nodejs: new package

Based off of patches posted by (and Signed-off-by:) Jonathan Liu <net147@gmail.com>

[Peter: fix Config.in whitespace]
Signed-off-by: Daniel Price <daniel.price@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/Config.in

@@ -311,6 +311,7 @@ source "package/wsapi/Config.in"
 source "package/xavante/Config.in"
 endmenu
 endif
+source "package/nodejs/Config.in"
 source "package/perl/Config.in"
 if BR2_PACKAGE_PERL
 menu "Perl libraries/modules"

package/nodejs/Config.in

@@ -0,0 +1,79 @@
+config BR2_PACKAGE_NODEJS
+	bool "nodejs"
+	depends on BR2_INET_IPV6
+	depends on BR2_LARGEFILE
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_arm || BR2_i386 || BR2_x86_64
+	# uses fork()
+	depends on BR2_USE_MMU
+	help
+	  Event-driven I/O server-side JavaScript environment based on V8.
+
+	  http://nodejs.org/
+
+comment "nodejs requires a toolchain with C++, IPv6, large files, and threading"
+	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_LARGEFILE || \
+		!BR2_TOOLCHAIN_HAS_THREADS || !BR2_INET_IPV6
+
+if BR2_PACKAGE_NODEJS
+
+menu "Module Selection"
+
+config BR2_PACKAGE_NODEJS_NPM
+	bool "NPM for the target"
+	select BR2_PACKAGE_OPENSSL
+	help
+	  NPM is the package manager for the Node JavaScript platform.
+	  Note that enabling NPM on the target also selects OpenSSL for the
+	  target.
+
+	  http://www.npmjs.org
+
+	  Note that NPM is always built for the buildroot host.
+
+config BR2_PACKAGE_NODEJS_MODULES_EXPRESS
+	bool "Express web application framework"
+	help
+	  Express is a minimal and flexible node.js web application
+	  framework, providing a robust set of features for building
+	  single and multi-page, and hybrid web applications.
+
+	  http://www.expressjs.com
+	  https://github.com/visionmedia/express
+
+config BR2_PACKAGE_NODEJS_MODULES_COFFEESCRIPT
+	bool "CoffeeScript"
+	help
+	  CoffeeScript is a little language that compiles into JavaScript.
+
+	  http://www.coffeescript.org
+
+config BR2_PACKAGE_NODEJS_MODULES_ADDITIONAL
+	string "Additional modules"
+	help
+	  List of space-separated nodejs modules to install via npm.
+	  See https://npmjs.org/ to find modules and 'npm help install'
+	  for available installation methods.  For repeatable builds,
+	  download and save tgz files or clone git repos for the
+	  components you care about.
+
+	  Example: serialport uglify-js@1.3.4 /my/module/mymodule.tgz git://github.com/someuser/somemodule.git#v1.2
+
+	  This would install the serialport module (at the newest version),
+	  the uglify-js module at 1.3.4, a module from a filesystem path,
+	  and a module from a git repository.
+
+config BR2_PACKAGE_NODEJS_MODULES_ADDITIONAL_DEPS
+	string "Additional module dependencies"
+	help
+	  List of space-separated buildroot recipes which must be built before
+	  your npms can be installed.  For example, if in 'Additional modules'
+	  you specified 'node-curl' (see:
+	  https://github.com/jiangmiao/node-curl), you could then specify
+	  'libcurl' here, to ensure that buildroot builds the libcurl package,
+	  and does so before building your node modules.
+
+endmenu
+
+endif

package/nodejs/nodejs-remove-python-bz2-dependency.patch

@@ -0,0 +1,27 @@
+Remove dependency on Python bz2 module
+
+The Python bz2 module is only needed in certain cases, so only import
+it when needed. In the normal nodejs build, this allows to remove the
+dependency on this module.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Index: b/deps/v8/tools/js2c.py
+===================================================================
+--- a/deps/v8/tools/js2c.py
++++ b/deps/v8/tools/js2c.py
+@@ -33,7 +33,6 @@
+ 
+ import os, re, sys, string
+ import jsmin
+-import bz2
+ 
+ 
+ def ToCAsciiArray(lines):
+@@ -344,6 +343,7 @@
+   else:
+     raw_sources_declaration = RAW_SOURCES_COMPRESSION_DECLARATION
+     if env['COMPRESSION'] == 'bz2':
++      import bz2
+       all_sources = bz2.compress("".join(all_sources))
+     total_length = len(all_sources)
+     sources_data = ToCArray(all_sources)

package/nodejs/nodejs-v8-gregs-fix.patch

@@ -0,0 +1,29 @@
+Fix compilation for ARM/uClibc
+Patch from Remi Duraffort <remi.duraffort@st.com>, taken from
+https://code.google.com/p/v8/source/detail?r=12094
+
+Signed-off-by: Daniel Price <daniel.price@gmail.com>
+
+--- a/deps/v8/src/platform-linux.cc
++++ b/deps/v8/src/platform-linux.cc
+@@ -1025,7 +1025,8 @@ static void ProfilerSignalHandler(int signal, siginfo_t* info, void* context) {
+   sample->fp = reinterpret_cast<Address>(mcontext.gregs[REG_RBP]);
+ #elif V8_HOST_ARCH_ARM
+ // An undefined macro evaluates to 0, so this applies to Android's Bionic also.
+-#if (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3))
++#if (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3) && \
++     !defined(__UCLIBC__))
+   sample->pc = reinterpret_cast<Address>(mcontext.gregs[R15]);
+   sample->sp = reinterpret_cast<Address>(mcontext.gregs[R13]);
+   sample->fp = reinterpret_cast<Address>(mcontext.gregs[R11]);
+@@ -1033,7 +1034,8 @@ static void ProfilerSignalHandler(int signal, siginfo_t* info, void* context) {
+   sample->pc = reinterpret_cast<Address>(mcontext.arm_pc);
+   sample->sp = reinterpret_cast<Address>(mcontext.arm_sp);
+   sample->fp = reinterpret_cast<Address>(mcontext.arm_fp);
+-#endif  // (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3))
++#endif  // (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3) &&
++        //  !defined(__UCLIBC__))
+ #elif V8_HOST_ARCH_MIPS
+   sample->pc = reinterpret_cast<Address>(mcontext.pc);
+   sample->sp = reinterpret_cast<Address>(mcontext.gregs[29]);
+

package/nodejs/nodejs.mk

@@ -0,0 +1,114 @@
+#############################################################
+#
+# nodejs
+#
+#############################################################
+
+NODEJS_VERSION = 0.8.22
+NODEJS_SOURCE = node-v$(NODEJS_VERSION).tar.gz
+NODEJS_SITE = http://nodejs.org/dist/v$(NODEJS_VERSION)
+NODEJS_DEPENDENCIES = host-python host-nodejs \
+    $(call qstrip,$(BR2_PACKAGE_NODEJS_MODULES_ADDITIONAL_DEPS))
+HOST_NODEJS_DEPENDENCIES = host-python
+NODEJS_LICENSE = MIT (core code); MIT, Apache and BSD family licenses (Bundled components)
+NODEJS_LICENSE_FILES = LICENSE
+
+ifeq ($(BR2_PACKAGE_OPENSSL),y)
+	NODEJS_DEPENDENCIES += openssl
+endif
+
+define HOST_NODEJS_CONFIGURE_CMDS
+	# Build with the static, built-in OpenSSL which is supplied as part of
+	# the nodejs source distribution.  This is needed on the host because
+	# NPM is non-functional without it, and host-openssl isn't part of
+	# buildroot.
+	(cd $(@D); \
+                ./configure \
+		--prefix=$(HOST_DIR)/usr \
+		--without-snapshot \
+		--without-dtrace \
+		--without-etw \
+	)
+endef
+
+define HOST_NODEJS_BUILD_CMDS
+	$(HOST_MAKE_ENV) $(MAKE) -C $(@D)
+endef
+
+define HOST_NODEJS_INSTALL_CMDS
+	$(HOST_MAKE_ENV) $(MAKE) -C $(@D) install
+endef
+
+ifeq ($(BR2_i386),y)
+NODEJS_CPU=ia32
+else ifeq ($(BR2_x86_64),y)
+NODEJS_CPU=x64
+else ifeq ($(BR2_arm),y)
+NODEJS_CPU=arm
+# V8 needs to know what floating point ABI the target is using.  There's also
+# a 'hard' option which we're not exposing here at the moment, because
+# buildroot itself doesn't really support it at present.
+ifeq ($(BR2_SOFT_FLOAT),y)
+NODEJS_ARM_FP=soft
+else
+NODEJS_ARM_FP=softfp
+endif
+endif
+
+define NODEJS_CONFIGURE_CMDS
+	(cd $(@D); \
+		$(TARGET_CONFIGURE_OPTS) \
+		LD="$(TARGET_CXX)" \
+		./configure \
+		--prefix=/usr \
+		--without-snapshot \
+		$(if $(BR2_PACKAGE_OPENSSL),--shared-openssl,--without-ssl) \
+		$(if $(BR2_PACKAGE_NODEJS_NPM),,--without-npm) \
+		--without-dtrace \
+		--without-etw \
+		--dest-cpu=$(NODEJS_CPU) \
+		$(if $(NODEJS_ARM_FP),--with-arm-float-abi=$(NODEJS_ARM_FP)) \
+		--dest-os=linux \
+	)
+endef
+
+define NODEJS_BUILD_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D)
+endef
+
+#
+# Build the list of modules to install based on the booleans for
+# popular modules, as well as the "additional modules" list.
+#
+NODEJS_MODULES_LIST= $(call qstrip,\
+	$(if $(BR2_PACKAGE_NODEJS_MODULES_EXPRESS),express) \
+	$(if $(BR2_PACKAGE_NODEJS_MODULES_COFFEESCRIPT),coffee-script) \
+	$(BR2_PACKAGE_NODEJS_MODULES_ADDITIONAL))
+
+#
+# We can only call NPM if there's something to install.
+#
+ifneq ($(NODEJS_MODULES_LIST),)
+define NODEJS_INSTALL_MODULES
+	# If you're having trouble with module installation, adding -d to the
+	# npm install call below and setting npm_config_rollback=false can both
+	# help in diagnosing the problem.
+	(cd $(TARGET_DIR)/usr/lib && mkdir -p node_modules && \
+		$(TARGET_CONFIGURE_OPTS) \
+		LD="$(TARGET_CXX)" \
+		npm_config_arch=$(NODEJS_CPU) \
+		npm_config_nodedir=$(BUILD_DIR)/nodejs-$(NODEJS_VERSION) \
+		$(HOST_DIR)/usr/bin/npm install \
+		$(NODEJS_MODULES_LIST) \
+	)
+endef
+endif
+
+define NODEJS_INSTALL_TARGET_CMDS
+	$(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D) DESTDIR=$(TARGET_DIR) install
+	$(NODEJS_INSTALL_MODULES)
+endef
+
+# node.js configure is a Python script and does not use autotools
+$(eval $(generic-package))
+$(eval $(host-generic-package))