Add prepare_release.sh helper script

1 files changed, 54 insertions, 0 deletions

diff --git a/prepare_release.sh b/prepare_release.sh
new file mode 100755
index 0000000000..f75732b228
--- /dev/null
+++ b/prepare_release.sh
@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+
+# This script prepares for a release. Run it with the release version as the first argument and it
+# will update version numbers, commit and add a signed tag.
+
+set -eu
+
+if [[ "$#" != "1" ]]; then
+    echo "Please give the release version as the first and only argument to this script."
+    echo "For example: '2018.1-beta3' for a beta release, or '2018.6' for a stable one."
+    exit 1
+fi
+VERSION=$1
+
+if [[ $(echo $VERSION | egrep '^[0-9]{4}\.[0-9]+(-(beta|alpha)[0-9]+)?$') == "" ]]; then
+    echo "Invalid version format. Please specify version as:"
+    echo "<YEAR>.<NUMBER>[-(beta|alpha)<NUMBER>]"
+    exit 1
+fi
+
+if [[ $(git diff --shortstat 2> /dev/null | tail -n1) != "" ]]; then
+    echo "Dirty working directory! Will not accept that for an official release."
+    exit 1
+fi
+
+if [[ $(grep $VERSION CHANGELOG.md) == "" ]]; then
+    echo "It looks like you did not add $VERSION to the changelog?"
+    echo "Please make sure the changelog is up to date and correct before you proceed."
+    exit 1
+fi
+
+echo "Updating version in package.json..."
+SEMVER_VERSION=`echo $VERSION | sed -re 's/($|-.*)/.0\1/g'`
+sed -i -re "s/\"version\": \"[^\"]+\",/\"version\": \"$SEMVER_VERSION\",/g" package.json
+
+echo "Commiting package.json change to git..."
+git commit -S package.json -m "Updating version in package.json"
+
+echo "Tagging current git commit with release tag $VERSION..."
+git tag -s $VERSION -m $VERSION
+
+
+echo "==================================================="
+echo "DONE preparing for a release! Now do the following:"
+echo " 1. Push the commit and tag created by this script"
+echo "    after you have verified they are correct"
+echo "     $ git push"
+echo "     $ git push origin $VERSION"
+echo " 2. On each platform where you want to create a"
+echo "    release artifact, check out the tag and build:"
+echo "     $ git fetch"
+echo "     $ git checkout $VERSION"
+echo "     $ ./build.sh"
+echo "==================================================="