Added delete config file command

cmd/config/io.go

@@ -38,3 +38,8 @@ func WriteConfigFile(configuration OneBuildConfiguration) error {
 	content := string(yamlData)
 	return ioutil.WriteFile(OneBuildConfigFileName, []byte(content), 0777)
 }
+
+// DeleteConfigFile deletes the config file
+func DeleteConfigFile() error {
+	return os.Remove(OneBuildConfigFileName)
+}

cmd/delete.go

@@ -0,0 +1,53 @@
+package cmd
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/gopinath-langote/1build/cmd/config"
+	"github.com/gopinath-langote/1build/cmd/utils"
+	"github.com/spf13/cobra"
+)
+
+var shouldDelete bool
+
+var deleteCmd = &cobra.Command{
+	Use:   "delete",
+	Short: "Deletes project configuration",
+	Long: `Deletes project configuration
+
+- To forcibly delete file without asking for consent use -f or --force  
+
+For example:
+
+  1build delete
+  1build delete --force`,
+	PreRun: func(cmd *cobra.Command, args []string) {
+		if !config.IsConfigFilePresent() {
+			fmt.Println(utils.Colored("No configuration file found!", utils.RED))
+			utils.ExitError()
+		}
+	},
+	Run: func(cmd *cobra.Command, args []string) {
+		if !shouldDelete {
+			fmt.Printf("Delete 1build configuration file? (y/N) ")
+			reader := bufio.NewReader(os.Stdin)
+			prompt, err := reader.ReadString('\n')
+			if err == nil && strings.ToLower(strings.TrimSpace(prompt)) == "y" {
+				shouldDelete = true
+			}
+		}
+		if shouldDelete {
+			if err := config.DeleteConfigFile(); err != nil {
+				fmt.Println(utils.Colored("Error deleting configuration file.", utils.RED))
+			}
+		}
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(deleteCmd)
+	deleteCmd.Flags().BoolVarP(&shouldDelete, "force", "f", false, "Forcibly delete configuration file")
+}

testing/fixtures/command_delete_fixtures.go

@@ -0,0 +1,57 @@
+package fixtures
+
+import (
+	"os"
+	"testing"
+
+	"github.com/gopinath-langote/1build/testing/def"
+	"github.com/gopinath-langote/1build/testing/utils"
+	"github.com/stretchr/testify/assert"
+)
+
+func featureDeleteTestData() []Test {
+	feature := "delete"
+	return []Test{
+		shouldDeleteConfigFile(feature),
+		shouldFailIfFileDoesntExists(feature, ""),
+		shouldFailIfFileDoesntExists(feature, "--force"),
+	}
+}
+
+func shouldDeleteConfigFile(feature string) Test {
+	return Test{
+		Feature: feature,
+		Name:    "shouldDeleteConfigFile",
+		CmdArgs: []string{"delete", "--force"},
+		Setup: func(dir string) error {
+			return utils.CreateConfigFile(dir, "project: Sample Project\ncommands:\n")
+		},
+		Assertion: func(dir string, actualOutput string, t *testing.T) bool {
+			return assertFileNotExists(t, dir+"/"+def.ConfigFileName)
+		},
+	}
+}
+
+func shouldFailIfFileDoesntExists(feature string, arg string) Test {
+	expectedOutput := "No configuration file found!"
+	return Test{
+		Feature: feature,
+		Name:    "shouldFailIfFileDoesntExists",
+		CmdArgs: []string{"delete", arg},
+		Assertion: func(dir string, actualOutput string, t *testing.T) bool {
+			return assert.Contains(t, actualOutput, expectedOutput)
+		},
+	}
+}
+
+func assertFileNotExists(t *testing.T, path string) bool {
+	_, err := os.Stat(path)
+	if err == nil {
+		assert.Fail(t, "Delete command did not delete config file!")
+		return false
+	} else if !os.IsNotExist(err) {
+		assert.Fail(t, "error running os.Stat(%q): %s", path, err)
+		return false
+	}
+	return true
+}

testing/fixtures/fixures.go

@@ -29,6 +29,7 @@ func GetFixtures() []Test {
 		featureUnsetTestsData(),
 
 		featureFlagVersionTestData(),
+		featureDeleteTestData(),
 	}
 
 	var r1 []Test