From 775321f881afa04dbfb567fce1c1312eda0e5580 Mon Sep 17 00:00:00 2001
From: Fabian Wilkens <wilkens.fabian+github@gmail.com>
Date: Wed, 5 May 2021 19:55:13 +0200
Subject: [PATCH] Update to ynh_install_ruby__2

---
 conf/systemd.service        |   2 +-
 scripts/install             |  21 +--
 scripts/remove              |   2 +-
 scripts/restore             |   9 +-
 scripts/upgrade             |  21 +--
 scripts/ynh_install_ruby    | 143 -----------------
 scripts/ynh_install_ruby__2 | 304 ++++++++++++++++++++++++++++++++++++
 7 files changed, 336 insertions(+), 166 deletions(-)
 delete mode 100644 scripts/ynh_install_ruby
 create mode 100644 scripts/ynh_install_ruby__2

diff --git a/conf/systemd.service b/conf/systemd.service
index 0a72659..e1b403b 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -8,7 +8,7 @@ User=__APP__
 Group=__APP__
 EnvironmentFile=__FINALPATH__/live/.env
 WorkingDirectory=__FINALPATH__/live/
-ExecStart=/opt/rbenv/versions/__RUBY_VERSION__/bin/bundle exec puma -C config/puma.rb -p __PORT__ -e production
+ExecStart=__RBENV_ROOT__/versions/__APP__/bin/bundle exec puma -C config/puma.rb -p __PORT__ -e production
 StandardOutput=append:/var/log/__APP__/snweb.log
 StandardError=append:/var/log/__APP__/snweb.log
 SyslogIdentifier=__APP__
diff --git a/scripts/install b/scripts/install
index 6052d09..5a6f906 100644
--- a/scripts/install
+++ b/scripts/install
@@ -7,7 +7,7 @@
 #=================================================
 
 source _common.sh
-source ynh_install_ruby
+source ynh_install_ruby__2
 source /usr/share/yunohost/helpers
 
 #=================================================
@@ -74,6 +74,7 @@ ynh_script_progression --message="Installing dependencies..." --weight=30
 ynh_install_app_dependencies $pkg_dependencies
 ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
 ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"
+ynh_install_ruby --ruby_version=$RUBY_VERSION
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
@@ -110,9 +111,11 @@ ynh_system_user_create --username=$app --home_dir=$final_path
 #=================================================
 ynh_script_progression --message="Installing Ruby... ( This may take a while... )" --weight=100 #212
 
-ynh_install_ruby --ruby_version=$RUBY_VERSION
-/opt/rbenv/versions/$RUBY_VERSION/bin/gem update --system --no-document --quiet
-/opt/rbenv/versions/$RUBY_VERSION/bin/gem install bundler --no-document --quiet
+pushd "$final_path/live"
+	ynh_use_ruby
+	ynh_gem update --system --no-document --quiet
+	ynh_gem install bundler --no-document --quiet
+popd
 
 #=================================================
 # MODIFY A CONFIG FILE
@@ -141,12 +144,12 @@ chown -R $app: "$final_path"
 
 pushd "$final_path/live"
     ynh_use_nodejs
-    exec_as $app /opt/rbenv/versions/$RUBY_VERSION/bin/bundle config set --local path 'vendor/bundle'
-    exec_as $app /opt/rbenv/versions/$RUBY_VERSION/bin/bundle config set with 'development'
-    exec_as $app /opt/rbenv/versions/$RUBY_VERSION/bin/bundle install -j$(getconf _NPROCESSORS_ONLN) --quiet
+    exec_as $app $ynh_ruby_load_path bin/bundle config set --local path 'vendor/bundle'
+    exec_as $app $ynh_ruby_load_path bin/bundle config set with 'development'
+    exec_as $app $ynh_ruby_load_path bin/bundle install -j$(getconf _NPROCESSORS_ONLN) --quiet
     exec_as $app env PATH=$ynh_node_load_PATH yarn install --pure-lockfile
     exec_as $app env PATH=$ynh_node_load_PATH yarn bundle
-    exec_as $app /opt/rbenv/versions/$RUBY_VERSION/bin/bundle exec rails assets:precompile --quiet
+    exec_as $app $ynh_ruby_load_path bin/bundle exec rails assets:precompile --quiet
 popd
 
 #=================================================
@@ -158,7 +161,7 @@ ynh_script_progression --message="Configuring a systemd service..." --weight=3
 # Create a dedicated systemd config
 ynh_add_systemd_config --others_var="\
     port \
-    RUBY_VERSION \
+    RBENV_ROOT \
 "
 
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 4b5c621..6226538 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -7,7 +7,7 @@
 #=================================================
 
 source _common.sh
-source ynh_install_ruby
+source ynh_install_ruby__2
 source /usr/share/yunohost/helpers
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index feca86f..02468b8 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -8,7 +8,7 @@
 
 #Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
 source ../settings/scripts/_common.sh
-source ../settings/scripts/ynh_install_ruby
+source ../settings/scripts/ynh_install_ruby__2
 source /usr/share/yunohost/helpers
 
 #=================================================
@@ -88,8 +88,11 @@ ynh_install_app_dependencies $pkg_dependencies
 ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
 ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"
 ynh_install_ruby --ruby_version=$RUBY_VERSION
-/opt/rbenv/versions/$RUBY_VERSION/bin/gem update --system --no-document --quiet
-/opt/rbenv/versions/$RUBY_VERSION/bin/gem install bundler --no-document --quiet
+pushd "$final_path/live"
+	ynh_use_ruby
+	ynh_gem update --system --no-document --quiet
+	ynh_gem install bundler --no-document --quiet
+popd
 
 #=================================================
 # RESTORE USER RIGHTS
diff --git a/scripts/upgrade b/scripts/upgrade
index 5fbf510..f069f1a 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -7,7 +7,7 @@
 #=================================================
 
 source _common.sh
-source ynh_install_ruby
+source ynh_install_ruby__2
 source /usr/share/yunohost/helpers
 
 #=================================================
@@ -84,6 +84,7 @@ ynh_script_progression --message="Upgrading dependencies..." --weight=37
 ynh_install_app_dependencies $pkg_dependencies
 ynh_install_nodejs --nodejs_version=$NODEJS_VERSION
 ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"
+ynh_install_ruby --ruby_version=$RUBY_VERSION
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
@@ -135,9 +136,11 @@ ynh_system_user_create --username=$app --home_dir=$final_path
 #=================================================
 ynh_script_progression --message="Installing Ruby... ( This may take a while... )"  --weight=100 #331
 
-ynh_install_ruby --ruby_version=$RUBY_VERSION
-/opt/rbenv/versions/$RUBY_VERSION/bin/gem update --system --no-document --quiet
-/opt/rbenv/versions/$RUBY_VERSION/bin/gem install bundler --no-document --quiet
+pushd "$final_path/live"
+	ynh_use_ruby
+	ynh_gem update --system --no-document --quiet
+	ynh_gem install bundler --no-document --quiet
+popd
 
 #=================================================
 # MODIFY A CONFIG FILE
@@ -170,12 +173,12 @@ then
 
     pushd "$final_path/live"
         ynh_use_nodejs
-        exec_as $app /opt/rbenv/versions/$RUBY_VERSION/bin/bundle config set --local path 'vendor/bundle'
-        exec_as $app /opt/rbenv/versions/$RUBY_VERSION/bin/bundle config set with 'development'
-        exec_as $app /opt/rbenv/versions/$RUBY_VERSION/bin/bundle install -j$(getconf _NPROCESSORS_ONLN) --quiet
+        exec_as $app $ynh_ruby_load_path bin/bundle config set --local path 'vendor/bundle'
+        exec_as $app $ynh_ruby_load_path bin/bundle config set with 'development'
+        exec_as $app $ynh_ruby_load_path bin/bundle install -j$(getconf _NPROCESSORS_ONLN) --quiet
         exec_as $app env PATH=$ynh_node_load_PATH yarn install --pure-lockfile
         exec_as $app env PATH=$ynh_node_load_PATH yarn bundle
-        exec_as $app /opt/rbenv/versions/$RUBY_VERSION/bin/bundle exec rails assets:precompile --quiet
+        exec_as $app $ynh_ruby_load_path bin/bundle exec rails assets:precompile --quiet
     popd
 fi
 
@@ -187,7 +190,7 @@ ynh_script_progression --message="Upgrading systemd configuration..." --weight=4
 # Create a dedicated systemd config
 ynh_add_systemd_config --others_var="\
     port \
-    RUBY_VERSION \
+    RBENV_ROOT \
 "
 
 #=================================================
diff --git a/scripts/ynh_install_ruby b/scripts/ynh_install_ruby
deleted file mode 100644
index c954a01..0000000
--- a/scripts/ynh_install_ruby
+++ /dev/null
@@ -1,143 +0,0 @@
-#!/bin/bash
-
-# Need also the helper https://github.com/YunoHost-Apps/Experimental_helpers/blob/master/ynh_handle_getopts_args/ynh_handle_getopts_args
-
-rbenv_install_dir="/opt/rbenv"
-# RBENV_ROOT is the directory of rbenv, it needs to be loaded as a environment variable.
-export RBENV_ROOT="$rbenv_install_dir"
-
-# Install ruby version management
-#
-# [internal]
-#
-# usage: ynh_install_rbenv
-ynh_install_rbenv () {
-  echo "Installation of rbenv - ruby version management" >&2
-  # Build an app.src for rbenv
-  mkdir -p "../conf"
-  echo "SOURCE_URL=https://github.com/rbenv/rbenv/archive/v1.1.2.tar.gz
-SOURCE_SUM=80ad89ffe04c0b481503bd375f05c212bbc7d44ef5f5e649e0acdf25eba86736" > "../conf/rbenv.src"
-  # Download and extract rbenv
-  ynh_setup_source "$rbenv_install_dir" rbenv
-
-  # Build an app.src for ruby-build
-  mkdir -p "../conf"
-  echo "SOURCE_URL=https://github.com/rbenv/ruby-build/archive/v20201210.tar.gz
-SOURCE_SUM=256c7c29afe9ec01850e788ce4e4f496a215ab10083ea7cc9cad6dd8f03b6c5e" > "../conf/ruby-build.src"
-  # Download and extract ruby-build
-  ynh_setup_source "$rbenv_install_dir/plugins/ruby-build" ruby-build
-
-  (cd $rbenv_install_dir
-  ./src/configure && make -C src)
-
-# Create shims directory if needed
-if [ ! -d $rbenv_install_dir/shims ] ; then
-  mkdir $rbenv_install_dir/shims
-fi
-}
-
-# Install a specific version of ruby
-#
-# ynh_install_ruby will install the version of ruby provided as argument by using rbenv.
-#
-# rbenv (ruby version management) stores the target ruby version in a .ruby_version file created in the target folder (using rbenv local <version>)
-# It then uses that information for every ruby user that uses rbenv provided ruby command
-#
-# 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)
-#
-# Don't forget to execute ruby-dependent command in a login environment
-# (e.g. sudo --login option)
-# When not possible (e.g. in systemd service definition), please use direct path
-# to rbenv shims (e.g. $RBENV_ROOT/shims/bundle)
-#
-# usage: ynh_install_ruby ruby_version user
-# | arg: -v, --ruby_version= - Version of ruby to install.
-#        If possible, prefer to use major version number (e.g. 8 instead of 8.10.0).
-#        The crontab will handle the update of minor versions when needed.
-ynh_install_ruby () {
-  # Declare an array to define the options of this helper.
-  declare -Ar args_array=( [v]=ruby_version= )
-  # Use rbenv, https://github.com/rbenv/rbenv to manage the ruby versions
-  local ruby_version
-  # Manage arguments with getopts
-  ynh_handle_getopts_args "$@"
-
-  # Create $rbenv_install_dir
-  mkdir -p "$rbenv_install_dir/plugins/ruby-build"
-
-  # Load rbenv path in PATH
-  CLEAR_PATH="$rbenv_install_dir/bin:$PATH"
-
-  # Remove /usr/local/bin in PATH in case of ruby prior installation
-  PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
-
-  # Move an existing ruby binary, to avoid to block rbenv
-  test -x /usr/bin/ruby && mv /usr/bin/ruby /usr/bin/ruby_rbenv
-
-  # If rbenv is not previously setup, install it
-  if ! type rbenv > /dev/null 2>&1
-  then
-    ynh_install_rbenv
-  elif dpkg --compare-versions "$(/opt/rbenv/bin/rbenv --version | cut -d" " -f2)" lt "1.1.2"
-  then
-    ynh_install_rbenv
-  fi
-
-  # Restore /usr/local/bin in PATH (if needed)
-  PATH=$CLEAR_PATH
-
-  # And replace the old ruby binary
-  test -x /usr/bin/ruby_rbenv && mv /usr/bin/ruby_rbenv /usr/bin/ruby
-
-  # Install the requested version of ruby
-  CONFIGURE_OPTS="--disable-install-doc" MAKE_OPTS="-j2" rbenv install --skip-existing $ruby_version
-
-  # Store the ID of this app and the version of ruby requested for it
-  echo "$YNH_APP_INSTANCE_NAME:$ruby_version" | tee --append "$rbenv_install_dir/ynh_app_version"
-
-  # Store ruby_version into the config of this app
-  ynh_app_setting_set $app ruby_version $ruby_version
-
-  # Set environment for ruby users
-  echo  "#rbenv
-export RBENV_ROOT=$rbenv_install_dir
-export PATH=\"$rbenv_install_dir/bin:$PATH\"
-eval \"\$(rbenv init -)\"
-#rbenv" > /etc/profile.d/rbenv.sh
-
-  # Load the right environment for the Installation
-  eval "$(rbenv init -)"
-
-  (cd $final_path
-  rbenv local $ruby_version)
-}
-
-# Remove the version of ruby used by the app.
-#
-# This helper will check if another app uses the same version of ruby,
-# if not, this version of ruby will be removed.
-# If no other app uses ruby, rbenv will be also removed.
-#
-# usage: ynh_remove_ruby
-ynh_remove_ruby () {
-  ruby_version=$(ynh_app_setting_get $app ruby_version)
-
-  # Remove the line for this app
-  sed --in-place "/$YNH_APP_INSTANCE_NAME:$ruby_version/d" "$rbenv_install_dir/ynh_app_version"
-
-  # If no other app uses this version of ruby, remove it.
-  if ! grep --quiet "$ruby_version" "$rbenv_install_dir/ynh_app_version"
-  then
-    $rbenv_install_dir/bin/rbenv uninstall --force $ruby_version
-  fi
-
-  # If no other app uses rbenv, remove rbenv and dedicated group
-  if [ ! -s "$rbenv_install_dir/ynh_app_version" ]
-  then
-    ynh_secure_remove "$rbenv_install_dir"
-
-    # Remove rbenv environment configuration
-    rm /etc/profile.d/rbenv.sh
-  fi
-}
diff --git a/scripts/ynh_install_ruby__2 b/scripts/ynh_install_ruby__2
new file mode 100644
index 0000000..32a8ff4
--- /dev/null
+++ b/scripts/ynh_install_ruby__2
@@ -0,0 +1,304 @@
+#!/bin/bash
+
+ynh_ruby_try_bash_extension() {
+  if [ -x src/configure ]; then
+    src/configure && make -C src || {
+      ynh_print_info --message="Optional bash extension failed to build, but things will still work normally."
+    }
+  fi
+}
+
+rbenv_install_dir="/opt/rbenv"
+ruby_version_path="$rbenv_install_dir/versions"
+# RBENV_ROOT is the directory of rbenv, it needs to be loaded as a environment variable.
+export RBENV_ROOT="$rbenv_install_dir"
+
+# Load the version of Ruby for an app, and set variables.
+#
+# ynh_use_ruby has to be used in any app scripts before using Ruby for the first time.
+# This helper will provide alias and variables to use in your scripts.
+#
+# To use gem or Ruby, use the alias `ynh_gem` and `ynh_ruby`
+# Those alias will use the correct version installed for the app
+# For example: use `ynh_gem install` instead of `gem install`
+#
+# With `sudo` or `ynh_exec_as`, use instead the fallback variables `$ynh_gem` and `$ynh_ruby`
+# And propagate $PATH to sudo with $ynh_ruby_load_path
+# Exemple: `ynh_exec_as $app $ynh_ruby_load_path $ynh_gem install`
+#
+# $PATH contains the path of the requested version of Ruby.
+# However, $PATH is duplicated into $ruby_path to outlast any manipulation of $PATH
+# You can use the variable `$ynh_ruby_load_path` to quickly load your Ruby version
+#  in $PATH for an usage into a separate script.
+# Exemple: $ynh_ruby_load_path $final_path/script_that_use_gem.sh`
+#
+#
+# Finally, to start a Ruby service with the correct version, 2 solutions
+#  Either the app is dependent of Ruby or gem, but does not called it directly.
+#  In such situation, you need to load PATH
+#    `Environment="__YNH_RUBY_LOAD_ENV_PATH__"`
+#    `ExecStart=__FINALPATH__/my_app`
+#     You will replace __YNH_RUBY_LOAD_ENV_PATH__ with $ynh_ruby_load_path
+#
+#  Or Ruby start the app directly, then you don't need to load the PATH variable
+#    `ExecStart=__YNH_RUBY__ my_app run`
+#     You will replace __YNH_RUBY__ with $ynh_ruby
+#
+#
+# one other variable is also available
+#   - $ruby_path: The absolute path to Ruby binaries for the chosen version.
+#
+# usage: ynh_use_ruby
+#
+# Requires YunoHost version 3.2.2 or higher.
+ynh_use_ruby () {
+    ruby_version=$(ynh_app_setting_get --app=$app --key=ruby_version)
+
+    # Get the absolute path of this version of Ruby
+    ruby_path="$ruby_version_path/$YNH_APP_INSTANCE_NAME/bin"
+
+    # Allow alias to be used into bash script
+    shopt -s expand_aliases
+
+    # Create an alias for the specific version of Ruby and a variable as fallback
+    ynh_ruby="$ruby_path/ruby"
+    alias ynh_ruby="$ynh_ruby"
+    # And gem
+    ynh_gem="$ruby_path/gem"
+    alias ynh_gem="$ynh_gem"
+
+    # Load the path of this version of Ruby in $PATH
+    if [[ :$PATH: != *":$ruby_path"* ]]; then
+        PATH="$ruby_path:$PATH"
+    fi
+    # Create an alias to easily load the PATH
+    ynh_ruby_load_path="PATH=$PATH"
+
+    # Sets the local application-specific Ruby version
+    pushd $final_path
+        $rbenv_install_dir/bin/rbenv local $ruby_version
+    popd
+}
+
+# Install a specific version of Ruby
+#
+# ynh_install_ruby will install the version of Ruby provided as argument by using rbenv.
+#
+# 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)
+#
+# Don't forget to execute ruby-dependent command in a login environment
+# (e.g. sudo --login option)
+# When not possible (e.g. in systemd service definition), please use direct path
+# to rbenv shims (e.g. $RBENV_ROOT/shims/bundle)
+#
+# usage: ynh_install_ruby --ruby_version=ruby_version
+# | arg: -v, --ruby_version= - Version of ruby to install.
+#
+# Requires YunoHost version 3.2.2 or higher.
+ynh_install_ruby () {
+    # Declare an array to define the options of this helper.
+    local legacy_args=v
+    local -A args_array=( [v]=ruby_version= )
+    local ruby_version
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    # Load rbenv path in PATH
+    local CLEAR_PATH="$rbenv_install_dir/bin:$PATH"
+
+    # Remove /usr/local/bin in PATH in case of Ruby prior installation
+    PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
+
+    # Move an existing Ruby binary, to avoid to block rbenv
+    test -x /usr/bin/ruby && mv /usr/bin/ruby /usr/bin/ruby_rbenv
+
+    # Install or update rbenv
+    rbenv="$(command -v rbenv $rbenv_install_dir/bin/rbenv | grep "$rbenv_install_dir/bin/rbenv" | head -1)"
+    if [ -n "$rbenv" ]; then
+        ynh_print_info --message="rbenv already seems installed in \`$rbenv'."
+        pushd "${rbenv%/*/*}"
+            if git remote -v 2>/dev/null | grep "https://github.com/rbenv/rbenv.git"; then
+                ynh_print_info --message="Trying to update with git..."
+                git pull -q --tags origin master
+                ynh_ruby_try_bash_extension
+            else
+                ynh_print_info --message="Reinstalling rbenv with git..."
+                cd ..
+                ynh_secure_remove --file=$rbenv_install_dir
+                mkdir -p $rbenv_install_dir
+                cd $rbenv_install_dir
+                git init -q
+                git remote add -f -t master origin https://github.com/rbenv/rbenv.git > /dev/null 2>&1
+                git checkout -q -b master origin/master
+                ynh_ruby_try_bash_extension
+                rbenv=$rbenv_install_dir/bin/rbenv
+            fi
+        popd
+    else
+        ynh_print_info --message="Installing rbenv with git..."
+        mkdir -p $rbenv_install_dir
+        pushd $rbenv_install_dir
+            git init -q
+            git remote add -f -t master origin https://github.com/rbenv/rbenv.git > /dev/null 2>&1
+            git checkout -q -b master origin/master
+            ynh_ruby_try_bash_extension
+            rbenv=$rbenv_install_dir/bin/rbenv
+        popd
+    fi
+
+    ruby_build="$(command -v "$rbenv_install_dir"/plugins/*/bin/rbenv-install rbenv-install | head -1)"
+    if [ -n "$ruby_build" ]; then
+        ynh_print_info --message="\`rbenv install' command already available in \`$ruby_build'."
+        pushd "${ruby_build%/*/*}"
+            if git remote -v 2>/dev/null | grep "https://github.com/rbenv/ruby-build.git"; then
+                ynh_print_info --message="Trying to update rbenv with git..."
+                git pull -q origin master
+            fi
+        popd
+    else
+        ynh_print_info --message="Installing ruby-build with git..."
+        mkdir -p "${rbenv_install_dir}/plugins"
+        git clone -q https://github.com/rbenv/ruby-build.git "${rbenv_install_dir}/plugins/ruby-build"
+    fi
+
+    rbenv_alias="$(command -v "$rbenv_install_dir"/plugins/*/bin/rbenv-alias rbenv-alias | head -1)"
+    if [ -n "$rbenv_alias" ]; then
+        ynh_print_info --message="\`rbenv alias' command already available in \`$rbenv_alias'."
+        pushd "${rbenv_alias%/*/*}"
+            if git remote -v 2>/dev/null | grep "https://github.com/tpope/rbenv-aliases.git"; then
+                ynh_print_info --message="Trying to update rbenv-aliases with git..."
+                git pull -q origin master
+            fi
+        popd
+    else
+        ynh_print_info --message="Installing rbenv-aliases with git..."
+        mkdir -p "${rbenv_install_dir}/plugins"
+        git clone -q https://github.com/tpope/rbenv-aliases.git "${rbenv_install_dir}/plugins/rbenv-aliase"
+    fi
+
+    rbenv_latest="$(command -v "$rbenv_install_dir"/plugins/*/bin/rbenv-latest rbenv-latest | head -1)"
+    if [ -n "$rbenv_latest" ]; then
+        ynh_print_info --message="\`rbenv latest' command already available in \`$rbenv_latest'."
+        pushd "${rbenv_latest%/*/*}"
+            if git remote -v 2>/dev/null | grep "https://github.com/momo-lab/xxenv-latest.git"; then
+                ynh_print_info --message="Trying to update xxenv-latest with git..."
+                git pull -q origin master
+            fi
+        popd
+    else
+        ynh_print_info --message="Installing xxenv-latest with git..."
+        mkdir -p "${rbenv_install_dir}/plugins"
+        git clone -q https://github.com/momo-lab/xxenv-latest.git "${rbenv_install_dir}/plugins/xxenv-latest"
+    fi
+
+    # Enable caching
+    mkdir -p "${rbenv_install_dir}/cache"
+
+    # Create shims directory if needed
+    mkdir -p "${rbenv_install_dir}/shims"
+
+    # Restore /usr/local/bin in PATH
+    PATH=$CLEAR_PATH
+
+    # And replace the old Ruby binary
+    test -x /usr/bin/ruby_rbenv && mv /usr/bin/ruby_rbenv /usr/bin/ruby
+
+    # Install the requested version of Ruby
+    local final_ruby_version=$(rbenv latest --print $ruby_version)
+    if ! [ -n "$final_ruby_version" ]; then
+        final_ruby_version=$ruby_version
+    fi
+    ynh_print_info --message="Installing Ruby-$final_ruby_version"
+    CONFIGURE_OPTS="--disable-install-doc --with-jemalloc" MAKE_OPTS="-j2" rbenv install --skip-existing $final_ruby_version > /dev/null 2>&1
+
+    # Store ruby_version into the config of this app
+    ynh_app_setting_set --app=$YNH_APP_INSTANCE_NAME --key=ruby_version --value=$final_ruby_version
+
+    # Remove app virtualenv
+    if  `rbenv alias --list | grep --quiet "$YNH_APP_INSTANCE_NAME " 1>/dev/null 2>&1`
+    then
+        rbenv alias $YNH_APP_INSTANCE_NAME --remove
+    fi
+
+    # Create app virtualenv
+    rbenv alias $YNH_APP_INSTANCE_NAME $final_ruby_version
+
+    # Cleanup Ruby versions
+    ynh_cleanup_ruby
+
+    # Set environment for Ruby users
+    echo  "#rbenv
+export RBENV_ROOT=$rbenv_install_dir
+export PATH=\"$rbenv_install_dir/bin:$PATH\"
+eval \"\$(rbenv init -)\"
+#rbenv" > /etc/profile.d/rbenv.sh
+
+    # Load the environment
+    eval "$(rbenv init -)"
+}
+
+# Remove the version of Ruby used by the app.
+#
+# This helper will also cleanup Ruby versions
+#
+# usage: ynh_remove_ruby
+ynh_remove_ruby () {
+    local ruby_version=$(ynh_app_setting_get --app=$YNH_APP_INSTANCE_NAME --key=ruby_version)
+
+    # Load rbenv path in PATH
+    local CLEAR_PATH="$rbenv_install_dir/bin:$PATH"
+
+    # Remove /usr/local/bin in PATH in case of Ruby prior installation
+    PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
+
+    rbenv alias $YNH_APP_INSTANCE_NAME --remove
+
+    # Remove the line for this app
+    ynh_app_setting_delete --app=$YNH_APP_INSTANCE_NAME --key=ruby_version
+
+    # Cleanup Ruby versions
+    ynh_cleanup_ruby
+}
+
+# Remove no more needed versions of Ruby used by the app.
+#
+# This helper will check what Ruby version are no more required,
+# and uninstall them
+# If no app uses Ruby, rbenv will be also removed.
+#
+# usage: ynh_cleanup_ruby
+ynh_cleanup_ruby () {
+
+    # List required Ruby versions
+    local installed_apps=$(yunohost app list | grep -oP 'id: \K.*$')
+    local required_ruby_versions=""
+    for installed_app in $installed_apps
+    do
+        local installed_app_ruby_version=$(ynh_app_setting_get --app=$installed_app --key="ruby_version")
+        if [[ $installed_app_ruby_version ]]
+        then
+            required_ruby_versions="${installed_app_ruby_version}\n${required_ruby_versions}"
+        fi
+    done
+
+    # Remove no more needed Ruby versions
+    local installed_ruby_versions=$(rbenv versions --bare --skip-aliases | grep -Ev '/')
+    for installed_ruby_version in $installed_ruby_versions
+    do
+        if ! `echo ${required_ruby_versions} | grep "${installed_ruby_version}" 1>/dev/null 2>&1`
+        then
+            ynh_print_info --message="Removing of Ruby-$installed_ruby_version"
+            $rbenv_install_dir/bin/rbenv uninstall --force $installed_ruby_version
+        fi
+    done
+
+    # If none Ruby version is required
+    if [[ ! $required_ruby_versions ]]
+    then
+        # Remove rbenv environment configuration
+        ynh_print_info --message="Removing of rbenv-$rbenv_version"
+        ynh_secure_remove --file="$rbenv_install_dir"
+        ynh_secure_remove --file="/etc/profile.d/rbenv.sh"
+    fi
+}