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Merge pull request #1702 from shipwright-io/add/file-listing
Add file listing for bundle unpack and Git clone
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| // Copyright The Shipwright Contributors | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| package util | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io" | ||
| "io/fs" | ||
| "log" | ||
| "os" | ||
| "path/filepath" | ||
| "strconv" | ||
| "strings" | ||
| "syscall" | ||
|
|
||
| "github.com/jedib0t/go-pretty/v6/table" | ||
| "github.com/jedib0t/go-pretty/v6/text" | ||
| ) | ||
|
|
||
| // ListFiles prints all files in a given directory to the provided writer | ||
| func ListFiles(w io.Writer, dir string) error { | ||
| t := table.NewWriter() | ||
| defer t.Render() | ||
|
|
||
| t.SetOutputMirror(w) | ||
| t.SetColumnConfigs([]table.ColumnConfig{{Number: 5, Align: text.AlignRight}}) | ||
| t.Style().Options.DrawBorder = false | ||
| t.Style().Options.SeparateColumns = false | ||
|
|
||
| return filepath.Walk(dir, func(path string, info fs.FileInfo, err error) error { | ||
| if err != nil { | ||
| log.Printf("ignoring error for path %s: %v\n", path, err) | ||
| return nil | ||
| } | ||
|
|
||
| // Omit the target path itself | ||
| if path == dir { | ||
| return nil | ||
| } | ||
|
|
||
| // use relative paths to keep output compact | ||
| if l, err := filepath.Rel(dir, path); err == nil { | ||
| path = l | ||
| } | ||
|
|
||
| // if possible, try to obtain nlink count and user/group details | ||
| var nlink, user, group string = "?", "?", "?" | ||
| if stat, ok := info.Sys().(*syscall.Stat_t); ok { | ||
| user = strconv.FormatUint(uint64(stat.Uid), 10) | ||
| group = strconv.FormatUint(uint64(stat.Gid), 10) | ||
| nlink = strconv.FormatUint(uint64(stat.Nlink), 10) | ||
| } | ||
|
|
||
| t.AppendRow(table.Row{ | ||
| filemode(info), | ||
| nlink, | ||
| user, | ||
| group, | ||
| humanReadableSize(info.Size()), | ||
| path, | ||
| }) | ||
|
|
||
| return nil | ||
| }) | ||
| } | ||
|
|
||
| // filemode is a minimal effort function to translate os.FileMode to the | ||
| // commonly known human representation, i.e. rw-r--r--. However, it does | ||
| // not implement all features such as sticky bits. | ||
| func filemode(info fs.FileInfo) string { | ||
| var translate = func(i os.FileMode) string { | ||
| var result = []rune{'-', '-', '-'} | ||
| if i&0x1 != 0 { | ||
| result[2] = 'x' | ||
| } | ||
|
|
||
| if i&0x2 != 0 { | ||
| result[1] = 'w' | ||
| } | ||
|
|
||
| if i&0x4 != 0 { | ||
| result[0] = 'r' | ||
| } | ||
|
|
||
| return string(result) | ||
| } | ||
|
|
||
| var dirBit = func(i os.FileMode) string { | ||
| if i&fs.ModeDir != 0 { | ||
| return "d" | ||
| } | ||
|
|
||
| return "-" | ||
| } | ||
|
|
||
| var mode = info.Mode() | ||
| return dirBit(mode) + translate((mode>>6)&0x7) + translate((mode>>3)&0x7) + translate(mode&0x7) | ||
| } | ||
|
|
||
| // humanReadableSize is a minimal effort function to return a human readable | ||
| // size of the given number of bytes in a compact form | ||
| func humanReadableSize(bytes int64) string { | ||
| value := float64(bytes) | ||
|
|
||
| var mods = []string{"B", "K", "M", "G", "T"} | ||
| var i int | ||
| for value > 1023.9 { | ||
| value /= 1024.0 | ||
| i++ | ||
| } | ||
|
|
||
| return strings.TrimRight(fmt.Sprintf("%.1f", value), ".0") + mods[i] | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| // Copyright The Shipwright Contributors | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| // package util contains helper and utility functions | ||
| package util |
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