From 0ed6de0cbd7367ce17a3e42711fcab54025b04db Mon Sep 17 00:00:00 2001
From: Alessio Treglia <quadrispro@ubuntu.com>
Date: Tue, 29 Jan 2019 14:25:43 -0800
Subject: [PATCH] Merge PR #3426: Various changes to version cmd, revert those
 which previously broke ABI

* version prints out short info by default

Handle -o json, add --long flag to print full version info.

* Add distclean target to Makefile

* Update PENDING.md

* Add missing targets in .PHONY
---
 Makefile           |  5 ++++-
 PENDING.md         |  1 +
 baseapp/baseapp.go |  2 +-
 client/rpc/root.go |  2 +-
 version/command.go | 45 +++++++++++++++++++++++++++++++--------------
 version/version.go | 25 +++++++++++++++++++++++++
 6 files changed, 63 insertions(+), 17 deletions(-)

diff --git a/Makefile b/Makefile
index 96be180fd..037366c41 100644
--- a/Makefile
+++ b/Makefile
@@ -124,6 +124,9 @@ draw_deps: tools
 clean:
 	rm -f devtools-stamp vendor-deps snapcraft.yaml
 
+distclean: clean
+	rm -rf vendor/
+
 ########################################
 ### Documentation
 
@@ -250,7 +253,7 @@ build-snap-edge: snapcraft.yaml
 # To avoid unintended conflicts with file names, always add to .PHONY
 # unless there is a reason not to.
 # https://www.gnu.org/software/make/manual/html_node/Phony-Targets.html
-.PHONY: build install install_debug dist \
+.PHONY: build install install_debug dist clean distclean \
 check_tools check_dev_tools get_vendor_deps draw_deps test test_cli test_unit \
 test_cover test_lint benchmark devdoc_init devdoc devdoc_save devdoc_update \
 build-linux build-docker-gaiadnode localnet-start localnet-stop \
diff --git a/PENDING.md b/PENDING.md
index 7fc54004b..d2a365fde 100644
--- a/PENDING.md
+++ b/PENDING.md
@@ -8,6 +8,7 @@ BREAKING CHANGES
 
 * Gaia CLI  (`gaiacli`)
   - [#3399](https://github.com/cosmos/cosmos-sdk/pull/3399) Add `gaiad validate-genesis` command to facilitate checking of genesis files
+  - [\#1894](https://github.com/cosmos/cosmos-sdk/issues/1894) `version` prints out short info by default. Add `--long` flag. Proper handling of `--format` flag introduced.
 
 * Gaia
 
diff --git a/baseapp/baseapp.go b/baseapp/baseapp.go
index cfeb97214..950125180 100644
--- a/baseapp/baseapp.go
+++ b/baseapp/baseapp.go
@@ -396,7 +396,7 @@ func handleQueryApp(app *BaseApp, path []string, req abci.RequestQuery) (res abc
 			return abci.ResponseQuery{
 				Code:      uint32(sdk.CodeOK),
 				Codespace: string(sdk.CodespaceRoot),
-				Value:     []byte(version.GetVersion()),
+				Value:     []byte(version.Version),
 			}
 		default:
 			result = sdk.ErrUnknownRequest(fmt.Sprintf("Unknown query: %s", path)).Result()
diff --git a/client/rpc/root.go b/client/rpc/root.go
index cb25b47f3..83ee51786 100644
--- a/client/rpc/root.go
+++ b/client/rpc/root.go
@@ -26,7 +26,7 @@ func RegisterRoutes(cliCtx context.CLIContext, r *mux.Router) {
 // cli version REST handler endpoint
 func CLIVersionRequestHandler(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json")
-	w.Write([]byte(fmt.Sprintf("{\"version\": \"%s\"}", version.GetVersion())))
+	w.Write([]byte(fmt.Sprintf("{\"version\": \"%s\"}", version.Version)))
 }
 
 // connected node version REST handler endpoint
diff --git a/version/command.go b/version/command.go
index 49cf1e021..c3ff71df1 100644
--- a/version/command.go
+++ b/version/command.go
@@ -1,31 +1,48 @@
 package version
 
 import (
+	"encoding/json"
 	"fmt"
-	"runtime"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+
+	"github.com/tendermint/tendermint/libs/cli"
+)
+
+const (
+	flagLong = "long"
 )
 
 var (
+
 	// VersionCmd prints out the current sdk version
 	VersionCmd = &cobra.Command{
 		Use:   "version",
 		Short: "Print the app version",
-		Run:   printVersion,
+		RunE: func(_ *cobra.Command, _ []string) error {
+			verInfo := newVersionInfo()
+
+			if !viper.GetBool(flagLong) {
+				fmt.Println(verInfo.CosmosSDK)
+				return nil
+			}
+
+			if viper.GetString(cli.OutputFlag) != "json" {
+				fmt.Print(verInfo)
+				return nil
+			}
+
+			bz, err := json.Marshal(verInfo)
+			if err != nil {
+				return err
+			}
+			fmt.Println(string(bz))
+			return nil
+		},
 	}
 )
 
-// return version of CLI/node and commit hash
-func GetVersion() string {
-	return Version
-}
-
-// CMD
-func printVersion(cmd *cobra.Command, args []string) {
-	fmt.Println("cosmos-sdk:", GetVersion())
-	fmt.Println("git commit:", Commit)
-	fmt.Println("vendor hash:", VendorDirHash)
-	fmt.Printf("go version %s %s/%s\n",
-		runtime.Version(), runtime.GOOS, runtime.GOARCH)
+func init() {
+	VersionCmd.Flags().Bool(flagLong, false, "Print long version information")
 }
diff --git a/version/version.go b/version/version.go
index 031976ecd..6affcfbd4 100644
--- a/version/version.go
+++ b/version/version.go
@@ -1,9 +1,34 @@
 //nolint
 package version
 
+import (
+	"fmt"
+	"runtime"
+)
+
 // Variables set by build flags
 var (
 	Commit        = ""
 	Version       = ""
 	VendorDirHash = ""
 )
+
+type versionInfo struct {
+	CosmosSDK     string `json:"cosmos_sdk"`
+	GitCommit     string `json:"commit"`
+	VendorDirHash string `json:"vendor_hash"`
+	GoVersion     string `json:"go"`
+}
+
+func (v versionInfo) String() string {
+	return fmt.Sprintf(`cosmos-sdk: %s
+git commit: %s
+vendor hash: %s
+%s`, v.CosmosSDK, v.GitCommit, v.VendorDirHash, v.GoVersion)
+}
+
+func newVersionInfo() versionInfo {
+	return versionInfo{
+		Version, Commit, VendorDirHash, fmt.Sprintf("go version %s %s/%s\n",
+			runtime.Version(), runtime.GOOS, runtime.GOARCH)}
+}