Metrics (#657)

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

* using pipenv anyway
Signed-off-by: Kenneth Reitz <me@kennethreitz.org>

* instrument bad failures
Signed-off-by: Kenneth Reitz <me@kennethreitz.org>

* if not
Signed-off-by: Kenneth Reitz <me@kennethreitz.org>

bin/steps/collectstatic

@@ -39,6 +39,8 @@ if [ ! "$DISABLE_COLLECTSTATIC" ] && [ -f "$MANAGE_FILE" ] && [ "$DJANGO_INSTALL
     # Display a warning if collectstatic failed.
     [ "$COLLECTSTATIC_STATUS" -ne 0 ] && {
 
+        mcount "failure.collectstatic"
+
         echo
         echo " !     Error while running '$ python $MANAGE_FILE collectstatic --noinput'."
         echo "       See traceback above for details."

bin/steps/pip-install

@@ -19,6 +19,15 @@ if [ ! "$SKIP_PIP_INSTALL" ]; then
     # Measure that we're using pip.
     mcount "tool.pip"
 
+    # Count expected build failures.
+    if grep -q 'wsgiref' requirements.txt; then
+        mcount "failure.wsgiref"
+    fi
+    if grep -q '==0.0.0' requirements.txt; then
+        mcount "failure.none-version"
+    fi
+
+
     /app/.heroku/python/bin/pip install -r "$BUILD_DIR/requirements.txt" --exists-action=w --src=/app/.heroku/src --disable-pip-version-check --no-cache-dir 2>&1 | tee "$WARNINGS_LOG" | cleanup | indent
     PIP_STATUS="${PIPESTATUS[0]}"
     set -e

bin/steps/pip-uninstall

@@ -11,7 +11,10 @@ if [ ! "$SKIP_PIP_INSTALL" ]; then
 
     cp .heroku/python/requirements-declared.txt requirements-declared.txt
 
-    pip-diff --stale requirements-declared.txt requirements.txt --exclude setuptools pip wheel > .heroku/python/requirements-stale.txt
+
+    if ! pip-diff --stale requirements-declared.txt requirements.txt --exclude setuptools pip wheel > .heroku/python/requirements-stale.txt; then
+      mount "failure.bad-requirements"
+    fi
 
     rm -fr requirements-declared.txt
 

bin/steps/pipenv

@@ -14,6 +14,7 @@ if [[ -f Pipfile.lock ]]; then
                 # echo "To disable this functionality, run the following command:"
                 # echo ""
                 # echo "    $ heroku config:set PIPENV_ALWAYS_INSTALL=1" | indent
+                mcount "tool.pipenv"
                 export SKIP_PIPENV_INSTALL=1
                 export SKIP_PIP_INSTALL=1
             fi