feat: Move away from packr; Use embed instead

.github/workflows/ci.yml

@@ -4,7 +4,7 @@ on:
   push:
     branches:
       - main
-      - 'v*'
+      - "v*"
   pull_request: {}
 
 jobs:
@@ -14,17 +14,17 @@ jobs:
 
     strategy:
       matrix:
-        go-version: [1.12.x, 1.13.x]
+        go-version: [1.21.x]
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     env:
       ENV: test
 
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
 
       - name: Install Go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v4
         with:
           go-version: ${{matrix.go-version}}
 

README.md

@@ -1,20 +1,15 @@
-# go-config ![](https://github.com/neighborly/go-config/workflows/CI/badge.svg)
+# go-config ![](https://github.com/nrfta/go-config/workflows/CI/badge.svg)
 
 This package loads config information into a struct. It uses [viper](https://github.com/spf13/viper).
 
 ## Installation
 
 ```sh
-go get github.com/neighborly/go-config
+go get github.com/nrfta/go-config/v2
 ```
 
 ## Usage
 
-To load the config data into a struct you will need two parameters
-
-1) a variable of type **box**:   To get the box type you will need to import ``` github.com/gobuffalo/packr``` . The box variable will hold the config data in the binary
-2) a variable of type **"customStruct"** where customStruct is a struct you define to mirror the key values of your config
-
 ### Example
 
 Consider this example config content
@@ -39,8 +34,9 @@ In the file you want to load the config in do the following:
 // config/config.go
 
 import (
-	"github.com/gobuffalo/packr"
-	"github.com/neighborly/go-config"
+    "embed"
+
+	"github.com/nrfta/go-config/v2"
 )
 
 // this MyAppConfig struct is the "custom struct" it has the same attributes that mirror the config json above
@@ -54,13 +50,16 @@ type MyAppConfig struct {
 	SegmentWriteKey string `mapstructure:"segment_write_key"`
 }
 
+//go:embed config.json config_test.json
+var fs embed.FS
+
 // the definition of our two paramaters
 var (
 	Config MyAppConfig
 )
 
 func init() {
-	err := config.Load(packr.NewBox("."), &Config) // now the config data has been loaded into appConfig
+	err := config.Load(fs, &Config) // now the config data has been loaded into Config
 	if err != nil {
 		panic(err)
 	}

config.go

@@ -2,14 +2,14 @@ package config
 
 import (
 	"bytes"
+	"embed"
+	"errors"
+	"fmt"
 	"os"
 	"reflect"
 	"strings"
 
-	"github.com/gobuffalo/packr"
 	"github.com/spf13/viper"
-
-	"github.com/neighborly/go-errors"
 )
 
 // MetaConfig holds configuration for environment name and service name
@@ -19,7 +19,7 @@ type MetaConfig struct {
 }
 
 // Load config from file then from environment variables
-func Load(box packr.Box, config interface{}) error {
+func Load(fs embed.FS, config interface{}) error {
 	configType := "json"
 	viper.SetConfigType(configType)
 
@@ -30,13 +30,14 @@ func Load(box packr.Box, config interface{}) error {
 	viper.SetConfigName(configName)
 
 	configFile := configName + "." + configType
-	contents, err := box.Find(configFile)
+
+	contents, err := fs.ReadFile(configFile)
 	if err != nil {
-		return errors.Wrapf(err, "unable to read config from %s", configFile)
+		return fmt.Errorf("unable to read config from %s: %w", configFile, err)
 	}
 
 	if err := viper.ReadConfig(bytes.NewReader(contents)); err != nil {
-		return errors.Wrapf(err, "unable to read config from %s", configFile)
+		return fmt.Errorf("unable to read config from %s: %w", configFile, err)
 	}
 
 	return unmarshalConfig(config)
@@ -48,7 +49,11 @@ func unmarshalConfig(config interface{}) error {
 
 	// Read the config file again and consider environment variables at the same time
 	if err := viper.Unmarshal(config); err != nil {
-		return errors.Wrapf(err, "unable to unmarshal config at %s", viper.ConfigFileUsed())
+		return fmt.Errorf(
+			"unable to unmarshal config at %s: %w",
+			viper.ConfigFileUsed(),
+			err,
+		)
 	}
 
 	// Set the environment to be "test" if tests are being run.

tests/unit/config_test.go → config_test.go

@@ -1,15 +1,18 @@
 package config_test
 
 import (
+	"embed"
 	"os"
 
 	. "github.com/onsi/ginkgo"
 	. "github.com/onsi/gomega"
 
-	"github.com/gobuffalo/packr"
-	"github.com/neighborly/go-config"
+	"github.com/nrfta/go-config/v2"
 )
 
+//go:embed config_test.json
+var fs embed.FS
+
 type MyAppConfig struct {
 	Meta config.MetaConfig
 
@@ -21,13 +24,12 @@ type MyAppConfig struct {
 }
 
 var (
-	testBox    = packr.NewBox(".")
 	testConfig MyAppConfig
 )
 
 var _ = Describe("Test Load ", func() {
 	It("It should load config file", func() {
-		Expect(config.Load(testBox, &testConfig)).To(Succeed())
+		Expect(config.Load(fs, &testConfig)).To(Succeed())
 
 		Expect(testConfig.Meta.Environment).To(Equal("test"))
 		Expect(testConfig.Meta.ServiceName).To(Equal("my-app"))
@@ -43,7 +45,7 @@ var _ = Describe("Test Load With Environment Variables", func() {
 		os.Setenv("PORT", "5001")
 		os.Setenv("META_SERVICE_NAME", "service-api")
 
-		Expect(config.Load(testBox, &testConfig)).To(Succeed())
+		Expect(config.Load(fs, &testConfig)).To(Succeed())
 
 		Expect(testConfig.Meta.Environment).To(Equal("test"))
 		Expect(testConfig.Meta.ServiceName).To(Equal("service-api"))

go.mod

@@ -1,11 +1,36 @@
-module github.com/neighborly/go-config
+module github.com/nrfta/go-config/v2
 
-go 1.13
+go 1.21
 
 require (
-	github.com/gobuffalo/packr v1.30.1
-	github.com/neighborly/go-errors v0.2.0
 	github.com/onsi/ginkgo v1.11.0
 	github.com/onsi/gomega v1.8.1
-	github.com/spf13/viper v1.6.2
+	github.com/spf13/viper v1.17.0
+)
+
+require (
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/hpcloud/tail v1.0.0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
+	github.com/sagikazarmark/locafero v0.3.0 // indirect
+	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.10.0 // indirect
+	github.com/spf13/cast v1.5.1 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/exp v0.0.0-20231006140011-7918f672742d // indirect
+	golang.org/x/net v0.15.0 // indirect
+	golang.org/x/sys v0.13.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
+	gopkg.in/fsnotify.v1 v1.4.7 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )