Fix Synchronize Not Sourcing Multiple Paths

plugins/action/synchronize.py

@@ -331,6 +331,8 @@ def run(self, tmp=None, task_vars=None):
         dest = _tmp_args.get('dest', None)
         if src is None or dest is None:
             return dict(failed=True, msg="synchronize requires both src and dest parameters are set")
+        if isinstance(src, str):
+            src = [src]
 
         # Determine if we need a user@ and a password
         user = None
@@ -357,11 +359,11 @@ def run(self, tmp=None, task_vars=None):
             # use the mode to define src and dest's url
             if _tmp_args.get('mode', 'push') == 'pull':
                 # src is a remote path: <user>@<host>, dest is a local path
-                src = self._process_remote(_tmp_args, src_host, src, user, inv_port in localhost_ports)
+                src = [self._process_remote(_tmp_args, src_host, e, user, inv_port in localhost_ports) for e in src]
                 dest = self._process_origin(dest_host, dest, user)
             else:
                 # src is a local path, dest is a remote path: <user>@<host>
-                src = self._process_origin(src_host, src, user)
+                src = [self._process_origin(src_host, e, user) for e in src]
                 dest = self._process_remote(_tmp_args, dest_host, dest, user, inv_port in localhost_ports)
 
             password = dest_host_inventory_vars.get('ansible_ssh_pass', None) or dest_host_inventory_vars.get('ansible_password', None)
@@ -370,7 +372,7 @@ def run(self, tmp=None, task_vars=None):
         else:
             # Still need to munge paths (to account for roles) even if we aren't
             # copying files between hosts
-            src = self._get_absolute_path(path=src)
+            src = [self._get_absolute_path(path=e) for e in src]
             dest = self._get_absolute_path(path=dest)
 
         _tmp_args['_local_rsync_password'] = password

plugins/modules/synchronize.py

@@ -360,6 +360,17 @@
         src: /tmp/localpath/
         dest: /tmp/remotepath
         rsync_path: /usr/gnu/bin/rsync
+
+# Source files from multiple folders and merge them on the remote
+# Files of the same name in /tmp/path_c/ will take precedence over those in /tmp/path_b/, and same for path_b to path_a
+- name: Copy files from multiple folders and merge them into dest
+  ansible.posix.synchronize:
+    src: 
+    - /tmp/path_a/
+    - /tmp/path_b/
+    - /tmp/path_c/
+    dest: /tmp/dest/
+    recursive: True
 '''
 
 
@@ -395,17 +406,17 @@ def substitute_controller(path):
 
 
 def is_rsh_needed(source, dest):
-    if source.startswith('rsync://') or dest.startswith('rsync://'):
+    if all(e.startswith('rsync://') for e in source) or dest.startswith('rsync://'):
         return False
-    if ':' in source or ':' in dest:
+    if any(':' in e for e in source) or ':' in dest:
         return True
     return False
 
 
 def main():
     module = AnsibleModule(
         argument_spec=dict(
-            src=dict(type='path', required=True),
+            src=dict(type='list', required=True),
             dest=dict(type='path', required=True),
             dest_port=dict(type='int'),
             delete=dict(type='bool', default=False),
@@ -539,11 +550,10 @@ def main():
     if dirs:
         cmd.append('--dirs')
 
-    if source.startswith('rsync://') and dest.startswith('rsync://'):
+    if all(e.startswith('rsync://') for e in source) and dest.startswith('rsync://'):
         module.fail_json(msg='either src or dest must be a localhost', rc=1)
 
     if is_rsh_needed(source, dest):
-
         # https://github.com/ansible/ansible/issues/15907
         has_rsh = False
         for rsync_opt in rsync_opts:
@@ -599,7 +609,7 @@ def main():
     changed_marker = '<<CHANGED>>'
     cmd.append('--out-format=%s' % shlex_quote(changed_marker + '%i %n%L'))
 
-    cmd.append(shlex_quote(source))
+    [cmd.append(shlex_quote(e)) for e in source]
     cmd.append(shlex_quote(dest))
     cmdstr = ' '.join(cmd)