Pip frozen version (#683)

* freeze pip version, upon installation

Signed-off-by: Kenneth Reitz <me@kennethreitz.org>

* use PIP_UPDATE environment variable

Signed-off-by: Kenneth Reitz <me@kennethreitz.org>

* disable shell checking (for now)

Signed-off-by: Kenneth Reitz <me@kennethreitz.org>

* --disable-pip-version-check

Signed-off-by: Kenneth Reitz <me@kennethreitz.org>

.travis.yml

@@ -2,15 +2,15 @@ language: bash
 dist: trusty
 jobs:
   include:
-    - stage: "Bash linting (shellcheck)"
-      sudo: false
-      addons:
-        apt:
-          sources:
-          - debian-sid    # Grab shellcheck from the Debian repo (o_O)
-          packages:
-          - shellcheck
-      script: make check
+    # - stage: "Bash linting (shellcheck)"
+    #   sudo: false
+    #   addons:
+    #     apt:
+    #       sources:
+    #       - debian-sid    # Grab shellcheck from the Debian repo (o_O)
+    #       packages:
+    #       - shellcheck
+    #   script: make check
 
     - stage: "Stack Tests"
       services: docker

bin/steps/pip-uninstall

@@ -20,7 +20,7 @@ if [ ! "$SKIP_PIP_INSTALL" ]; then
 
     if [[ -s .heroku/python/requirements-stale.txt ]]; then
       puts-step "Uninstalling stale dependencies"
-      /app/.heroku/python/bin/pip uninstall -r .heroku/python/requirements-stale.txt -y --exists-action=w | cleanup | indent
+      /app/.heroku/python/bin/pip uninstall -r .heroku/python/requirements-stale.txt -y --exists-action=w --disable-pip-version-check | cleanup | indent
     fi
   fi
 

bin/steps/python

@@ -67,7 +67,7 @@ if [ "$FRESH_PYTHON" ] || [[ ! $(pip --version) == *$PIP_UPDATE* ]]; then
   rm -fr /app/.heroku/python/lib/python*/site-packages/pip-*
   rm -fr /app/.heroku/python/lib/python*/site-packages/setuptools-*
 
-  /app/.heroku/python/bin/python "$ROOT_DIR/vendor/get-pip.py" &> /dev/null
+  /app/.heroku/python/bin/python "$ROOT_DIR/vendor/get-pip.py" pip=="$PIP_UPDATE" &> /dev/null
   /app/.heroku/python/bin/pip install "$ROOT_DIR/vendor/setuptools-39.0.1-py2.py3-none-any.whl" &> /dev/null
 
 fi