Add delete tag command

Author: John Frederick

README.md

@@ -213,7 +213,7 @@ Contributors are welcomed with love! Please read [CONTRIBUTING.md](./CONTRIBUTIN
 * [x] `describe tag [tag name] [--project] [flags]`
 * [x] `new tag [tag name] [--project] [flags]`
 * [ ] `edit tag [tag name] [--project] [flags]`
-* [ ] `delete tag [tag name] [--project]`
+* [x] `delete tag [tag name] [--project]`
 
 ### Project Hooks
 

cmd/delete_tag.go

@@ -0,0 +1,61 @@
+// Copyright © 2018 github.com/devopsctl authors
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var deleteTagCmd = &cobra.Command{
+	Use:     "tag",
+	Aliases: []string{"t"},
+	Short:   "Delete a project tag",
+	Example: `# delete v1.0 tag from project groupx/myapp
+gitlabctl delete tag v1.0 --project=groupx/myapp`,
+	SilenceErrors: true,
+	SilenceUsage:  true,
+	DisableAutoGenTag: true,
+	Args:          cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return deleteTag(getFlagString(cmd, "project"), args[0])
+	},
+}
+
+func init() {
+	deleteCmd.AddCommand(deleteTagCmd)
+	addProjectFlag(deleteTagCmd)
+	verifyMarkFlagRequired(deleteTagCmd, "project")
+}
+
+func deleteTag(project, tag string) error {
+	git, err := newGitlabClient()
+	if err != nil {
+		return err
+	}
+	_, err = git.Tags.DeleteTag(project, tag)
+	if err != nil {
+		return err
+	}
+	fmt.Printf("Tag (%s) from project (%s) has been deleted\n", tag, project)
+	return nil
+}

cmd/delete_tag_test.go

@@ -0,0 +1,76 @@
+// Copyright © 2018 github.com/devopsctl authors
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package cmd
+
+import (
+	"testing"
+
+	gitlab "github.com/xanzy/go-gitlab"
+)
+
+func TestDeleteTagCmd(t *testing.T) {
+	tt := []struct {
+		name     string
+		flagsMap map[string]string
+		args     []string
+		expect   testResult
+	}{
+		{
+			name: "delete an existent tag",
+			flagsMap: map[string]string{
+				"project": "Group1/project1",
+			},
+			args:   []string{"sample_5.0"},
+			expect: pass,
+		},
+		{
+			name: "delete a non existent tag fails",
+			flagsMap: map[string]string{
+				"project": "Group1/project1",
+			},
+			args:   []string{"nil-tag"},
+			expect: fail,
+		},
+	}
+
+	for _, tc := range tt {
+		// SETUP
+		// Create tag before deleting
+		if tc.expect == pass {
+			if _, err := newTag(tc.flagsMap["project"],
+				&gitlab.CreateTagOptions{
+					TagName: gitlab.String(tc.args[0]),
+					Ref:    gitlab.String("master"),
+				}); err != nil {
+				tInfo(err)
+			}
+		}
+		t.Run(tc.name, func(t *testing.T) {
+			execT := execTestCmdFlags{
+				t:        t,
+				cmd:      deleteTagCmd,
+				flagsMap: tc.flagsMap,
+				args:     tc.args,
+			}
+			stdout, execResult := execT.executeCommand()
+			assertEqualResult(t, execResult, tc.expect, printFlagsTable(tc.flagsMap, stdout))
+		})
+	}
+}