added pre-checkout hook that automatically should enter pre modes (#5837)

* added pre-checkout hook that automatically should enter pre modes for changesets

* aswitch to github CI action for changeset check

scripts/manage-pre-mode.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+
+# Detect the branch from argument
+BRANCH=$(echo "$1")
+
+PRE_PATH=".changeset/pre.json"
+
+pre_json_exists=false
+is_on_tag=false
+is_on_pre_mode=false
+
+grep -q '"mode": "pre"' "$PRE_PATH" && is_on_pre_mode=true || is_on_pre_mode=false
+
+if [ -f "$PRE_PATH" ]; then
+  pre_json_exists=true
+fi
+
+enter_pre_mode() {
+  local branch="$1"
+  local tag="$2"
+
+  grep -q '"tag": "'$tag'"' "$PRE_PATH" && is_on_tag=true || is_on_tag=false
+
+  if $is_on_tag && $pre_json_exists && $is_on_pre_mode; then
+    echo "You are already in pre mode for '$tag' on '$branch'"
+    exit 1
+  fi
+
+  npx changeset pre exit
+  npx changeset pre enter "$tag"
+
+  # Set needs_commit to true on github env
+  echo "needs_commit=true" >> $GITHUB_ENV
+
+  echo "Entered pre mode for '$branch' on '$tag'"
+}
+
+exit_pre_mode() {
+  local needs_exit=false
+
+  grep -q '"mode": "exit"' "$PRE_PATH" && needs_exit=false || needs_exit=true
+
+  if ! $needs_exit || ! $pre_json_exists; then
+    echo "You are not in pre mode"
+    exit 1
+  fi
+
+  npx changeset pre exit
+
+  # Set needs_commit to true on github env
+  echo "needs_commit=true" >> $GITHUB_ENV
+
+  echo "Exited pre mode"
+}
+
+case "$BRANCH" in
+  develop)
+    enter_pre_mode "develop" "pre"
+    ;;
+  next)
+    enter_pre_mode "next" "next"
+    ;;
+  main)
+    exit_pre_mode
+    ;;
+  *)
+    exit 1
+    ;;
+esac