server: Change server startup message. (#2195)

This change brings in the new agreed startup message
for the server.

Adds additional links point to Minio SDKs as well.

server-startup-msg.go

@@ -0,0 +1,92 @@
+/*
+ * Minio Cloud Storage, (C) 2016 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"fmt"
+	"runtime"
+	"strings"
+
+	"github.com/minio/mc/pkg/console"
+)
+
+// Documentation links, these are part of message printing code.
+const (
+	mcQuickStartGuide   = "https://docs.minio.io/docs/minio-client-quick-start-guide"
+	goQuickStartGuide   = "https://docs.minio.io/docs/golang-client-quickstart-guide"
+	jsQuickStartGuide   = "https://docs.minio.io/docs/javascript-client-quickstart-guide"
+	javaQuickStartGuide = "https://docs.minio.io/docs/java-client-quickstart-guide"
+	pyQuickStartGuide   = "https://docs.minio.io/docs/python-client-quickstart-guide"
+)
+
+// generates format string depending on the string length and padding.
+func getFormatStr(strLen int, padding int) string {
+	formatStr := fmt.Sprintf("%ds", strLen+padding)
+	return "%" + formatStr
+}
+
+// Prints the formatted startup message.
+func printStartupMessage(endPoints []string) {
+	printServerCommonMsg(endPoints)
+	printCLIAccessMsg(endPoints[0])
+	printObjectAPIMsg()
+}
+
+// Prints common server startup message. Prints credential, region and browser access.
+func printServerCommonMsg(endPoints []string) {
+	// Get saved credentials.
+	cred := serverConfig.GetCredential()
+
+	// Get saved region.
+	region := serverConfig.GetRegion()
+
+	endPointStr := strings.Join(endPoints, "  ")
+	// Colorize the message and print.
+	console.Println(colorMagenta("\nEndpoint: ") + colorGreen(fmt.Sprintf(getFormatStr(len(endPointStr), 1), endPointStr)))
+	console.Println(colorMagenta("AccessKey: ") + colorWhite(fmt.Sprintf("%s ", cred.AccessKeyID)))
+	console.Println(colorMagenta("SecretKey: ") + colorWhite(fmt.Sprintf("%s ", cred.SecretAccessKey)))
+	console.Println(colorMagenta("Region: ") + colorWhite(fmt.Sprintf(getFormatStr(len(region), 3), region)))
+
+	console.Println(colorMagenta("\nBrowser Access:"))
+	console.Println(colorGreen(fmt.Sprintf(getFormatStr(len(endPointStr), 3), endPointStr)))
+}
+
+// Prints startup message for command line access. Prints link to our documentation
+// and custom platform specific message.
+func printCLIAccessMsg(endPoint string) {
+	// Get saved credentials.
+	cred := serverConfig.GetCredential()
+
+	// Configure 'mc', following block prints platform specific information for minio client.
+	console.Println(colorMagenta("\nCommand-line Access: ") + colorWhite(mcQuickStartGuide))
+	if runtime.GOOS == "windows" {
+		mcMessage := fmt.Sprintf("$ mc.exe config host add myminio %s %s %s", endPoint, cred.AccessKeyID, cred.SecretAccessKey)
+		console.Println(fmt.Sprintf(getFormatStr(len(mcMessage), 3), mcMessage))
+	} else {
+		mcMessage := fmt.Sprintf("$ ./mc config host add myminio %s %s %s", endPoint, cred.AccessKeyID, cred.SecretAccessKey)
+		console.Println(fmt.Sprintf(getFormatStr(len(mcMessage), 3), mcMessage))
+	}
+}
+
+// Prints startup message for Object API acces, prints link to our SDK documentation.
+func printObjectAPIMsg() {
+	console.Println("\nObject API (Amazon S3 compatible):")
+	console.Println("   Go: " + fmt.Sprintf(getFormatStr(len(goQuickStartGuide), 8), goQuickStartGuide))
+	console.Println("   Java: " + fmt.Sprintf(getFormatStr(len(javaQuickStartGuide), 6), javaQuickStartGuide))
+	console.Println("   Python: " + fmt.Sprintf(getFormatStr(len(pyQuickStartGuide), 4), pyQuickStartGuide))
+	console.Println("   JavaScript: " + jsQuickStartGuide)
+}