Support to move one staging into another

osc staging select --move adi:26 adi:14

If move is given, all staging projects given after the first will
be seen as source

Fixes openSUSE#1105

docs/staging.asciidoc

@@ -165,6 +165,11 @@ osc staging select --move B 12345
 This command will move #12345 from openSUSE:Factory:Staging:A to
 openSUSE:Factory:Staging:B
 
+You can also merge staging projects by giving other staging projects as arguments:
+
+--------------------------------------------------------------------------------
+osc staging select --move B A C
+--------------------------------------------------------------------------------
 
 Unselect
 ~~~~~~~~

osc-staging.py

@@ -449,7 +449,9 @@ def do_staging(self, subcmd, opts, *args):
                 # special staging with a capital letter which makes them unique.
                 # lastly adi stagings are consistently prefix with adi: which
                 # also makes it consistent to distinguish them from request IDs.
-                if arg in existing_stagings and arg not in stagings:
+                #
+                # also support --move passing 2 or more staging projects to merge
+                if arg in existing_stagings and arg not in stagings and (len(stagings) == 0 and opts.move):
                     stagings.append(api.extract_staging_short(arg))
                 elif arg not in requests:
                     requests.append(arg)

osclib/request_finder.py

@@ -131,7 +131,7 @@ def find_request_project(self, source_project, newcand):
 
         return ret
 
-    def find(self, pkgs, newcand):
+    def find(self, pkgs, newcand, consider_stagings):
         """
         Search for all various mutations and return list of SR#s
         :param pkgs: mesh of argumets to search for
@@ -146,6 +146,8 @@ def find(self, pkgs, newcand):
                 continue
             if self.find_request_project(p, newcand):
                 continue
+            if consider_stagings and self.find_staging_project(p):
+                continue
             raise oscerr.WrongArgs('No SR# found for: {}'.format(p))
 
     def find_via_stagingapi(self, pkgs):
@@ -172,16 +174,32 @@ def find_via_stagingapi(self, pkgs):
             if not found:
                 raise oscerr.WrongArgs('No SR# found for: {}'.format(p))
 
+    def find_staging_project(self, project):
+        """
+        Check if project is an existing staging project. If so, return
+        all requests staged in it
+        """
+        project = self.api.prj_from_short(project)
+        url = self.api.makeurl(['staging', self.api.project, 'staging_projects', project], { 'requests': 1 })
+        try:
+            staging = ET.parse(self.api.retried_GET(url)).getroot()
+        except HTTPError:
+            return False
+        for request in staging.findall('staged_requests/request'):
+            self.srs[int(request.get('id'))] = {'staging': staging.get('name')}
+        return True
+
     @classmethod
-    def find_sr(cls, pkgs, api, newcand=False):
+    def find_sr(cls, pkgs, api, newcand=False, consider_stagings=False):
         """
         Search for all various mutations and return list of SR#s
         :param pkgs: mesh of argumets to search for
         :param api: StagingAPI instance
         :param newcand: the review state of staging-group must be new
+        :param consider_stagings: consider names of staging projects
         """
         finder = cls(api)
-        finder.find(pkgs, newcand)
+        finder.find(pkgs, newcand, consider_stagings)
         return finder.srs
 
     @classmethod

osclib/select_command.py

@@ -128,7 +128,7 @@ def perform(self, requests, move=False,
         # ie. the review state of staging-project must be new if newcand is True
         newcand = not move
 
-        requests = RequestFinder.find_sr(requests, self.api, newcand)
+        requests = RequestFinder.find_sr(requests, self.api, newcand, consider_stagings=move)
         requests_count = len(requests)
         for index, request in enumerate(requests, start=1):
             print('({}/{}) '.format(index, requests_count), end='')