include/unpack.mk

   1 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
   2
   3 # unpacking files with +s may break on some platforms. this typically emits error code 2
   4 ifneq ($(HOST_OS),Linux)
   5   HOST_TAR:=trapret 2 $(TAR)
   6 else
   7   HOST_TAR:=$(TAR)
   8 endif
   9 TAR_CMD:=$(HOST_TAR) -C $(PKG_BUILD_DIR)/.. $(TAR_OPTIONS)
  10 UNZIP_CMD:=unzip -d $(PKG_BUILD_DIR)/.. $(DL_DIR)/$(PKG_SOURCE)
  11
  12 ifeq ($(PKG_SOURCE),)
  13   PKG_UNPACK ?= true
  14 endif
  15 ifeq ($(strip $(PKG_UNPACK)),)
  16   ifeq ($(strip $(PKG_CAT)),)
  17     # try to autodetect file type
  18     EXT:=$(call ext,$(PKG_SOURCE))
  19     EXT1:=$(EXT)
  20
  21     ifeq ($(filter gz tgz,$(EXT)),$(EXT))
  22       EXT:=$(call ext,$(PKG_SOURCE:.$(EXT)=))
  23       UNPACK:=gzip -dc $(DL_DIR)/$(PKG_SOURCE) |
  24     endif
  25     ifeq ($(filter bzip2 bz2 bz tbz2 tbz,$(EXT)),$(EXT))
  26       EXT:=$(call ext,$(PKG_SOURCE:.$(EXT)=))
  27       UNPACK:=bzcat $(DL_DIR)/$(PKG_SOURCE) |
  28     endif
  29     ifeq ($(filter tgz tbz tbz2,$(EXT1)),$(EXT1))
  30       EXT:=tar
  31     endif
  32     UNPACK ?= cat $(DL_DIR)/$(PKG_SOURCE) |
  33     ifeq ($(EXT),tar)
  34       PKG_UNPACK:=$(UNPACK) $(TAR_CMD)
  35     endif
  36     ifeq ($(EXT),cpio)
  37       PKG_UNPACK:=$(UNPACK) (cd $(PKG_BUILD_DIR)/..; cpio -i -d)
  38     endif
  39     ifeq ($(EXT),zip)
  40       PKG_UNPACK:=$(UNZIP_CMD)
  41     endif
  42   endif
  43
  44   # compatibility code for packages that set PKG_CAT
  45   ifeq ($(strip $(PKG_UNPACK)),)
  46     # use existing PKG_CAT
  47     PKG_UNPACK:=$(PKG_CAT) $(DL_DIR)/$(PKG_SOURCE) | $(TAR_CMD)
  48     ifeq ($(PKG_CAT),unzip)
  49       PKG_UNPACK:=$(UNZIP_CMD)
  50     endif
  51     # replace zcat with $(ZCAT), because some system don't support it properly
  52     ifeq ($(PKG_CAT),zcat)
  53       PKG_UNPACK:=gzip -dc $(DL_DIR)/$(PKG_SOURCE) | $(TAR_CMD)
  54     endif
  55   endif
  56   ifneq ($(strip $(CRLF_WORKAROUND)),)
  57     PKG_UNPACK += && find $(PKG_BUILD_DIR) -type f -print0 | xargs -0 perl -pi -e 's!\r$$$$!!g'
  58   endif
  59 endif