use double quotes around pkgs in conda and pip installs (#287)

* use double quotes around pkgs in conda and pip installs

* add user workdir to fix conda installs

Author: kaczmarj

neurodocker/interfaces/tests/test_miniconda.py

@@ -11,6 +11,7 @@ def test_docker(self):
             'instructions': [
                 ('base', 'centos:7'),
                 ('user', 'neuro'),
+                ('workdir', '/home/neuro'),
                 (
                     'miniconda',
                     {
@@ -40,6 +41,7 @@ def test_singularity(self):
             'instructions': [
                 ('base', 'docker://debian:stretch-slim'),
                 ('user', 'neuro'),
+                ('workdir', '/home/neuro'),
                 (
                     'miniconda',
                     {

neurodocker/templates/miniconda.yaml

@@ -35,9 +35,9 @@ generic:
       conda install -y {{ miniconda.conda_opts|default("-q") }} --name {{ miniconda.env_name }} \
       {%- for pkg in miniconda.conda_install %}
           {% if not loop.last -%}
-          '{{ pkg }}' \
+          "{{ pkg }}" \
           {%- else -%}
-          '{{ pkg }}'
+          "{{ pkg }}"
           {%- endif -%}
       {% endfor %}
       sync && conda clean --all && sync
@@ -47,9 +47,9 @@ generic:
         pip install --no-cache-dir {{ miniconda.pip_opts }} \
         {%- for pkg in miniconda.pip_install %}
             {% if not loop.last -%}
-            '{{ pkg }}' \
+            "{{ pkg }}" \
             {%- else -%}
-            '{{ pkg }}'
+            "{{ pkg }}"
             {%- endif -%}
         {% endfor %}"
       rm -rf ~/.cache/pip/*