MDEV-12832 : remove libarchive support from mariabackup,

due to different packaging issues.

Also, Percona thinks that tar support has  many limitations
and should be removed as well( see discussion  in
https://bugs.launchpad.net/percona-xtrabackup/+bug/1681721)

there is an alternative streaming format xbstream that is supported and
does not have these limitations.

extra/mariabackup/CMakeLists.txt

@@ -27,101 +27,6 @@ IF(NOT WIN32)
   ENDIF()
 ENDIF()
 
-IF(WITH_LIBARCHIVE STREQUAL "STATIC")
-  SET(CMAKE_FIND_LIBRARY_SUFFIXES .a .lib)
-ENDIF()
-
-FIND_PACKAGE(LibArchive)
-
-IF(NOT DEFINED WITH_LIBARCHIVE)  
-  IF(LibArchive_FOUND)
-    SET(WITH_LIBARCHIVE_DEFAULT ON)
-  ELSE()
-    SET(WITH_LIBARCHIVE_DEFAULT OFF)
-  ENDIF()
-  SET(WITH_LIBARCHIVE ${WITH_LIBARCHIVE_DEFAULT} CACHE STRING "Use libarchive for streaming features (ON, OFF or STATIC)" )
-ENDIF()
-
-IF(NOT WITH_LIBARCHIVE MATCHES "^(ON|OFF|STATIC)$")
-  MESSAGE(FATAL_ERROR "Invalid value for WITH_LIBARCHIVE: '${WITH_LIBARCHIVE}'. Use one of ON, OFF or STATIC")
-ENDIF()
-
-IF(UNIX)
-  SET(PIC_FLAG -fPIC)
-ENDIF()
-
-IF((NOT WITH_LIBARCHIVE STREQUAL "OFF") AND (NOT LibArchive_FOUND))
-  IF(CMAKE_VERSION VERSION_LESS "2.8.12")
-    MESSAGE("libarchive can't be built, old cmake")
-  ELSE()
-    # Build a local version
-    INCLUDE(ExternalProject)
-    SET(LIBARCHIVE_DIR  ${CMAKE_CURRENT_BINARY_DIR}/libarchive)
-    SET(libarchive_PREFIX ${CMAKE_CURRENT_BINARY_DIR}/libarchive)
-    SET(libarchive_CMAKE_ARGS
-      -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR> 
-      -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-      -DENABLE_ICONV=OFF
-      -DENABLE_TAR=ON
-      -DENABLE_OPENSSL=OFF
-      -DENABLE_TEST=OFF
-      "-DCMAKE_C_FLAGS_DEBUG=${CMAKE_C_FLAGS_DEBUG} ${PIC_FLAG}"
-      "-DCMAKE_C_FLAGS_RELWITHDEBINFO=${CMAKE_C_FLAGS_RELWITHDEBINFO} ${PIC_FLAG}"
-      "-DCMAKE_C_FLAGS_RELEASE=${CMAKE_C_FLAGS_RELEASE} ${PIC_FLAG}"
-      "-DCMAKE_C_FLAGS_MINSIZEREL=${CMAKE_C_FLAGS_MINSIZEREL} ${PIC_FLAG}"
-    )
-    IF(WIN32)
-      SET(libarchive_CMAKE_ARGS  ${libarchive_CMAKE_ARGS}    -DWINDOWS_VERSION=WIN7 -DCMAKE_DEBUG_POSTFIX=d)
-      SET(LIBARCHIVE_RELEASE_LIB ${LIBARCHIVE_DIR}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}archive_static${CMAKE_STATIC_LIBRARY_SUFFIX})
-      SET(LIBARCHIVE_DEBUG_LIB ${LIBARCHIVE_DIR}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}archive_staticd${CMAKE_STATIC_LIBRARY_SUFFIX})
-      SET(byproducts ${LIBARCHIVE_RELEASE_LIB} ${LIBARCHIVE_DEBUG_LIB})
-    ELSE()
-      SET(LIBARCHIVE_LIB ${LIBARCHIVE_DIR}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}archive${CMAKE_STATIC_LIBRARY_SUFFIX})
-      SET(byproducts ${LIBARCHIVE_LIB})
-    ENDIF()
-
-    IF(CMAKE_VERSION VERSION_GREATER "3.1")
-      SET(byproducts BUILD_BYPRODUCTS ${byproducts})
-    ENDIF()
-
-    ExternalProject_Add(libarchive
-      PREFIX ${libarchive_PREFIX}
-      DOWNLOAD_DIR ${LIBARCHIVE_DIR}
-      URL http://www.libarchive.org/downloads/libarchive-3.2.2.tar.gz
-      INSTALL_DIR ${LIBARCHIVE_DIR}
-      CMAKE_ARGS ${libarchive_CMAKE_ARGS}
-      ${byproducts}
-    )
-    ADD_LIBRARY(archive_static STATIC IMPORTED)
-    ADD_DEPENDENCIES(archive_static libarchive)
-    IF(WIN32)
-      SET_PROPERTY(TARGET archive_static PROPERTY IMPORTED_LOCATION_RELWITHDEBINFO ${LIBARCHIVE_RELEASE_LIB})
-      SET_PROPERTY(TARGET archive_static PROPERTY IMPORTED_LOCATION_RELEASE ${LIBARCHIVE_RELEASE_LIB})
-      SET_PROPERTY(TARGET archive_static PROPERTY IMPORTED_LOCATION_DEBUG ${LIBARCHIVE_DEBUG_LIB})
-      SET_PROPERTY(TARGET archive_static PROPERTY IMPORTED_LOCATION_MINSIZEREL ${LIBARCHIVE_RELEASE_LIB})
-    ELSE()
-      SET_PROPERTY(TARGET archive_static PROPERTY IMPORTED_LOCATION ${LIBARCHIVE_LIB})
-    ENDIF()
-
-    SET(LibArchive_FOUND ON )
-    SET(LibArchive_INCLUDE_DIRS ${LIBARCHIVE_DIR}/include )
-    SET(LibArchive_LIBRARIES archive_static)
-    IF(WIN32)
-      SET(LIBARCHIVE_STATIC 1)
-    ENDIF()
-  ENDIF()
-ENDIF()
-
-
-IF(WITH_LIBARCHIVE AND LibArchive_FOUND)
-  ADD_DEFINITIONS(-DHAVE_LIBARCHIVE)
-  IF(LIBARCHIVE_STATIC)
-    ADD_DEFINITIONS(-DLIBARCHIVE_STATIC)
-  ENDIF()
-  INCLUDE_DIRECTORIES(${LibArchive_INCLUDE_DIRS})
-  LINK_LIBRARIES(${LibArchive_LIBRARIES})
-  SET(DS_ARCHIVE_SOURCE ds_archive.c)
-ENDIF()
 
 INCLUDE_DIRECTORIES(
   ${CMAKE_SOURCE_DIR}/include
@@ -154,7 +59,6 @@ MYSQL_ADD_EXECUTABLE(mariabackup
   innobackupex.cc
   changed_page_bitmap.cc
   datasink.c
-  ${DS_ARCHIVE_SOURCE}
   ds_buffer.c
   ds_compress.c
   ds_local.c

extra/mariabackup/innobackupex.cc

@@ -848,9 +848,7 @@ ibx_get_one_option(int optid,
 		opt_ibx_decrypt = true;
 		break;
 	case OPT_STREAM:
-		if (!strcasecmp(argument, "tar"))
-			xtrabackup_stream_fmt = XB_STREAM_FMT_TAR;
-		else if (!strcasecmp(argument, "xbstream"))
+    if (!strcasecmp(argument, "xbstream"))
 			xtrabackup_stream_fmt = XB_STREAM_FMT_XBSTREAM;
 		else {
 			ibx_msg("Invalid --stream argument: %s\n", argument);

extra/mariabackup/xbstream.h

@@ -42,7 +42,6 @@ typedef struct xb_wstream_file_struct xb_wstream_file_t;
 
 typedef enum {
 	XB_STREAM_FMT_NONE,
-	XB_STREAM_FMT_TAR,
 	XB_STREAM_FMT_XBSTREAM
 } xb_stream_fmt_t;
 

extra/mariabackup/xtrabackup.cc

@@ -704,11 +704,7 @@ struct my_option xb_client_options[] =
 
   {"stream", OPT_XTRA_STREAM, "Stream all backup files to the standard output "
    "in the specified format." 
-#ifdef HAVE_LIBARCHIVE
-   "Supported formats are 'tar' and 'xbstream'."
-#else
    "Supported format is 'xbstream'."
-#endif
    ,
    (G_PTR*) &xtrabackup_stream_str, (G_PTR*) &xtrabackup_stream_str, 0, GET_STR,
    REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
@@ -1453,9 +1449,7 @@ xb_get_one_option(int optid,
     xtrabackup_target_dir= xtrabackup_real_target_dir;
     break;
   case OPT_XTRA_STREAM:
-    if (!strcasecmp(argument, "tar"))
-      xtrabackup_stream_fmt = XB_STREAM_FMT_TAR;
-    else if (!strcasecmp(argument, "xbstream"))
+    if (!strcasecmp(argument, "xbstream"))
       xtrabackup_stream_fmt = XB_STREAM_FMT_XBSTREAM;
     else
     {
@@ -3106,14 +3100,6 @@ files first, and then streams them in a serialized way when closed. */
 static void
 xtrabackup_init_datasinks(void)
 {
-	if (xtrabackup_parallel > 1 && xtrabackup_stream &&
-	    xtrabackup_stream_fmt == XB_STREAM_FMT_TAR) {
-		msg("xtrabackup: warning: the --parallel option does not have "
-		    "any effect when streaming in the 'tar' format. "
-		    "You can use the 'xbstream' format instead.\n");
-		xtrabackup_parallel = 1;
-	}
-
 	/* Start building out the pipelines from the terminus back */
 	if (xtrabackup_stream) {
 		/* All streaming goes to stdout */
@@ -3131,30 +3117,17 @@ xtrabackup_init_datasinks(void)
 	/* Stream formatting */
 	if (xtrabackup_stream) {
 		ds_ctxt_t	*ds;
-		if (xtrabackup_stream_fmt == XB_STREAM_FMT_TAR) {
-			ds = ds_create(xtrabackup_target_dir, DS_TYPE_ARCHIVE);
-		} else if (xtrabackup_stream_fmt == XB_STREAM_FMT_XBSTREAM) {
-			ds = ds_create(xtrabackup_target_dir, DS_TYPE_XBSTREAM);
-		} else {
-			/* bad juju... */
-			ds = NULL;
-		}
+
+	 ut_a(xtrabackup_stream_fmt == XB_STREAM_FMT_XBSTREAM);
+	 ds = ds_create(xtrabackup_target_dir, DS_TYPE_XBSTREAM);
 
 		xtrabackup_add_datasink(ds);
 
 		ds_set_pipe(ds, ds_data);
 		ds_data = ds;
 
-		if (xtrabackup_stream_fmt != XB_STREAM_FMT_XBSTREAM) {
 
-			/* 'tar' does not allow parallel streams */
-			ds_redo = ds_meta = ds_create(xtrabackup_target_dir,
-						      DS_TYPE_TMPFILE);
-			xtrabackup_add_datasink(ds_meta);
-			ds_set_pipe(ds_meta, ds);
-		} else {
-			ds_redo = ds_meta = ds_data;
-		}
+		ds_redo = ds_meta = ds_data;
 	}
 
 	/* Encryption */
@@ -7406,22 +7379,6 @@ int main(int argc, char **argv)
 		innobase_file_per_table = TRUE;
 	}
 
-	if (xtrabackup_incremental && xtrabackup_stream &&
-	    xtrabackup_stream_fmt == XB_STREAM_FMT_TAR) {
-		msg("xtrabackup: error: "
-		    "streaming incremental backups are incompatible with the \n"
-		    "'tar' streaming format. Use --stream=xbstream instead.\n");
-		exit(EXIT_FAILURE);
-	}
-
-	if ((xtrabackup_compress || xtrabackup_encrypt) && xtrabackup_stream &&
-	    xtrabackup_stream_fmt == XB_STREAM_FMT_TAR) {
-		msg("xtrabackup: error: "
-		    "compressed and encrypted backups are incompatible with the \n"
-		    "'tar' streaming format. Use --stream=xbstream instead.\n");
-		exit(EXIT_FAILURE);
-	}
-
 	if (!xtrabackup_prepare &&
 	    (innobase_log_arch_dir || xtrabackup_archived_to_lsn)) {
 

mysql-test/suite/mariabackup/suite.pm

@@ -21,11 +21,6 @@ $ENV{XBSTREAM}= ::mtr_exe_maybe_exists(
       "$::bindir/extra/mariabackup/$::opt_vs_config/mbstream",
       "$::path_client_bindir/mbstream");
 
-my $tar_version = `tar --version 2>&1`;
-$ENV{HAVE_TAR} = $! ? 0: 1;
-my $mariabackup_help=`$mariabackup_exe --help 2>&1`;
-$ENV{HAVE_XTRABACKUP_TAR_SUPPORT} =  (index($mariabackup_help,"'tar'") == -1) ? 0 : 1;
-
 $ENV{INNOBACKUPEX}= "$mariabackup_exe --innobackupex";
 
 sub skip_combinations {

mysql-test/suite/mariabackup/tar.result

-CREATE TABLE t(i INT) ENGINE INNODB;
-INSERT INTO t VALUES(1);
-# xtrabackup backup
-# xtrabackup prepare
-# shutdown server
-# remove datadir
-# xtrabackup move back
-# restart server
-SELECT * FROM t;
-i
-1
-DROP TABLE t;

mysql-test/suite/mariabackup/tar.test

-if (`select $HAVE_TAR = 0`) 
-{
-  --skip No tar
-}
-if (`select $HAVE_XTRABACKUP_TAR_SUPPORT = 0`)
-{
-  --skip Compiled without libarchive
-}
-
-
-CREATE TABLE t(i INT) ENGINE INNODB;
-INSERT INTO t VALUES(1);
-
-echo # xtrabackup backup;
-let $targetdir=$MYSQLTEST_VARDIR/tmp/backup;
-let $streamfile=$MYSQLTEST_VARDIR/tmp/backup.tar;
-mkdir $targetdir;
-
-
-exec $XTRABACKUP "--defaults-file=$MYSQLTEST_VARDIR/my.cnf" --backup --stream=tar > $streamfile 2>$targetdir/backup_stream.log;
---disable_result_log
-exec tar -C $targetdir -x < $streamfile;
-echo # xtrabackup prepare;
-exec $XTRABACKUP --prepare --target-dir=$targetdir;
-
--- source include/restart_and_restore.inc
---enable_result_log
-SELECT * FROM t;
-DROP TABLE t;
-rmdir $targetdir;

mysql-test/suite/mariabackup/xbstream.test

@@ -9,7 +9,7 @@ echo # xtrabackup backup to stream;
 exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf  --backup  --stream=xbstream > $streamfile 2>$targetdir/backup_stream.log;
 echo # xbstream extract;
 --disable_result_log
-exec $XBSTREAM -x -C $targetdir --parallel=16 < $streamfile;
+exec $XBSTREAM -x -C $targetdir  < $streamfile;
 
 echo # xtrabackup prepare;
 exec $XTRABACKUP --prepare --target-dir=$targetdir;