Trim the dockerfile and re-use the virtualenv we already have.

Signed-off-by: Daniel Nephin <dnephin@docker.com>

script/build-linux

@@ -4,8 +4,4 @@ set -ex
 
 TAG="docker-compose"
 docker build -t "$TAG" .
-docker run \
-  --rm \
-  --volume="$(pwd):/code" \
-  --entrypoint="script/build-linux-inner" \
-  "$TAG"
+docker run --rm --entrypoint="script/build-linux-inner" "$TAG"

script/build-linux-inner

@@ -3,11 +3,12 @@
 set -ex
 
 TARGET=dist/docker-compose-Linux-x86_64
+VENV=/code/.tox/py27
 
 mkdir -p `pwd`/dist
 chmod 777 `pwd`/dist
 
-pip install -r requirements-build.txt
-su -c "pyinstaller docker-compose.spec" user
+$VENV/bin/pip install -r requirements-build.txt
+su -c "$VENV/bin/pyinstaller docker-compose.spec" user
 mv dist/docker-compose $TARGET
 $TARGET version