[breaking] fix: remove tree config lookup

configuration/configuration.go

@@ -136,9 +136,9 @@ func GetDefaultBuiltinLibrariesDir() string {
 	return filepath.Join(getDefaultArduinoDataDir(), "libraries")
 }
 
-// FindConfigFileInArgsOrWorkingDirectory returns the config file path using the
+// FindConfigFileInArgs returns the config file path using the
 // argument '--config-file' (if specified) or looking in the current working dir
-func FindConfigFileInArgsOrWorkingDirectory(args []string) string {
+func FindConfigFileInArgs(args []string) string {
 	// Look for '--config-file' argument
 	for i, arg := range args {
 		if arg == "--config-file" {
@@ -147,23 +147,5 @@ func FindConfigFileInArgsOrWorkingDirectory(args []string) string {
 			}
 		}
 	}
-
-	// Look into current working directory
-	if cwd, err := paths.Getwd(); err != nil {
-		return ""
-	} else if configFile := searchConfigTree(cwd); configFile != nil {
-		return configFile.Join("arduino-cli.yaml").String()
-	}
 	return ""
 }
-
-func searchConfigTree(cwd *paths.Path) *paths.Path {
-	// go back up to root and search for the config file
-	for _, path := range cwd.Parents() {
-		if path.Join("arduino-cli.yaml").Exist() {
-			return path
-		}
-	}
-
-	return nil
-}

configuration/configuration_test.go

@@ -21,7 +21,6 @@ import (
 	"path/filepath"
 	"testing"
 
-	paths "github.com/arduino/go-paths-helper"
 	"github.com/stretchr/testify/require"
 )
 
@@ -39,45 +38,6 @@ func tmpDirOrDie() string {
 	return dir
 }
 
-func TestSearchConfigTreeNotFound(t *testing.T) {
-	tmp := tmpDirOrDie()
-	require.Empty(t, searchConfigTree(paths.New(tmp)))
-}
-
-func TestSearchConfigTreeSameFolder(t *testing.T) {
-	tmp := tmpDirOrDie()
-	defer os.RemoveAll(tmp)
-	_, err := os.Create(filepath.Join(tmp, "arduino-cli.yaml"))
-	require.Nil(t, err)
-	require.Equal(t, tmp, searchConfigTree(paths.New(tmp)).String())
-}
-
-func TestSearchConfigTreeInParent(t *testing.T) {
-	tmp := tmpDirOrDie()
-	defer os.RemoveAll(tmp)
-	target := filepath.Join(tmp, "foo", "bar")
-	err := os.MkdirAll(target, os.ModePerm)
-	require.Nil(t, err)
-	_, err = os.Create(filepath.Join(tmp, "arduino-cli.yaml"))
-	require.Nil(t, err)
-	require.Equal(t, tmp, searchConfigTree(paths.New(target)).String())
-}
-
-var result *paths.Path
-
-func BenchmarkSearchConfigTree(b *testing.B) {
-	tmp := tmpDirOrDie()
-	defer os.RemoveAll(tmp)
-	target := filepath.Join(tmp, "foo", "bar", "baz")
-	os.MkdirAll(target, os.ModePerm)
-
-	var s *paths.Path
-	for n := 0; n < b.N; n++ {
-		s = searchConfigTree(paths.New(target))
-	}
-	result = s
-}
-
 func TestInit(t *testing.T) {
 	tmp := tmpDirOrDie()
 	defer os.RemoveAll(tmp)
@@ -100,38 +60,15 @@ func TestInit(t *testing.T) {
 }
 
 func TestFindConfigFile(t *testing.T) {
-	configFile := FindConfigFileInArgsOrWorkingDirectory([]string{"--config-file"})
+	configFile := FindConfigFileInArgs([]string{"--config-file"})
 	require.Equal(t, "", configFile)
 
-	configFile = FindConfigFileInArgsOrWorkingDirectory([]string{"--config-file", "some/path/to/config"})
+	configFile = FindConfigFileInArgs([]string{"--config-file", "some/path/to/config"})
 	require.Equal(t, "some/path/to/config", configFile)
 
-	configFile = FindConfigFileInArgsOrWorkingDirectory([]string{"--config-file", "some/path/to/config/arduino-cli.yaml"})
+	configFile = FindConfigFileInArgs([]string{"--config-file", "some/path/to/config/arduino-cli.yaml"})
 	require.Equal(t, "some/path/to/config/arduino-cli.yaml", configFile)
 
-	configFile = FindConfigFileInArgsOrWorkingDirectory([]string{})
+	configFile = FindConfigFileInArgs([]string{})
 	require.Equal(t, "", configFile)
-
-	// Create temporary directories
-	tmp := tmpDirOrDie()
-	defer os.RemoveAll(tmp)
-	target := filepath.Join(tmp, "foo", "bar", "baz")
-	os.MkdirAll(target, os.ModePerm)
-	require.Nil(t, os.Chdir(target))
-
-	// Create a config file
-	f, err := os.Create(filepath.Join(target, "..", "..", "arduino-cli.yaml"))
-	require.Nil(t, err)
-	f.Close()
-
-	configFile = FindConfigFileInArgsOrWorkingDirectory([]string{})
-	require.Equal(t, filepath.Join(tmp, "foo", "arduino-cli.yaml"), configFile)
-
-	// Create another config file
-	f, err = os.Create(filepath.Join(target, "arduino-cli.yaml"))
-	require.Nil(t, err)
-	f.Close()
-
-	configFile = FindConfigFileInArgsOrWorkingDirectory([]string{})
-	require.Equal(t, filepath.Join(target, "arduino-cli.yaml"), configFile)
 }

docs/UPGRADING.md

@@ -2,6 +2,11 @@
 
 Here you can find a list of migration guides to handle breaking changes between releases of the CLI.
 
+## 0.32.0
+
+Configuration file lookup in current working directory and its parents is dropped. The command line flag `--config-file`
+must be specified to use an alternative configuration file from the one in the data directory.
+
 ## 0.31.0
 
 ### Added `post_install` script support for tools

docs/configuration.md

@@ -116,8 +116,6 @@ The configuration file must be named `arduino-cli`, with the appropriate file ex
 Configuration files in the following locations are recognized by Arduino CLI:
 
 1. Location specified by the [`--config-file`][arduino cli command reference] command line flag
-1. Current working directory
-1. Any parent directory of the current working directory (more immediate parents having higher precedence)
 1. Arduino CLI data directory (as configured by `directories.data`)
 
 If multiple configuration files are present, the one highest on the above list is used. Configuration files are not

docsgen/main.go

@@ -31,7 +31,7 @@ func main() {
 
 	os.MkdirAll(os.Args[1], 0755) // Create the output folder if it doesn't already exist
 
-	configuration.Settings = configuration.Init(configuration.FindConfigFileInArgsOrWorkingDirectory(os.Args))
+	configuration.Settings = configuration.Init(configuration.FindConfigFileInArgs(os.Args))
 	cli := cli.NewCommand()
 	cli.DisableAutoGenTag = true // Disable addition of auto-generated date stamp
 	err := doc.GenMarkdownTree(cli, os.Args[1])

internal/integrationtest/compile_1/compile_test.go

@@ -526,7 +526,7 @@ func compileWithExportBinariesConfig(t *testing.T, env *integrationtest.Environm
 	defer cli.WorkingDir().Join("arduino-cli.yaml").Remove()
 
 	// Test if arduino-cli config file written in the previous run has the `always_export_binaries` flag set.
-	stdout, _, err := cli.Run("config", "dump", "--format", "json")
+	stdout, _, err := cli.Run("config", "dump", "--format", "json", "--config-file", "arduino-cli.yaml")
 	require.NoError(t, err)
 	requirejson.Contains(t, stdout, `
 		{
@@ -536,7 +536,7 @@ func compileWithExportBinariesConfig(t *testing.T, env *integrationtest.Environm
 		}`)
 
 	// Test compilation with export binaries env var set
-	_, _, err = cli.Run("compile", "-b", fqbn, sketchPath.String())
+	_, _, err = cli.Run("compile", "-b", fqbn, "--config-file", "arduino-cli.yaml", sketchPath.String())
 	require.NoError(t, err)
 	require.DirExists(t, sketchPath.Join("build").String())
 
@@ -563,7 +563,7 @@ func compileWithInvalidUrl(t *testing.T, env *integrationtest.Environment, cli *
 	require.NoError(t, err)
 	defer cli.WorkingDir().Join("arduino-cli.yaml").Remove()
 
-	_, stderr, err := cli.Run("compile", "-b", fqbn, sketchPath.String())
+	_, stderr, err := cli.Run("compile", "-b", fqbn, "--config-file", "arduino-cli.yaml", sketchPath.String())
 	require.NoError(t, err)
 	require.Contains(t, string(stderr), "Error initializing instance: Loading index file: loading json index file")
 	expectedIndexfile := cli.DataDir().Join("package_example_index.json")
@@ -813,10 +813,10 @@ func TestCompileWithCustomLibraries(t *testing.T) {
 	require.NoError(t, err)
 
 	// Init the environment explicitly
-	_, _, err = cli.Run("update")
+	_, _, err = cli.Run("update", "--config-file", "arduino-cli.yaml")
 	require.NoError(t, err)
 
-	_, _, err = cli.Run("core", "install", "esp8266:esp8266")
+	_, _, err = cli.Run("core", "install", "esp8266:esp8266", "--config-file", "arduino-cli.yaml")
 	require.NoError(t, err)
 
 	sketchName := "sketch_with_multiple_custom_libraries"
@@ -825,7 +825,12 @@ func TestCompileWithCustomLibraries(t *testing.T) {
 
 	firstLib := sketchPath.Join("libraries1")
 	secondLib := sketchPath.Join("libraries2")
-	_, _, err = cli.Run("compile", "--libraries", firstLib.String(), "--libraries", secondLib.String(), "-b", fqbn, sketchPath.String())
+	_, _, err = cli.Run("compile", "--libraries",
+		firstLib.String(),
+		"--libraries", secondLib.String(),
+		"-b", fqbn,
+		"--config-file", "arduino-cli.yaml",
+		sketchPath.String())
 	require.NoError(t, err)
 }
 
@@ -839,26 +844,26 @@ func TestCompileWithArchivesAndLongPaths(t *testing.T) {
 	require.NoError(t, err)
 
 	// Init the environment explicitly
-	_, _, err = cli.Run("update")
+	_, _, err = cli.Run("update", "--config-file", "arduino-cli.yaml")
 	require.NoError(t, err)
 
 	// Install core to compile
-	_, _, err = cli.Run("core", "install", "esp8266:[email protected]")
+	_, _, err = cli.Run("core", "install", "esp8266:[email protected]", "--config-file", "arduino-cli.yaml")
 	require.NoError(t, err)
 
 	// Install test library
-	_, _, err = cli.Run("lib", "install", "ArduinoIoTCloud")
+	_, _, err = cli.Run("lib", "install", "ArduinoIoTCloud", "--config-file", "arduino-cli.yaml")
 	require.NoError(t, err)
 
-	stdout, _, err := cli.Run("lib", "examples", "ArduinoIoTCloud", "--format", "json")
+	stdout, _, err := cli.Run("lib", "examples", "ArduinoIoTCloud", "--format", "json", "--config-file", "arduino-cli.yaml")
 	require.NoError(t, err)
 	var libOutput []map[string]interface{}
 	err = json.Unmarshal(stdout, &libOutput)
 	require.NoError(t, err)
 	sketchPath := paths.New(libOutput[0]["library"].(map[string]interface{})["install_dir"].(string))
 	sketchPath = sketchPath.Join("examples", "ArduinoIoTCloud-Advanced")
 
-	_, _, err = cli.Run("compile", "-b", "esp8266:esp8266:huzzah", sketchPath.String())
+	_, _, err = cli.Run("compile", "-b", "esp8266:esp8266:huzzah", sketchPath.String(), "--config-file", "arduino-cli.yaml")
 	require.NoError(t, err)
 }
 
@@ -908,16 +913,19 @@ func TestCompileWithFullyPrecompiledLibrary(t *testing.T) {
 	// https://arduino.github.io/arduino-cli/latest/library-specification/#precompiled-binaries
 	wd, err := paths.Getwd()
 	require.NoError(t, err)
-	_, _, err = cli.Run("lib", "install", "--zip-path", wd.Parent().Join("testdata", "Arduino_TensorFlowLite-2.1.0-ALPHA-precompiled.zip").String())
+	_, _, err = cli.Run("lib", "install",
+		"--zip-path", wd.Parent().Join("testdata", "Arduino_TensorFlowLite-2.1.0-ALPHA-precompiled.zip").String(),
+		"--config-file", "arduino-cli.yaml",
+	)
 	require.NoError(t, err)
 	sketchFolder := cli.SketchbookDir().Join("libraries", "Arduino_TensorFlowLite", "examples", "hello_world")
 
 	// Install example dependency
-	_, _, err = cli.Run("lib", "install", "Arduino_LSM9DS1")
+	_, _, err = cli.Run("lib", "install", "Arduino_LSM9DS1", "--config-file", "arduino-cli.yaml")
 	require.NoError(t, err)
 
 	// Compile and verify dependencies detection for fully precompiled library is skipped
-	stdout, _, err := cli.Run("compile", "-b", fqbn, sketchFolder.String(), "-v")
+	stdout, _, err := cli.Run("compile", "-b", fqbn, "--config-file", "arduino-cli.yaml", sketchFolder.String(), "-v")
 	require.NoError(t, err)
 	require.Contains(t, string(stdout), "Skipping dependencies detection for precompiled library Arduino_TensorFlowLite")
 }