[OCONF-166] coconut conf import command (#71)

* [OCONF-166] Add coconut import command

* [OCONF-166] Refactor

* [OCONF-166] Add extension check

* [OCONF-166] Fix compilation issues

* [OCONF-166] Add component & entry check for new entries

* [OCONF-166] Add extension file logic

* [OCONF-166] Change error messages

* [OCONF-166] Syntax updates

* [OCONF-166] Address comments on strings

* [OCONF-166] Fix compilation issue

* [OCONF-166] Update user message

* [OCONF-166] Add component/entry format

* [OCONF-166] Remove commented lines

* [OCONF-166] Update documentation

Author: graduta

coconut/cmd/configuration_history.go

@@ -39,7 +39,7 @@ coconut conf history <component>/<entry>`,
 	Long: `The configuration history command returns all entries with 
 all of their associated timestamps or returns all timestamps for a specified component and entry`,
 	Run: configuration.WrapCall(configuration.History),
-	Args:  cobra.RangeArgs(0, 3),
+	Args: cobra.RangeArgs(0, 3),
 }
 
 func init() {

coconut/cmd/configuration_import.go

@@ -0,0 +1,55 @@
+/*
+ * === This file is part of ALICE O² ===
+ *
+ * Copyright 2019 CERN and copyright holders of ALICE O².
+ * Author: George Raduta <george.raduta@cern.ch>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * In applying this license CERN does not waive the privileges and
+ * immunities granted to it by virtue of its status as an
+ * Intergovernmental Organization or submit itself to any jurisdiction.
+ */
+
+package cmd
+
+import (
+	"github.com/AliceO2Group/Control/coconut/configuration"
+	"github.com/spf13/cobra"
+)
+
+var configurationImportCmd = &cobra.Command{
+	Use:   "import <component> <entry> <file_path>",
+	Aliases: []string{"i", "imp"},
+	Example: `coconut conf import <component> <entry> <file_path>
+coconut conf import <component>/<entry> <file_path>
+coconut conf import <component> <entry> <file_path> --new-component
+coconut conf import <component>/<entry> <file_path> --format=json
+coconut conf import <component> <entry> <file_path>.json
+`,
+	Short: "Import a configuration file for the specified component and entry",
+	Long: `The configuration import command generates a timestamp and saves
+the configuration file to Consul under the <component>/<entry>/<timestamp> path. 
+Supported configuration file types are JSON, YAML, TOML and INI, 
+and their file extensions are recognized automatically.`,
+	Run: configuration.WrapCall(configuration.Import),
+	Args:  cobra.RangeArgs(1, 4),
+}
+
+func init() {
+	configurationCmd.AddCommand(configurationImportCmd)
+	configurationImportCmd.Flags().BoolP("new-component", "n",  false, "create a new configuration component while importing entry")
+	configurationImportCmd.Flags().StringP("format", "f",  "", "force a specific configuration file type, overriding any file extension")
+
+}

coconut/cmd/configuration_show.go

@@ -38,9 +38,9 @@ coconut conf show <component>/<entry>
 coconut conf show <component>/<entry> -t <timestamp>
 coconut conf show <component>/<entry>@<timestamp>`,
 	Short: "Show configuration for the component and entry specified",
-	Long: `The configuration show command requests by default the latest 
-configuration for the specified component and entry. It can request exact 
-time configuration by specifying wanted timestamp as flag`,
+	Long: `The configuration show command returns the most recent 
+configuration revision for the specified component and entry. 
+It can also return a specific revision, requested with the --timestamp/-t flag`,
 	Run: configuration.WrapCall(configuration.Show),
 	Args:  cobra.RangeArgs(0, 3),
 }