Merge pull request #8 for v0.5.0 Release

.travis.yml

@@ -7,17 +7,19 @@ branches:
     # skip tags build, we are building branch and master that is enough for
     # consistenty check and release. Let's use Travis CI resources optimally
     # for aah framework.
-    - /^v[0-9]\.[0-9]/
+    - /^v[0-9.]+$/
 
 go:
-  - 1.8
-  - 1.8.x
+  - 1.9.x
+  - 1.x
   - tip
 
 go_import_path: aahframework.org/config.v0
 
+before_install:
+  - bash <(curl -s https://aahframework.org/base-before-install) "essentials vfs forge"
+
 install:
-  - git config --global http.https://aahframework.org.followRedirects true
   - go get -t -v ./...
 
 script:

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016-2017 Jeevanandam M., https://myjeeva.com <jeeva@myjeeva.com>
+Copyright (c) 2016-2018 Jeevanandam M., https://myjeeva.com <jeeva@myjeeva.com>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,19 +1,21 @@
-# config - aah framework
+<p align="center">
+  <img src="https://cdn.aahframework.org/assets/img/aah-logo-64x64.png" />
+  <h2 align="center">Config Library by aah framework</h2>
+</p>
+<p align="center">
+  <p align="center"><a href="https://travis-ci.org/go-aah/config"><img src="https://travis-ci.org/go-aah/config.svg?branch=master" alt="Build Status"></a> <a href="https://codecov.io/gh/go-aah/config/branch/master"><img src="https://codecov.io/gh/go-aah/config/branch/master/graph/badge.svg" alt="Code Coverage"></a> <a href="https://goreportcard.com/report/aahframework.org/config.v0"><img src="https://goreportcard.com/badge/aahframework.org/config.v0" alt="Go Report Card"></a> <a href="https://github.com/go-aah/config/releases/latest"><img src="https://img.shields.io/badge/version-0.5.0-blue.svg" alt="Release Version"></a> <a href="https://godoc.org/aahframework.org/config.v0"><img src="https://godoc.org/aahframework.org/config.v0?status.svg" alt="Godoc"></a> <a href="https://twitter.com/aahframework"><img src="https://img.shields.io/badge/twitter-@aahframework-55acee.svg" alt="Twitter @aahframework"></a></p>
+</p>
 
-[![Build Status](https://travis-ci.org/go-aah/config.svg?branch=master)](https://travis-ci.org/go-aah/config)  [![codecov](https://codecov.io/gh/go-aah/config/branch/master/graph/badge.svg)](https://codecov.io/gh/go-aah/config/branch/master)  [![Go Report Card](https://goreportcard.com/badge/aahframework.org/config.v0)](https://goreportcard.com/report/aahframework.org/config.v0)
-[![Version](https://img.shields.io/badge/version-0.4.2-blue.svg)](https://github.com/go-aah/config/releases/latest) [![GoDoc](https://godoc.org/aahframework.org/config.v0?status.svg)](https://godoc.org/aahframework.org/config.v0)  [![License](https://img.shields.io/github/license/go-aah/config.svg)](LICENSE) [![Twitter](https://img.shields.io/badge/twitter-@aahframework-55acee.svg)](https://twitter.com/aahframework)
+`config` library is powerful and flexible to configuration file/structure. It internally uses `forge` library developed by [@brettlangdon](htpps://github.com/brettlangdon) and adds further functionality to it. Syntax is very similar to Typesafe HOCON :satisfied:. Config library is used across the aah framework.
 
-***v0.4.2 [released](https://github.com/go-aah/config/releases/latest) and tagged on Jul 30, 2017***
+### News
 
-`config` library is powerful and flexible for configuration purpose. It's thin layer around `forge` config syntax which is very similar to Typesafe HOCON syntax :satisfied:. aah framework and it's modules is powered with `aah/config` library.
+  * `v0.5.0` [released](https://github.com/go-aah/config/releases/latest) and tagged on Jun 20, 2018.
 
-*`config` developed for aah framework. However it's an independent library, can be used separately with any `Go` language project. Feel free to use it.*
+## Installation
 
-# Installation
-#### Stable Version - Production Ready
 ```bash
-# install the library
 go get -u aahframework.org/config.v0
 ```
 
-Visit official website https://aahframework.org to learn more.
+Visit official website https://aahframework.org to learn more about `aah` framework.

config.go

@@ -1,5 +1,5 @@
 // Copyright (c) Jeevanandam M. (https://github.com/jeevatkm)
-// go-aah/config source code and usage is governed by a MIT style
+// aahframework.org/config source code and usage is governed by a MIT style
 // license that can be found in the LICENSE file.
 
 // Package config is nice and handy layer built around `forge` config syntax;
@@ -14,15 +14,26 @@ import (
 	"fmt"
 	"strings"
 
-	"aahframework.org/essentials.v0"
 	"aahframework.org/forge.v0"
+	"aahframework.org/vfs.v0"
 )
 
-// Version no. of aahframework.org/config library
-var Version = "0.4.2"
-
 var errKeyNotFound = errors.New("config: not found")
 
+//‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+// Package methods
+//______________________________________________________________________________
+
+// NewEmpty method returns aah empty config instance.
+func NewEmpty() *Config {
+	cfg, _ := ParseString("")
+	return cfg
+}
+
+//‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+// Config type and methods
+//______________________________________________________________________________
+
 // Config handles the configuration values and enables environment profile's,
 // merge, etc. Also it provide nice and handly methods for accessing config values.
 // Internally `aah config` uses `forge syntax` developed by `https://github.com/brettlangdon`.
@@ -60,6 +71,9 @@ func (c *Config) HasProfile(profile string) bool {
 
 // IsProfileEnabled returns true of profile enabled otherwise false
 func (c *Config) IsProfileEnabled() bool {
+	if c == nil {
+		return false
+	}
 	return len(c.profile) > 0
 }
 
@@ -203,9 +217,9 @@ func (c *Config) Get(key string) (interface{}, bool) {
 	return c.get(key)
 }
 
-//‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+//‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
 // List methods
-//___________________________________
+//______________________________________________________________________________
 
 // StringList method returns the string slice value for the given key.
 // 		Eaxmple:-
@@ -300,9 +314,9 @@ func (c *Config) Int64List(key string) ([]int64, bool) {
 	return values, true
 }
 
-//‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
-// Setter methods
-//___________________________________
+//‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+// Config Setter methods
+//______________________________________________________________________________
 
 // SetString sets the given value string for config key
 // First it tries to get value within enabled profile
@@ -377,36 +391,33 @@ func (c *Config) ToJSON() string {
 	return "{}"
 }
 
-//‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
-// Configuration loading methods
-//___________________________________
+//‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+// Config load/parse methods
+//______________________________________________________________________________
 
-// LoadFile loads the configuration given config file
+// LoadFile loads the configuration from given config file.
 func LoadFile(file string) (*Config, error) {
-	if !ess.IsFileExists(file) {
-		return nil, fmt.Errorf("configuration does not exists: %v", file)
-	}
-
-	setting, err := forge.ParseFile(file)
-	if err != nil {
-		return nil, err
-	}
+	return VFSLoadFile(nil, file)
+}
 
-	return &Config{
-		cfg: setting,
-	}, nil
+// VFSLoadFile loads the configuration from given vfs and config file.
+func VFSLoadFile(fs *vfs.VFS, file string) (*Config, error) {
+	setting, err := loadFile(fs, file)
+	return &Config{cfg: setting}, err
 }
 
-// LoadFiles loads the configuration given config files and
-// does merging of configuration in the order they are given
+// LoadFiles loads the configuration from given config files.
+// It does merging of configuration in the order they are given.
 func LoadFiles(files ...string) (*Config, error) {
+	return VFSLoadFiles(nil, files...)
+}
+
+// VFSLoadFiles loads the configuration from given config vfs and files.
+// It does merging of configuration in the order they are given.
+func VFSLoadFiles(fs *vfs.VFS, files ...string) (*Config, error) {
 	settings := forge.NewSection()
 	for _, file := range files {
-		if !ess.IsFileExists(file) {
-			return nil, fmt.Errorf("configuration does not exists: %v", file)
-		}
-
-		setting, err := forge.ParseFile(file)
+		setting, err := loadFile(fs, file)
 		if err != nil {
 			return nil, err
 		}
@@ -416,9 +427,7 @@ func LoadFiles(files ...string) (*Config, error) {
 		}
 	}
 
-	return &Config{
-		cfg: settings,
-	}, nil
+	return &Config{cfg: settings}, nil
 }
 
 // ParseString parses the configuration values from string
@@ -427,15 +436,19 @@ func ParseString(cfg string) (*Config, error) {
 	if err != nil {
 		return nil, err
 	}
-
-	return &Config{
-		cfg: setting,
-	}, nil
+	return &Config{cfg: setting}, nil
 }
 
-//‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
-// Unexported methods
-//___________________________________
+//‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+// Config unexported methods
+//______________________________________________________________________________
+
+func loadFile(fs *vfs.VFS, file string) (*forge.Section, error) {
+	if _, err := vfs.Stat(fs, file); err != nil {
+		return nil, fmt.Errorf("configuration does not exists: %v", file)
+	}
+	return forge.VFSParseFile(fs, file)
+}
 
 func (c *Config) prepareKey(key string) string {
 	if c.IsProfileEnabled() {
@@ -472,6 +485,10 @@ func (c *Config) getListValue(key string) (*forge.List, bool) {
 }
 
 func (c *Config) getraw(key string) (forge.Value, bool) {
+	if c == nil || c.cfg == nil {
+		return nil, false
+	}
+
 	v, err := c.cfg.Resolve(key)
 	if err != nil {
 		return nil, false // not found

config_test.go

@@ -16,7 +16,7 @@ import (
 )
 
 func TestKeysAndKeysByPath(t *testing.T) {
-	cfg := initFile(t, join(getTestdataPath(), "test.cfg"))
+	cfg := initFile(t, join(testdataBaseDir(), "test.cfg"))
 	keys := cfg.Keys()
 	assert.True(t, ess.IsSliceContainsString(keys, "prod"))
 	assert.True(t, ess.IsSliceContainsString(keys, "dev"))
@@ -37,7 +37,7 @@ func TestKeysAndKeysByPath(t *testing.T) {
 }
 
 func TestGetSubConfig(t *testing.T) {
-	cfg := initFile(t, join(getTestdataPath(), "test.cfg"))
+	cfg := initFile(t, join(testdataBaseDir(), "test.cfg"))
 
 	prod, found1 := cfg.GetSubConfig("prod")
 	assert.NotNil(t, prod)
@@ -64,7 +64,7 @@ func TestGetSubConfig(t *testing.T) {
 }
 
 func TestIsExists(t *testing.T) {
-	cfg := initFile(t, join(getTestdataPath(), "test.cfg"))
+	cfg := initFile(t, join(testdataBaseDir(), "test.cfg"))
 	found := cfg.IsExists("prod.string")
 	assert.True(t, found)
 
@@ -77,7 +77,7 @@ func TestIsExists(t *testing.T) {
 }
 
 func TestStringValues(t *testing.T) {
-	cfg := initFile(t, join(getTestdataPath(), "test.cfg"))
+	cfg := initFile(t, join(testdataBaseDir(), "test.cfg"))
 
 	v1, _ := cfg.String("string")
 	assert.Equal(t, "a string", v1)
@@ -100,7 +100,7 @@ func TestStringValues(t *testing.T) {
 }
 
 func TestIntValues(t *testing.T) {
-	bytes, _ := ioutil.ReadFile(join(getTestdataPath(), "test.cfg"))
+	bytes, _ := ioutil.ReadFile(join(testdataBaseDir(), "test.cfg"))
 	cfg := initString(t, string(bytes))
 
 	v1, _ := cfg.Int("int")
@@ -136,7 +136,7 @@ func TestIntValues(t *testing.T) {
 }
 
 func TestFloatValues(t *testing.T) {
-	cfg := initFile(t, join(getTestdataPath(), "test.cfg"))
+	cfg := initFile(t, join(testdataBaseDir(), "test.cfg"))
 
 	v1, _ := cfg.Float32("float32")
 	assert.Equal(t, float32(32.2), v1)
@@ -180,7 +180,7 @@ func TestFloatValues(t *testing.T) {
 }
 
 func TestBoolValues(t *testing.T) {
-	bytes, _ := ioutil.ReadFile(join(getTestdataPath(), "test.cfg"))
+	bytes, _ := ioutil.ReadFile(join(testdataBaseDir(), "test.cfg"))
 	cfg := initString(t, string(bytes))
 
 	v1, _ := cfg.Bool("truevalue")
@@ -215,6 +215,12 @@ func TestStringList(t *testing.T) {
 build {
   # Valid exclude patterns refer: https://golang.org/pkg/path/filepath/#Match
   excludes = ["*_test.go", ".*", "*.bak", "*.tmp", "vendor"]
+
+	keys = [
+		"X3pGTSOuJeEVw989IJ/cEtXUEmy52zs1TZQrU06KUKg=",
+		"MHJYVThihUrJcxW6wcqyOISTXIsInsdj3xK8QrZbHec=",
+		"GGekerhihUrJcxW6wcqyOISTXIsInsdj3xK8QrZbHec=",
+	]
 }`)
 
 	lst1, found1 := cfg.StringList("build.excludes")
@@ -225,6 +231,10 @@ build {
 	lst2, found2 := cfg.StringList("name")
 	assert.False(t, found2)
 	assert.True(t, len(lst2) == 0)
+
+	v, f := cfg.StringList("build.keys")
+	assert.True(t, f)
+	assert.True(t, len(v) == 3)
 }
 
 func TestIntAndInt64List(t *testing.T) {
@@ -253,7 +263,7 @@ func TestIntAndInt64List(t *testing.T) {
 }
 
 func TestProfile(t *testing.T) {
-	cfg := initFile(t, join(getTestdataPath(), "test.cfg"))
+	cfg := initFile(t, join(testdataBaseDir(), "test.cfg"))
 
 	t.Log(cfg.cfg.Keys())
 
@@ -266,9 +276,7 @@ func TestProfile(t *testing.T) {
 }
 
 func TestConfigLoadNotExists(t *testing.T) {
-	testdataPath := getTestdataPath()
-
-	_, err := LoadFile(join(testdataPath, "not_exists.cfg"))
+	_, err := LoadFile(join(testdataBaseDir(), "not_exists.cfg"))
 	assert.True(t, strings.HasPrefix(err.Error(), "configuration does not exists:"))
 
 	_, err = ParseString(`
@@ -326,7 +334,7 @@ prod {
 }
 
 func TestLoadFiles(t *testing.T) {
-	testdataPath := getTestdataPath()
+	testdataPath := testdataBaseDir()
 
 	cfg, err := LoadFiles(
 		join(testdataPath, "test-1.cfg"),
@@ -361,7 +369,7 @@ func TestLoadFiles(t *testing.T) {
 }
 
 func TestNestedKeyWithProfile(t *testing.T) {
-	testdataPath := getTestdataPath()
+	testdataPath := testdataBaseDir()
 
 	cfg, err := LoadFiles(join(testdataPath, "test-4.cfg"))
 	assert.FailNowOnError(t, err, "loading failed")
@@ -389,7 +397,7 @@ func TestNestedKeyWithProfile(t *testing.T) {
 }
 
 func TestConfigSetValues(t *testing.T) {
-	testdataPath := getTestdataPath()
+	testdataPath := testdataBaseDir()
 	cfg, err := LoadFiles(join(testdataPath, "test-4.cfg"))
 	assert.FailNowOnError(t, err, "loading failed")
 
@@ -419,7 +427,6 @@ func initString(t *testing.T, configStr string) *Config {
 func initFile(t *testing.T, file string) *Config {
 	cfg, err := LoadFile(file)
 	assert.FailNowOnError(t, err, "")
-
 	return cfg
 }
 
@@ -428,7 +435,7 @@ func setProfileForTest(t *testing.T, cfg *Config, profile string) {
 	assert.FailNowOnError(t, err, "")
 }
 
-func getTestdataPath() string {
+func testdataBaseDir() string {
 	wd, _ := os.Getwd()
 	return filepath.Join(wd, "testdata")
 }