132 lines
3.1 KiB
Go
132 lines
3.1 KiB
Go
package realize
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import (
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"gopkg.in/yaml.v2"
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"io/ioutil"
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"log"
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"os"
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"path/filepath"
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"time"
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)
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// settings const
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const (
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Permission = 0775
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File = ".realize.yaml"
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FileOut = ".r.outputs.log"
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FileErr = ".r.errors.log"
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FileLog = ".r.logs.log"
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)
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// random string preference
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const (
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letterIdxBits = 6 // 6 bits to represent a letter index
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letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
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letterIdxMax = 63 / letterIdxBits // # of letter indices fitting in 63 bits
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letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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)
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// Settings defines a group of general settings and options
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type Settings struct {
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Files `yaml:"files,omitempty" json:"files,omitempty"`
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FileLimit int32 `yaml:"flimit,omitempty" json:"flimit,omitempty"`
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Legacy Legacy `yaml:"legacy" json:"legacy"`
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Recovery Recovery `yaml:"recovery,omitempty" json:"recovery,omitempty"`
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}
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type Recovery struct {
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Index bool
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Events bool
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Tools bool
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}
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// Legacy is used to force polling and set a custom interval
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type Legacy struct {
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Force bool `yaml:"force" json:"force"`
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Interval time.Duration `yaml:"interval" json:"interval"`
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}
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// Files defines the files generated by realize
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type Files struct {
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Clean bool `yaml:"clean,omitempty" json:"clean,omitempty"`
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Outputs Resource `yaml:"outputs,omitempty" json:"outputs,omitempty"`
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Logs Resource `yaml:"logs,omitempty" json:"log,omitempty"`
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Errors Resource `yaml:"errors,omitempty" json:"error,omitempty"`
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}
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// Resource status and file name
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type Resource struct {
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Status bool
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Path string
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Name string
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}
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// Set legacy watcher with an interval
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func (l *Legacy) Set(status bool, interval int) {
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l.Force = true
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l.Interval = time.Duration(interval) * time.Second
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}
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// Remove realize folder
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func (s *Settings) Remove(d string) error {
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_, err := os.Stat(d)
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if !os.IsNotExist(err) {
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return os.RemoveAll(d)
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}
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return err
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}
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// Read config file
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func (s *Settings) Read(out interface{}) error {
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// backward compatibility
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if _, err := os.Stat(RFile); err != nil {
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return err
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}
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content, err := s.Stream(RFile)
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if err == nil {
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err = yaml.Unmarshal(content, out)
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return err
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}
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return err
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}
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// Write config file
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func (s *Settings) Write(out interface{}) error {
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y, err := yaml.Marshal(out)
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if err != nil {
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return err
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}
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s.Fatal(ioutil.WriteFile(RFile, y, Permission))
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return nil
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}
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// Stream return a byte stream of a given file
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func (s Settings) Stream(file string) ([]byte, error) {
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_, err := os.Stat(file)
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if err != nil {
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return nil, err
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}
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content, err := ioutil.ReadFile(file)
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s.Fatal(err)
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return content, err
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}
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// Fatal prints a fatal error with its additional messages
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func (s Settings) Fatal(err error, msg ...interface{}) {
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if err != nil {
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if len(msg) > 0 {
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log.Fatalln(Red.Regular(msg...), err.Error())
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} else {
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log.Fatalln(err.Error())
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}
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}
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}
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// Create a new file and return its pointer
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func (s Settings) Create(path string, name string) *os.File {
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file := filepath.Join(path, name)
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out, err := os.OpenFile(file, os.O_APPEND|os.O_WRONLY|os.O_CREATE|os.O_SYNC, Permission)
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s.Fatal(err)
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return out
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}
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