chore: tweak linter

internal/cron/chain.go

 package cron
 
 import (
+	"errors"
 	"fmt"
 	"runtime"
 	"sync"
@@ -48,7 +49,7 @@ func Recover(logger Logger) JobWrapper {
 					buf = buf[:runtime.Stack(buf, false)]
 					err, ok := r.(error)
 					if !ok {
-						err = fmt.Errorf("%v", r)
+						err = errors.New("panic: " + fmt.Sprint(r))
 					}
 					logger.Error(err, "panic", "stack", "...\n"+string(buf))
 				}

internal/cron/chain_test.go

@@ -46,7 +46,7 @@ func TestChainRecover(t *testing.T) {
 		panic("panickingJob panics")
 	})
 
-	t.Run("panic exits job by default", func(t *testing.T) {
+	t.Run("panic exits job by default", func(*testing.T) {
 		defer func() {
 			if err := recover(); err == nil {
 				t.Errorf("panic expected, but none received")
@@ -56,13 +56,13 @@ func TestChainRecover(t *testing.T) {
 			Run()
 	})
 
-	t.Run("Recovering JobWrapper recovers", func(t *testing.T) {
+	t.Run("Recovering JobWrapper recovers", func(*testing.T) {
 		NewChain(Recover(PrintfLogger(log.New(io.Discard, "", 0)))).
 			Then(panickingJob).
 			Run()
 	})
 
-	t.Run("composed with the *IfStillRunning wrappers", func(t *testing.T) {
+	t.Run("composed with the *IfStillRunning wrappers", func(*testing.T) {
 		NewChain(Recover(PrintfLogger(log.New(io.Discard, "", 0)))).
 			Then(panickingJob).
 			Run()
@@ -99,8 +99,7 @@ func (j *countJob) Done() int {
 }
 
 func TestChainDelayIfStillRunning(t *testing.T) {
-
-	t.Run("runs immediately", func(t *testing.T) {
+	t.Run("runs immediately", func(*testing.T) {
 		var j countJob
 		wrappedJob := NewChain(DelayIfStillRunning(DiscardLogger)).Then(&j)
 		go wrappedJob.Run()
@@ -110,7 +109,7 @@ func TestChainDelayIfStillRunning(t *testing.T) {
 		}
 	})
 
-	t.Run("second run immediate if first done", func(t *testing.T) {
+	t.Run("second run immediate if first done", func(*testing.T) {
 		var j countJob
 		wrappedJob := NewChain(DelayIfStillRunning(DiscardLogger)).Then(&j)
 		go func() {
@@ -124,7 +123,7 @@ func TestChainDelayIfStillRunning(t *testing.T) {
 		}
 	})
 
-	t.Run("second run delayed if first not done", func(t *testing.T) {
+	t.Run("second run delayed if first not done", func(*testing.T) {
 		var j countJob
 		j.delay = 10 * time.Millisecond
 		wrappedJob := NewChain(DelayIfStillRunning(DiscardLogger)).Then(&j)
@@ -149,12 +148,10 @@ func TestChainDelayIfStillRunning(t *testing.T) {
 			t.Error("expected both jobs done, got", started, done)
 		}
 	})
-
 }
 
 func TestChainSkipIfStillRunning(t *testing.T) {
-
-	t.Run("runs immediately", func(t *testing.T) {
+	t.Run("runs immediately", func(*testing.T) {
 		var j countJob
 		wrappedJob := NewChain(SkipIfStillRunning(DiscardLogger)).Then(&j)
 		go wrappedJob.Run()
@@ -164,7 +161,7 @@ func TestChainSkipIfStillRunning(t *testing.T) {
 		}
 	})
 
-	t.Run("second run immediate if first done", func(t *testing.T) {
+	t.Run("second run immediate if first done", func(*testing.T) {
 		var j countJob
 		wrappedJob := NewChain(SkipIfStillRunning(DiscardLogger)).Then(&j)
 		go func() {
@@ -178,7 +175,7 @@ func TestChainSkipIfStillRunning(t *testing.T) {
 		}
 	})
 
-	t.Run("second run skipped if first not done", func(t *testing.T) {
+	t.Run("second run skipped if first not done", func(*testing.T) {
 		var j countJob
 		j.delay = 10 * time.Millisecond
 		wrappedJob := NewChain(SkipIfStillRunning(DiscardLogger)).Then(&j)
@@ -204,7 +201,7 @@ func TestChainSkipIfStillRunning(t *testing.T) {
 		}
 	})
 
-	t.Run("skip 10 jobs on rapid fire", func(t *testing.T) {
+	t.Run("skip 10 jobs on rapid fire", func(*testing.T) {
 		var j countJob
 		j.delay = 10 * time.Millisecond
 		wrappedJob := NewChain(SkipIfStillRunning(DiscardLogger)).Then(&j)
@@ -218,7 +215,7 @@ func TestChainSkipIfStillRunning(t *testing.T) {
 		}
 	})
 
-	t.Run("different jobs independent", func(t *testing.T) {
+	t.Run("different jobs independent", func(*testing.T) {
 		var j1, j2 countJob
 		j1.delay = 10 * time.Millisecond
 		j2.delay = 10 * time.Millisecond
@@ -238,5 +235,4 @@ func TestChainSkipIfStillRunning(t *testing.T) {
 			t.Error("expected both jobs executed once, got", done1, "and", done2)
 		}
 	})
-
 }

internal/cron/cron.go

@@ -26,7 +26,7 @@ type Cron struct {
 	jobWaiter sync.WaitGroup
 }
 
-// ScheduleParser is an interface for schedule spec parsers that return a Schedule
+// ScheduleParser is an interface for schedule spec parsers that return a Schedule.
 type ScheduleParser interface {
 	Parse(spec string) (Schedule, error)
 }
@@ -43,7 +43,7 @@ type Schedule interface {
 	Next(time.Time) time.Time
 }
 
-// EntryID identifies an entry within a Cron instance
+// EntryID identifies an entry within a Cron instance.
 type EntryID int
 
 // Entry consists of a schedule and the func to execute on that schedule.
@@ -97,17 +97,17 @@ func (s byTime) Less(i, j int) bool {
 //
 // Available Settings
 //
-//   Time Zone
-//     Description: The time zone in which schedules are interpreted
-//     Default:     time.Local
+//	Time Zone
+//	  Description: The time zone in which schedules are interpreted
+//	  Default:     time.Local
 //
-//   Parser
-//     Description: Parser converts cron spec strings into cron.Schedules.
-//     Default:     Accepts this spec: https://en.wikipedia.org/wiki/Cron
+//	Parser
+//	  Description: Parser converts cron spec strings into cron.Schedules.
+//	  Default:     Accepts this spec: https://en.wikipedia.org/wiki/Cron
 //
-//   Chain
-//     Description: Wrap submitted jobs to customize behavior.
-//     Default:     A chain that recovers panics and logs them to stderr.
+//	Chain
+//	  Description: Wrap submitted jobs to customize behavior.
+//	  Default:     A chain that recovers panics and logs them to stderr.
 //
 // See "cron.With*" to modify the default behavior.
 func New(opts ...Option) *Cron {
@@ -130,7 +130,7 @@ func New(opts ...Option) *Cron {
 	return c
 }
 
-// FuncJob is a wrapper that turns a func() into a cron.Job
+// FuncJob is a wrapper that turns a func() into a cron.Job.
 type FuncJob func()
 
 func (f FuncJob) Run() { f() }

internal/cron/cron_test.go

@@ -59,7 +59,7 @@ func TestFuncPanicRecovery(t *testing.T) {
 
 type DummyJob struct{}
 
-func (d DummyJob) Run() {
+func (DummyJob) Run() {
 	panic("YOLO")
 }
 
@@ -556,7 +556,7 @@ func TestJobWithZeroTimeDoesNotRun(t *testing.T) {
 }
 
 func TestStopAndWait(t *testing.T) {
-	t.Run("nothing running, returns immediately", func(t *testing.T) {
+	t.Run("nothing running, returns immediately", func(*testing.T) {
 		cron := newWithSeconds()
 		cron.Start()
 		ctx := cron.Stop()
@@ -567,7 +567,7 @@ func TestStopAndWait(t *testing.T) {
 		}
 	})
 
-	t.Run("repeated calls to Stop", func(t *testing.T) {
+	t.Run("repeated calls to Stop", func(*testing.T) {
 		cron := newWithSeconds()
 		cron.Start()
 		_ = cron.Stop()
@@ -580,7 +580,7 @@ func TestStopAndWait(t *testing.T) {
 		}
 	})
 
-	t.Run("a couple fast jobs added, still returns immediately", func(t *testing.T) {
+	t.Run("a couple fast jobs added, still returns immediately", func(*testing.T) {
 		cron := newWithSeconds()
 		cron.AddFunc("* * * * * *", func() {})
 		cron.Start()
@@ -596,7 +596,7 @@ func TestStopAndWait(t *testing.T) {
 		}
 	})
 
-	t.Run("a couple fast jobs and a slow job added, waits for slow job", func(t *testing.T) {
+	t.Run("a couple fast jobs and a slow job added, waits for slow job", func(*testing.T) {
 		cron := newWithSeconds()
 		cron.AddFunc("* * * * * *", func() {})
 		cron.Start()
@@ -623,7 +623,7 @@ func TestStopAndWait(t *testing.T) {
 		}
 	})
 
-	t.Run("repeated calls to stop, waiting for completion and after", func(t *testing.T) {
+	t.Run("repeated calls to stop, waiting for completion and after", func(*testing.T) {
 		cron := newWithSeconds()
 		cron.AddFunc("* * * * * *", func() {})
 		cron.AddFunc("* * * * * *", func() { time.Sleep(2 * time.Second) })

internal/cron/parser.go

 package cron
 
 import (
-	"fmt"
 	"math"
 	"strconv"
 	"strings"
 	"time"
+
+	"github.com/pkg/errors"
 )
 
 // Configuration options for creating a parser. Most options specify which
@@ -86,7 +87,7 @@ func NewParser(options ParseOption) Parser {
 // It accepts crontab specs and features configured by NewParser.
 func (p Parser) Parse(spec string) (Schedule, error) {
 	if len(spec) == 0 {
-		return nil, fmt.Errorf("empty spec string")
+		return nil, errors.New("empty spec string")
 	}
 
 	// Extract timezone if present
@@ -96,7 +97,7 @@ func (p Parser) Parse(spec string) (Schedule, error) {
 		i := strings.Index(spec, " ")
 		eq := strings.Index(spec, "=")
 		if loc, err = time.LoadLocation(spec[eq+1 : i]); err != nil {
-			return nil, fmt.Errorf("provided bad location %s: %v", spec[eq+1:i], err)
+			return nil, errors.Wrap(err, "provided bad location")
 		}
 		spec = strings.TrimSpace(spec[i:])
 	}
@@ -104,7 +105,7 @@ func (p Parser) Parse(spec string) (Schedule, error) {
 	// Handle named schedules (descriptors), if configured
 	if strings.HasPrefix(spec, "@") {
 		if p.options&Descriptor == 0 {
-			return nil, fmt.Errorf("parser does not accept descriptors: %v", spec)
+			return nil, errors.New("descriptors not enabled")
 		}
 		return parseDescriptor(spec, loc)
 	}
@@ -168,7 +169,7 @@ func normalizeFields(fields []string, options ParseOption) ([]string, error) {
 		optionals++
 	}
 	if optionals > 1 {
-		return nil, fmt.Errorf("multiple optionals may not be configured")
+		return nil, errors.New("multiple optionals may not be configured")
 	}
 
 	// Figure out how many fields we need
@@ -183,9 +184,9 @@ func normalizeFields(fields []string, options ParseOption) ([]string, error) {
 	// Validate number of fields
 	if count := len(fields); count < min || count > max {
 		if min == max {
-			return nil, fmt.Errorf("expected exactly %d fields, found %d: %s", min, count, fields)
+			return nil, errors.New("incorrect number of fields")
 		}
-		return nil, fmt.Errorf("expected %d to %d fields, found %d: %s", min, max, count, fields)
+		return nil, errors.New("incorrect number of fields, expected " + strconv.Itoa(min) + "-" + strconv.Itoa(max))
 	}
 
 	// Populate the optional field if not provided
@@ -196,7 +197,7 @@ func normalizeFields(fields []string, options ParseOption) ([]string, error) {
 		case options&SecondOptional > 0:
 			fields = append([]string{defaults[0]}, fields...)
 		default:
-			return nil, fmt.Errorf("unknown optional field")
+			return nil, errors.New("unexpected optional field")
 		}
 	}
 
@@ -278,7 +279,7 @@ func getRange(expr string, r bounds) (uint64, error) {
 				return 0, err
 			}
 		default:
-			return 0, fmt.Errorf("too many hyphens: %s", expr)
+			return 0, errors.New("too many hyphens: " + expr)
 		}
 	}
 
@@ -299,20 +300,20 @@ func getRange(expr string, r bounds) (uint64, error) {
 			extra = 0
 		}
 	default:
-		return 0, fmt.Errorf("too many slashes: %s", expr)
+		return 0, errors.New("too many slashes: " + expr)
 	}
 
 	if start < r.min {
-		return 0, fmt.Errorf("beginning of range (%d) below minimum (%d): %s", start, r.min, expr)
+		return 0, errors.New("beginning of range below minimum: " + expr)
 	}
 	if end > r.max {
-		return 0, fmt.Errorf("end of range (%d) above maximum (%d): %s", end, r.max, expr)
+		return 0, errors.New("end of range above maximum: " + expr)
 	}
 	if start > end {
-		return 0, fmt.Errorf("beginning of range (%d) beyond end of range (%d): %s", start, end, expr)
+		return 0, errors.New("beginning of range after end: " + expr)
 	}
 	if step == 0 {
-		return 0, fmt.Errorf("step of range should be a positive number: %s", expr)
+		return 0, errors.New("step cannot be zero: " + expr)
 	}
 
 	return getBits(start, end, step) | extra, nil
@@ -332,10 +333,10 @@ func parseIntOrName(expr string, names map[string]uint) (uint, error) {
 func mustParseInt(expr string) (uint, error) {
 	num, err := strconv.Atoi(expr)
 	if err != nil {
-		return 0, fmt.Errorf("failed to parse int from %s: %s", expr, err)
+		return 0, errors.Wrap(err, "failed to parse number")
 	}
 	if num < 0 {
-		return 0, fmt.Errorf("negative number (%d) not allowed: %s", num, expr)
+		return 0, errors.New("number must be positive")
 	}
 
 	return uint(num), nil
@@ -419,17 +420,16 @@ func parseDescriptor(descriptor string, loc *time.Location) (Schedule, error) {
 			Dow:      all(dow),
 			Location: loc,
 		}, nil
-
 	}
 
 	const every = "@every "
 	if strings.HasPrefix(descriptor, every) {
 		duration, err := time.ParseDuration(descriptor[len(every):])
 		if err != nil {
-			return nil, fmt.Errorf("failed to parse duration %s: %s", descriptor, err)
+			return nil, errors.Wrap(err, "failed to parse duration")
 		}
 		return Every(duration), nil
 	}
 
-	return nil, fmt.Errorf("unrecognized descriptor: %s", descriptor)
+	return nil, errors.New("unrecognized descriptor: " + descriptor)
 }

internal/cron/parser_test.go

@@ -255,7 +255,7 @@ func TestNormalizeFields(t *testing.T) {
 	}
 
 	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
+		t.Run(test.name, func(*testing.T) {
 			actual, err := normalizeFields(test.input, test.options)
 			if err != nil {
 				t.Errorf("unexpected error: %v", err)
@@ -300,7 +300,7 @@ func TestNormalizeFields_Errors(t *testing.T) {
 		},
 	}
 	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
+		t.Run(test.name, func(*testing.T) {
 			actual, err := normalizeFields(test.input, test.options)
 			if err == nil {
 				t.Errorf("expected an error, got none. results: %v", actual)

plugin/idp/oauth2/oauth2_test.go

@@ -67,7 +67,7 @@ func TestNewIdentityProvider(t *testing.T) {
 		},
 	}
 	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
+		t.Run(test.name, func(*testing.T) {
 			_, err := NewIdentityProvider(test.config)
 			assert.ErrorContains(t, err, test.containsErr)
 		})

test/util/resource_name_test.go

@@ -27,7 +27,7 @@ func TestUIDMatcher(t *testing.T) {
 	}
 
 	for _, test := range tests {
-		t.Run(test.input, func(t *testing.T) {
+		t.Run(test.input, func(*testing.T) {
 			result := util.UIDMatcher.MatchString(test.input)
 			if result != test.expected {
 				t.Errorf("For input '%s', expected %v but got %v", test.input, test.expected, result)