simplify config search (#12)

* dep cleanup
* simplify config locations

Author: bryanklewis

CHANGELOG.md

@@ -12,13 +12,14 @@ Template:
 ### Fixed
 ```
 
-## v0.4.0 - 18 December 2019
+## v0.4.1 - 18 December 2019
 ### Changed
 - build with golang 1.13.5
 - use azure event hubs sdk v3
 - bump project dependencies
 ### Removed
 - dead code getCounterValue, part of throughput calc
+- search for config in home directory
 ### Fixed
 - linting simplify sample.Metric[]
 

README.md

@@ -108,7 +108,6 @@ The adapter will search for a TOML formatted file with the name `prometheus-even
 1. Directory where executable is located
 2. On unix-like systems: */etc/prometheus-eventhubs-adapter/prometheus-eventhubs-adapter.toml*
 3. Current working directory
-4. OS-specific home directory
 
 Example TOML file: [`prometheus-eventhubs-adapter.toml`](./prometheus-eventhubs-adapter.toml)
 

config.go

@@ -23,7 +23,6 @@ import (
 	"runtime"
 	"time"
 
-	homedir "github.com/mitchellh/go-homedir"
 	"github.com/spf13/pflag"
 	"github.com/spf13/viper"
 
@@ -125,7 +124,7 @@ func initConfig() {
 
 	// Config file search: Unix-like system configuration directory
 	if runtime.GOOS != "windows" {
-		viper.AddConfigPath("/etc/" + AppName + "/")
+		viper.AddConfigPath("/etc/" + AppName)
 	}
 
 	// Config file search: current working directory
@@ -135,13 +134,6 @@ func initConfig() {
 		viper.AddConfigPath(workingpath)
 	}
 
-	// Config file search: OS-specific home directory
-	if homepath, err := homedir.Dir(); err != nil {
-		log.Debug().Err(err).Msg("failed to detect home directory")
-	} else {
-		viper.AddConfigPath(homepath)
-	}
-
 	// Read config file
 	if err := viper.ReadInConfig(); err != nil {
 		if _, ok := err.(viper.ConfigFileNotFoundError); ok {

go.mod

@@ -18,7 +18,6 @@ require (
 	github.com/leodido/go-urn v1.2.0 // indirect
 	github.com/linkedin/goavro/v2 v2.9.7
 	github.com/mattn/go-isatty v0.0.11 // indirect
-	github.com/mitchellh/go-homedir v1.1.0
 	github.com/pelletier/go-toml v1.6.0 // indirect
 	github.com/prometheus/client_golang v1.2.1
 	github.com/prometheus/client_model v0.0.0-20191202183732-d1d2010b5bee // indirect