fix: Signature only flag bug on tx sign command 7632 (#8106)

* fix: Signature only flag bug on tx sign command 7632

* Update client/context.go

Co-authored-by: Cory <cjlevinson@gmail.com>

* Update client/context.go

Co-authored-by: Cory <cjlevinson@gmail.com>

* use named return value and closure (#8111)

This is to correctly handle deferred Close()
calls on writable files.

* set the right 'append' logic for signing transactions

* cleanup

* update tx.Sign interface by adding overwrite option

* Update Changelog

* sign command cleanup

* implementation and changelog update

* fix SignTx and tx.Sign calls

* fix: sign didn't write to a file

* update flags description

* Add tx.Sign tests

* fix grpc/server_test.go

* Update client/tx/tx.go

Co-authored-by: Cory <cjlevinson@gmail.com>

* changelog update

* Add test to verify matching signatures

* cli_test: add integration tests for sign CMD

* add output-file flag test

* add flagAmino test

* Update x/auth/client/cli/tx_sign.go

Co-authored-by: Alessio Treglia <alessio@tendermint.com>

* Update x/auth/client/cli/tx_sign.go

* update amino serialization test

* TestSign: adding unit test for signing with different modes

* Add test with Multi Signers into Robert's TxSign PR (#8142)

* Add test with Multi Signers

* remove true false

* Use SIGN_MODE_DIRECT

* Fix litn

* Use correct pubkeys

* Correct accNum and seq

* Use amino

* cleanups

* client.Sign: raise error when signing tx with multiple signers in Direct

+ added more unit tests

* add more tests

* Update client/tx/tx_test.go

Co-authored-by: Cory <cjlevinson@gmail.com>

* fix TestGetBroadcastCommand_WithoutOfflineFlag

* Any.UnsafeSetCachedValue

* fix note packed messages in tx builder

* reorder unit tests

* Changelog update

* cleaning / linting

* cli_tes: copy validator object instead of modifying it's shared codec

* x/auth cli_test: remove custom codec creation in tests

* Update CHANGELOG.md

* updates to CHANGELOG.md

* remove unused method

* add new instance of transaction builder for TestSign

Co-authored-by: Cory <cjlevinson@gmail.com>
Co-authored-by: SaReN <sahithnarahari@gmail.com>
Co-authored-by: Alessio Treglia <alessio@tendermint.com>
Co-authored-by: Amaury <amaury.martiny@protonmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

types/errors/errors.go

@@ -131,6 +131,10 @@ var (
 	// the same resource and one of them fails.
 	ErrConflict = Register(RootCodespace, 36, "conflict")
 
+	// ErrNotSupported is returned when we call a branch of a code which is currently not
+	// supported.
+	ErrNotSupported = Register(RootCodespace, 37, "feature not supported")
+
 	// ErrPanic is only set when we recover from a panic, so we know to
 	// redact potentially sensitive system info
 	ErrPanic = Register(UndefinedCodespace, 111222, "panic")

types/tx/types.go

@@ -28,6 +28,10 @@ func (t *Tx) GetMsgs() []sdk.Msg {
 	for i, any := range anys {
 		var msg sdk.Msg
 		if isServiceMsg(any.TypeUrl) {
+			req := any.GetCachedValue()
+			if req == nil {
+				panic("Any cached value is nil. Transaction messages must be correctly packed Any values.")
+			}
 			msg = sdk.ServiceMsg{
 				MethodName: any.TypeUrl,
 				Request:    any.GetCachedValue().(sdk.MsgRequest),