Multiple assigns to TagAction for Msg

[rigelrozanski]

Just noticed that many of the modules use the action tag, but also the action tag is appended for each message within baseapp (here https://github.com/cosmos/cosmos-sdk/blob/develop/baseapp/baseapp.go#L690)

We should consolidate so either modules don't use the action tag for each message, or baseapp doesn't append an action tag

Additionally, the spec tag sections must be updated if we go with the latter choice.

CC @jackzampolin @cwgoes @alexanderbez

Relevant search:

types/tags.go:73:	TagAction       = "action"
baseapp/baseapp.go:690:		tags = append(tags, sdk.MakeTag(sdk.TagAction, msg.Type()))
client/config.go:54:	getAction := viper.GetBool(flagGet)
client/config.go:55:	if getAction && len(args) != 1 {
client/config.go:77:	if getAction {
x/bank/tags.go:5:	TagActionUndelegateCoins = []byte("undelegateCoins")
x/bank/tags.go:6:	TagActionDelegateCoins   = []byte("delegateCoins")
x/bank/keeper.go:384:		sdk.TagAction, TagActionDelegateCoins,
x/bank/keeper.go:409:		sdk.TagAction, TagActionUndelegateCoins,
x/staking/alias.go:171:	ActionCompleteUnbonding    = tags.ActionCompleteUnbonding
x/staking/alias.go:172:	ActionCompleteRedelegation = tags.ActionCompleteRedelegation
x/staking/alias.go:174:	TagAction       = tags.Action
x/staking/handler.go:63:			tags.Action, ActionCompleteUnbonding,
x/staking/handler.go:79:			tags.Action, tags.ActionCompleteRedelegation,
x/staking/tags/tags.go:9:	ActionCompleteUnbonding    = "complete-unbonding"
x/staking/tags/tags.go:10:	ActionCompleteRedelegation = "complete-redelegation"
x/staking/tags/tags.go:12:	Action       = sdk.TagAction
x/staking/client/rest/query.go:154:			actions = append(actions, tags.ActionCompleteUnbonding)
x/staking/client/rest/query.go:157:			actions = append(actions, tags.ActionCompleteRedelegation)
x/staking/client/rest/query.go:161:			actions = append(actions, tags.ActionCompleteUnbonding)
x/staking/client/rest/query.go:163:			actions = append(actions, tags.ActionCompleteRedelegation)
x/staking/client/rest/utils.go:35:	query := fmt.Sprintf("%s='%s' AND %s='%s'", tags.Action, tag, tags.Delegator, delegatorAddr)
x/slashing/handler.go:64:		tags.Action, tags.ActionValidatorUnjailed,
x/slashing/tags/tags.go:9:	ActionValidatorUnjailed = "validator-unjailed"
x/slashing/tags/tags.go:11:	Action    = sdk.TagAction
x/gov/tags/tags.go:9:	ActionProposalDropped  = "proposal-dropped"
x/gov/tags/tags.go:10:	ActionProposalPassed   = "proposal-passed"
x/gov/tags/tags.go:11:	ActionProposalRejected = "proposal-rejected"
x/gov/tags/tags.go:13:	Action            = sdk.TagAction
x/gov/endblocker.go:30:		resTags = resTags.AppendTag(tags.ProposalResult, tags.ActionProposalDropped)
x/gov/endblocker.go:59:			tagValue = tags.ActionProposalPassed
x/gov/endblocker.go:63:			tagValue = tags.ActionProposalRejected
x/gov/client/utils/query.go:45:		fmt.Sprintf("%s='%s'", tags.Action, gov.MsgDeposit{}.Type()),
x/gov/client/utils/query.go:90:		fmt.Sprintf("%s='%s'", tags.Action, gov.MsgVote{}.Type()),
x/gov/client/utils/query.go:130:		fmt.Sprintf("%s='%s'", tags.Action, gov.MsgVote{}.Type()),
x/gov/client/utils/query.go:173:		fmt.Sprintf("%s='%s'", tags.Action, gov.MsgDeposit{}.Type()),
x/gov/client/utils/query.go:216:		fmt.Sprintf("%s='%s'", tags.Action, gov.MsgSubmitProposal{}.Type()),

[cwgoes]

Yes, we should. A sanity check for duplicate tags (at least logging a warning) might be prudent.

[alexanderbez]

Yeah totally agree here. My gut tells me the baseapp should continue to perform its role in adding the action tag -- this provides less things to worry about in each handler and requires less docs update.

[fedekunze]

how are this tags useful if they don't involve any transaction (i.e they are not queryable)? Should we get rid of them ?

x/staking/tags/tags.go:9:	ActionCompleteUnbonding    = "complete-unbonding"
x/staking/tags/tags.go:10:	ActionCompleteRedelegation = "complete-redelegation"
x/gov/tags/tags.go:9:	ActionProposalDropped  = "proposal-dropped"
x/gov/tags/tags.go:10:	ActionProposalPassed   = "proposal-passed"
x/gov/tags/tags.go:11:	ActionProposalRejected = "proposal-rejected"

[fedekunze]

also what's a delegateCoins and undelegateCoins action ?

[alexanderbez]

@fedekunze we should do a sweep through and see what tags are not used anymore and why they're not used. Remove the ones that you deem useless.

delegateCoins and undelegateCoins get called from the bank keeper when bonding or unbonding tokens.