Add caching

examples/basic/testdo.sh

@@ -6,5 +6,8 @@ go build -o char ../../main.go
 
 echo "base"
 CHAR_DEV_MODE=true ./char do -h
+
+echo 
+echo "--------"
 echo "local_up"
 CHAR_DEV_MODE=false ./char do local_up -h

pkg/plugins/provider/git.go

@@ -8,6 +8,7 @@ import (
 	"os"
 	"os/exec"
 	"strings"
+	"time"
 
 	"git.front.kjuulh.io/kjuulh/char/pkg/schema"
 	"golang.org/x/sync/errgroup"
@@ -38,7 +39,8 @@ func (gpp *GitPluginProvider) FetchPlugins(ctx context.Context, registry string,
 				"%s/%s",
 				strings.TrimRight(baseDir, "/"), n.Hash(),
 			)
-			if _, err := os.Stat(dest); errors.Is(err, os.ErrNotExist) {
+			fileinfo, err := os.Stat(dest)
+			if errors.Is(err, os.ErrNotExist) {
 				log.Printf("fetching git plugin repo: %s", n)
 				return gpp.FetchPlugin(
 					ctx,
@@ -47,6 +49,15 @@ func (gpp *GitPluginProvider) FetchPlugins(ctx context.Context, registry string,
 					dest,
 				)
 			}
+			if fileinfo.ModTime().Add(time.Hour * 1).Before(time.Now()) {
+				log.Printf("fetching git plugin repo: %s as it is stale", n)
+				return gpp.FetchPlugin(
+					ctx,
+					registry,
+					plugin,
+					dest,
+				)
+			}
 
 			return nil
 
@@ -61,7 +72,10 @@ func (gpp *GitPluginProvider) FetchPlugins(ctx context.Context, registry string,
 }
 
 func (gpp *GitPluginProvider) FetchPlugin(ctx context.Context, registry string, plugin *schema.CharSchemaPlugin, dest string) error {
-	cloneUrl, err := plugin.Opts.GetCloneUrl(ctx, registry, &schema.CloneUrlOpt{
+	cloneUrl, err := plugin.Opts.GetCloneUrl(
+		ctx,
+		registry,
+		&schema.CloneUrlOpt{
 			Protocol: schema.GitProtocolSsh,
 			SshUser:  "git",
 		},
@@ -70,6 +84,12 @@ func (gpp *GitPluginProvider) FetchPlugin(ctx context.Context, registry string,
 		return err
 	}
 
+	if _, err := os.Stat(dest); !errors.Is(err, os.ErrNotExist) {
+		if err = os.RemoveAll(dest); err != nil {
+			return err
+		}
+	}
+
 	output, err := exec.Command(
 		"git",
 		"clone",