new: [monujo] support un-managed code version

External access and process can come and modify code without fearing of being
replaced at each ``compose up``.

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

monujo/README.org

@@ -63,6 +63,19 @@ odoo:
         dbname: foo
 #+end_src
 
+If you don't want an active forcing on monujo configuration file, you
+can set option =enforce-config= to =false=. This will ensure that
+whatever is already deployed in the internal directory, it won't be
+replaced by the charm on next =compose up=.
+
+#+begin_src yaml
+monujo:
+  options:
+    version: 1.0.0-rc.3
+    enforce-config: false
+
+odoo:
+#+end_src
 
 ** Map
 
@@ -160,3 +173,18 @@ monujo:
 
 odoo:
 #+end_src
+
+If you don't want an active forcing on the version, you can set option
+=enforce-version= to =false=. This will ensure that whatever is already
+deployed in the internal directory, it won't be replaced by the charm
+on next =compose up=.
+
+#+begin_src yaml
+monujo:
+  options:
+    version: 1.0.0-rc.3
+    enforce-version: false
+
+odoo:
+#+end_src
+

monujo/hooks/init

@@ -15,8 +15,10 @@
 set -e
 
 version=$(options-get version 2>/dev/null)
+enforce_version=$(options-get enforce-version 2>/dev/null)
+enforce_config=$(options-get enforce-config 2>/dev/null)
 
-monujo:code_init "$version"
+monujo:code_init "$version" "$enforce_version"
 
-monujo:code_config_base
+monujo:code_config_base "$enforce_config"
 

monujo/lib/common

@@ -8,11 +8,16 @@ CONFIGFILE="$LOCATION/config.json"
 
 
 monujo:code_init() {
-    local version="$1"
+    local version="$1" enforce_version="$2"
     if [ -e "$LOCATION/.version" ] && \
            [ "$(cat "$LOCATION/.version")" == "$version" ]; then
         return 0
     fi
+    if [[ "${enforce_version,,}" =~ ^(false|0|no)$ ]]; then
+        if [ -d "$LOCATION" ]; then
+            return 0
+        fi
+    fi
     [ -d "$LOCATION" ] && rm -rf "$LOCATION"
     mkdir -p "$LOCATION"
     cd "$LOCATION"
@@ -35,13 +40,20 @@ export MONUJO_OPTIONS=(
     local-password-retention-time:numeric
     theme:struct\*
     version:ignore
+    enforce-version:ignore
+    enforce-config:ignore
 )
 
 export MONUJO_OPTIONS_CONCAT=" ${MONUJO_OPTIONS[*]} "
 
 
 monujo:code_config_base() {
-    local service_def
+    local enforce_config="$1" service_def
+    if [[ "${enforce_config,,}" =~ ^(false|0|no)$ ]]; then
+        if [ -e "$CONFIGFILE" ]; then
+            return 0
+        fi
+    fi
     service_def=$(get_compose_service_def "$SERVICE_NAME") || return 1
     options=$(e "$service_def" | shyaml get-value -y options) || true
 

monujo/metadata.yml

@@ -4,6 +4,8 @@ subordinate: true
 
 default-options:
   version: 1.0.0-rc.3
+  enforce-version: true
+  enforce-config: true
 
 uses:
   publish-dir: