ci: add golangci-lint + test workflows, smoke tests, bump to Go 1.26

.github/workflows/golangci-lint.yml

@@ -0,0 +1,19 @@
+name: golangci-lint
+on: [ push, pull_request ]
+jobs:
+  golangci:
+    name: lint
+    # run job on all pushes OR external PR, not both
+    if: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+      - name: Install Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: 1.26.x
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v9
+        with:
+          version: v2.11.4

.github/workflows/test.yml

@@ -0,0 +1,40 @@
+name: Test
+on: [ push, pull_request ]
+jobs:
+  test:
+    # run job on all pushes OR external PR, not both
+    if: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+      - name: Install Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: 1.26.x
+          cache: true
+      - name: gofmt && go mod tidy
+        if: matrix.os == 'ubuntu-latest'
+        shell: bash
+        run: |
+          go mod tidy -compat=1.26
+          test -z "$(gofmt -d .)" || (gofmt -d . && false)
+          test -z "$(git status --porcelain)" || (git status; git diff && false)
+      - name: Test
+        run: go test -count=1 -v ./...
+      - name: Test with -race
+        run: go test -race -count=1 -v ./...
+      - name: Build
+        run: go build .
+      - name: Upload build
+        uses: actions/upload-artifact@v7
+        with:
+          name: awl-bootstrap-node-${{ runner.os }}
+          path: |
+            awl-bootstrap-node
+            awl-bootstrap-node.exe
+          if-no-files-found: error

.golangci.yml

@@ -0,0 +1,88 @@
+version: "2"
+run:
+  go: "1.26"
+
+linters:
+  default: none
+  enable:
+    - asciicheck
+    - bodyclose
+    - copyloopvar
+    - dogsled
+    - dupl
+    - errcheck
+    - exhaustive
+    - goconst
+    - gocritic
+    - gocyclo
+    - goprintffuncname
+    - gosec
+    - govet
+    - ineffassign
+    - mirror
+    - misspell
+    - nakedret
+    - nestif
+    - nilnil
+    - nolintlint
+    - nosprintfhostport
+    - prealloc
+    - rowserrcheck
+    - sqlclosecheck
+    - staticcheck
+    - unconvert
+    - unparam
+    - unused
+    - wastedassign
+    - whitespace
+
+  settings:
+    exhaustive:
+      default-signifies-exhaustive: true
+    gocritic:
+      disabled-checks:
+        - hugeParam
+        - rangeValCopy
+        - ifElseChain
+      enabled-tags:
+        - diagnostic
+        - performance
+    prealloc:
+      simple: true
+      range-loops: true
+      for-loops: true
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    rules:
+      - linters:
+          - errcheck
+          - goconst
+        path: _test\.go
+      - linters:
+          - gosec
+        text: 'G101:'
+      - linters:
+          - gosec
+        text: 'G404:'
+      - linters:
+          - gosec
+        text: 'G115:'
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+
+formatters:
+  enable:
+    - gofmt
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

application.go

@@ -18,7 +18,7 @@ import (
 	"github.com/libp2p/go-libp2p/core/network"
 	"github.com/libp2p/go-libp2p/core/peer"
 	"github.com/libp2p/go-libp2p/core/peerstore"
-	"github.com/libp2p/go-libp2p/p2p/host/peerstore/pstoreds"
+	"github.com/libp2p/go-libp2p/p2p/host/peerstore/pstoreds" //nolint:staticcheck // disk-backed peerstore is intentional for bootstrap-node; will migrate when libp2p removes it
 	"github.com/libp2p/go-libp2p/p2p/host/peerstore/pstoremem"
 	rcmgr "github.com/libp2p/go-libp2p/p2p/host/resource-manager"
 	"github.com/libp2p/go-libp2p/p2p/protocol/circuitv2/relay"
@@ -41,6 +41,7 @@ type Application struct {
 
 	Api       *api.Handler
 	p2pServer *p2p.P2p
+	datastore ds.Batching
 }
 
 func New() *Application {
@@ -53,6 +54,7 @@ func (a *Application) Init(ctx context.Context) error {
 	if err != nil {
 		return fmt.Errorf("could not make p2p host config: %s", err)
 	}
+	a.datastore = p2pHostConfig.DHTDatastore
 	p2pSrv := p2p.NewP2p(ctx)
 	host, err := p2pSrv.InitHost(p2pHostConfig)
 	if err != nil {
@@ -145,6 +147,12 @@ func (a *Application) Close() {
 			a.logger.Errorf("closing p2p server: %v", err)
 		}
 	}
+	if a.datastore != nil {
+		err := a.datastore.Close()
+		if err != nil {
+			a.logger.Errorf("closing datastore: %v", err)
+		}
+	}
 }
 
 func (a *Application) makeP2pHostConfig() (p2p.HostConfig, error) {