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Re: [PATCH 04/13] Add skeleton dump editor

From: Ramkumar Ramachandra <artagnon_at_gmail.com>
Date: Thu, 8 Jul 2010 08:17:36 +0200

Hi,

Jonathan Nieder writes:
> Ramkumar Ramachandra wrote:
>
> > Add a dump editor and write out skeleton callback functions according
> > to the API documentation of svn_delta_editor_t. Also expose
> > get_dump_editor through a header.
>
> This commit message tells me nothing... Maybe:
>
> Add a no-op svn_editor. The function to retrieve it is called
> get_dump_editor because it is planned to tweak it to write a
> dumpfile. But for now it is more useful when used with the
> debug_editor, to get a list of editor operations printed to
> stderr.

Fixed.

> It could make sense to squash this with patch 5 as a demo.

Hm, I'm not too competent with handling lots of conflicts during an
interactive rebase: I'll try this out in a new branch and let you know
how it went.

> > --- /dev/null
> > +++ b/dump_editor.c
> > @@ -0,0 +1,143 @@
> > +/* Licensed under a two-clause BSD-style license.
> > + * See LICENSE for details.
> > + */
> > +
> > +#include "svn_pools.h"
> > +#include "svn_error.h"
> > +#include "svn_iter.h"
> > +#include "svn_repos.h"
> > +#include "svn_string.h"
> > +#include "svn_dirent_uri.h"
> > +#include "svn_path.h"
> > +#include "svn_time.h"
> > +#include "svn_checksum.h"
> > +#include "svn_props.h"
>
> Are these all needed?

I figured that adding some implies adding some others. Fixed.

> [...]
> > +svn_error_t *open_root(void *edit_baton,
> > + svn_revnum_t base_revision,
> > + apr_pool_t *pool,
> > + void **root_baton)
> > +{
> > + return SVN_NO_ERROR;
> > +}
>
> Might make sense to use
>
> *root_baton = NULL;
>
> for easier debugging.
>
> [...]
> > +svn_error_t *add_directory(const char *path,
> [...]
> > +svn_error_t *open_directory(const char *path,
> [...]
> > +svn_error_t *add_file(const char *path,
> [...]
> > +svn_error_t *open_file(const char *path,
> [...]
> > +svn_error_t *apply_textdelta(void *file_baton, const char *base_checksum,
>
> Likewise.

Fixed. Excellent suggestion.

> [...]
> > +++ b/dumpr_util.h
> > @@ -0,0 +1,29 @@
> > +#ifndef DUMPR_UTIL_H_
> > +#define DUMPR_UTIL_H_
> > +
> > +struct edit_baton {
>
> A more specific name might be nice (or might not, depending on the
> prevailing style in svn; I ought to check but I am too lazy).
>
> > + /* The stream to dump to: stdout */
> > + svn_stream_t *stream;
> > +
> > + /* pool is for per-edit-session allocations */
> > + apr_pool_t *pool;
>
> Unused; probably should delay adding these until there is a user to
> explain them.
>
> > +
> > + svn_revnum_t current_rev;
>
> Used.
>
> > +
> > + /* Store the properties that changed */
> > + apr_hash_t *properties;
> > + apr_hash_t *del_properties; /* Value is always 0x1 */
> > + svn_stringbuf_t *propstring;
> > +
> > + /* Path of changed file */
> > + const char *changed_path;
> > +
> > + /* Was a copy command issued? */
> > + svn_boolean_t is_copy;
> > +
> > + /* Temporary file to write delta to along with its checksum */
> > + char *temp_filepath;
> > + svn_checksum_t *checksum;
>
> All unused.
>
> > +};

Here's the diff after your review. It took me quite a long time to get
the interactive rebase right.

Add skeleton dump editor

Add a no-op svn_editor and expose the function get_dump_editor; this
dump editor will later be filled in to write the dumpfile. Currently,
it is more useful to wrap it in the debug_editor to get a list of
editor operations printed to stderr.

diff --git a/dump_editor.c b/dump_editor.c
index 2fdf93c..e1f3fca 100644
--- a/dump_editor.c
+++ b/dump_editor.c
@@ -3,14 +3,8 @@
  */
 
 #include "svn_pools.h"
-#include "svn_error.h"
-#include "svn_iter.h"
 #include "svn_repos.h"
-#include "svn_string.h"
-#include "svn_dirent_uri.h"
 #include "svn_path.h"
-#include "svn_time.h"
-#include "svn_checksum.h"
 #include "svn_props.h"
 
 #include "dumpr_util.h"
@@ -20,6 +14,7 @@ svn_error_t *open_root(void *edit_baton,
                        apr_pool_t *pool,
                        void **root_baton)
 {
+ *root_baton = NULL;
         return SVN_NO_ERROR;
 }
 
@@ -38,6 +33,7 @@ svn_error_t *add_directory(const char *path,
                            apr_pool_t *pool,
                            void **child_baton)
 {
+ *child_baton = NULL;
         return SVN_NO_ERROR;
 }
 
@@ -47,6 +43,7 @@ svn_error_t *open_directory(const char *path,
                             apr_pool_t *pool,
                             void **child_baton)
 {
+ *child_baton = NULL;
         return SVN_NO_ERROR;
 }
 
@@ -63,6 +60,7 @@ svn_error_t *add_file(const char *path,
                       apr_pool_t *pool,
                       void **file_baton)
 {
+ *file_baton = NULL;
         return SVN_NO_ERROR;
 }
 
@@ -72,6 +70,7 @@ svn_error_t *open_file(const char *path,
                        apr_pool_t *pool,
                        void **file_baton)
 {
+ *file_baton = NULL;
         return SVN_NO_ERROR;
 }
 
@@ -96,6 +95,8 @@ svn_error_t *apply_textdelta(void *file_baton, const char *base_checksum,
                              svn_txdelta_window_handler_t *handler,
                              void **handler_baton)
 {
+ *handler = svn_delta_noop_window_handler;
+ *handler_baton = NULL;
         return SVN_NO_ERROR;
 }

diff --git a/dumpr_util.h b/dumpr_util.h
index d206c19..2906543 100644
--- a/dumpr_util.h
+++ b/dumpr_util.h
@@ -2,28 +2,8 @@
 #define DUMPR_UTIL_H_
 
 struct edit_baton {
- /* The stream to dump to: stdout */
         svn_stream_t *stream;
-
- /* pool is for per-edit-session allocations */
- apr_pool_t *pool;
-
         svn_revnum_t current_rev;
-
- /* Store the properties that changed */
- apr_hash_t *properties;
- apr_hash_t *del_properties; /* Value is always 0x1 */
- svn_stringbuf_t *propstring;
-
- /* Path of changed file */
- const char *changed_path;
-
- /* Was a copy command issued? */
- svn_boolean_t is_copy;
-
- /* Temporary file to write delta to along with its checksum */
- char *temp_filepath;
- svn_checksum_t *checksum;
 };
 
 #endif
Received on 2010-07-08 08:16:33 CEST

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