major(release): add remove command to uninstall addons

cmd/add.go

@@ -5,6 +5,7 @@ package cmd
 
 import (
 	"fmt"
+	"github.com/m-triassi/wowforge-cli/internal/search"
 	"github.com/m-triassi/wowforge-cli/pkg/curseforge"
 	"github.com/spf13/viper"
 	"strconv"
@@ -46,7 +47,7 @@ update that addon in isolation.`,
 		}
 
 		list := viper.GetIntSlice("addons")
-		if !contains(list, modId) {
+		if !search.Contains(list, modId) {
 			list = append(list, modId)
 			viper.Set("addons", list)
 			viper.WriteConfig()
@@ -57,12 +58,3 @@ update that addon in isolation.`,
 func init() {
 	rootCmd.AddCommand(addCmd)
 }
-
-func contains(haystack []int, needle int) bool {
-	for _, value := range haystack {
-		if value == needle {
-			return true
-		}
-	}
-	return false
-}

cmd/remove.go

@@ -0,0 +1,56 @@
+/*
+Copyright © 2023 NAME HERE <EMAIL ADDRESS>
+*/
+package cmd
+
+import (
+	"fmt"
+	"github.com/m-triassi/wowforge-cli/internal/files"
+	"github.com/m-triassi/wowforge-cli/internal/search"
+	"github.com/m-triassi/wowforge-cli/pkg/curseforge"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"path/filepath"
+	"regexp"
+	"strconv"
+)
+
+// removeCmd represents the remove command
+var removeCmd = &cobra.Command{
+	Use:   "remove <addon id>",
+	Short: "Remove the specified addon from game install",
+	Long: `Removes the passed addon id from the tracked list of addons, and attempts to delete
+the associated files for that addon.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		modId, err := strconv.Atoi(args[0])
+		if err != nil {
+			panic(fmt.Errorf("passed mod ID is not strictly an integer: %w", err))
+		}
+
+		addons := viper.GetIntSlice("addons")
+		remove := search.Find(addons, modId)
+		addons = append(addons[:remove], addons[remove+1:]...)
+
+		fileSet, _ := curseforge.GetFiles(modId)
+		filename := curseforge.NegotiateFile(fileSet).Filename
+
+		re := regexp.MustCompile("[a-zA-Z]*")
+		res := string(re.Find([]byte(filename)))
+
+		installPath := viper.GetString("install")
+		del, err := filepath.Glob(installPath + res + "*")
+
+		if err != nil {
+			panic(fmt.Errorf("could not read filesystem at path (%s): %w", installPath, err))
+		}
+
+		filesystem.DeleteAll(del)
+
+		viper.Set("addons", addons)
+		viper.WriteConfig()
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(removeCmd)
+}

internal/files/filesystem.go

@@ -0,0 +1,19 @@
+package filesystem
+
+import (
+	"fmt"
+	"os"
+)
+
+func Delete(filename string) {
+	err := os.RemoveAll(filename)
+	if err != nil {
+		panic(fmt.Errorf("could not find target file to delete: %w", err))
+	}
+}
+
+func DeleteAll(targets []string) {
+	for _, target := range targets {
+		Delete(target)
+	}
+}

internal/search/search.go

@@ -0,0 +1,14 @@
+package search
+
+func Contains(haystack []int, needle int) bool {
+	return Find(haystack, needle) >= 0
+}
+
+func Find(haystack []int, needle int) int {
+	for index, value := range haystack {
+		if value == needle {
+			return index
+		}
+	}
+	return -1
+}