Bump Go to 1.26 and modernize codebase

- Bump Go version to 1.26 in go.mod and all Dockerfiles (pg15/16/17)
- Run go fix: replace interface{} with any, use strings.SplitSeq, fmt.Appendf, drop legacy // +build constraints
- Fix all golangci-lint issues: add missing package comments, fix exported function comment format
- Add unparam linter
- Improve CI: replace create trigger with push tags v*; build Docker images on pull requests without pushing

Author: dangra

.github/dependabot.yml

@@ -1,8 +1,26 @@
-# Please see the documentation for all configuration options:
-# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
 version: 2
 updates:
+  - package-ecosystem: "gomod"
+    directory: "/"
+    labels:
+      - "dependencies"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
+    groups:
+      tracing:
+        patterns:
+          - "go.opentelemetry.io/*"
+      golangx:
+        patterns:
+          - "golang.org/x/*"
+
   - package-ecosystem: "github-actions"
     directory: "/"
+    labels:
+      - "dependencies"
     schedule:
       interval: "weekly"
+    cooldown:
+      default-days: 7

.github/workflows/checks.yml

@@ -0,0 +1,41 @@
+name: "Checks"
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: "Build and test"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-go@v6
+        with:
+          go-version-file: "go.mod"
+
+      - name: Run unit tests
+        run: go test -v ./...
+
+      - name: Build binaries
+        run: go install ./cmd/...
+
+  precommit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-go@v6
+        with:
+          go-version-file: "go.mod"
+
+      - uses: j178/prek-action@v1
+        with:
+          extra-args: --all-files --stage=manual
+
+      - uses: golangci/golangci-lint-action@v9
+        with:
+          version: latest
+
+      - name: generate command strings
+        run: go generate ./... && git diff --exit-code

.github/workflows/ci.yaml

@@ -1,142 +1,136 @@
 name: Release
 
 on:
-  create:
+  push:
+    tags:
+      - 'v*'
+  pull_request:
 
 jobs:
   release:
-    if: ${{ startsWith(github.ref, 'refs/tags/v') }}
     runs-on: ubuntu-latest
 
     steps:
-      -
-        name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-      -
-        name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+      - uses: docker/setup-qemu-action@v3
+      - uses: docker/setup-buildx-action@v3
         with:
           version: v0.9.1
-      -
-        name: Login to DockerHub
-        uses: docker/login-action@v3
+
+      - uses: docker/login-action@v3
+        if: github.event_name != 'pull_request'
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
+
       - uses: actions/checkout@v6
-        with:
-          fetch-depth: 0
-      -
-        name: "Fetch latest tag"
-        id: get-latest-tag
+      - id: get-latest-tag
+        if: github.event_name != 'pull_request'
         uses: "WyriHaximus/github-action-get-previous-tag@v2"
-      -
-        name: Build and push Postgres 15
+
+      - name: Build and push Postgres 15
         id: docker_build_15
         uses: docker/build-push-action@v6
         with:
           build-args: |
             PG_VERSION=15.10
             PG_MAJOR_VERSION=15
-            VERSION=${{ steps.get-latest-tag.outputs.tag }}
+            VERSION=${{ steps.get-latest-tag.outputs.tag || 'pr-build' }}
           context: .
           file: ./pg15/Dockerfile
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
           tags: |
             flyio/postgres-flex:15
             flyio/postgres-flex:15.10
-      -
-        name: Build and push Postgres 15 Timescale DB
+
+      - name: Build and push Postgres 15 Timescale DB
         id: docker_build_15_timescaledb
         uses: docker/build-push-action@v6
         with:
           build-args: |
             PG_VERSION=15.10
             PG_MAJOR_VERSION=15
-            VERSION=${{ steps.get-latest-tag.outputs.tag }}
+            VERSION=${{ steps.get-latest-tag.outputs.tag || 'pr-build' }}
           context: .
           file: ./pg15/Dockerfile-timescaledb
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
           tags: |
             flyio/postgres-flex-timescaledb:15
             flyio/postgres-flex-timescaledb:15.10
 
-      -
-        name: Build and push Postgres 16
+      - name: Build and push Postgres 16
         id: docker_build_16
         uses: docker/build-push-action@v6
         with:
           build-args: |
             PG_VERSION=16.6
             PG_MAJOR_VERSION=16
-            VERSION=${{ steps.get-latest-tag.outputs.tag }}
+            VERSION=${{ steps.get-latest-tag.outputs.tag || 'pr-build' }}
           context: .
           file: ./pg16/Dockerfile
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
           tags: |
             flyio/postgres-flex:16
             flyio/postgres-flex:16.6
-      -
-        name: Build and push Postgres 16 Timescale DB
+
+      - name: Build and push Postgres 16 Timescale DB
         id: docker_build_16_timescaledb
         uses: docker/build-push-action@v6
         with:
           build-args: |
             PG_VERSION=16.6
             PG_MAJOR_VERSION=16
-            VERSION=${{ steps.get-latest-tag.outputs.tag }}
+            VERSION=${{ steps.get-latest-tag.outputs.tag || 'pr-build' }}
           context: .
           file: ./pg16/Dockerfile-timescaledb
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
           tags: |
             flyio/postgres-flex-timescaledb:16
             flyio/postgres-flex-timescaledb:16.6
 
-      -
-        name: Build and push Postgres 17
+      - name: Build and push Postgres 17
         id: docker_build_17
         uses: docker/build-push-action@v6
         with:
           build-args: |
             PG_VERSION=17.2
             PG_MAJOR_VERSION=17
-            VERSION=${{ steps.get-latest-tag.outputs.tag }}
+            VERSION=${{ steps.get-latest-tag.outputs.tag || 'pr-build' }}
           context: .
           file: ./pg17/Dockerfile
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
           tags: |
             flyio/postgres-flex:17
             flyio/postgres-flex:17.2
-      -
-        name: Build and push Postgres 17 Timescale DB
+
+      - name: Build and push Postgres 17 Timescale DB
         id: docker_build_17_timescaledb
         uses: docker/build-push-action@v6
         with:
           build-args: |
             PG_VERSION=17.2
             PG_MAJOR_VERSION=17
-            VERSION=${{ steps.get-latest-tag.outputs.tag }}
+            VERSION=${{ steps.get-latest-tag.outputs.tag || 'pr-build' }}
           context: .
           file: ./pg17/Dockerfile-timescaledb
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
           tags: |
             flyio/postgres-flex-timescaledb:17
             flyio/postgres-flex-timescaledb:17.2
-      -
-        name: Postgres 15 Image digest
+
+      - name: Postgres 15 Image digest
         run: echo ${{ steps.docker_build_15.outputs.digest }}
-      -
-        name: Postgres 15 TimescaleDB Image digest
+
+      - name: Postgres 15 TimescaleDB Image digest
         run: echo ${{ steps.docker_build_15_timescaledb.outputs.digest }}
-      -
-        name: Postgres 16 Image digest
+
+      - name: Postgres 16 Image digest
         run: echo ${{ steps.docker_build_16.outputs.digest }}
-      -
-        name: Postgres 16 TimescaleDB Image digest
+
+      - name: Postgres 16 TimescaleDB Image digest
         run: echo ${{ steps.docker_build_16_timescaledb.outputs.digest }}
-      -
-        name: Postgres 17 Image digest
+
+      - name: Postgres 17 Image digest
         run: echo ${{ steps.docker_build_17.outputs.digest }}
-      -
-        name: Postgres 17 TimescaleDB Image digest
+
+      - name: Postgres 17 TimescaleDB Image digest
         run: echo ${{ steps.docker_build_17_timescaledb.outputs.digest }}