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Viewing changes to patches/ndiff.patch

  • Committer: Martin Pool
  • Date: 2005-05-10 03:55:34 UTC
  • Revision ID: mbp@sourcefrog.net-20050510035534-643062e821052ac5
- Add fortune-cookie external plugin demonstration

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patches/ndiff.patch
1
 
*** modified file 'bzrlib/commands.py'
2
 
--- bzrlib/commands.py 
3
 
+++ bzrlib/commands.py 
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@@ -721,10 +721,11 @@
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     """
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     takes_args = ['file*']
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-    takes_options = ['revision', 'diff-options']
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+    takes_options = ['revision', 'diff-options', 'ndiff']
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     aliases = ['di', 'dif']
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12
 
-    def run(self, revision=None, file_list=None, diff_options=None):
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+    def run(self, revision=None, file_list=None, diff_options=None,
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+            ndiff=None):
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         from bzrlib.diff import show_diff
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17
 
         if file_list:
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@@ -735,9 +736,15 @@
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                 file_list = None
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         else:
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             b = find_branch('.')
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-    
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+
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+        if ndiff:
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+            format = 'ndiff'
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+        else:
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+            format = None
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+
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         show_diff(b, revision, specific_files=file_list,
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-                  external_diff_options=diff_options)
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+                  external_diff_options=diff_options,
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+                  format=format)
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35
 
         
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@@ -1344,6 +1351,7 @@
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     'format':                 unicode,
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     'forward':                None,
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     'message':                unicode,
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+    'ndiff':                  None,
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     'no-recurse':             None,
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     'profile':                None,
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     'revision':               _parse_revision_str,
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*** modified file 'bzrlib/diff.py'
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--- bzrlib/diff.py 
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+++ bzrlib/diff.py 
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@@ -70,6 +70,13 @@
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     print >>to_file
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51
 
 
52
 
+
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+def internal_ndiff(old_label, oldlines,
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+                   new_label, newlines,
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+                   to_file):
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+    """Show diff in python-specific ndiff format."""
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+    from difflib import ndiff
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+    to_file.writelines(ndiff(oldlines, newlines))
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60
 
 
61
 
 def external_diff(old_label, oldlines, new_label, newlines, to_file,
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@@ -152,7 +159,8 @@
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64
 
 
65
 
 
66
 
-def show_diff(b, revision, specific_files, external_diff_options=None):
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+def show_diff(b, revision, specific_files, external_diff_options=None,
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+              format=None):
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     """Shortcut for showing the diff to the working tree.
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71
 
     b
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@@ -160,6 +168,9 @@
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74
 
     revision
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         None for each, or otherwise the old revision to compare against.
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+
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+    format
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+        'unified', 'context', 'ndiff', 'external'
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     The more general form is show_diff_trees(), where the caller
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     supplies any two trees.
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@@ -174,12 +185,13 @@
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     new_tree = b.working_tree()
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     show_diff_trees(old_tree, new_tree, sys.stdout, specific_files,
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-                    external_diff_options)
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+                    external_diff_options, format)
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89
 
 
90
 
 
91
 
 def show_diff_trees(old_tree, new_tree, to_file, specific_files=None,
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-                    external_diff_options=None):
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+                    external_diff_options=None,
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+                    format=None):
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     """Show in text form the changes from one tree to another.
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97
 
     to_files
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@@ -204,10 +216,12 @@
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     if external_diff_options:
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         assert isinstance(external_diff_options, basestring)
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         opts = external_diff_options.split()
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-        def diff_file(olab, olines, nlab, nlines, to_file):
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+        def diff_fn(olab, olines, nlab, nlines, to_file):
104
 
             external_diff(olab, olines, nlab, nlines, to_file, opts)
105
 
+    elif format == 'ndiff':
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+        diff_fn = internal_ndiff
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     else:
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-        diff_file = internal_diff
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+        diff_fn = internal_diff
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111
 
 
112
 
     delta = compare_trees(old_tree, new_tree, want_unchanged=False,
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@@ -216,7 +230,7 @@
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     for path, file_id, kind in delta.removed:
115
 
         print >>to_file, '*** removed %s %r' % (kind, path)
116
 
         if kind == 'file':
117
 
-            diff_file(old_label + path,
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+            diff_fn(old_label + path,
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                       old_tree.get_file(file_id).readlines(),
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                       DEVNULL, 
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                       [],
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@@ -225,7 +239,7 @@
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     for path, file_id, kind in delta.added:
124
 
         print >>to_file, '*** added %s %r' % (kind, path)
125
 
         if kind == 'file':
126
 
-            diff_file(DEVNULL,
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+            diff_fn(DEVNULL,
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                       [],
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                       new_label + path,
130
 
                       new_tree.get_file(file_id).readlines(),
131
 
@@ -234,7 +248,7 @@
132
 
     for old_path, new_path, file_id, kind, text_modified in delta.renamed:
133
 
         print >>to_file, '*** renamed %s %r => %r' % (kind, old_path, new_path)
134
 
         if text_modified:
135
 
-            diff_file(old_label + old_path,
136
 
+            diff_fn(old_label + old_path,
137
 
                       old_tree.get_file(file_id).readlines(),
138
 
                       new_label + new_path,
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                       new_tree.get_file(file_id).readlines(),
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@@ -243,7 +257,7 @@
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     for path, file_id, kind in delta.modified:
142
 
         print >>to_file, '*** modified %s %r' % (kind, path)
143
 
         if kind == 'file':
144
 
-            diff_file(old_label + path,
145
 
+            diff_fn(old_label + path,
146
 
                       old_tree.get_file(file_id).readlines(),
147
 
                       new_label + path,
148
 
                       new_tree.get_file(file_id).readlines(),
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