travis: inject travis_retry_pip into tox.ini

Author: blueyed

.travis.yml

@@ -45,13 +45,15 @@ matrix:
     - env: TESTENV=python3.4-master-sqlite
     - env: TESTENV=python3.4-master-sqlite_file
 install:
-  # Create pip script, using travis_retry (a function).
-  - _orig_pip="$(which pip)"
+  # Create pip wrapper script, using travis_retry (a function) and
+  # inject it into tox.ini.
   - mkdir -p bin
   - PATH=$PWD/bin:$PATH
-  - printf '#!/bin/sh\n' > bin/pip
-  - declare -f travis_retry >> bin/pip
-  - printf '\necho "Using pip-wrapper.."\ntravis_retry %s "$@"' $_orig_pip >> bin/pip
-  - chmod +x bin/pip
+  - printf '#!/bin/sh\n' > bin/travis_retry_pip
+  - declare -f travis_retry >> bin/travis_retry_pip
+  - printf '\necho "Using pip-wrapper.." >&2\ntravis_retry pip "$@"' >> bin/travis_retry_pip
+  - chmod +x bin/travis_retry_pip
+  - sed -i 's/\[testenv\]/\0\ninstall_command = travis_retry_pip install {opts} {packages}/' tox.ini
+
   - pip install tox
 script: tox -e $TESTENV

generate_configurations.py

@@ -226,14 +226,16 @@ def make_travis_yml(envs):
           allow_failures:
         %(allow_failures)s
         install:
-          # Create pip script, using travis_retry (a function).
-          - _orig_pip="$(which pip)"
+          # Create pip wrapper script, using travis_retry (a function) and
+          # inject it into tox.ini.
           - mkdir -p bin
           - PATH=$PWD/bin:$PATH
-          - printf '#!/bin/sh\\n' > bin/pip
-          - declare -f travis_retry >> bin/pip
-          - printf '\\necho "Using pip-wrapper.."\\ntravis_retry %%s "$@"' $_orig_pip >> bin/pip
-          - chmod +x bin/pip
+          - printf '#!/bin/sh\\n' > bin/travis_retry_pip
+          - declare -f travis_retry >> bin/travis_retry_pip
+          - printf '\\necho "Using pip-wrapper.." >&2\\ntravis_retry pip "$@"' >> bin/travis_retry_pip
+          - chmod +x bin/travis_retry_pip
+          - sed -i 's/\[testenv\]/\\0\\ninstall_command = travis_retry_pip install {opts} {packages}/' tox.ini
+
           - pip install tox
         script: tox -e $TESTENV
         """).strip("\n")