basics of metrics (#374)

* basics of metrics

* pin to stdlib v2

* measure python installation size

* lots of additional metrics

* add old output methods

* $

* empty commit

bin/compile

@@ -15,6 +15,10 @@
 # Fail fast and fail hard.
 set -eo pipefail
 
+# Standard Library.
+export BPLOG_PREFIX="buildpack.python"
+export BUILDPACK_LOG_FILE=${BUILDPACK_LOG_FILE:-/dev/null}
+
 [ "$BUILDPACK_XTRACE" ] && set -o xtrace
 
 # Prepend proper path for virtualenv hackery. This will be deprecated soon.
@@ -137,10 +141,14 @@ if [[ $BUILD_DIR != '/app' ]]; then
 fi
 
 # Install Python.
+let start=$(nowms)
 source $BIN_DIR/steps/python
+mtime "python.install.time" "${start}"
 
 # Sanity check for setuptools/distribute.
+let start=$(nowms)
 source $BIN_DIR/steps/setuptools
+mtime "setuptools.install.time" "${start}"
 
 # Pipenv support.
 source $BIN_DIR/steps/pipenv
@@ -169,20 +177,28 @@ sub-env $BIN_DIR/steps/geo-libs
 source $BIN_DIR/steps/gdal
 
 # Install dependencies with Pip (where the magic happens).
+let start=$(nowms)
 source $BIN_DIR/steps/pip-install
+mtime "pip.install.time" "${start}"
 
 # Uninstall removed dependencies with Pip.
+let start=$(nowms)
 source $BIN_DIR/steps/pip-uninstall
+mtime "pip.uninstall.time" "${start}"
 
 # Support for NLTK corpora.
+let start=$(nowms)
 sub-env $BIN_DIR/steps/nltk
+mtime "nltk.download.time" "${start}"
 
 # Support for pip install -e.
 rm -fr $BUILD_DIR/.heroku/src
 deep-cp /app/.heroku/src $BUILD_DIR/.heroku/src
 
 # Django collectstatic support.
+let start=$(nowms)
 sub-env $BIN_DIR/steps/collectstatic
+mtime "collectstatic.time" "${start}"
 
 # Create .profile script for application runtime environment variables.
 set-env PATH '$HOME/.heroku/python/bin:$PATH'
@@ -219,3 +235,6 @@ cp -R .heroku/vendor $CACHE_DIR/.heroku/ &> /dev/null || true
 if [[ -d .heroku/src ]]; then
   cp -R .heroku/src $CACHE_DIR/.heroku/ &> /dev/null || true
 fi
+
+# Measure the size of the Python installation.
+mmeasure 'python.size' "$(measure-size)"

bin/steps/collectstatic

@@ -26,7 +26,7 @@ pip-grep -s requirements.txt django Django && DJANGO_INSTALLED=1
 if [ ! "$DISABLE_COLLECTSTATIC" ] && [ -f "$MANAGE_FILE" ] && [ "$DJANGO_INSTALLED" ]; then
     set +e
 
-    puts-cmd "python $MANAGE_FILE collectstatic --noinput"
+    puts-step "$ python $MANAGE_FILE collectstatic --noinput"
 
     # Run collectstatic, cleanup some of the noisy output.
     python $MANAGE_FILE collectstatic --noinput --traceback 2>&1 | sed '/^Post-processed/d;/^Copying/d;/^$/d' | indent

bin/steps/python

@@ -25,6 +25,8 @@ if [ ! "$SKIP_INSTALL" ]; then
     mkdir -p .heroku/python
 
     curl https://lang-python.s3.amazonaws.com/$STACK/runtimes/$PYTHON_VERSION.tar.gz -s | tar zxv -C .heroku/python &> /dev/null
+    mcount "version.python.$PYTHON_VERSION"
+
     if [[ $? != 0 ]] ; then
       puts-warn "Requested runtime ($PYTHON_VERSION) is not available for this stack ($STACK)."
       puts-warn "Aborting.  More info: https://devcenter.heroku.com/articles/python-support"

bin/utils

@@ -1,5 +1,12 @@
+#!/usr/bin/env bash
 shopt -s extglob
 
+# The standard library.
+if [[ ! -f  /tmp/stdlib.sh ]]; then
+  curl -s https://raw.githubusercontent.com/heroku/buildpack-stdlib/v2/stdlib.sh > /tmp/stdlib.sh
+fi
+source /tmp/stdlib.sh
+
 if [ $(uname) == Darwin ]; then
     sed() { command sed -l "$@"; }
 else
@@ -11,16 +18,12 @@ indent() {
   sed "s/^/       /"
 }
 
+
 # Clean up pip output
 cleanup() {
   sed -e 's/\.\.\.\+/.../g' | sed -e '/already satisfied/Id' | sed -e '/No files were found to uninstall/Id' | sed -e '/Overwriting/Id' | sed -e '/python executable/Id' | sed -e '/no previously-included files/Id'
 }
 
-# Buildpack Indented line.
-puts-line() {
-  echo "       $@"
-}
-
 # Buildpack Steps.
 puts-step() {
   echo "-----> $@"
@@ -31,28 +34,6 @@ puts-warn() {
   echo " !     $@"
 }
 
-# Buildpack Commands.
-puts-cmd() {
-  echo "     $ $@"
-}
-
-# Usage: $ set-env key value
-set-env() {
-  echo "export $1=$2" >> $PROFILE_PATH
-  echo "export $1=$2" >> $EXPORT_PATH
-}
-
-# Usage: $ set-default-env key value
-set-default-env() {
-  echo "export $1=\${$1:-$2}" >> $PROFILE_PATH
-  echo "export $1=\${$1:-$2}" >> $EXPORT_PATH
-}
-
-# Usage: $ un-set-env key
-un-set-env() {
-  echo "unset $1" >> $PROFILE_PATH
-}
-
 # Does some serious copying.
 deep-cp() {
   declare source="$1" target="$2"
@@ -69,21 +50,6 @@ deep-cp() {
   )
 }
 
-# Does some serious moving.
-deep-mv() {
-  deep-cp "$1" "$2"
-  deep-rm "$1"
-}
-
-# Does some serious deleting.
-deep-rm() {
-  # subshell to avoid surprising caller with shopts.
-  (
-    shopt -s dotglob
-    rm -rf "$1"/!(.curlrc|.netrc|tmp|.|..)
-  )
-}
-
 
 sub-env() {
 
@@ -108,3 +74,8 @@ sub-env() {
   )
 }
 
+# Measure the size of the Python installation.
+measure-size() {
+  echo "$((du -s .heroku/python 2>/dev/null || echo 0) | awk '{print $1}')"
+}
+

bin/warnings

@@ -7,6 +7,7 @@ old-platform() {
     puts-warn "This caused the security warning you saw above during the 'pip install' step."
     puts-warn "We recommend '$RECOMMENDED_PYTHON_VERSION', which you can specify in a 'runtime.txt' file."
     puts-warn "  -- Much Love, Heroku."
+    mcount 'warnings.python.old'
   fi
 }
 
@@ -16,6 +17,7 @@ pylibmc-missing() {
     puts-warn "Hello! There was a problem with your build related to libmemcache."
     puts-warn "The Python library 'pylibmc' must be explicitly specified in 'requirements.txt' in order to build correctly."
     puts-warn "Once you do that, everything should work as expected.   -- Much Love, Heroku."
+    mcount 'warnings.libmemcache'
   fi
 }
 
@@ -27,6 +29,7 @@ scipy-included() {
     puts-warn "There is, however, a buildpack available that makes it possible to use it on Heroku."
     puts-warn "You can learn more here:  https://devcenter.heroku.com/articles/python-c-deps"
     puts-warn "Sorry for the inconvenience.   -- Much Love, Heroku."
+    mcount 'warnings.scipy'
   fi
 }
 
@@ -37,6 +40,18 @@ distribute-included() {
     puts-warn "This library is automatically installed by Heroku and shouldn't be in"
     puts-warn "Your requirements.txt file. This can cause unexpected behavior."
     puts-warn "  -- Much Love, Heroku."
+    mcount 'warnings.distribute'
+  fi
+}
+
+six-included() {
+  if grep -qi 'Running setup.py install for six' "$WARNINGS_LOG"; then
+    echo
+    puts-warn "Hello! Your requirements.txt file contains the six package."
+    puts-warn "This library is automatically installed by Heroku and shouldn't be in"
+    puts-warn "Your requirements.txt file. This can cause unexpected behavior."
+    puts-warn "  -- Much Love, Heroku."
+    mcount 'warnings.six'
   fi
 }
 
@@ -45,5 +60,6 @@ show-warnings() {
   pylibmc-missing
   scipy-included
   distribute-included
+  six-included
 }