use vagrant to do easy cross-platform testing

Vagrantfile

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+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# TODO
+# add pkg-config to sphinx docs, needed for fuse
+# reduce lzma compression level to << 9 in unit tests, needs more memory than vagrant box has
+# /usr/local/include/lz4.h for freebsd - use same code as for finding the openssl headers
+# llfuse <0.41 >0.41.1 broken install due to UnicodeError
+
+def packages_prepare_wheezy
+  return <<-EOF
+      # debian 7 wheezy does not have lz4, but it is available from wheezy-backports:
+      echo "deb http://http.debian.net/debian wheezy-backports main" > /etc/apt/sources.list.d/wheezy-backports.list
+  EOF
+end
+
+def packages_prepare_precise
+  return <<-EOF
+      # ubuntu 12.04 precise does not have lz4, but it is available from a ppa:
+      add-apt-repository -y ppa:gezakovacs/lz4
+  EOF
+end
+
+def packages_debianoid
+  return <<-EOF
+    apt-get update
+    apt-get install -y python3-dev python3-setuptools
+    apt-get install -y libssl-dev libacl1-dev liblz4-dev
+    apt-get install -y libfuse-dev fuse pkg-config
+    apt-get install -y fakeroot build-essential git
+    apt-get install -y curl
+    # this way it works on older dists (like ubuntu 12.04) also:
+    easy_install3 pip
+    pip3 install virtualenv
+  EOF
+end
+
+def packages_freebsd
+  return <<-EOF
+    pkg install -y python34 py34-setuptools34
+    ln -s /usr/local/bin/python3.4 /usr/local/bin/python3
+    pkg install -y openssl liblz4
+    pkg install -y fusefs-libs pkgconf
+    pkg install -y fakeroot git
+    pkg install -y curl
+    easy_install-3.4 pip
+    pip3 install virtualenv
+    # make FUSE work
+    echo 'fuse_load="YES"' >> /boot/loader.conf
+    echo 'vfs.usermount=1' >> /etc/sysctl.conf
+    kldload fuse
+    sysctl vfs.usermount=1
+    pw groupmod operator -M vagrant
+  EOF
+end
+
+def packages_darwin
+  return <<-EOF
+    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+    brew update || brew update
+    brew outdated openssl || brew upgrade openssl
+    brew outdated pyenv || brew upgrade pyenv
+    brew install lz4
+    brew install osxfuse
+    pyenv install 3.4.3
+    pyenv global 3.4.3
+    pyenv rehash
+    python -m pip install --user virtualenv
+  EOF
+end
+
+def prepare_user(boxname)
+  return <<-EOF
+    echo export 'PATH=/usr/local/bin:$PATH' >> ~/.profile
+    . ~/.profile
+
+    cd /vagrant/borg
+    virtualenv --python=python3 borg-env
+    . borg-env/bin/activate
+
+    cd borg
+    pip install -U pip setuptools
+    pip install 'llfuse<0.41'  # 0.41 does not install due to UnicodeDecodeError
+    pip install -r requirements.d/development.txt
+    pip install -e .
+
+    echo
+    echo "Run:"
+    echo "  vagrant rsync #{boxname}"
+    echo "  vagrant ssh #{boxname} -c 'cd project/path; ...'"
+  EOF
+end
+
+def fix_perms
+  return <<-EOF
+    chown -R vagrant /vagrant/borg
+  EOF
+end
+
+Vagrant.configure(2) do |config|
+  # use rsync to copy content to the folder
+  config.vm.synced_folder ".", "/vagrant/borg/borg", :type => "rsync"
+  config.vm.synced_folder ".", "/vagrant", disabled: true
+
+  # fix permissions on synced folder
+  config.vm.provision "fix perms", :type => :shell, :inline => fix_perms
+
+  config.vm.define "trusty64" do |b|
+    b.vm.box = "ubuntu/trusty64"
+    b.vm.provision "packages debianoid", :type => :shell, :inline => packages_debianoid
+    b.vm.provision "prepare user", :type => :shell, :privileged => false, :inline => prepare_user("trusty64")
+  end
+
+  config.vm.define "precise32" do |b|
+    b.vm.box = "ubuntu/precise32"
+    b.vm.provision "packages prepare precise", :type => :shell, :inline => packages_prepare_precise
+    b.vm.provision "packages debianoid", :type => :shell, :inline => packages_debianoid
+    b.vm.provision "prepare user", :type => :shell, :privileged => false, :inline => prepare_user("precise32")
+  end
+
+  config.vm.define "jessie64" do |b|
+    b.vm.box = "debian/jessie64"
+    b.vm.provision "packages debianoid", :type => :shell, :inline => packages_debianoid
+    b.vm.provision "prepare user", :type => :shell, :privileged => false, :inline => prepare_user("jessie64")
+  end
+
+  config.vm.define "wheezy32" do |b|
+    b.vm.box = "puppetlabs/debian-7.8-32-nocm"
+    b.vm.provision "packages prepare wheezy", :type => :shell, :inline => packages_prepare_wheezy
+    b.vm.provision "packages debianoid", :type => :shell, :inline => packages_debianoid
+    b.vm.provision "prepare user", :type => :shell, :privileged => false, :inline => prepare_user("wheezy32")
+  end
+
+  # BSD
+  config.vm.define "freebsd" do |b|
+    b.vm.box = "geoffgarside/freebsd-10.2"
+    #b.vm.base_mac = "11:22:33:44:56:67"
+    b.vm.provision "packages freebsd", :type => :shell, :inline => packages_freebsd
+    b.vm.provision "prepare user", :type => :shell, :privileged => false, :inline => prepare_user("freebsd")
+  end
+
+  # OS X
+  config.vm.define "darwin" do |b|
+    b.vm.box = "jhcook/yosemite-clitools"
+    b.vm.provision "packages darwin", :type => :shell, :privileged => false, :inline => packages_darwin
+    b.vm.provision "prepare user",   :type => :shell, :privileged => false, :inline => prepare_user("darwin")
+  end
+end