add .golangci-lint

p2/.golangci.yml

@@ -0,0 +1,103 @@
+# Copyright 2023 wanderer <a_mirre at utb dot cz>
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+---
+run:
+  go: 1.19.2
+  tests: true
+
+issues:
+  max-issues-per-linter: 0
+  max-same-issues: 0
+
+linters:
+  enable:
+    - bidichk
+    # - dupl
+    # The linter 'deadcode' is deprecated (since v1.49.0) due to: The owner
+    # seems to have abandoned the linter.  Replaced by unused.
+    # - deadcode
+    - decorder
+    - dogsled
+    - exportloopref
+    - forbidigo
+    - gas
+    - gocognit
+    - goconst
+    - gocritic
+    - godot
+    - govet
+    - gofmt
+    - gofumpt
+    - goimports
+    - goprintffuncname
+    - gosec
+    - ineffassign
+    # The linter 'ifshort' is deprecated (since v1.48.0) due to: The repository
+    # of the linter has been deprecated by the owner.
+    # - ifshort
+    - misspell
+    # - prealloc
+    - revive
+    - tparallel
+    - unconvert
+    - unparam
+    - unused
+    # The linter 'varcheck' is deprecated (since v1.49.0) due to: The owner
+    # seems to have abandoned the linter.  Replaced by unused.
+    # - varcheck
+    - wastedassign
+    - whitespace
+    - wsl
+
+linter-settings:
+  dupl:
+    threshold: 100
+  gocritic:
+    enabled-tags:
+      - diagnostic
+      - experimental
+      - opinionated
+      - performance
+      - style
+    disabled-checks:
+      - dupImport  # https://github.com/go-critic/go-critic/issues/845
+      - ifElseChain
+      - octalLiteral
+      - whyNoLint
+      - wrapperFunc
+  gocyclo:
+    min-complexity: 15
+  gofumpt:
+    extra-rules: true
+    lang-version: "1.18"
+  govet:
+    check-shadowing: true
+  revive:
+    severity: warning
+    confidence: 0.8
+    errorCode: 1
+    warningCode: 1
+    rules:
+      - name: blank-imports
+      - name: context-as-argument
+      - name: context-keys-type
+      - name: dot-imports
+      - name: error-return
+      - name: error-strings
+      - name: error-naming
+      - name: exported
+      - name: if-return
+      - name: increment-decrement
+      - name: var-naming
+      - name: var-declaration
+      - name: package-comments
+      - name: range
+      - name: receiver-naming
+      - name: time-naming
+      - name: unexported-return
+      - name: indent-error-flow
+      - name: errorf
+      - name: duplicated-imports
+      - name: modifies-value-receiver
+...