MDEV-26573 : A static analyzer warning about ds_archive.cc

This file had not been compiled for long time.
Remove this from the tree.

extra/mariabackup/datasink.cc

@@ -22,7 +22,6 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1335  USA
 #include "common.h"
 #include "datasink.h"
 #include "ds_compress.h"
-#include "ds_archive.h"
 #include "ds_xbstream.h"
 #include "ds_local.h"
 #include "ds_stdout.h"
@@ -44,13 +43,6 @@ ds_create(const char *root, ds_type_t type)
 	case DS_TYPE_LOCAL:
 		ds = &datasink_local;
 		break;
-	case DS_TYPE_ARCHIVE:
-#ifdef HAVE_LIBARCHIVE
-		ds = &datasink_archive;
-#else
-		die("mariabackup was built without libarchive support");
-#endif
-		break;
 	case DS_TYPE_XBSTREAM:
 		ds = &datasink_xbstream;
 		break;

extra/mariabackup/datasink.h

@@ -63,7 +63,6 @@ static inline int dummy_remove(const char *) {
 typedef enum {
 	DS_TYPE_STDOUT,
 	DS_TYPE_LOCAL,
-	DS_TYPE_ARCHIVE,
 	DS_TYPE_XBSTREAM,
 	DS_TYPE_COMPRESS,
 	DS_TYPE_ENCRYPT,

extra/mariabackup/ds_archive.cc

-/******************************************************
-Copyright (c) 2013 Percona LLC and/or its affiliates.
-
-Streaming implementation for XtraBackup.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; version 2 of the License.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1335  USA
-
-*******************************************************/
-
-#include <my_base.h>
-#include <archive.h>
-#include <archive_entry.h>
-#include "common.h"
-#include "datasink.h"
-
-#if ARCHIVE_VERSION_NUMBER < 3000000
-#define archive_write_add_filter_none(X) archive_write_set_compression_none(X)
-#define archive_write_free(X) archive_write_finish(X)
-#endif
-
-typedef struct {
-	struct archive	*archive;
-	ds_file_t	*dest_file;
-	pthread_mutex_t	mutex;
-} ds_archive_ctxt_t;
-
-typedef struct {
-	struct archive_entry	*entry;
-	ds_archive_ctxt_t	*archive_ctxt;
-} ds_archive_file_t;
-
-
-/***********************************************************************
-General archive interface */
-
-static ds_ctxt_t *archive_init(const char *root);
-static ds_file_t *archive_open(ds_ctxt_t *ctxt, const char *path,
-			      MY_STAT *mystat);
-static int archive_write(ds_file_t *file, const void *buf, size_t len);
-static int archive_close(ds_file_t *file);
-static void archive_deinit(ds_ctxt_t *ctxt);
-
-datasink_t datasink_archive = {
-	&archive_init,
-	&archive_open,
-	&archive_write,
-	&archive_close,
-	&dummy_remove,
-	&archive_deinit
-};
-
-static
-int
-my_archive_open_callback(struct archive *a __attribute__((unused)),
-		      void *data __attribute__((unused)))
-{
-	return ARCHIVE_OK;
-}
-
-static
-ssize_t
-my_archive_write_callback(struct archive *a __attribute__((unused)),
-		       void *data, const void *buffer, size_t length)
-{
-	ds_archive_ctxt_t	*archive_ctxt;
-
-	archive_ctxt = (ds_archive_ctxt_t *) data;
-
-	xb_ad(archive_ctxt != NULL);
-	xb_ad(archive_ctxt->dest_file != NULL);
-
-	if (!ds_write(archive_ctxt->dest_file, buffer, length)) {
-		return length;
-	}
-	return -1;
-}
-
-static
-int
-my_archive_close_callback(struct archive *a __attribute__((unused)),
-			  void *data __attribute__((unused)))
-{
-	return ARCHIVE_OK;
-}
-
-static
-ds_ctxt_t *
-archive_init(const char *root __attribute__((unused)))
-{
-	ds_ctxt_t		*ctxt;
-	ds_archive_ctxt_t	*archive_ctxt;
-	struct archive		*a;
-
-	ctxt = my_malloc(sizeof(ds_ctxt_t) + sizeof(ds_archive_ctxt_t),
-			 MYF(MY_FAE));
-	archive_ctxt = (ds_archive_ctxt_t *)(ctxt + 1);
-
-	if (pthread_mutex_init(&archive_ctxt->mutex, NULL)) {
-		msg("archive_init: pthread_mutex_init() failed.\n");
-		goto err;
-	}
-
-	a = archive_write_new();
-	if (a == NULL) {
-		msg("archive_write_new() failed.\n");
-		goto err;
-	}
-
-	archive_ctxt->archive = a;
-	archive_ctxt->dest_file = NULL;
-
-        if(archive_write_add_filter_none(a) != ARCHIVE_OK ||
-	    archive_write_set_format_pax_restricted(a) != ARCHIVE_OK ||
-	    /* disable internal buffering so we don't have to flush the
-	    output in xtrabackup */
-	    archive_write_set_bytes_per_block(a, 0) != ARCHIVE_OK) {
-		msg("failed to set libarchive archive options: %s\n",
-		    archive_error_string(a));
-                archive_write_free(a);
-		goto err;
-	}
-
-	if (archive_write_open(a, archive_ctxt, my_archive_open_callback,
-			       my_archive_write_callback,
-			       my_archive_close_callback) != ARCHIVE_OK) {
-		msg("cannot open output archive.\n");
-		return NULL;
-	}
-
-	ctxt->ptr = archive_ctxt;
-
-	return ctxt;
-
-err:
-	my_free(ctxt);
-	return NULL;
-}
-
-static
-ds_file_t *
-archive_open(ds_ctxt_t *ctxt, const char *path, MY_STAT *mystat)
-{
-	ds_archive_ctxt_t	*archive_ctxt;
-	ds_ctxt_t		*dest_ctxt;
-	ds_file_t		*file;
-	ds_archive_file_t	*archive_file;
-
-	struct archive		*a;
-	struct archive_entry	*entry;
-
-	xb_ad(ctxt->pipe_ctxt != NULL);
-	dest_ctxt = ctxt->pipe_ctxt;
-
-	archive_ctxt = (ds_archive_ctxt_t *) ctxt->ptr;
-
-	pthread_mutex_lock(&archive_ctxt->mutex);
-	if (archive_ctxt->dest_file == NULL) {
-		archive_ctxt->dest_file = ds_open(dest_ctxt, path, mystat);
-		if (archive_ctxt->dest_file == NULL) {
-			return NULL;
-		}
-	}
-	pthread_mutex_unlock(&archive_ctxt->mutex);
-
-	file = (ds_file_t *) my_malloc(sizeof(ds_file_t) +
-				       sizeof(ds_archive_file_t),
-				       MYF(MY_FAE));
-
-	archive_file = (ds_archive_file_t *) (file + 1);
-
-	a = archive_ctxt->archive;
-
-	entry = archive_entry_new();
-	if (entry == NULL) {
-		msg("archive_entry_new() failed.\n");
-		goto err;
-	}
-
-	archive_entry_set_size(entry, mystat->st_size);
-	archive_entry_set_mode(entry, 0660);
-	archive_entry_set_filetype(entry, AE_IFREG);
-	archive_entry_set_pathname(entry, path);
-	archive_entry_set_mtime(entry, mystat->st_mtime, 0);
-
-	archive_file->entry = entry;
-	archive_file->archive_ctxt = archive_ctxt;
-
-	if (archive_write_header(a, entry) != ARCHIVE_OK) {
-		msg("archive_write_header() failed.\n");
-		archive_entry_free(entry);
-		goto err;
-	}
-
-	file->ptr = archive_file;
-	file->path = archive_ctxt->dest_file->path;
-
-	return file;
-
-err:
-	if (archive_ctxt->dest_file) {
-		ds_close(archive_ctxt->dest_file);
-		archive_ctxt->dest_file = NULL;
-	}
-	my_free(file);
-
-	return NULL;
-}
-
-static
-int
-archive_write(ds_file_t *file, const void *buf, size_t len)
-{
-	ds_archive_file_t	*archive_file;
-	struct archive		*a;
-
-	archive_file = (ds_archive_file_t *) file->ptr;
-
-	a = archive_file->archive_ctxt->archive;
-
-	xb_ad(archive_file->archive_ctxt->dest_file != NULL);
-	if (archive_write_data(a, buf, len) < 0) {
-		msg("archive_write_data() failed: %s (errno = %d)\n",
-		    archive_error_string(a), archive_errno(a));
-		return 1;
-	}
-
-	return 0;
-}
-
-static
-int
-archive_close(ds_file_t *file)
-{
-	ds_archive_file_t	*archive_file;
-	int			rc = 0;
-
-	archive_file = (ds_archive_file_t *)file->ptr;
-
-	archive_entry_free(archive_file->entry);
-
-	my_free(file);
-
-	return rc;
-}
-
-static
-void
-archive_deinit(ds_ctxt_t *ctxt)
-{
-	struct archive *a;
-	ds_archive_ctxt_t	*archive_ctxt;
-
-	archive_ctxt = (ds_archive_ctxt_t *) ctxt->ptr;
-
-	a = archive_ctxt->archive;
-
-	if (archive_write_close(a) != ARCHIVE_OK) {
-		msg("archive_write_close() failed.\n");
-	}
-	archive_write_free(a);
-
-	if (archive_ctxt->dest_file) {
-		ds_close(archive_ctxt->dest_file);
-		archive_ctxt->dest_file = NULL;
-	}
-
-	pthread_mutex_destroy(&archive_ctxt->mutex);
-
-	my_free(ctxt);
-}

extra/mariabackup/ds_archive.h

-/******************************************************
-Copyright (c) 2013 Percona LLC and/or its affiliates.
-
-Streaming interface for XtraBackup.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; version 2 of the License.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1335  USA
-
-*******************************************************/
-
-#ifndef DS_ARCHIVE_H
-#define DS_ARCHIVE_H
-
-#include "datasink.h"
-
-extern datasink_t datasink_archive;
-
-#endif