X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/0c97f1fe58f63b522438b1e6ea1dbe3cf329a763..89e23832fbb9c08f07abe1716b3772dd8839f904:/include/unpack.mk

diff --git a/include/unpack.mk b/include/unpack.mk
index 7813e3b3d..2d3586309 100644
--- a/include/unpack.mk
+++ b/include/unpack.mk
@@ -1,23 +1,81 @@
-ifeq ($(strip $(PKG_UNPACK)),)
-  ifneq ($(HOST_OS),Linux)
-	HOST_TAR:=trapret 2 $(TAR)
-  else
-    HOST_TAR:=$(TAR)
+# 
+# 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)
+  HOST_TAR:=trapret 2 $(TAR)
+else
+  HOST_TAR:=$(TAR)
+endif
+TAR_CMD=$(HOST_TAR) -C $(1)/.. $(TAR_OPTIONS)
+UNZIP_CMD=unzip -d $(1)/.. $(DL_DIR)/$(PKG_SOURCE)
+
+ifeq ($(PKG_SOURCE),)
+  PKG_UNPACK ?= true
+else
+
+ifeq ($(strip $(UNPACK_CMD)),)
+  ifeq ($(strip $(PKG_CAT)),)
+    # try to autodetect file type
+    EXT:=$(call ext,$(PKG_SOURCE))
+    EXT1:=$(EXT)
+
+    ifeq ($(filter gz tgz,$(EXT)),$(EXT))
+      EXT:=$(call ext,$(PKG_SOURCE:.$(EXT)=))
+      DECOMPRESS_CMD:=gzip -dc $(DL_DIR)/$(PKG_SOURCE) |
+    endif
+    ifeq ($(filter bzip2 bz2 bz tbz2 tbz,$(EXT)),$(EXT))
+      EXT:=$(call ext,$(PKG_SOURCE:.$(EXT)=))
+      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
+    ifeq ($(filter tgz tbz tbz2 txz,$(EXT1)),$(EXT1))
+      EXT:=tar
+    endif
+    DECOMPRESS_CMD ?= cat $(DL_DIR)/$(PKG_SOURCE) |
+    ifeq ($(EXT),tar)
+      UNPACK_CMD=$(DECOMPRESS_CMD) $(TAR_CMD)
+    endif
+    ifeq ($(EXT),cpio)
+      UNPACK_CMD=$(DECOMPRESS_CMD) (cd $(1)/..; cpio -i -d)
+    endif
+    ifeq ($(EXT),zip)
+      UNPACK_CMD=$(UNZIP_CMD)
+    endif
   endif
-  ifneq ($(strip $(PKG_CAT)),)
+
+  # compatibility code for packages that set PKG_CAT
+  ifeq ($(strip $(UNPACK_CMD)),)
     # use existing PKG_CAT
-    PKG_UNPACK:=$(PKG_CAT) $(DL_DIR)/$(PKG_SOURCE) | $(HOST_TAR) -C $(PKG_BUILD_DIR)/.. $(TAR_OPTIONS)
+    UNPACK_CMD=$(PKG_CAT) $(DL_DIR)/$(PKG_SOURCE) | $(TAR_CMD)
     ifeq ($(PKG_CAT),unzip)
-      PKG_UNPACK:=unzip -d $(PKG_BUILD_DIR)/.. $(DL_DIR)/$(PKG_SOURCE)
+      UNPACK_CMD=$(UNZIP_CMD)
     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)
-      PKG_UNPACK:=$(ZCAT) $(DL_DIR)/$(PKG_SOURCE) | $(HOST_TAR) -C $(PKG_BUILD_DIR)/.. $(TAR_OPTIONS)
+      UNPACK_CMD=gzip -dc $(DL_DIR)/$(PKG_SOURCE) | $(TAR_CMD)
     endif
-  else
-    # try to autodetect file type
   endif
   ifneq ($(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
+
+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
+