app)
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echo "Rename the database $db_name to $new_db_name" >&2
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local sql_dump="/tmp/${db_name}-$(date '+%s').sql"
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# Dump the old database
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ynh_mysql_dump_db "$db_name" > "$sql_dump"
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# Create a new database
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ynh_mysql_setup_db $new_db_name $new_db_name $db_pwd
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# Then restore the old one into the new one
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ynh_mysql_connect_as $new_db_name $db_pwd $new_db_name < "$sql_dump"
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# Remove the old database
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ynh_mysql_remove_db $db_name $db_name
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# And the dump
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ynh_secure_remove "$sql_dump"
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# Update the value of $db_name
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db_name=$new_db_name
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ynh_app_setting_set $new_app db_name $db_name
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fi
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#=================================================
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# CREATE A NEW USER
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#=================================================
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# Check if the user exists on the system
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if ynh_system_user_exists "$old_app"
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then
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echo "Create a new user $new_app to replace $old_app" >&2
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ynh_system_user_create $new_app
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fi
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#=================================================
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# CHANGE THE FAKE DEPENDENCIES PACKAGE
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#=================================================
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# Check if a variable $dependencies exists
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# If this variable doesn't exist, this part shall be manage in the upgrade script.
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if [ -n "${dependencies:-}" ]
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then
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# Define the name of the package
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local old_package_name="${old_app//_/-}-ynh-deps"
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local new_package_name="${new_app//_/-}-ynh-deps"
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if ynh_package_is_installed "$old_package_name"
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then
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# Install a new fake package
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app=$new_app
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ynh_install_app_dependencies $dependencies
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# Then remove the old one
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app=$old_app
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ynh_remove_app_dependencies
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fi
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fi
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#=================================================
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# UPDATE THE ID OF THE APP
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#=================================================
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app=$new_app
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# Set migration_process to 1 to inform that an upgrade has been made
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migration_process=1
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fi
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}
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