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Posted to dev@subversion.apache.org by Xypanastheu <Ge...@gmail.com> on 2008/01/08 06:12:14 UTC
Subversion repository most-recent revision number
I am trying to write a small Windows console application
that uses the SVN client C++ API
to get the latest / most-recent revision number
from a Subversion repository out on the server.
My code is below. I have tried to go as far as I can with it.
I'd appreciate any feedback or help that you can give me.
I'm not sure what to do for the revision value.
What are batons (e.g. svn_client_info()'s receiver_baton), and how
are they used ?
What libs do I need to use ? :
for apr_pool_create() and apr_pool_destroy()
use svn-win32-1.4.6/lib/apr/libapr.lib
for svn_client_info()
use ???
Is there any existing example/test code that does what I am trying to
do ?
Thanks,
Chip Chianicti
/
*******************************************************************************
* PROJECT SVN Revision
* DESCRIPT Get Subversion repository latest / most-recent revision
number.
*******************************************************************************/
#include <stdio.h>
#include "apr_general.h" //btw does #include "apr_pools.h"
//#include "svn_types.h" //svn_error_t
//#include "svn_opt.h" //svn_opt_revision_t
#include "svn_client.h" //svn_info_receiver_t -(), btw does
#include svn_types.h
//#include "svn_config.h" //svn_boolean_t ?
/*=== PROTOTYPES
==========================================================*/
svn_error_t *
Callback_svn_client_info
(void *baton, const char *path, const svn_info_t *info, apr_pool_t
*pool);
void
Callback_svn_wc_notify_func
(void *baton, const char *path, svn_wc_notify_action_t action,
svn_node_kind_t kind, const char *mime_type, svn_wc_notify_state_t
content_state, svn_wc_notify_state_t prop_state, svn_revnum_t
revision);
svn_error_t *
Callback_svn_client_get_commit_log
(const char **log_msg, const char **tmp_file, apr_array_header_t
*commit_items, void *baton, apr_pool_t *pool);
svn_error_t *
Callback_svn_cancel_func_t
(void *cancel_baton);
void
Callback_svn_wc_notify_func2
(void *baton, const svn_wc_notify_t *notify, apr_pool_t *pool);
svn_error_t *
Callback_svn_client_get_commit_log2_t
(const char **log_msg, const char **tmp_file, const apr_array_header_t
*commit_items, void *baton, apr_pool_t *pool);
void
Callback_svn_ra_progress_notify_func_t
(apr_off_t progress, apr_off_t total, void *baton, apr_pool_t *pool);
/
*******************************************************************************
* FUNCTION main()
* DESCRIPT
*******************************************************************************/
int main ()
{
printf ("\nHello hello.\n");
/*=== BEGIN SVN CODE
======================================================*/
apr_pool_t * pool;
/*=== CREATE POOL
=========================================================*/
apr_pool_create(&pool, NULL);
/*=== USE POOL
============================================================*/
svn_error_t *SvnError;
svn_opt_revision_t PegRevision;
svn_opt_revision_t Revision;
//svn_info_receiver_t //Callback
svn_boolean_t Recurse;
svn_client_ctx_t ClientCtx;
PegRevision.kind = svn_opt_revision_unspecified;
//PegRevision.value = ???
Revision.kind = svn_opt_revision_unspecified;
//Revision.value = ???
Recurse = 0;
//ClientCtx.auth_baton = ???
ClientCtx.notify_func = Callback_svn_wc_notify_func;
//ClientCtx.notify_baton = ???
ClientCtx.log_msg_func = Callback_svn_client_get_commit_log;
//ClientCtx.log_msg_baton = ???
//ClientCtx.config = ???
ClientCtx.cancel_func = Callback_svn_cancel_func_t;
//ClientCtx.cancel_baton = ???
ClientCtx.notify_func2 = Callback_svn_wc_notify_func2;
//ClientCtx.notify_baton2 = ???
ClientCtx.log_msg_func2 = Callback_svn_client_get_commit_log2_t;
//ClientCtx.log_msg_baton2 = ???
ClientCtx.progress_func =
Callback_svn_ra_progress_notify_func_t;
//ClientCtx.progress_baton = ???
#if (0)
SvnError = svn_client_info
(
"http://subversion/svn/software/VRS", //path or url
&PegRevision,
&Revision,
Callback_svn_client_info, //callback
NULL, //receiver_baton,
Recurse,
&ClientCtx,
pool
);
#endif
/*=== DESTROY POOL
========================================================*/
apr_pool_destroy(pool);
/*=== END SVN CODE
========================================================*/
printf ("\nPrgm done.\n");
return (0);
}
/
*******************************************************************************
* FUNCTION Callback_svn_client_info ()
* DESCRIPT
*******************************************************************************/
svn_error_t *
Callback_svn_client_info
(void *baton, const char *path, const svn_info_t *info, apr_pool_t
*pool)
{
svn_error_t SvnError;
svn_error_t *pSvnError;
pSvnError = &SvnError;
return (pSvnError);
//svn_error_t SvnError;
//return (&SvnError);
}
/
*******************************************************************************
* FUNCTION Callback_svn_wc_notify_func
* DESCRIPT
*******************************************************************************/
void
Callback_svn_wc_notify_func
( void *baton,
const char *path,
svn_wc_notify_action_t action,
svn_node_kind_t kind,
const char *mime_type,
svn_wc_notify_state_t content_state,
svn_wc_notify_state_t prop_state,
svn_revnum_t revision
)
{
}
/
*******************************************************************************
* FUNCTION Callback_svn_client_get_commit_log()
* DESCRIPT
*******************************************************************************/
svn_error_t *
Callback_svn_client_get_commit_log
( const char **log_msg,
const char **tmp_file,
apr_array_header_t *commit_items,
void *baton,
apr_pool_t *pool
)
{
svn_error_t SvnError;
svn_error_t *pSvnError;
pSvnError = &SvnError;
return (pSvnError);
}
/
*******************************************************************************
* FUNCTION Callback_svn_cancel_func_t()
* DESCRIPT
*******************************************************************************/
svn_error_t *
Callback_svn_cancel_func_t (void *cancel_baton)
{
svn_error_t SvnError;
svn_error_t *pSvnError;
pSvnError = &SvnError;
return (pSvnError);
}
/
*******************************************************************************
* FUNCTION Callback_svn_wc_notify_func2()
* DESCRIPT
*******************************************************************************/
void
Callback_svn_wc_notify_func2
(void *baton, const svn_wc_notify_t *notify, apr_pool_t *pool)
{
}
/
*******************************************************************************
* FUNCTION Callback_svn_client_get_commit_log2_t()
* DESCRIPT
*******************************************************************************/
svn_error_t *
Callback_svn_client_get_commit_log2_t
( const char **log_msg,
const char **tmp_file,
const apr_array_header_t *commit_items,
void *baton,
apr_pool_t *pool
)
{
svn_error_t SvnError;
svn_error_t *pSvnError;
pSvnError = &SvnError;
return (pSvnError);
}
/
*******************************************************************************
* FUNCTION Callback_svn_ra_progress_notify_func_t()
* DESCRIPT
*******************************************************************************/
void
Callback_svn_ra_progress_notify_func_t
(apr_off_t progress, apr_off_t total, void *baton, apr_pool_t *pool)
{
}
// DDDDD OOO CCC U U M M EEEE N N TTTTT A
TTTTT III OOO N N
// D D O O C C U U MM MM E NN N T A A
T I O O NN N
// D D O O C U U M M M M EEE NN N T A A
T I O O NN N
// D D O O C U U M M M E N N N T AAAAA
T I O O N N N
// D D O O C C U U M M M E N NN T A A
T I O O N NN
// DDDDD OOO CCC UUU M M EEEEE N NN T A A
T III OOO N NN
#if (0)
/
*******************************************************************************
* PATH svn-win32-1.4.6\include
* FILE svn_types.h
*******************************************************************************/
typedef struct svn_error_t
{
apr_status_t apr_err; /** APR error value, possibly SVN_
custom err */
const char *message; /** details from producer of error */
struct svn_error_t *child; /** ptr to the error we "wrap" */
apr_pool_t *pool; /** The pool holding this error and any
child errors it wraps */
const char *file; /** Source file where the error
originated. Only used iff @c SVN_DEBUG. */
long line; /** Source line where the error
originated. Only used iff @c SVN_DEBUG. */
} svn_error_t;
/
*******************************************************************************
* PATH svn-win32-1.4.6\include
* FILE svn_opt.h
*******************************************************************************/
enum svn_opt_revision_kind
{
svn_opt_revision_unspecified, /** No revision information given.
*/
svn_opt_revision_number, /** revision given as number */
svn_opt_revision_date, /** revision given as date */
svn_opt_revision_committed, /** rev of most recent change */
svn_opt_revision_previous, /** (rev of most recent change) - 1
*/
svn_opt_revision_base, /** .svn/entries current revision
*/
svn_opt_revision_working, /** current, plus local mods */
svn_opt_revision_head /** repository youngest */
};
typedef union svn_opt_revision_value_t
{
svn_revnum_t number;
apr_time_t date;
} svn_opt_revision_value_t;
typedef struct svn_opt_revision_t
{
enum svn_opt_revision_kind kind; /**< See
svn_opt_revision_kind */
svn_opt_revision_value_t value; /**< Extra data qualifying
the @c kind */
} svn_opt_revision_t;
/
*******************************************************************************
* PATH svn-win32-1.4.6\include
* FILE svn_client.h
*******************************************************************************/
/**
* The callback invoked by svn_client_info(). Each invocation
* describes @a path with the information present in @a info. Note
* that any fields within @a info may be NULL if information is
* unavailable. Use @a pool for all temporary allocation.
*
* @since New in 1.2.
*/
typedef svn_error_t *(*svn_info_receiver_t)
(void *baton,
const char *path,
const svn_info_t *info,
apr_pool_t *pool);
/
*******************************************************************************
* PATH svn-win32-1.4.6\include
* FILE svn_types.h
*******************************************************************************/
/** YABT: Yet Another Boolean Type */
typedef int svn_boolean_t;
/
*******************************************************************************
* PATH svn-win32-1.4.6\include
* FILE svn_client.h
*******************************************************************************/
typedef struct svn_client_ctx_t
{
svn_auth_baton_t * auth_baton; /** main
authentication baton. */
svn_wc_notify_func_t notify_func; /** notification
callback function. */
void * notify_baton; /** notification
callback baton for notify_func() */
svn_client_get_commit_log_t log_msg_func; /** Log message
callback function. NULL means that Subversion */
void * log_msg_baton; /** log message
callback baton */
apr_hash_t * config; /** a hash mapping
of <tt>const char *</tt> configuration file names to @c svn_config_t
*'s. */
svn_cancel_func_t cancel_func; /** a callback to
be used to see if the client wishes to cancel the running operation.
*/
void * cancel_baton; /** a baton to
pass to the cancellation callback. */
svn_wc_notify_func2_t notify_func2; /** notification
function, defaulting to a function that forwards to notify_func(). */
void * notify_baton2; /** notification
baton for notify_func2(). */
svn_client_get_commit_log2_t log_msg_func2; /** Log message
callback function. NULL means that Subversion should try log_msg_func.
*/
void * log_msg_baton2; /** callback baton
for log_msg_func2 */
svn_ra_progress_notify_func_t progress_func; /** Notification
callback for network progress information. */
void * progress_baton; /** Callback baton
for progress_func. */
} svn_client_ctx_t;
#endif
/
*******************************************************************************
* PROJECT END
*******************************************************************************/
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Re: Subversion repository most-recent revision number
Posted by "C. Michael Pilato" <cm...@collab.net>.
Xypanastheu wrote:
> I am trying to write a small Windows console application
> that uses the SVN client C++ API
> to get the latest / most-recent revision number
> from a Subversion repository out on the server.
Your mail is misdirected: this list is for discussion around the development
*of* Subversion, not any ol' development *atop* Subversion.
That said, if all you want to do is display the youngest revision number
from a repository, you should consider using svn_ra_get_latest_revnum
/**
* Get the latest revision number from the repository of @a session.
*
* Use @a pool for memory allocation.
*
* @since New in 1.2.
*/
svn_error_t *svn_ra_get_latest_revnum(svn_ra_session_t *session,
svn_revnum_t *latest_revnum,
apr_pool_t *pool);
You can use the example program svnput.c[1] to see how to do this in C --
not sure what the C++ API looks like around this area. (svnput.c does more
than what you are asking for, but would work as an example.)
[1] http://svn.collab.net/repos/svn/trunk/tools/examples/svnput.c
--
C. Michael Pilato <cm...@collab.net>
CollabNet <> www.collab.net <> Distributed Development On Demand