From dd7a238eb8f1cca52666a777118b7d12584e7cc4 Mon Sep 17 00:00:00 2001
From: Jixun Wu <jixun.moe@gmail.com>
Date: Sat, 10 Jun 2023 21:59:08 +0100
Subject: [PATCH] ci: automatically promote latest main build as published.

---
 scripts/deploy.sh | 42 ++++++++++++++++++++++++++++++++++--------
 1 file changed, 34 insertions(+), 8 deletions(-)

diff --git a/scripts/deploy.sh b/scripts/deploy.sh
index 1e163ae..ea7a1ca 100755
--- a/scripts/deploy.sh
+++ b/scripts/deploy.sh
@@ -6,11 +6,8 @@ SCRIPTS_DIR="$(dirname "${BASH_SOURCE[0]}")"
 __netlify_upload() {
     local branch="$BRANCH_NAME"
     local production="$DEPLOY_PRODUCTION"
+    [[ "$BRANCH_NAME" = "main" ]] && production="true"
     [[ -z "$production" ]] && production="false"
-    if [[ "$BRANCH_NAME" = "main" ]]; then
-        production="true"
-        branch=""
-    fi
 
     curl -sL \
         -H "Content-Type: application/zip" \
@@ -26,6 +23,23 @@ __netlify_get_deploy() {
         "https://api.netlify.com/api/v1/deploys/${deploy_id}"
 }
 
+# Publish a deployment to main URL.
+__netlify_promote() {
+    local deploy_id="$1"
+    curl -sL \
+        -H "Authorization: Bearer ${NETLIFY_API_KEY}" \
+        -H "Content-Type: application/json" \
+        --data "{}" \
+        "https://api.netlify.com/api/v1/sites/${NETLIFY_SITE_ID}/deploys/${deploy_id}/restore"
+}
+
+__netlify_get_error() {
+    local error_message
+    error_message="$(json_get "$upload_resp" message)"
+    [[ "$error_message" = "null" ]] && error_message="$(json_get "$upload_resp" error_message)"
+    echo -n "$error_message"
+}
+
 json_get() {
     local json_body="$1"
     shift
@@ -37,9 +51,7 @@ deploy_netlify() {
     local upload_resp
     upload_resp="$(__netlify_upload "$1")"
 
-    local error_message
-    error_message="$(json_get "$upload_resp" message)"
-    [[ "$error_message" = "null" ]] && error_message="$(json_get "$upload_resp" error_message)"
+    local error_message="$(__netlify_get_error "$upload_resp")"
 
     if [[ "$error_message" != "null" ]]; then
         echo "Deploy to netlify failed:"
@@ -60,7 +72,7 @@ deploy_netlify() {
             echo "  * main url:  $(json_get "$deploy_resp" 'ssl_url')"
             echo "  * branch:    $(json_get "$deploy_resp" 'deploy_ssl_url')"
             echo "  * permalink: $(json_get "$deploy_resp" 'links' 'permalink')"
-            return 0
+            break
             ;;
         error)
             echo "Deploy to netlify failed:"
@@ -73,6 +85,20 @@ deploy_netlify() {
             ;;
         esac
     done
+
+    if [[ "$BRANCH_NAME" = "main" ]]; then
+        echo "Promoting latest main build..."
+        local promote_resp="$(__netlify_promote "$(json_get "$deploy_resp" 'id')")"
+        error_message="$(__netlify_get_error "$promote_resp")"
+
+        if [[ "$error_message" != "null" ]]; then
+            echo "Promote netlify deploy failed:"
+            echo "  * ${error_message}"
+            return 1
+        else
+            echo 'Deoployed to main url.'
+        fi
+    fi
 }
 
 # For deployment, we care a bit less