--- a/frontends/src/jp/cmd_blog.py	Tue Dec 12 00:11:27 2017 +0100
+++ b/frontends/src/jp/cmd_blog.py	Tue Dec 12 00:12:44 2017 +0100
@@ -27,6 +27,7 @@
 from sat.tools.common import uri
 from sat.tools import config
 from ConfigParser import NoSectionError, NoOptionError
+from functools import partial
 import json
 import sys
 import os.path
@@ -34,6 +35,7 @@
 import time
 import tempfile
 import subprocess
+import codecs
 from sat.tools.common import data_format
 
 __commands__ = ["Blog"]
@@ -101,6 +103,72 @@
         return self.host.bridge.getParamA("Syntax", "Composition", "value", self.profile)
 
 
+class BlogPublishCommon(object):
+    """handle common option for publising commands (Set and Edit)"""
+
+    def add_parser_options(self):
+        self.addServiceNodeArgs()
+        self.parser.add_argument("-T", '--title', type=base.unicode_decoder, help=_(u"title of the item"))
+        self.parser.add_argument("-t", '--tag', type=base.unicode_decoder, action='append', help=_(u"tag (category) of your item"))
+        self.parser.add_argument("-C", "--comments", action='store_true', help=_(u"enable comments"))
+        self.parser.add_argument("-S", '--syntax', type=base.unicode_decoder, help=_(u"syntax to use (default: get profile's default syntax)"))
+
+    def setMbDataContent(self, content, mb_data):
+        if self.args.syntax is None:
+            # default syntax has been used
+            mb_data['content_rich'] =  content
+        elif self.current_syntax == SYNTAX_XHTML:
+            mb_data['content_xhtml'] = content
+        else:
+            mb_data['content_xhtml'] = self.host.bridge.syntaxConvert(content, self.current_syntax, SYNTAX_XHTML, False, self.profile)
+
+    def setMbDataFromArgs(self, mb_data):
+        """set microblog metadata according to command line options
+
+        if metadata already exist, it will be overwritten
+        """
+        mb_data['allow_comments'] = C.boolConst(self.args.comments)
+        if self.args.tag:
+            data_format.iter2dict('tag', self.args.tag, mb_data, check_conflict=False)
+        if self.args.title is not None:
+            mb_data['title'] = self.args.title
+
+
+class Set(base.CommandBase, BlogCommon, BlogPublishCommon):
+
+    def __init__(self, host):
+        base.CommandBase.__init__(self, host, 'set', help=_(u'publish a new blog item or update an existing one'))
+        BlogCommon.__init__(self, self.host)
+        BlogPublishCommon.__init__(self)
+        self.need_loop=True
+
+    def add_parser_options(self):
+        BlogPublishCommon.add_parser_options(self)
+        self.parser.add_argument("item", type=base.unicode_decoder, nargs='?', default=None, help=_(u"id of the item to publish"))
+
+    def mbSendCb(self):
+        self.disp(u"Item published")
+        self.host.quit(C.EXIT_OK)
+
+    def start(self):
+        common.checkURI(self.args)
+        self.pubsub_item = self.args.item
+        mb_data = {}
+        self.setMbDataFromArgs(mb_data)
+        content = codecs.getreader('utf-8')(sys.stdin).read()
+        self.setMbDataContent(content, mb_data)
+
+        self.host.bridge.mbSend(
+            self.args.service,
+            self.args.node,
+            mb_data,
+            self.profile,
+            callback=self.exitCb,
+            errback=partial(self.errback,
+                            msg=_(u"can't send item: {}"),
+                            exit_code=C.EXIT_BRIDGE_ERRBACK))
+
+
 class Get(base.CommandBase, BlogCommon):
     TEMPLATE = u"blog/articles.html"
 
@@ -283,21 +351,18 @@
             errback=self.mbGetEb)
 
 
-class Edit(base.CommandBase, BlogCommon, common.BaseEdit):
+class Edit(base.CommandBase, BlogCommon, BlogPublishCommon, common.BaseEdit):
 
     def __init__(self, host):
         base.CommandBase.__init__(self, host, 'edit', use_verbose=True, help=_(u'edit an existing or new blog post'))
         BlogCommon.__init__(self, self.host)
+        BlogPublishCommon.__init__(self)
         common.BaseEdit.__init__(self, self.host, BLOG_TMP_DIR, use_metadata=True)
 
     def add_parser_options(self):
-        self.addServiceNodeArgs()
-        self.parser.add_argument("item", type=base.unicode_decoder, nargs='?', default=u'new', help=_(u"URL of the item to edit, or keyword"))
+        BlogPublishCommon.add_parser_options(self)
         self.parser.add_argument("-P", "--preview", action="store_true", help=_(u"launch a blog preview in parallel"))
-        self.parser.add_argument("-T", '--title', type=base.unicode_decoder, help=_(u"title of the item"))
-        self.parser.add_argument("-t", '--tag', type=base.unicode_decoder, action='append', help=_(u"tag (category) of your item"))
-        self.parser.add_argument("--no-comment", action='store_true', help=_(u"disable comments"))
-        self.parser.add_argument("-S", '--syntax', type=base.unicode_decoder, help=_(u"syntax to use (default: get profile's default syntax)"))
+        self.parser.add_argument("item", type=base.unicode_decoder, nargs='?', default=u'new', help=_(u"URL of the item to edit, or keyword"))
         common.BaseEdit.add_parser_options(self)
 
     def buildMetadataFile(self, content_file_path, mb_data=None):
@@ -331,11 +396,7 @@
             except KeyError:
                 pass
         # and override metadata with command-line arguments
-        mb_data['allow_comments'] = C.boolConst(not self.args.no_comment)
-        if self.args.tag:
-            data_format.iter2dict('tag', self.args.tag, mb_data, check_conflict=False)
-        if self.args.title is not None:
-            mb_data['title'] = self.args.title
+        self.setMbDataFromArgs(mb_data)
 
         # then we create the file and write metadata there, as JSON dict
         # XXX: if we port jp one day on Windows, O_BINARY may need to be added here
@@ -364,13 +425,7 @@
         self.runEditor("blog_editor_args", content_file_path, content_file_obj, meta_file_path=meta_file_path, meta_ori=meta_ori)
 
     def publish(self, content, mb_data):
-        if self.args.syntax is None:
-            # default syntax has been used
-            mb_data['content_rich'] =  content
-        elif self.current_syntax == SYNTAX_XHTML:
-            mb_data['content_xhtml'] = content
-        else:
-            mb_data['content_xhtml'] = self.host.bridge.syntaxConvert(content, self.current_syntax, SYNTAX_XHTML, False, self.profile)
+        self.setMbDataContent(content, mb_data)
 
         if self.pubsub_item is not None:
             mb_data['id'] = self.pubsub_item
@@ -378,6 +433,7 @@
         self.host.bridge.mbSend(self.pubsub_service, self.pubsub_node, mb_data, self.profile)
         self.disp(u"Blog item published")
 
+
     def getTmpSuff(self):
         # we get current syntax to determine file extension
         if self.current_syntax is None:
@@ -648,7 +704,7 @@
 
 
 class Blog(base.CommandBase):
-    subcommands = (Get, Edit, Preview, Import)
+    subcommands = (Set, Get, Edit, Preview, Import)
 
     def __init__(self, host):
         super(Blog, self).__init__(host, 'blog', use_profile=False, help=_('blog/microblog management'))