added ec2 subcommand. Closes #4

README.md

@@ -201,7 +201,7 @@ available EC2 instances in a table like structure excluding the ones that are be
 List all the available EC2 instances:
 
 ```bash
-$ aws-go list
+$ aws-go ec2 list
 ```
 
 ### Starting EC2 instances
@@ -214,13 +214,13 @@ the `start` command along with the `instance-id` of the instance you want to sta
 Starting an EC2 instance:
 
 ```bash
-$ aws-go start i-0a12b345c678de
+$ aws-go ec2 start i-0a12b345c678de
 ```
 
 Performing a `--dry-run` operation:
 
 ```bash
-$ aws-go start --dry-run i-0a12b345c678de
+$ aws-go ec2 start --dry-run i-0a12b345c678de
 ```
 
 ### Stopping EC2 instances
@@ -233,13 +233,13 @@ as the argument.
 Stopping an EC2 instance:
 
 ```bash
-$ aws-go stop i-0a12b345c678de
+$ aws-go ec2 stop i-0a12b345c678de
 ```
 
 Performing a `--dry-run` operation:
 
 ```bash
-$ aws-go stop --dry-run i-0a12b345c678de
+$ aws-go ec2 stop --dry-run i-0a12b345c678de
 ```
 
 ### Listing Lambda functions

cmd/aws-go/ec2/ec2.go

@@ -0,0 +1,26 @@
+// Package ec2 implements AWS EC2 related operations.
+package ec2
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/bharath-srinivas/aws-go/cmd/aws-go/command"
+)
+
+// ec2 command.
+var ec2Cmd = &cobra.Command{
+	Use:   "ec2",
+	Short: "Perform AWS EC2 specific operations",
+	Long:  `List, start or stop AWS EC2 instances`,
+	Example: `  aws-go ec2 list
+  aws-go ec2 start i-0a12b345c678de
+  aws-go ec2 stop i-0a12b345c678de`,
+	Args: cobra.NoArgs,
+	Run: func(cmd *cobra.Command, args []string) {
+		cmd.Usage()
+	},
+}
+
+func init() {
+	command.AddCommand(ec2Cmd)
+}

cmd/aws-go/ec2/list.go

@@ -23,7 +23,7 @@ var listCmd = &cobra.Command{
 }
 
 func init() {
-	command.AddCommand(listCmd)
+	ec2Cmd.AddCommand(listCmd)
 }
 
 // run command.

cmd/aws-go/ec2/start.go

@@ -25,7 +25,7 @@ var startCmd = &cobra.Command{
 }
 
 func init() {
-	command.AddCommand(startCmd)
+	ec2Cmd.AddCommand(startCmd)
 	startCmd.Flags().BoolVarP(&dryRun, "dry-run", "", false, "perform the operation with dry run enabled")
 }
 

cmd/aws-go/ec2/stop.go

@@ -22,7 +22,7 @@ var stopCmd = &cobra.Command{
 }
 
 func init() {
-	command.AddCommand(stopCmd)
+	ec2Cmd.AddCommand(stopCmd)
 	stopCmd.Flags().BoolVarP(&dryRun, "dry-run", "", false, "perform the operation with dry run enabled")
 }
 

cmd/aws-go/rds/rds.go

@@ -11,7 +11,7 @@ import (
 var rdsCmd = &cobra.Command{
 	Use:     "rds",
 	Short:   "Perform AWS RDS specific operations",
-	Long:    `List, start or stop AWS RDS instances`,
+	Long:    `List AWS RDS instances`,
 	Args:    cobra.NoArgs,
 	Example: `  aws-go rds list`,
 	Run: func(cmd *cobra.Command, args []string) {