.golangci-prod.toml

# Configuration for golangci-lint@v1.52.2
# See https://golangci-lint.run/usage/configuration/#config-file
 
# Options for analysis running
[run]
  # timeout for analysis, e.g. 30s, 5m, default is 1m
  timeout = "10m"

  # If set we pass it to "go list -mod={option}". From "go help modules":
  # If invoked with -mod=readonly, the go command is disallowed from the implicit
  # automatic updating of go.mod described above. Instead, it fails when any changes
  # to go.mod are needed. This setting is most useful to check that go.mod does
  # not need updates, such as in a continuous integration and testing system.
  # If invoked with -mod=vendor, the go command assumes that the vendor
  # directory holds the correct copies of dependencies and ignores
  # the dependency descriptions in go.mod.
  #
  # Allowed values: readonly|vendor|mod
  # By default, it isn't set.
  modules-download-mode = "readonly"

# output configuration options
[output]
  # Make issues output unique by line.
  # Default: true
  uniq-by-line = false

# See https://golangci-lint.run/usage/linters/
[linters]
  # Disable-all coupled with enable scales well with updates to golangci-lint
  disable-all = true

  enable = [
    # https://github.com/kisielk/errcheck
    # errcheck is a program for checking for unchecked errors in Go code. These
    # unchecked errors can be critical bugs in some cases.
    "errcheck",

    # https://github.com/dominikh/go-tools/tree/master/simple
    # Linter for Go source code that specializes in simplifying code.
    "gosimple",

    # https://pkg.go.dev/cmd/vet
    # Vet examines Go source code and reports suspicious constructs, such as
    # Printf calls whose arguments do not align with the format string.
    "govet",

    # https://github.com/gordonklaus/ineffassign
    # Detects when assignments to existing variables are not used.
    "ineffassign",

    # https://staticcheck.io/
    # It's a set of rules from staticcheck. It's not the same thing as the
    # staticcheck binary. The author of staticcheck doesn't support or approve
    # the use of staticcheck as a library inside golangci-lint.
    "staticcheck",

    # https://github.com/dominikh/go-tools/tree/master/unused
    # Checks Go code for unused constants, variables, functions and types.
    "unused", # PROD only

    # https://github.com/timakin/bodyclose
    # checks whether HTTP response body is closed successfully.
    # Disabled due to false positives from
    # https://github.com/timakin/bodyclose/issues/30
    # "bodyclose",

    # https://github.com/mibk/dupl
    # Tool for code clone detection.
    "dupl",

    # https://github.com/Antonboom/errname
    # Checks that sentinel errors are prefixed with the Err and error types are
    # suffixed with the Error.
    "errname",

    # https://github.com/polyfloyd/go-errorlint
    # errorlint is a linter for that can be used to find code that will cause
    # problems with the error wrapping scheme introduced in Go 1.13.
    "errorlint",

    # https://github.com/daixiang0/gci
    # Gci controls Go package import order and makes it always deterministic.
    "gci",

    # https://github.com/leighmcculloch/gocheckcompilerdirectives
    # Checks that go compiler directive comments (//go:) are valid.
    "gocheckcompilerdirectives",

    # https://github.com/uudashr/gocognit
    # Computes and checks the cognitive complexity of functions.
    "gocognit", # PROD only

    # https://github.com/jgautheron/goconst
    # Finds repeated strings that could be replaced by a constant.
    "goconst",

    # https://github.com/go-critic/go-critic
    # Provides diagnostics that check for bugs, performance and style issues.
    # Extensible without recompilation through dynamic rules. Dynamic rules are
    # written declaratively with AST patterns, filters, report message and
    # optional suggestion.
    "gocritic", # PROD only

    # https://github.com/mvdan/gofumpt
    # Gofumpt checks whether code was gofumpt-ed.
    "gofumpt",

    # https://github.com/securego/gosec
    # Inspects source code for security problems.
    "gosec", # PROD only

    # https://github.com/walle/lll
    # Reports long lines.
    "lll",

    # https://github.com/client9/misspell
    # Finds commonly misspelled English words in comments.
    "misspell",

    # https://github.com/junk1tm/musttag
    # enforce field tags in (un)marshaled structs.
    "musttag",

    # https://github.com/alexkohler/nakedret
    # Finds naked returns in functions greater than a specified function length.
    "nakedret",

    # https://github.com/gostaticanalysis/nilerr
    # Finds the code that returns nil even if it checks that the error is not
    # nil.
    "nilerr",

    # https://github.com/sonatard/noctx
    # noctx finds sending http request without context.Context.
    "noctx",

    # https://github.com/golangci/golangci-lint/blob/master/pkg/golinters/nolintlint/README.md
    # Reports ill-formed or insufficient nolint directives.
    "nolintlint", # PROD only

    # https://github.com/mgechev/revive
    # Fast, configurable, extensible, flexible, and beautiful linter for Go.
    # Drop-in replacement of golint.
    "revive",

    # https://github.com/jingyugao/rowserrcheck
    # checks whether Err of rows is checked successfully.
    "rowserrcheck",

    # https://github.com/ryanrolds/sqlclosecheck
    # Checks that sql.Rows and sql.Stmt are closed.
    "sqlclosecheck",

    # https://github.com/dominikh/go-tools/tree/master/stylecheck
    # Stylecheck is a replacement for golint.
    "stylecheck",

    # https://github.com/sivchari/tenv
    # tenv is analyzer that detects using os.Setenv instead of t.Setenv since
    # Go1.17.
    "tenv",

    # https://github.com/maratori/testpackage
    # linter that makes you use a separate _test package.
    "testpackage",

    # https://github.com/kulti/thelper
    # thelper detects Go test helpers without t.Helper() call and checks the
    # consistency of test helpers.
    "thelper",

    # https://github.com/mdempsky/unconvert
    # Remove unnecessary type conversions.
    "unconvert",

    # https://github.com/sashamelentyev/usestdlibvars
    # A linter that detect the possibility to use variables/constants from the
    # Go standard library.
    "usestdlibvars",
  ]

# All available settings of specific linters
[linters-settings]

  [linters-settings.errcheck]
    # Report about not checking of errors in type assertions: `a := b.(MyStruct)`.
    # Such cases aren't reported by default.
    # Default: false
    check-type-assertions = true

  [linters-settings.govet]
    # Report about shadowed variables.
    # Default: false
    check-shadowing = true
    
    # Enable all analyzers.
    # Default: false
    enable-all = true
    
    # Disable analyzers by name
    # See https://pkg.go.dev/golang.org/x/tools/go/analysis/passes#section-directories
    disable = [
      # (not needed) reports mismatches between assembly files and Go
      # declarations.
      "asmdecl",
      # (dupl staticcheck) detects useless assignments.
      "assign",
      # (not needed) detects some violations of the cgo pointer passing rules.
      "cgocall",
      # (not needed) detects structs that would use less memory if their fields
      # were sorted.
      "fieldalignment",
      # (not needed) serves as a trivial example and test of the Analysis API.
      "findcall",
      # (not needed) reports assembly code that clobbers the frame pointer
      # before saving it.
      "framepointer",
      # (dupl revive struct-tag) defines an Analyzer that checks struct field
      # tags are well formed.
      "structtag",
    ]

  [linters-settings.gci]
    # Section configuration to compare against.
    # Section names are case-insensitive and may contain parameters in ().
    # The default order of sections is `standard > default > custom > blank > dot`,
    # If `custom-order` is `true`, it follows the order of `sections` option.
    # Default: ["standard", "default"]
    sections = [
      "standard", # Standard section: captures all standard packages.
      "default", # Default section: contains all imports that could not be matched to another section type.
    ]

  [linters-settings.gocognit]
    # Minimal code complexity to report.
    # Default: 30 (but we recommend 10-20)
    min-complexity = 20

  [linters-settings.goconst]
    # Ignore test files.
    # Default: false
    ignore-tests = true

  [linters-settings.gocritic]
    # Which checks should be enabled; can't be combined with 'disabled-checks'.
    # See https://go-critic.github.io/overview#checks-overview.
    # To check which checks are enabled run `GL_DEBUG=gocritic golangci-lint run`.
    # By default, list of stable checks is used.
    enabled-checks = [
      # ============ Diagnostic ============ 
      # https://go-critic.com/overview.html#checkers-from-the-diagnostic-group
      # Detects suspicious arguments order.
      "argOrder",
      # Detects suspicious function calls.
      "badCall",
      # Detects suspicious condition expressions.
      "badCond",
      # Detects suspicious mutex lock/unlock operations.
      "badLock",
      # Detects erroneous case order inside switch statements.
      "caseOrder",
      # Detects commented-out code inside function bodies.
      "commentedOutCode",
      # Detects loops inside functions that use defer.
      "deferInLoop",
      # Detects malformed ‘deprecated’ doc-comments.
      "deprecatedComment",
      # Detects suspicious duplicated arguments.
      "dupArg",
      # Detects duplicated case clauses inside switch or select statements.
      "dupCase",
      # Detects calls to exit/fatal inside functions that use defer.
      "exitAfterDefer",
      # Detects problems in filepath.Join() function calls.
      "filepathJoin",
      # Detects suspicious map literal keys.
      "mapKey",
      # Detects various off-by-one kind of errors.
      "offBy1",
      # Detects suspicious http.Error call without following return.
      "returnAfterHttpError",
      # Detects suspicious/confusing re-assignments.
      "sloppyReassign",
      # Detects unsupported test and benchmark funcs.
      "sloppyTestFuncName",
      # Detects redundant type assertions.
      "sloppyTypeAssert",
      # Detects “%s” formatting directives that can be replaced with %q.
      "sprintfQuotedString",
      # Detects potential truncation issues when comparing ints of different
      # sizes.
      "truncateCmp",
      # Detects conditions that are unsafe due to not being exhaustive.
      "weakCond",
    
      # ============ Style ============ 
      # https://go-critic.com/overview.html#checkers-from-the-style-group
      # Detects assignments that can be simplified by using assignment
      # operators.
      "assignOp",
      # Detects bool expressions that can be simplified.
      "boolExprSimplify",
      # Detects commented-out imports.
      "commentedOutImport",
      # Detects else with nested if statement that can be replaced with else-if.
      "elseif",
      # Detects fallthrough that can be avoided by using multi case values.
      "emptyFallthrough",
      # Detects empty string checks that can be written more idiomatically.
      "emptyStringTest",
      # Detects repeated if-else statements and suggests to replace them with
      # switch statement.
      "ifElseChain",
      # Finds where nesting level could be reduced.
      "nestingReduce",
      # Detects concatenation with os.PathSeparator which can be replaced with
      # filepath.Join.
      "preferFilepathJoin",
      # Detects input and output parameters that have a type of pointer to
      # referential type.
      "ptrToRefParam",
      # Detects redundant fmt.Sprint calls.
      "redundantSprint",
      # Detects regexp patterns that can be simplified.
      "regexpSimplify",
      # Detects strings.Compare usage.
      "stringsCompare",
      # Detects TODO comments without detail/assignee.
      "todoCommentWithoutDetail",
      # Detects dereference expressions that can be omitted.
      "underef",
      # Detects unnamed results that may benefit from names.
      "unnamedResult",
      # Detects slice expressions that can be simplified to sliced expression
      # itself.
      "unslice",
      # Detects function calls that can be replaced with convenience wrappers.
      "wrapperFunc",
    
      # ============ Performance ============ 
      # https://go-critic.com/overview.html#checkers-from-the-performance-group
      # Detects fmt.Sprint(f/ln) calls which can be replaced with
      # fmt.Fprint(f/ln).
      "preferFprint",
      # Detects w.Write or io.WriteString calls which can be replaced with
      # w.WriteString.
      "preferStringWriter",
      # Detects loops that copy big objects during each iteration.
      "rangeValCopy",
      # Detects redundant conversions between string and []byte.
      "stringXbytes",
    ]
    
    # Settings passed to gocritic.
    # The settings key is the name of a supported gocritic checker.
    # The list of supported checkers can be found in https://go-critic.github.io/overview.
    [linters-settings.gocritic.settings]
      [linters-settings.gocritic.settings.underef]
        # Whether to skip (*x).method() calls where x is a pointer receiver.
        # Default: true
        skipRecvDeref = false
      [linters-settings.gocritic.settings.unnamedResult]
        # Whether to check exported functions.
        # Default: false
        checkExported = true
      [linters-settings.gocritic.settings.rangeValCopy]
        # Size in bytes that makes the warning trigger.
        # Default: 128
        sizeThreshold = 512

  [linters-settings.gofumpt]
    # Choose whether to use the extra rules.
    # Default: false
    extra-rules = true

  [linters-settings.gosec]
    # To specify a set of rules to explicitly exclude.
    # Available rules: https://github.com/securego/gosec#available-rules
    # Default: []
    excludes = [
      # Look for hard coded credentials
      # too many false positives
      "G101"
    ]

  [linters-settings.lll]
    # Max line length, lines longer will be reported.
    # '\t' is counted as 1 character by default, and can be changed with the tab-width option.
    # Default: 120.
    line-length = 160

  [linters-settings.misspell]
    # Correct spellings using locale preferences for US or UK.
    # Default is to use a neutral variety of English.
    # Setting locale to US will correct the British spelling of 'colour' to 'color'.
    locale = "US"

  [linters-settings.nolintlint]
    # Enable to require nolint directives to mention the specific linter being suppressed.
    # Default: false
    require-specific = true

  [linters-settings.revive]
    # Sets the default severity.
    # See https://github.com/mgechev/revive#configuration
    # Default: warning
    severity = "error"
    
      # Available rules - https://github.com/mgechev/revive/blob/v1.3.1/RULES_DESCRIPTIONS.md
      [[linters-settings.revive.rules]]
        # Reduces redundancies around variable declaration.
        name = "var-declaration"
    
      [[linters-settings.revive.rules]]
        # Warns when a public return is from unexported type.
        name = "unexported-return"
    
      [[linters-settings.revive.rules]]
        # Disallows blank imports.
        name = "blank-imports"
    
      [[linters-settings.revive.rules]]
        # context.Context should be the first argument of a function.
        name = "context-as-argument"
    
      [[linters-settings.revive.rules]]
        # Naming and commenting conventions on exported symbols.
        name = "exported"
    
      [[linters-settings.revive.rules]]
        # Redundant if when returning an error.
        name = "if-return"
    
      [[linters-settings.revive.rules]]
        # Use i++ and i-- instead of i += 1 and i -= 1.
        name = "increment-decrement"
    
      [[linters-settings.revive.rules]]
        # Prevents redundant else statements.
        name = "indent-error-flow"
    
      [[linters-settings.revive.rules]]
        # Specifies the maximum number of arguments a function can receive.
        name = "argument-limit"
        arguments = [5]
    
      [[linters-settings.revive.rules]]
        # Prevents redundant else statements (extends indent-error-flow).
        name = "superfluous-else"
    
      [[linters-settings.revive.rules]]
        # Warns on methods with names that differ only by capitalization.
        name = "confusing-naming"
    
      [[linters-settings.revive.rules]]
        # Looks for program exits in funcs other than main() or init().
        name = "deep-exit"
    
      [[linters-settings.revive.rules]]
        # Suggests to rename or remove unused function parameters.
        name = "unused-parameter"
    
      [[linters-settings.revive.rules]]
        # Checks common struct tags like json,xml,yaml.
        name = "struct-tag"
    
      [[linters-settings.revive.rules]]
        # Warns on assignments to value-passed method receivers.
        name = "modifies-value-receiver"
    
      [[linters-settings.revive.rules]]
        # Warns on constant logical expressions.
        name = "constant-logical-expr"
    
      [[linters-settings.revive.rules]]
        # Warns on redefinitions of builtin identifiers.
        name = "redefines-builtin-id"
    
      [[linters-settings.revive.rules]]
        # Specifies the maximum number of results a function can return.
        name = "function-result-limit"
        arguments = [3]
    
      [[linters-settings.revive.rules]]
        # Warns if address of range value is used dangerously.
        name = "range-val-address"
    
      [[linters-settings.revive.rules]]
        # Warns on explicit call to the garbage collector.
        name = "call-to-gc"
    
      [[linters-settings.revive.rules]]
        # Spots identifiers that shadow an import.
        name = "import-shadowing"
    
      [[linters-settings.revive.rules]]
        # Warns on bare returns.
        name = "bare-return"
    
      [[linters-settings.revive.rules]]
        # Suggests to rename or remove unused method receivers.
        name = "unused-receiver"
    
      [[linters-settings.revive.rules]]
        # Spots if-then-else statements that can be refactored to simplify code
        # reading.
        name = "early-return"
    
      [[linters-settings.revive.rules]]
        # Warns on function calls that will lead to (direct) infinite recursion.
        name = "unconditional-recursion"
    
      [[linters-settings.revive.rules]]
        # Spots if-then-else statements with identical then and else branches.
        name = "identical-branches"
    
      [[linters-settings.revive.rules]]
        # Warns on some defer gotchas.
        name = "defer"
    
      [[linters-settings.revive.rules]]
        # Warns on wrongly named un-exported symbols.
        name = "unexported-naming"
    

  [linters-settings.rowserrcheck]
    # database/sql is always checked
    # Default: []
    packages = [
      "github.com/jmoiron/sqlx",
    ]

  [linters-settings.usestdlibvars]
    # Suggest the use of http.StatusXX.
    # covered by stylecheck ST1013.
    # Default: true
    http-status-code = false
    # Suggest the use of time.Month.String().
    # Default: false
    time-month = true
    # Suggest the use of time.Layout.
    # Default: false
    time-layout = true
    # Suggest the use of sql.LevelXX.String().
    # Default: false
    sql-isolation-level = true
    # Suggest the use of tls.SignatureScheme.String().
    # Default: false
    tls-signature-scheme = true

[issues]
  # The list of ids of default excludes to include or disable.
  # https://golangci-lint.run/usage/false-positives/#default-exclusions
  # Default: []
  include = [
    # staticcheck SA4011: Break statement with no effect. 
    "EXC0005",
  ]

  # Excluding configuration per-path, per-linter, per-text and per-source
  [[issues.exclude-rules]]
    text = 'declaration of "(err|ctx)" shadows declaration at'
    linters = ["govet"]

  [[issues.exclude-rules]]
    path = "cmd/.*"
    linters = ["dupl"]

  [[issues.exclude-rules]]
    # Exclude some linters from running on tests files.
    path = "_test\\.go"
    linters = [
      "dupl",
      "gosec",
      "lll",
      "gocognit",
      "goconst",
    ]

  [[issues.exclude-rules]]
    linters = ["lll"]
    source = "^//go:generate "

  [[issues.exclude-rules]]
    path = "_test\\.go"
    text = "^Error return value is not checked$"
    linters = ["errcheck"]