vbatts/go-mtree
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gomtree: -list-used can output JSON

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Piggybacking on `-result-format`:

```bash
$ tar c .git/ | gomtree -c -T - > git.mtree
$ gomtree -result-format=json -list-used -f ./git.mtree
{
  "./git.mtree": [
    "type",
    "mode",
    "uid",
    "gid",
    "tar_time",
    "size"
  ]
}
$ tar c .git/ | gomtree -c -T - -K sha512digest > git.mtree
$ gomtree -result-format=json -list-used -f ./git.mtree
{
  "./git.mtree": [
    "type",
    "mode",
    "uid",
    "gid",
    "tar_time",
    "size",
    "sha512digest"
  ]
}
```

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
This commit is contained in:
Vincent Batts 2016-08-11 14:50:20 -04:00
parent 97a2505b8b
commit 6d8cd9fe4c
1 changed files with 19 additions and 6 deletions
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15
cmd/gomtree/main.go
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@ -164,14 +164,27 @@ func main() {
isErr = true
return
}
usedKeywords := mtree.CollectUsedKeywords(dh)
if *flResultFormat == "json" {
// if they're asking for json, give it to them
data := map[string][]string{*flFile: usedKeywords}
buf, err := json.MarshalIndent(data, "", " ")
if err != nil {
defer os.Exit(1)
isErr = true
return
}
fmt.Println(string(buf))
} else {
fmt.Printf("Keywords used in [%s]:\n", *flFile)
for _, kw := range mtree.CollectUsedKeywords(dh) {
for _, kw := range usedKeywords {
fmt.Printf(" %s", kw)
if _, ok := mtree.KeywordFuncs[kw]; !ok {
fmt.Print(" (unsupported)")
}
fmt.Printf("\n")
}
}
return
}