functionalize install step

Author: Shoshana Berleant

.travis.yml

@@ -10,7 +10,7 @@ env:
 - INSTALL_DEB_DEPENDECIES=false
 - INSTALL_DEB_DEPENDECIES=true DUECREDIT_ENABLE=yes
 before_install:
-- function download_bi {
+- function bef_inst {
   wget http://repo.continuum.io/miniconda/Miniconda${TRAVIS_PYTHON_VERSION:0:1}-latest-Linux-x86_64.sh
   -O /home/travis/.cache/miniconda.sh;
   bash /home/travis/.cache/miniconda.sh -b -p /home/travis/miniconda;
@@ -25,24 +25,24 @@ before_install:
   if $INSTALL_DEB_DEPENDECIES; then
     source /etc/fsl/fsl.sh;
     source /etc/afni/afni.sh; fi;
-  export FSLOUTPUTTYPE=NIFTI_GZ;
-  bleh; }
-- travis_retry download_bi
+  export FSLOUTPUTTYPE=NIFTI_GZ; }
+- travis_retry bef_inst
 install:
-- conda config --add channels conda-forge
-- conda update --yes conda
-- conda update --all -y python=$TRAVIS_PYTHON_VERSION
-# - if [[ "${INSTALL_DEB_DEPENDECIES}" == "true" && ${TRAVIS_PYTHON_VERSION:0:1} == "2" ]]; then
-#   conda install -y vtk mayavi; fi
-- conda install -y nipype matplotlib nitime
-- pip install python-coveralls coverage doctest-ignore-unicode
-- if [ ! -z "$DUECREDIT_ENABLE"]; then pip install duecredit; fi
-- rm -r /home/travis/miniconda/lib/python${TRAVIS_PYTHON_VERSION}/site-packages/nipype*
-- pip install -r requirements.txt
-- pip install -e .
-- export COVERAGE_PROCESS_START=$(pwd)/.coveragerc
-- export COVERAGE_DATA_FILE=$(pwd)/.coverage
-- echo "data_file = ${COVERAGE_DATA_FILE}" >> ${COVERAGE_PROCESS_START}
+- function inst {
+  conda config --add channels conda-forge ;
+  conda update --yes conda ;
+  conda update --all -y python=$TRAVIS_PYTHON_VERSION ;
+  conda install -y nipype matplotlib nitime ;
+  pip install python-coveralls coverage doctest-ignore-unicode ;
+  if [ ! -z "$DUECREDIT_ENABLE"]; then pip install duecredit; fi ;
+  rm -r /home/travis/miniconda/lib/python${TRAVIS_PYTHON_VERSION}/site-packages/nipype* ;
+  pip install -r requirements.txt ;
+  pip install -e . ;
+  export COVERAGE_PROCESS_START=$(pwd)/.coveragerc ;
+  export COVERAGE_DATA_FILE=$(pwd)/.coverage ;
+  echo "data_file = ${COVERAGE_DATA_FILE}" >> ${COVERAGE_PROCESS_START} ;
+  bleh ; }
+- travis_retry inst
 script:
 - python -W once:FSL:UserWarning:nipype `which nosetests` --with-doctest --with-doctest-ignore-unicode --with-cov --cover-package nipype --logging-level=DEBUG --verbosity=3
 after_success: