kernel: backport overlayfs v11 to 3.0 and 2.6.39

[openwrt.git] / include / unpack.mk

diff --git a/include/unpack.mk b/include/unpack.mk
index 10e6c25..2d35863 100644 (file)
--- a/include/unpack.mk
+++ b/include/unpack.mk
@@ -1,4 +1,9 @@
-ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
+# 
+# Copyright (C) 2006-2007 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#

 
 # unpacking files with +s may break on some platforms. this typically emits error code 2
 ifneq ($(HOST_OS),Linux)
 
 # unpacking files with +s may break on some platforms. this typically emits error code 2
 ifneq ($(HOST_OS),Linux)


@@ -6,13 +11,14 @@ ifneq ($(HOST_OS),Linux)
 else
   HOST_TAR:=$(TAR)
 endif
 else
   HOST_TAR:=$(TAR)
 endif

-TAR_CMD:=$(HOST_TAR) -C $(PKG_BUILD_DIR)/.. $(TAR_OPTIONS)
-UNZIP_CMD:=unzip -d $(PKG_BUILD_DIR)/.. $(DL_DIR)/$(PKG_SOURCE)
+TAR_CMD=$(HOST_TAR) -C $(1)/.. $(TAR_OPTIONS)
+UNZIP_CMD=unzip -d $(1)/.. $(DL_DIR)/$(PKG_SOURCE)

 
 ifeq ($(PKG_SOURCE),)
   PKG_UNPACK ?= true
 
 ifeq ($(PKG_SOURCE),)
   PKG_UNPACK ?= true

-endif
-ifeq ($(strip $(PKG_UNPACK)),)
+else
+
+ifeq ($(strip $(UNPACK_CMD)),)

   ifeq ($(strip $(PKG_CAT)),)
     # try to autodetect file type
     EXT:=$(call ext,$(PKG_SOURCE))
   ifeq ($(strip $(PKG_CAT)),)
     # try to autodetect file type
     EXT:=$(call ext,$(PKG_SOURCE))


@@ -20,41 +26,56 @@ ifeq ($(strip $(PKG_UNPACK)),)
 
     ifeq ($(filter gz tgz,$(EXT)),$(EXT))
       EXT:=$(call ext,$(PKG_SOURCE:.$(EXT)=))
 
     ifeq ($(filter gz tgz,$(EXT)),$(EXT))
       EXT:=$(call ext,$(PKG_SOURCE:.$(EXT)=))

-      UNPACK:=$(ZCAT) $(DL_DIR)/$(PKG_SOURCE) |
-    endif      
+      DECOMPRESS_CMD:=gzip -dc $(DL_DIR)/$(PKG_SOURCE) |
+    endif

     ifeq ($(filter bzip2 bz2 bz tbz2 tbz,$(EXT)),$(EXT))
       EXT:=$(call ext,$(PKG_SOURCE:.$(EXT)=))
     ifeq ($(filter bzip2 bz2 bz tbz2 tbz,$(EXT)),$(EXT))
       EXT:=$(call ext,$(PKG_SOURCE:.$(EXT)=))

-      UNPACK:=bzcat $(DL_DIR)/$(PKG_SOURCE) |
+      DECOMPRESS_CMD:=bzcat $(DL_DIR)/$(PKG_SOURCE) |
+    endif
+    ifeq ($(filter xz txz,$(EXT)),$(EXT))
+      EXT:=$(call ext,$(PKG_SOURCE:.$(EXT)=))
+      DECOMPRESS_CMD:=xzcat $(DL_DIR)/$(PKG_SOURCE) |

     endif
     endif

-    ifeq ($(filter tgz tbz tbz2,$(EXT1)),$(EXT1))
-      $(error FOO: $(filter tgz tbz tbz2,$(EXT1)),$(EXT1))
+    ifeq ($(filter tgz tbz tbz2 txz,$(EXT1)),$(EXT1))

       EXT:=tar
     endif
       EXT:=tar
     endif

-    UNPACK ?= cat $(DL_DIR)/$(PKG_SOURCE) |
+    DECOMPRESS_CMD ?= cat $(DL_DIR)/$(PKG_SOURCE) |

     ifeq ($(EXT),tar)
     ifeq ($(EXT),tar)

-      PKG_UNPACK:=$(UNPACK) $(TAR_CMD)
+      UNPACK_CMD=$(DECOMPRESS_CMD) $(TAR_CMD)

     endif
     ifeq ($(EXT),cpio)
     endif
     ifeq ($(EXT),cpio)

-      PKG_UNPACK:=$(UNPACK) (cd $(PKG_BUILD_DIR)/..; cpio -i -d)
+      UNPACK_CMD=$(DECOMPRESS_CMD) (cd $(1)/..; cpio -i -d)

     endif
     ifeq ($(EXT),zip)
     endif
     ifeq ($(EXT),zip)

-      PKG_UNPACK:=$(UNZIP_CMD)
+      UNPACK_CMD=$(UNZIP_CMD)

     endif
   endif
     endif
   endif

- 
+

   # compatibility code for packages that set PKG_CAT
   # compatibility code for packages that set PKG_CAT

-  ifeq ($(strip $(PKG_CAT)$(PKG_UNPACK)),)
+  ifeq ($(strip $(UNPACK_CMD)),)

     # use existing PKG_CAT
     # use existing PKG_CAT

-    PKG_UNPACK:=$(PKG_CAT) $(DL_DIR)/$(PKG_SOURCE) | $(TAR_CMD)
+    UNPACK_CMD=$(PKG_CAT) $(DL_DIR)/$(PKG_SOURCE) | $(TAR_CMD)

     ifeq ($(PKG_CAT),unzip)
     ifeq ($(PKG_CAT),unzip)

-      PKG_UNPACK:=$(UNZIP_CMD)
+      UNPACK_CMD=$(UNZIP_CMD)

     endif
     endif

-    # replace zcat with $(ZCAT), because some system have it as gzcat
+    # replace zcat with $(ZCAT), because some system don't support it properly

     ifeq ($(PKG_CAT),zcat)
     ifeq ($(PKG_CAT),zcat)

-      PKG_UNPACK:=$(ZCAT) $(DL_DIR)/$(PKG_SOURCE) | $(TAR_CMD)
+      UNPACK_CMD=gzip -dc $(DL_DIR)/$(PKG_SOURCE) | $(TAR_CMD)

     endif
   endif
   ifneq ($(strip $(CRLF_WORKAROUND)),)
     endif
   endif
   ifneq ($(strip $(CRLF_WORKAROUND)),)

-    PKG_UNPACK += && find $(PKG_BUILD_DIR) -type f -print0 | xargs -0 perl -pi -e 's!\r$$$$!!g'
+    CRLF_CMD := && find $(PKG_BUILD_DIR) -type f -print0 | xargs -0 perl -pi -e 's!\r$$$$!!g'
+  else
+    CRLF_CMD :=

   endif
 endif
   endif
 endif

+
+ifdef PKG_BUILD_DIR
+  PKG_UNPACK ?= $(SH_FUNC) $(call UNPACK_CMD,$(PKG_BUILD_DIR)) $(call CRLF_CMD,$(PKG_BUILD_DIR))
+endif
+ifdef HOST_BUILD_DIR
+  HOST_UNPACK ?= $(SH_FUNC) $(call UNPACK_CMD,$(HOST_BUILD_DIR)) $(call CRLF_CMD,$(HOST_BUILD_DIR))
+endif
+
+endif # PKG_SOURCE
+