Update vendor (#1265)

vendor/github.com/wiggin77/cfg/ini/ini.go

@@ -0,0 +1,167 @@
+package ini
+
+import (
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"sync"
+	"time"
+)
+
+// Ini provides parsing and querying of INI format or simple name/value pairs
+// such as a simple config file.
+// A name/value pair format is just an INI with no sections, and properties can
+// be queried using an empty section name.
+type Ini struct {
+	mutex sync.RWMutex
+	m     map[string]*Section
+	lm    time.Time
+}
+
+// LoadFromFilespec loads an INI file from string containing path and filename.
+func (ini *Ini) LoadFromFilespec(filespec string) error {
+	f, err := os.Open(filespec)
+	if err != nil {
+		return err
+	}
+	return ini.LoadFromFile(f)
+}
+
+// LoadFromFile loads an INI file from `os.File`.
+func (ini *Ini) LoadFromFile(file *os.File) error {
+
+	fi, err := file.Stat()
+	if err != nil {
+		return err
+	}
+	lm := fi.ModTime()
+
+	if err := ini.LoadFromReader(file); err != nil {
+		return err
+	}
+	ini.lm = lm
+	return nil
+}
+
+// LoadFromReader loads an INI file from an `io.Reader`.
+func (ini *Ini) LoadFromReader(reader io.Reader) error {
+	data, err := ioutil.ReadAll(reader)
+	if err != nil {
+		return err
+	}
+	return ini.LoadFromString(string(data))
+}
+
+// LoadFromString parses an INI from a string .
+func (ini *Ini) LoadFromString(s string) error {
+	m, err := getSections(s)
+	if err != nil {
+		return err
+	}
+	ini.mutex.Lock()
+	ini.m = m
+	ini.lm = time.Now()
+	ini.mutex.Unlock()
+	return nil
+}
+
+// GetLastModified returns the last modified timestamp of the
+// INI contents.
+func (ini *Ini) GetLastModified() time.Time {
+	return ini.lm
+}
+
+// GetSectionNames returns the names of all sections in this INI.
+// Note, the returned section names are a snapshot in time, meaning
+// other goroutines may change the contents of this INI as soon as
+// the method returns.
+func (ini *Ini) GetSectionNames() []string {
+	ini.mutex.RLock()
+	defer ini.mutex.RUnlock()
+
+	arr := make([]string, 0, len(ini.m))
+	for key := range ini.m {
+		arr = append(arr, key)
+	}
+	return arr
+}
+
+// GetKeys returns the names of all keys in the specified section.
+// Note, the returned key names are a snapshot in time, meaning other
+// goroutines may change the contents of this INI as soon as the
+// method returns.
+func (ini *Ini) GetKeys(sectionName string) ([]string, error) {
+	sec, err := ini.getSection(sectionName)
+	if err != nil {
+		return nil, err
+	}
+	return sec.getKeys(), nil
+}
+
+// getSection returns the named section.
+func (ini *Ini) getSection(sectionName string) (*Section, error) {
+	ini.mutex.RLock()
+	defer ini.mutex.RUnlock()
+
+	sec, ok := ini.m[sectionName]
+	if !ok {
+		return nil, fmt.Errorf("section '%s' not found", sectionName)
+	}
+	return sec, nil
+}
+
+// GetFlattenedKeys returns all section names plus keys as one
+// flattened array.
+func (ini *Ini) GetFlattenedKeys() []string {
+	ini.mutex.RLock()
+	defer ini.mutex.RUnlock()
+
+	arr := make([]string, 0, len(ini.m)*2)
+	for _, section := range ini.m {
+		keys := section.getKeys()
+		for _, key := range keys {
+			name := section.GetName()
+			if name != "" {
+				key = name + "." + key
+			}
+			arr = append(arr, key)
+		}
+	}
+	return arr
+}
+
+// GetProp returns the value of the specified key in the named section.
+func (ini *Ini) GetProp(section string, key string) (val string, ok bool) {
+	sec, err := ini.getSection(section)
+	if err != nil {
+		return val, false
+	}
+	return sec.GetProp(key)
+}
+
+// ToMap returns a flattened map of the section name plus keys mapped
+// to values.
+func (ini *Ini) ToMap() map[string]string {
+	m := make(map[string]string)
+
+	ini.mutex.RLock()
+	defer ini.mutex.RUnlock()
+
+	for _, section := range ini.m {
+		for _, key := range section.getKeys() {
+			val, ok := section.GetProp(key)
+			if ok {
+				name := section.GetName()
+				var mapkey string
+				if name != "" {
+					mapkey = name + "." + key
+				} else {
+					mapkey = key
+				}
+				m[mapkey] = val
+			}
+		}
+	}
+	return m
+}