Adding format flag for json, yaml, or env (#24)

* adding yaml support

* needing log

* adding a note in the README about the flag.

* converting yaml flag to format flag allowing for json, yaml, and env

* updating readme

* removing accidental commas in the readme

README.md

@@ -24,6 +24,32 @@ $ cat ./example.json
 }
 ```
 
+There's also a `--format` flag to pass in which format you want the parameters to export as.
+
+```
+$ gorson get --format yaml /a/parameter/store/path/ > ./example.yml
+```
+
+```
+$ cat ./example.yml
+
+alpha: "the_alpha_value"
+beta: "the_beta_value"
+delta: "the_delta_value"
+```
+
+```
+$ gorson get --format env /a/parameter/store/path/ > ./.env
+```
+
+```
+$ cat ./.env
+
+alpha="the_alpha_value"
+beta="the_beta_value"
+delta="the_delta_value"
+```
+
 ## Load parameters as environment variables from a json file
 
 ```
@@ -84,4 +110,4 @@ AWS_PROFILE=example-profile AWS_REGION=us-east-1 gorson get /a/parameter/store/p
 
 # Development
 
-See [docs/development.md](docs/development.md)
+See [docs/development.md](docs/development.md)

cmd/get.go

@@ -2,18 +2,42 @@ package cmd
 
 import (
 	"fmt"
+	"log"
+	"regexp"
 
 	"github.com/pbs/gorson/internal/gorson/io"
 	"github.com/pbs/gorson/internal/gorson/json"
 	"github.com/pbs/gorson/internal/gorson/util"
 	"github.com/spf13/cobra"
+	"gopkg.in/yaml.v2"
 )
 
+var format string
+
 func get(path string) {
 	p := util.NewParameterStorePath(path)
 	pms := io.ReadFromParameterStore(*p)
-	marshalled := json.Marshal(pms)
-	fmt.Println(marshalled)
+	if format == "yaml" || format == "yml" {
+		serialized, err := yaml.Marshal(pms)
+		if err != nil {
+			log.Fatal(err)
+		}
+		fmt.Println(string(serialized))
+
+	} else if format == "env" {
+		serialized, err := yaml.Marshal(pms)
+		if err != nil {
+			log.Fatal(err)
+		}
+		var re = regexp.MustCompile(`(\w*):\s`)
+		fmt.Println(re.ReplaceAllString(string(serialized), "${1}="))
+
+	} else if format == "json" {
+		marshalled := json.Marshal(pms)
+		fmt.Println(marshalled)
+	} else {
+		log.Fatal("No proper format requested. (yaml, env, json allowed)")
+	}
 }
 
 func init() {
@@ -26,5 +50,6 @@ func init() {
 		},
 		Args: cobra.ExactArgs(1),
 	}
+	cmd.Flags().StringVarP(&format, "format", "f", "json", "the format of gorson get output.")
 	rootCmd.AddCommand(cmd)
 }

go.mod

@@ -3,12 +3,8 @@ module github.com/pbs/gorson
 go 1.13
 
 require (
-	github.com/aws/aws-sdk-go v1.15.83
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/inconshreveable/mousetrap v1.0.0 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/spf13/cobra v0.0.3
-	github.com/spf13/pflag v1.0.3 // indirect
-	github.com/stretchr/testify v1.2.2 // indirect
+	github.com/aws/aws-sdk-go v1.25.41
+	github.com/spf13/cobra v0.0.5
 	golang.org/x/net v0.0.0-20191125084936-ffdde1057850 // indirect
+	gopkg.in/yaml.v2 v2.2.7
 )

go.sum

@@ -1,23 +1,55 @@
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