Added a 404 error, a build script, and removed the binary for cmd.

.gitignore

@@ -1 +1,2 @@
 .idea
+/bin

Makefile

@@ -0,0 +1,23 @@
+DESTDIR ?= /usr
+BUILDDIR ?= dist
+CGO_ENABLED ?= 0
+
+all: cmd
+
+cmd ./cmd/eon/main.go:
+	mkdir -p $(BUILDDIR)/bin
+	go build -o $(BUILDDIR)/bin/eon ./cmd/eon -ldflags "-s -w"
+
+
+
+install:
+	install -d $(DESTDIR)/bin
+	install -m 755 $(BUILDDIR)/bin/eon $(DESTDIR)/bin/eon
+
+uninstall:
+	rm -f $(DESTDIR)/bin/eon
+
+test:
+
+clean:
+	rm -rf $(BUILDDIR)

build.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# Create the bin directory
+mkdir -p bin
+
+# Build the CLI
+echo "Building the CLI..."
+CGO_ENABLED=0 go build -ldflags "-s -w" -o ./bin/eon ./cmd/main.go
+
+# Install the CLI
+echo "Installing the CLI..."
+sudo install ./bin/eon /bin
+echo "eon installed successfully!"

cmd/main.go

@@ -10,9 +10,9 @@ import (
 	"os"
 	"regexp"
 	"sort"
+	"strconv"
 	"strings"
 
-	"math/big"
 	"net/http"
 	"net/url"
 
@@ -64,7 +64,7 @@ func main() {
 				fmt.Println("Removes unused dependencies.")
 			case "repo":
 				fmt.Println("Usage: eon repo (add/del/list)")
-				fmt.Println("- add <url>: adds a repository.")
+				fmt.Println("- add <packageUrl>: adds a repository.")
 				fmt.Println("- del <name>: removes a repository.")
 				fmt.Println("- list: lists repositories.")
 			case "help":
@@ -89,8 +89,8 @@ func main() {
 		for _, pkg := range os.Args[2:] {
 			if !strings.HasPrefix(pkg, "-") {
 				fileInfo, err := os.Stat(pkg)
-				if err != nil {
+				if err != nil || fileInfo.IsDir() {
-					if os.IsNotExist(err) {
+					if os.IsNotExist(err) || fileInfo.IsDir() {
 						// This unholy regex is a package name validator. It validates repository-name/package-name/1.0.0-prerelease.1+meta.1
 						// The regex is so unholy it breaks JetBrains' regex parser, so I had to disable it.
 						//goland:noinspection RegExpUnnecessaryNonCapturingGroup
@@ -105,6 +105,9 @@ func main() {
 						} else {
 							repoPackageList = append(repoPackageList, pkg)
 						}
+					} else {
+						fmt.Println(color.RedString("Failed to get file information: " + err.Error()))
+						os.Exit(1)
 					}
 				} else {
 					localPackageList = append(localPackageList, pkg)
@@ -161,7 +164,7 @@ func main() {
 				var vagueErr error
 				var epkBytes bytes.Buffer
 				if !inMemoryMode {
-					preMap, err, vagueErr = lib.PreMapEPK(lib.StreamOrBytes{FileStream: epkFile, IsFileStream: true}, fileInfos[pkg].Size())
+					preMap, err, vagueErr = lib.PreMapEPK(lib.StreamOrBytes{FileStream: epkFile, IsFileStream: true}, uint64(fileInfos[pkg].Size()))
 				} else {
 					_, err = io.Copy(bufio.NewWriter(&epkBytes), epkFile)
 					if err != nil {
@@ -169,11 +172,11 @@ func main() {
 							", have you tried disabling in-memory mode?"))
 						os.Exit(1)
 					}
-					err := epkFile.Close()
+					err = epkFile.Close()
 					if err != nil {
 						fmt.Println(color.HiYellowString("Failed to close package file: " + err.Error() + ", memory leak possible."))
 					}
-					preMap, err, vagueErr = lib.PreMapEPK(lib.StreamOrBytes{Bytes: epkBytes.Bytes()}, fileInfos[pkg].Size())
+					preMap, err, vagueErr = lib.PreMapEPK(lib.StreamOrBytes{Bytes: epkBytes.Bytes()}, uint64(fileInfos[pkg].Size()))
 				}
 				if err != nil || vagueErr != nil {
 					common.PreMapEPKHandleError(err, vagueErr, logger)
@@ -189,11 +192,15 @@ func main() {
 				}
 
 				// Check if the architecture is supported.
-				if preMap.DisplayData.Architecture != "noarch" || preMap.DisplayData.Architecture != string(uts.Machine[:]) {
+				if preMap.DisplayData.Architecture != strings.TrimRight(string(uts.Machine[:]), "\x00") {
-					fmt.Println(color.RedString("Package architecture not supported: " + preMap.DisplayData.Architecture))
+					if preMap.DisplayData.Architecture != "noarch" {
-					os.Exit(1)
+						fmt.Println(color.RedString("Package architecture not supported: " + preMap.DisplayData.Architecture))
+						os.Exit(1)
+					}
 				}
 
+				preMap.DisplayData.IsDependency = false
+
 				var installPackage common.InstallPackage
 				installPackage.EPKPreMap = &preMap
 				installPackage.Url = ""
@@ -222,13 +229,13 @@ func main() {
 				if exists {
 					if version.Compare(&preMap.DisplayData.Version) != -1 {
 						if !forceMode {
-							skipEpk := []string{preMap.DisplayData.Name, preMap.DisplayData.Architecture, preMap.DisplayData.Version.String(), "Local file", humanize.BigIBytes(preMap.DisplayData.DecompressedSize), "Skip"}
+							skipEpk := []string{preMap.DisplayData.Name, preMap.DisplayData.Architecture, preMap.DisplayData.Version.String(), "Local file", humanize.Bytes(preMap.DisplayData.DecompressedSize), "Skip"}
 							skipEpkList = append(skipEpkList, skipEpk)
 						} else {
 							installPackage.IsForced = true
 							var emptyList []string
 							var addedDeps int
-							epkList, addedDeps, err = common.HandleDependencies(dependencies, installPackage, 0, []lib.RemoteEPK{}, common.DefaultListRemotePackagesInDB, epkList, &emptyList, logger)
+							epkList, addedDeps, err = common.HandleDependencies(dependencies, installPackage, 0, []lib.RemoteEPK{}, common.DefaultListRemotePackagesInDB, common.DefaultListEPKsInDB, epkList, &emptyList, logger)
 							if err != nil {
 								fmt.Println(color.RedString("Failed to handle dependencies: " + err.Error()))
 								os.Exit(1)
@@ -240,7 +247,7 @@ func main() {
 					} else {
 						var emptyList []string
 						var addedDeps int
-						epkList, addedDeps, err = common.HandleDependencies(dependencies, installPackage, 0, []lib.RemoteEPK{}, common.DefaultListRemotePackagesInDB, epkList, &emptyList, logger)
+						epkList, addedDeps, err = common.HandleDependencies(dependencies, installPackage, 0, []lib.RemoteEPK{}, common.DefaultListRemotePackagesInDB, common.DefaultListEPKsInDB, epkList, &emptyList, logger)
 						if err != nil {
 							fmt.Println(color.RedString("Failed to handle dependencies: " + err.Error()))
 							os.Exit(1)
@@ -253,7 +260,7 @@ func main() {
 					preMap.IsUpgrade = false
 					var emptyList []string
 					var addedDeps int
-					epkList, addedDeps, err = common.HandleDependencies(dependencies, installPackage, 0, []lib.RemoteEPK{}, common.DefaultListRemotePackagesInDB, epkList, &emptyList, logger)
+					epkList, addedDeps, err = common.HandleDependencies(dependencies, installPackage, 0, []lib.RemoteEPK{}, common.DefaultListRemotePackagesInDB, common.DefaultListEPKsInDB, epkList, &emptyList, logger)
 					if err != nil {
 						fmt.Println(color.RedString("Failed to handle dependencies: " + err.Error()))
 						os.Exit(1)
@@ -318,6 +325,8 @@ func main() {
 					os.Exit(1)
 				}
 
+				preMap.DisplayData.IsDependency = false
+
 				// Map the data we have
 				epkEntry.Priority = 0
 				epkEntry.EPKPreMap = &preMap
@@ -342,11 +351,14 @@ func main() {
 					}
 
 					// Calculate the total size of the package
-					contentLength := new(big.Int)
+					contentLength, err := strconv.ParseUint(epkBytes.Header.Get("Content-Length"), 10, 64)
-					contentLength.SetString(epkBytes.Header.Get("Content-Length"), 10)
+					if err != nil {
+						fmt.Println(color.RedString("Failed to get content length: " + err.Error()))
+						os.Exit(1)
+					}
 
 					// Print that we are downloading the package
-					fmt.Println("\nDownloading package: " + preMap.DisplayData.Name + " (" + humanize.BigIBytes(contentLength) + ")")
+					fmt.Println("\nDownloading package: " + preMap.DisplayData.Name + " (" + humanize.Bytes(contentLength) + ")")
 
 					// Hide the cursor for reasons explained below.
 					fmt.Print("\033[?25l")
@@ -366,8 +378,8 @@ func main() {
 					// Set the progress to 100%
 					logger.LogFunc(lib.Log{
 						Level:    "PROGRESS",
-						Progress: big.NewInt(1),
+						Progress: 1,
-						Total:    big.NewInt(1),
+						Total:    1,
 					})
 
 					// Show the cursor again because we're done with the progress bar.
@@ -393,14 +405,14 @@ func main() {
 					if version.Compare(&preMap.DisplayData.Version) != -1 {
 						// If the version is the same or newer, skip the package.
 						if !forceMode {
-							skipEpkList = append(skipEpkList, []string{preMap.DisplayData.Name, preMap.DisplayData.Architecture, preMap.DisplayData.Version.String(), remoteEPK.Repository.Name, humanize.BigIBytes(preMap.DisplayData.DecompressedSize), "Skip"})
+							skipEpkList = append(skipEpkList, []string{preMap.DisplayData.Name, preMap.DisplayData.Architecture, preMap.DisplayData.Version.String(), remoteEPK.Repository.Name, humanize.Bytes(preMap.DisplayData.DecompressedSize), "Skip"})
 						} else {
 							// If the version is the same or newer, but the user wants to force the installation, install it.
 							epkEntry.IsForced = true
 							// We can let it use our remoteEPKList to save a SQL query.
 							var emptyList []string
 							var addedDeps int
-							epkList, addedDeps, err = common.HandleDependencies(dependencies, epkEntry, 0, remoteEpkList, common.DefaultListRemotePackagesInDB, epkList, &emptyList, logger)
+							epkList, addedDeps, err = common.HandleDependencies(dependencies, epkEntry, 0, remoteEpkList, common.DefaultListRemotePackagesInDB, common.DefaultListEPKsInDB, epkList, &emptyList, logger)
 							if err != nil {
 								fmt.Println(color.RedString("Failed to handle dependencies: " + err.Error()))
 								os.Exit(1)
@@ -414,7 +426,7 @@ func main() {
 						// If the version is older, install it.
 						var emptyList []string
 						var addedDeps int
-						epkList, addedDeps, err = common.HandleDependencies(dependencies, epkEntry, 0, remoteEpkList, common.DefaultListRemotePackagesInDB, epkList, &emptyList, logger)
+						epkList, addedDeps, err = common.HandleDependencies(dependencies, epkEntry, 0, remoteEpkList, common.DefaultListRemotePackagesInDB, common.DefaultListEPKsInDB, epkList, &emptyList, logger)
 						if err != nil {
 							fmt.Println(color.RedString("Failed to handle dependencies: " + err.Error()))
 							os.Exit(1)
@@ -427,7 +439,7 @@ func main() {
 					// If the package is not installed, install it.
 					var emptyList []string
 					var addedDeps int
-					epkList, addedDeps, err = common.HandleDependencies(dependencies, epkEntry, 0, remoteEpkList, common.DefaultListRemotePackagesInDB, epkList, &emptyList, logger)
+					epkList, addedDeps, err = common.HandleDependencies(dependencies, epkEntry, 0, remoteEpkList, common.DefaultListRemotePackagesInDB, common.DefaultListEPKsInDB, epkList, &emptyList, logger)
 					if err != nil {
 						fmt.Println(color.RedString("Failed to handle dependencies: " + err.Error()))
 						os.Exit(1)
@@ -488,7 +500,7 @@ func main() {
 				} else {
 					finalisedList[3] = pkg.Repository.Name
 				}
-				finalisedList[4] = humanize.BigIBytes(pkg.EPKPreMap.DisplayData.DecompressedSize)
+				finalisedList[4] = humanize.Bytes(pkg.EPKPreMap.DisplayData.DecompressedSize)
 				if pkg.IsForced {
 					finalisedList[5] = "Forced installation"
 				} else if pkg.EPKPreMap.IsUpgrade {
@@ -507,8 +519,8 @@ func main() {
 				}
 				fmt.Println("Transaction Summary")
 				fmt.Println("\nInstalling " + humanize.Comma(int64(len(epkList))) + " packages, of which " + humanize.Comma(int64(dependencies)) + " are dependencies.")
-				fmt.Println("Total download size: " + humanize.BigIBytes(common.GetTotalSize(epkList)))
+				fmt.Println("Total download size: " + humanize.Bytes(common.GetTotalSize(epkList)))
-				fmt.Println("Total installed size: " + humanize.BigIBytes(common.GetTotalInstalledSize(epkList)) + "\n")
+				fmt.Println("Total installed size: " + humanize.Bytes(common.GetTotalInstalledSize(epkList)) + "\n")
 				var response string
 				if !yesMode {
 					response = logger.LogFunc(lib.Log{
@@ -548,8 +560,12 @@ func main() {
 								}
 
 								// Start streaming the package into a buffer
-								contentLength := new(big.Int).SetBytes([]byte(epkBytes.Header.Get("Content-Length")))
+								contentLength, err := strconv.ParseUint(epkBytes.Header.Get("Content-Length"), 10, 64)
-								fmt.Println("\nDownloading package: " + installPackage.EPKPreMap.DisplayData.Name + " (" + humanize.BigIBytes(contentLength) + ")")
+								if err != nil {
+									fmt.Println(color.RedString("Failed to get content length: " + err.Error()))
+									os.Exit(1)
+								}
+								fmt.Println("\nDownloading package: " + installPackage.EPKPreMap.DisplayData.Name + " (" + humanize.Bytes(contentLength) + ")")
 								var buffer bytes.Buffer
 								_, err = io.Copy(&lib.ProgressWriter{
 									Logger: logger,
@@ -564,8 +580,8 @@ func main() {
 								// Set the progress to 100%
 								logger.LogFunc(lib.Log{
 									Level:    "PROGRESS",
-									Progress: big.NewInt(1),
+									Progress: 1,
-									Total:    big.NewInt(1),
+									Total:    1,
 								})
 
 								// Close the response body
@@ -637,7 +653,7 @@ func main() {
 		switch os.Args[2] {
 		case "add":
 			if len(os.Args) < 4 {
-				fmt.Println("Usage: eon repo add <url>")
+				fmt.Println("Usage: eon repo add <packageUrl>")
 				os.Exit(1)
 			} else {
 				err := common.EstablishDBConnection(logger)
@@ -785,7 +801,7 @@ func main() {
 				finalisedList[1] = pkg.DisplayData.Architecture
 				finalisedList[2] = pkg.DisplayData.Version.String()
 				finalisedList[3] = repositoryMap[pkg.Name].Name
-				finalisedList[4] = humanize.BigIBytes(decompressedSizeMap[pkg.Name])
+				finalisedList[4] = humanize.Bytes(decompressedSizeMap[pkg.Name])
 				finalisedList[5] = "Remove"
 				for _, item := range finalisedList {
 					common.PrintWithEvenPadding(item, maxSize)
@@ -796,11 +812,11 @@ func main() {
 			}
 			fmt.Println("Transaction Summary")
 			fmt.Println("\nRemoving " + humanize.Comma(int64(len(packageRemoveList))) + " packages.")
-			space := new(big.Int)
+			var space uint64
 			for _, pkg := range packageRemoveList {
-				space = new(big.Int).Add(space, decompressedSizeMap[pkg.Name])
+				space += decompressedSizeMap[pkg.Name]
 			}
-			fmt.Println("Total reclaimed space: " + humanize.BigIBytes(space) + "\n")
+			fmt.Println("Total reclaimed space: " + humanize.Bytes(space) + "\n")
 			response := logger.LogFunc(lib.Log{
 				Level:   "INFO",
 				Content: "Proceed with removal (y/n)?",
@@ -832,8 +848,31 @@ func main() {
 			os.Exit(1)
 		}
 
+		width, _, err := term.GetSize(int(os.Stdout.Fd()))
+		if err != nil {
+			fmt.Println(color.RedString("Failed to get terminal width: " + err.Error()))
+			os.Exit(1)
+		}
+
+		if width < 15 {
+			fmt.Println(color.RedString("Terminal too small. Minimum required width: 15 characters."))
+			os.Exit(1)
+		}
+
+		maxWidth := width / 3
+
 		switch os.Args[2] {
 		case "remote":
+			// Refresh the package list.
+			err = common.RefreshPackageList(common.DefaultListRepositoriesInDB, common.DefaultAddRemotePackageToDB,
+				common.DefaultGetFingerprintFromDB, common.DefaultAddFingerprintToDB, common.DefaultCheckRepositoryInDB,
+				common.DefaultAddRepositoryToDB, common.DefaultListRemotePackagesInDB, common.DefaultRemoveRemotePackageFromDB,
+				logger)
+			if err != nil {
+				fmt.Println(color.RedString("Failed to refresh package list: " + err.Error()))
+				os.Exit(1)
+			}
+
 			remoteEpkList, err := common.DefaultListRemotePackagesInDB()
 			if err != nil {
 				fmt.Println(color.RedString("Failed to list remote packages: " + err.Error()))
@@ -842,17 +881,336 @@ func main() {
 			if len(remoteEpkList) == 0 {
 				fmt.Println("No remote packages.")
 			} else {
-				fmt.Println("Remote packages:")
+				fmt.Println("\nRemote packages:")
-				for _, epk := range remoteEpkList {
+				for range width {
-					fmt.Println("\n" + epk.Name + ":\n" +
+					fmt.Print("=")
-						"- " + epk.Description +
-						"\n- Author: " + epk.Author +
-						"\n- Size to download: " + humanize.Bytes(uint64(epk.CompressedSize)) +
-						"\n- Version: " + epk.Version.String() +
-						"\n- Architecture: " + epk.Architecture +
-						"\n- Repository: " + epk.Repository.Name)
 				}
+				for _, item := range []string{"Name", "Version", "Repository"} {
+					common.PrintWithEvenPadding(item, maxWidth)
+				}
+				for range width {
+					fmt.Print("=")
+				}
+				for _, epk := range remoteEpkList {
+					var printMap []string
+					printMap = append(printMap, epk.Name, epk.Version.String(), epk.Repository.Name)
+					for _, item := range printMap {
+						common.PrintWithEvenPadding(item, maxWidth)
+					}
+					fmt.Println()
+				}
+				for range width {
+					fmt.Print("=")
+				}
+			}
+		case "local":
+			epkMap, _, repositoryMap, _, err := common.DefaultListEPKsInDB()
+			if err != nil {
+				fmt.Println(color.RedString("Failed to list installed packages: " + err.Error()))
+				os.Exit(1)
+			}
+
+			if len(epkMap) == 0 {
+				fmt.Println("No local packages.")
+			} else {
+				// Sort the map by name.
+				var epkList []string
+				for epk := range epkMap {
+					epkList = append(epkList, epk)
+				}
+				sort.Strings(epkList)
+				fmt.Println("Local packages:")
+				for range width {
+					fmt.Print("=")
+				}
+				for _, item := range []string{"Name", "Version", "Repository"} {
+					common.PrintWithEvenPadding(item, maxWidth)
+				}
+				for range width {
+					fmt.Print("=")
+				}
+				for _, epk := range epkList {
+					version := epkMap[epk].Version
+					var printMap []string
+					printMap = append(printMap, epk, version.String(), repositoryMap[epk].Name)
+					for _, item := range printMap {
+						common.PrintWithEvenPadding(item, maxWidth)
+					}
+					fmt.Println()
+				}
+				for range width {
+					fmt.Print("=")
+				}
+			}
+		}
+	case "info":
+		if len(os.Args) < 3 {
+			fmt.Println("Usage: eon info <package>")
+			os.Exit(1)
+		}
+
+		err := common.EstablishDBConnection(logger)
+		if err != nil {
+			fmt.Println(color.RedString("Failed to establish a connection to the database: " + err.Error()))
+			os.Exit(1)
+		}
+
+		err = common.RefreshPackageList(common.DefaultListRepositoriesInDB, common.DefaultAddRemotePackageToDB,
+			common.DefaultGetFingerprintFromDB, common.DefaultAddFingerprintToDB, common.DefaultCheckRepositoryInDB,
+			common.DefaultAddRepositoryToDB, common.DefaultListRemotePackagesInDB, common.DefaultRemoveRemotePackageFromDB,
+			logger)
+		if err != nil {
+			fmt.Println(color.RedString("Failed to refresh package list: " + err.Error()))
+		}
+
+		remoteEpks, err := common.DefaultListRemotePackagesInDB()
+		if err != nil {
+			fmt.Println(color.RedString("Failed to list installed packages: " + err.Error()))
+			os.Exit(1)
+		}
+
+		var remoteEpk lib.RemoteEPK
+		for _, epk := range remoteEpks {
+			if epk.Name == os.Args[2] {
+				remoteEpk = epk
+				break
+			}
+		}
+
+		if remoteEpk.Name == "" {
+			fmt.Println(color.RedString("Package not found: " + os.Args[2]))
+			os.Exit(1)
+		}
+
+		epkPreMap, err, vagueErr := lib.PreMapRemoteEPK(remoteEpk, logger)
+		if err != nil || vagueErr != nil {
+			common.PreMapRemoteEPKHandleError(err, vagueErr, logger)
+		}
+
+		packageUrl, err := url.JoinPath(remoteEpk.Repository.URL, remoteEpk.Path)
+		if err != nil {
+			fmt.Println(color.RedString("Failed to join URL: " + err.Error()))
+			os.Exit(1)
+		}
+
+		metadata, err, vagueErr := lib.FullyMapMetadata(lib.StreamOrBytes{
+			IsURL: true,
+			URL:   packageUrl,
+		}, &epkPreMap, common.DefaultGetFingerprintFromDB, common.DefaultAddFingerprintToDB, func(*lib.Logger) {
+			logger.LogFunc(lib.Log{
+				Level: "WARN",
+				Content: "This server does not support range requests. Please use the -O flag to " +
+					"enable in memory mode, or contact the server administrator to use a web server " +
+					"that supports range requests, such as Apache or Nginx. The speed of download " +
+					"is considerably slowed, as we need to discard bytes since we can only read " +
+					"sequentially.",
+				Prompt: false,
+			})
+		}, logger)
+		if err != nil || vagueErr != nil {
+			common.FullyMapMetadataHandleError(err, vagueErr, logger)
+		}
+
+		width, _, err := term.GetSize(int(os.Stdout.Fd()))
+		if err != nil {
+			fmt.Println(color.RedString("Failed to get terminal width: " + err.Error()))
+			os.Exit(1)
+		}
+
+		if width < 11 {
+			fmt.Println(color.RedString("Terminal too small. Minimum required width: 11 characters."))
+			os.Exit(1)
+		}
+
+		fmt.Println()
+
+		for range width {
+			fmt.Print("=")
+		}
+
+		common.PrintWithEvenPadding("Information", width/2)
+		common.PrintWithEvenPadding("Content", width/2)
+
+		for range width {
+			fmt.Print("=")
+		}
+
+		common.PrintWithEvenPadding("Name", width/2)
+		common.PrintWithEvenPadding(epkPreMap.DisplayData.Name, width/2)
+
+		common.PrintWithEvenPadding("Version", width/2)
+		common.PrintWithEvenPadding(metadata.Version.String(), width/2)
+
+		common.PrintWithEvenPadding("Description", width/2)
+		common.PrintWithEvenPadding(metadata.Description, width/2)
+
+		common.PrintWithEvenPadding("License", width/2)
+		common.PrintWithEvenPadding(metadata.License, width/2)
+
+		common.PrintWithEvenPadding("Architecture", width/2)
+		common.PrintWithEvenPadding(metadata.Architecture, width/2)
+
+		common.PrintWithEvenPadding("Installed Size", width/2)
+		common.PrintWithEvenPadding(humanize.Bytes(metadata.DecompressedSize), width/2)
+
+		common.PrintWithEvenPadding("Download Size", width/2)
+		common.PrintWithEvenPadding(humanize.Bytes(metadata.Size), width/2)
+
+		common.PrintWithEvenPadding("Repository", width/2)
+		common.PrintWithEvenPadding(remoteEpk.Repository.Name, width/2)
+
+		common.PrintWithEvenPadding("Dependencies", width/2)
+		if len(metadata.Dependencies) == 0 {
+			common.PrintWithEvenPadding("None", width/2)
+		} else {
+			common.PrintWithEvenPadding(strings.Join(metadata.Dependencies, ", "), width/2)
+		}
+
+		// We don't print the long description - it's meant for GUIs.
+
+		for range width {
+			fmt.Print("=")
+		}
+	case "clean":
+		err := common.EstablishDBConnection(logger)
+		if err != nil {
+			fmt.Println(color.RedString("Failed to establish a connection to the database: " + err.Error()))
+			os.Exit(1)
+		}
+
+		packages, _, repositoryMap, _, err := common.DefaultListEPKsInDB()
+		if err != nil {
+			fmt.Println(color.RedString("Failed to list installed packages: " + err.Error()))
+			os.Exit(1)
+		}
+
+		if len(packages) == 0 {
+			fmt.Println("No packages to clean.")
+			os.Exit(0)
+		} else {
+			var removeList []common.RemovePackage
+			for _, pkg := range packages {
+				// Check if it's a dependency of another package.
+				if pkg.IsDependency {
+					// Add it to list of candidates for removal.
+					var removePackage common.RemovePackage
+					removePackage.Name = pkg.Name
+					removePackage.DisplayData = pkg
+					removeList = append(removeList, removePackage)
+				}
+			}
+
+			for _, pkg := range removeList {
+				// Check if it's parent is still installed.
+				for _, epk := range packages {
+					for _, dep := range epk.Dependencies {
+						if dep == pkg.Name {
+							// First, check if it's in the list of packages to remove.
+							var found bool
+							for _, epkName := range removeList {
+								if epkName.Name == epk.Name {
+									found = true
+									break
+								}
+							}
+							if !found {
+								fmt.Println(color.RedString("Package " + pkg.Name + " is a dependency of another package (" + epk.Name + ") and cannot be removed."))
+								os.Exit(1)
+							} else {
+								// It is in the list of packages to remove, we need to set this package's priority higher.
+								pkg.Priority++
+							}
+						}
+					}
+				}
+			}
+
+			if len(removeList) > 0 {
+				// First, re-order the packageRemoveList by priority, then alphabetically.
+				sort.Slice(removeList, func(i, j int) bool {
+					if removeList[i].Priority == removeList[j].Priority {
+						return removeList[i].Name < removeList[j].Name
+					}
+					return removeList[i].Priority > removeList[j].Priority
+				})
+
+				// Print the packages that will be removed.
+				fmt.Println("The following packages will be removed:")
+				width, _, err := term.GetSize(int(os.Stdout.Fd()))
+				if err != nil {
+					fmt.Println(color.RedString("Failed to get terminal width: " + err.Error()))
+					os.Exit(1)
+				}
+
+				if width < 42 {
+					fmt.Println(color.RedString("Terminal too small. Minimum required width: 42 characters."))
+					os.Exit(1)
+				}
+
+				for range width {
+					fmt.Print("=")
+				}
+
+				tableList := []string{"Package", "Architecture", "Version", "Repository", "Installed Size", "Action"}
+				maxSize := width / 6
+				for _, item := range tableList {
+					common.PrintWithEvenPadding(item, maxSize)
+				}
+
 				fmt.Println()
+
+				for range width {
+					fmt.Print("=")
+				}
+
+				for _, pkg := range removeList {
+					finalisedList := make([]string, 6)
+					finalisedList[0] = pkg.Name
+					finalisedList[1] = pkg.DisplayData.Architecture
+					finalisedList[2] = pkg.DisplayData.Version.String()
+					finalisedList[3] = repositoryMap[pkg.Name].Name
+					finalisedList[4] = humanize.Bytes(pkg.DisplayData.DecompressedSize)
+					finalisedList[5] = "Remove"
+					for _, item := range finalisedList {
+						common.PrintWithEvenPadding(item, maxSize)
+					}
+					fmt.Println()
+				}
+
+				for range width {
+					fmt.Print("=")
+				}
+
+				fmt.Println("Transaction Summary")
+				fmt.Println("\nRemoving " + humanize.Comma(int64(len(removeList))) + " packages.")
+				var space uint64
+				for _, pkg := range removeList {
+					space += pkg.DisplayData.DecompressedSize
+				}
+				fmt.Println("Total reclaimed space: " + humanize.Bytes(space) + "\n")
+
+				response := logger.LogFunc(lib.Log{
+					Level:   "INFO",
+					Content: "Proceed with removal (y/n)?",
+					Prompt:  true,
+				})
+
+				if strings.ToLower(response) == "y" {
+					for _, pkg := range removeList {
+						err, vagueErr := lib.RemoveEPK(pkg.Name, common.DefaultRemoveEPKFromDB, common.DefaultGetEPKRemoveInfoFromDB, logger)
+						if err != nil || vagueErr != nil {
+							common.RemoveEPKHandleError(err, vagueErr, logger)
+							fmt.Println(color.RedString("Failed to remove package: " + vagueErr.Error() + err.Error()))
+						}
+						fmt.Println("Removed package: " + pkg.Name)
+					}
+				} else {
+					fmt.Println("Removal cancelled.")
+					os.Exit(1)
+				}
+			} else {
+				fmt.Println("No packages to clean.")
+				os.Exit(0)
 			}
 		}
 	default:

common/main.go

@@ -19,7 +19,6 @@ import (
 	"crypto/ed25519"
 	"database/sql"
 	"encoding/binary"
-	"math/big"
 	"net/http"
 	"net/url"
 
@@ -61,7 +60,9 @@ type Plugin struct {
 }
 
 var conn *sql.DB
-var dbVersion = semver.MustParse("1.0.0-beta.4")
+
+// Database is no longer compatible with versions below 3.0.0.
+var dbVersion = semver.MustParse("3.0.0")
 
 var DefaultLogger = lib.Logger{
 	LogFunc: func(log lib.Log) string {
@@ -80,14 +81,11 @@ var DefaultLogger = lib.Logger{
 			os.Exit(1)
 		case "PROGRESS":
 			// Maths time! We need to calculate the percentage of the progress bar.
-			// Convert the total and progress to big.Floats so we can do division.
+			// Convert the total and progress to floats so we can do division.
-			floatTotal := new(big.Float)
+			var floatTotal = float64(log.Total)
-			floatProgress := new(big.Float)
+			var floatProgress = float64(log.Progress)
-			floatTotal.SetInt(log.Total)
+			// Calculate the percentage.
-			floatProgress.SetInt(log.Progress)
+			var percentage = floatProgress / floatTotal
-			// Calculate the fraction we need to multiply by 100 to get the percentage.
-			percentageBig := new(big.Float).Quo(floatProgress, floatTotal)
-			percentage, _ := percentageBig.Float64()
 			// Get the terminal width so we can calculate the width of the progress bar.
 			width, _, err := term.GetSize(int(os.Stdout.Fd()))
 			if err != nil {
@@ -193,7 +191,7 @@ var TimeMagnitudes = []humanize.RelTimeMagnitude{
 	// End of Expat / MIT licensed code
 }
 
-func HandleDependencies(previousDeps int, targetEPK InstallPackage, parentPriority int, epkList []lib.RemoteEPK, ListRemotePackagesInDB func() ([]lib.RemoteEPK, error), InstallPackageList []InstallPackage, previousPackages *[]string, logger *lib.Logger) ([]InstallPackage, int, error) {
+func HandleDependencies(previousDeps int, targetEPK InstallPackage, parentPriority int, epkList []lib.RemoteEPK, listRemotePackagesInDB func() ([]lib.RemoteEPK, error), listEPKsInDB func() (map[string]lib.DisplayData, map[string]uint64, map[string]lib.Repository, map[string]uint64, error), InstallPackageList []InstallPackage, previousPackages *[]string, logger *lib.Logger) ([]InstallPackage, int, error) {
 	// Iterate through the dependencies of the target EPK.
 dependencyLoop:
 	for _, dependency := range targetEPK.EPKPreMap.DisplayData.Dependencies {
@@ -221,7 +219,7 @@ dependencyLoop:
 					// Add the dependency to the list of previous packages.
 					*previousPackages = append(*previousPackages, targetEPK.EPKPreMap.DisplayData.Name)
 					// Recursively handle dependencies.
-					installedPackage, addedDeps, err := HandleDependencies(previousDeps, epk, parentPriority+1, epkList, ListRemotePackagesInDB, InstallPackageList, previousPackages, logger)
+					installedPackage, addedDeps, err := HandleDependencies(previousDeps, epk, parentPriority+1, epkList, listRemotePackagesInDB, listEPKsInDB, InstallPackageList, previousPackages, logger)
 					InstallPackageList = installedPackage
 					if err != nil {
 						return nil, 0, err
@@ -240,7 +238,7 @@ dependencyLoop:
 		// Check if we already have a list of remote EPKs to use, if so use it.
 		if len(epkList) == 0 || epkList == nil {
 			var err error
-			epkList, err = ListRemotePackagesInDB()
+			epkList, err = listRemotePackagesInDB()
 			if err != nil {
 				return nil, 0, err
 			}
@@ -265,7 +263,7 @@ dependencyLoop:
 				} else {
 					// Check if the installed version is outdated.
 					if version.LessThan(&epk.Version) {
-						// Yes it is: Install the new version as an upgrade.
+						// Yes it is: add it to the list of EPKs to install.
 						remoteEPK = epk
 						break
 					} else {
@@ -275,10 +273,27 @@ dependencyLoop:
 				}
 			}
 		}
-		// If the dependency doesn't exist, crash.
+
 		if !dependencyExists {
-			return nil, 0, errors.New("dependency " + dependency + " does not exist")
+			// Iterate through the list of installed EPKs to find the dependency.
+			installedEPKs, _, _, _, err := listEPKsInDB()
+			if err != nil {
+				return nil, 0, err
+			}
+
+			for installedEPK := range installedEPKs {
+				if installedEPK == dependency {
+					// The dependency is installed. Exit the loop.
+					continue dependencyLoop
+				}
+			}
+
+			// If the dependency still doesn't exist, crash.
+			if !dependencyExists {
+				return nil, 0, errors.New("dependency " + dependency + " does not exist")
+			}
 		}
+
 		// Increase the dependency's priority.
 		epkEntry.Priority = parentPriority + 1
 		// Add the dependency to the list of EPKs to install.
@@ -298,6 +313,7 @@ dependencyLoop:
 		if err != nil || vagueErr != nil {
 			return nil, 0, err
 		}
+		epkPreMap.DisplayData.IsDependency = true
 		// Set the EPKs display data.
 		epkEntry.EPKPreMap = &epkPreMap
 		if exists {
@@ -324,7 +340,7 @@ dependencyLoop:
 			// Add the dependency to the list of previous packages.
 			*previousPackages = append(*previousPackages, epkEntry.EPKPreMap.DisplayData.Name)
 			// Recursively handle dependencies.
-			installPackages, addedDeps, err := HandleDependencies(previousDeps, epkEntry, epkEntry.Priority+1, epkList, ListRemotePackagesInDB, InstallPackageList, previousPackages, logger)
+			installPackages, addedDeps, err := HandleDependencies(previousDeps, epkEntry, epkEntry.Priority+1, epkList, listRemotePackagesInDB, listEPKsInDB, InstallPackageList, previousPackages, logger)
 			InstallPackageList = installPackages
 			if err != nil {
 				return nil, 0, err
@@ -343,19 +359,19 @@ dependencyLoop:
 	return InstallPackageList, previousDeps, nil
 }
 
-func GetTotalSize(InstallPackageList []InstallPackage) *big.Int {
+func GetTotalSize(InstallPackageList []InstallPackage) uint64 {
-	totalSize := new(big.Int)
+	var totalSize uint64
 	for _, epk := range InstallPackageList {
-		totalSize.Add(totalSize, big.NewInt(epk.EPKPreMap.DisplayData.Size))
+		totalSize += epk.EPKPreMap.DisplayData.Size
 	}
 	return totalSize
 }
 
-func GetTotalInstalledSize(InstallPackageList []InstallPackage) *big.Int {
+func GetTotalInstalledSize(InstallPackageList []InstallPackage) uint64 {
-	totalSize := new(big.Int)
+	var totalSize uint64
 	for _, epk := range InstallPackageList {
 		if !epk.IsRemote {
-			totalSize.Add(totalSize, epk.EPKPreMap.DisplayData.DecompressedSize)
+			totalSize += epk.EPKPreMap.DisplayData.DecompressedSize
 		}
 	}
 	return totalSize
@@ -501,7 +517,7 @@ func InitDB(conn *sql.DB) error {
 
 	// Huge query moment. This is way too big to read comfortably, but too bad! It breaks the Jetbrains SQL formatter if
 	// I break it into multiple lines.
-	_, err = conn.Exec("CREATE TABLE packages (name TEXT NOT NULL UNIQUE, description TEXT NOT NULL, longDescription TEXT NOT NULL, version TEXT NOT NULL, author TEXT NOT NULL, license TEXT NOT NULL, architecture TEXT NOT NULL, size INTEGER NOT NULL, dependencies TEXT NOT NULL, removeScript TEXT NOT NULL, hasRemoveScript BOOLEAN NOT NULL, isDependency BOOLEAN NOT NULL DEFAULT false, repository TEXT, installedPaths TEXT)")
+	_, err = conn.Exec("CREATE TABLE packages (name TEXT NOT NULL UNIQUE, description TEXT NOT NULL, longDescription TEXT NOT NULL, version TEXT NOT NULL, author TEXT NOT NULL, license TEXT NOT NULL, architecture TEXT NOT NULL, size INTEGER NOT NULL, dependencies TEXT NOT NULL, removeScript TEXT NOT NULL, hasRemoveScript BOOLEAN NOT NULL, isDependency BOOLEAN NOT NULL DEFAULT false, repository TEXT, installedPaths TEXT, decompressedSize INTEGER NOT NULL)")
 	if err != nil {
 		return err
 	}
@@ -512,23 +528,21 @@ func InitDB(conn *sql.DB) error {
 		return err
 	}
 
-	_, err = conn.Exec("CREATE TABLE repositories (url TEXT NOT NULL UNIQUE, name TEXT NOT NULL UNIQUE, owner TEXT NOT NULL, description TEXT NOT NULL)")
+	_, err = conn.Exec("CREATE TABLE repositories (url TEXT NOT NULL UNIQUE, name TEXT NOT NULL UNIQUE, owner TEXT NOT NULL, description TEXT NOT NULL, ignore BOOLEAN NOT NULL DEFAULT false)")
+	if err != nil {
+		return err
+	}
+
+	_, err = conn.Exec("INSERT INTO repositories (url, name, owner, description, ignore) VALUES ('None', 'Local file', 'eon', 'This is a placeholder repository for local files to be registered to. Do not attempt to use this repository.', true)")
 	if err != nil {
 		return err
 	}
 
-	// Way to big. Blame IntelliJ.
 	_, err = conn.Exec("CREATE TABLE remotePackages (name TEXT NOT NULL UNIQUE, author TEXT NOT NULL, description TEXT NOT NULL, version TEXT NOT NULL, architecture TEXT NOT NULL, size BLOB NOT NULL, dependencies TEXT NOT NULL, path TEXT NOT NULL, arch TEXT NOT NULL, hash TEXT NOT NULL, repository TEXT NOT NULL)")
 	if err != nil {
 		return err
 	}
 
-	// Having exists here makes sure that there is only one global row in the table. This is a bit of a hack,
-	// but it's the only way to make sure that the version and endian-ness are always part of the database.
-
-	// Note that this is the only hack in this program (so far)! I feel somewhat proud, especially since it's less of
-	// a hack and more not utilizing the full power of SQL.
-	// - Arzumify
 	_, err = conn.Exec("CREATE TABLE global (version TEXT NOT NULL, uniquenessCheck BOOLEAN NOT NULL UNIQUE CHECK (uniquenessCheck = true) DEFAULT true)")
 	if err != nil {
 		return err
@@ -654,7 +668,7 @@ func EstablishDBConnection(logger *lib.Logger) error {
 	return nil
 }
 
-func DefaultAddEPKToDB(metadata *lib.Metadata, installedPaths []string, removeScript []byte, dependency bool, hasRemoveScript bool, size int64, repository ...string) error {
+func DefaultAddEPKToDB(metadata *lib.Metadata, installedPaths []string, removeScript []byte, dependency bool, hasRemoveScript bool, size uint64, decompressedSize uint64, repository string) error {
 	// If it already exists, delete it. This may happen in a force-install scenario.
 	_, err := conn.Exec("DELETE FROM packages WHERE name = ?", metadata.Name)
 	if err != nil {
@@ -686,17 +700,10 @@ func DefaultAddEPKToDB(metadata *lib.Metadata, installedPaths []string, removeSc
 
 	// Not that I'm complaining or anything.
 	// - Arzumify
-	if len(repository) > 0 {
+	_, err = conn.Exec("INSERT INTO packages (name, description, longDescription, version, author, license, architecture, size, dependencies, removeScript, hasRemoveScript, isDependency, repository, installedPaths, decompressedSize) VALUES (?,?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
-		_, err = conn.Exec("INSERT INTO packages (name, description, longDescription, version, author, license, architecture, size, dependencies, removeScript, hasRemoveScript, isDependency, repository, installedPaths) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+		metadata.Name, metadata.Description, metadata.LongDescription, metadata.Version.String(), metadata.Author,
-			metadata.Name, metadata.Description, metadata.LongDescription, metadata.Version.String(), metadata.Author,
+		metadata.License, metadata.Architecture, size, dependencies, string(removeScript), hasRemoveScript, dependency,
-			metadata.License, metadata.Architecture, size, dependencies, string(removeScript), hasRemoveScript, dependency,
+		repository, installedPathsString, decompressedSize)
-			repository[0], installedPathsString)
-	} else {
-		_, err = conn.Exec("INSERT INTO packages (name, description, longDescription, version, author, license, architecture, size, dependencies, removeScript, hasRemoveScript, isDependency, installedPaths) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
-			metadata.Name, metadata.Description, metadata.LongDescription, metadata.Version.String(), metadata.Author,
-			metadata.License, metadata.Architecture, size, dependencies, string(removeScript), hasRemoveScript, dependency,
-			installedPathsString)
-	}
 	if err != nil {
 		return err
 	}
@@ -739,11 +746,10 @@ func DefaultGetEPKFromDB(name string) (lib.Metadata, string, bool, bool, int64,
 	var repository string
 	var installedPaths string
 	var size int64
-	err := conn.QueryRow("SELECT description, longDescription, version, author, license, architecture, size, "+
+	err := conn.QueryRow("SELECT description, longDescription, version, author, license, architecture, size, dependencies, removeScript, hasRemoveScript, isDependency, repository, installedPaths, decompressedSize FROM packages WHERE name = ?",
-		"dependencies, removeScript, hasRemoveScript, isDependency, repository, installedPaths FROM packages WHERE name = ?",
 		name).Scan(&metadata.Description, &metadata.LongDescription, &versionString, &metadata.Author,
 		&metadata.License, &metadata.Architecture, &size, &dependencies, &removeScript, &hasRemoveScript,
-		&dependency, &repository, &installedPaths)
+		&dependency, &repository, &installedPaths, &metadata.DecompressedSize)
 	if err != nil {
 		return lib.Metadata{}, "", false, false, 0, "", nil, err
 	}
@@ -771,8 +777,8 @@ func DefaultRemoveEPKFromDB(name string) error {
 	return nil
 }
 
-func DefaultListEPKsInDB() (map[string]lib.DisplayData, map[string]*big.Int, map[string]lib.Repository, map[string]int64, error) {
+func DefaultListEPKsInDB() (map[string]lib.DisplayData, map[string]uint64, map[string]lib.Repository, map[string]uint64, error) {
-	rows, err := conn.Query("SELECT name, description, version, author, architecture, size, dependencies, repository FROM packages")
+	rows, err := conn.Query("SELECT name, description, version, author, architecture, size, dependencies, repository, isDependency, decompressedSize FROM packages")
 	if err != nil {
 		return nil, nil, nil, nil, err
 	}
@@ -780,19 +786,21 @@ func DefaultListEPKsInDB() (map[string]lib.DisplayData, map[string]*big.Int, map
 	repositoryMap := make(map[string]lib.Repository)
 	repoNameToRepo := make(map[string]lib.Repository)
 	metadataMap := make(map[string]lib.DisplayData)
-	sizes := make(map[string]*big.Int)
+	sizes := make(map[string]uint64)
-	compressedSizes := make(map[string]int64)
+	compressedSizes := make(map[string]uint64)
 	for rows.Next() {
 		var metadata lib.DisplayData
-		var size int64
+		var size uint64
 		var dependencies string
 		var repository string
 		var version string
-		err := rows.Scan(&metadata.Name, &metadata.Description, &version,
+		var isDependency bool
-			&metadata.Author, &metadata.Architecture, &size, &dependencies, &repository)
+		err := rows.Scan(&metadata.Name, &metadata.Description, &version, &metadata.Author, &metadata.Architecture,
+			&size, &dependencies, &repository, &isDependency, &metadata.DecompressedSize)
 		if err != nil {
 			return nil, nil, nil, nil, err
 		}
+		metadata.IsDependency = isDependency
 		semVer, err := semver.NewVersion(version)
 		if err != nil {
 			return nil, nil, nil, nil, err
@@ -801,21 +809,26 @@ func DefaultListEPKsInDB() (map[string]lib.DisplayData, map[string]*big.Int, map
 		metadata.Version = *semVer
 		metadata.Dependencies = strings.Split(strings.TrimSuffix(strings.TrimPrefix(dependencies, "["), "]"), ", ")
 		metadataMap[metadata.Name] = metadata
-		sizes[metadata.Name] = big.NewInt(size)
+		sizes[metadata.Name] = size
 		compressedSizes[metadata.Name] = size
 		// Check if the repository is in the repoNameToRepo map
-		_, ok := repoNameToRepo[repository]
+		var repo lib.Repository
+		repo, ok := repoNameToRepo[repository]
 		if !ok {
 			// If it's not, find the repository and add it to the map
-			var repo lib.Repository
+			repo.Name = repository
 			err := conn.QueryRow("SELECT url, owner, description FROM repositories WHERE name = ?", repository).Scan(&repo.URL, &repo.Owner, &repo.Description)
 			if err != nil {
-				return nil, nil, nil, nil, err
+				if errors.Is(err, sql.ErrNoRows) {
+					return nil, nil, nil, nil, errors.New("repository " + repository + " not found")
+				} else {
+					return nil, nil, nil, nil, err
+				}
 			}
-			repositoryMap[repository] = repo
+			repoNameToRepo[repository] = repo
 		}
 		// Add the repository to the repository map
-		repositoryMap[metadata.Name] = repoNameToRepo[repository]
+		repositoryMap[metadata.Name] = repo
 	}
 
 	return metadataMap, sizes, repositoryMap, compressedSizes, nil
@@ -917,7 +930,7 @@ func DefaultCheckRepositoryInDB(repository string) (bool, error) {
 }
 
 func DefaultListRepositoriesInDB() ([]lib.Repository, error) {
-	rows, err := conn.Query("SELECT url, name, owner, description FROM repositories")
+	rows, err := conn.Query("SELECT url, name, owner, description FROM repositories WHERE ignore = false")
 	if err != nil {
 		return []lib.Repository{}, err
 	}
@@ -982,7 +995,7 @@ func DefaultListRemotePackagesInDB() ([]lib.RemoteEPK, error) {
 	for rows.Next() {
 		var name, author, description, version, architecture, dependencies, path, arch, repository string
 		var hashBytes []byte
-		var size int64
+		var size uint64
 		err := rows.Scan(&name, &author, &description, &version, &architecture, &size, &dependencies, &path, &arch,
 			&hashBytes, &repository)
 		if err != nil {

lib/main.go

@@ -15,7 +15,6 @@ import (
 	"encoding/binary"
 	"encoding/hex"
 	"encoding/json"
-	"math/big"
 	"net/http"
 	"net/url"
 	"os/exec"
@@ -35,7 +34,7 @@ type RemoteEPK struct {
 	Description    string
 	Version        semver.Version
 	Architecture   string
-	CompressedSize int64
+	CompressedSize uint64
 	Dependencies   []string
 	Path           string
 	Arch           string
@@ -67,8 +66,8 @@ type Metadata struct {
 	Architecture     string
 	Dependencies     []string
 	SpecialFiles     SpecialFiles
-	Size             int64
+	Size             uint64
-	DecompressedSize *big.Int
+	DecompressedSize uint64
 }
 
 // EPKPreMap is a struct that contains the metadata of the EPK
@@ -77,7 +76,7 @@ type EPKPreMap struct {
 	MetadataMap    map[string]interface{}
 	IsLittleEndian bool
 	IsUpgrade      bool
-	TarOffset      int64
+	TarOffset      uint64
 }
 
 // DisplayData is a struct that contains the display data of the EPK
@@ -87,9 +86,10 @@ type DisplayData struct {
 	Architecture     string
 	Description      string
 	Version          semver.Version
-	Size             int64
+	Size             uint64
-	DecompressedSize *big.Int
+	DecompressedSize uint64
 	Dependencies     []string
+	IsDependency     bool
 }
 
 // PotentiallyNullEPKPreMap is a EPKPreMap that can be nil
@@ -104,8 +104,8 @@ type Log struct {
 	Content   string
 	Prompt    bool
 	PlaySound bool
-	Progress  *big.Int
+	Progress  uint64
-	Total     *big.Int
+	Total     uint64
 	Overwrite bool
 }
 
@@ -202,10 +202,12 @@ func MkdirAllWithPaths(path string, perm os.FileMode) ([]string, error) {
 	return createdDirs, nil
 }
 
-func preMapEpkFromBytes(metaDataBytes []byte, littleEndian bool, size int64, offset int64) (EPKPreMap, error) {
+func preMapEpkFromBytes(metaDataBytes []byte, littleEndian bool, size uint64, offset uint64) (EPKPreMap, error) {
 	// Unmarshal the JSON
 	var displayDataMap map[string]interface{}
-	err := json.Unmarshal(metaDataBytes, &displayDataMap)
+	decoder := json.NewDecoder(bytes.NewReader(metaDataBytes))
+	decoder.UseNumber()
+	err := decoder.Decode(&displayDataMap)
 	if err != nil {
 		return EPKPreMap{}, errors.New("metadata is not valid JSON")
 	}
@@ -222,12 +224,14 @@ func preMapEpkFromBytes(metaDataBytes []byte, littleEndian bool, size int64, off
 	// Map the display data
 	var ok bool
 	// Set the size
-	sizeBigInt, ok := displayDataMap["size"].(string)
+	sizeJSON, ok := displayDataMap["size"].(json.Number)
 	if !ok {
-		return EPKPreMap{}, errors.New("size is not a string")
+		return EPKPreMap{}, errors.New("size is not a number")
+	}
+	parsedDisplayData.DisplayData.DecompressedSize, err = strconv.ParseUint(sizeJSON.String(), 10, 64)
+	if err != nil {
+		return EPKPreMap{}, err
 	}
-	parsedDisplayData.DisplayData.DecompressedSize = new(big.Int)
-	parsedDisplayData.DisplayData.DecompressedSize.SetString(sizeBigInt, 10)
 	// Set the name, author, version, arch, and dependencies
 	parsedDisplayData.DisplayData.Name, ok = displayDataMap["name"].(string)
 	if !ok {
@@ -263,7 +267,7 @@ func preMapEpkFromBytes(metaDataBytes []byte, littleEndian bool, size int64, off
 }
 
 // ConstMapEPKMetadataOffset is the offset of the metadata in the EPK: 3 magic bytes, 1 endian byte, 8 offset bytes, 64 signature bytes, and 32 public key bytes
-var ConstMapEPKMetadataOffset int64 = 108
+var ConstMapEPKMetadataOffset uint64 = 108
 
 var ErrPreMapEPKCouldNotRead = errors.New("could not read EPK")
 var ErrPreMapEPKHasNetworkStream = errors.New("network streams are not supported")
@@ -272,7 +276,7 @@ var ErrPreMapEPKHasInvalidEndian = errors.New("has invalid endian")
 var ErrPreMapEPKCouldNotMapJSON = errors.New("could not map metadata")
 
 // PreMapEPK maps enough data to create the display summary of an EPK
-func PreMapEPK(epkBytes StreamOrBytes, epkSize int64) (EPKPreMap, error, error) {
+func PreMapEPK(epkBytes StreamOrBytes, epkSize uint64) (EPKPreMap, error, error) {
 	// Say that we don't support network streams
 	if epkBytes.IsURL {
 		return EPKPreMap{}, nil, ErrPreMapEPKHasNetworkStream
@@ -320,7 +324,7 @@ func PreMapEPK(epkBytes StreamOrBytes, epkSize int64) (EPKPreMap, error, error)
 	}
 
 	// Now we can get the offsets of the tar archive
-	var tarArchiveOffset int64
+	var tarArchiveOffset uint64
 	if epkBytes.IsFileStream {
 		var tarArchiveOffsetBytes = make([]byte, 8)
 		_, err := epkBytes.FileStream.ReadAt(tarArchiveOffsetBytes, 4)
@@ -328,15 +332,15 @@ func PreMapEPK(epkBytes StreamOrBytes, epkSize int64) (EPKPreMap, error, error)
 			return EPKPreMap{}, err, ErrPreMapEPKCouldNotRead
 		}
 		if littleEndian {
-			tarArchiveOffset = int64(binary.LittleEndian.Uint64(tarArchiveOffsetBytes))
+			tarArchiveOffset = binary.LittleEndian.Uint64(tarArchiveOffsetBytes)
 		} else {
-			tarArchiveOffset = int64(binary.BigEndian.Uint64(tarArchiveOffsetBytes))
+			tarArchiveOffset = binary.BigEndian.Uint64(tarArchiveOffsetBytes)
 		}
 	} else {
 		if littleEndian {
-			tarArchiveOffset = int64(binary.LittleEndian.Uint64(epkBytes.Bytes[4:12]))
+			tarArchiveOffset = binary.LittleEndian.Uint64(epkBytes.Bytes[4:12])
 		} else {
-			tarArchiveOffset = int64(binary.BigEndian.Uint64(epkBytes.Bytes[4:12]))
+			tarArchiveOffset = binary.BigEndian.Uint64(epkBytes.Bytes[4:12])
 		}
 	}
 
@@ -345,11 +349,14 @@ func PreMapEPK(epkBytes StreamOrBytes, epkSize int64) (EPKPreMap, error, error)
 	var preMapEpk EPKPreMap
 	if epkBytes.IsFileStream {
 		var metadataBuffer = make([]byte, tarArchiveOffset-ConstMapEPKMetadataOffset)
-		_, err := epkBytes.FileStream.ReadAt(metadataBuffer, ConstMapEPKMetadataOffset)
+		_, err := epkBytes.FileStream.ReadAt(metadataBuffer, int64(ConstMapEPKMetadataOffset))
 		if err != nil {
 			return EPKPreMap{}, err, ErrPreMapEPKCouldNotRead
 		}
 		preMapEpk, err = preMapEpkFromBytes(metadataBuffer, littleEndian, epkSize, tarArchiveOffset)
+		if err != nil {
+			return EPKPreMap{}, err, ErrPreMapEPKCouldNotMapJSON
+		}
 	} else {
 		var err error
 		preMapEpk, err = preMapEpkFromBytes(epkBytes.Bytes[ConstMapEPKMetadataOffset:tarArchiveOffset], littleEndian, epkSize, tarArchiveOffset)
@@ -423,6 +430,9 @@ func PreMapRemoteEPK(remoteEPK RemoteEPK, logger *Logger) (EPKPreMap, error, err
 		if err != nil {
 			return EPKPreMap{}, err, ErrPreMapRemoteEPKCouldNotCloseConnection
 		}
+	} else if resp.StatusCode == 404 {
+		// Repository not found
+		return EPKPreMap{}, errors.New("repository not found: " + strconv.Itoa(resp.StatusCode)), ErrPreMapRemoteEPKUnexpectedStatusCode
 	} else {
 		// Something went wrong
 		return EPKPreMap{}, errors.New("unexpected status code: " + strconv.Itoa(resp.StatusCode)), ErrPreMapRemoteEPKUnexpectedStatusCode
@@ -444,11 +454,11 @@ func PreMapRemoteEPK(remoteEPK RemoteEPK, logger *Logger) (EPKPreMap, error, err
 	}
 
 	// Now we can get the offsets of the tar archive
-	var tarArchiveOffset int64
+	var tarArchiveOffset uint64
 	if littleEndian {
-		tarArchiveOffset = int64(binary.LittleEndian.Uint64(epkHeaderBytes[4:12]))
+		tarArchiveOffset = binary.LittleEndian.Uint64(epkHeaderBytes[4:12])
 	} else {
-		tarArchiveOffset = int64(binary.BigEndian.Uint64(epkHeaderBytes[4:12]))
+		tarArchiveOffset = binary.BigEndian.Uint64(epkHeaderBytes[4:12])
 	}
 
 	// No signature verification for you
@@ -457,7 +467,7 @@ func PreMapRemoteEPK(remoteEPK RemoteEPK, logger *Logger) (EPKPreMap, error, err
 	displayDataBytes := make([]byte, tarArchiveOffset-ConstMapEPKMetadataOffset)
 	if rangeSupported {
 		// Send another request to fetch the display data
-		req.Header.Set("Range", "bytes=108-"+strconv.FormatInt(tarArchiveOffset-1, 10))
+		req.Header.Set("Range", "bytes=108-"+strconv.FormatUint(tarArchiveOffset-1, 10))
 		resp, err = http.DefaultClient.Do(req)
 		if err != nil {
 			return EPKPreMap{}, err, ErrPreMapRemoteEPKCouldNotSendRequest
@@ -689,7 +699,7 @@ func FullyMapMetadata(epkBytes StreamOrBytes, preMap *EPKPreMap, checkFingerprin
 	if epkBytes.IsFileStream {
 		// Now we can verify the signature. First, we need to take the checksum of the metadata
 		// Seeking is better than using ReadAt because it allows us to not have to load the entire file into memory
-		_, err = epkBytes.FileStream.Seek(ConstMapEPKMetadataOffset, io.SeekStart)
+		_, err = epkBytes.FileStream.Seek(int64(ConstMapEPKMetadataOffset), io.SeekStart)
 		if err != nil {
 			return &Metadata{}, err, ErrFullyMapMetadataCouldNotJump
 		}
@@ -788,12 +798,14 @@ func FullyMapMetadata(epkBytes StreamOrBytes, preMap *EPKPreMap, checkFingerprin
 	if !ok {
 		return &Metadata{}, errors.New("license is not a string"), ErrFullyMapMetadataCouldNotMapJSON
 	}
-	decompressedSizeString, ok := preMap.MetadataMap["size"].(string)
+	decompressedSizeJSON, ok := preMap.MetadataMap["size"].(json.Number)
 	if !ok {
-		return &Metadata{}, errors.New("size is not a string"), ErrFullyMapMetadataCouldNotMapJSON
+		return &Metadata{}, errors.New("size is not a number"), ErrFullyMapMetadataCouldNotMapJSON
+	}
+	parsedMetadata.DecompressedSize, err = strconv.ParseUint(decompressedSizeJSON.String(), 10, 64)
+	if err != nil {
+		return &Metadata{}, err, ErrFullyMapMetadataCouldNotMapJSON
 	}
-	parsedMetadata.DecompressedSize = new(big.Int)
-	parsedMetadata.DecompressedSize.SetString(decompressedSizeString, 10)
 
 	return &parsedMetadata, nil, nil
 }
@@ -814,15 +826,15 @@ var ErrInstallEPKCouldNotRemoveTempDir = errors.New("could not remove temporary
 // ProgressWriter implements a writer that intercepts writes in order to log progress
 type ProgressWriter struct {
 	Logger *Logger
-	Total  *big.Int
+	Total  uint64
 	Writer io.Writer
 }
 
 // Write writes to the ProgressWriter
 func (writer *ProgressWriter) Write(p []byte) (n int, err error) {
-	byteCount := new(big.Int)
+	var byteCount uint64
 	for range p {
-		byteCount.Add(byteCount, big.NewInt(1))
+		byteCount++
 	}
 	if writer.Logger.ProgressSupported {
 		writer.Logger.LogFunc(Log{
@@ -834,7 +846,7 @@ func (writer *ProgressWriter) Write(p []byte) (n int, err error) {
 	} else {
 		writer.Logger.LogFunc(Log{
 			Level:   "INFO",
-			Content: "Written " + humanize.BigIBytes(byteCount) + " out of " + humanize.BigIBytes(writer.Total),
+			Content: "Written " + humanize.Bytes(byteCount) + " out of " + humanize.Bytes(writer.Total),
 			Prompt:  false,
 		})
 	}
@@ -848,7 +860,7 @@ func (writer *ProgressWriter) Write(p []byte) (n int, err error) {
 }
 
 // InstallEPK installs an EPK file
-func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, addEPKToDB func(*Metadata, []string, []byte, bool, bool, int64, ...string) error, logger *Logger) (string, error, error) {
+func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, addEPKToDB func(*Metadata, []string, []byte, bool, bool, uint64, uint64, string) error, logger *Logger) (string, error, error) {
 	// Create the temporary directory
 	tempDir, err := os.MkdirTemp("/tmp", "eon-install-")
 	if err != nil {
@@ -859,7 +871,7 @@ func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, a
 	var connection io.ReadCloser
 	if epkBytes.IsFileStream {
 		// Seek to the correct position in the EPK
-		_, err = epkBytes.FileStream.Seek(preMap.TarOffset, io.SeekStart)
+		_, err = epkBytes.FileStream.Seek(int64(preMap.TarOffset), io.SeekStart)
 		if err != nil {
 			return "", err, nil
 		}
@@ -876,7 +888,7 @@ func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, a
 			return tempDir, err, ErrInstallEPKCouldNotCreateZStandardReader
 		}
 		// Set the range header
-		req.Header.Set("Range", "bytes="+strconv.FormatInt(preMap.TarOffset, 10)+"-")
+		req.Header.Set("Range", "bytes="+strconv.FormatUint(preMap.TarOffset, 10)+"-")
 		// Send the request
 		resp, err := http.DefaultClient.Do(req)
 		if err != nil {
@@ -891,9 +903,9 @@ func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, a
 			// God this is painful. Let's give the user a progress bar to make it less painful
 			_, err := io.CopyN(&ProgressWriter{
 				Logger: logger,
-				Total:  big.NewInt(preMap.TarOffset),
+				Total:  preMap.TarOffset,
 				Writer: io.Discard,
-			}, connection, preMap.TarOffset)
+			}, connection, int64(preMap.TarOffset))
 			if err != nil {
 				return tempDir, err, ErrInstallEPKCouldNotDecompressTarArchive
 			}
@@ -918,7 +930,7 @@ func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, a
 	tarReader := tar.NewReader(zStandardReader)
 
 	// Create a goroutine to see how much of the decompressed size we have decompressed
-	written := new(big.Int)
+	var written uint64
 	stop := make(chan bool)
 	go func() {
 		for {
@@ -936,7 +948,7 @@ func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, a
 				} else {
 					logger.LogFunc(Log{
 						Level:   "INFO",
-						Content: "Decompressed " + humanize.Bytes(uint64(written.Int64())) + " of " + humanize.Bytes(uint64(metadata.DecompressedSize.Int64())),
+						Content: "Decompressed " + humanize.Bytes(written) + " of " + humanize.Bytes(metadata.DecompressedSize),
 						Prompt:  false,
 					})
 					time.Sleep(1 * time.Second)
@@ -1066,19 +1078,12 @@ func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, a
 						return tempDir, err, ErrInstallEPKCouldNotDecompressTarArchive
 					}
 
-					written.Add(written, big.NewInt(writtenFile))
+					written += uint64(writtenFile)
 
 					err = file.Close()
 					if err != nil {
 						return tempDir, err, ErrInstallEPKCouldNotCloseTarReader
 					} else {
-						// Check if the files are in noDelete
-						for _, file := range metadata.SpecialFiles.NoDelete {
-							if strings.TrimSuffix(target, "/") == strings.TrimSuffix(file, "/") {
-								// This file is a special file and should not be deleted
-								continue
-							}
-						}
 						if !isHook {
 							// Add the file to the installed files
 							installedFiles = append(installedFiles, target)
@@ -1098,6 +1103,108 @@ func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, a
 						}
 					}
 				}
+
+				// It's not special, so we can replace it
+				file, err := os.OpenFile(target, os.O_CREATE|os.O_RDWR|os.O_TRUNC, os.FileMode(header.Mode))
+				if err != nil {
+					return tempDir, err, ErrInstallEPKCouldNotCreateFile
+				}
+
+				writtenFile, err := io.Copy(file, tarReader)
+				if err != nil {
+					return tempDir, err, ErrInstallEPKCouldNotDecompressTarArchive
+				}
+
+				written += uint64(writtenFile)
+
+				err = file.Close()
+				if err != nil {
+					return tempDir, err, ErrInstallEPKCouldNotCloseTarReader
+				} else {
+					if !isHook {
+						// Add the file to the installed files
+						installedFiles = append(installedFiles, target)
+					}
+				}
+			}
+		case tar.TypeSymlink:
+			// Check if the symlink has anywhere to go
+			_, err := os.Stat(filepath.Dir(target))
+			if err != nil {
+				// No, it doesn't. Create the directory
+				if errors.Is(err, os.ErrNotExist) {
+					// We assume 0755 for directories
+					paths, err := MkdirAllWithPaths(filepath.Dir(target), 0755)
+					if err != nil {
+						return tempDir, err, ErrInstallEPKCouldNotCreateDir
+					} else {
+						// Check if the files are in noDelete
+						for _, file := range metadata.SpecialFiles.NoDelete {
+							if strings.TrimSuffix(target, "/") == strings.TrimSuffix(file, "/") {
+								// This file is a special file and should not be deleted
+								continue
+							}
+						}
+						if !isHook {
+							// Add the directory to the installed files
+							installedFiles = append(installedFiles, filepath.Dir(target))
+
+							// Add the paths to the installed files
+							if paths != nil {
+								installedFiles = append(installedFiles, paths...)
+							}
+						}
+					}
+				} else {
+					return tempDir, err, ErrInstallEPKCouldNotStatDir
+				}
+			}
+
+			// Check if the symlink already exists
+			_, err = os.Lstat(target)
+			if err != nil {
+				if errors.Is(err, os.ErrNotExist) {
+					// Great, the symlink does not exist. Let's create it.
+
+					err = os.Symlink(header.Linkname, target)
+					if err != nil {
+						return tempDir, err, ErrInstallEPKCouldNotCreateFile
+					} else {
+						if !isHook {
+							// Add the symlink to the installed files
+							installedFiles = append(installedFiles, target)
+						}
+					}
+				} else {
+					return tempDir, err, ErrInstallEPKCouldNotStatFile
+				}
+			} else {
+				// See if it's an upgrade or not
+				if preMap.IsUpgrade {
+					// Check if it's a special file
+					for _, file := range metadata.SpecialFiles.NoReplace {
+						if strings.TrimSuffix(target, "/") == strings.TrimSuffix(file, "/") {
+							// This file is a special file and should not be replaced
+							continue
+						}
+					}
+				}
+
+				// It's not special, so we can replace it
+				err = os.Remove(target)
+				if err != nil {
+					return tempDir, err, ErrInstallEPKCouldNotCreateFile
+				}
+
+				err = os.Symlink(header.Linkname, target)
+				if err != nil {
+					return tempDir, err, ErrInstallEPKCouldNotCreateFile
+				} else {
+					if !isHook {
+						// Add the symlink to the installed files
+						installedFiles = append(installedFiles, target)
+					}
+				}
 			}
 		}
 	}
@@ -1189,24 +1296,24 @@ func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, a
 	file, err := os.ReadFile(filepath.Join(tempDir, "hooks", "remove.sh"))
 	if err != nil {
 		if !errors.Is(err, os.ErrNotExist) {
+			return tempDir, err, ErrInstallEPKCouldNotAddEPKToDB
+		} else {
 			var err error
 			if !epkBytes.IsRemote {
-				err = addEPKToDB(metadata, installedFiles, []byte{}, false, false, metadata.Size)
+				err = addEPKToDB(metadata, installedFiles, []byte{}, preMap.DisplayData.IsDependency, false, metadata.Size, metadata.DecompressedSize, "Local file")
 			} else {
-				err = addEPKToDB(metadata, installedFiles, []byte{}, false, false, metadata.Size, epkBytes.RepositoryName)
+				err = addEPKToDB(metadata, installedFiles, []byte{}, preMap.DisplayData.IsDependency, false, metadata.Size, metadata.DecompressedSize, epkBytes.RepositoryName)
 			}
 			if err != nil {
 				return tempDir, err, ErrInstallEPKCouldNotAddEPKToDB
 			}
-		} else {
-			return tempDir, err, ErrInstallEPKCouldNotAddEPKToDB
 		}
 	} else {
 		var err error
 		if !epkBytes.IsRemote {
-			err = addEPKToDB(metadata, installedFiles, file, false, true, metadata.Size)
+			err = addEPKToDB(metadata, installedFiles, file, preMap.DisplayData.IsDependency, true, metadata.Size, metadata.DecompressedSize, "Local file")
 		} else {
-			err = addEPKToDB(metadata, installedFiles, file, false, true, metadata.Size, epkBytes.RepositoryName)
+			err = addEPKToDB(metadata, installedFiles, file, preMap.DisplayData.IsDependency, true, metadata.Size, metadata.DecompressedSize, epkBytes.RepositoryName)
 		}
 		if err != nil {
 			return tempDir, err, ErrInstallEPKCouldNotAddEPKToDB
@@ -1222,8 +1329,8 @@ func InstallEPK(epkBytes StreamOrBytes, metadata *Metadata, preMap *EPKPreMap, a
 	stop <- true
 	logger.LogFunc(Log{
 		Level:     "PROGRESS",
-		Progress:  big.NewInt(1),
+		Progress:  1,
-		Total:     big.NewInt(1),
+		Total:     1,
 		Overwrite: true,
 	})
 
@@ -1413,12 +1520,12 @@ func AddRepository(url string, addRepositoryToDB func(Repository, bool) error, g
 			return "", errors.New("package version is not a valid semver version"), ErrAddRepositoryHasInvalidMetadata
 		}
 
-		sizeString, ok := epk["size"].(string)
+		sizeString, ok := epk["size"].(json.Number)
 		if !ok {
-			return "", errors.New("package size is not a string"), ErrAddRepositoryHasInvalidMetadata
+			return "", errors.New("package size is not a number"), ErrAddRepositoryHasInvalidMetadata
 		}
 
-		size, err := strconv.ParseInt(sizeString, 10, 64)
+		size, err := strconv.ParseUint(sizeString.String(), 10, 64)
 		if err != nil {
 			return "", errors.New("package size is not a number"), ErrAddRepositoryHasInvalidMetadata
 		}

main.go

@@ -0,0 +1,9 @@
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	fmt.Println("Run the makefile to build the project, not go build")
+}