chore: upgrade Go, golangci-lint and CI deps (#5)

Upgrade main development to use Go 1.23, while still running CI against 1.20 and later.

Also update golangci-lint to v2.

.github/workflows/ci.yml

@@ -1,21 +1,20 @@
 ---
 name: CI
-on: [push, pull_request]
+on: push
 
 jobs:
   lint:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: "1.20"
+          go-version-file: go.mod
-          cache: false
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v4
+        uses: golangci/golangci-lint-action@4afd733a84b1f43292c63897423277bb7f4313a9 # v8.0.0
         with:
-          version: v1.56
+          version: v2.1
         env:
           VERBOSE: "true"
 
@@ -23,10 +22,10 @@ jobs:
     name: Tidy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: "1.20"
+          go-version-file: go.mod
       - name: Check if mods are tidy
         run: make check-tidy
 
@@ -34,12 +33,12 @@ jobs:
     name: Coverage
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
-          go-version: "1.20"
+          go-version-file: go.mod
       - name: Publish coverage
-        uses: paambaati/codeclimate-action@v5.0.0
+        uses: paambaati/codeclimate-action@f429536ee076d758a24705203199548125a28ca7 # v9.0.0
         env:
           VERBOSE: "true"
           GOMAXPROCS: 4
@@ -59,10 +58,12 @@ jobs:
           - "1.20"
           - "1.21"
           - "1.22"
+          - "1.23"
+          - "1.24"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
         with:
           go-version: ${{ matrix.go_version }}
       - name: Run tests
@@ -75,7 +76,7 @@ jobs:
       release_created: ${{ steps.release-please.outputs.release_created }}
       version: ${{ steps.release-please.outputs.version }}
     steps:
-      - uses: jimeh/release-please-manifest-action@v1
+      - uses: jimeh/release-please-manifest-action@bfd8923580a274363ff9fbaf6d07484fbc8d9c6e #v2.0.0
         id: release-please
         with:
           app-id: ${{ secrets.RELEASE_BOT_APP_ID }}

.golangci.yml

@@ -1,29 +1,10 @@
-linters-settings:
+---
-  funlen:
+version: "2"
-    lines: 100
+run:
-    statements: 150
+  modules-download-mode: readonly
-  goconst:
+  allow-parallel-runners: true
-    min-occurrences: 5
-    ignore-strings: "^ format $"
-  gocyclo:
-    min-complexity: 20
-  golint:
-    min-confidence: 0
-  govet:
-    check-shadowing: true
-    enable-all: true
-    disable:
-      - fieldalignment
-  lll:
-    line-length: 80
-    tab-width: 4
-  maligned:
-    suggest-new: true
-  misspell:
-    locale: US
-
 linters:
-  disable-all: true
+  default: none
   enable:
     - asciicheck
     - bodyclose
@@ -31,18 +12,14 @@ linters:
     - errcheck
     - errorlint
     - exhaustive
-    - exportloopref
     - funlen
     - gochecknoinits
     - goconst
     - gocritic
     - gocyclo
     - godot
-    - gofumpt
-    - goimports
     - goprintffuncname
     - gosec
-    - gosimple
     - govet
     - importas
     - ineffassign
@@ -60,33 +37,63 @@ linters:
     - sqlclosecheck
     - staticcheck
     - tparallel
-    - typecheck
     - unconvert
     - unparam
     - unused
     - wastedassign
     - whitespace
-
+  settings:
-issues:
+    funlen:
-  exclude-rules:
+      lines: 100
-    - path: "_test\\.go"
+      statements: 150
-      linters:
+    goconst:
-        - funlen
+      min-occurrences: 5
-        - dupl
+    gocyclo:
-    - source: "^//go:generate "
+      min-complexity: 20
-      linters:
+    govet:
-        - lll
+      disable:
-    - source: "`json:"
+        - fieldalignment
-      linters:
+      enable-all: true
-        - lll
+    lll:
-    - source: "`xml:"
+      line-length: 80
-      linters:
+      tab-width: 4
-        - lll
+    misspell:
-    - source: "`yaml:"
+      locale: US
-      linters:
+  exclusions:
-        - lll
+    generated: lax
-
+    presets:
-run:
+      - comments
-  timeout: 2m
+      - common-false-positives
-  allow-parallel-runners: true
+      - legacy
-  modules-download-mode: readonly
+      - std-error-handling
+    rules:
+      - linters:
+          - dupl
+          - funlen
+        path: _test\.go
+      - linters:
+          - lll
+        source: "^//go:generate "
+      - linters:
+          - lll
+        source: "`json:"
+      - linters:
+          - lll
+        source: "`xml:"
+      - linters:
+          - lll
+        source: "`yaml:"
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gofumpt
+    - goimports
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

Makefile

@@ -45,7 +45,7 @@ endef
 $(eval $(call tool,godoc,golang.org/x/tools/cmd/godoc@latest))
 $(eval $(call tool,gofumpt,mvdan.cc/gofumpt@latest))
 $(eval $(call tool,goimports,golang.org/x/tools/cmd/goimports@latest))
-$(eval $(call tool,golangci-lint,github.com/golangci/golangci-lint/cmd/golangci-lint@v1.56))
+$(eval $(call tool,golangci-lint,github.com/golangci/golangci-lint/cmd/golangci-lint@v2.1.6))
 $(eval $(call tool,gomod,github.com/Helcaraxan/gomod@latest))
 
 .PHONY: tools

mise.toml

@@ -0,0 +1,3 @@
+[tools]
+go = "1.23"
+golangci-lint = "2.1"