1 files changed, 26 insertions, 0 deletions
diff --git a/auto-changelog.sh b/auto-changelog.sh
new file mode 100755
index 000000000..f9f577ade
--- /dev/null
+++ b/auto-changelog.sh
@@ -0,0 +1,26 @@
+#! /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'