add loging to pip-install

bin/compile

@@ -29,6 +29,9 @@ PYTHON_EXE="/app/.heroku/python/bin/python"
 PIP_VERSION="7.1.2"
 SETUPTOOLS_VERSION="18.3.2"
 
+# Common Problem Warnings
+export WARNINGS_LOG=$(mktemp)
+
 # Setup bpwatch
 export PATH=$PATH:$ROOT_DIR/vendor/bpwatch
 LOGPLEX_KEY="t.b90d9d29-5388-4908-9737-b4576af1d4ce"

bin/steps/pip-install

@@ -4,7 +4,7 @@ puts-step "Installing dependencies with pip"
 [ ! "$FRESH_PYTHON" ] && bpwatch start pip_install
 [ "$FRESH_PYTHON" ] && bpwatch start pip_install_first
 
-/app/.heroku/python/bin/pip install -r requirements.txt --exists-action=w --src=./.heroku/src --allow-all-external --disable-pip-version-check --no-cache-dir | cleanup | indent
+/app/.heroku/python/bin/pip install -r requirements.txt --exists-action=w --src=./.heroku/src --allow-all-external --disable-pip-version-check --no-cache-dir | cleanup | log-output | indent
 
 # Smart Requirements handling
 cp requirements.txt .heroku/python/requirements-declared.txt

bin/utils

@@ -11,6 +11,16 @@ indent() {
   sed "s/^/       /"
 }
 
+# Log output for warning detection
+log-output() (
+  while read LINE;
+  do
+    echo "$LINE"
+    echo "$LINE" >> "$WARNINGS_LOG"
+  done
+
+)
+
 # Clean up pip output
 cleanup() {
   sed -e 's/\.\.\.\+/.../g' | sed -e '/already satisfied/Id' | sed -e '/Overwriting/Id' | sed -e '/python executable/Id' | sed -e '/no previously-included files/Id'