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metamask-extension/development/auto-changelog.sh

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#! /bin/bash
# update tags
git fetch --tags
# get origin
URL='https://github.com/MetaMask/metamask-extension'
# get git logs from last tag until HEAD, pretty by 'subject::body' filtered by grep for PRs made with Github squash merge or Github regular merge
LOG=$(git log $(git describe --tags $(git rev-list --tags --max-count=1))..HEAD --pretty="%s::%b" --reverse --grep="Merge pull request #" --grep="(#");
while read -r line; do
# get git log subject
SUBJECT=$(echo $line | sed -E 's/(.*):{2}(.*)/\1/')
# get git log PR id, PR made with Github squash merge or Github regular merge
PR=$(echo $SUBJECT | sed 's/^.*(#\([^&]*\)).*/\1/' | sed 's/^.*#\([^&]*\) from.*/\1/')
# if PR made with Github squash merge, subject is the body
if [ -z "$(echo $line | sed -E 's/(.*):{2}(.*)/\2/')" ]; then
BODY=$(echo $SUBJECT | sed "s/(#$PR)//g"); else
BODY=$(echo $line | sed -E 's/(.*):{2}(.*)/\2/')
fi
# add entry to CHANGELOG
if [[ "$OSTYPE" == "linux-gnu" ]]; then
sed -i'' '/## Current Develop Branch/a\
- [#'"$PR"']('"$URL"'/pull/'"$PR"'): '"$BODY"''$'\n' CHANGELOG.md; else
sed -i '' '/## Current Develop Branch/a\
- [#'"$PR"']('"$URL"'/pull/'"$PR"'): '"$BODY"''$'\n' CHANGELOG.md;
fi
done <<< "$LOG"
echo 'CHANGELOG updated'