Add --swap-file-path and --swap-file-size options (Closes: #629637).

functions/defaults.sh

@@ -1044,6 +1044,9 @@ Set_defaults ()
 			;;
 	esac
 
+	# Setting swap file
+	LB_SWAP_FILE_SIZE="${LB_SWAP_FILE_SIZE:-512}"
+
 	## config/source
 
 	# Setting source option

manpages/en/lb_config.1

@@ -460,6 +460,10 @@ defines if the security repositories specified in the security mirror options sh
 defines if a corresponding source image to the binary image should be build. By default this is false because most people do not require this and would require to download quite a few source packages. However, once you start distributing your live image, you should make sure you build it with a source image alongside.
 .IP "\-s|\fB\-\-source\-images\fR iso|net|tar|usb\-hdd" 4
 defines the image type for the source image. Default is tar.
+.IP "\fB\-\-swap\-file\-path\fR \fIPATH\fR" 4
+defines the path to a swap file to create in the binary image. Default is not to create a swap file.
+.IP "\fB\-\-swap\-file\-size\fR \fIMB\fR" 4
+defines what size in megabytes the swap file should be, if one is to be created. Default is 512MB.
 .IP "\fB\-\-syslinux\-splash\fR \fIFILE\fR" 4
 defines the file of the syslinux splash graphic that should be used instead of the default one.
 .IP "\fB\-\-syslinux\-timeout\fR \fISECONDS\fR" 4

scripts/build/lb_chroot_hacks

@@ -273,6 +273,11 @@ then
 	ln -s /proc/mounts chroot/etc/mtab
 fi
 
+if [ "${LB_SWAP_FILE_PATH}" ]; then
+	dd if=/dev/zero of="chroot/${LB_SWAP_FILE_PATH}" bs=1024k count="${LB_SWAP_FILE_SIZE}"
+	mkswap "chroot/${LB_SWAP_FILE_PATH}"
+fi
+
 # Show popular warnings
 if [ -e chroot/etc/init.d/resolvconf ]
 then

scripts/build/lb_config

@@ -131,6 +131,8 @@ USAGE="${PROGRAM}   [--apt apt|aptitude]\n\
 \t    [--security true|false]\n\
 \t    [--source true|false]\n\
 \t    [-s|--source-images iso|net|tar|usb-hdd]\n\
+\t    [--swap-file-path PATH]\n\
+\t    [--swap-file-size MB]\n\
 \t    [--syslinux-theme THEME_SUFFIX]\n\
 \t    [--tasksel apt|aptitude|tasksel]\n\
 \t    [--tasks TASK|\"TASKS\"]\n\
@@ -162,7 +164,7 @@ Local_arguments ()
 		grub-splash:,hostname:,isohybrid-options:,iso-application:,iso-preparer:,iso-publisher:,
 		iso-volume:,jffs2-eraseblock:,memtest:,net-root-filesystem:,net-root-mountoptions:,
 		net-root-path:,net-root-server:,net-cow-filesystem:,net-cow-mountoptions:,net-cow-path:,
-		net-cow-server:,net-tarball:,syslinux-theme:,
+		net-cow-server:,net-tarball:,swap-file-path:,swap-file-size:,syslinux-theme:,
 		username:,win32-loader:,source:,source-images:,breakpoints,conffile:,debug,force,
 		help,ignore-system-defaults,quiet,usage,verbose,version"
 	# Remove spaces added by indentation
@@ -730,6 +732,16 @@ Local_arguments ()
 				shift 2
 				;;
 
+			--swap-file-path)
+				LB_SWAP_FILE_PATH="${2}"
+				shift 2
+				;;
+
+			--swap-file-size)
+				LB_SWAP_FILE_SIZE="${2}"
+				shift 2
+				;;
+
 			--syslinux-theme)
 				LB_SYSLINUX_THEME="${2}"
 				shift 2
@@ -1336,6 +1348,14 @@ LB_NET_COW_SERVER="${LB_NET_COW_SERVER}"
 # (Default: ${LB_NET_TARBALL})
 LB_NET_TARBALL="${LB_NET_TARBALL}"
 
+# \$LB_SWAP_FILE_PATH: set swap file path
+# (Default: ${LB_SWAP_FILE_PATH})
+LB_SWAP_FILE_PATH="${LB_SWAP_FILE_PATH}"
+
+# \$LB_SWAP_FILE_SIZE: set swap file size
+# (Default: ${LB_SWAP_FILE_SIZE})
+LB_SWAP_FILE_SIZE="${LB_SWAP_FILE_SIZE}"
+
 # \$LB_SYSLINUX_THEME: set syslinux theme package
 # (Default: ${LB_SYSLINUX_THEME})
 LB_SYSLINUX_THEME="${LB_SYSLINUX_THEME}"