Conditionally write requirements.txt for snyk, only when travis runs tests for python 2.7

Author: andyjack

.travis.yml

@@ -36,15 +36,12 @@ before_install:
     if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then
       sudo apt-get install -y nodejs;
       npm install -g snyk;
-      pip install -r requirements.txt;
     fi
 
-install:
-  - if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then snyk test --org=maxmind; fi
-
 script:
   - if [[ $TRAVIS_PYTHON_VERSION != 'pypy' ]]; then export MM_FORCE_EXT_TESTS=1; fi
   - CFLAGS="-Werror -Wall -Wextra" coverage run --source maxminddb setup.py test
+  - if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then snyk test --org=maxmind --file=requirements.txt; fi
   - if [[ $TRAVIS_PYTHON_VERSION == '3.7' ]]; then pylint --rcfile .pylintrc maxminddb/*.py; fi
   - if [[ $TRAVIS_PYTHON_VERSION == '3.7' ]]; then ./.travis-yapf.sh; fi
 

requirements.txt

@@ -19,6 +19,9 @@
 if sys.version_info[0] == 2 or (sys.version_info[0] == 3
                                 and sys.version_info[1] < 3):
     requirements.append('ipaddress')
+    if os.environ.get('SNYK_TOKEN'):
+        f = open('requirements.txt', 'w')
+        [f.write(r + '\n') for r in requirements]
 
 compile_args = ['-Wall', '-Wextra']
 
@@ -38,6 +41,7 @@
 # Taken from SQLAlchemy, but this same basic code exists in many modules.
 ext_errors = (CCompilerError, DistutilsExecError, DistutilsPlatformError)
 
+
 class BuildFailed(Exception):
     def __init__(self):
         self.cause = sys.exc_info()[1]  # work around py 2/3 different syntax