Download pypy-nightly (trunk and py3.7) and install to virtualenvs in ~/.virtualenvs

pypy-nightly.sh

#!/bin/bash
set -e

# Download PyPy nightly builds and create a virtualenvs in ~./.virtualenvs

# Valid branch names include trunk py3.6 py3.7
BRANCHES=(trunk py3.7)
PLATFORM=linux64
VARIANT=pypy-c-jit
BUILD=${VARIANT}-latest-${PLATFORM}
BUILD_ARTIFACT=${BUILD}.tar.bz2

bold=$(tput bold)
normal=$(tput sgr0)


optionally_download()
{
  # Download artifact unless already cached.
  local BUILD_URL=$1
  local BUILD_ARTIFACT=$2
  if [ -f "${BUILD_ARTIFACT}" ]; then
    # Curls -z "Resume" trumps -I "If-Modified", so delete any previous file manually:
    local LAST_MODIFIED=$(date +%s --date="`curl -sI ${BUILD_URL} | grep 'Last-Modified' | cut -c16-`")
    local LAST_DOWNLOADED=$(stat -c %Y ${BUILD_ARTIFACT})
    if [ $LAST_MODIFIED -gt $LAST_DOWNLOADED ]; then
        rm ${BUILD_ARTIFACT} | /bin/true
    fi
  fi
  
  local CURL_ARGS="-#LOC - ${BUILD_URL}"  
  if [ -f "${BUILD_ARTIFACT}" ]; then
      CURL_ARGS="-z ${BUILD_ARTIFACT} ${CURL_ARGS}"
  fi
  curl ${CURL_ARGS}
}



function download_builds()
{
  for BRANCH in "${BRANCHES[@]}"
  do    
    local DEST_DIR=~/pypy-nightly/${BRANCH}
    local BUILD_URL=http://buildbot.pypy.org/nightly/${BRANCH}/${BUILD_ARTIFACT}
    
    mkdir -p ${DEST_DIR}
    cd ${DEST_DIR}
    optionally_download ${BUILD_URL} ${BUILD_ARTIFACT}
  done
}


function create_environments()
{
  for BRANCH in "${BRANCHES[@]}"
  do    
    local DEST_DIR=~/pypy-nightly/${BRANCH}
    local VENV=~/.virtualenvs/pypy-nightly-${BRANCH}
    local VENV_BIN=${VENV}/bin/python

    cd ${DEST_DIR}
    printf "${bold}%s${normal}" "${BRANCH} ⌛"
    
    tar -jxpf ${BUILD_ARTIFACT}
    local BUILD_ID=$(tar -tf ${BUILD_ARTIFACT} | head -1)
    ln ${BUILD_ID} ${BUILD} -sf
    ln ${BUILD_ID} current -sf
    set -- ${DEST_DIR}/${BUILD}/bin/pypy*
    local PYPY_BIN=$1
    
    printf "\b%-30s" "${PYPY_BIN/#$HOME/\~} ⌛"
    /usr/bin/virtualenv ${VENV} -p ${PYPY_BIN} -q --clear | true
    ${VENV_BIN} -m pip install setuptools -U  -q 2>&1 | true
    printf "\b\b-> %s\n" "${VENV_BIN/#$HOME/\~}"
  done
}


download_builds
create_environments

Support separate versions of pypy.

Manually check last modified time.

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