From 259fda055d273a31c44cc098c297cf8f180b7e36 Mon Sep 17 00:00:00 2001
From: "Bradley T. Hughes" <bradleythughes@fastmail.fm>
Date: Sun, 30 Oct 2016 21:22:35 +0000
Subject: [PATCH 1/2] Add USES=node[:args] for specifying a dependency on
 Node.js

This is based lightly on Mk/Uses/python.mk. Add build, run, test
dependencies based on the arguments received. A port can specify which
major version it needs. If the port does not explicitly set a version,
use a default which can be overridden by the user. Current possible
values are 4, 6, and 7, which correspond to the active LTS and Current
releases from upstream.
---
 Mk/Uses/node.mk            | 98 ++++++++++++++++++++++++++++++++++++++++++++++
 Mk/bsd.default-versions.mk |  4 +-
 2 files changed, 101 insertions(+), 1 deletion(-)
 create mode 100644 Mk/Uses/node.mk

diff --git a/Mk/Uses/node.mk b/Mk/Uses/node.mk
new file mode 100644
index 000000000000..b7f3556fd2de
--- /dev/null
+++ b/Mk/Uses/node.mk
@@ -0,0 +1,98 @@
+# $FreeBSD$
+#
+# Provide support for Node.js
+#
+# Feature:      node
+# Usage:        USES=node, or USES=node:args
+# Valid ARGS:   <version>, build, run, test
+#
+# version	The major version of Node.js required by your port. If omitted,
+#		the default version is used. The user can choose which Node.js
+#		version to use as the default using:
+#
+# DEFAULT_VERSIONS+=	node=<major version>
+#
+# build		Indicates that Node.js is needed at build time and adds
+#		it to BUILD_DEPENDS.
+# run		Indicates that Node.js is needed at run time and adds
+#		it to RUN_DEPENDS.
+# test		Indicates that Node.js is needed at test time and adds
+#		it to TEST_DEPENDS.
+#
+# If build, run and test are omitted, Node.js will be added as BUILD_DEPENDS,
+# RUN_DEPENDS and TEST_DEPENDS.
+#
+# MAINTAINER:	bradleythughes@fastmail.fm
+
+.if !defined(_INCLUDE_USES_NODE_MK)
+_INCLUDE_USES_NODE_MK=    yes
+
+
+# Please keep this list sorted by ascending major version number. Be sure to
+# update the comment in Mk/bsd.default-versions.mk when changing this list.
+_NODE_MAJOR_VERSIONS=	4 6 7
+
+.if ${node_ARGS:N[467]:Nbuild:Nrun:Ntest}
+IGNORE?=        Unknown USES=node argument ${node_ARGS}
+.endif
+
+.if ${NODE_DEFAULT:N[467]}
+IGNORE?=        Invalid NODE_DEFAULT value: ${NODE_DEFAULT}, please select one of ${_NODE_MAJOR_VERSIONS}
+.endif
+
+
+# Make sure that no dependency or some other environment variable
+# pollutes the build/run dependency detection
+.undef _NODE_BUILD_DEP
+.undef _NODE_RUN_DEP
+.undef _NODE_TEST_DEP
+_NODE_ARGS=           ${node_ARGS:S/,/ /g}
+.if ${_NODE_ARGS:Mbuild}
+_NODE_BUILD_DEP=      yes
+_NODE_ARGS:=          ${_NODE_ARGS:Nbuild}
+.endif
+.if ${_NODE_ARGS:Mrun}
+_NODE_RUN_DEP=        yes
+_NODE_ARGS:=          ${_NODE_ARGS:Nrun}
+.endif
+.if ${_NODE_ARGS:Mtest}
+_NODE_TEST_DEP=       yes
+_NODE_ARGS:=          ${_NODE_ARGS:Ntest}
+.endif
+
+# The port does not specify a build, run or test dependency, assume all are
+# required.
+.if !defined(_NODE_BUILD_DEP) && !defined(_NODE_RUN_DEP) && \
+    !defined(_NODE_TEST_DEP) && !defined(NODE_NO_DEPENDS)
+_NODE_BUILD_DEP=      yes
+_NODE_RUN_DEP=        yes
+_NODE_TEST_DEP=       yes
+.endif
+
+
+# The remaining argument, if any, is the Node.js major version to use.
+_NODE_VERSION=	${_NODE_ARGS:S/.//g}
+.if empty(_NODE_VERSION)
+_NODE_VERSION=	${NODE_DEFAULT}
+.endif
+.if ${_NODE_VERSION} == ${_NODE_MAJOR_VERSIONS:[-1]}
+# The latest major version always lives in www/node
+_NODE_PORT=	node:www/node
+.else
+_NODE_PORT=	node:www/node${_NODE_VERSION}
+.endif
+
+
+# Add build, run, and test dependencies as required.
+.if defined(_NODE_BUILD_DEP)
+BUILD_DEPENDS+=	${_NODE_PORT}
+.endif
+.if defined(_NODE_RUN_DEP)
+RUN_DEPENDS+=	${_NODE_PORT}
+.endif
+.if defined(_NODE_TEST_DEP)
+TEST_DEPENDS+=	${_NODE_PORT}
+.endif
+
+
+.endif # _INCLUDE_USES_NODE_MK
diff --git a/Mk/bsd.default-versions.mk b/Mk/bsd.default-versions.mk
index 699dad3faf98..4efce26efd92 100644
--- a/Mk/bsd.default-versions.mk
+++ b/Mk/bsd.default-versions.mk
@@ -15,7 +15,7 @@ _INCLUDE_BSD_DEFAULT_VERSIONS_MK=	yes
 
 LOCALBASE?=	/usr/local
 
-.for lang in APACHE BDB FIREBIRD FPC GCC GHOSTSCRIPT LINUX LUA MYSQL PERL5 \
+.for lang in APACHE BDB FIREBIRD FPC GCC GHOSTSCRIPT LINUX LUA MYSQL NODE PERL5 \
 	PGSQL PHP PYTHON PYTHON2 PYTHON3 RUBY SSL TCLTK
 .if defined(${lang}_DEFAULT)
 WARNING+=	"The variable ${lang}_DEFAULT is set and it should only be defined through DEFAULT_VERSIONS+=${lang:tl}=${${lang}_DEFAULT} in /etc/make.conf"
@@ -51,6 +51,8 @@ WARNING+=		"OVERRIDE_LINUX_BASE_PORT is deprecated, please use DEFAULT_VERSIONS+
 LUA_DEFAULT?=		5.2
 # Possible values: 5.1, 5.5, 5.6, 5.7, 5.5m, 10.0m, 10.1m, 5.5p, 5.6p
 MYSQL_DEFAULT?=		5.6
+# Possible values: 4, 6, 7
+NODE_DEFAULT?=		7
 # Possible values: 5.20, 5.22, devel
 .if !exists(${LOCALBASE}/bin/perl) || (!defined(_PORTS_ENV_CHECK) && \
     defined(PACKAGE_BUILDING))
-- 
2.11.0