The SVN client uses the RA API to connect to a remote server and
replay revisions. In future, it will dump the data in every revision
to stdout in dumpfile format (hopefully) without resorting to the FS
API and svn_repos_dump_fs2.
Signed-off-by: Ramkumar Ramachandra <artagnon@xxxxxxxxx>
---
Makefile | 2 +
delta_editor.c | 112 ++++++++++++++++++++++++++++++++++++++++++++++
delta_editor.h | 66 +++++++++++++++++++++++++++
svnclient_ra.c | 135 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 315 insertions(+), 0 deletions(-)
create mode 100644 Makefile
create mode 100644 delta_editor.c
create mode 100644 delta_editor.h
create mode 100644 svnclient_ra.c
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..662061b
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+svnclient_ra: svnclient_ra.c
+ cc -Wall -Werror -ggdb -O1 -o $@ -lsvn_client-1 svnclient_ra.c delta_editor.c -I. -I/usr/include/subversion-1 -I/usr/include/apr-1.0
diff --git a/delta_editor.c b/delta_editor.c
new file mode 100644
index 0000000..8c722cd
--- /dev/null
+++ b/delta_editor.c
@@ -0,0 +1,112 @@
+#include "svn_pools.h"
+#include "svn_cmdline.h"
+#include "svn_client.h"
+#include "svn_ra.h"
+
+#include "delta_editor.h"
+
+svn_error_t *set_target_revision(void *edit_baton,
+ svn_revnum_t target_revision,
+ apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
+
+
+svn_error_t *open_root(void *edit_baton, svn_revnum_t base_revision,
+ apr_pool_t *dir_pool, void **root_baton)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *delete_entry(const char *path, svn_revnum_t revision,
+ void *parent_baton, apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *add_directory(const char *path, void *parent_baton,
+ const char *copyfrom_path,
+ svn_revnum_t copyfrom_revision,
+ apr_pool_t *dir_pool, void **child_baton)
+{
+ return SVN_NO_ERROR;
+}
+
+
+svn_error_t *open_directory(const char *path, void *parent_baton,
+ svn_revnum_t base_revision,
+ apr_pool_t *dir_pool, void **child_baton)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *change_dir_prop(void *dir_baton, const char *name,
+ const svn_string_t *value, apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *close_directory(void *dir_baton, apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *absent_directory(const char *path, void *parent_baton,
+ apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *add_file(const char *path, void *parent_baton,
+ const char *copyfrom_path,
+ svn_revnum_t copyfrom_revision,
+ apr_pool_t *file_pool, void **file_baton)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *open_file(const char *path, void *parent_baton,
+ svn_revnum_t base_revision, apr_pool_t *file_pool,
+ void **file_baton)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *apply_textdelta(void *file_baton,
+ const char *base_checksum,
+ apr_pool_t *pool,
+ svn_txdelta_window_handler_t *handler,
+ void **handler_baton)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *change_file_prop(void *file_baton, const char *name,
+ const svn_string_t *value,
+ apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *close_file(void *file_baton, const char *text_checksum,
+ apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *absent_file(const char *path, void *parent_baton,
+ apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *close_edit(void *edit_baton, apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *abort_edit(void *edit_baton, apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
diff --git a/delta_editor.h b/delta_editor.h
new file mode 100644
index 0000000..49652d7
--- /dev/null
+++ b/delta_editor.h
@@ -0,0 +1,66 @@
+#ifndef DELTA_EDITOR_H_
+#define DELTA_EDITOR_H_
+
+#include "svn_pools.h"
+#include "svn_cmdline.h"
+#include "svn_client.h"
+#include "svn_ra.h"
+
+svn_error_t *set_target_revision(void *edit_baton,
+ svn_revnum_t target_revision,
+ apr_pool_t *pool);
+
+svn_error_t *open_root(void *edit_baton, svn_revnum_t base_revision,
+ apr_pool_t *dir_pool, void **root_baton);
+
+svn_error_t *delete_entry(const char *path, svn_revnum_t revision,
+ void *parent_baton, apr_pool_t *pool);
+
+svn_error_t *add_directory(const char *path, void *parent_baton,
+ const char *copyfrom_path,
+ svn_revnum_t copyfrom_revision,
+ apr_pool_t *dir_pool, void **child_baton);
+
+
+svn_error_t *open_directory(const char *path, void *parent_baton,
+ svn_revnum_t base_revision,
+ apr_pool_t *dir_pool, void **child_baton);
+
+svn_error_t *change_dir_prop(void *dir_baton, const char *name,
+ const svn_string_t *value, apr_pool_t *pool);
+
+svn_error_t *close_directory(void *dir_baton, apr_pool_t *pool);
+
+svn_error_t *absent_directory(const char *path, void *parent_baton,
+ apr_pool_t *pool);
+
+svn_error_t *add_file(const char *path, void *parent_baton,
+ const char *copyfrom_path,
+ svn_revnum_t copyfrom_revision,
+ apr_pool_t *file_pool, void **file_baton);
+
+svn_error_t *open_file(const char *path, void *parent_baton,
+ svn_revnum_t base_revision, apr_pool_t *file_pool,
+ void **file_baton);
+
+svn_error_t *apply_textdelta(void *file_baton,
+ const char *base_checksum,
+ apr_pool_t *pool,
+ svn_txdelta_window_handler_t *handler,
+ void **handler_baton);
+
+svn_error_t *change_file_prop(void *file_baton, const char *name,
+ const svn_string_t *value,
+ apr_pool_t *pool);
+
+svn_error_t *close_file(void *file_baton, const char *text_checksum,
+ apr_pool_t *pool);
+
+svn_error_t *absent_file(const char *path, void *parent_baton,
+ apr_pool_t *pool);
+
+svn_error_t *close_edit(void *edit_baton, apr_pool_t *pool);
+
+svn_error_t *abort_edit(void *edit_baton, apr_pool_t *pool);
+
+#endif
diff --git a/svnclient_ra.c b/svnclient_ra.c
new file mode 100644
index 0000000..a754494
--- /dev/null
+++ b/svnclient_ra.c
@@ -0,0 +1,135 @@
+#include "svn_pools.h"
+#include "svn_cmdline.h"
+#include "svn_client.h"
+#include "svn_ra.h"
+
+#include "delta_editor.h"
+
+static apr_pool_t *pool = NULL;
+static svn_client_ctx_t *ctx = NULL;
+static svn_ra_session_t *session = NULL;
+
+static svn_error_t *setup_delta_editor(svn_delta_editor_t **editor)
+{
+ *editor = svn_delta_default_editor(pool);
+ (*editor)->set_target_revision = set_target_revision;
+ (*editor)->open_root = open_root;
+ (*editor)->delete_entry = delete_entry;
+ (*editor)->add_directory = add_directory;
+ (*editor)->open_directory = open_directory;
+ (*editor)->add_file = add_file;
+ (*editor)->open_file = open_file;
+ (*editor)->apply_textdelta = apply_textdelta;
+ (*editor)->close_file = close_file;
+ (*editor)->close_directory = close_directory;
+ (*editor)->change_file_prop = change_file_prop;
+ (*editor)->change_dir_prop = change_dir_prop;
+ (*editor)->close_edit = close_edit;
+ (*editor)->absent_directory = absent_directory;
+ (*editor)->absent_file = absent_file;
+ (*editor)->abort_edit = abort_edit;
+ return SVN_NO_ERROR;
+}
+
+static svn_error_t *replay_revstart(svn_revnum_t revision,
+ void *replay_baton,
+ const svn_delta_editor_t **editor,
+ void **edit_baton,
+ apr_hash_t *rev_props,
+ apr_pool_t *pool)
+{
+ return SVN_NO_ERROR;
+}
+
+static svn_error_t *replay_revend(svn_revnum_t revision,
+ void *replay_baton,
+ const svn_delta_editor_t *editor,
+ void *edit_baton,
+ apr_hash_t *rev_props,
+ apr_pool_t *pool)
+{
+ SVN_ERR(editor->close_edit(edit_baton, pool));
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *build_auth_baton()
+{
+ svn_auth_provider_object_t *provider;
+ apr_array_header_t *providers
+ = apr_array_make (pool, 4, sizeof (svn_auth_provider_object_t *));
+
+ svn_auth_get_simple_prompt_provider (&provider,
+ NULL,
+ NULL,
+ 2,
+ pool);
+ APR_ARRAY_PUSH (providers, svn_auth_provider_object_t *) = provider;
+
+ svn_auth_get_username_prompt_provider (&provider,
+ NULL,
+ NULL,
+ 2,
+ pool);
+ APR_ARRAY_PUSH (providers, svn_auth_provider_object_t *) = provider;
+
+ svn_auth_open (&ctx->auth_baton, providers, pool);
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *populate_context()
+{
+ SVN_ERR(svn_config_get_config(&(ctx->config), NULL, pool));
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *open_connection(const char *url)
+{
+ SVN_ERR(svn_config_ensure (NULL, pool));
+ SVN_ERR(svn_client_create_context (&ctx, pool));
+ SVN_ERR(svn_ra_initialize(pool));
+
+#if defined(WIN32) || defined(__CYGWIN__)
+ if (getenv("SVN_ASP_DOT_NET_HACK"))
+ SVN_ERR(svn_wc_set_adm_dir("_svn", pool));
+#endif
+
+ SVN_ERR(populate_context());
+ SVN_ERR(build_auth_baton());
+ SVN_ERR(svn_client_open_ra_session(&session, url, ctx, pool));
+ return SVN_NO_ERROR;
+}
+
+svn_error_t *replay_range(svn_revnum_t start_revision, svn_revnum_t end_revision)
+{
+ svn_revnum_t latest_revision;
+ svn_delta_editor_t *editor;
+ svn_error_t *err;
+ SVN_ERR(svn_ra_get_latest_revnum(session, &latest_revision, pool));
+ printf("%ld\n", latest_revision);
+ SVN_ERR(setup_delta_editor(&editor));
+ SVN_ERR(svn_ra_replay_range(session, start_revision, end_revision,
+ 0, TRUE, replay_revstart, replay_revend, NULL, pool));
+ return SVN_NO_ERROR;
+}
+
+void close_connection()
+{
+ svn_pool_destroy(pool);
+}
+
+int main()
+{
+ const char url[] = "http://svn.apache.org/repos/asf/subversion/trunk";;
+ svn_revnum_t start_revision = 0, end_revision = 5;
+ if (svn_cmdline_init ("svnclient_ra", stderr) != EXIT_SUCCESS)
+ return EXIT_FAILURE;
+ pool = svn_pool_create(NULL);
+
+ if(open_connection(url) != SVN_NO_ERROR)
+ return 1;
+ if(replay_range(start_revision, end_revision) != SVN_NO_ERROR)
+ return 1;
+
+ close_connection();
+ return 0;
+}
--
1.7.1
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