@@ -19,7 +19,12 @@ package config
1919
2020import (
2121 "fmt"
22+ "os"
23+ "path/filepath"
24+ "runtime"
2225
26+ "github.com/arduino/go-paths-helper"
27+ "github.com/arduino/go-win32-utils"
2328 "github.com/spf13/viper"
2429)
2530
@@ -33,16 +38,61 @@ type Config struct {
3338// Retrieve returns the actual parameters contained in the
3439// configuration file, if any. Returns error if no config file is found.
3540func Retrieve () (* Config , error ) {
36- conf := & Config {}
41+ configDir , err := searchConfigDir ()
42+ if err != nil {
43+ return nil , fmt .Errorf ("can't get config directory: %w" , err )
44+ }
45+
3746 v := viper .New ()
3847 v .SetConfigName (Filename )
39- v .AddConfigPath ("." )
40- err : =v .ReadInConfig ()
48+ v .AddConfigPath (configDir )
49+ err = v .ReadInConfig ()
4150 if err != nil {
4251 err = fmt .Errorf ("%s: %w" , "retrieving config file" , err )
4352 return nil , err
4453 }
4554
55+ conf := & Config {}
4656 v .Unmarshal (conf )
4757 return conf , nil
4858}
59+
60+ func searchConfigDir () (string , error ) {
61+ // Search in current directory and its parents.
62+ if cwd , err := paths .Getwd (); err == nil {
63+ for _ , path := range cwd .Parents () {
64+ if path .Join (Filename + ".yaml" ).Exist () || path .Join (Filename + ".json" ).Exist () {
65+ return path .String (), nil
66+ }
67+ }
68+ }
69+
70+ // Search in arduino-cli's default config directory.
71+ userHomeDir , err := os .UserHomeDir ()
72+ if err != nil {
73+ return "" , fmt .Errorf ("unable to get user home dir: %w" , err )
74+ }
75+
76+ var path * paths.Path
77+ switch runtime .GOOS {
78+ case "darwin" :
79+ path = paths .New (filepath .Join (userHomeDir , "Library" , "Arduino15" ))
80+ case "windows" :
81+ localAppDataPath , err := win32 .GetLocalAppDataFolder ()
82+ if err != nil {
83+ return "" , fmt .Errorf ("unable to get local app data folder: %w" , err )
84+ }
85+ path = paths .New (filepath .Join (localAppDataPath , "Arduino15" ))
86+ default : // linux, android, *bsd, plan9 and other Unix-like systems
87+ path = paths .New (filepath .Join (userHomeDir , ".arduino15" ))
88+ }
89+
90+ if path .Join (Filename + ".yaml" ).Exist () || path .Join (Filename + ".json" ).Exist () {
91+ return path .String (), nil
92+ }
93+
94+ return "" , fmt .Errorf (
95+ "didn't find config file in the current directory, its parents or in %s." ,
96+ path .String (),
97+ )
98+ }
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