Simple tool to manipulate Hyperledger Fabric .cds files
Note: this project is unsupported and was only created for something to experiment with while learning Rust!
Prebuilt binaries for Linux, OSX, and Windows can be downloaded from the latest release on the releases page.
For example, to install on linux:
curl -L "https://github.com/jt-nti/cds-cli/releases/download/0.5.0/cds-0.5.0-linux" -o cds && chmod u+x cds
Type cds --help to print help information.
To list the files inside a .cds file:
cds -x mysterious.cds | tar -tvf -
You will need a .tgz file containing the chaincode you want to package. The chaincode must be in a src/ directory. For example, assuming you have cloned the fabric-samples repository:
tar -czf "fabcarcc.tgz" --transform s/go/src/ -C ./fabric-samples/chaincode/fabcar/ go
This should create a fabcarcc.tgz file with the following contents:
src/
src/fabcar.go
src/go.mod
src/go.sum
Then to create a .cds file:
./cds --create --lang golang --name fabcarcc --version 1 --module github.com/hyperledger/fabric-samples/chaincode/fabcar/go --output fabcarcc.cds fabcarcc.tgz
Note: the --module option is only required for golang chaincode and must match the module defined in the go.mod file
The configtxlator command can be used to decode .cds files. For example, to list the files inside a .cds file:
configtxlator proto_decode --type protos.ChaincodeDeploymentSpec --input mysterious.cds --output mysterious.json
jq -j .code_package mysterious.json | base64 --decode | tar -tvf -
There is another cdstool which you can install using go get github.com/btl5037/cdstool assuming you have Go installed and $GOPATH/bin on your path
You can also unpack files from a .cds file using 7-Zip
Use the peer chaincode package command. For example:
peer chaincode package fabcarcc.cds --lang golang --name fabcarcc --version 1 --path ./fabric-samples/chaincode/fabcar/go