build_changelog.sh

#!/bin/sh

# put the following line in `~/.config/build_changelog/config`:
# OAUTH_TOKEN=<github-personal-token>
source ~/.config/build_changelog/config

start=${1}
end=${2:-"develop"}
repo=$(git remote show origin \
       | grep "Fetch URL" \
       | sed -E 's#[ ]*Fetch URL:[^:]+:([a-zA-Z0-9_]+/[a-zA-Z0-9_]+)(.git)?#\1#')
prs=$(git log --oneline ${end}...${start} \
      | grep "Merge pull request" \
      | grep -v "release/v" \
      | sed -E 's/[^#]+#([0-9]+).*/\1/');

for pr in ${prs}; do
  curl -H "Authorization: token ${OAUTH_TOKEN}" https://api.github.com/repos/${repo}/pulls/${pr} 2> /dev/null \
  | grep '"title": ' \
  | sed -E "s/[ ]*\"title\":[ ]+\"(.*)\",/* \1 ([#${pr}])/"
done

echo

for pr in ${prs}; do
  echo "[#${pr}]: https://github.com/${repo}/pull/${pr}"
done