gcfg

package
v1.16.9 Latest Latest
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 Go to latest Published: May 30, 2022 License: MIT Imports: 20 Imported by: 27

Documentation

Overview

Package gcfg provides reading, caching and managing for configuration.

Example (MapSliceChange) 
package main

import (
	"fmt"
	"github.com/gogf/gf/frame/g"
	"github.com/gogf/gf/internal/intlog"
	"github.com/gogf/gf/os/gcfg"
)

func main() {
	intlog.SetEnabled(false)
	defer intlog.SetEnabled(true)
	// For testing/example only.
	content := `{"map":{"key":"value"}, "slice":[59,90]}`
	gcfg.SetContent(content)
	defer gcfg.RemoveContent()

	m := g.Cfg().GetMap("map")
	fmt.Println(m)

	// Change the key-value pair.
	m["key"] = "john"

	// It changes the underlying key-value pair.
	fmt.Println(g.Cfg().GetMap("map"))

	s := g.Cfg().GetArray("slice")
	fmt.Println(s)

	// Change the value of specified index.
	s[0] = 100

	// It changes the underlying slice.
	fmt.Println(g.Cfg().GetArray("slice"))

}

Output:

map[key:value]
map[key:john]
[59 90]
[100 90]

Index

Examples

Constants

View Source 
const (
	DefaultName       = "config"      // DefaultName is the default group name for instance usage.
	DefaultConfigFile = "config.toml" // DefaultConfigFile is the default configuration file name.

)

Variables

This section is empty.

Functions

func ClearContent 

func ClearContent()

ClearContent removes all global configuration contents.

func GetContent 

func GetContent(file ...string) string

GetContent returns customized configuration content for specified `file`. The `file` is unnecessary param, default is DefaultConfigFile.

func RemoveContent added in v1.11.5 

func RemoveContent(file ...string)

RemoveContent removes the global configuration with specified `file`. If `name` is not passed, it removes configuration of the default group name.

func SetContent 

func SetContent(content string, file ...string)

SetContent sets customized configuration content for specified `file`. The `file` is unnecessary param, default is DefaultConfigFile.

Types

type Config 

type Config struct {
	// contains filtered or unexported fields
}

Config is the configuration manager.

func Instance 

func Instance(name ...string) *Config

Instance returns an instance of Config with default settings. The parameter `name` is the name for the instance. But very note that, if the file "name.toml" exists in the configuration directory, it then sets it as the default configuration file. The toml file type is the default configuration file type.

func New 

func New(file ...string) *Config

New returns a new configuration management object. The parameter `file` specifies the default configuration file name for reading.

func (*Config) AddPath 

func (c *Config) AddPath(path string) error

AddPath adds a absolute or relative path to the search paths.

func (*Config) Array added in v1.16.5 

func (c *Config) Array() []interface{}

Array converts current Json object to []interface{}. It returns nil if fails.

func (*Config) Available added in v1.10.0 

func (c *Config) Available(file ...string) bool

Available checks and returns whether configuration of given `file` is available.

func (*Config) Clear 

func (c *Config) Clear()

Clear removes all parsed configuration files content cache, which will force reload configuration content from file.

func (*Config) Contains 

func (c *Config) Contains(pattern string) bool

Contains checks whether the value by specified `pattern` exist.

func (*Config) Dump 

func (c *Config) Dump()

Dump prints current Json object with more manually readable.

func (*Config) Get 

func (c *Config) Get(pattern string, def ...interface{}) interface{}

Get retrieves and returns value by specified `pattern`. It returns all values of current Json object if `pattern` is given empty or string ".". It returns nil if no value found by `pattern`.

We can also access slice item by its index number in `pattern` like: "list.10", "array.0.name", "array.0.1.id".

It returns a default value specified by `def` if value for `pattern` is not found.

func (*Config) GetArray 

func (c *Config) GetArray(pattern string, def ...interface{}) []interface{}

GetArray retrieves the value by specified `pattern`, and converts it to a slice of []interface{}.

func (*Config) GetBool 

func (c *Config) GetBool(pattern string, def ...interface{}) bool

GetBool retrieves the value by specified `pattern`, converts and returns it as bool. It returns false when value is: "", 0, false, off, nil; or returns true instead.

func (*Config) GetBytes 

func (c *Config) GetBytes(pattern string, def ...interface{}) []byte

GetBytes retrieves the value by specified `pattern` and converts it to []byte.

func (*Config) GetDuration 

func (c *Config) GetDuration(pattern string, def ...interface{}) time.Duration

GetDuration retrieves the value by specified `pattern` and converts it to time.Duration.

func (*Config) GetFileName 

func (c *Config) GetFileName() string

GetFileName returns the default configuration file name.

func (*Config) GetFilePath added in v1.15.5 

func (c *Config) GetFilePath(file ...string) (path string, err error)

GetFilePath returns the absolute configuration file path for the given filename by `file`. If `file` is not passed, it returns the configuration file path of the default name. It returns an empty `path` string and an error if the given `file` does not exist.

func (*Config) GetFloat32 

func (c *Config) GetFloat32(pattern string, def ...interface{}) float32

GetFloat32 retrieves the value by specified `pattern` and converts it to float32.

func (*Config) GetFloat64 

func (c *Config) GetFloat64(pattern string, def ...interface{}) float64

GetFloat64 retrieves the value by specified `pattern` and converts it to float64.

func (*Config) GetFloats 

func (c *Config) GetFloats(pattern string, def ...interface{}) []float64

GetFloats retrieves the value by specified `pattern` and converts it to []float64.

func (*Config) GetGTime 

func (c *Config) GetGTime(pattern string, format ...string) *gtime.Time

GetGTime retrieves the value by specified `pattern` and converts it to *gtime.Time.

func (*Config) GetInt 

func (c *Config) GetInt(pattern string, def ...interface{}) int

GetInt retrieves the value by specified `pattern` and converts it to int.

func (*Config) GetInt16 

func (c *Config) GetInt16(pattern string, def ...interface{}) int16

GetInt16 retrieves the value by specified `pattern` and converts it to int16.

func (*Config) GetInt32 

func (c *Config) GetInt32(pattern string, def ...interface{}) int32

GetInt32 retrieves the value by specified `pattern` and converts it to int32.

func (*Config) GetInt64 

func (c *Config) GetInt64(pattern string, def ...interface{}) int64

GetInt64 retrieves the value by specified `pattern` and converts it to int64.

func (*Config) GetInt8 

func (c *Config) GetInt8(pattern string, def ...interface{}) int8

GetInt8 retrieves the value by specified `pattern` and converts it to int8.

func (*Config) GetInterfaces 

func (c *Config) GetInterfaces(pattern string, def ...interface{}) []interface{}

GetInterfaces is alias of GetArray. See GetArray.

func (*Config) GetInts 

func (c *Config) GetInts(pattern string, def ...interface{}) []int

GetInts retrieves the value by specified `pattern` and converts it to []int.

func (*Config) GetJson 

func (c *Config) GetJson(pattern string, def ...interface{}) *gjson.Json

GetJson gets the value by specified `pattern`, and converts it to a un-concurrent-safe Json object.

func (*Config) GetJsonMap 

func (c *Config) GetJsonMap(pattern string, def ...interface{}) map[string]*gjson.Json

GetJsonMap gets the value by specified `pattern`, and converts it to a map of un-concurrent-safe Json object.

func (*Config) GetJsons 

func (c *Config) GetJsons(pattern string, def ...interface{}) []*gjson.Json

GetJsons gets the value by specified `pattern`, and converts it to a slice of un-concurrent-safe Json object.

func (*Config) GetMap 

func (c *Config) GetMap(pattern string, def ...interface{}) map[string]interface{}

GetMap retrieves and returns the value by specified `pattern` as map[string]interface{}.

func (*Config) GetMapStrStr added in v1.10.1 

func (c *Config) GetMapStrStr(pattern string, def ...interface{}) map[string]string

GetMapStrStr retrieves and returns the value by specified `pattern` as map[string]string.

func (*Config) GetMapToMap added in v1.9.3 

func (c *Config) GetMapToMap(pattern string, pointer interface{}, mapping ...map[string]string) error

GetMapToMap retrieves the value by specified `pattern` and converts it to specified map variable. See gconv.MapToMap.

func (*Config) GetMapToMaps added in v1.9.3 

func (c *Config) GetMapToMaps(pattern string, pointer interface{}, mapping ...map[string]string) error

GetMapToMaps retrieves the value by specified `pattern` and converts it to specified map slice variable. See gconv.MapToMaps.

func (*Config) GetMapToMapsDeep added in v1.9.3 

func (c *Config) GetMapToMapsDeep(pattern string, pointer interface{}, mapping ...map[string]string) error

GetMapToMapsDeep retrieves the value by specified `pattern` and converts it to specified map slice variable recursively. See gconv.MapToMapsDeep.

func (*Config) GetString 

func (c *Config) GetString(pattern string, def ...interface{}) string

GetString retrieves the value by specified `pattern` and converts it to string.

func (*Config) GetStrings 

func (c *Config) GetStrings(pattern string, def ...interface{}) []string

GetStrings retrieves the value by specified `pattern` and converts it to []string.

func (*Config) GetStruct 

func (c *Config) GetStruct(pattern string, pointer interface{}, mapping ...map[string]string) error

GetStruct retrieves the value by specified `pattern` and converts it to specified object `pointer`. The `pointer` should be the pointer to an object.

func (*Config) GetStructs 

func (c *Config) GetStructs(pattern string, pointer interface{}, mapping ...map[string]string) error

GetStructs converts any slice to given struct slice.

func (*Config) GetTime 

func (c *Config) GetTime(pattern string, format ...string) time.Time

GetTime retrieves the value by specified `pattern` and converts it to time.Time.

func (*Config) GetUint 

func (c *Config) GetUint(pattern string, def ...interface{}) uint

GetUint retrieves the value by specified `pattern` and converts it to uint.

func (*Config) GetUint16 

func (c *Config) GetUint16(pattern string, def ...interface{}) uint16

GetUint16 retrieves the value by specified `pattern` and converts it to uint16.

func (*Config) GetUint32 

func (c *Config) GetUint32(pattern string, def ...interface{}) uint32

GetUint32 retrieves the value by specified `pattern` and converts it to uint32.

func (*Config) GetUint64 

func (c *Config) GetUint64(pattern string, def ...interface{}) uint64

GetUint64 retrieves the value by specified `pattern` and converts it to uint64.

func (*Config) GetUint8 

func (c *Config) GetUint8(pattern string, def ...interface{}) uint8

GetUint8 retrieves the value by specified `pattern` and converts it to uint8.

func (*Config) GetVar 

func (c *Config) GetVar(pattern string, def ...interface{}) *gvar.Var

GetVar returns a gvar.Var with value by given `pattern`.

func (*Config) Map added in v1.16.5 

func (c *Config) Map() map[string]interface{}

Map converts current Json object to map[string]interface{}. It returns nil if fails.

func (*Config) MapToMap added in v1.16.5 

func (c *Config) MapToMap(pointer interface{}, mapping ...map[string]string) error

MapToMap converts current Json object to specified map variable. The parameter of `pointer` should be type of *map.

func (*Config) MapToMaps added in v1.16.5 

func (c *Config) MapToMaps(pointer interface{}, mapping ...map[string]string) error

MapToMaps converts current Json object to specified map variable slice. The parameter of `pointer` should be type of []map/*map.

func (*Config) Set added in v1.13.2 

func (c *Config) Set(pattern string, value interface{}) error

Set sets value with specified `pattern`. It supports hierarchical data access by char separator, which is '.' in default. It is commonly used for updates certain configuration value in runtime.

func (*Config) SetFileName 

func (c *Config) SetFileName(name string) *Config

SetFileName sets the default configuration file name.

func (*Config) SetPath 

func (c *Config) SetPath(path string) error

SetPath sets the configuration directory path for file search. The parameter `path` can be absolute or relative path, but absolute path is strongly recommended.

func (*Config) SetViolenceCheck 

func (c *Config) SetViolenceCheck(check bool)

SetViolenceCheck sets whether to perform hierarchical conflict checking. This feature needs to be enabled when there is a level symbol in the key name. It is off in default.

Note that, turning on this feature is quite expensive, and it is not recommended to allow separators in the key names. It is best to avoid this on the application side.

func (*Config) Struct added in v1.16.5 

func (c *Config) Struct(pointer interface{}, mapping ...map[string]string) error

Struct converts current Json object to specified object. The `pointer` should be a pointer type of *struct.

func (*Config) Structs added in v1.16.5 

func (c *Config) Structs(pointer interface{}, mapping ...map[string]string) error

Structs converts current Json object to specified object slice. The `pointer` should be a pointer type of []struct/*struct.

Source Files

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