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// Code generated by gen from kitchen.cue; DO NOT EDIT.
package kitchen
import (
"errors"
"flag"
"fmt"
"regexp"
"slices"
"strconv"
"time"
)
var (
reTags = regexp.MustCompile("^[a-z]+$")
reWebhook = regexp.MustCompile("^https://")
reID = regexp.MustCompile("^\\d+$")
)
type config struct {
// Service name, shown in logs.
//
// A second paragraph only goes into the Nix description.
Name string
// Worker count.
Workers int
// Retries; negative means forever.
Retries int
// Sampling ratio.
Ratio float64
// Any number.
Scale float64
// Request timeout.
Timeout time.Duration
// Backoff steps.
Backoff []time.Duration
// Priority.
Priority int
Level string
// Tags to attach.
Tags []string
// Ports to probe.
Probes []int
// Optional webhook.
Webhook string
// Uses an RE2-only pattern.
ID string
// Optional, with a field-level Nix type and apply.
Owner string
// Ends up in Go only.
Secret string
With withConfig
Db dbConfig
}
type withConfig struct {
// A Nix keyword as a key, and an `if` below it.
If bool
// A key that needs quoting in Nix.
HasSpace string
}
type dbConfig struct {
// Database URL.
URL string
}
// defaultArgs returns the defaults from kitchen.cue.
func defaultArgs() config {
return config{
Workers: 4,
Retries: 3,
Ratio: 0.5,
Scale: 1,
Timeout: mustParse(time.ParseDuration, "30s"),
Backoff: []time.Duration{mustParse(time.ParseDuration, "1s"), mustParse(time.ParseDuration, "5s")},
Priority: 2,
Level: "low",
Probes: []int{80, 443},
ID: "1",
With: withConfig{
HasSpace: "x",
},
Db: dbConfig{
URL: "postgres://localhost/app",
},
}
}
// registerFlags defines a flag for every field of c, using c's current
// values as flag defaults.
func registerFlags(fs *flag.FlagSet, c *config) {
fs.StringVar(&c.Name, "name", c.Name, "Service name, shown in logs.")
fs.IntVar(&c.Workers, "workers", c.Workers, "Worker count.")
fs.IntVar(&c.Retries, "retries", c.Retries, "Retries; negative means forever.")
fs.Float64Var(&c.Ratio, "ratio", c.Ratio, "Sampling ratio.")
fs.Float64Var(&c.Scale, "scale", c.Scale, "Any number.")
fs.Func("timeout", "Request timeout. (default: 30s)", func(s string) error {
v, err := time.ParseDuration(s)
if err != nil {
return err
}
c.Timeout = v
return nil
})
{
set := false
fs.Func("backoff", "Backoff steps. (repeatable; default: 1s, 5s)", func(s string) error {
v, err := time.ParseDuration(s)
if err != nil {
return err
}
if !set {
c.Backoff, set = nil, true
}
c.Backoff = append(c.Backoff, v)
return nil
})
}
fs.IntVar(&c.Priority, "priority", c.Priority, "Priority. (one of: 1, 2, 3)")
fs.StringVar(&c.Level, "level", c.Level, "(one of: low, mid, high)")
{
set := false
fs.Func("tags", "Tags to attach. (repeatable)", func(s string) error {
v := s
if !set {
c.Tags, set = nil, true
}
c.Tags = append(c.Tags, v)
return nil
})
}
{
set := false
fs.Func("probes", "Ports to probe. (repeatable; default: 80, 443)", func(s string) error {
v, err := strconv.Atoi(s)
if err != nil {
return err
}
if !set {
c.Probes, set = nil, true
}
c.Probes = append(c.Probes, v)
return nil
})
}
fs.StringVar(&c.Webhook, "webhook", c.Webhook, "Optional webhook.")
fs.StringVar(&c.ID, "id", c.ID, "Uses an RE2-only pattern.")
fs.StringVar(&c.Owner, "owner", c.Owner, "Optional, with a field-level Nix type and apply.")
fs.StringVar(&c.Secret, "secret", c.Secret, "Ends up in Go only.")
fs.BoolVar(&c.With.If, "with.if", c.With.If, "A Nix keyword as a key, and an `if` below it.")
fs.StringVar(&c.With.HasSpace, "with.has space", c.With.HasSpace, "A key that needs quoting in Nix.")
fs.StringVar(&c.Db.URL, "db.url", c.Db.URL, "Database URL.")
}
// validate checks c against the constraints in kitchen.cue.
func (c *config) validate() error {
var errs []error
if c.Workers < 1 {
errs = append(errs, fmt.Errorf("workers: must be >= 1, got %v", c.Workers))
}
if c.Workers > 64 {
errs = append(errs, fmt.Errorf("workers: must be <= 64, got %v", c.Workers))
}
if c.Retries < -1 {
errs = append(errs, fmt.Errorf("retries: must be >= -1, got %v", c.Retries))
}
if c.Ratio <= 0 {
errs = append(errs, fmt.Errorf("ratio: must be > 0, got %v", c.Ratio))
}
if c.Ratio > 1 {
errs = append(errs, fmt.Errorf("ratio: must be <= 1, got %v", c.Ratio))
}
if !slices.Contains([]int{1, 2, 3}, c.Priority) {
errs = append(errs, fmt.Errorf("priority: %v is not one of [1, 2, 3]", c.Priority))
}
if !slices.Contains([]string{"low", "mid", "high"}, c.Level) {
errs = append(errs, fmt.Errorf("level: %q is not one of [low, mid, high]", c.Level))
}
for i, v := range c.Tags {
if !reTags.MatchString(v) {
errs = append(errs, fmt.Errorf("tags[%d]: %q does not match %s", i, v, reTags))
}
}
for i, v := range c.Probes {
if v < 1 {
errs = append(errs, fmt.Errorf("probes[%d]: must be >= 1, got %v", i, v))
}
if v > 65535 {
errs = append(errs, fmt.Errorf("probes[%d]: must be <= 65535, got %v", i, v))
}
}
if c.Webhook != "" {
if !reWebhook.MatchString(c.Webhook) {
errs = append(errs, fmt.Errorf("webhook: %q does not match %s", c.Webhook, reWebhook))
}
}
if !reID.MatchString(c.ID) {
errs = append(errs, fmt.Errorf("id: %q does not match %s", c.ID, reID))
}
return errors.Join(errs...)
}
// mustParse applies a hand-written parse hook to a schema default. gen has
// already checked the default against the schema, so a failure here means
// the hook and the schema disagree.
func mustParse[T any](parse func(string) (T, error), s string) T {
v, err := parse(s)
if err != nil {
panic(fmt.Sprintf("schema default %q rejected by parse hook: %v", s, err))
}
return v
}
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