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Re: [PATCH] Fix for issue 3799 - exporting file should not overwrite

From: Noorul Islam K M <noorul_at_collab.net>
Date: Tue, 24 May 2011 15:45:40 +0530

Stefan Sperling <stsp_at_elego.de> writes:

> On Fri, May 20, 2011 at 01:04:18PM +0200, Stefan Sperling wrote:
>
>> On Fri, May 20, 2011 at 03:25:50PM +0530, Noorul Islam K M wrote:
>> > Pinging again.
>>
>> Looking into this...
>
> Noorul,
>
> unfortunately your patch does not apply cleanly to trunk anymore.
> Can you update it? Thanks!

Attached is the updated patch.

Log

[[[

Fix for issue #3799. Make svn export display error, when exporting file,
tries to overwrite target.

* subversion/libsvn_client/export.c
  (copy_versioned_files, svn_client_export5): Return
    SVN_ERR_FS_ALREADY_EXISTS if export tries to overwrite existing
    file, child directory.

* subversion/tests/cmdline/export_tests.py
  (export_file_overwrite_fails): Extend test for URL source. Remove
    XFail marker.
  (export_file_overwrite_with_force): New test
  (test_list): Add reference to new test

* subversion/tests/cmdline/externals_tests.py
  (export_wc_with_externals): Fix failing test by passing --force.

Patch by: Noorul Islam K M <noorul{_AT_}collab.net>
]]]

Thanks and Regards
Noorul

Index: subversion/tests/cmdline/externals_tests.py
===================================================================
--- subversion/tests/cmdline/externals_tests.py (revision 1126953)
+++ subversion/tests/cmdline/externals_tests.py (working copy)
@@ -752,7 +752,8 @@
                                      repo_url, wc_dir)
   # Export the working copy.
   svntest.actions.run_and_verify_svn(None, None, [],
- 'export', wc_dir, export_target)
+ 'export', '--force',
+ wc_dir, export_target)
 
   ### We should be able to check exactly the paths that externals_test_setup()
   ### set up; however, --ignore-externals fails to ignore 'A/B/gamma' so this
Index: subversion/tests/cmdline/export_tests.py
===================================================================
--- subversion/tests/cmdline/export_tests.py (revision 1126953)
+++ subversion/tests/cmdline/export_tests.py (working copy)
@@ -589,19 +589,19 @@
                                         '.', expected_output,
                                         expected_disk)
 
-_at_XFail()
 @Issue(3799)
 def export_file_overwrite_fails(sbox):
   "exporting a file refuses to silently overwrite"
   sbox.build(create_wc = True, read_only = True)
 
   iota_path = os.path.abspath(os.path.join(sbox.wc_dir, 'iota'))
+ iota_url = sbox.repo_url + '/iota'
   not_iota_contents = "This obstructs 'iota'.\n"
 
   tmpdir = sbox.get_tempname('file-overwrites')
   os.mkdir(tmpdir)
 
- # Run it
+ # Run it for source local
   open(os.path.join(tmpdir, 'iota'), 'w').write(not_iota_contents)
   svntest.actions.run_and_verify_svn(None, [], '.*exist.*',
                                      'export', iota_path, tmpdir)
@@ -612,6 +612,17 @@
       })
   svntest.actions.verify_disk(tmpdir, expected_disk)
 
+ # Run it for source URL
+ open(os.path.join(tmpdir, 'iota'), 'w').write(not_iota_contents)
+ svntest.actions.run_and_verify_svn(None, [], '.*exist.*',
+ 'export', iota_url, tmpdir)
+
+ # Verify it failed
+ expected_disk = svntest.wc.State('', {
+ 'iota': Item(contents=not_iota_contents),
+ })
+ svntest.actions.verify_disk(tmpdir, expected_disk)
+
 def export_ignoring_keyword_translation(sbox):
   "export ignoring keyword translation"
   sbox.build()
@@ -867,6 +878,29 @@
 
   os.chdir(orig_dir)
 
+def export_file_overwrite_with_force(sbox):
+ "exporting a file with force option"
+ sbox.build(create_wc = True, read_only = True)
+
+ iota_path = os.path.abspath(os.path.join(sbox.wc_dir, 'iota'))
+ not_iota_contents = "This obstructs 'iota'.\n"
+ iota_contents = "This is the file 'iota'.\n"
+
+ tmpdir = sbox.get_tempname('file-overwrites')
+ os.mkdir(tmpdir)
+
+ expected_disk = svntest.wc.State('', {
+ 'iota': Item(contents=iota_contents),
+ })
+
+ # Run it
+ open(os.path.join(tmpdir, 'iota'), 'w').write(not_iota_contents)
+ svntest.actions.run_and_verify_svn(None, svntest.verify.AnyOutput,
+ [], 'export', '--force',
+ iota_path, tmpdir)
+
+ svntest.actions.verify_disk(tmpdir, expected_disk)
+
 ########################################################################
 # Run the tests
 
@@ -899,6 +933,7 @@
               export_working_copy_with_depths,
               export_externals_with_native_eol,
               export_to_current_dir,
+ export_file_overwrite_with_force,
              ]
 
 if __name__ == '__main__':
Index: subversion/libsvn_client/export.c
===================================================================
--- subversion/libsvn_client/export.c (revision 1126953)
+++ subversion/libsvn_client/export.c (working copy)
@@ -569,6 +569,26 @@
     }
   else if (from_kind == svn_node_file)
     {
+ svn_node_kind_t kind;
+ svn_error_t *err;
+
+ svn_error_clear(svn_io_check_path(to_abspath, &kind, pool));
+
+ if ((kind == svn_node_file || kind == svn_node_unknown) && ! force)
+ {
+ return svn_error_createf(SVN_ERR_FS_ALREADY_EXISTS, NULL,
+ _("Destination file '%s' exists, "
+ "and will not be overwritten unless "
+ "forced"),
+ svn_dirent_local_style(to_abspath, pool));
+ }
+ else if (kind == svn_node_dir)
+ return svn_error_createf(SVN_ERR_FS_ALREADY_EXISTS, NULL,
+ _("Destination %s exists. Cannot overwrite "
+ "directory with non-directory"),
+ svn_dirent_local_style(to_abspath, pool));
+
+
       SVN_ERR(copy_one_versioned_file(from_abspath, to_abspath, ctx,
                                       revision, native_eol, ignore_keywords,
                                       pool));
@@ -1064,6 +1084,7 @@
           apr_hash_t *props;
           apr_hash_index_t *hi;
           struct file_baton *fb = apr_pcalloc(pool, sizeof(*fb));
+ svn_node_kind_t to_kind;
 
           if (svn_path_is_empty(to_path))
             {
@@ -1080,7 +1101,23 @@
               eb->root_path = to_path;
             }
 
+ svn_error_clear(svn_io_check_path(to_path, &to_kind, pool));
 
+ if ((to_kind == svn_node_file || to_kind == svn_node_unknown) &&
+ ! overwrite)
+ {
+ return svn_error_createf(SVN_ERR_FS_ALREADY_EXISTS, NULL,
+ _("Destination file '%s' exists, "
+ "and will not be overwritten unless "
+ "forced"),
+ svn_dirent_local_style(to_path, pool));
+ }
+ else if (to_kind == svn_node_dir)
+ return svn_error_createf(SVN_ERR_FS_ALREADY_EXISTS, NULL,
+ _("Destination %s exists. Cannot overwrite "
+ "directory with non-directory"),
+ svn_dirent_local_style(to_path, pool));
+
           /* Since you cannot actually root an editor at a file, we
            * manually drive a few functions of our editor. */
 
Received on 2011-05-24 12:17:47 CEST

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