fix algo

.github/workflows/release.yaml

@@ -1,8 +1,8 @@
-name: build-and-test
+name: build-release
 on:
   push:
     tags:
-      - "*"
+      - "v*.*.*"
 
 jobs:
   release:
@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Set up Go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v5
         with:
           go-version: 1.22.11
 
@@ -30,3 +30,58 @@ jobs:
           tag: ${{ github.ref_name }}
           file: ./releases/*
           file_glob: true
+
+      - name: Build Changelog
+        id: github_release
+        uses: mikepenz/release-changelog-builder-action@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          mode: "PR"
+          configurationJson: |
+            {
+              "template": "#{{CHANGELOG}}\n\n**Full Changelog**: #{{RELEASE_DIFF}}",
+              "pr_template": "- #{{TITLE}} (##{{NUMBER}}) by #{{AUTHOR}}\n#{{BODY}}",
+              "empty_template": "- no changes",
+              "categories": [
+                {
+                    "title": "## New Features",
+                    "labels": ["add", "feature"]
+                },
+                {
+                    "title": "## Bug Fixes",
+                    "labels": ["fix", "bug", "revert"]
+                },
+                {
+                    "title": "## Documentation Enhancements",
+                    "labels": ["doc"]
+                },
+                {
+                    "title": "## Refactoring Efforts",
+                    "labels": ["refactor"]
+                },
+                {
+                    "title": "## Miscellaneus Changes",
+                    "labels": []
+                }
+              ],
+              "ignore_labels": [
+                 "duplicate", "good first issue", "help wanted", "invalid", "question", "wontfix"
+              ],
+              "label_extractor": [
+                 {
+                    "pattern": "(.) (.+)",
+                    "target": "$1"
+                 },
+                 {
+                    "pattern": "(.) (.+)",
+                    "target": "$1",
+                    "on_property": "title"
+                 }
+              ]
+            }
+    
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          body: ${{steps.github_release.outputs.changelog}}

README.md

@@ -5,6 +5,52 @@
 [![Go Report Card](https://goreportcard.com/badge/github.com/tlinden/gowipe)](https://goreportcard.com/report/github.com/tlinden/gowipe)
 [![GitHub release](https://img.shields.io/github/v/release/tlinden/gowipe?color=%2300a719)](https://github.com/TLINDEN/gowipe/releases/latest)
 
+## Description
+
+`gowipe` is a simple self contained tool to securely wipe files and
+directories. By default it renames and overwrites files and
+directories 30 times and uses the `secure` mode, which uses strong
+random bytes for the overwriting process. Gowipe writes as much bytes
+into a file as its original size.
+
+You can tweak mode and round numbers. Other modes are `zero`, which
+uses zeroes for overwriting (not recommended) or `encrypt` which
+encrypts the data using ChaCha20Poly1305 and a strong random key. This is the most
+secure but also to slowest mode.
+
+Although you can use `gowipe` on SSD disks, it doesn't make much
+sense. To wipe such a disk you have to resort to other means. But you
+can savely use it on magnetic discs or usb drives.
+
+Of course there are many other such tools available, this one is
+insofar special as you can download a pre-compiled binary without any
+library dependencies. This allows you to wipe files on systems, where
+you cannot install a wiper via some package management (such as
+appliance systems or vm's).
+
+## Example
+
+Overwrite the directory `vhs` recursively 50 times using strong
+encryption and verbose output:
+
+```shell
+gowipe  -c 50 -E -r -v vhs
+Wiped vhs/help.png (355011 bytes)
+Wiped vhs/rec.Dockerfile (348 bytes)
+Wiped vhs/rec.gif (3533338 bytes)
+Wiped vhs/rec.tape (852 bytes)
+Wiped vhs (4096 bytes)
+
+   Dirs wiped: 1
+  Files wiped: 5
+Bytes deleted: 3889549
+ Time elapsed: 426.286639ms
+  Overwritten: 50 times
+    Wipe mode: encrypt
+ Recurse dirs: true
+```
+
+## Usage
 
 ```
 Usage: gowipe [-rcvz] <file|directory>...

crypto.go

@@ -1,5 +1,5 @@
 /*
-Copyright © 2022 Thomas von Dein
+Copyright © 2022-2025 Thomas von Dein
 
 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

main.go

@@ -1,5 +1,5 @@
 /*
-Copyright © 2022 Thomas von Dein
+Copyright © 2022-2025 Thomas von Dein
 
 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
@@ -22,12 +22,13 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"time"
 
 	"github.com/JojiiOfficial/shred"
 	flag "github.com/spf13/pflag"
 )
 
-const VERSION string = "0.0.3"
+const VERSION string = "0.0.4"
 const Usage string = `This is gowipe - destruct files in a non-recoverable way.
 
 Usage: gowipe [-rcvz] <file|directory>...
@@ -55,6 +56,9 @@ type Conf struct {
 	nodelete bool
 	norename bool
 	verbose  bool
+	files    int
+	dirs     int
+	size     int64
 }
 
 func main() {
@@ -138,14 +142,26 @@ func main() {
 	shredder := shred.Shredder{}
 	shredconf := shred.NewShredderConf(&shredder, option, c.count, !c.nodelete)
 
+	start := time.Now()
+
 	for _, file := range flag.Args() {
 		Wipe(file, &c, shredconf)
 	}
+
+	if c.verbose {
+		fmt.Println()
+		fmt.Printf("   Dirs wiped: %d\n", c.dirs)
+		fmt.Printf("  Files wiped: %d\n", c.files)
+		fmt.Printf("Bytes deleted: %d\n", c.size)
+		fmt.Printf(" Time elapsed: %s\n", time.Since(start))
+		fmt.Printf("  Overwritten: %d times\n", c.count)
+		fmt.Printf("    Wipe mode: %s\n", c.mode)
+		fmt.Printf(" Recurse dirs: %t\n", c.recurse)
+	}
 }
 
 func Wipe(file string, c *Conf, wiper *shred.ShredderConf) {
 	if info, err := os.Stat(file); err == nil {
-
 		if info.IsDir() {
 			if !c.recurse {
 				fmt.Printf("-r not set, ignoring directory %s\n", file)
@@ -167,6 +183,8 @@ func Wipe(file string, c *Conf, wiper *shred.ShredderConf) {
 				if err != nil {
 					log.Fatal(err)
 				}
+
+				c.dirs++
 			}
 		} else {
 			if c.mode == "encrypt" {
@@ -186,11 +204,15 @@ func Wipe(file string, c *Conf, wiper *shred.ShredderConf) {
 					log.Fatal(err)
 				}
 			}
+
+			c.size += info.Size()
 		}
 
 		if c.verbose {
-			fmt.Printf("Wiped %d times: %s\n", c.count, file)
+			fmt.Printf("Wiped %s (%d bytes)\n", file, info.Size())
 		}
+
+		c.files++
 	} else {
 		if os.IsNotExist(err) {
 			fmt.Printf("No such file or directory: %s\n", file)
@@ -227,10 +249,6 @@ func Rename(file string, c *Conf) string {
 			}
 		}
 
-		if c.verbose {
-			fmt.Printf("renaming %s/%s => %s/%s\n", dir, base, dir, newname)
-		}
-
 		err := os.Rename(filepath.Join(dir, base), filepath.Join(dir, newname))
 		if err != nil {
 			log.Fatal(err)

mkrel.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# Copyright © 2022 Thomas von Dein
+# Copyright © 2022-2025 Thomas von Dein
 
 # 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