helpers2.1: Remove the --foo_version arg for go, mongodb, nodejs, php, ruby helpers. Just use the global $foo_version which should be defined as global

helpers/helpers.v2.1.d/go

@@ -52,7 +52,8 @@ export GOENV_ROOT="$goenv_install_dir"
 #
 # Requires YunoHost version 3.2.2 or higher.
 ynh_use_go () {
-    go_version=$(ynh_app_setting_get --key=go_version)
+
+    [[ -n "${go_version:-}" ]] || ynh_die --message="\$go_version should be defined prior to calling ynh_use_go"
 
     # Get the absolute path of this version of Go
     go_path="$go_version_path/$go_version/bin"
@@ -77,9 +78,9 @@ ynh_use_go () {
     popd
 }
 
-# Install a specific version of Go
+# Install a specific version of Go using goenv
 #
-# ynh_install_go will install the version of Go provided as argument by using goenv.
+# The installed version is defined by $nodejs_version which should be defined as global prior to calling this helper
 #
 # This helper creates a /etc/profile.d/goenv.sh that configures PATH environment for goenv
 # for every LOGIN user, hence your user must have a defined shell (as opposed to /usr/sbin/nologin)
@@ -89,16 +90,12 @@ ynh_use_go () {
 # When not possible (e.g. in systemd service definition), please use direct path
 # to goenv shims (e.g. $goenv_ROOT/shims/bundle)
 #
-# usage: ynh_install_go --go_version=go_version
-# | arg: -v, --go_version= - Version of go to install.
+# usage: ynh_install_go
 #
 # Requires YunoHost version 3.2.2 or higher.
 ynh_install_go () {
-    # ============ Argument parsing =============
-    local -A args_array=( [v]=go_version= )
-    local go_version
-    ynh_handle_getopts_args "$@"
-    # ===========================================
+
+    [[ -n "${go_version:-}" ]] || ynh_die --message="\$go_version should be defined prior to calling ynh_install_go"
 
     # Load goenv path in PATH
     local CLEAR_PATH="$goenv_install_dir/bin:$PATH"
@@ -160,6 +157,7 @@ ynh_install_go () {
 
     # Store go_version into the config of this app
     ynh_app_setting_set --app="$app" --key="go_version" --value="$final_go_version"
+    go_version=$final_go_version
 
     # Cleanup Go versions
     ynh_cleanup_go

helpers/helpers.v2.1.d/mongodb

@@ -215,17 +215,13 @@ ynh_mongo_remove_db() {
 
 # Install MongoDB and integrate MongoDB service in YunoHost
 #
-# usage: ynh_install_mongo [--mongo_version=mongo_version]
-# | arg: -m, --mongo_version=        - Version of MongoDB to install
+# The installed version is defined by $mongo_version which should be defined as global prior to calling this helper
 #
+# usage: ynh_install_mongo
 #
 ynh_install_mongo() {
-    # ============ Argument parsing =============
-    local -A args_array=([m]=mongo_version=)
-    local mongo_version
-    ynh_handle_getopts_args "$@"
-    mongo_version="${mongo_version:-$YNH_MONGO_VERSION}"
-    # ===========================================
+
+    [[ -n "${mongo_version:-}" ]] || ynh_die --message="\$mongo_version should be defined prior to calling ynh_install_mongo"
 
     ynh_print_info --message="Installing MongoDB Community Edition ..."
     local mongo_debian_release=$(ynh_get_debian_release)

helpers/helpers.v2.1.d/nodejs

@@ -46,11 +46,11 @@ export N_PREFIX="$n_install_dir"
 #
 # 2 other variables are also available
 #   - $nodejs_path: The absolute path to node binaries for the chosen version.
-#   - $nodejs_version: Just the version number of node for this app. Stored as 'nodejs_version' in settings.yml.
 #
 # Requires YunoHost version 2.7.12 or higher.
 ynh_use_nodejs() {
-    nodejs_version=$(ynh_app_setting_get --key=nodejs_version)
+
+    [[ -n "${nodejs_version:-}" ]] || ynh_die --message="\$nodejs_version should be defined prior to calling ynh_install_nodejs"
 
     # Get the absolute path of this version of node
     nodejs_path="$node_version_path/$nodejs_version/bin"
@@ -78,12 +78,11 @@ ynh_use_nodejs() {
     export COREPACK_ENABLE_DOWNLOAD_PROMPT=0
 }
 
-# Install a specific version of nodejs
+# Install a specific version of nodejs, using 'n'
 #
-# ynh_install_nodejs will install the version of node provided as argument by using n.
+# The installed version is defined by $nodejs_version which should be defined as global prior to calling this helper
 #
-# usage: ynh_install_nodejs --nodejs_version=nodejs_version
-# | arg: -n, --nodejs_version=      - Version of node to install. When possible, your should prefer to use major version number (e.g. 8 instead of 8.10.0). The crontab will then handle the update of minor versions when needed.
+# usage: ynh_install_nodejs
 #
 # `n` (Node version management) uses the `PATH` variable to store the path of the version of node it is going to use.
 # That's how it changes the version
@@ -94,11 +93,7 @@ ynh_use_nodejs() {
 ynh_install_nodejs() {
     # Use n, https://github.com/tj/n to manage the nodejs versions
 
-    # ============ Argument parsing =============
-    local -A args_array=([n]=nodejs_version=)
-    local nodejs_version
-    ynh_handle_getopts_args "$@"
-    # ===========================================
+    [[ -n "${nodejs_version:-}" ]] || ynh_die --message="\$nodejs_version should be defined prior to calling ynh_install_nodejs"
 
     # Create $n_install_dir
     mkdir --parents "$n_install_dir"
@@ -164,7 +159,8 @@ ynh_install_nodejs() {
 #
 # Requires YunoHost version 2.7.12 or higher.
 ynh_remove_nodejs() {
-    nodejs_version=$(ynh_app_setting_get --key=nodejs_version)
+
+    [[ -n "${nodejs_version:-}" ]] || ynh_die --message="\$nodejs_version should be defined prior to calling ynh_install_nodejs"
 
     # Remove the line for this app
     sed --in-place "/$YNH_APP_INSTANCE_NAME:$nodejs_version/d" "$n_install_dir/ynh_app_version"

helpers/helpers.v2.1.d/php

@@ -304,6 +304,8 @@ ynh_composer_exec() {
 
 # Install and initialize Composer in the given directory
 #
+# The installed version is defined by $composer_version which should be defined as global prior to calling this helper
+#
 # usage: ynh_install_composer [--workdir=$install_dir] [--install_args="--optimize-autoloader"]
 # | arg: -w, --workdir - The directory from where the command will be executed. Default $install_dir.
 # | arg: -a, --install_args - Additional arguments provided to the composer install. Argument --no-dev already include

helpers/helpers.v2.1.d/ruby

@@ -51,7 +51,8 @@ fi
 #
 # Requires YunoHost version 3.2.2 or higher.
 ynh_use_ruby () {
-    ruby_version=$(ynh_app_setting_get --key=ruby_version)
+
+    [[ -n "${ruby_version:-}" ]] || ynh_die --message="\$ruby_version should be defined prior to calling ynh_use_ruby"
 
     # Get the absolute path of this version of Ruby
     ruby_path="$ruby_version_path/$YNH_APP_INSTANCE_NAME/bin"
@@ -79,9 +80,9 @@ ynh_use_ruby () {
     popd
 }
 
-# Install a specific version of Ruby
+# Install a specific version of Ruby using rbenv
 #
-# ynh_install_ruby will install the version of Ruby provided as argument by using rbenv.
+# The installed version is defined by $ruby_version which should be defined as global prior to calling this helper
 #
 # This helper creates a /etc/profile.d/rbenv.sh that configures PATH environment for rbenv
 # for every LOGIN user, hence your user must have a defined shell (as opposed to /usr/sbin/nologin)
@@ -91,16 +92,12 @@ ynh_use_ruby () {
 # When not possible (e.g. in systemd service definition), please use direct path
 # to rbenv shims (e.g. $RBENV_ROOT/shims/bundle)
 #
-# usage: ynh_install_ruby --ruby_version=ruby_version
-# | arg: -v, --ruby_version= - Version of ruby to install.
+# usage: ynh_install_ruby
 #
 # Requires YunoHost version 3.2.2 or higher.
 ynh_install_ruby () {
-    # ============ Argument parsing =============
-    local -A args_array=( [v]=ruby_version= )
-    local ruby_version
-    ynh_handle_getopts_args "$@"
-    # ===========================================
+
+    [[ -n "${ruby_version:-}" ]] || ynh_die --message="\$ruby_version should be defined prior to calling ynh_install_ruby"
 
     # Load rbenv path in PATH
     local CLEAR_PATH="$rbenv_install_dir/bin:$PATH"
@@ -207,6 +204,7 @@ ynh_install_ruby () {
 
     # Store ruby_version into the config of this app
     ynh_app_setting_set --key=ruby_version --value=$final_ruby_version
+    ruby_version=$final_ruby_version
 
     # Remove app virtualenv
     if rbenv alias --list | grep --quiet "$YNH_APP_INSTANCE_NAME "