Re: the revision number and a tag

2011-08-15 Thread Johan Corveleyn
On Thu, Aug 11, 2011 at 6:16 PM, Andy Levy andy.l...@gmail.com wrote:
 On Thu, Aug 11, 2011 at 12:13, Andy Levy andy.l...@gmail.com wrote:
 On Thu, Aug 11, 2011 at 12:02, Giulio Troccoli
 giulio.trocc...@mediatelgroup.co.uk wrote:


 On 11/08/11 16:59, Michael Hüttermann wrote:

 Hello,

 given a Subversion tag, what's the best way to get the revision number of
 that tag, i.e. the revision number with which the tag was created? Is it
 possible at all having checked out the tag to a local working copy? Or is
 there any other way to cross-reference a tag to a revision number?


 Thanks.


 Michael


 I think svn log --limit 1 would work. It will give you the last log when the
 tag was modified. Since a tag should never be modified that log should refer
 to the copy

 That or svn log --stop-on-copy.

 If you use svn log -v --stop-on-copy, the list of changed paths (the
 copy destination) will be given, in addition to the source path and
 its revision. Parse that out and you're set. You'll have both the
 revision which created the tag and the latest revision of the path the
 tag came from.


 I hit Send too early.

 If no one has modified the tag, --limit 1 would yield the same results
 as --stop-on-copy. But if someone *has* modified the tag (which we
 agree shouldn't happen, but depending on your setup, it could - that's
 a whole other matter), that modification will appear instead of the
 copy which created the tag. If you use --stop-on-copy, you can detect
 this condition and the oldest log will end up being the creation of
 the tag.

I think the best/easiest way is:

svn log -r 1:HEAD --limit 1 --stop-on-copy $URL_TO_TAG

(then parse the revision number out of that)

The '-r 1:HEAD' reverses the order of log to return the entries from
oldest to newest. Combining this with --stop-on-copy and --limit 1
gives you exactly the oldest log entry on that tag (which is the copy
operation itself), whether or not it had changes after creation.

This also works for branches (giving you the creation revision of the branch).

-- 
Johan


the revision number and a tag

2011-08-11 Thread Michael Hüttermann


Hello,

given a Subversion tag, what's the best way to get the revision number 
of that tag, i.e. the revision number with which the tag was created? Is 
it possible at all having checked out the tag to a local working copy? 
Or is there any other way to cross-reference a tag to a revision 
number?



Thanks.


Michael



Re: the revision number and a tag

2011-08-11 Thread Giulio Troccoli



On 11/08/11 16:59, Michael Hüttermann wrote:


Hello,

given a Subversion tag, what's the best way to get the revision number 
of that tag, i.e. the revision number with which the tag was created? 
Is it possible at all having checked out the tag to a local working 
copy? Or is there any other way to cross-reference a tag to a 
revision number?



Thanks.


Michael



I think svn log --limit 1 would work. It will give you the last log when 
the tag was modified. Since a tag should never be modified that log 
should refer to the copy


G


Re: the revision number and a tag

2011-08-11 Thread Giulio Troccoli



On 11/08/11 17:02, Giulio Troccoli wrote:



On 11/08/11 16:59, Michael Hüttermann wrote:


Hello,

given a Subversion tag, what's the best way to get the revision 
number of that tag, i.e. the revision number with which the tag was 
created? Is it possible at all having checked out the tag to a local 
working copy? Or is there any other way to cross-reference a tag to 
a revision number?



Thanks.


Michael



I think svn log --limit 1 would work. It will give you the last log 
when the tag was modified. Since a tag should never be modified that 
log should refer to the copy


G


Obviously there will need to be some parsing of the output if you want 
just the revision number (to be used in a script for example)


Re: the revision number and a tag

2011-08-11 Thread Andy Levy
On Thu, Aug 11, 2011 at 12:02, Giulio Troccoli
giulio.trocc...@mediatelgroup.co.uk wrote:


 On 11/08/11 16:59, Michael Hüttermann wrote:

 Hello,

 given a Subversion tag, what's the best way to get the revision number of
 that tag, i.e. the revision number with which the tag was created? Is it
 possible at all having checked out the tag to a local working copy? Or is
 there any other way to cross-reference a tag to a revision number?


 Thanks.


 Michael


 I think svn log --limit 1 would work. It will give you the last log when the
 tag was modified. Since a tag should never be modified that log should refer
 to the copy

That or svn log --stop-on-copy.

If you use svn log -v --stop-on-copy, the list of changed paths (the
copy destination) will be given, in addition to the source path and
its revision. Parse that out and you're set. You'll have both the
revision which created the tag and the latest revision of the path the
tag came from.


Re: the revision number and a tag

2011-08-11 Thread Andy Levy
On Thu, Aug 11, 2011 at 12:13, Andy Levy andy.l...@gmail.com wrote:
 On Thu, Aug 11, 2011 at 12:02, Giulio Troccoli
 giulio.trocc...@mediatelgroup.co.uk wrote:


 On 11/08/11 16:59, Michael Hüttermann wrote:

 Hello,

 given a Subversion tag, what's the best way to get the revision number of
 that tag, i.e. the revision number with which the tag was created? Is it
 possible at all having checked out the tag to a local working copy? Or is
 there any other way to cross-reference a tag to a revision number?


 Thanks.


 Michael


 I think svn log --limit 1 would work. It will give you the last log when the
 tag was modified. Since a tag should never be modified that log should refer
 to the copy

 That or svn log --stop-on-copy.

 If you use svn log -v --stop-on-copy, the list of changed paths (the
 copy destination) will be given, in addition to the source path and
 its revision. Parse that out and you're set. You'll have both the
 revision which created the tag and the latest revision of the path the
 tag came from.


I hit Send too early.

If no one has modified the tag, --limit 1 would yield the same results
as --stop-on-copy. But if someone *has* modified the tag (which we
agree shouldn't happen, but depending on your setup, it could - that's
a whole other matter), that modification will appear instead of the
copy which created the tag. If you use --stop-on-copy, you can detect
this condition and the oldest log will end up being the creation of
the tag.


Re: the revision number and a tag

2011-08-11 Thread Mark Phippard
On Thu, Aug 11, 2011 at 11:59 AM, Michael Hüttermann 
mich...@huettermann.net wrote:


 given a Subversion tag, what's the best way to get the revision number of
 that tag, i.e. the revision number with which the tag was created? Is it
 possible at all having checked out the tag to a local working copy? Or is
 there any other way to cross-reference a tag to a revision number?


Simple way is just to use svn info and look for the Last Changed Revision:

$ svn info http://svn.apache.org/repos/asf/subversion/tags/1.6.17
Path: 1.6.17
URL: http://svn.apache.org/repos/asf/subversion/tags/1.6.17
Repository Root: http://svn.apache.org/repos/asf
Repository UUID: 13f79535-47bb-0310-9956-ffa450edef68
Revision: 1156659
Node Kind: directory
Last Changed Author: hwright
Last Changed Rev: 1130806
Last Changed Date: 2011-06-02 16:49:07 -0400 (Thu, 02 Jun 2011)


-- 
Thanks

Mark Phippard
http://markphip.blogspot.com/