Add list of commits as changelog between nightly builds (#4654)

scripts/flip-files-to-nightly.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 
 export VERSION=$(date +'%-y.%-m.%-d')
+export TAG="nightly-v$VERSION"
+export PREVIOUS_TAG=$(git describe --tags --match="nightly-v[0-9]*" --abbrev=0)
 export COMMIT=$(git rev-parse --short HEAD)
 
 # package.json
@@ -13,7 +15,7 @@ yq -i '.publish[0].url = "https://dl.zoo.dev/releases/modeling-app/nightly"' ele
 yq -i '.appId = "dev.zoo.modeling-app-nightly"' electron-builder.yml
 
 # Release notes
-echo "Nightly build $VERSION (commit $COMMIT)" > release-notes.md
+./scripts/get-nightly-changelog.sh > release-notes.md
 
 # icons
 cp assets/icon-nightly.png assets/icon.png

scripts/get-nightly-changelog.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+echo "## What's Changed"
+git log ${PREVIOUS_TAG}..HEAD --oneline --pretty=format:%s | grep -v Bump | awk '{print "* "toupper(substr($0,0,1))substr($0,2)}'
+echo ""
+echo "**Full Changelog**: https://github.com/KittyCAD/modeling-app/compare/${PREVIOUS_TAG}...${TAG}"