pre-commit

#!/bin/sh
#
# Git pre commit hook which find the next PR number and replace occurences of
# GUESSPR in the changelog

files_modified=`git diff --cached --name-only --diff-filter=ACM`

if [[ $files_modified == *"CHANGES.rst"* ]]; then
    ghurl="https://api.github.com/repos/astropy/astropy/issues?state=all&sort=created&direction=desc&per_page=1"
    echo "Fetching PR number from $ghurl"
    prnumber=$(curl -s $ghurl | \
        python -c "import sys, json; print(json.load(sys.stdin)[0]['number'] + 1)")
    sed -i "s/GUESSPR/#$prnumber/" CHANGES.rst && echo "Wrote PR number :)" || echo "FAILED"
    git add CHANGES.rst
fi