1package commands
2
3import (
4	"fmt"
5	"os"
6	"path/filepath"
7
8	"github.com/spf13/cobra"
9
10	"github.com/golangci/golangci-lint/internal/cache"
11	"github.com/golangci/golangci-lint/pkg/fsutils"
12	"github.com/golangci/golangci-lint/pkg/logutils"
13)
14
15func (e *Executor) initCache() {
16	cacheCmd := &cobra.Command{
17		Use:   "cache",
18		Short: "Cache control and information",
19		Run: func(cmd *cobra.Command, args []string) {
20			if len(args) != 0 {
21				e.log.Fatalf("Usage: golangci-lint cache")
22			}
23			if err := cmd.Help(); err != nil {
24				e.log.Fatalf("Can't run cache: %s", err)
25			}
26		},
27	}
28	e.rootCmd.AddCommand(cacheCmd)
29
30	cacheCmd.AddCommand(&cobra.Command{
31		Use:   "clean",
32		Short: "Clean cache",
33		Run:   e.executeCleanCache,
34	})
35	cacheCmd.AddCommand(&cobra.Command{
36		Use:   "status",
37		Short: "Show cache status",
38		Run:   e.executeCacheStatus,
39	})
40
41	// TODO: add trim command?
42}
43
44func (e *Executor) executeCleanCache(_ *cobra.Command, args []string) {
45	if len(args) != 0 {
46		e.log.Fatalf("Usage: golangci-lint cache clean")
47	}
48
49	cacheDir := cache.DefaultDir()
50	if err := os.RemoveAll(cacheDir); err != nil {
51		e.log.Fatalf("Failed to remove dir %s: %s", cacheDir, err)
52	}
53
54	os.Exit(0)
55}
56
57func (e *Executor) executeCacheStatus(_ *cobra.Command, args []string) {
58	if len(args) != 0 {
59		e.log.Fatalf("Usage: golangci-lint cache status")
60	}
61
62	cacheDir := cache.DefaultDir()
63	fmt.Fprintf(logutils.StdOut, "Dir: %s\n", cacheDir)
64	cacheSizeBytes, err := dirSizeBytes(cacheDir)
65	if err == nil {
66		fmt.Fprintf(logutils.StdOut, "Size: %s\n", fsutils.PrettifyBytesCount(cacheSizeBytes))
67	}
68
69	os.Exit(0)
70}
71
72func dirSizeBytes(path string) (int64, error) {
73	var size int64
74	err := filepath.Walk(path, func(_ string, info os.FileInfo, err error) error {
75		if err != nil {
76			return err
77		}
78		if !info.IsDir() {
79			size += info.Size()
80		}
81		return err
82	})
83	return size, err
84}
85