Prototype disk space checking functionality

Very basic prototyping for adding functionality to check free disk
space before performing package installs.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>

4 files changed, 66 insertions, 0 deletions

diff --git a/lib/libalpm/Makefile.am b/lib/libalpm/Makefile.am
index bac30389..da663cb5 100644
--- a/lib/libalpm/Makefile.am
+++ b/lib/libalpm/Makefile.am
@@ -32,6 +32,7 @@ libalpm_la_SOURCES = \
 	db.h db.c \
 	delta.h delta.c \
 	deps.h deps.c \
+	diskspace.h diskspace.c \
 	dload.h dload.c \
 	error.c \
 	graph.h \
diff --git a/lib/libalpm/diskspace.c b/lib/libalpm/diskspace.c
new file mode 100644
index 00000000..31a2760d
--- /dev/null
+++ b/lib/libalpm/diskspace.c
@@ -0,0 +1,28 @@
+/*
+ *  diskspace.c
+ *
+ *  Copyright (c) 2010 Pacman Development Team <pacman-dev@archlinux.org>
+ *
+ *  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; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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, see <http://www.gnu.org/licenses/>.
+ */
+
+/* libalpm */
+#include "diskspace.h"
+
+int _alpm_check_diskspace(pmtrans_t *trans, pmdb_t *db)
+{
+	return 0;
+}
+
+/* vim: set ts=2 sw=2 noet: */
diff --git a/lib/libalpm/diskspace.h b/lib/libalpm/diskspace.h
new file mode 100644
index 00000000..69e39d8e
--- /dev/null
+++ b/lib/libalpm/diskspace.h
@@ -0,0 +1,29 @@
+/*
+ *  diskspace.h
+ *
+ *  Copyright (c) 2010 Pacman Development Team <pacman-dev@archlinux.org>
+ *
+ *  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; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _ALPM_DISKSPACE_H
+#define _ALPM_DISKSPACE_H
+
+#include "alpm.h"
+
+int _alpm_check_diskspace(pmtrans_t *trans, pmdb_t *db);
+
+#endif /* _ALPM_DISKSPACE_H */
+
+/* vim: set ts=2 sw=2 noet: */
diff --git a/lib/libalpm/sync.c b/lib/libalpm/sync.c
index 2f307750..23476b8d 100644
--- a/lib/libalpm/sync.c
+++ b/lib/libalpm/sync.c
@@ -48,6 +48,7 @@
 #include "dload.h"
 #include "delta.h"
 #include "remove.h"
+#include "diskspace.h"
 
 /** Check for new version of pkg in sync repos
  * (only the first occurrence is considered in sync)
@@ -996,6 +997,13 @@ int _alpm_sync_commit(pmtrans_t *trans, pmdb_t *db_local, alpm_list_t **data)
 		EVENT(trans, PM_TRANS_EVT_FILECONFLICTS_DONE, NULL, NULL);
 	}
 
+	/* check available disk space */
+	_alpm_log(PM_LOG_DEBUG, "checking available disk space\n");
+	if(_alpm_check_diskspace(trans, handle->db_local) == -1) {
+		_alpm_log(PM_LOG_ERROR, _("not enough free disk space\n"));
+		goto error;
+	}
+
 	/* remove conflicting and to-be-replaced packages */
 	if(replaces) {
 		_alpm_log(PM_LOG_DEBUG, "removing conflicting and to-be-replaced packages\n");