adding header switch for tree

catcli/catcli.py

@@ -38,7 +38,7 @@ USAGE = """
 Usage:
     {1} ls     [--catalog=<path>] [--format=<fmt>] [-aBCrVS] [<path>]
     {1} find   [--catalog=<path>] [--format=<fmt>] [-aBCbdVP] [--path=<path>] <term>
-    {1} tree   [--catalog=<path>] [--format=<fmt>] [-aBCVS] [<path>]
+    {1} tree   [--catalog=<path>] [--format=<fmt>] [-aBCVSH] [<path>]
     {1} index  [--catalog=<path>] [--meta=<meta>...] [-aBCcfnV] <name> <path>
     {1} update [--catalog=<path>] [-aBCcfnV] [--lpath=<path>] <name> <path>
     {1} rm     [--catalog=<path>] [-BCfV] <storage>
@@ -61,6 +61,7 @@ Options:
     -d --directory      Only directory [default: False].
     -F --format=<fmt>   Print format, see command \"print_supported_formats\" [default: native].
     -f --force          Do not ask when updating the catalog [default: False].
+    -H --header         Print header on CSV format [default: False].
     -l --lpath=<path>   Path where changes are logged [default: ]
     -n --no-subsize     Do not store size of directories [default: False].
     -P --parent         Ignore stored relpath [default: True].
@@ -178,6 +179,7 @@ def cmd_find(args, noder, top):
 def cmd_tree(args, noder, top):
     path = args['<path>']
     fmt = args['--format']
+    hdr = args['--header']
 
     # find node to start with
     node = top
@@ -186,7 +188,7 @@ def cmd_tree(args, noder, top):
 
     if node:
         # print the tree
-        noder.print_tree(node, fmt=fmt)
+        noder.print_tree(node, fmt=fmt, header=hdr)
 
 
 def cmd_graph(args, noder, top):

catcli/noder.py

@@ -417,18 +417,27 @@ class Noder:
         else:
             Logger.err('bad node encountered: {}'.format(node))
 
-    def print_tree(self, node, style=anytree.ContRoundStyle(), fmt='native'):
-        '''print the tree similar to unix tool "tree"'''
+    def print_tree(self, node, style=anytree.ContRoundStyle(),
+                   fmt='native', header=False):
+        '''
+        print the tree similar to unix tool "tree"
+        @node: start node
+        @style: when fmt=native, defines the tree style
+        @fmt: output format
+        @header: when fmt=csv, print the header
+        '''
         if fmt == 'native':
             rend = anytree.RenderTree(node, childiter=self._sort_tree)
             for pre, fill, node in rend:
                 self._print_node(node, pre=pre, withdepth=True)
         elif fmt == 'csv':
-            self._to_csv(node)
+            self._to_csv(node, with_header=header)
 
-    def _to_csv(self, node, with_header=True):
+    def _to_csv(self, node, with_header=False):
         '''print the tree to csv'''
         rend = anytree.RenderTree(node, childiter=self._sort_tree)
+        if with_header:
+            Logger.out(self.CSV_HEADER)
         for _, _, node in rend:
             self._node_to_csv(node)
 
@@ -499,8 +508,14 @@ class Noder:
     # climbing
     ###############################################################
     def walk(self, root, path, rec=False, fmt='native'):
-        '''walk the tree for ls based on names'''
+        '''
+        walk the tree for ls based on names
+        @root: start node
+        @rec: recursive walk
+        @fmt: output format
+        '''
         self._debug('walking path: \"{}\"'.format(path))
+
         r = anytree.resolver.Resolver('name')
         found = []
         try:

tests/test_tree.py

@@ -28,6 +28,7 @@ class TestTree(unittest.TestCase):
             '<path>': path,
             '--verbose': True,
             '--format': 'native',
+            '--header': False,
         }
 
         # print tree and wait for any errors