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Add integrity information to must-gather
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| package collect | ||
|
|
||
| import ( | ||
| "crypto/sha512" | ||
| "encoding/hex" | ||
| "encoding/json" | ||
| "fmt" | ||
| "hash" | ||
| ) | ||
|
|
||
| type hasher struct { | ||
| hash.Hash | ||
| } | ||
|
|
||
| func (h hasher) MarshalJSON() ([]byte, error) { | ||
| return json.Marshal(hex.EncodeToString(h.Sum(nil))) | ||
| } | ||
|
|
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| type IntegrityCounter struct { | ||
| FileCount uint `json:"fileCount"` | ||
| Hasher hasher `json:"checksum"` | ||
| } | ||
|
|
||
| func (ic *IntegrityCounter) writeFile(data []byte) error { | ||
| if ic.FileCount == 0 { | ||
| ic.Hasher = hasher{sha512.New()} | ||
| } | ||
| ic.FileCount++ | ||
|
|
||
| _, err := ic.Hasher.Write(data) | ||
| if err != nil { | ||
| return fmt.Errorf("can't write data to hasher: %w", err) | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
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| type Counters struct { | ||
| Dirs map[string]IntegrityCounter `json:"directories"` | ||
| Hasher hasher `json:"checksum"` | ||
| } | ||
|
|
||
| func NewCounters() *Counters { | ||
| return &Counters{ | ||
| Dirs: map[string]IntegrityCounter{}, | ||
| Hasher: hasher{sha512.New()}, | ||
| } | ||
| } | ||
|
|
||
| func (c *Counters) writeFile(dirPath string, data []byte) error { | ||
| _, err := c.Hasher.Write(data) | ||
| if err != nil { | ||
| return fmt.Errorf("can't hash data: %w", err) | ||
| } | ||
|
|
||
| ic, found := c.Dirs[dirPath] | ||
| if !found { | ||
| ic = IntegrityCounter{} | ||
| } | ||
|
|
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| err = ic.writeFile(data) | ||
| if err != nil { | ||
| return fmt.Errorf("can't write file to identity counter: %w", err) | ||
| } | ||
|
|
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| c.Dirs[dirPath] = ic | ||
|
|
||
| return nil | ||
| } |