[SVN-4527] svn export does not announce fetching of externals

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.8.x
• Fix Version/s: ---
• Component/s: libsvn_client
• Assignee: Unassigned
• Reporter: Subversion Importer
• Created: 12/Nov/14 15:02
• Updated: 23/Jan/15 13:37

Description

The below problem was (without the nested externals) posted and approved as bug on the users-mailinglist:
http://mail-archives.apache.org/mod_mbox/subversion-dev/201411.mbox/%3C545B42995E120549B32D104E70ED2802E0591A1A%40srv-dag-01.fme.lan%3E

When I export something which contains externals, subversion only prints “Exported revision X” after fetching an external, in contrast to a checkout, where you get an 
announcement before fetching an external starts and where the message after fetching an external also explicitly states that an external was fetched. Additionally, 
checkout does not handle *nested* externals correctly: As soon as one external is finished, the is_internal flag is reset to false and thus an external which has 
nested externals will use the normal (non-external) log message upon completion.

Imagine a trivial repository with just an empty folder hierarchy "Parent/Child/Grandchild" and two externals:
In /:       ^/Parent       ExternalDir
In /Parent: ^/Parent/Child ExternalChild

Then, I get the following logs for checkout and export:
================================
CHECKOUT
================================
A    TestRepo_CO2\Parent
A    TestRepo_CO2\Parent\Child
A    TestRepo_CO2\Parent\Child\Grandchild
 U   TestRepo_CO2

Fetching external item into 'TestRepo_CO2\ExternalDir':
A    TestRepo_CO2\ExternalDir\Child
A    TestRepo_CO2\ExternalDir\Child\Grandchild
 U   TestRepo_CO2\ExternalDir

Fetching external item into 'TestRepo_CO2\ExternalDir\ExternalChild':
A    TestRepo_CO2\ExternalDir\ExternalChild\Grandchild
Checked out external at revision 2.

Checked out revision 2.

Fetching external item into 'TestRepo_CO2\Parent\ExternalChild':
A    TestRepo_CO2\Parent\ExternalChild\Grandchild
Checked out external at revision 2.

Checked out revision 2.
================================


================================
EXPORT
================================
A    TestRepo_Export
A    TestRepo_Export\Parent
A    TestRepo_Export\Parent\Child
A    TestRepo_Export\Parent\Child\Grandchild
A    TestRepo_Export\Parent\ExternalChild
A    TestRepo_Export\Parent\ExternalChild\Grandchild
Exported revision 2.
A    TestRepo_Export\ExternalDir
A    TestRepo_Export\ExternalDir\Child
A    TestRepo_Export\ExternalDir\Child\Grandchild
A    TestRepo_Export\ExternalDir\ExternalChild
A    TestRepo_Export\ExternalDir\ExternalChild\Grandchild
Exported revision 2.
Exported revision 2.
Exported revision 2.
================================

Original issue reported by mschmidt