[enh] Split app_remove action into service_add/remove

actionsmap/yunohost.yml

@@ -423,27 +423,6 @@ app:
                     help: Delete the key
                     action: store_true
 
-        ### app_service()
-        service:
-            action_help: Add or remove a YunoHost monitored service
-            api: POST /services
-            arguments:
-                service:
-                    help: Service to add/remove
-                -s:
-                    full: --status
-                    help: Custom status command
-                -l:
-                    full: --log
-                    help: Absolute path to log file to display
-                -r:
-                    full: --runlevel
-                    help: Runlevel priority of the service
-                -R:
-                    full: --remove
-                    help: Remove service
-                    action: store_true
-
         ### app_checkport()
         checkport:
             action_help: Check availability of a local port
@@ -707,6 +686,32 @@ service:
     category_help: Manage services
     actions:
 
+        ### service_add()
+        add:
+            action_help: Add a service
+            # api: POST /services
+            arguments:
+                name:
+                    help: Service name to add
+                -s:
+                    full: --status
+                    help: Custom status command
+                -l:
+                    full: --log
+                    help: Absolute path to log file to display
+                -r:
+                    full: --runlevel
+                    help: Runlevel priority of the service
+                    type: int
+
+        ### service_remove()
+        remove:
+            action_help: Remove a service
+            # api: DELETE /services
+            arguments:
+                name:
+                    help: Service name to remove
+
         ### service_start()
         start:
             action_help: Start one or more services

app.py

@@ -740,45 +740,6 @@ def app_setting(app, key, value=None, delete=False):
             yaml.safe_dump(app_settings, f, default_flow_style=False)
 
 
-def app_service(service, status=None, log=None, runlevel=None, remove=False):
-    """
-    Add or remove a YunoHost monitored service
-
-    Keyword argument:
-        service -- Service to add/remove
-        status -- Custom status command
-        log -- Absolute path to log file to display
-        runlevel -- Runlevel priority of the service
-        remove -- Remove service
-
-    """
-    service_file = '/etc/yunohost/services.yml'
-
-    try:
-        with open(service_file) as f:
-            services = yaml.load(f)
-    except IOError:
-        # Do not fail if service file is not there
-        services = {}
-
-    if remove and service in services:
-        del services[service]
-    else:
-        if status is None:
-            services[service] = { 'status': 'service' }
-        else:
-            services[service] = { 'status': status }
-
-    if log is not None:
-        services[service]['log'] = log
-
-    if runlevel is not None:
-        services[service]['runlevel'] = runlevel
-
-    with open(service_file, 'w') as f:
-        yaml.safe_dump(services, f, default_flow_style=False)
-
-
 def app_checkport(port):
     """
     Check availability of a local port

locales/en.json

@@ -85,6 +85,10 @@
     "monitor_glances_con_failed" : "Unable to connect to Glances server",
 
     "service_unknown" : "Unknown service '%s'",
+    "service_add_failed" : "Unable to add service '%s'",
+    "service_added" : "Service successfully added",
+    "service_remove_failed" : "Unable to remove service '%s'",
+    "service_removed" : "Service successfully removed",
     "service_start_failed" : "Unable to start service '%s'",
     "service_already_started" : "Service '%s' is already started",
     "service_started" : "Service '%s' successfully started",

service.py

@@ -32,6 +32,61 @@ import os.path
 from moulinette.core import MoulinetteError
 
 
+def service_add(name, status=None, log=None, runlevel=None):
+    """
+    Add a custom service
+
+    Keyword argument:
+        name -- Service name to add
+        status -- Custom status command
+        log -- Absolute path to log file to display
+        runlevel -- Runlevel priority of the service
+
+    """
+    services = _get_services()
+
+    if not status:
+        services[name] = { 'status': 'service' }
+    else:
+        services[name] = { 'status': status }
+
+    if log is not None:
+        services[name]['log'] = log
+
+    if runlevel is not None:
+        services[name]['runlevel'] = runlevel
+
+    try:
+        _save_services(services)
+    except:
+        raise MoulinetteError(errno.EIO, m18n.n('service_add_failed') % name)
+
+    msignals.display(m18n.n('service_added'), 'success')
+
+
+def service_remove(name):
+    """
+    Remove a custom service
+
+    Keyword argument:
+        name -- Service name to remove
+
+    """
+    services = _get_services()
+
+    try:
+        del services[name]
+    except KeyError:
+        raise MoulinetteError(errno.EINVAL, m18n.n('service_unknown') % name)
+
+    try:
+        _save_services(services)
+    except:
+        raise MoulinetteError(errno.EIO, m18n.n('service_remove_failed') % name)
+
+    msignals.display(m18n.n('service_removed'), 'success')
+
+
 def service_start(names):
     """
     Start one or more services
@@ -238,10 +293,25 @@ def _get_services():
     Get a dict of managed services with their parameters
 
     """
-    with open('/etc/yunohost/services.yml', 'r') as f:
-        services = yaml.load(f)
-    return services
+    try:
+        with open('/etc/yunohost/services.yml', 'r') as f:
+            services = yaml.load(f)
+    except:
+        return {}
+    else:
+        return services
 
+def _save_services(services):
+    """
+    Save managed services to files
+
+    Keyword argument:
+        services -- A dict of managed services with their parameters
+
+    """
+    # TODO: Save to custom services.yml
+    with open('/etc/yunohost/services.yml', 'w') as f:
+        yaml.safe_dump(services, f, default_flow_style=False)
 
 def _tail(file, n, offset=None):
     """