Author: gbg
Date: Tue May 21 22:51:12 2013
New Revision: 1485004

URL: http://svn.apache.org/r1485004
Log:
On the invoke-diff-cmd branch: Fix error messages.  Add comments to
document non-canonical path usage.

* subversion/libsvn_client/diff.c 

  (diff_content_changed): Add comment explaining the presence of
    non-canonical path in function call.

* subversion/svn/io.c

  (svn_io_run_external_diff): Fix layering violation in first error
    message.  Remove CR from second error message.

Modified:
    subversion/branches/invoke-diff-cmd-feature/subversion/libsvn_client/diff.c
    subversion/branches/invoke-diff-cmd-feature/subversion/libsvn_subr/io.c

Modified: 
subversion/branches/invoke-diff-cmd-feature/subversion/libsvn_client/diff.c
URL: 
http://svn.apache.org/viewvc/subversion/branches/invoke-diff-cmd-feature/subversion/libsvn_client/diff.c?rev=1485004&r1=1485003&r2=1485004&view=diff
==============================================================================
--- subversion/branches/invoke-diff-cmd-feature/subversion/libsvn_client/diff.c 
(original)
+++ subversion/branches/invoke-diff-cmd-feature/subversion/libsvn_client/diff.c 
Tue May 21 22:51:12 2013
@@ -821,6 +821,7 @@ diff_content_changed(svn_boolean_t *wrot
                                        scratch_pool, scratch_pool));
       
       if (diff_cmd_baton->diff_cmd) 
+        /* "." is a non-canonical path for the diff process's working 
directory. */
         SVN_ERR(svn_io_run_diff2(".",
                                  diff_cmd_baton->options.for_external.argv,
                                  diff_cmd_baton->options.for_external.argc,
@@ -829,14 +830,13 @@ diff_content_changed(svn_boolean_t *wrot
                                  &exitcode, outfile, errfile,
                                  diff_cmd_baton->diff_cmd, scratch_pool));
       else
-        { 
-          SVN_ERR(
-          svn_io_run_external_diff(".",
-                                   label1, label2,
-                                   tmpfile1, tmpfile2,
-                                   &exitcode, outfile, errfile,
-                                   diff_cmd_baton->invoke_diff_cmd,
-                                   scratch_pool));
+        { /* "." is a non-canonical path for the diff process's working 
directory. */
+          SVN_ERR(svn_io_run_external_diff(".", 
+                                           label1, label2,
+                                           tmpfile1, tmpfile2,
+                                           &exitcode, outfile, errfile,
+                                           diff_cmd_baton->invoke_diff_cmd,
+                                           scratch_pool));
         }  
       SVN_ERR(svn_io_file_close(outfile, scratch_pool));
       SVN_ERR(svn_io_file_close(errfile, scratch_pool));

Modified: 
subversion/branches/invoke-diff-cmd-feature/subversion/libsvn_subr/io.c
URL: 
http://svn.apache.org/viewvc/subversion/branches/invoke-diff-cmd-feature/subversion/libsvn_subr/io.c?rev=1485004&r1=1485003&r2=1485004&view=diff
==============================================================================
--- subversion/branches/invoke-diff-cmd-feature/subversion/libsvn_subr/io.c 
(original)
+++ subversion/branches/invoke-diff-cmd-feature/subversion/libsvn_subr/io.c Tue 
May 21 22:51:12 2013
@@ -3017,8 +3017,7 @@ svn_io_run_external_diff(const char *dir
   const char ** cmd;
 
   if (0 == strlen(external_diff_cmd)) 
-     return svn_error_createf(SVN_ERR_CL_INSUFFICIENT_ARGS, NULL,
-                        _("The --invoke-diff-cmd string was empty.\n"));
+     return svn_error_createf(SVN_ERR_INCORRECT_PARAMS, NULL, NULL);
 
   cmd = svn_io_create_custom_diff_cmd(label1, label2, NULL, 
                                       tmpfile1, tmpfile2, NULL, 
@@ -3046,7 +3045,7 @@ svn_io_run_external_diff(const char *dir
         }
        
        return svn_error_createf(SVN_ERR_EXTERNAL_PROGRAM, NULL,
-                                _("'%s' was expanded to '%s' and returned 
%d\n"),
+                                _("'%s' was expanded to '%s' and returned %d"),
                                 external_diff_cmd,
                                 svn_dirent_local_style(failed_command, pool),
                                 *pexitcode);


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