feat: implement app cache deletion

Introduce a `cache clean <app-id>` command to clean app cache.
This implementation also tries to stop the related app if running. In
case we do not care about that we can simply rm -rf `.cache/*`.

Closes #52

Author: alessio-perugini

cmd/arduino-app-cli/cache/cache.go

@@ -0,0 +1,18 @@
+package cache
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/arduino/arduino-app-cli/internal/orchestrator/config"
+)
+
+func NewCacheCmd(cfg config.Configuration) *cobra.Command {
+	appCmd := &cobra.Command{
+		Use:   "cache",
+		Short: "Manage Arduino App cache",
+	}
+
+	appCmd.AddCommand(newCacheCleanCmd(cfg))
+
+	return appCmd
+}

cmd/arduino-app-cli/cache/clean.go

@@ -0,0 +1,59 @@
+package cache
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/spf13/cobra"
+
+	cmdApp "github.com/arduino/arduino-app-cli/cmd/arduino-app-cli/app"
+	"github.com/arduino/arduino-app-cli/cmd/arduino-app-cli/completion"
+	"github.com/arduino/arduino-app-cli/cmd/feedback"
+	"github.com/arduino/arduino-app-cli/internal/orchestrator"
+	"github.com/arduino/arduino-app-cli/internal/orchestrator/app"
+	"github.com/arduino/arduino-app-cli/internal/orchestrator/config"
+)
+
+func newCacheCleanCmd(cfg config.Configuration) *cobra.Command {
+	appCmd := &cobra.Command{
+		Use:   "clean",
+		Short: "Delete app cache",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if len(args) == 0 {
+				return cmd.Help()
+			}
+			app, err := cmdApp.Load(args[0])
+			if err != nil {
+				return err
+			}
+			return cacheCleanHandler(cmd.Context(), app)
+		},
+		ValidArgsFunction: completion.ApplicationNames(cfg),
+	}
+
+	return appCmd
+}
+
+func cacheCleanHandler(ctx context.Context, app app.ArduinoApp) error {
+	if err := orchestrator.CleanAppCache(ctx, app); err != nil {
+		feedback.Fatal(err.Error(), feedback.ErrGeneric)
+	}
+	feedback.PrintResult(cacheCleanResult{
+		AppName: app.Name,
+		Path:    app.ProvisioningStateDir().String(),
+	})
+	return nil
+}
+
+type cacheCleanResult struct {
+	AppName string `json:"appName"`
+	Path    string `json:"path"`
+}
+
+func (r cacheCleanResult) String() string {
+	return fmt.Sprintf("✓ Cache of %q App cleaned", r.AppName)
+}
+
+func (r cacheCleanResult) Data() interface{} {
+	return r
+}

cmd/arduino-app-cli/main.go

@@ -26,6 +26,7 @@ import (
 
 	"github.com/arduino/arduino-app-cli/cmd/arduino-app-cli/app"
 	"github.com/arduino/arduino-app-cli/cmd/arduino-app-cli/brick"
+	"github.com/arduino/arduino-app-cli/cmd/arduino-app-cli/cache"
 	"github.com/arduino/arduino-app-cli/cmd/arduino-app-cli/completion"
 	"github.com/arduino/arduino-app-cli/cmd/arduino-app-cli/config"
 	"github.com/arduino/arduino-app-cli/cmd/arduino-app-cli/daemon"
@@ -78,6 +79,7 @@ func run(configuration cfg.Configuration) error {
 		config.NewConfigCmd(configuration),
 		system.NewSystemCmd(configuration),
 		version.NewVersionCmd(Version),
+		cache.NewCacheCmd(configuration),
 	)
 
 	ctx := context.Background()

go.mod

@@ -129,7 +129,7 @@ require (
 	github.com/fsnotify/fsnotify v1.9.0 // indirect
 	github.com/fvbommel/sortorder v1.1.0 // indirect
 	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
-	github.com/getkin/kin-openapi v0.132.0 // indirect
+	github.com/getkin/kin-openapi v0.133.0 // indirect
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.6.2 // indirect
 	github.com/go-git/go-git/v5 v5.16.2 // indirect
@@ -206,7 +206,7 @@ require (
 	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f // indirect
-	github.com/oapi-codegen/oapi-codegen/v2 v2.5.0 // indirect
+	github.com/oapi-codegen/oapi-codegen/v2 v2.5.1 // indirect
 	github.com/oasdiff/yaml v0.0.0-20250309154309-f31be36b4037 // indirect
 	github.com/oasdiff/yaml3 v0.0.0-20250309153720-d2182401db90 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
@@ -257,6 +257,7 @@ require (
 	github.com/ulikunitz/xz v0.5.15 // indirect
 	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
 	github.com/vmware-labs/yaml-jsonpath v0.3.2 // indirect
+	github.com/woodsbury/decimal128 v1.3.0 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	github.com/xanzy/ssh-agent v0.3.3 // indirect
 	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect

go.sum

@@ -312,6 +312,8 @@ github.com/fxamacker/cbor/v2 v2.7.0 h1:iM5WgngdRBanHcxugY4JySA0nk1wZorNOpTgCMedv
 github.com/fxamacker/cbor/v2 v2.7.0/go.mod h1:pxXPTn3joSm21Gbwsv0w9OSA2y1HFR9qXEeXQVeNoDQ=
 github.com/getkin/kin-openapi v0.132.0 h1:3ISeLMsQzcb5v26yeJrBcdTCEQTag36ZjaGk7MIRUwk=
 github.com/getkin/kin-openapi v0.132.0/go.mod h1:3OlG51PCYNsPByuiMB0t4fjnNlIDnaEDsjiKUV8nL58=
+github.com/getkin/kin-openapi v0.133.0 h1:pJdmNohVIJ97r4AUFtEXRXwESr8b0bD721u/Tz6k8PQ=
+github.com/getkin/kin-openapi v0.133.0/go.mod h1:boAciF6cXk5FhPqe/NQeBTeenbjqU4LhWBf09ILVvWE=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/gliderlabs/ssh v0.3.8 h1:a4YXD1V7xMF9g5nTkdfnja3Sxy1PVDCj1Zg4Wb8vY6c=
 github.com/gliderlabs/ssh v0.3.8/go.mod h1:xYoytBv1sV0aL3CavoDuJIQNURXkkfPA/wxQ1pL1fAU=
@@ -678,6 +680,8 @@ github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
 github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=
 github.com/oapi-codegen/oapi-codegen/v2 v2.5.0 h1:iJvF8SdB/3/+eGOXEpsWkD8FQAHj6mqkb6Fnsoc8MFU=
 github.com/oapi-codegen/oapi-codegen/v2 v2.5.0/go.mod h1:fwlMxUEMuQK5ih9aymrxKPQqNm2n8bdLk1ppjH+lr9w=
+github.com/oapi-codegen/oapi-codegen/v2 v2.5.1 h1:5vHNY1uuPBRBWqB2Dp0G7YB03phxLQZupZTIZaeorjc=
+github.com/oapi-codegen/oapi-codegen/v2 v2.5.1/go.mod h1:ro0npU1BWkcGpCgGD9QwPp44l5OIZ94tB3eabnT7DjQ=
 github.com/oapi-codegen/runtime v1.1.1 h1:EXLHh0DXIJnWhdRPN2w4MXAzFyE4CskzhNLUmtpMYro=
 github.com/oapi-codegen/runtime v1.1.1/go.mod h1:SK9X900oXmPWilYR5/WKPzt3Kqxn/uS/+lbpREv+eCg=
 github.com/oasdiff/yaml v0.0.0-20250309154309-f31be36b4037 h1:G7ERwszslrBzRxj//JalHPu/3yz+De2J+4aLtSRlHiY=
@@ -909,6 +913,8 @@ github.com/warthog618/go-gpiocdev v0.9.1 h1:pwHPaqjJfhCipIQl78V+O3l9OKHivdRDdmgX
 github.com/warthog618/go-gpiocdev v0.9.1/go.mod h1:dN3e3t/S2aSNC+hgigGE/dBW8jE1ONk9bDSEYfoPyl8=
 github.com/warthog618/go-gpiosim v0.1.1 h1:MRAEv+T+itmw+3GeIGpQJBfanUVyg0l3JCTwHtwdre4=
 github.com/warthog618/go-gpiosim v0.1.1/go.mod h1:YXsnB+I9jdCMY4YAlMSRrlts25ltjmuIsrnoUrBLdqU=
+github.com/woodsbury/decimal128 v1.3.0 h1:8pffMNWIlC0O5vbyHWFZAt5yWvWcrHA+3ovIIjVWss0=
+github.com/woodsbury/decimal128 v1.3.0/go.mod h1:C5UTmyTjW3JftjUFzOVhC20BEQa2a4ZKOB5I6Zjb+ds=
 github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
 github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
 github.com/xanzy/ssh-agent v0.3.3 h1:+/15pJfg/RsTxqYcX6fHqOXZwwMP+2VyYWJeWM2qQFM=

internal/orchestrator/cache.go

@@ -0,0 +1,17 @@
+package orchestrator
+
+import (
+	"context"
+
+	"github.com/arduino/arduino-app-cli/internal/orchestrator/app"
+)
+
+// CleanAppCache removes the `.cache` folder. If it detects that the app is running
+// it tries to stop it first.
+func CleanAppCache(ctx context.Context, app app.ArduinoApp) error {
+	if app.AppComposeFilePath().Exist() {
+		// We try to remove docker related resources at best effort
+		_ = StopAndDestroyApp(ctx, app)
+	}
+	return app.ProvisioningStateDir().RemoveAll()
+}