bindata: Add infrastructure for building core mcl files

This should prepare us so that we can build native mcl code alongside
the core *.go files which we already have. This includes a single mcl
file that is used as a placeholder so that the build doesn't fail if we
don't have any mcl files in the core/ directory. It will get ignored
automatically.

Makefile

@@ -119,6 +119,7 @@ race:
 bindata: ## generate go files from non-go sources
 	@echo "Generating: bindata..."
 	$(MAKE) --quiet -C bindata
+	$(MAKE) --quiet -C lang/funcs
 
 generate:
 	go generate
@@ -163,6 +164,7 @@ crossbuild: ${crossbuild_targets}
 
 clean: ## clean things up
 	$(MAKE) --quiet -C bindata clean
+	$(MAKE) --quiet -C lang/funcs clean
 	$(MAKE) --quiet -C lang clean
 	[ ! -e $(PROGRAM) ] || rm $(PROGRAM)
 	rm -f *_stringer.go	# generated by `go generate`

bindata/Makefile

@@ -16,9 +16,12 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # The bindata target generates go files from any source defined below. To use
-# the files, import the "bindata" package and use:
+# the files, import the generated "bindata" package and use:
 # `bytes, err := bindata.Asset("FILEPATH")`
 # where FILEPATH is the path of the original input file relative to `bindata/`.
+# To get a list of files stored in this "bindata" package, you can use:
+# `paths := bindata.AssetNames()` and `paths, err := bindata.AssetDir(name)`
+# to get a list of files with a directory prefix.
 
 .PHONY: build clean
 default: build
@@ -34,5 +37,5 @@ bindata.go: ../COPYING
 	@ROOT=$$(dirname "$${BASH_SOURCE}")/.. && $$ROOT/misc/header.sh '$@'
 
 clean:
-	# remove generated bindata/*.go
+	# remove generated bindata.go
-	@ROOT=$$(dirname "$${BASH_SOURCE}")/.. && rm -f *.go
+	@ROOT=$$(dirname "$${BASH_SOURCE}")/.. && rm -f bindata.go

lang/funcs/Makefile

@@ -0,0 +1,44 @@
+# Mgmt
+# Copyright (C) 2013-2018+ James Shubin and the project contributors
+# Written by James Shubin <james@shubin.ca> and the project contributors
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# The bindata target generates go files from any source defined below. To use
+# the files, import the generated "bindata" package and use:
+# `bytes, err := bindata.Asset("FILEPATH")`
+# where FILEPATH is the path of the original input file relative to `bindata/`.
+# To get a list of files stored in this "bindata" package, you can use:
+# `paths := bindata.AssetNames()` and `paths, err := bindata.AssetDir(name)`
+# to get a list of files with a directory prefix.
+
+.PHONY: build clean
+default: build
+
+MCL_FILES := $(shell find * -name '*.mcl' -not -path 'old/*' -not -path 'tmp/*')
+GENERATED = bindata/bindata.go
+
+build: $(GENERATED)
+
+# add more input files as dependencies at the end here...
+$(GENERATED): $(MCL_FILES)
+	@# go-bindata --pkg bindata -o <OUTPUT> <INPUT>
+	go-bindata --pkg bindata -o ./$@ $^
+	@# gofmt the output file
+	gofmt -s -w $@
+	@ROOT=$$(dirname "$${BASH_SOURCE}")/../.. && $$ROOT/misc/header.sh '$@'
+
+clean:
+	@# remove generated bindata/bindata.go
+	@ROOT=$$(dirname "$${BASH_SOURCE}")/../.. && rm -f $(GENERATED)

lang/funcs/bindata.mcl

@@ -0,0 +1,2 @@
+# You can add *.mcl files alongside the *.go files into the core/ directory.
+# They will get compiled into the binary when it is built.

lang/funcs/bindata/.gitignore

@@ -0,0 +1,2 @@
+# this file gets generated here
+bindata.go

lang/funcs/bindata/doc.go

@@ -0,0 +1,19 @@
+// Mgmt
+// Copyright (C) 2013-2018+ James Shubin and the project contributors
+// Written by James Shubin <james@shubin.ca> and the project contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+// Package bindata stores core mcl code that is built-in at compile time.
+package bindata