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CommP CID generation (official & correct!) #1
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -4,3 +4,4 @@ commp | |
| lambda/lambda | ||
| lambda/deployment.zip | ||
| commp_lambda | ||
| commp-cid | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "encoding/hex" | ||
| "fmt" | ||
| "github.com/ipfs/go-cid" | ||
| "github.com/multiformats/go-multihash" | ||
| "os" | ||
| ) | ||
|
|
||
| func main() { | ||
| if len(os.Args) != 2 { | ||
| fmt.Println("Usage: commp-cid <file>") | ||
| os.Exit(1) | ||
| } | ||
|
|
||
| commp, err := hex.DecodeString(os.Args[1]) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| mh, err := multihash.Encode(commp, multihash.SHA2_256_TRUNC254_PADDED) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| ccid := cid.NewCidV1(cid.FilCommitmentUnsealed, mh) | ||
|
|
||
| println(ccid.String()) | ||
| } | ||
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@rvagg this can now be replaced entirely with (untested)