viye/internal/plumbing/files/files.go (view raw)
| 1 | package files |
| 2 | |
| 3 | import ( |
| 4 | "bufio" |
| 5 | "fmt" |
| 6 | "os" |
| 7 | "path/filepath" |
| 8 | "strings" |
| 9 | |
| 10 | "github.com/olexsmir/viye/internal/viye" |
| 11 | ) |
| 12 | |
| 13 | type Tool struct{} |
| 14 | |
| 15 | func (Tool) Name() string { return "files(~/..., /...)" } |
| 16 | |
| 17 | func (Tool) Match(ctx *viye.Context) bool { |
| 18 | p := ctx.Path[0] |
| 19 | if p == "~" || strings.HasPrefix(p, "/") { |
| 20 | return true |
| 21 | } |
| 22 | _, err := os.Stat(filepath.Join(ctx.Dir, p)) |
| 23 | return err == nil |
| 24 | } |
| 25 | |
| 26 | func (Tool) Execute(ctx *viye.Context) (string, error) { |
| 27 | path := resolve(ctx.Path[0], ctx.Dir) |
| 28 | |
| 29 | info, err := os.Stat(path) |
| 30 | if err != nil { |
| 31 | return "", err |
| 32 | } |
| 33 | |
| 34 | switch { |
| 35 | case info.IsDir(): |
| 36 | if len(ctx.Path) == 1 { |
| 37 | ls, err := listDir(path) |
| 38 | if err != nil { |
| 39 | return "", err |
| 40 | } |
| 41 | return viye.FormatBulletlist(ls), nil |
| 42 | } |
| 43 | ctx.Dir = path |
| 44 | ctx.Path = ctx.Path[1:] |
| 45 | return ctx.Next() |
| 46 | |
| 47 | // case info.Mode()&0o111 != 0: |
| 48 | // return runExec(path) |
| 49 | |
| 50 | default: |
| 51 | s, err := head(path, 10) |
| 52 | if err != nil { |
| 53 | return "", err |
| 54 | } |
| 55 | return s, nil |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | func resolve(p, dir string) string { |
| 60 | if p == "~" { |
| 61 | home, _ := os.UserHomeDir() |
| 62 | return home |
| 63 | } |
| 64 | if strings.HasPrefix(p, "~/") { |
| 65 | home, _ := os.UserHomeDir() |
| 66 | return filepath.Join(home, p[2:]) |
| 67 | } |
| 68 | if filepath.IsAbs(p) { |
| 69 | return filepath.Clean(p) |
| 70 | } |
| 71 | return filepath.Join(dir, p) |
| 72 | } |
| 73 | |
| 74 | func listDir(dir string) (string, error) { |
| 75 | entries, err := os.ReadDir(dir) |
| 76 | if err != nil { |
| 77 | return "", err |
| 78 | } |
| 79 | var b strings.Builder |
| 80 | for _, e := range entries { |
| 81 | name := e.Name() |
| 82 | if e.IsDir() { |
| 83 | name += "/" |
| 84 | } |
| 85 | b.WriteString(name) |
| 86 | b.WriteByte('\n') |
| 87 | } |
| 88 | return b.String(), nil |
| 89 | } |
| 90 | |
| 91 | func head(path string, n int) (string, error) { |
| 92 | f, err := os.Open(path) |
| 93 | if err != nil { |
| 94 | return "", err |
| 95 | } |
| 96 | defer f.Close() |
| 97 | |
| 98 | sc := bufio.NewScanner(f) |
| 99 | var b strings.Builder |
| 100 | for i := 0; i < n && sc.Scan(); i++ { |
| 101 | fmt.Fprintf(&b, "| %s\n", sc.Text()) |
| 102 | } |
| 103 | if sc.Scan() { |
| 104 | b.WriteString("| ...\n") |
| 105 | } |
| 106 | return b.String(), sc.Err() |
| 107 | } |