4 files changed, 311 insertions, 0 deletions
diff --git a/target/imagebuilder/Config.in b/target/imagebuilder/Config.in
new file mode 100644
index 0000000..1bc4533
--- /dev/null
+++ b/target/imagebuilder/Config.in
@@ -0,0 +1,17 @@
+config IB
+	bool "Build the OpenWrt Image Builder"
+	depends on !PROFILE_KCONFIG
+	depends on !EXTERNAL_TOOLCHAIN
+	help
+	  This is essentially a stripped-down version of the buildroot
+	  with precompiled packages, kernel image and image building tools.
+	  You can use it to generate custom images without compiling anything
+
+config IB_STANDALONE
+	bool "Include package repositories"
+	default y
+	depends on IB
+	help
+	  Disabling this option will cause the ImageBuilder to embed only
+	  toolchain and kmod packages while all other ipk archives will be
+	  fetched from online repositories.
diff --git a/target/imagebuilder/Makefile b/target/imagebuilder/Makefile
new file mode 100644
index 0000000..7f48ed8
--- /dev/null
+++ b/target/imagebuilder/Makefile
@@ -0,0 +1,87 @@
+# 
+# Copyright (C) 2006-2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/kernel.mk
+include $(INCLUDE_DIR)/host.mk
+include $(INCLUDE_DIR)/version.mk
+include $(INCLUDE_DIR)/feeds.mk
+
+override MAKEFLAGS=
+
+IB_NAME:=OpenWrt-ImageBuilder-$(if $(CONFIG_VERSION_FILENAMES),$(VERSION_NUMBER)-)$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET)).$(HOST_OS)-$(HOST_ARCH)
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(IB_NAME)
+IB_KDIR:=$(patsubst $(TOPDIR)/%,$(PKG_BUILD_DIR)/%,$(KERNEL_BUILD_DIR))
+IB_LDIR:=$(patsubst $(TOPDIR)/%,$(PKG_BUILD_DIR)/%,$(LINUX_DIR))
+IB_DTSDIR:=$(patsubst $(TOPDIR)/%,$(PKG_BUILD_DIR)/%,$(LINUX_DIR))/arch/$(ARCH)/boot/dts/
+
+all: compile
+
+$(BIN_DIR)/$(IB_NAME).tar.bz2: clean
+	rm -rf $(PKG_BUILD_DIR)
+	mkdir -p $(IB_KDIR) $(IB_LDIR) $(PKG_BUILD_DIR)/staging_dir/host/lib \
+		$(PKG_BUILD_DIR)/target $(PKG_BUILD_DIR)/scripts $(IB_DTSDIR)
+	-cp $(TOPDIR)/.config $(PKG_BUILD_DIR)/.config
+	$(CP) \
+		$(INCLUDE_DIR) $(SCRIPT_DIR) \
+		$(TOPDIR)/rules.mk \
+		./files/Makefile \
+		./files/repositories.conf \
+		$(TMP_DIR)/.targetinfo \
+		$(TMP_DIR)/.packageinfo \
+		$(PKG_BUILD_DIR)/
+
+ifeq ($(CONFIG_IB_STANDALONE),)
+	echo '## Remote package repositories' >> $(PKG_BUILD_DIR)/repositories.conf
+	$(call FeedSourcesAppend,$(PKG_BUILD_DIR)/repositories.conf)
+endif
+
+	echo ''                                                        >> $(PKG_BUILD_DIR)/repositories.conf
+	echo '## This is the local package repository, do not remove!' >> $(PKG_BUILD_DIR)/repositories.conf
+	echo 'src imagebuilder file:packages'                          >> $(PKG_BUILD_DIR)/repositories.conf
+
+	$(VERSION_SED) $(PKG_BUILD_DIR)/repositories.conf
+
+ifeq ($(CONFIG_IB_STANDALONE),)
+	(cd $(PACKAGE_DIR); $(FIND) -type f -name 'libc_*.ipk' -or -name 'kernel_*.ipk' -or -name 'kmod-*.ipk') | \
+		while read path; do \
+			mkdir -p "$(PKG_BUILD_DIR)/packages/$${path%/*}"; \
+			cp "$(PACKAGE_DIR)/$$path" "$(PKG_BUILD_DIR)/packages/$$path"; \
+		done
+else
+	$(CP) $(PACKAGE_DIR) $(PKG_BUILD_DIR)/packages
+endif
+
+	$(CP) $(TOPDIR)/target/linux $(PKG_BUILD_DIR)/target/
+	if [ -d $(TOPDIR)/staging_dir/host/lib/grub ]; then \
+		$(CP) $(TOPDIR)/staging_dir/host/lib/grub/ $(PKG_BUILD_DIR)/staging_dir/host/lib; \
+	fi
+	rm -rf \
+		$(PKG_BUILD_DIR)/target/linux/*/files{,-*} \
+		$(PKG_BUILD_DIR)/target/linux/*/patches{,-*}
+	-cp $(KERNEL_BUILD_DIR)/* $(IB_KDIR)/ # don't copy subdirectories here
+	-cp $(LINUX_DIR)/.config $(IB_LDIR)/
+	-$(SCRIPT_DIR)/bundle-libraries.sh $(IB_LDIR)/scripts/dtc \
+	  $(LINUX_DIR)/scripts/dtc/dtc
+	if [ -d $(LINUX_DIR)/arch/$(ARCH)/boot/dts ]; then \
+		$(CP) $(LINUX_DIR)/arch/$(ARCH)/boot/dts/* $(IB_DTSDIR); \
+	fi
+	$(SED) 's,^# REVISION:=.*,REVISION:=$(REVISION),g' $(PKG_BUILD_DIR)/include/version.mk
+	find $(PKG_BUILD_DIR) -name CVS -o -name .git -o -name .svn \
+	  | $(XARGS) rm -rf
+	find $(STAGING_DIR_HOST)/bin -maxdepth 1 -type f -perm -u=x \
+	  | $(XARGS) $(SCRIPT_DIR)/bundle-libraries.sh $(PKG_BUILD_DIR)/staging_dir/host/bin/
+	STRIP=sstrip $(SCRIPT_DIR)/rstrip.sh $(PKG_BUILD_DIR)/staging_dir/host/bin/
+	$(TAR) -cf - -C $(BUILD_DIR) $(IB_NAME) | bzip2 -c > $@
+
+download:
+prepare:
+compile: $(BIN_DIR)/$(IB_NAME).tar.bz2
+install: compile
+
+clean: FORCE
+	rm -rf $(PKG_BUILD_DIR) $(BIN_DIR)/$(IB_NAME).tar.bz2
diff --git a/target/imagebuilder/files/Makefile b/target/imagebuilder/files/Makefile
new file mode 100644
index 0000000..f612ea9
--- /dev/null
+++ b/target/imagebuilder/files/Makefile
@@ -0,0 +1,203 @@
+# Makefile for OpenWrt
+#
+# Copyright (C) 2007-2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+TOPDIR:=${CURDIR}
+LC_ALL:=C
+LANG:=C
+export TOPDIR LC_ALL LANG
+export OPENWRT_VERBOSE=s
+all: help
+
+include $(TOPDIR)/include/host.mk
+
+ifneq ($(OPENWRT_BUILD),1)
+  override OPENWRT_BUILD=1
+  export OPENWRT_BUILD
+endif
+
+include rules.mk
+include $(INCLUDE_DIR)/debug.mk
+include $(INCLUDE_DIR)/depends.mk
+
+include $(INCLUDE_DIR)/version.mk
+export REVISION
+
+define Helptext
+Available Commands:
+	help:	This help text
+	info:	Show a list of available target profiles
+	clean:	Remove images and temporary build files
+	image:	Build an image (see below for more information).
+
+Building images:
+	By default 'make image' will create an image with the default
+	target profile and package set. You can use the following parameters
+	to change that:
+
+	make image PROFILE="<profilename>" # override the default target profile
+	make image PACKAGES="<pkg1> [<pkg2> [<pkg3> ...]]" # include extra packages
+	make image FILES="<path>" # include extra files from <path>
+	make image BIN_DIR="<path>" # alternative output directory for the images
+
+endef
+$(eval $(call shexport,Helptext))
+
+help: FORCE
+	echo "$$$(call shvar,Helptext)"
+
+
+# override variables from rules.mk
+PACKAGE_DIR:=$(TOPDIR)/packages
+LISTS_DIR:=$(subst $(space),/,$(patsubst %,..,$(subst /,$(space),$(TARGET_DIR))))$(DL_DIR)
+OPKG:= \
+  IPKG_NO_SCRIPT=1 \
+  IPKG_TMP="$(TMP_DIR)/ipkgtmp" \
+  IPKG_INSTROOT="$(TARGET_DIR)" \
+  IPKG_CONF_DIR="$(TMP_DIR)" \
+  IPKG_OFFLINE_ROOT="$(TARGET_DIR)" \
+  $(STAGING_DIR_HOST)/bin/opkg \
+	-f $(TOPDIR)/repositories.conf \
+	--force-depends \
+	--force-overwrite \
+	--force-postinstall \
+	--cache $(DL_DIR) \
+	--lists-dir $(LISTS_DIR) \
+	--offline-root $(TARGET_DIR) \
+	--add-dest root:/ \
+	--add-arch all:100 \
+	--add-arch $(ARCH_PACKAGES):200
+
+define Profile
+  $(eval $(call Profile/Default))
+  $(eval $(call Profile/$(1)))
+  ifeq ($(USER_PROFILE),)
+    USER_PROFILE:=$(1)
+  endif
+  $(1)_NAME:=$(NAME)
+  $(1)_PACKAGES:=$(PACKAGES)
+  PROFILE_NAMES += $(1)
+  PROFILE_LIST += \
+  	echo '$(1):'; [ -z '$(NAME)' ] || echo '	$(NAME)'; echo '	Packages: $(PACKAGES)';
+endef
+
+include $(INCLUDE_DIR)/target.mk
+
+staging_dir/host/.prereq-build: include/prereq-build.mk
+	mkdir -p tmp
+	rm -f tmp/.host.mk
+	@$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f $(TOPDIR)/include/prereq-build.mk prereq 2>/dev/null || { \
+		echo "Prerequisite check failed. Use FORCE=1 to override."; \
+		false; \
+	}
+  ifneq ($(realpath $(TOPDIR)/include/prepare.mk),)
+	@$(_SINGLE)$(NO_TRACE_MAKE) -j1 -r -s -f $(TOPDIR)/include/prepare.mk prepare 2>/dev/null || { \
+		echo "Preparation failed."; \
+		false; \
+	}
+  endif
+	touch $@
+
+_call_info: FORCE
+	echo 'Current Target: "$(BOARD)$(if $(SUBTARGET), ($(BOARDNAME)))"'
+	echo 'Default Packages: $(DEFAULT_PACKAGES)'
+	echo 'Available Profiles:'
+	echo; $(PROFILE_LIST)
+
+BUILD_PACKAGES:=$(sort $(DEFAULT_PACKAGES) $(USER_PACKAGES) $($(USER_PROFILE)_PACKAGES) kernel)
+# "-pkgname" in the package list means remove "pkgname" from the package list
+BUILD_PACKAGES:=$(filter-out $(filter -%,$(BUILD_PACKAGES)) $(patsubst -%,%,$(filter -%,$(BUILD_PACKAGES))),$(BUILD_PACKAGES))
+PACKAGES:=
+
+_call_image: staging_dir/host/.prereq-build
+	echo 'Building images for $(BOARD)$(if $($(USER_PROFILE)_NAME), - $($(USER_PROFILE)_NAME))'
+	echo 'Packages: $(BUILD_PACKAGES)'
+	echo
+	rm -rf $(TARGET_DIR)
+	mkdir -p $(TARGET_DIR) $(BIN_DIR) $(TMP_DIR) $(DL_DIR)
+	if [ ! -f "$(PACKAGE_DIR)/Packages" ] || [ ! -f "$(PACKAGE_DIR)/Packages.gz" ] || [ "`find $(PACKAGE_DIR) -cnewer $(PACKAGE_DIR)/Packages.gz`" ]; then \
+		echo "Package list missing or not up-to-date, generating it.";\
+		$(MAKE) package_index; \
+	else \
+		mkdir -p $(TARGET_DIR)/tmp; \
+		$(OPKG) update || true; \
+	fi
+	$(MAKE) package_install
+ifneq ($(USER_FILES),)
+	$(MAKE) copy_files
+endif
+	$(MAKE) package_postinst
+	$(MAKE) build_image
+
+package_index: FORCE
+	@echo
+	@echo Building package index...
+	@mkdir -p $(TMP_DIR) $(TARGET_DIR)/tmp
+	(cd $(PACKAGE_DIR); $(SCRIPT_DIR)/ipkg-make-index.sh . > Packages && \
+		gzip -9nc Packages > Packages.gz \
+	) >/dev/null 2>/dev/null
+	$(OPKG) update || true
+
+package_install: FORCE
+	@echo
+	@echo Installing packages...
+	$(OPKG) install $(firstword $(wildcard $(PACKAGE_DIR)/libc_*.ipk $(PACKAGE_DIR)/base/libc_*.ipk))
+	$(OPKG) install $(firstword $(wildcard $(PACKAGE_DIR)/kernel_*.ipk $(PACKAGE_DIR)/base/kernel_*.ipk))
+	$(OPKG) install $(BUILD_PACKAGES)
+	rm -f $(TARGET_DIR)/usr/lib/opkg/lists/*
+
+copy_files: FORCE
+	@echo
+	@echo Copying extra files
+	@$(call file_copy,$(USER_FILES)/*,$(TARGET_DIR)/)
+
+package_postinst: FORCE
+	@echo
+	@echo Cleaning up
+	@rm -f $(TARGET_DIR)/tmp/opkg.lock
+	@echo
+	@echo Activating init scripts
+	@mkdir -p $(TARGET_DIR)/etc/rc.d
+	@( \
+		cd $(TARGET_DIR); \
+		for script in ./usr/lib/opkg/info/*.postinst; do \
+			IPKG_INSTROOT=$(TARGET_DIR) $$(which bash) $$script; \
+		done || true \
+	)
+	rm -f $(TARGET_DIR)/usr/lib/opkg/info/*.postinst
+	$(if $(CONFIG_CLEAN_IPKG),rm -rf $(TARGET_DIR)/usr/lib/opkg)
+
+build_image: FORCE
+	@echo
+	@echo Building images...
+	$(NO_TRACE_MAKE) -C target/linux/$(BOARD)/image install TARGET_BUILD=1 IB=1 \
+		$(if $(USER_PROFILE),PROFILE="$(USER_PROFILE)")
+
+clean:
+	rm -rf $(TMP_DIR) $(DL_DIR) $(TARGET_DIR) $(BIN_DIR)
+
+
+info:
+	(unset PROFILE FILES PACKAGES MAKEFLAGS; $(MAKE) -s _call_info)
+
+image:
+ifneq ($(PROFILE),)
+  ifeq ($(filter $(PROFILE),$(PROFILE_NAMES)),)
+	@echo 'Profile "$(PROFILE)" does not exist!'
+	@echo 'Use "make info" to get a list of available profile names.'
+	@exit 1
+  endif
+endif
+	(unset PROFILE FILES PACKAGES MAKEFLAGS; \
+	$(MAKE) _call_image \
+		$(if $(PROFILE),USER_PROFILE="$(PROFILE)") \
+		$(if $(FILES),USER_FILES="$(FILES)") \
+		$(if $(PACKAGES),USER_PACKAGES="$(PACKAGES)") \
+		$(if $(BIN_DIR),BIN_DIR="$(BIN_DIR)"))
+
+.SILENT: help info image
+
diff --git a/target/imagebuilder/files/repositories.conf b/target/imagebuilder/files/repositories.conf
new file mode 100644
index 0000000..8f1f27f
--- /dev/null
+++ b/target/imagebuilder/files/repositories.conf
@@ -0,0 +1,4 @@
+## Place your custom repositories here, they must match the architecture and version.
+# src/gz %n %U
+# src custom file:///usr/src/openwrt/bin/%T/packages
+