`-- peer list` command

README.md

@@ -17,6 +17,7 @@ You can override this value by specifying a `PIGEON_PATH` ENV var.
  - [ ] Figure out a system for where to place the default data storage directory
  - [ ] Get a good CI system going? Run tests at PR time, provide prebuilt binaries, prevent coverage slips, etc..
  - [ ] Add a `transact()` helper to ensure all transactions are closed out.
+ - [ ] Switch to [SQLX](https://github.com/jmoiron/sqlx) for extra sanity.
  - [ ] Finish all the things below:
 
  |Done?|Noun        |Verb       | Flag / arg 1  | Flag 2    |

project/cli.go

@@ -75,6 +75,16 @@ var peerBlockCmd = &cobra.Command{
 	},
 }
 
+var peerListCmd = &cobra.Command{
+	Use:   "list",
+	Short: "show a list of peers by their status (blocked, following, etc..)",
+	Run: func(cmd *cobra.Command, args []string) {
+		for _, peer := range listPeers() {
+			fmt.Printf("%s %s\n", peer.mhash, peer.status)
+		}
+	},
+}
+
 var peerFollowCmd = &cobra.Command{
 	Use:   "follow",
 	Short: "Follow a peer and replicate their feed when possible.",
@@ -95,6 +105,8 @@ func BootstrapCLI() {
 
 	rootCmd.AddCommand(peerRootCmd)
 	peerRootCmd.AddCommand(peerBlockCmd)
+	peerRootCmd.AddCommand(peerFollowCmd)
+	peerRootCmd.AddCommand(peerListCmd)
 
 	if err := rootCmd.Execute(); err != nil {
 		fmt.Println(err)

project/peers.go

@@ -15,8 +15,14 @@ const (
 	unknown              = "unknown"
 )
 
+type peer struct {
+	mhash  string
+	status PeerStatus
+}
+
 const createPeer = "INSERT INTO peers(mhash, status) VALUES(?1, ?2)"
 const findPeerByStatus = "SELECT status FROM peers WHERE mhash=$1;"
+const getAllPeers = "SELECT mhash, status FROM peers ORDER BY status DESC, mhash ASC;"
 
 func getPeerStatus(mHash string) PeerStatus {
 	var status PeerStatus
@@ -52,7 +58,31 @@ func addPeer(mHash string, status PeerStatus) {
 	}
 }
 
-// func showPeers()        {}
+func listPeers() []peer {
+	var (
+		status PeerStatus
+		mhash  string
+	)
+	rows, err := getDB().Query(getAllPeers)
+	if err != nil {
+		panicf("showPeers query failure: %s", err)
+	}
+	defer rows.Close()
+	output := []peer{}
+	for rows.Next() {
+		err := rows.Scan(&mhash, &status)
+		if err != nil {
+			panicf("Show peers row scan failure: %s", err)
+		}
+		output = append(output, peer{mhash: mhash, status: status})
+	}
+	err = rows.Err()
+	if err != nil {
+		panicf("showPeers row error: %s", err)
+	}
+	return output
+}
+
 // func showBlockedPeers() {}
 // func blockPeer()        {}
 // func unblockPeer()      {}