From 2c854938b91e96126aae60470ea6ca9fab71e307 Mon Sep 17 00:00:00 2001
From: Ihor Kalnytskyi <ihor@kalnytskyi.com>
Date: Sun, 5 Oct 2025 00:45:30 +0300
Subject: [PATCH] Add PostgreSQL 18

PostgreSQL 18 is the most recent version of the PostgreSQL database,
released on September 25, 2025. It just makes sense to keep up with the
upstream versions if we can, hence this patch.
---
 .github/workflows/ci.yml |  3 ++-
 README.md                | 14 +++++++-------
 action.yml               |  8 ++++----
 3 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c84e9a31..03e0479a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -55,7 +55,7 @@ jobs:
           CERTIFICATE_PATH: ${{ steps.postgres.outputs.certificate-path }}
           EXPECTED_CONNECTION_URI: postgresql://postgres:postgres@localhost:5432/postgres
           EXPECTED_SERVICE_NAME: postgres
-          EXPECTED_SERVER_VERSION: "17"
+          EXPECTED_SERVER_VERSION: "18"
           EXPECTED_SSL: false
 
   parametrized:
@@ -78,6 +78,7 @@ jobs:
           - "14"
           - "15"
           - "16"
+          - "17"
     steps:
       - uses: actions/checkout@v4
 
diff --git a/README.md b/README.md
index b7443eeb..a72da3b9 100644
--- a/README.md
+++ b/README.md
@@ -19,13 +19,13 @@ key features:
 
 #### Inputs
 
-| Key              | Value                                                                              | Default     |
-|------------------|------------------------------------------------------------------------------------|-------------|
-| username         | The username of the user to setup.                                                 | `postgres`  |
-| password         | The password of the user to setup.                                                 | `postgres`  |
-| database         | The database name to setup and grant permissions to created user.                  | `postgres`  |
-| port             | The server port to listen on.                                                      | `5432`      |
-| postgres-version | The PostgreSQL major version to install. Supported values: "14", "15", "16", "17". | `17`        |
+| Key              | Value                                                                                    | Default     |
+|------------------|------------------------------------------------------------------------------------------|-------------|
+| username         | The username of the user to setup.                                                       | `postgres`  |
+| password         | The password of the user to setup.                                                       | `postgres`  |
+| database         | The database name to setup and grant permissions to created user.                        | `postgres`  |
+| port             | The server port to listen on.                                                            | `5432`      |
+| postgres-version | The PostgreSQL major version to install. Supported values: "14", "15", "16", "17", "18". | `18`        |
 
 #### Outputs
 
diff --git a/action.yml b/action.yml
index e90fad2f..e5ebe32e 100644
--- a/action.yml
+++ b/action.yml
@@ -22,8 +22,8 @@ inputs:
     default: "5432"
     required: false
   postgres-version:
-    description: The PostgreSQL major version to install. Either "14", "15", "16" or "17".
-    default: "17"
+    description: The PostgreSQL major version to install. Either "14", "15", "16", "17" or "18".
+    default: "18"
   ssl:
     description: When "true", encrypt connections using SSL (TLS).
     default: "false"
@@ -43,8 +43,8 @@ runs:
   steps:
     - name: Install PostgreSQL
       run: |
-        if [[ ! "${{ inputs.postgres-version }}" =~ ^(14|15|16|17)$ ]]; then
-          echo "::error::postgres-version must be one of: 14, 15, 16, 17."
+        if [[ ! "${{ inputs.postgres-version }}" =~ ^(14|15|16|17|18)$ ]]; then
+          echo "::error::postgres-version must be one of: 14, 15, 16, 17, 18."
           exit 1
         fi