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[PATCH] Ambiguous property diff output (issue #3019)

From: C. Michael Pilato <cmpilato_at_collab.net>
Date: 2007-11-14 06:46:08 CET

Ben Collins-Sussman wrote:
> I say you should do your proposal below. Nothing is parsing the
> property-diffs; it's a lame format I wrote in a pinch years ago. It
> needs to be replaced sorely.
>
> On Nov 13, 2007 11:04 PM, C. Michael Pilato <cmpilato@collab.net> wrote:
>> Devs, I just added the following to issue #3019[1] which describes ambiguous
>> output from 'svn diff' with respect to property changes. Would this be a
>> legal change to our output format, especially considering this portion of
>> the diff is ignored by 'patch'?
>>
>> [1] http://subversion.tigris.org/issues/show_bug.cgi?id=3019#desc2

Patch attached.

-- 
C. Michael Pilato <cmpilato@collab.net>
CollabNet   <>   www.collab.net   <>   Distributed Development On Demand

Finish issue #3019 by disambiguating property change actions in 'svn
diff' and 'svnlook diff' output.

* subversion/libsvn_client/diff.c
  (display_prop_diffs): Use action verbs instead of the static string
     "Name:" as a prefix for property names in diff output.

* subversion/svnlook/main.c
  (display_prop_diffs): Make the same changes to the diff header here
    for 'svnlook diff' as for 'svn diff'.

* subversion/tests/cmdline/diff_tests.py
  (diff_only_property_change, diff_property_changes_to_base,
   diff_prop_change_local_propmod, diff_repos_wc_add_with_props,
   diff_with_depth): Tweak expected test output.

* subversion/tests/cmdline/depth_tests.py
  (diff_in_depthy_wc): Tweak expected test output.

* subversion/tests/cmdline/merge_tests.py
  (merge_in_new_file_and_diff): Tweak expected test output.

* subversion/tests/cmdline/special_tests.py
  (diff_symlink_to_dir): Tweak expected test output.

Index: subversion/svnlook/main.c
===================================================================
--- subversion/svnlook/main.c (revision 27806)
+++ subversion/svnlook/main.c (working copy)
@@ -765,6 +765,7 @@
 
   for (i = 0; i < prop_diffs->nelts; i++)
     {
+ const char *header_fmt;
       const svn_string_t *orig_value;
       const svn_prop_t *pc = &APR_ARRAY_IDX(prop_diffs, i, svn_prop_t);
 
@@ -775,7 +776,13 @@
       else
         orig_value = NULL;
 
- SVN_ERR(svn_cmdline_printf(pool, _("Name: %s\n"), pc->name));
+ if (! orig_value)
+ header_fmt = _("Added: %s\n");
+ else if (! pc->value)
+ header_fmt = _("Deleted: %s\n");
+ else
+ header_fmt = _("Modified: %s\n");
+ SVN_ERR(svn_cmdline_printf(pool, header_fmt, pc->name));
 
       /* For now, we have a rather simple heuristic: if this is an
          "svn:" property, then assume the value is UTF-8 and must
Index: subversion/libsvn_client/diff.c
===================================================================
--- subversion/libsvn_client/diff.c (revision 27806)
+++ subversion/libsvn_client/diff.c (working copy)
@@ -183,10 +183,10 @@
 
   for (i = 0; i < propchanges->nelts; i++)
     {
- const svn_prop_t *propchange
- = &APR_ARRAY_IDX(propchanges, i, svn_prop_t);
-
+ const char *header_fmt;
       const svn_string_t *original_value;
+ const svn_prop_t *propchange =
+ &APR_ARRAY_IDX(propchanges, i, svn_prop_t);
 
       if (original_props)
         original_value = apr_hash_get(original_props,
@@ -201,7 +201,13 @@
               && svn_string_compare(original_value, propchange->value)))
         continue;
 
- SVN_ERR(file_printf_from_utf8(file, encoding, _("Name: %s%s"),
+ if (! original_value)
+ header_fmt = _("Added: %s%s");
+ else if (! propchange->value)
+ header_fmt = _("Deleted: %s%s");
+ else
+ header_fmt = _("Modified: %s%s");
+ SVN_ERR(file_printf_from_utf8(file, encoding, header_fmt,
                                     propchange->name, APR_EOL_STR));
 
       if (strcmp(propchange->name, SVN_PROP_MERGE_INFO) == 0)
Index: subversion/tests/cmdline/diff_tests.py
===================================================================
--- subversion/tests/cmdline/diff_tests.py (revision 27806)
+++ subversion/tests/cmdline/diff_tests.py (working copy)
@@ -617,11 +617,13 @@
     "\n",
     "Property changes on: iota\n",
     "___________________________________________________________________\n",
- "Name: svn:eol-style\n",
+ "Added: svn:eol-style\n",
     " + native\n",
     "\n" ]
 
   expected_reverse_output = list(expected_output)
+ expected_reverse_output[3] = expected_reverse_output[3].replace("Added",
+ "Deleted")
   expected_reverse_output[4] = " - native\n"
 
 
@@ -1837,18 +1839,22 @@
     "\n",
     "Property changes on: A\n",
     "___________________________________________________________________\n",
- "Name: dirprop\n",
+ "Added: dirprop\n",
     " + r2value\n",
     "\n",
     "\n",
     "Property changes on: iota\n",
     "___________________________________________________________________\n",
- "Name: fileprop\n",
+ "Added: fileprop\n",
     " + r2value\n",
     "\n" ]
 
   expected_output_r2_r1 = list(expected_output_r1_r2)
+ expected_output_r2_r1[3] = expected_output_r2_r1[3].replace("Added",
+ "Deleted")
   expected_output_r2_r1[4] = " - r2value\n"
+ expected_output_r2_r1[9] = expected_output_r2_r1[9].replace("Added",
+ "Deleted")
   expected_output_r2_r1[10] = " - r2value\n"
 
 
@@ -2084,19 +2090,19 @@
     "\n",
     "Property changes on: A\n",
     "___________________________________________________________________\n",
- "Name: dirprop\n",
+ "Modified: dirprop\n",
     " - r2value\n",
     " + workingvalue\n",
- "Name: newdirprop\n",
+ "Added: newdirprop\n",
     " + newworkingvalue\n",
     "\n",
     "\n",
     "Property changes on: iota\n",
     "___________________________________________________________________\n",
- "Name: fileprop\n",
+ "Modified: fileprop\n",
     " - r2value\n",
     " + workingvalue\n",
- "Name: newfileprop\n",
+ "Added: newfileprop\n",
     " + newworkingvalue\n",
     "\n" ]
 
@@ -2168,13 +2174,13 @@
     "\n",
     "Property changes on: foo\n",
     "___________________________________________________________________\n",
- "Name: propname\n",
+ "Added: propname\n",
     " + propvalue\n",
     "\n",
     "\n",
     "Property changes on: X\n",
     "___________________________________________________________________\n",
- "Name: propname\n",
+ "Added: propname\n",
     " + propvalue\n",
     "\n",
     "Index: X/bar\n",
@@ -2186,7 +2192,7 @@
     "\n",
     "Property changes on: " + os.path.join('X', 'bar') + "\n",
     "___________________________________________________________________\n",
- "Name: propname\n",
+ "Added: propname\n",
     " + propvalue\n",
     "\n" ]
   # The output from the BASE->repos diff is the same content, but in a
@@ -2632,25 +2638,25 @@
     "\n",
     "Property changes on: .\n",
     "___________________________________________________________________\n",
- "Name: foo1\n",
+ "Added: foo1\n",
     " + bar1\n",
     "\n",
     "\n",
     "Property changes on: iota\n",
     "___________________________________________________________________\n",
- "Name: foo2\n",
+ "Added: foo2\n",
     " + bar2\n",
     "\n",
     "\n",
     "Property changes on: A\n",
     "___________________________________________________________________\n",
- "Name: foo3\n",
+ "Added: foo3\n",
     " + bar3\n",
     "\n",
     "\n",
     "Property changes on: " + os.path.join('A', 'B') + "\n",
     "___________________________________________________________________\n",
- "Name: foo4\n",
+ "Added: foo4\n",
     " + bar4\n",
     "\n" ]
 
@@ -2702,14 +2708,14 @@
     "\n",
     "Property changes on: .\n",
     "___________________________________________________________________\n",
- "Name: foo1\n",
+ "Modified: foo1\n",
     " - bar1\n",
     " + baz1\n",
     "\n",
     "\n",
     "Property changes on: iota\n",
     "___________________________________________________________________\n",
- "Name: foo2\n",
+ "Modified: foo2\n",
     " - bar2\n",
     " + baz2\n",
     "\n",
@@ -2723,14 +2729,14 @@
     "+new text\n",
     "Property changes on: A\n",
     "___________________________________________________________________\n",
- "Name: foo3\n",
+ "Modified: foo3\n",
     " - bar3\n",
     " + baz3\n",
     "\n",
     "\n",
     "Property changes on: " + os.path.join('A', 'B') + "\n",
     "___________________________________________________________________\n",
- "Name: foo4\n",
+ "Modified: foo4\n",
     " - bar4\n",
     " + baz4\n",
     "\n",
Index: subversion/tests/cmdline/special_tests.py
===================================================================
--- subversion/tests/cmdline/special_tests.py (revision 27806)
+++ subversion/tests/cmdline/special_tests.py (working copy)
@@ -524,7 +524,7 @@
     "\n",
     "Property changes on: svn-test-work/working_copies/special_tests-10/link\n",
     "___________________________________________________________________\n",
- "Name: svn:special\n",
+ "Added: svn:special\n",
     " + *\n",
     "\n" ]
   svntest.actions.run_and_verify_svn(None, expected_output, [], 'diff',
Index: subversion/tests/cmdline/merge_tests.py
===================================================================
--- subversion/tests/cmdline/merge_tests.py (revision 27806)
+++ subversion/tests/cmdline/merge_tests.py (working copy)
@@ -1700,7 +1700,7 @@
     "\n",
     "Property changes on: " + branch_path + "\n",
     "___________________________________________________________________\n",
- "Name: " + SVN_PROP_MERGE_INFO + "\n",
+ "Modified: " + SVN_PROP_MERGE_INFO + "\n",
     " Merged /A/B/E:r2-3\n",
     "\n", ]
   svntest.actions.run_and_verify_svn(None, expected_output, [], 'diff',
Index: subversion/tests/cmdline/depth_tests.py
===================================================================
--- subversion/tests/cmdline/depth_tests.py (revision 27806)
+++ subversion/tests/cmdline/depth_tests.py (working copy)
@@ -1024,7 +1024,7 @@
     "\n",
     "Property changes on: .\n",
     "___________________________________________________________________\n",
- "Name: foo\n",
+ "Deleted: foo\n",
     " - foo-val\n",
     "\n",
     "Index: iota\n",
@@ -1036,7 +1036,7 @@
     "+This is the file 'iota'.\n",
     "Property changes on: A\n",
     "___________________________________________________________________\n",
- "Name: bar\n",
+ "Deleted: bar\n",
     " - bar-val\n",
     "\n",
     "\n",

Received on Wed Nov 14 06:46:20 2007

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