Build Linux binaries using Vagrant (#132)

Adds a Vagrantfile to provision a Debian VM, and recipes to build for
linux on the VM.

.gitignore

@@ -1,2 +1,2 @@
 /target
-/tmp
+/.vagrant

Vagrantfile

@@ -0,0 +1,18 @@
+Vagrant.configure(2) do |config|
+  config.vm.box = 'debian/jessie64'
+
+  config.vm.provision "shell", inline: <<-EOS
+    apt-get -y update
+    apt-get install -y clang git vim
+  EOS
+
+  config.vm.provision "shell", privileged: false, inline: <<-EOS
+    curl https://sh.rustup.rs -sSf > install-rustup
+    chmod +x install-rustup
+    ./install-rustup -y
+    source ~/.cargo/env
+    rustup target add x86_64-unknown-linux-musl
+    cargo install just
+    git clone https://github.com/casey/just.git
+  EOS
+end

justfile

@@ -38,6 +38,17 @@ build-binary-mac VERSION:
 build-binary-linux VERSION:
 	just build-binary {{VERSION}} x86_64-unknown-linux-musl
 
+build-and-fetch-linux-binary VERSION:
+	vagrant up
+	vagrant ssh -- 'bash -lc "cd just && git checkout build-binaries && git pull && just build-binary-linux {{VERSION}}"'
+	rm -rf tmp/linux
+	mkdir tmp/linux
+	scp \
+	  -P 2222 \
+	  -i .vagrant/machines/default/virtualbox/private_key \
+	  'vagrant@127.0.0.1:just/tmp/*-x86_64-unknown-linux-musl.tar.gz' \
+	  tmp/linux
+
 build-binary VERSION TARGET:
 	git diff --no-ext-diff --quiet --exit-code
 	git checkout {{VERSION}}
@@ -49,12 +60,11 @@ build-binary VERSION TARGET:
 	  GRAMMAR.md \
 	  LICENSE.md \
 	  README.md \
-	  target/release/just \
+	  target/{{TARGET}}/release/just \
 	  tmp/just-{{VERSION}}-{{TARGET}}
 	cd tmp && tar cvfz \
 	  just-{{VERSION}}-{{TARGET}}.tar.gz \
 	  just-{{VERSION}}-{{TARGET}}
-	open tmp
 
 # clean up feature branch BRANCH
 done BRANCH:
@@ -105,10 +115,11 @@ backtick-fail:
 	echo {{`exit 1`}}
 
 test-quine:
-	cargo run -- quine clean
+	cargo run -- quine
 
 # make a quine, compile it, and verify it
-quine: create
+quine:
+	@echo '{{quine-text}}' > tmp/gen0.c
 	cc tmp/gen0.c -o tmp/gen0
 	./tmp/gen0 > tmp/gen1.c
 	cc tmp/gen1.c -o tmp/gen1
@@ -132,11 +143,6 @@ quine-text = '
 	}
 '
 
-# create our quine
-create:
-	mkdir -p tmp
-	@echo '{{quine-text}}' > tmp/gen0.c
-
 # run all polyglot recipes
 polyglot: python js perl sh ruby
 

tmp/.gitignore

@@ -0,0 +1 @@
+*