Create local build environment using rbenv and GNU make

.gitignore

@@ -8,3 +8,7 @@ Thumbs.db
 
 .rbenv-version
 .rvmrc
+
+Makefile.local
+.cache/
+.pkg/

Gemfile

@@ -0,0 +1,3 @@
+source "http://rubygems.org"
+gem 'jekyll', '= 0.11.0'
+gem 'liquid', '= 2.2.2'

Gemfile.lock

@@ -0,0 +1,29 @@
+GEM
+  remote: http://rubygems.org/
+  specs:
+    albino (1.3.3)
+      posix-spawn (>= 0.3.6)
+    classifier (1.3.3)
+      fast-stemmer (>= 1.0.0)
+    directory_watcher (1.4.1)
+    fast-stemmer (1.0.1)
+    jekyll (0.11.0)
+      albino (>= 1.3.2)
+      classifier (>= 1.3.1)
+      directory_watcher (>= 1.1.1)
+      kramdown (>= 0.13.2)
+      liquid (>= 1.9.0)
+      maruku (>= 0.5.9)
+    kramdown (0.14.0)
+    liquid (2.2.2)
+    maruku (0.6.1)
+      syntax (>= 1.0.0)
+    posix-spawn (0.3.6)
+    syntax (1.0.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  jekyll (= 0.11.0)
+  liquid (= 2.2.2)

Makefile

@@ -0,0 +1,97 @@
+ROOT=$(shell pwd)
+CACHE_ROOT=${ROOT}/.cache
+PKG_ROOT=${ROOT}/.pkg
+
+-include Makefile.local
+
+.PHONY: all
+all: ${PKG_ROOT}/.stamp-h
+
+.PHONY: shell
+run: all
+	RBENV_ROOT="${PKG_ROOT}" "${PKG_ROOT}"/bin/rbenv exec \
+	    jekyll --server --pygments --no-lsi --safe
+
+.PHONY: shell
+shell: all
+	RBENV_ROOT="${PKG_ROOT}" "${PKG_ROOT}"/bin/rbenv exec \
+	    irb
+
+.PHONY: mostlyclean
+mostlyclean:
+
+.PHONY: clean
+clean: mostlyclean
+	-rm -rf "${PKG_ROOT}"
+
+.PHONY: distclean
+distclean: clean
+	-rm -rf "${CACHE_ROOT}"
+	-rm -rf Makefile.local
+
+.PHONY: maintainer-clean
+maintainer-clean: distclean
+	@echo 'This command is intended for maintainers to use; it'
+	@echo 'deletes files that may need special tools to rebuild.'
+
+# ===--------------------------------------------------------------------===
+
+${CACHE_ROOT}/rbenv/rbenv-0.3.0.tar.gz:
+	mkdir -p ${CACHE_ROOT}/rbenv
+	curl -L 'https://nodeload.github.com/sstephenson/rbenv/tarball/v0.3.0' >'$@'
+
+${CACHE_ROOT}/rbenv/rbenv-gemset-0.3.0.tar.gz:
+	mkdir -p ${CACHE_ROOT}/rbenv
+	curl -L 'https://nodeload.github.com/jamis/rbenv-gemset/tarball/v0.3.0' >'$@'
+
+${CACHE_ROOT}/rbenv/ruby-build-20120815.tar.gz:
+	mkdir -p ${CACHE_ROOT}/rbenv
+	curl -L 'https://nodeload.github.com/sstephenson/ruby-build/tarball/v20120815' >'$@'
+
+${PKG_ROOT}/.stamp-h: Gemfile Gemfile.lock ${CACHE_ROOT}/rbenv/rbenv-0.3.0.tar.gz ${CACHE_ROOT}/rbenv/rbenv-gemset-0.3.0.tar.gz ${CACHE_ROOT}/rbenv/ruby-build-20120815.tar.gz
+	# Because build and run-time dependencies are not thoroughly tracked,
+	# it is entirely possible that rebuilding the development environment
+	# on top of an existing one could result in a broken build. For the
+	# sake of consistency and preventing unnecessary, difficult-to-debug
+	# problems, the entire development environment is rebuilt from scratch
+	# everytime this make target is selected.
+	${MAKE} clean
+
+	# The `${PKG_ROOT}` directory, if it exists, is removed by the `clean`
+	# target. This might cause problems with build scripts executed later
+	# which assume their existence, so they are created now if they don't
+	# already exist.
+	mkdir -p "${PKG_ROOT}"
+
+	# rbenv (and its plugins, ruby-build and rbenv-gemset) is used to build,
+	# install, and manage ruby environments:
+	tar \
+	    -C "${PKG_ROOT}" --strip-components 1 --gzip \
+	    -xf "${CACHE_ROOT}"/rbenv/rbenv-0.3.0.tar.gz
+	mkdir -p "${PKG_ROOT}"/plugins/ruby-build
+	tar \
+	    -C "${PKG_ROOT}"/plugins/ruby-build --strip-components 1 --gzip \
+	    -xf "${CACHE_ROOT}"/rbenv/ruby-build-20120815.tar.gz
+	mkdir -p "${PKG_ROOT}"/plugins/rbenv-gemset
+	tar \
+	    -C "${PKG_ROOT}"/plugins/rbenv-gemset --strip-components 1 --gzip \
+	    -xf "${CACHE_ROOT}"/rbenv/rbenv-gemset-0.3.0.tar.gz
+
+	# Trigger a build and install of our required ruby version, configure our
+	# gemset, and select ruby version & gemset environments:
+	- RBENV_ROOT="${PKG_ROOT}" "${PKG_ROOT}"/bin/rbenv install 1.9.3-p194
+	- RBENV_ROOT="${PKG_ROOT}" "${PKG_ROOT}"/bin/rbenv rehash
+	echo 1.9.3-p194 >.rbenv-version
+
+	# Install bundler & gemset dependencies:
+	RBENV_ROOT="${PKG_ROOT}" "${PKG_ROOT}"/bin/rbenv exec gem install bundler
+	- RBENV_ROOT="${PKG_ROOT}" "${PKG_ROOT}"/bin/rbenv rehash
+	RBENV_ROOT="${PKG_ROOT}" "${PKG_ROOT}"/bin/rbenv exec bundle install
+	- RBENV_ROOT="${PKG_ROOT}" "${PKG_ROOT}"/bin/rbenv rehash
+
+	# All done!
+	touch "${PKG_ROOT}"/.stamp-h
+
+# ===--------------------------------------------------------------------===
+# End of File
+# ===--------------------------------------------------------------------===

_config.yml

@@ -2,7 +2,7 @@
 # For more see: https://github.com/mojombo/jekyll/wiki/Permalinks
 permalink: /:categories/:year/:month/:day/:title 
 
-exclude: [".rvmrc", ".rbenv-version", "README.md", "Rakefile", "changelog.md"]
+exclude: [".rvmrc", ".rbenv-version", "Gemfile", "Gemfile.lock", "Makefile", "README.md", "Rakefile", "changelog.md", "configure"]
 auto: true
 pygments: true
 

configure

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+touch Makefile.local
+
+# ===--------------------------------------------------------------------===
+# End of File
+# ===--------------------------------------------------------------------===