Add `bin/make-snapshot.sh`

bin/make-snapshot.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+set -xe
+
+BRANCH="$1"
+
+if [ -z $BRANCH ]; then
+  echo "USAGE: $0 <branch>"
+  echo " e.g.: $0 snapshot/nightly"
+  exit 1
+fi
+
+LATEST_TAG=$(git for-each-ref refs/tags --sort=-taggerdate --format='%(refname)' --count=1 | awk -F/ '{print $3}')
+TAGGED_BRANCH="stable/${LATEST_TAG:1}"
+NEXT_VERSION=$(echo "${LATEST_TAG:1}" | awk -F. -v OFS=. '{$3=0}; {++$2}; {print}')
+
+git branch -D $BRANCH
+git checkout -b $BRANCH
+git merge --no-ff -m "Merge latest stable, to make the latest tag reachable" $TAGGED_BRANCH
+
+composer require --no-update \
+  ipl/html:@dev \
+  ipl/i18n:@dev \
+  ipl/orm:@dev \
+  ipl/sql:@dev \
+  ipl/stdlib:@dev \
+  ipl/validator:@dev \
+  ipl/web:@dev
+
+git commit -a -m "Require dev-master everywhere"
+bin/make-release.sh "$NEXT_VERSION-dev" --no-checkout