From 44009c8da24c67129b7f497ac1c106c616658d29 Mon Sep 17 00:00:00 2001
From: Martin <martinweiss@posteo.de>
Date: Wed, 9 Jan 2019 15:09:07 -0800
Subject: [PATCH] =?UTF-8?q?Initial=20commit=20=F0=9F=8E=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .gitignore      |  60 +++++++++++++++++++++++
 .goreleaser.yml |  10 ++++
 README.md       |  11 +++++
 copyenv.go      | 127 ++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 208 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 .goreleaser.yml
 create mode 100644 README.md
 create mode 100644 copyenv.go

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6af2822
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,60 @@
+# Created by https://www.gitignore.io/api/go,osx,visualstudiocode
+
+### OSX ###
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+
+### Go ###
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+### Go Patch ###
+/vendor/
+/Godeps/
+
+copyenv
\ No newline at end of file
diff --git a/.goreleaser.yml b/.goreleaser.yml
new file mode 100644
index 0000000..f7e13d1
--- /dev/null
+++ b/.goreleaser.yml
@@ -0,0 +1,10 @@
+builds:
+- env:
+  - CGO_ENABLED=0
+archive:
+  replacements:
+    darwin: Darwin
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}-next"
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..1f3fdd1
--- /dev/null
+++ b/README.md
@@ -0,0 +1,11 @@
+# Cloud Foundry CLI Copy Env Plugin
+
+Cloud Foundry CLI plugin to export application VCAP_SERVICES and VCAP_APPLICATION.
+
+## Usage
+
+```bash
+copyenv APP_NAME [--all]
+
+export VCAP_SERVICES='...'
+```
diff --git a/copyenv.go b/copyenv.go
new file mode 100644
index 0000000..fefb17b
--- /dev/null
+++ b/copyenv.go
@@ -0,0 +1,127 @@
+package main
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"strings"
+
+	"code.cloudfoundry.org/cli/plugin"
+)
+
+type CopyEnv struct{}
+
+func (c *CopyEnv) retrieveAppNameEnv(cliConnection plugin.CliConnection, appName string) ([]string, error) {
+	var guid string
+
+	apps, err := cliConnection.GetApps()
+	if err != nil {
+		msg := fmt.Sprintf("Failed to retrieve enviroment for \"%s\", is the app name correct?", appName)
+		err = errors.New(msg)
+	}
+
+	for _, element := range apps {
+		if element.Name == appName {
+			guid = element.Guid
+			break
+		}
+	}
+
+	if guid == "" {
+		msg := fmt.Sprintf("Failed to retrieve enviroment for \"%s\", is the app name correct?", appName)
+		err = errors.New(msg)
+	} else {
+		url := fmt.Sprintf("/v2/apps/%s/env", guid)
+		output, err := cliConnection.CliCommandWithoutTerminalOutput("curl", url)
+
+		if err != nil {
+			msg := fmt.Sprintf("Failed to retrieve enviroment for \"%s\", is the app name correct?", appName)
+			err = errors.New(msg)
+		}
+
+		return output, err
+	}
+	return nil, err
+}
+
+func (c *CopyEnv) extractCredentialsJSON(envParent string, credKey string, output []string) ([]byte, error) {
+	err := errors.New("Missing service credentials for application")
+	var envJson []byte
+
+	envKey := strings.Join(output, "")
+	if strings.Contains(envKey, credKey) {
+		var f interface{}
+		err = json.Unmarshal([]byte(envKey), &f)
+		if err != nil {
+			return nil, err
+		}
+
+		envJSON := f.(map[string]interface{})
+		envParentJSON := envJSON[envParent].(map[string]interface{})
+		envJson, err = json.Marshal(envParentJSON[credKey])
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return envJson, err
+}
+
+func (c *CopyEnv) extractAndExportCredentials(envParent string, credKey string, appEnv []string) {
+	creds, err := c.extractCredentialsJSON(envParent, credKey, appEnv)
+	checkErr(err)
+	vcapServices := fmt.Sprintf("export %s='%s';", credKey, string(creds[:]))
+	fmt.Println(vcapServices)
+}
+
+func (c *CopyEnv) Run(cliConnection plugin.CliConnection, args []string) {
+	if len(args) < 2 {
+		checkErr(errors.New("Missing application name"))
+	}
+
+	appName := args[1]
+
+	appEnv, err := c.retrieveAppNameEnv(cliConnection, appName)
+	checkErr(err)
+
+	if len(args) > 2 && args[2] == "--all" {
+		c.extractAndExportCredentials("application_env_json", "VCAP_APPLICATION", appEnv)
+		fmt.Println("")
+	}
+	c.extractAndExportCredentials("system_env_json", "VCAP_SERVICES", appEnv)
+}
+
+func (c *CopyEnv) GetMetadata() plugin.PluginMetadata {
+	return plugin.PluginMetadata{
+		Name: "copyenv",
+		Version: plugin.VersionType{
+			Major: 1,
+			Minor: 0,
+			Build: 0,
+		},
+		Commands: []plugin.Command{
+			plugin.Command{
+				Name:     "copyenv",
+				HelpText: "Export application VCAP_SERVICES.",
+				UsageDetails: plugin.Usage{
+					Usage: "copyenv APP_NAME [--all] - Retrieve and export remote application VCAP_SERVICES.",
+					Options: map[string]string{
+						"all": "Retrieve both VCAP_SERVICES and VCAP_APPLICATION from remote application",
+					},
+				},
+			},
+		},
+	}
+}
+
+func checkErr(err error) {
+	if err != nil {
+		fmt.Fprintln(os.Stderr, "error: ", err)
+		os.Exit(1)
+	}
+}
+
+func main() {
+	plugin.Start(new(CopyEnv))
+}