Pipe curl's download directly to extract/execute program to reduce nu…

…mber of commands

Signed-off-by: Viranch Mehta <[email protected]>

Dockerfile

@@ -22,46 +22,38 @@ RUN curl https://get.docker.com/builds/Linux/x86_64/docker-latest \
 
 # Build Python 2.7.9 from source
 RUN set -ex; \
-    curl -LO https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tgz; \
-    tar -xzf Python-2.7.9.tgz; \
+    curl -L https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tgz | tar -xz; \
     cd Python-2.7.9; \
     ./configure --enable-shared; \
     make; \
     make install; \
     cd ..; \
-    rm -rf /Python-2.7.9; \
-    rm Python-2.7.9.tgz
+    rm -rf /Python-2.7.9
 
 # Build python 3.4 from source
 RUN set -ex; \
-    curl -LO https://www.python.org/ftp/python/3.4.3/Python-3.4.3.tgz; \
-    tar -xzf Python-3.4.3.tgz; \
+    curl -L https://www.python.org/ftp/python/3.4.3/Python-3.4.3.tgz | tar -xz; \
     cd Python-3.4.3; \
     ./configure --enable-shared; \
     make; \
     make install; \
     cd ..; \
-    rm -rf /Python-3.4.3; \
-    rm Python-3.4.3.tgz
+    rm -rf /Python-3.4.3
 
 # Make libpython findable
 ENV LD_LIBRARY_PATH /usr/local/lib
 
 # Install setuptools
 RUN set -ex; \
-    curl -LO https://bootstrap.pypa.io/ez_setup.py; \
-    python ez_setup.py; \
-    rm ez_setup.py
+    curl -L https://bootstrap.pypa.io/ez_setup.py | python
 
 # Install pip
 RUN set -ex; \
-    curl -LO https://pypi.python.org/packages/source/p/pip/pip-7.0.1.tar.gz; \
-    tar -xzf pip-7.0.1.tar.gz; \
+    curl -L https://pypi.python.org/packages/source/p/pip/pip-7.0.1.tar.gz | tar -xz; \
     cd pip-7.0.1; \
     python setup.py install; \
     cd ..; \
-    rm -rf pip-7.0.1; \
-    rm pip-7.0.1.tar.gz
+    rm -rf pip-7.0.1
 
 # Python3 requires a valid locale
 RUN echo "en_US.UTF-8 UTF-8" > /etc/locale.gen && locale-gen